CN104061651B - Multi-gang air-conditioner, multi-connected machine defrosting control system and multi-connected machine defrosting control method - Google Patents
Multi-gang air-conditioner, multi-connected machine defrosting control system and multi-connected machine defrosting control method Download PDFInfo
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Abstract
The invention provides a kind of multi-connected machine defrosting control method, first determine whether whether indoor set is in open state, during start, judge whether indoor set performs very fast defrosting function, if it is open auxiliary electrical heating function, and control the work of indoor set blower fan；If not opening very fast defrosting function, process according to conventional defrost mode.Judge during shutdown whether indoor set opens the very fast defrosting function of execution, if it is open auxiliary electrical heating function, and control the work of indoor set blower fan, if it does not, process according to conventional defrost mode.By the above-mentioned control method to multi-connected machine, during air conditioning system heating operation, if off-premises station meets defrost condition, system enters very fast defrost operational mode, by opening electrical heating and blower fan, makes indoor persistently obtain heat, shorten the defrost time, it is ensured that user's thermal comfort is experienced.Present invention also offers a kind of multi-connected machine defrosting control system.Present invention also offers a kind of multi-gang air-conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, it relates to a kind of multi-gang air-conditioner, multi-connected machine defrosting control system and multi-connected machine defrosting control method.
Background technology
Multi-connected machine is connected, by one or more off-premises station and multiple stage indoor set, the cooling cycle system formed, pump type heat multi-connected machine is when worst cold case heats, the easy frosting of outdoor unit heat exchanger, heat exchange efficiency drastically declines and has a strong impact on heat transfer effect, for avoiding heating effect continuous decrease, now system can enter defrost pattern.During defrost, system makees refrigerating operaton, the frost layer of outdoor heat exchanger is melted by the heat that the high temperature and high pressure gas utilizing compressor to discharge discharges, refrigerant evaporation heat absorption in indoor set heat exchanger, for avoiding indoor set to blow a cold wind over, generally way is close chamber's inner blower, but uses this operation to have influence on the heat transfer effect of indoor heat exchanger so that the off-premises station defrost time will be longer.
At present, the defrost process of pump type heat multi-connected machine all can continue (4-10) minute, defrost process terminates rear system and is restored to heating mode, General System properly functioning also needs to (3-5) minute from starting to heat, namely in this (7-15) minute period, indoor does not has heating effect, room temperature meeting continuous decrease substantially, and the thermal comfort badly influencing user is experienced.
Therefore, how to shorten the multi-connected machine off-premises station defrost time, simultaneously improve multi-connected machine during defrost indoor heat effectiveness, be current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of multi-connected machine defrosting control method, to realize shortening the multi-connected machine off-premises station defrost time, improve simultaneously multi-connected machine during defrost indoor heat effectiveness；Present invention also offers a kind of multi-connected machine defrosting control system；Present invention also offers a kind of multi-gang air-conditioner.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of multi-connected machine defrosting control method, for the very fast defrosting control of multi-gang air-conditioner indoor set, including step:
1) judge whether described indoor set is in open state, if it is, enter step 2), if it does not, enter step 4)；
2) judge whether described indoor set performs very fast defrosting function, if it is, enter step 3), if it does not, process according to conventional defrost mode；
3) open indoor set auxiliary electrical heating function, control indoor set blower fan to first object rotating speed；
4) judge whether described indoor set performs very fast defrosting function, if it is, enter step 5), if it does not, process according to conventional defrost mode；
5) open indoor set auxiliary electrical heating function, control indoor set blower fan to the second rotating speed of target.
Preferably, in above-mentioned multi-connected machine defrosting control method, described open state includes that indoor set heats state, indoor set to preset temperature point stopped status or indoor set ventilation state.
Preferably, in above-mentioned multi-connected machine defrosting control method, described step 3) and described step 5) the most also include, the aerofoil of sweeping controlling the indoor set that aerofoil swept by band is opened to angle on target.
Preferably, in above-mentioned multi-connected machine defrosting control method, described first object rotating speed and described second rotating speed of target are the arbitrary rotating speed gear in the refrigeration mode of described indoor set, heating mode, dehumidification mode or air supply pattern.
Preferably, in above-mentioned multi-connected machine defrosting control method, described rotating speed gear includes high-grade rotating speed, middle-grade rotating speed, low-grade rotating speed or other rotating speed gears adjustable.
Preferably, in above-mentioned multi-connected machine defrosting control method, described angle on target be described in sweep aerofoil and be set to 0 degree, or described in sweep minimum angles or the maximum angle that aerofoil is opened.
Preferably, in above-mentioned multi-connected machine defrosting control method, described step 3) and described step 5) in each work opening sequence be adjustable pattern.
Preferably, in above-mentioned multi-connected machine defrosting control method, described multi-gang air-conditioner includes at least one off-premises station.
A kind of multi-connected machine defrosting control system, described multi-connected machine defrosting control system uses the multi-connected machine defrosting control method as described in claim 1-8 any one.
A kind of multi-gang air-conditioner, described multi-gang air-conditioner uses multi-connected machine defrosting control system as claimed in claim 9.
The multi-connected machine defrosting control method that the present invention provides, very fast defrosting control for multi-gang air-conditioner indoor set, it is controlled by the following method, first determine whether whether indoor set is in open state, if being in open state, it is judged that whether indoor set performs very fast defrosting function, if, in system control office, auxiliary electrical heating function opened by machine, and controls the work of indoor set blower fan, until fan starting is to first object rotating speed；If not opening very fast defrosting function, process according to conventional defrost mode.If indoor set is in off-mode, it is judged that whether indoor set opens the very fast defrosting function of execution, if, indoor set opens auxiliary electrical heating function, and controls the work of indoor set blower fan, until blower fan reaches the second rotating speed of target, if it does not, process according to conventional defrost mode.By the above-mentioned control method to multi-connected machine, during air conditioning system heating operation, if off-premises station meets defrost condition, system enters very fast defrost operational mode, indoor set obtains the defrost signal that off-premises station sends, and opens electrical heating and blower fan, obtains heat by indoor set heat exchanger, shorten the defrost time, it is ensured that user's thermal comfort is experienced.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the multi-connected machine defrosting control method that Fig. 1 provides for the present invention；
The flow chart of one detailed description of the invention of the multi-connected machine control method that Fig. 2 provides for the present invention.
Detailed description of the invention
The invention discloses a kind of multi-connected machine defrosting control method, shorten the multi-connected machine off-premises station defrost time, improve simultaneously multi-connected machine during defrost indoor heat effectiveness；Present invention also offers a kind of multi-connected machine defrosting control system；Present invention also offers a kind of multi-gang air-conditioner.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
As it is shown in figure 1, the flow chart of multi-connected machine defrosting control method that Fig. 1 provides for the present invention.
The invention provides a kind of multi-connected machine defrosting control method, very fast defrosting control for multi-gang air-conditioner indoor set, it is controlled by the following method, first determine whether whether indoor set is in open state, if being in open state, it is judged that whether indoor set performs very fast defrosting function, if, in system control office, auxiliary electrical heating function opened by machine, and controls the work of indoor set blower fan, until fan starting is to first object rotating speed；If not opening very fast defrosting function, process according to conventional defrost mode.If indoor set is in off-mode, it is judged that whether indoor set opens the very fast defrosting function of execution, if, indoor set opens auxiliary electrical heating function, and controls the work of indoor set blower fan, until blower fan reaches the second rotating speed of target, if it does not, process according to conventional defrost mode.By the above-mentioned control method to multi-connected machine, during air conditioning system heating operation, if off-premises station meets defrost condition, system enters very fast defrost operational mode, and indoor set obtains the defrost signal that off-premises station sends, and opens electrical heating and blower fan.
Defrost mode conventional in prior art is, when multiple on-line system by heat proceed to defrost pattern time, the blower fan of indoor set stops operating, and heating the electrical heating that has been switched on of period to close, therefore temperature indoor during causing defrost can be gradually lowered, and affects comfortableness.The multi-connected machine defrosting control method that the present invention provides, by the control to very fast defrost pattern, still heat can be obtained by indoor set heat exchanger during defrost, this heat is for defrost and provides the heat during indoor defrost, while shortening the defrost time, what offer indoor were certain heats heat, thus ensure that user's thermal comfort is experienced.
In the present invention one specific embodiment; multiple on-line system is during heating operation; the duty of each indoor set may be different; indoor set heats state, indoor set to preset temperature point stopped status or indoor set ventilation state all process according to open state; if off-premises station meets defrost condition; whether be very fast defrost pattern by judging the indoor set of open state and off-mode so that indoor set enters predetermined duty, thus between ensureing systematization frost season indoor heat comfortableness.
In the present invention one specific embodiment, step 3) and step 5) in the most also include, the aerofoil of sweeping controlling the indoor set that aerofoil swept by band is opened to angle on target.The pattern sweeping aerofoil of existing indoor set is varied, for the indoor set without sweeping aerofoil, without relating to the work sweeping aerofoil during very fast defrost, and for having the indoor set sweeping aerofoil, needing to be simultaneously introduced the control to sweeping aerofoil blowing wind direction, system controls to sweep aerofoil and regulates to angle on target during defrost.During defrost, indoor set heating effect reduces, the present invention ensures the heating effect of indoor set by opening auxiliary electrical heater during very fast defrost, is swept the blowing angle of aerofoil by setting, it is to avoid the uncomfortable impact that the reduction of heating effect brings in electricity auxiliary heating process.
Specifically, angle on target is set to sweep aerofoil when being 0 degree, and i.e. sweeping aerofoil is closed mode；May also set up and sweep aerofoil and be in the minimum angles or maximum angle opened, multiple on-line system connects multiple stage indoor set, user is currently in use to the indoor set of heating operation, sweeps aerofoil and get to minimum angles during defrost, can avoid blowing cold air；The indoor set in room untapped for user, can arrange and sweep aerofoil and be opened to maximum angle, to accelerate heat exchange, shortens the system defrost time, so that air-conditioning can reach to heat state as early as possible, it is ensured that the comfortableness of indoor occupant.
In the present invention one specific embodiment, first object rotating speed and the second rotating speed of target are the arbitrary rotating speed gear in the refrigeration mode of indoor set, heating mode, dehumidification mode or air supply pattern.Indoor set is when opening, indoor occupant is according to the duty of indoor actual comfort level demand regulation indoor set, when indoor set opens very fast defrosting function, system controls the indoor set of multi-connected machine according to mode of operation instantly, control each indoor set to regulate to its corresponding rotating speed of target, combination by blower fan Yu indoor set auxiliary electrical heating function, it is ensured that the comfortableness of indoor occupant.
Indoor set is under above-mentioned refrigeration mode, heating mode, dehumidification mode or air supply pattern, the rotating speed size that the equal scalable of blower fan is different, specifically, rotating speed gear in indoor set mode of operation is the high-grade rotating speed under indoor set mode of operation, middle-grade rotating speed, low-grade rotating speed or other rotating speed gear adjustable, rotation speed of fan gear can pass through manual adjustment, according to indoor user whether in room, it is adjustable to suitable rotating speed and controls air force, to shorten the defrost time as far as possible, reach to heat state as early as possible, adapt to the comfortableness requirement of indoor occupant.
In the present invention one specific embodiment, step 3) and step 5) in the opening sequence of each work be adjustable pattern.Opening the electric order assisting heating, control rotation speed of fan and regulation to sweep aerofoil angle can mutually adjust, opening sequence can be designed as different mode of operations according to indoor practical situation, is not restricted.
In the present invention one specific embodiment, multi-gang air-conditioner includes at least one off-premises station.The multi-connected machine defrosting control method that the present invention provides, can realize the multi-connected machine with an off-premises station is carried out very fast defrosting control, improve the thermal comfort of indoor simultaneously, be also suitably for the multiple on-line system with multiple off-premises station simultaneously, applied range, practical value is high.
As in figure 2 it is shown, the flow chart of a detailed description of the invention of multi-connected machine control method that Fig. 2 provides for the present invention.
Assuming that multiple on-line system has multiple stage indoor set, including indoor set A, indoor set B, indoor set C and indoor set D.The very fast defrost pattern that each indoor set sets is respectively as follows: indoor set A, pattern one；Indoor set B, pattern two；Indoor set C, pattern three；Indoor set D, pattern four.When system sends defrost signal to indoor set, the state of each indoor set is respectively as follows: indoor set A, heating operation；Indoor set B, air-supply runs；Indoor set C, shuts down to temperature spot；Indoor set D, shutdown.Each indoor set judges whether to perform very fast defrost action according to the defrost pattern set and current state.
Each very fast defrost pattern is defined as follows:
Pattern one: be carried out very fast defrost action when starting shooting or shut down；Pattern two: perform very fast defrost action during start, does not perform very fast defrost action during shutdown；Pattern three: do not perform very fast defrost action during start, performs very fast defrost action during shutdown；Pattern four: the most do not perform very fast defrost action when starting shooting or shut down.
In the present invention; heating mode, air supply pattern and to temperature spot shut down all be set as open state; after booting up judgement; continue to determine whether to perform the operation of very fast defrosting function; specific works state according to indoor set carries out the operation of different working modes; thus; system defrost run duration; the indoor set performing very fast defrost action is indoor set A and indoor set B; the indoor set not performing very fast defrost action is indoor set C and indoor set D; carried out by the control respectively of very fast defrost action, it is ensured that the comfortableness of indoor.
Based on the multi-connected machine defrosting control method provided in above-described embodiment, present invention also offers a kind of multi-connected machine defrosting control system, the defrosting control method that this multi-connected machine defrosting control system uses is the multi-connected machine defrosting control method provided in above-described embodiment.
Owing to this multi-connected machine defrosting control system have employed the multi-connected machine defrosting control method of above-described embodiment, so the beneficial effect that this multi-connected machine defrosting control system is brought by multi-connected machine defrosting control method refer to above-described embodiment.
The multi-connected machine defrosting control system provided based on above-described embodiment, present invention also offers a kind of multi-gang air-conditioner, and this multi-gang air-conditioner uses the multi-connected machine defrosting control system that above-described embodiment provides.
Owing to this multi-gang air-conditioner uses the multi-connected machine defrosting control system of above-described embodiment, so the beneficial effect that this multi-gang air-conditioner is brought by multi-connected machine defrosting control system refer to above-described embodiment.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a multi-connected machine defrosting control method, for the control of the very fast defrost pattern of multi-gang air-conditioner indoor set, the very fast defrost pattern of this indoor set is for controlling off-premises station defrost, it is characterised in that include step:
1) judge whether described indoor set is in open state, if it is, enter step 2), if it does not, enter step 4)；
2) judge whether described indoor set performs very fast defrosting function, if it is, enter step 3), if it does not, process according to conventional defrost mode；
3) open indoor set auxiliary electrical heating function, control indoor set blower fan to first object rotating speed；
4) judge whether described indoor set performs very fast defrosting function, if it is, enter step 5), if it does not, process according to conventional defrost mode；
5) open indoor set auxiliary electrical heating function, control indoor set blower fan to the second rotating speed of target.
Multi-connected machine defrosting control method the most according to claim 1, it is characterised in that described open state includes that indoor set heats state, indoor set to preset temperature point stopped status or indoor set ventilation state.
Multi-connected machine defrosting control method the most according to claim 1, it is characterised in that described step 3) and described step 5) the most also include, the aerofoil of sweeping controlling the indoor set that aerofoil swept by band is opened to angle on target.
Multi-connected machine defrosting control method the most according to claim 1, it is characterised in that described first object rotating speed and described second rotating speed of target are the arbitrary rotating speed gear in the refrigeration mode of described indoor set, heating mode, dehumidification mode or air supply pattern.
Multi-connected machine defrosting control method the most according to claim 4, it is characterised in that described rotating speed gear includes high-grade rotating speed, middle-grade rotating speed, low-grade rotating speed or other rotating speed gears adjustable.
Multi-connected machine defrosting control method the most according to claim 3, it is characterised in that described angle on target be described in sweep aerofoil and be set to 0 degree, or described in sweep minimum angles or the maximum angle that aerofoil is opened.
Multi-connected machine defrosting control method the most according to claim 3, it is characterised in that described step 3) and described step 5) in each work opening sequence be adjustable pattern.
Multi-connected machine defrosting control method the most according to claim 1, it is characterised in that described multi-gang air-conditioner includes at least one off-premises station.
9. a multi-connected machine defrosting control system, it is characterised in that described multi-connected machine defrosting control system uses the multi-connected machine defrosting control method as described in claim 1-8 any one.
10. a multi-gang air-conditioner, it is characterised in that described multi-gang air-conditioner uses multi-connected machine defrosting control system as claimed in claim 9.
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| CN105526680B (en) * | 2016-01-19 | 2018-09-25 | 珠海格力电器股份有限公司 | The air-cooled cold wind unit defrosting control method of multisystem and device |
| CN105890114A (en) * | 2016-04-12 | 2016-08-24 | 青岛海尔空调电子有限公司 | Control method and device for outdoor unit defrosting |
| CN107339830B (en) * | 2016-04-29 | 2023-05-30 | 广东美的制冷设备有限公司 | Window air conditioner and refrigeration control method thereof |
| CN106322580A (en) * | 2016-08-16 | 2017-01-11 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method and defrosting control device therefor |
| CN107461877B (en) * | 2017-07-19 | 2020-12-08 | 青岛海尔空调电子有限公司 | Defrosting control method for multi-split system |
| CN110160291B (en) * | 2018-02-06 | 2021-04-13 | 中山深宝电器制造有限公司 | Defrosting control scheme for low-temperature heating machine |
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| CN109458700B (en) * | 2018-11-08 | 2020-08-25 | 珠海格力电器股份有限公司 | Multi-online defrosting method and device, storage medium, computer equipment and air conditioner |
| CN109506401A (en) * | 2018-11-09 | 2019-03-22 | 珠海格力电器股份有限公司 | A kind of defrosting control method, system and the storage medium of multi-connected machine heat pump |
| CN110332653B (en) * | 2019-07-10 | 2020-07-24 | 珠海格力电器股份有限公司 | Outdoor unit defrosting control method, device and equipment |
| CN110895031B (en) * | 2019-11-07 | 2021-05-25 | 重庆海尔空调器有限公司 | Air conditioner shutdown control method and device and air conditioner |
| CN111043714B (en) * | 2019-12-31 | 2021-03-12 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner system, defrosting control method and system and computer readable storage medium |
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