CN105571082B - Multi-line system and its mode switch control method - Google Patents

Multi-line system and its mode switch control method Download PDF

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Publication number
CN105571082B
CN105571082B CN201610097410.1A CN201610097410A CN105571082B CN 105571082 B CN105571082 B CN 105571082B CN 201610097410 A CN201610097410 A CN 201610097410A CN 105571082 B CN105571082 B CN 105571082B
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indoor unit
pattern switching
switching
control valve
refrigeration
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CN105571082A (en
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范波
杨国忠
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a kind of multi-line system and its mode switch control methods, the described method comprises the following steps:When any one indoor unit in multiple indoor units receives pattern switching instruction, which, which instructs pattern switching and receive at the time of pattern switching instructs, is sent to part flow arrangement;Part flow arrangement instructs corresponding switching type to classify the N number of indoor unit for receiving pattern switching instruction in indoor units multiple in preset time according to pattern switching;And part flow arrangement received according to indoor unit each in classification results and N number of indoor unit pattern switching instruction at the time of control it is corresponding heating control valve and refrigeration control valve so that N number of indoor unit successively carry out pattern switching.This method can control indoor unit successively carries out pattern switching according to the switching type of indoor unit and at the time of receive pattern switching instruction, and effectively reducing switching type difference influences caused by system stability and the phenomenon that switching time distribution unevenness.

Description

Multi-line system and its mode switch control method
Technical field
The present invention relates to air-conditioning technical field, the mode switch control method and one of more particularly to a kind of multi-line system Kind multi-line system.
Background technology
For multi-line system, its operation characteristic is can also to meet user while user's refrigeration demand is met Heating needs, therefore in its operational process, there will be indoor unit operational mode by refrigeration mode be switched to heating mode or The situation of refrigeration mode is switched to by heating mode.
In general, when multiple indoor unit emergence patterns switch, different indoor units can refer to according to the pattern switching received It is responded at the time of order, this, which there is, the feelings that different indoor unit operational modes is switched repeatedly occurs in the very short time Condition reduces the stability of system.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention One purpose is to propose a kind of mode switch control method of multi-line system, this method according to the switching type of indoor unit and Control indoor unit successively carries out pattern switching at the time of receiving pattern switching instruction, effectively reduces switching type difference to being Influence caused by stability of uniting improves the stability of system.
It is another object of the present invention to propose a kind of multi-line system.
To achieve the above object, one aspect of the present invention embodiment proposes a kind of pattern switching controlling party of multi-line system Method, the multi-line system include outdoor unit, multiple indoor units and part flow arrangement, and the part flow arrangement includes and the multiple room Each indoor unit is corresponding in interior machine heats control valve and refrigeration control valve, the described method comprises the following steps:The multiple room When any one indoor unit in interior machine receives pattern switching instruction, which instructs the pattern switching and receives The part flow arrangement is sent at the time of the pattern switching instruction;The part flow arrangement is instructed according to the pattern switching and is corresponded to Switching type to received in indoor unit the multiple in preset time pattern switching instruction N number of indoor unit classify, Wherein, N is positive integer;And the part flow arrangement is received according to indoor unit each in classification results and N number of indoor unit Pattern switching instruction at the time of control corresponding heating control valve and refrigeration control valve so that the N number of indoor unit successively carries out Pattern switching.
The mode switch control method of multi-line system according to embodiments of the present invention, when any one in multiple indoor units When a indoor unit receives pattern switching instruction, at the time of which instructs and receives pattern switching instruction by pattern switching Part flow arrangement is sent to, part flow arrangement instructs corresponding switching type in indoor units multiple in preset time according to pattern switching The N number of indoor unit for receiving pattern switching instruction is classified, and connect according to indoor unit each in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled so that N number of indoor unit successively carries out at the time of the pattern switching instruction received Pattern switching influences caused by system stability so as to effectively reduce switching type difference, ensure that the stability of system, Improve the quality and user satisfaction of system.
According to one embodiment of present invention, the pattern switching instructs corresponding switching type to include refrigeration mode to system Heat pattern switches and heating mode switches to refrigeration mode, wherein, the part flow arrangement is instructed according to the pattern switching and is corresponded to Switching type to received in indoor unit the multiple in preset time pattern switching instruction N number of indoor unit classify, Including:What if the pattern switching corresponding switching type of instruction and first indoor unit that i-th of indoor unit receives received Pattern switching instructs corresponding switching type identical, then i-th of indoor unit is denoted as A class indoor units, wherein, 1 < i≤N; If the pattern switching that i-th of indoor unit receives instructs the mould that corresponding switching type and first indoor unit receive The corresponding switching type of formula switching command is different, then i-th of indoor unit is denoted as B class indoor units.
According to one embodiment of present invention, the part flow arrangement is according to each in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled at the time of the pattern switching instruction that indoor unit receives so that N number of room Interior machine successively carries out pattern switching, including:The mould that the part flow arrangement is received according to indoor unit each in the A classes indoor unit The A classes indoor unit is ranked up at the time of formula switching command to obtain the first ranking results;The part flow arrangement is according to institute The B classes indoor unit is ranked up to obtain at the time of stating the pattern switching instruction that each indoor unit receives in B class indoor units Obtain the second ranking results;And the part flow arrangement is first controlled in the A classes indoor unit each according to first ranking results The corresponding heating control valve of indoor unit and refrigeration control valve are so that A classes indoor unit sequence carries out pattern switching, and according to institute State the second ranking results control the corresponding heating control valve of each indoor unit and refrigeration control valve in the B classes indoor unit again so that The B classes indoor unit sequence carries out pattern switching.
According to one embodiment of present invention, when the pattern that any one indoor unit in the multiple indoor unit receives The corresponding switching type of switching command for refrigeration mode to heating mode switch when, the part flow arrangement first controls the indoor unit pair The refrigeration control valve answered is closed, then the corresponding heating control valve of the indoor unit is controlled to open.
According to another embodiment of the invention, when the mould that any one indoor unit in the multiple indoor unit receives The corresponding switching type of formula switching command for heating mode to refrigeration mode switch when, the part flow arrangement first controls the indoor unit Corresponding heating control valve is closed, then the corresponding refrigeration control valve of the indoor unit is controlled to open.
To achieve the above object, another aspect of the present invention embodiment proposes a kind of multi-line system, including:Outdoor unit; Multiple indoor units;Part flow arrangement, the part flow arrangement include heating corresponding with indoor unit each in the multiple indoor unit and control Valve and refrigeration control valve processed, wherein, it, should when any one indoor unit in the multiple indoor unit receives pattern switching instruction The pattern switching is instructed and received at the time of the pattern switching instructs by indoor unit is sent to the part flow arrangement;It is described Part flow arrangement further includes:Control module, the control module are used to instruct corresponding switching type pair according to the pattern switching The N number of indoor unit for receiving pattern switching instruction in preset time in the multiple indoor unit is classified, and is tied according to classification Controlled at the time of the instruction of each indoor unit receives in fruit and N number of indoor unit pattern switching corresponding heating control valve and Refrigeration control valve so that the N number of indoor unit successively carries out pattern switching, wherein, N is positive integer.
Multi-line system according to embodiments of the present invention, when any one indoor unit in multiple indoor units receives pattern During switching command, which, which instructs pattern switching and receive at the time of pattern switching instructs, is sent to part flow arrangement, point The control module flowed in device instructs corresponding switching type to being received in indoor units multiple in preset time according to pattern switching The N number of indoor unit instructed to pattern switching is classified, and received according to indoor unit each in classification results and N number of indoor unit Pattern switching instruction at the time of control it is corresponding heating control valve and refrigeration control valve so that N number of indoor unit priority carry out pattern Switching, influences caused by system stability so as to effectively reduce switching type difference, ensure that the stability of system, improves The quality and user satisfaction of system.
According to one embodiment of present invention, the pattern switching instructs corresponding switching type to include refrigeration mode to system Heat pattern switches and heating mode switches to refrigeration mode, and the control module is cut according to pattern switching instruction is corresponding Change type to received in indoor unit the multiple in preset time pattern switching instruction N number of indoor unit classify when, In, when pattern switching that i-th of indoor unit receives instructs the pattern that corresponding switching type and first indoor unit receive When the corresponding switching type of switching command is identical, i-th of indoor unit is denoted as A class indoor units by the control module, wherein, 1 < i≤N;When the pattern switching that i-th of indoor unit receives instructs corresponding switching type and first indoor unit to receive When the pattern switching arrived instructs corresponding switching type difference, i-th of indoor unit is denoted as in B classes room by the control module Machine.
According to one embodiment of present invention, the control module is according to every in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled at the time of the pattern switching instruction that a indoor unit receives so that described N number of When indoor unit successively carries out pattern switching, wherein, the control module is received according to indoor unit each in the A classes indoor unit Pattern switching instruction at the time of the A classes indoor unit is ranked up with obtain first sequence as a result, and according to the B classes room The B classes indoor unit is ranked up to obtain second row at the time of the pattern switching instruction that each indoor unit receives in interior machine Sequence according to first ranking results as a result, and first control corresponding heat of each indoor unit in the A classes indoor unit to control Valve and refrigeration control valve are so that A classes indoor unit sequence carries out pattern switching, and control again according to second ranking results The corresponding heating control valve of each indoor unit and refrigeration control valve in the B classes indoor unit so that B classes indoor unit sequence into Row pattern switching.
According to one embodiment of present invention, when the pattern that any one indoor unit in the multiple indoor unit receives The corresponding switching type of switching command for refrigeration mode to heating mode switch when, the control module first controls the indoor unit pair The refrigeration control valve answered is closed, then the corresponding heating control valve of the indoor unit is controlled to open.
According to another embodiment of the invention, when the mould that any one indoor unit in the multiple indoor unit receives The corresponding switching type of formula switching command for heating mode to refrigeration mode switch when, the control module first controls the indoor unit Corresponding heating control valve is closed, then the corresponding refrigeration control valve of the indoor unit is controlled to open.
Description of the drawings
Fig. 1 is the flow chart of the mode switch control method of multi-line system according to embodiments of the present invention.
Fig. 2 is the structure diagram of multi-line system according to an embodiment of the invention.
Fig. 3 is the flow chart of the mode switch control method of multi-line system according to an embodiment of the invention.
Reference numeral:First indoor unit 11, the second indoor unit 12, third indoor unit 13, machine 14, refrigeration control in fourth ventricle Valve SV1, SV2, SV3 and SV4, heating control valve SV1B, SV2B, SV3B and SV4B.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the mode switch control method of the multi-line system proposed according to embodiments of the present invention described And multi-line system.
Fig. 1 is the flow chart of the mode switch control method of multi-line system according to embodiments of the present invention.
In an embodiment of the present invention, multi-line system includes outdoor unit, multiple indoor units and part flow arrangement, part flow arrangement Including heating control valve corresponding with indoor unit each in multiple indoor units and refrigeration control valve.
Specifically, as shown in Fig. 2, multiple indoor units can include the first indoor unit, the second indoor unit ....First is indoor The corresponding refrigeration control valve of machine is SV1 and heating control valve is SV1B, and the corresponding refrigeration control valve of the second indoor unit is SV2 and system Heat control valve (HCV) is SV2B ....
As shown in Figure 1, the mode switch control method of the multi-line system includes the following steps:
S1, when any one indoor unit in multiple indoor units receives pattern switching instruction, which cuts pattern It changes instruction and is sent to part flow arrangement at the time of receiving pattern switching instruction.
S2, part flow arrangement instruct corresponding switching type to being received in indoor units multiple in preset time according to pattern switching The N number of indoor unit instructed to pattern switching is classified, wherein, N is positive integer, and preset time can be carried out according to actual conditions Calibration.
According to one embodiment of present invention, pattern switching instructs corresponding switching type to include refrigeration mode to heating mould Formula switches and heating mode switches to refrigeration mode, wherein, part flow arrangement instructs corresponding switching type pair according to pattern switching The N number of indoor unit for receiving pattern switching instruction in preset time in multiple indoor units is classified, including:If i-th of Room The pattern switching that interior machine receives instructs corresponding switching type corresponding with the pattern switching instruction that first indoor unit receives Switching type it is identical, then i-th of indoor unit is denoted as A class indoor units, wherein, 1 < i≤N;If i-th of indoor unit receives To pattern switching instruct corresponding switching type switching class corresponding with the pattern switching instruction that first indoor unit receives Type is different, then i-th of indoor unit is denoted as B class indoor units.
That is, the indoor unit that setting is initially received pattern switching instruction is first indoor unit, which can To be any one indoor unit in multiple indoor units.Also, if the pattern switching instruction that the indoor unit receives is corresponding Switching type switches for refrigeration mode to heating mode, then in preset time, as long as the pattern switching that indoor unit receives refers to Corresponding switching type is enabled to switch for refrigeration mode to heating mode, then the indoor unit is denoted as A class indoor units, remaining is received The indoor unit of pattern switching instruction is denoted as B class indoor units;And if the pattern switching that the indoor unit receives instructs corresponding cut It changes type for heating mode to refrigeration mode to switch, then in preset time, as long as the pattern switching instruction that indoor unit receives Corresponding switching type switches for heating mode to refrigeration mode, then the indoor unit is denoted as A class indoor units, remaining receives mould The indoor unit of formula switching command is denoted as B class indoor units.
S3, part flow arrangement are instructed according to the pattern switching that indoor unit each in classification results and N number of indoor unit receives The corresponding heating control valve of moment control and refrigeration control valve are so that N number of indoor unit successively carries out pattern switching.
According to one embodiment of present invention, part flow arrangement connects according to indoor unit each in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled so that N number of indoor unit successively carries out at the time of the pattern switching instruction received Pattern switching, including:To A at the time of the pattern switching instruction that part flow arrangement is received according to indoor unit each in A class indoor units Class indoor unit is ranked up to obtain the first ranking results;Part flow arrangement is received according to indoor unit each in B class indoor units Pattern switching is ranked up B class indoor units to obtain the second ranking results at the time of instruction;And part flow arrangement is according to first Ranking results first control in A class indoor units the corresponding heating control valve of each indoor unit and refrigeration control valve so that A class indoor units Sequence carries out pattern switching, and corresponding heat of each indoor unit in B class indoor units is controlled to control again according to the second ranking results Valve and refrigeration control valve are so that B classes indoor unit sequence carries out pattern switching.
Specifically, when any one indoor unit in multiple indoor units receives pattern switching instruction, the indoor unit Part flow arrangement is sent at the time of instructing and receive pattern switching instruction by pattern switching.Part flow arrangement will be initially received mould The indoor unit of formula switching command is set as first indoor unit (1#), while at the time of record receives pattern switching instruction (t1), it and by the indoor unit that pattern switching instruction is received in preset time is denoted as indoor unit (2# ..., N#) respectively, remembers simultaneously At the time of record receives pattern switching instruction (t2 ..., tN).Then, part flow arrangement is instructed according to pattern switching successively to interior The switching type of machine (2# ..., N#) is judged.If the switching type phase of the switching type of indoor unit and first indoor unit Together, then A class indoor units are denoted as, and pattern switching preferentially is carried out to A classes indoor unit;If the switching type of indoor unit and The switching type of one indoor unit is different, then is denoted as B class indoor units, and carrying out pattern switching to all A classes indoor units After the completion, pattern switching is carried out to B classes indoor unit.Wherein, when carrying out pattern switching to A classes indoor unit, first according to A classes room A class indoor units are ranked up at the time of the pattern switching instruction that each indoor unit receives in interior machine to obtain the first sequence knot Then fruit carries out pattern switching according to the first ranking results to A classes indoor unit, specifically can be according to ranking results every certain Time carries out pattern switching to indoor unit sequence, to reduce the phenomenon that mode switch time distribution is uneven, effectively prevents interior Machine concentrates the problem of switching in a short time, improves the stability of system;When carrying out pattern switching to B classes indoor unit, together Sample, the pattern switching first received according to indoor unit each in B class indoor units is ranked up B class indoor units at the time of instruction To obtain the second sequence as a result, then carrying out pattern switching to B classes indoor unit according to the second ranking results.
Due in mode handover procedure, being classified, and machine switching type in different chamber according to classification results to room Interior machine carries out pattern switching, and such as first A classes indoor unit is carried out to carry out pattern switching to B classes indoor unit again after the completion of pattern switching, Influence of the pattern switching type to system run all right thus is effectively reduced, meanwhile, it is instructed according to pattern switching is received At the time of A classes indoor unit and B class indoor units are ranked up, and according to ranking results sequence carry out pattern switching, increase mould The order of formula switching effectively prevents the phenomenon that switching time distribution is uneven.
Further, a specific example according to the present invention, as shown in figure 3, the pattern switching control of multi-line system Method may comprise steps of:
The indoor unit for being initially received pattern switching instruction is set as first indoor unit 1#, and record the room by S101 T1 at the time of interior machine receives pattern switching instruction.
S102 in preset time K seconds, receives the indoor unit (2# ... N#) of pattern switching instruction, and record receives mould At the time of formula switching command (t2 ..., tN).
S103, the 2nd indoor unit to n-th indoor unit of traversal receives at the time of pattern switching instructs and pattern switching Instruction.
S104 judges that the pattern switching of i-th of indoor unit instructs corresponding switching type.
S105, judge i-th indoor unit pattern switching instruct corresponding switching type whether with first indoor unit Switching type is identical.If so, perform step S106;If not, perform step S107.
S106 records corresponding number to A class indoor units, i.e., i-th of indoor unit is denoted as A class indoor units.
S107 records corresponding number to B class indoor units, i.e., i-th of indoor unit is denoted as B class indoor units.
S108, traversal terminate.
S109, judges whether indoor unit belongs to A class indoor units.If so, perform step S110;If not, perform step S112。
S110 is ranked up according at the time of receiving pattern switching instruction, and carries out pattern according to ranking results sequence Switching carries out pattern switching to A classes indoor unit sequence.
S111 judges whether that switching finishes, that is, judges whether A classes indoor unit switches and finish.If so, perform step S111;If not, return to step S110.
S112 is ranked up B class indoor units, and sequence carries out pattern switching.
S113, indoor unit pattern switching terminate.
In an embodiment of the present invention, when the pattern switching instruction that any one indoor unit in multiple indoor units receives Corresponding switching type for refrigeration mode to heating mode switch when, part flow arrangement first controls the corresponding refrigeration control of the indoor unit Valve is closed, then the corresponding heating control valve of the indoor unit is controlled to open;When any one indoor unit in multiple indoor units receives The pattern switching that arrives instruct corresponding switching type for heating mode to refrigeration mode switch when, part flow arrangement first controls the interior The corresponding heating control valve of machine is closed, then the corresponding refrigeration control valve of the indoor unit is controlled to open.
In conclusion the mode switch control method of multi-line system according to embodiments of the present invention, when multiple indoor units In any one indoor unit when receiving pattern switching instruction, which instructs pattern switching and receives pattern switching Part flow arrangement is sent at the time of instruction, part flow arrangement instructs corresponding switching type to more in preset time according to pattern switching N number of indoor unit that pattern switching instruction is received in a indoor unit is classified, and according to every in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled at the time of the pattern switching instruction that a indoor unit receives so that N number of interior Machine successively carries out pattern switching, influences so as to effectively reducing switching type difference caused by system stability and switches The phenomenon that time distribution is uneven, increases the order of pattern switching, ensure that the stability of system, improve the quality of system And user satisfaction.
Fig. 2 is the structure diagram of multi-line system according to an embodiment of the invention.
As shown in Fig. 2, the multi-line system includes outdoor unit (not specifically illustrated in figure), multiple indoor units and shunting dress It puts, wherein, part flow arrangement includes multiple heating control valves corresponding with indoor unit each in multiple indoor units and multiple refrigeration controls Valve processed.Specifically, as shown in Fig. 2, multiple indoor units can include the first indoor unit 11, the second indoor unit 12 ....First Room Interior 11 corresponding refrigeration control valve of machine is SV1 and heating control valve is SV1B, and 12 corresponding refrigeration control valve of the second indoor unit is SV2 and heating control valve are SV2B ....
When any one indoor unit in multiple indoor units receives pattern switching instruction, the indoor unit is by pattern switching Part flow arrangement is sent at the time of instructing and receive pattern switching instruction.Part flow arrangement further includes control module (not to be had in figure Body is shown), control module is used to instruct corresponding switching type to connecing in indoor units multiple in preset time according to pattern switching The N number of indoor unit for receiving pattern switching instruction is classified, and is received according to indoor unit each in classification results and N number of indoor unit To pattern switching instruction at the time of control it is corresponding heating control valve and refrigeration control valve so that N number of indoor unit successively carry out mould Formula switches, wherein, N is positive integer.
According to one embodiment of present invention, pattern switching instructs corresponding switching type to include refrigeration mode to heating mould Formula switches and heating mode switches to refrigeration mode, and control module is instructing corresponding switching type to default according to pattern switching N number of indoor unit of pattern switching instruction is received in time in multiple indoor units when being classified, wherein, when i-th of indoor unit The pattern switching received instructs corresponding switching type is corresponding with the pattern switching instruction that first indoor unit receives to cut Change type it is identical when, i-th of indoor unit is denoted as A class indoor units by control module, wherein, 1 < i≤N;When i-th of indoor unit connects The corresponding switching type of pattern switching instruction received and the corresponding switching of pattern switching instruction that first indoor unit receives During type difference, i-th of indoor unit is denoted as B class indoor units by control module.
That is, the indoor unit that control module setting is initially received pattern switching instruction is first indoor unit, it should Indoor unit can be any one indoor unit in multiple indoor units.Also, if control module judges that the indoor unit receives Pattern switching corresponding switching type is instructed to switch for refrigeration mode to heating mode, then in preset time, as long as indoor The pattern switching that machine receives instructs corresponding switching type to switch for refrigeration mode to heating mode, and control module is then by the room Interior machine is denoted as A class indoor units, remaining indoor unit for receiving pattern switching instruction is denoted as B class indoor units;And if control module Judge that the pattern switching that the indoor unit receives instructs corresponding switching type to switch for heating mode to refrigeration mode, then pre- If in the time, as long as the pattern switching that indoor unit receives instructs corresponding switching type to be cut for heating mode to refrigeration mode It changes, which is then denoted as A class indoor units by control module, remaining indoor unit for receiving pattern switching instruction is denoted as B classes room Interior machine.
According to one embodiment of present invention, control module is according to each indoor unit in classification results and N number of indoor unit Corresponding heating control valve and refrigeration control valve are controlled at the time of the pattern switching instruction received so that N number of indoor unit is first laggard During row pattern switching, wherein, at the time of control module is instructed according to the pattern switching that indoor unit each in A class indoor units receives A class indoor units are ranked up to obtain the first sequence as a result, and the pattern that receives according to indoor unit each in B class indoor units B class indoor units are ranked up at the time of switching command to obtain the second sequence as a result, and first being controlled according to the first ranking results Corresponding control valve and the refrigeration control valve of heating of each indoor unit is so that A class indoor unit sequence carry out patterns in A classes indoor unit processed Switching, and control in B class indoor units according to the second ranking results that each indoor unit is corresponding to heat control valve and refrigeration control again Valve is so that B classes indoor unit sequence carries out pattern switching.
Specifically, when any one indoor unit in multiple indoor units receives pattern switching instruction, the indoor unit Part flow arrangement is sent at the time of instructing and receive pattern switching instruction by pattern switching.The control module of part flow arrangement will be just The indoor unit for beginning to receive pattern switching instruction is set as first indoor unit (1#), while record receives pattern switching instruction At the time of (t1), and the indoor unit that pattern switching instruction is received in preset time is denoted as indoor unit (2# ..., N#) respectively, At the time of record receives pattern switching instruction simultaneously (t2 ..., tN).Then, control module instructs successively according to pattern switching The switching type of indoor unit (2# ..., N#) is judged.If the switching of the switching type of indoor unit and first indoor unit Type is identical, then control module is denoted as A class indoor units, and preferentially carries out pattern switching to A classes indoor unit;If indoor unit Switching type it is different from the switching type of first indoor unit, then control module is denoted as B class indoor units, and to all After the completion of A classes indoor unit carries out pattern switching, pattern switching is carried out to B classes indoor unit.Wherein, control module is in A classes room When machine carries out pattern switching, to A classes at the time of the pattern switching received first according to indoor unit each in A class indoor units instructs Indoor unit is ranked up to obtain the first sequence as a result, then carrying out pattern switching to A classes indoor unit according to the first ranking results, It specifically can be according to ranking results per pattern switching is carried out to indoor unit sequence at regular intervals, to reduce mode switch time The phenomenon that distribution is uneven;Control module to B classes indoor unit when carrying out pattern switching, likewise, first according to every in B class indoor units B class indoor units are ranked up at the time of the pattern switching instruction that a indoor unit receives to obtain the second sequence as a result, then Pattern switching is carried out to B classes indoor unit according to the second ranking results.
Due in mode handover procedure, being classified, and machine switching type in different chamber according to classification results to room Interior machine carries out pattern switching, and such as first A classes indoor unit is carried out to carry out pattern switching to B classes indoor unit again after the completion of pattern switching, Influence of the pattern switching type to system run all right thus is effectively reduced, meanwhile, it is instructed according to pattern switching is received At the time of A classes indoor unit and B class indoor units are ranked up, and according to ranking results sequence carry out pattern switching, increase mould The order of formula switching effectively prevents the phenomenon that switching time distribution is uneven.
In an embodiment of the present invention, when the pattern switching instruction that any one indoor unit in multiple indoor units receives Corresponding switching type for refrigeration mode to heating mode switch when, control module first controls the corresponding refrigeration control of the indoor unit Valve is closed, then the corresponding heating control valve of the indoor unit is controlled to open;When any one indoor unit in multiple indoor units receives The pattern switching that arrives instruct corresponding switching type for heating mode to refrigeration mode switch when, control module first controls the interior The corresponding heating control valve of machine is closed, then the corresponding refrigeration control valve of the indoor unit is controlled to open.
Multi-line system according to embodiments of the present invention, when any one indoor unit in multiple indoor units receives pattern During switching command, which, which instructs pattern switching and receive at the time of pattern switching instructs, is sent to part flow arrangement, point The control module flowed in device instructs corresponding switching type to being received in indoor units multiple in preset time according to pattern switching The N number of indoor unit instructed to pattern switching is classified, and received according to indoor unit each in classification results and N number of indoor unit Pattern switching instruction at the time of control it is corresponding heating control valve and refrigeration control valve so that N number of indoor unit priority carry out pattern Switching, influences so as to effectively reducing switching type difference caused by system stability and switching time distribution unevenness Phenomenon increases the order of pattern switching, ensure that the stability of system, improves the quality of system and user's satisfaction Degree.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral;Can be that machinery connects It connects or is electrically connected;It can be directly connected, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature right over second feature or oblique upper or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments " The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field Art personnel can tie the different embodiments or examples described in this specification and the feature of different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (10)

1. a kind of mode switch control method of multi-line system, which is characterized in that the multi-line system includes outdoor unit, more A indoor unit and part flow arrangement, the part flow arrangement include heating corresponding with indoor unit each in the multiple indoor unit and control Valve and refrigeration control valve, the described method comprises the following steps:
When any one indoor unit in the multiple indoor unit receives pattern switching instruction, which cuts the pattern It changes instruction and is sent to the part flow arrangement at the time of receiving the pattern switching instruction;
The part flow arrangement instructs corresponding switching type to indoor unit the multiple in preset time according to the pattern switching In receive pattern switching instruction N number of indoor unit classify, wherein, N is positive integer;And
The part flow arrangement is instructed according to the pattern switching that indoor unit each in classification results and N number of indoor unit receives The corresponding heating control valve of moment control and refrigeration control valve are so that N number of indoor unit successively carries out pattern switching.
2. the mode switch control method of multi-line system according to claim 1, which is characterized in that the pattern switching Corresponding switching type is instructed to include refrigeration mode to heating mode switching and heating mode to refrigeration mode to switch, wherein, institute It states part flow arrangement and corresponding switching type is instructed to being received in indoor unit the multiple in preset time according to the pattern switching The N number of indoor unit instructed to pattern switching is classified, including:
If the pattern switching that i-th of indoor unit receives instructs the mould that corresponding switching type and first indoor unit receive The corresponding switching type of formula switching command is identical, then i-th of indoor unit is denoted as A class indoor units, wherein, 1 < i≤N;
If the pattern switching that i-th of indoor unit receives instructs corresponding switching type to be received with first indoor unit Pattern switching instruct corresponding switching type different, then i-th of indoor unit is denoted as B class indoor units.
3. the mode switch control method of multi-line system according to claim 2, which is characterized in that the part flow arrangement Corresponding system is controlled at the time of the pattern switching instruction received according to indoor unit each in classification results and N number of indoor unit Heat control valve (HCV) and refrigeration control valve so that the N number of indoor unit successively carries out pattern switching, including:
To described at the time of the pattern switching instruction that the part flow arrangement is received according to indoor unit each in the A classes indoor unit A class indoor units are ranked up to obtain the first ranking results;
To described at the time of the pattern switching instruction that the part flow arrangement is received according to indoor unit each in the B classes indoor unit B class indoor units are ranked up to obtain the second ranking results;And
The part flow arrangement first controls each corresponding heating of indoor unit in the A classes indoor unit according to first ranking results Control valve and refrigeration control valve are so that A classes indoor unit sequence carries out pattern switching, and according to second ranking results again The corresponding heating control valve of each indoor unit and refrigeration control valve are controlled in the B classes indoor unit so that the B classes indoor unit is suitable Sequence carries out pattern switching.
4. the mode switch control method of multi-line system according to any one of claim 1-3, which is characterized in that when It is refrigeration mode that the pattern switching that any one indoor unit in the multiple indoor unit receives, which instructs corresponding switching type, When switching to heating mode, the part flow arrangement first controls the corresponding refrigeration control valve of the indoor unit to close, then control the interior The corresponding heating control valve of machine is opened.
5. the mode switch control method of multi-line system according to any one of claim 1-3, which is characterized in that when It is heating mode that the pattern switching that any one indoor unit in the multiple indoor unit receives, which instructs corresponding switching type, When switching to refrigeration mode, the part flow arrangement first controls the corresponding heating control valve of the indoor unit to close, then control the interior The corresponding refrigeration control valve of machine is opened.
6. a kind of multi-line system, which is characterized in that including:
Outdoor unit;
Multiple indoor units;
Part flow arrangement, the part flow arrangement include heating control valve corresponding with indoor unit each in the multiple indoor unit and system Subcooling control valve, wherein, when any one indoor unit in the multiple indoor unit receives pattern switching instruction, which will The pattern switching is sent to the part flow arrangement at the time of instructing and receive the pattern switching instruction;
The part flow arrangement further includes:
Control module, the control module are used to instruct corresponding switching type to institute in preset time according to the pattern switching State received in multiple indoor units pattern switching instruction N number of indoor unit classify, and according to classification results and N number of room Controlled at the time of the instruction of each indoor unit receives in interior machine pattern switching corresponding heating control valve and refrigeration control valve with N number of indoor unit is made successively to carry out pattern switching, wherein, N is positive integer.
7. multi-line system according to claim 6, which is characterized in that the pattern switching instructs corresponding switching type Switch including refrigeration mode to heating mode switching and heating mode to refrigeration mode, the control module is according to the pattern N number of interior that the corresponding switching type of switching command is instructed to receiving pattern switching in indoor unit the multiple in preset time When machine is classified, wherein,
When pattern switching that i-th of indoor unit receives instructs the pattern that corresponding switching type and first indoor unit receive When the corresponding switching type of switching command is identical, i-th of indoor unit is denoted as A class indoor units by the control module, wherein, 1 < i≤N;
It is received when the pattern switching corresponding switching type of instruction and first indoor unit that i-th of indoor unit receives When pattern switching instructs corresponding switching type difference, i-th of indoor unit is denoted as B class indoor units by the control module.
8. multi-line system according to claim 7, which is characterized in that the control module is according to classification results and institute Corresponding heating control valve and refrigeration is controlled to control at the time of stating the pattern switching instruction that each indoor unit receives in N number of indoor unit When valve processed is so that N number of indoor unit successively carries out pattern switching, wherein, the control module is according in the A classes indoor unit The A classes indoor unit is ranked up at the time of the pattern switching instruction that each indoor unit receives to obtain the first sequence knot Fruit, and at the time of the pattern switching received according to indoor unit each in the B classes indoor unit instructs to the B classes indoor unit into Row sequence is to obtain the second sequence as a result, and first controlling each room in the A classes indoor unit according to first ranking results Interior machine is corresponding to heat control valve and refrigeration control valve so that A classes indoor unit sequence carries out pattern switching, and according to described Second ranking results control in the B classes indoor unit the corresponding heating control valve of each indoor unit and refrigeration control valve so that institute again It states B classes indoor unit sequence and carries out pattern switching.
9. according to the multi-line system described in any one of claim 6-8, which is characterized in that when in the multiple indoor unit Pattern switching that any one indoor unit receives instruct corresponding switching type for refrigeration mode to heating mode switch when, institute Stating control module first controls the corresponding refrigeration control valve of the indoor unit to close, then the corresponding heating control valve of the indoor unit is controlled to open It opens.
10. according to the multi-line system described in any one of claim 6-8, which is characterized in that when in the multiple indoor unit The pattern switching that receives of any one indoor unit instruct corresponding switching type for heating mode to refrigeration mode switch when, The control module first controls the corresponding heating control valve of the indoor unit to close, then control the corresponding refrigeration control valve of the indoor unit It opens.
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