CN104214986B - Air-conditioning system and the defrosting control method of air-conditioning system - Google Patents
Air-conditioning system and the defrosting control method of air-conditioning system Download PDFInfo
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- CN104214986B CN104214986B CN201410445316.1A CN201410445316A CN104214986B CN 104214986 B CN104214986 B CN 104214986B CN 201410445316 A CN201410445316 A CN 201410445316A CN 104214986 B CN104214986 B CN 104214986B
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Abstract
The invention discloses a kind of air-conditioning system, including cross valve, outdoor heat exchanger, indoor heat exchanger, compressor, throttle part and control module, cross valve includes exhaust end, suction end, condenser end and evaporator end, one end of wherein outdoor heat exchanger is connected with throttle part, and the other end is connected with condenser end；Indoor heat exchanger includes that two groups of heat exchanging pipes, wherein every group heat exchanging pipe include at least one heat exchange stream；When control module is used for detecting defrosting instruction, one end of heat exchange stream and evaporator end in a heat exchanging pipe is controlled, the other end is connected with throttle part；And control in another heat exchanging pipe exchange heat stream one end connect with exhaust end, the other end is connected with suction end.The invention also discloses a kind of control method of air-conditioning system.Present invention reduces the noise of air-conditioning system operation, has reached the effect for persistently heating, it is therefore prevented that as defrosting process causes indoor temperature to decline, cause environmental amenity degree relatively low.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to the defrosting control method of air-conditioning system and air-conditioning system.
Background technology
It is well known that air-conditioning system is in heating operation in prior art, it usually needs indoor heat exchanger is defrosted,
To improve the heat exchange efficiency of indoor heat exchanger.In traditional air-conditioning system, when defrosting instruction is detected, generally changed using cross valve
To scheme defrosted.As cross valve is in commutation, it will usually after producing larger noise, and cross valve commutation, will lead
Indoor heat exchanger is caused to enter defrosting mode, indoor heat exchanger will stop heating in defrost mode so that environment temperature reduces.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
Content of the invention
Present invention is primarily targeted at reduce air-conditioning system operation noise, reach the effect for persistently heating, prevent by
Cause indoor temperature to decline in defrosting process, cause environmental amenity degree relatively low.
To achieve these goals, the present invention provides a kind of air-conditioning system, changes including cross valve, outdoor heat exchanger, interior
Hot device, compressor, throttle part and control module, the cross valve include exhaust end, suction end, condenser end and evaporimeter
End, wherein described exhaust end are connected with the exhaust outlet of the compressor, and the suction end is connected with the air entry of the compressor；
One end of the outdoor heat exchanger is connected with the throttle part, and the other end is connected with the condenser end；The indoor heat exchange
Device includes that two groups of heat exchanging pipes, wherein every group heat exchanging pipe include at least one heat exchange stream；The control module is used for detecting
When defrosting instruction, one end of heat exchange stream and the evaporator end, the other end and the restriction in a heat exchanging pipe is controlled
Part is connected；And the one end for the stream that controls to exchange heat in another heat exchanging pipe is connected with the exhaust end, the other end and the suction end
Connection.
Preferably, the control module include corresponding be arranged at each heat exchange stream one end first switch unit, one
One is correspondingly arranged in the second switch unit of each heat exchange stream other end, the pipe being located between the exhaust end and the exhaust outlet
The first current divider on road, the second current divider on the pipeline between the suction end and the air entry and it is used for
Control first switch unit and the control circuit of second switch cell operation state, wherein described first switch unit include first
Switch valve and second switch valve, on pipeline of the first switch valve between each heat exchange stream and the evaporator end, institute
State on pipeline of the second switch valve between each heat exchange stream and first current divider；The second switch unit includes
Three switch valves and the 4th switch valve, on pipeline of the 3rd switch valve between each heat exchange stream and the throttle part,
On pipeline of 4th switch valve between each heat exchange stream and second current divider；The control circuit respectively with respectively
Switch valve is electrically connected.
Preferably, the control circuit is used for when heating operation instruction is detected, and control first switch valve and the 3rd is opened
Close valve to open and second switch valve and the closing of the 4th switch valve；When defrosting control instruction is detected, a heat exchanging pipe is controlled
Middle the exchange heat corresponding first switch valve of stream and the 3rd switch valve opening and second switch valve and the closing of the 4th switch valve, so that
Heat exchange stream enters heating mode, and controls the corresponding first switch valve of heat exchange stream and the 3rd switch valve in another heat exchanging pipe
Close and second switch valve and the 4th switch valve opening, so that heat exchange stream enters defrosting mode；After preset time, control
The heat exchange stream of heating mode processed switches to defrosting mode, and the heat exchange stream for controlling defrosting mode switches to heating mode.
Preferably, the first switch valve, second switch valve, the 3rd switch valve and the 4th switch valve are magnetic valve.
Preferably, when the quantity of the heat exchange stream in each heat exchanging pipe is one, first current divider and the
Two current dividers are three-way pipe.
Preferably, the indoor heat exchanger includes that interior row's heat exchanger and outer row's heat exchanger, the heat exchange stream are included by interior
First heat exchange stream of row's heat exchanger composition and the second heat exchange stream being made up of outer row's heat exchanger.
Additionally, for achieving the above object, the present invention also provides a kind of defrosting control method of air-conditioning system, the air-conditioning system
System includes that cross valve, outdoor heat exchanger, indoor heat exchanger, compressor, throttle part and control module, the cross valve include arranging
Gas end, suction end, condenser end and evaporator end, wherein described exhaust end are connected with the exhaust outlet of the compressor, the suction
Gas end is connected with the air entry of the compressor；One end of the outdoor heat exchanger is connected with the throttle part, the other end with
The condenser end connection；The indoor heat exchanger includes that two groups of heat exchanging pipes, wherein every group heat exchanging pipe include at least one
Heat exchange stream；
The defrosting control method of the air-conditioning system is comprised the following steps：
A, when defrosting instruction is detected, the control module control to exchange heat in a heat exchanging pipe stream one end with described
Evaporator end, the other end are connected with the throttle part, so that heat exchange stream enters heating mode；And control another heat exchanging pipe
One end of middle heat exchange stream is connected with the exhaust end, and the other end is connected with the suction end, so that heat exchange stream enters defrosting
Pattern；
B, after preset time, the heat exchange stream of control module control heating mode switches to defrosting mode, controls
The heat exchange stream of defrosting mode processed switches to heating mode.
Preferably, the control module include corresponding be arranged at each heat exchange stream one end first switch unit, one
One is correspondingly arranged in the second switch unit of each heat exchange stream other end, the pipe being located between the exhaust end and the exhaust outlet
The first current divider on road, the second current divider on the pipeline between the suction end and the air entry and it is used for
Control first switch unit and the control circuit of second switch cell operation state, wherein described first switch unit include first
Switch valve and second switch valve, on pipeline of the first switch valve between each heat exchange stream and the evaporator end, institute
State on pipeline of the second switch valve between each heat exchange stream and first current divider；The second switch unit includes
Three switch valves and the 4th switch valve, on pipeline of the 3rd switch valve between each heat exchange stream and the throttle part,
On pipeline of 4th switch valve between each heat exchange stream and second current divider；
Step A includes：When defrosting control instruction is detected, the control circuit controls to exchange heat in a heat exchanging pipe
The corresponding first switch valve of stream and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve, so that heat exchange stream
Road enters heating mode, and control in another heat exchanging pipe the corresponding first switch valve of heat exchange stream and the 3rd switch valve close with
And second switch valve and the 4th switch valve are opened, so that heat exchange stream enters defrosting mode.
Preferably, also include before step A：
Control first switch valve and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve.
The embodiment of the present invention controls heat exchange stream in a heat exchanging pipe by arranging control module when defrosting instruction is detected
The one end on road and the evaporator end, the other end are connected with the throttle part；And control the stream that exchanges heat in another heat exchanging pipe
One end connect with the exhaust end, the other end is connected with the suction end；It is achieved thereby that during heating operation, four need not be started
Port valve carries out commutation defrosting.Therefore the noise of air-conditioning system operation is reduced, the service life of cross valve is extended；Additionally due to
During defrosting at least one heat exchange stream in heating mode operation, so as to reach the effect for persistently heating, prevent due to
Defrosting process causes indoor temperature to decline, and causes environmental amenity degree relatively low.
Description of the drawings
Fig. 1 is the structural representation of air-conditioning system preferred embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the defrosting control method preferred embodiment of air-conditioning system of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
The present invention provides a kind of air-conditioning system, and with reference to Fig. 1, in one embodiment, the air-conditioning system includes cross valve 10, room
External heat exchanger 11, indoor heat exchanger 12, compressor 13, throttle part 14 and control module, the cross valve 10 include exhaust end
D, suction end S, condenser end C and evaporator end E, wherein described exhaust end D are connected with the exhaust outlet of the compressor 13, described
Suction end S is connected with the air entry of the compressor 13；One end of the outdoor heat exchanger 11 is connected with the throttle part 14,
The other end is connected with condenser end C；The indoor heat exchanger 12 includes two groups of heat exchanging pipes, wherein every group heat exchanging pipe bag
Include at least one heat exchange stream 121；When the control module is used for detecting defrosting instruction, heat exchange stream in one heat exchanging pipe of control
The one end on road 121 and evaporator end E, the other end are connected with the throttle part 14；And control to change in another heat exchanging pipe
One end of hot flowpath 121 is connected with the exhaust end D, and the other end is connected with the suction end S.
Specifically, above-mentioned defrosting instruction can be actively entered operational order generation by user by remote control, it is also possible to by sky
According to situation about running during heating operation, triggering automatically is produced adjusting system.Above-mentioned heat exchange stream 121 is exchanged heat by interior
The set of heat exchange tubes of device 12 is into the way of the heat exchange stream 121 can be configured according to actual needs, and here does not make further limit
Fixed.For example above-mentioned indoor heat exchanger 12 is dual-row heat exchanger, including interior row's heat exchanger and outer row's heat exchanger, the heat exchange stream
121 the second heat exchange streams for including the first heat exchange stream being made up of interior row's heat exchanger and being made up of outer row's heat exchanger.If above-mentioned
Indoor heat exchanger is one-row heat exchanger, then can be by the top half set of heat exchange tubes of heat exchanger into the first heat exchange stream, by lower half
Part set of heat exchange tubes is into the second heat exchange stream.
In air-conditioning system heating operation, control module controls one end of all heat exchange streams 121 and the evaporation first
Device end E, the other end are connected with the throttle part 14, so that all heat exchange streams 121 are in heating mode, it is achieved that empty
The heating operation of adjusting system.When defrosting instruction is detected, heat exchange stream in a heat exchanging pipe is kept heating mould by control module
Formula is run；Control to exchange heat in another heat exchanging pipe one end of stream 121 is connected with the exhaust end D, the other end and the air-breathing
End S connections, so that heat exchange stream 121 is converted to defrosting mode from heating mode in another heat exchanging pipe, heat exchange stream 121 exists
Under defrosting mode, the part high temperature refrigerant flowed out from 13 exhaust outlet of compressor will flow directly into the heat exchange stream under defrosting mode
Exchanged heat in 121, and directly flowed back to after heat exchange in compressor 13, so as to realize the defrosting function of heat exchange stream 121.Can
To be understood by, in order to reach more preferable defrosting effect, one end of heat exchange stream 121 and the steaming in a heat exchanging pipe is controlled
Device end E is sent out, the other end is connected with the throttle part 14；And control one end of heat exchange stream 121 and institute in another heat exchanging pipe
Exhaust end D connections are stated, after the other end is connected with the suction end S, through preset time, control module will control heating mode
Heat exchange stream switches to defrosting mode, and the heat exchange stream for controlling defrosting mode switches to heating mode；And after preset time,
Exit defrosting mode.So as to ensure that each heat exchange stream is defrosted.
The embodiment of the present invention controls heat exchange stream in a heat exchanging pipe by arranging control module when defrosting instruction is detected
The one end on road 121 and evaporator end E, the other end are connected with the throttle part 14；And control to change in another heat exchanging pipe
One end of hot flowpath 121 is connected with the exhaust end D, and the other end is connected with the suction end S；It is achieved thereby that heating operation
When, need not start cross valve 10 carries out commutation defrosting.Therefore the noise of air-conditioning system operation is reduced, cross valve 10 is extended
Service life；Additionally due at least one heat exchange stream is run in heating mode during defrosting, persistently make so as to reach
The effect of heat, prevents from causing indoor temperature to decline due to defrosting process, causes environmental amenity degree relatively low.
Specifically, above-mentioned control module includes corresponding the first switch unit for being arranged at 121 one end of each heat exchange stream
15th, correspond and be arranged at the second switch unit 16 of each heat exchange 121 other end of stream, be located at the exhaust end D and the row
The first current divider 17 on pipeline between gas port, on the pipeline between the suction end S and the air entry second
Current divider 18 and the control circuit for controlling 16 working condition of first switch unit 15 and second switch unit, wherein institute
Stating first switch unit 15 includes that first switch valve 151 and second switch valve 152, the first switch valve 151 are changed located at described
On pipeline between hot flowpath 121 and evaporator end E, the second switch valve 152 is located at the heat exchange stream 121 and institute
State on the pipeline between the first current divider 17；The second switch unit 16 includes the 3rd switch valve 161 and the 4th switch valve
162, on pipeline of the 3rd switch valve 161 between the heat exchange stream 121 and the throttle part 14, the described 4th
On pipeline of the switch valve 162 between the heat exchange stream 121 and second current divider 18；The control circuit respectively with
Each switch valve electrical connection.It should be noted that each switch valve includes first switch valve 151, second switch valve the 152, the 3rd
Switch valve 161 and the 4th switch valve 162.
Specifically, the control circuit is used for (the i.e. user's control air-conditioning system entrance when detecting heating operation and instructing
During heating operation), control first switch valve 151 and the 3rd switch valve 161 is opened and second switch valve 152 and the 4th switch valve
162 close；When defrosting control instruction is detected, exchange heat in one heat exchanging pipe of control 121 corresponding first switch valve 151 of stream
Open with the 3rd switch valve 161 and second switch valve 152 and the 4th switch valve 162 are closed, so that heat exchange stream 121 enters system
Heat pattern, and control in another heat exchanging pipe exchange heat stream 121 first switch valve 151 and the 3rd switch valve 161 close and
Second switch valve 152 and the 4th switch valve 162 are opened, so that heat exchange stream 121 enters defrosting mode；After preset time,
The heat exchange stream 121 of control heating mode switches to defrosting mode, and the heat exchange stream 121 of control defrosting mode is switched to and heats mould
Formula.
In the present embodiment, by taking above-mentioned dual-row heat exchanger as an example, it is explained in detail.Above-mentioned each heat exchanging pipe is changed by one
Hot flowpath 121 constitutes wherein heat exchange stream 121 includes the first heat exchange stream being made up of interior row's heat exchanger and by outer row's heat exchanger
Second heat exchange stream of composition.When heating operation instruction is detected, all of first switch valve 151 and the 3rd switch valve is controlled
161 openings and second switch valve 152 and the 4th switch valve 162 are closed so that the first heat exchange stream and the second heat exchange stream enter
Enter heating mode；When defrosting control instruction is detected, the corresponding first switch valve 151 and the 3rd of control the first heat exchange stream is opened
Close that valve 161 is opened and second switch valve 152 and the 4th switch valve 162 are closed, so that the first heat exchange stream keeps heating mode；
The corresponding first switch valve 151 of the second heat exchange stream of control simultaneously and the 3rd switch valve 161 are closed and 152 He of second switch valve
4th switch valve 162 is opened, so that the second heat exchange stream enters defrosting mode, so as to realize that the second heat exchange is defrosted.From
And realization is defrosted to the first heat exchange and after preset time, is being controlled the corresponding first switch valve 151 of the first heat exchange stream
Close with the 3rd switch valve 161 and second switch valve 152 and the 4th switch valve 162 are opened, so that the first heat exchange stream switching
To defrosting mode, so as to realize that the first heat exchange is defrosted；The corresponding first switch valve 151 of the second heat exchange stream of control simultaneously
Open with the 3rd switch valve 161 and second switch valve 152 and the 4th switch valve 162 are closed, so that the second heat exchange stream switching
To heating mode.
It is understood that above-mentioned first switch valve 151, second switch valve 152, the 3rd switch valve 161 and the 4th switch
The structure of valve 162 is configured according to actual needs, as long as automatically controlled switch valve can be realized, above-mentioned in the present embodiment
First switch valve 151, second switch valve 152, the 3rd switch valve 161 and the 4th switch valve 162 are preferably magnetic valve.Above-mentioned first
The structure of current divider 17 and the second current divider 18 is configured also dependent on being actually needed, in the present embodiment, when each heat exchanger tube
When the quantity of the heat exchange stream 121 in road is one, first current divider 17 and the second current divider 18 are preferably three-way pipe.
The present invention further also provides a kind of defrosting control method of air-conditioning system, specifically, with reference to Fig. 2, implements one
In example, the air-conditioning system includes cross valve, outdoor heat exchanger, indoor heat exchanger, compressor, throttle part and control module,
The cross valve includes exhaust end, suction end, condenser end and evaporator end, the row of wherein described exhaust end and the compressor
Gas port is connected, and the suction end is connected with the air entry of the compressor；One end of the outdoor heat exchanger and the restriction
Part is connected, and the other end is connected with the condenser end；The indoor heat exchanger includes two groups of heat exchanging pipes, wherein every group heat exchanger tube
Road includes at least one heat exchange stream；
The defrosting control method of the air-conditioning system is comprised the following steps：
Step S10, when defrosting instruction is detected, the control module controls to exchange heat in a heat exchanging pipe one end of stream
With the evaporator end, the other end is connected with the throttle part, so that heat exchange stream enters heating mode；And control another changing
In pipe line, one end of heat exchange stream is connected with the exhaust end, and the other end is connected with the suction end, so that heat exchange stream enters
Enter defrosting mode；
Step S20, after preset time, the heat exchange stream of control module control heating mode switches to defrosting mould
Formula, the heat exchange stream for controlling defrosting mode switch to heating mode.
Specifically, above-mentioned defrosting instruction can be actively entered operational order generation by user by remote control, it is also possible to by sky
According to situation about running during heating operation, triggering automatically is produced adjusting system.Above-mentioned heat exchange stream is by indoor heat exchanger
Set of heat exchange tubes into the way of the heat exchange stream can be configured according to actual needs, and here is not further limited.For example
Above-mentioned indoor heat exchanger is dual-row heat exchanger, and including interior row's heat exchanger and outer row's heat exchanger, the heat exchange stream is included by interior row
First heat exchange stream of heat exchanger composition and the second heat exchange stream being made up of outer row's heat exchanger.If above-mentioned indoor heat exchanger is single
Row heat exchanger, then can by the top half set of heat exchange tubes of heat exchanger into first heat exchange stream, by the latter half set of heat exchange tubes into
Second heat exchange stream.
In air-conditioning system heating operation, control module controls one end of all heat exchange streams and the evaporimeter first
End, the other end are connected with the throttle part, so that all heat exchange streams are in heating mode, it is achieved that air-conditioning system
Heating operation.When defrosting instruction is detected, heat exchange stream in a heat exchanging pipe is kept heating mode operation by control module；Control
The one end for making the stream that exchanges heat in another heat exchanging pipe is connected with the exhaust end, and the other end is connected with the suction end, so that
In another heat exchanging pipe, heat exchange stream is converted to defrosting mode from heating mode, exchanges heat stream in defrost mode, from compressor
Exchanged heat in the heat exchange stream that the part high temperature refrigerant that exhaust outlet flows out will be flowed directly under defrosting mode, and through heat exchange
Directly flow back in compressor afterwards, so as to realize the defrosting function of heat exchange stream.It is understood that preferably defrosting to reach
Effect, the one end for the stream that exchanges heat in a heat exchanging pipe is controlled and the evaporator end, the other end are connected with the throttle part；
And control in another heat exchanging pipe exchange heat stream one end connect with the exhaust end, after the other end is connected with the suction end,
Through preset time, the heat exchange stream for controlling heating mode is switched to defrosting mode by control module, controls changing for defrosting mode
Hot flowpath switches to heating mode；And after preset time, exit defrosting mode.So as to ensure that each heat exchange stream is carried out
Defrosting.
The embodiment of the present invention controls heat exchange stream in a heat exchanging pipe by arranging control module when defrosting instruction is detected
The one end on road and the evaporator end, the other end are connected with the throttle part；And control the stream that exchanges heat in another heat exchanging pipe
One end connect with the exhaust end, the other end is connected with the suction end；It is achieved thereby that during heating operation, four need not be started
Port valve carries out commutation defrosting.Therefore the noise of air-conditioning system operation is reduced, the service life of cross valve is extended；Additionally due to
During defrosting at least one heat exchange stream in heating mode operation, so as to reach the effect for persistently heating, prevent due to
Defrosting process causes indoor temperature to decline, and causes environmental amenity degree relatively low.
Further, based on above-described embodiment, in the present embodiment, above-mentioned control module includes that one-to-one corresponding is arranged at and respectively changes
The first switch unit of hot flowpath one end, one-to-one corresponding are arranged at the second switch unit of each heat exchange stream other end, are located at institute
State the first current divider on the pipeline between exhaust end and the exhaust outlet, be located between the suction end and the air entry
The second current divider on pipeline and the control circuit for controlling first switch unit and second switch cell operation state,
Wherein described first switch unit includes that first switch valve and second switch valve, the first switch valve are located at the heat exchange stream
On the pipeline between the evaporator end, the second switch valve is between the heat exchange stream and first current divider
Pipeline on；The second switch unit includes that the 3rd switch valve and the 4th switch valve, the 3rd switch valve are changed located at described
On pipeline between hot flowpath and the throttle part, the 4th switch valve is located at the heat exchange stream and the described second shunting
On pipeline between device；
Step S10 includes：When defrosting control instruction is detected, the control circuit controls to change in a heat exchanging pipe
The corresponding first switch valve of hot flowpath and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve, so that heat exchange
Stream enters heating mode, and controls the corresponding first switch valve of heat exchange stream and the closing of the 3rd switch valve in another heat exchanging pipe
And second switch valve and the 4th switch valve are opened, so that heat exchange stream enters defrosting mode.
Also include before above-mentioned steps S10：Control first switch valve and the 3rd switch valve open and second switch valve and
4th switch valve cuts out.
In the present embodiment, by taking above-mentioned dual-row heat exchanger as an example, it is explained in detail.Above-mentioned each heat exchanging pipe is changed by one
Hot flowpath is constituted, and wherein heat exchange stream includes being exchanged heat by interior row's heat exchanger is constituted first and stream and is made up of outer row's heat exchanger
Second heat exchange stream.When detecting heating operation and instructing, control all of first switch valve and the 3rd switch valve open and
Second switch valve and the 4th switch valve are closed so that the first heat exchange stream and the second heat exchange stream enter heating mode；Work as detecting
During to defrosting control instruction, the corresponding first switch valve of control the first heat exchange stream and the 3rd switch valve are opened and second switch
Valve and the 4th switch valve are closed, so that the first heat exchange stream keeps heating mode；Simultaneously control second exchanges heat stream corresponding the
One switch valve and the 3rd switch valve are closed and second switch valve and the 4th switch valve opening, so that the second heat exchange stream is entered and removed
White pattern, so that realize that the second heat exchange is defrosted.So as to realize that the first heat exchange is defrosted after preset time,
Control the corresponding first switch valve of the first heat exchange stream and the closing of the 3rd switch valve and second switch valve and the 4th switch valve is beaten
Open, so that the first heat exchange stream switches to defrosting mode, so as to realize that the first heat exchange is defrosted；Control simultaneously second exchanges heat
The corresponding first switch valve of stream and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve, so that second changes
Hot flowpath switches to heating mode.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (5)
1. a kind of air-conditioning system, it is characterised in that including cross valve, outdoor heat exchanger, indoor heat exchanger, compressor, restriction
Part and control module, the cross valve include exhaust end, suction end, condenser end and evaporator end, wherein described exhaust end with
The exhaust outlet connection of the compressor, the suction end are connected with the air entry of the compressor；The one of the outdoor heat exchanger
End is connected with the throttle part, and the other end is connected with the condenser end；The indoor heat exchanger includes two groups of heat exchanging pipes,
Wherein every group heat exchanging pipe includes at least one heat exchange stream；When the control module is used for detecting defrosting instruction, control one
One end of heat exchange stream and the evaporator end in heat exchanging pipe, the other end are connected with the throttle part；And control another changing
In pipe line, one end of heat exchange stream is connected with the exhaust end, and the other end is connected with the suction end；
Wherein, the control module includes corresponding the first switch unit, the one-to-one corresponding that are arranged at each heat exchange stream one end
Be arranged at the second switch unit of each heat exchange stream other end, on pipeline between the exhaust end and the exhaust outlet
First current divider, the second current divider on pipeline between the suction end and the air entry and for control the
One switch element and the control circuit of second switch cell operation state, wherein described first switch unit include first switch valve
With second switch valve, on pipeline of the first switch valve between each heat exchange stream and the evaporator end, described second
On pipeline of the switch valve between each heat exchange stream and first current divider；The second switch unit includes the 3rd switch
Valve and the 4th switch valve, on pipeline of the 3rd switch valve between each heat exchange stream and the throttle part, described the
On pipeline of four switch valves between each heat exchange stream and second current divider；The control circuit respectively with each switch valve
Electrical connection；
Wherein, the control circuit is used for when heating operation instruction is detected, and control first switch valve and the 3rd switch valve are beaten
Open and second switch valve and the closing of the 4th switch valve；When defrosting control instruction is detected, exchange heat in one heat exchanging pipe of control
The corresponding first switch valve of stream and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve, so that heat exchange stream
Road enters heating mode, and control in another heat exchanging pipe the corresponding first switch valve of heat exchange stream and the 3rd switch valve close with
And second switch valve and the 4th switch valve are opened, so that heat exchange stream enters defrosting mode；After preset time, control is heated
The heat exchange stream of pattern switches to defrosting mode, and the heat exchange stream for controlling defrosting mode switches to heating mode.
2. air-conditioning system as claimed in claim 1, it is characterised in that the first switch valve, second switch valve, the 3rd switch
Valve and the 4th switch valve are magnetic valve.
3. air-conditioning system as claimed in claim 1, it is characterised in that when the quantity of the heat exchange stream in each heat exchanging pipe equal
For one when, first current divider and the second current divider are three-way pipe.
4. air-conditioning system as claimed any one in claims 1 to 3, it is characterised in that the indoor heat exchanger includes interior row
Heat exchanger and outer row's heat exchanger, the heat exchange stream include the first heat exchange stream being made up of interior row's heat exchanger and are exchanged heat by outer row
Second heat exchange stream of device composition.
5. a kind of defrosting control method of air-conditioning system, it is characterised in that the air-conditioning system includes cross valve, outdoor heat exchange
Device, indoor heat exchanger, compressor, throttle part and control module, the cross valve include exhaust end, suction end, condenser end
And evaporator end, wherein described exhaust end connected with the exhaust outlet of the compressor, the suction of the suction end and the compressor
Gas port is connected；One end of the outdoor heat exchanger is connected with the throttle part, and the other end is connected with the condenser end；Described
Indoor heat exchanger includes that two groups of heat exchanging pipes, wherein every group heat exchanging pipe include at least one heat exchange stream；
The defrosting control method of the air-conditioning system is comprised the following steps：
A, when defrosting instruction is detected, the control module control to exchange heat in a heat exchanging pipe stream one end and the evaporation
Device end, the other end are connected with the throttle part, so that heat exchange stream enters heating mode；And control to change in another heat exchanging pipe
One end of hot flowpath is connected with the exhaust end, and the other end is connected with the suction end, so that heat exchange stream enters defrosting mode；
B, after preset time, the heat exchange stream of control module control heating mode switches to defrosting mode, and control is removed
The heat exchange stream of white pattern switches to heating mode；
Wherein, the control module includes corresponding the first switch unit, the one-to-one corresponding that are arranged at each heat exchange stream one end
Be arranged at the second switch unit of each heat exchange stream other end, on pipeline between the exhaust end and the exhaust outlet
First current divider, the second current divider on pipeline between the suction end and the air entry and for control the
One switch element and the control circuit of second switch cell operation state, wherein described first switch unit include first switch valve
With second switch valve, on pipeline of the first switch valve between each heat exchange stream and the evaporator end, described second
On pipeline of the switch valve between each heat exchange stream and first current divider；The second switch unit includes the 3rd switch
Valve and the 4th switch valve, on pipeline of the 3rd switch valve between each heat exchange stream and the throttle part, described the
On pipeline of four switch valves between each heat exchange stream and second current divider；
Then step A includes：When defrosting control instruction is detected, the control circuit controls heat exchange stream in a heat exchanging pipe
The corresponding first switch valve in road and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve, so that heat exchange stream
Enter heating mode, and control in another heat exchanging pipe the corresponding first switch valve of heat exchange stream and the 3rd switch valve close and
Second switch valve and the 4th switch valve are opened, so that heat exchange stream enters defrosting mode；
Wherein, also include before step A：
Control first switch valve and the 3rd switch valve are opened and second switch valve and the closing of the 4th switch valve.
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| CN105157117B (en) * | 2015-10-20 | 2018-10-26 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN106091265B (en) * | 2016-06-17 | 2018-11-27 | 广东美的制冷设备有限公司 | The control method of air conditioner |
| CN114061055B (en) * | 2020-07-28 | 2023-03-31 | 广东美的制冷设备有限公司 | Air conditioner, control method, air conditioner control device and readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320172A (en) * | 1995-05-25 | 1996-12-03 | Sanyo Electric Co Ltd | Air conditioner |
| JP2001201217A (en) * | 2000-01-20 | 2001-07-27 | Fujitsu General Ltd | Air conditioner |
| CN201463433U (en) * | 2009-06-12 | 2010-05-12 | 深圳市艾斯兰德冷机制造有限公司 | Hot air defroster for multi-set parallel evaporator refrigeration system |
| EP2341299A2 (en) * | 2003-01-13 | 2011-07-06 | LG Electronics Inc. | Multi-type air conditioner with defrosting device |
| CN102635969A (en) * | 2012-04-11 | 2012-08-15 | 广东美的制冷设备有限公司 | Air conditioner |
| CN102721149A (en) * | 2012-05-08 | 2012-10-10 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
-
2014
- 2014-09-03 CN CN201410445316.1A patent/CN104214986B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320172A (en) * | 1995-05-25 | 1996-12-03 | Sanyo Electric Co Ltd | Air conditioner |
| JP2001201217A (en) * | 2000-01-20 | 2001-07-27 | Fujitsu General Ltd | Air conditioner |
| EP2341299A2 (en) * | 2003-01-13 | 2011-07-06 | LG Electronics Inc. | Multi-type air conditioner with defrosting device |
| CN201463433U (en) * | 2009-06-12 | 2010-05-12 | 深圳市艾斯兰德冷机制造有限公司 | Hot air defroster for multi-set parallel evaporator refrigeration system |
| CN102635969A (en) * | 2012-04-11 | 2012-08-15 | 广东美的制冷设备有限公司 | Air conditioner |
| CN102721149A (en) * | 2012-05-08 | 2012-10-10 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
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