CN106524446A - Air conditioner and control method and system thereof - Google Patents
Air conditioner and control method and system thereof Download PDFInfo
- Publication number
- CN106524446A CN106524446A CN201710016856.1A CN201710016856A CN106524446A CN 106524446 A CN106524446 A CN 106524446A CN 201710016856 A CN201710016856 A CN 201710016856A CN 106524446 A CN106524446 A CN 106524446A
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- Prior art keywords
- air
- conditioner
- unit
- temperature
- fan
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides a control method and system of an air conditioner. The air conditioner comprises an air conditioner outdoor unit and an air conditioner indoor unit. The control method of the air conditioner comprises the following steps: when receiving a defrosting command of the air conditioner outdoor unit, recording the temperature T20 of the middle of a heat exchanger of the indoor unit; detecting the temperature T2 of the middle of the heat exchanger of the indoor unit in real time; judging whether difference delta T between T2 and T20 is greater than a preset threshold value N or not; when delta T is greater than or equal to N, judging whether a defrosting canceling command is received or not; and when delta T is smaller than N, reducing the revolving speed of a fan of the air conditioner indoor unit. In a defrosting process, the revolving speed of the fan is in linkage with the temperature T2 of the middle of the heat exchanger of the air conditioner indoor unit, so that the revolving speed of the fan is reduced to guarantee the temperature of outlet air; and comfort level is increased, the circumstance that comfort level of an indoor environment is poor due to over large fluctuation of the temperature of the outlet air during defrosting is avoided, and therefore, use experiments and use satisfaction of a user are improved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of control method of air-conditioner, system and air-conditioning
Device.
Background technology
Defrost mode employed in the air-conditioner of correlation technique is all to carry out Hot-air blowing device using the delivery temperature of compressor
Frost, this is accomplished by by four-way change-over valve ability defrost, when defrost is started, and four-way change-over valve commutation makes outdoor heat converter
Heat release, indoor heat converter heat absorption, can cause indoor environment temperature to reduce, and in colder environment, air-conditioner operation refrigeration is followed
Ring, can cause room temperature sometimes hot and sometimes cold, necessarily increase the discomfort of user.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
For this purpose, it is an object of the present invention to proposing a kind of control method of air-conditioner.
Further object is that proposing a kind of control system of air-conditioner.
Another object of the present invention also proposed a kind of air-conditioner.
In view of this, a purpose of the invention, it is proposed that a kind of control method of air-conditioner, air-conditioner include sky
Device off-premises station and air conditioner room unit, the control method of air-conditioner is adjusted to include：Air-conditioner outdoor unit is received into the finger of defrost
When making, indoor set heat exchanger middle portion temperature T20 is recorded；Real-time detection indoor set heat exchanger middle portion temperature T2；Judge T2 and T20's
Whether difference DELTA T is more than predetermined threshold value N；As Δ T >=N, judge whether to receive and exit defrost instruction；As Δ T ＜ N, adjust
The rotation speed of fan of low air conditioner room unit.
The control method of the air-conditioner that the present invention is provided, by changing detecting when defrost and record air conditioner room unit
Hot device middle portion temperature T20, the real-time detection air conditioner room unit heat exchanger middle portion temperature T2 into after defrost, and by by T2 with
Difference DELTA T of T20 is compared with predetermined threshold value N, and then judges whether to complete defrost, as Δ T >=N, judges whether to connect
Receive and exit defrost instruction；As Δ T ＜ N, the rotation speed of fan of air conditioner room unit is turned down；In causing during defrost
Rotation speed of fan is linked with air conditioner room unit heat exchanger middle portion temperature T2, and then ensures wind-warm syndrome by reducing rotation speed of fan
Degree, increases comfort level, it is to avoid during defrost, leaving air temp fluctuation is excessive, causes the comfortableness of indoor environment poor, lifts making for user
With experience and user satisfaction.
The control method of above-mentioned air-conditioner of the invention, can also have following technical characteristic：
In above-mentioned technical proposal, it is preferable that also include：When receive exit defrost instruct when, terminate defrost；When not connecing
When receiving defrost instruction, continue real-time detection indoor set heat exchanger middle portion temperature T2.
In the technical scheme, when satisfaction exits defrost condition, defrost, reducing energy consumption are exited；Defrost instruction is not received
When, then continue real-time detection indoor set heat exchanger middle portion temperature T2, to realize whether real-time judge can exit defrost, reduce energy
Consumption, meanwhile, the rotating speed of real-time adjustment indoor fan, to reduce the temperature difference of indoor temperature, improves the comfortableness of indoor temperature.
In above-mentioned technical proposal, it is preferable that also include：The intake air temperature T1 of real-time detection air conditioner room unit；Root
According to formula T=a*T2+b* rotation speed of fan+d, air outlet temperature T of air conditioner room unit is calculated；Or
According to formula T=a*T2+b*T1+c* rotation speed of fan+d, air outlet temperature T of air conditioner room unit is calculated；Wherein
Described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
Judge whether T is located between T1 and T2；When T is located between T1 and T2, internal machine of air-conditioner rotation speed of fan is maintained not
Become；When T is not located between T1 and T2, that continues control indoor set blower fan turns down rotating speed.
In the technical scheme, in order to ensure the comfortableness of indoor temperature, judged by following two modes
The temperature of air outlet, first, temperature T1 of real-time detection air inlet；The first, by formula T=a*T2+b* rotation speed of fan+d,
Calculate air outlet temperature T of the air conditioner room unit；Which two is, in order to more accurately calculate the temperature of air outlet, to pass through
Formula T=a*T2+b*T1+c* rotation speed of fan+d, calculate air outlet temperature T of the air conditioner room unit；Wherein described a, b are
Constant more than 0, the c are the constant less than 0, and d is constant；Further, judge temperature T of air outlet whether positioned at T1 with
Between T2；When T is located between T1 and T2, then the thermal gradient model of interior is illustrated less, in comfort conditions, keep in air-conditioner
Machine rotation speed of fan is constant；When T is not located between T1 and T2, then illustrates that the indoor temperature temperature difference is larger, then adjusted by continuing control
The rotating speed of low indoor set blower fan, so that indoor temperature is in the comfortable stage, lifts the experience of user, more human nature
Change.
In any of the above-described technical scheme, it is preferable that the span of predetermined threshold value N is 1 DEG C≤N≤5 DEG C.
In the technical scheme, the span of predetermined threshold value N is not limited to 1 DEG C≤N≤5 DEG C, and predetermined threshold value N takes
Value scope the comfort level of local environment can be required to carry out according to user it is self-defined, to meet different user to local environment temperature
The requirement of degree, and the habits and customs of different user, personal preference etc..
Another object of the present invention also proposed a kind of control system of air-conditioner, and air-conditioner includes air-conditioner outdoor unit
Include with the control system of air conditioner room unit air-conditioner：Recording unit, for receiving the air-conditioner outdoor unit entranceization
During the instruction of frost, the indoor set heat exchanger middle portion temperature T20 is recorded；First detector unit, for indoor described in real-time detection
Machine heat exchanger middle portion temperature T2；Whether the first judging unit, judge the poor Δ T values of the T20 and T2 more than predetermined threshold value
N；Second judging unit, exits defrost instruction for as the Δ T >=N, judging whether to receive；First control unit, uses
When as the Δ T ＜ N, the rotation speed of fan of the air conditioner room unit is turned down.
The control system of a kind of air-conditioner that the present invention is provided, by when defrost detecting and recording in air conditioner chamber
Machine heat exchanger middle portion temperature T20, the real-time detection air conditioner room unit heat exchanger middle portion temperature T2 into after defrost, and by by T2
It is compared with predetermined threshold value N with difference DELTA T of T20, and then judges whether to complete defrost, as Δ T >=N, judges whether
Receive and exit defrost instruction；As Δ T ＜ N, the rotation speed of fan of air conditioner room unit is turned down；By causing during defrost
Inner blower rotating speed is linked with air conditioner room unit heat exchanger middle portion temperature T2, and then ensures air-out by reducing rotation speed of fan
Temperature, increases comfort level, it is to avoid during defrost, leaving air temp fluctuation is excessive, causes the comfortableness of indoor environment poor, lifts user's
Experience and user satisfaction.
A kind of control system of the air-conditioner provided according to the present invention, can also have following technical characteristic：
In above-mentioned technical proposal, it is preferable that also include：Second control unit, for described exiting defrost when receiving
During instruction, terminate defrost；Returning unit, for when the defrost instruction is not received, returning and continuing room described in real-time detection
Interior machine heat exchanger middle portion temperature T2.
In the technical scheme, when satisfaction exits defrost condition, defrost, reducing energy consumption are exited；Defrost instruction is not received
When, then continue real-time detection indoor set heat exchanger middle portion temperature T2, to realize whether real-time judge can exit defrost, reduce energy
Consumption, meanwhile, the rotating speed of real-time adjustment indoor fan, to reduce the temperature difference of indoor temperature, improves the comfortableness of indoor temperature.
In above-mentioned technical proposal, it is preferable that also include：3rd detector unit, for air conditioner chamber described in real-time detection
The intake air temperature T1 of interior machine；First computing unit, for according to formula T=a*T2+b* rotation speed of fan+d, calculating the air-conditioning
Air outlet temperature T of air conditioner indoor machine；Or
Second computing unit, for according to formula T=a*T2+b*T1+c* rotation speed of fan+d, calculating in the air conditioner chamber
Air outlet temperature T of machine；
Wherein, described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
3rd judging unit, for judging whether the T is located between the T1 and the T2；3rd control unit, uses
In when the T is located between the T1 and the T2, the internal machine of air-conditioner rotation speed of fan remains unchanged；4th control is single
Unit, for when the T is not located between the T1 and the T2, that continues the control indoor set blower fan turns down rotating speed.
In the technical scheme, in order to ensure the comfortableness of indoor temperature, judged by following two modes
The temperature of air outlet, first, temperature T1 of real-time detection air inlet；The first, by formula T=a*T2+b* rotation speed of fan+d,
Calculate air outlet temperature T of the air conditioner room unit；Which two is, in order to more accurately calculate the temperature of air outlet, to pass through
Formula T=a*T2+b*T1+c* rotation speed of fan+d, calculate air outlet temperature T of the air conditioner room unit；Wherein described a, b are
Constant more than 0, the c are the constant less than 0, and d is constant；Further, judge temperature T of air outlet whether positioned at T1 with
Between T2；When T is located between T1 and T2, then the thermal gradient model of interior is illustrated less, in comfort conditions, keep in air-conditioner
Machine rotation speed of fan is constant；When T is not located between T1 and T2, then illustrates that the indoor temperature temperature difference is larger, then adjusted by continuing control
The rotating speed of low indoor set blower fan, so that indoor temperature is in the comfortable stage, lifts the experience of user, more human nature
Change.
In any of the above-described technical scheme, it is preferable that the span of predetermined threshold value N is 1 DEG C≤N≤5 DEG C.
In the technical scheme, the span of predetermined threshold value N is not limited to 1 DEG C≤N≤5 DEG C, and predetermined threshold value N takes
Value scope the comfort level of local environment can be required to carry out according to user it is self-defined, to meet different user to local environment temperature
The requirement of degree, and the habits and customs of different user, personal preference etc..
A further object of the present invention proposes a kind of air-conditioner, including air-conditioner outdoor unit and air conditioner room unit, also
Including the air conditioner control system of any of the above-described technical scheme.
The air-conditioner that the present invention is provided, because of the air conditioner control system including any of the above-described technical scheme, therefore has upper
Whole beneficial effects of air conditioner control system described in arbitrary technical scheme are stated, here is not being repeated.
In above-mentioned technical proposal, it is preferable that also include：First temperature sensor, is arranged on the air conditioner room unit
Indoor heat exchanger middle part；Second temperature sensor, is arranged on the air inlet of the air conditioner room unit.
In the technical scheme, temperature biography is respectively provided with by the middle part of heat exchanger indoors and the air inlet of indoor set
Sensor, realize can with the middle part of real-time detection indoor heat exchanger and air inlet temperature, and then adjust indoor fan wind speed, with
Ensure the comfortableness of indoor environment temperature, lift Consumer's Experience.
The additional aspect and advantage of the present invention will become obvious in following description section, or by the practice of the present invention
Recognize.
Description of the drawings
Fig. 1 shows the control method schematic flow sheet of the air-conditioner of one embodiment of the invention；
Fig. 2 shows the control method schematic flow sheet of the air-conditioner of further embodiment of the present invention；
Fig. 3 shows the control method schematic flow sheet of the air-conditioner of one embodiment of the invention；
Fig. 4 shows the control system block schematic illustration of the air-conditioner of further embodiment of the present invention；
Fig. 5 shows the control system block schematic illustration of the air-conditioner of another embodiment of the invention；
Fig. 6 shows the block schematic illustration of the air-conditioner of one embodiment of the invention；
Fig. 7 shows the block schematic illustration of the air-conditioner of one embodiment of the invention.
Specific embodiment
It is in order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and concrete real
Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment restriction.
Control method and the control of a kind of air-conditioner described according to some embodiments of the invention are described referring to Fig. 1 to Fig. 7
System processed.
As shown in figure 1, a kind of schematic flow sheet of the control method of air-conditioner of one embodiment of the present of invention, wherein,
Air-conditioner includes air-conditioner outdoor unit and air conditioner room unit, and the control method of air-conditioner includes：
Step 102, receive air-conditioner outdoor unit into defrost instruction when, record indoor set heat exchanger middle portion temperature
T20；
Step 104, real-time detection indoor set heat exchanger middle portion temperature T2；
Whether step 106, judge difference DELTA T of T2 and T20 more than predetermined threshold value N；
Step 108, as Δ T >=N, judges whether to receive and exits defrost instruction；
Step 110, as Δ T ＜ N, turns down the rotation speed of fan of air conditioner room unit, return to step 104.
The control method of the air-conditioner that the present invention is provided, by changing detecting when defrost and record air conditioner room unit
Hot device middle portion temperature T20, the real-time detection air conditioner room unit heat exchanger middle portion temperature T2 into after defrost, and by by T2 with
Difference DELTA T of T20 is compared with predetermined threshold value N, and then judges whether to complete defrost, as Δ T >=N, judges whether to connect
Receive and exit defrost instruction；As Δ T ＜ N, the rotation speed of fan of air conditioner room unit is turned down；In causing during defrost
Rotation speed of fan is linked with air conditioner room unit heat exchanger middle portion temperature T2, and then ensures wind-warm syndrome by reducing rotation speed of fan
Degree, increases comfort level, it is to avoid during defrost, leaving air temp fluctuation is excessive, causes the comfortableness of indoor environment poor, lifts making for user
With experience and user satisfaction.
As shown in Fig. 2 a kind of schematic flow sheet of the control method of air-conditioner of yet another embodiment of the present invention, its
In, air-conditioner includes air-conditioner outdoor unit and air conditioner room unit, and the control method of air-conditioner includes：
Step 202, receive air-conditioner outdoor unit into defrost instruction when, record indoor set heat exchanger middle portion temperature
T20；
Step 204, real-time detection indoor set heat exchanger middle portion temperature T2；
Whether step 206, judge difference DELTA T of T2 and T20 more than predetermined threshold value N；
Step 208, as Δ T >=N, judges whether to receive and exits defrost instruction；
Step 210, as Δ T ＜ N, turns down the rotation speed of fan of air conditioner room unit, return to step 204；
Step 212, when receive exit defrost instruct when, terminate defrost；When defrost instruction is not received, continue real-time
Detection indoor set heat exchanger middle portion temperature T2.
In this embodiment, when satisfaction exits defrost condition, defrost, reducing energy consumption are exited；When not receiving defrost instruction,
Then continue real-time detection indoor set heat exchanger middle portion temperature T2, to realize whether real-time judge can exit defrost, reducing energy consumption,
Meanwhile, the rotating speed of real-time adjustment indoor fan, to reduce the temperature difference of indoor temperature, improves the comfortableness of indoor temperature.
As shown in figure 3, a kind of schematic flow sheet of the control method of air-conditioner of another embodiment of the present invention, its
In, air-conditioner includes air-conditioner outdoor unit and air conditioner room unit, and the control method of air-conditioner includes：
Step 302, receive air-conditioner outdoor unit into defrost instruction when, record indoor set heat exchanger middle portion temperature
T20；
Step 304, real-time detection indoor set heat exchanger middle portion temperature T2；
Whether step 306, judge difference DELTA T of T2 and T20 more than predetermined threshold value N；
Step 308, as Δ T >=N, judges whether to receive and exits defrost instruction；
Step 310, as Δ T ＜ N, turns down the rotation speed of fan of air conditioner room unit；
Step 312, the intake air temperature T1 of real-time detection air conditioner room unit；
Step 314, according to formula T=a*T2+b* rotation speed of fan+d, calculates air outlet temperature T of air conditioner room unit；Or
According to formula T=a*T2+b*T1+c* rotation speed of fan+d, air outlet temperature T of air conditioner room unit is calculated；Wherein
Described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
Step 316, judges whether T is located between T1 and T2；
Step 318, when T is located between T1 and T2, internal machine of air-conditioner rotation speed of fan remains unchanged；
Step 320, when T is not located between T1 and T2, that continues control indoor set blower fan turns down rotating speed, return to step
304；
Step 322, when receive exit defrost instruct when, terminate defrost；When defrost instruction is not received, continue real-time
Detection indoor set heat exchanger middle portion temperature T2.
In this embodiment, in order to ensure the comfortableness of indoor temperature, judged by following two modes
The temperature in air port, first, temperature T1 of real-time detection air inlet；The first, by formula T=a*T2+b* rotation speed of fan+d, counts
Calculate air outlet temperature T of the air conditioner room unit；Which two is, in order to more accurately calculate the temperature of air outlet, by public affairs
Formula T=a*T2+b*T1+c* rotation speed of fan+d, calculates air outlet temperature T of the air conditioner room unit；Wherein described a, b are big
In 0 constant, the c is the constant less than 0, and d is constant；Further, judge temperature T of air outlet whether positioned at T1 and T2
Between；When T is located between T1 and T2, then the thermal gradient model of interior is illustrated less, in comfort conditions, keep internal machine of air-conditioner
Rotation speed of fan is constant；When T is not located between T1 and T2, then illustrates that the indoor temperature temperature difference is larger, then turned down by continuing control
The rotating speed of indoor set blower fan, so that indoor temperature is in the comfortable stage, lifts the experience of user, more hommization.
In one embodiment of the invention, the span of predetermined threshold value N is not limited to 1 DEG C≤N≤5 DEG C, presets
The span of threshold value N the comfort level of local environment can be required to carry out according to user it is self-defined, to meet different user pair
The requirement of local environment temperature, and the habits and customs of different user, personal preference etc..
As shown in figure 4, a kind of frame diagram of the control system of air-conditioner of one embodiment of the present of invention, wherein, air-conditioning
Device includes air-conditioner outdoor unit and air conditioner room unit, and the control system 400 includes：
Recording unit 402, when entering the instruction of defrost for receiving the air-conditioner outdoor unit, records the indoor set
Heat exchanger middle portion temperature T20；
First detector unit 404, for indoor set heat exchanger middle portion temperature T2 described in real-time detection；
Whether the first judging unit 406, judge the poor Δ T values of the T20 and T2 more than predetermined threshold value N；
Second judging unit 408, exits defrost instruction for as the Δ T >=N, judging whether to receive；
First control unit 410, for as the Δ T ＜ N, turning down the rotation speed of fan of the air conditioner room unit.
The control system of a kind of air-conditioner that the present invention is provided, by when defrost detecting and recording in air conditioner chamber
Machine heat exchanger middle portion temperature T20, the real-time detection air conditioner room unit heat exchanger middle portion temperature T2 into after defrost, and by by T2
It is compared with predetermined threshold value N with difference DELTA T of T20, and then judges whether to complete defrost, as Δ T >=N, judges whether
Receive and exit defrost instruction；As Δ T ＜ N, the rotation speed of fan of air conditioner room unit is turned down；By causing during defrost
Inner blower rotating speed is linked with air conditioner room unit heat exchanger middle portion temperature T2, and then ensures air-out by reducing rotation speed of fan
Temperature, increases comfort level, it is to avoid during defrost, leaving air temp fluctuation is excessive, causes the comfortableness of indoor environment poor, lifts user's
Experience and user satisfaction.
As shown in figure 5, a kind of frame diagram of the control system of air-conditioner of one embodiment of the present of invention, wherein, air-conditioning
Device includes air-conditioner outdoor unit and air conditioner room unit, and the control system includes：
Recording unit 502, when entering the instruction of defrost for receiving the air-conditioner outdoor unit, records the indoor set
Heat exchanger middle portion temperature T20；
First detector unit 504, for indoor set heat exchanger middle portion temperature T2 described in real-time detection；
Whether the first judging unit 506, judge the poor Δ T values of the T20 and T2 more than predetermined threshold value N；
Second judging unit 508, exits defrost instruction for as the Δ T >=N, judging whether to receive；
First control unit 510, for as the Δ T ＜ N, turning down the rotation speed of fan of the air conditioner room unit.
Second control unit 512, for when receive it is described exit defrost and instruct when, terminate defrost；
Returning unit 514, for when the defrost instruction is not received, returning the first detector unit 504 and continuing in real time
Detect the indoor set heat exchanger middle portion temperature T2.
In this embodiment, when satisfaction exits defrost condition, defrost, reducing energy consumption are exited；When not receiving defrost instruction,
Then continue real-time detection indoor set heat exchanger middle portion temperature T2, to realize whether real-time judge can exit defrost, reducing energy consumption,
Meanwhile, the rotating speed of real-time adjustment indoor fan, to reduce the temperature difference of indoor temperature, improves the comfortableness of indoor temperature.
As shown in fig. 6, a kind of frame diagram of the control system of air-conditioner of one embodiment of the present of invention, wherein, air-conditioning
Device includes air-conditioner outdoor unit and air conditioner room unit, and the control system includes：
Recording unit 602, when entering the instruction of defrost for receiving the air-conditioner outdoor unit, records the indoor set
Heat exchanger middle portion temperature T20；
First detector unit 604, for indoor set heat exchanger middle portion temperature T2 described in real-time detection；
Whether the first judging unit 606, judge the poor Δ T values of the T20 and T2 more than predetermined threshold value N；
Second judging unit 608, exits defrost instruction for as the Δ T >=N, judging whether to receive；
First control unit 610, for as the Δ T ＜ N, turning down the rotation speed of fan of the air conditioner room unit.
3rd detector unit 612, for the intake air temperature T1 of air conditioner room unit described in real-time detection；
Computing unit 614, for according to formula T=a*T2+b* rotation speed of fan+d, calculating going out for the air conditioner room unit
Draught temperature T；Or for according to formula T=a*T2+b*T1+c* rotation speed of fan+d, calculating the air-out of the air conditioner room unit
Mouth temperature T；, wherein, described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
3rd judging unit 616, for judging whether the T is located between the T1 and the T2；
3rd control unit 618, for when the T be located between the T1 and the T2 when, the internal machine of air-conditioner wind
Machine rotating speed remains unchanged；
4th control unit 620, for when the T is not located between the T1 and the T2, continuing the control room
Interior machine blower fan turns down rotating speed.
Second control unit 622, for when receive it is described exit defrost and instruct when, terminate defrost；
Returning unit 624, for when the defrost instruction is not received, returning the first detector unit 504 and continuing in real time
Detect the indoor set heat exchanger middle portion temperature T2.
In this embodiment, in order to ensure the comfortableness of indoor temperature, judged by following two modes
The temperature in air port, first, temperature T1 of real-time detection air inlet；The first, by formula T=a*T2+b* rotation speed of fan+d, counts
Calculate air outlet temperature T of the air conditioner room unit；Which two is, in order to more accurately calculate the temperature of air outlet, by public affairs
Formula T=a*T2+b*T1+c* rotation speed of fan+d, calculates air outlet temperature T of the air conditioner room unit；Wherein described a, b are big
In 0 constant, the c is the constant less than 0, and d is constant；Further, judge temperature T of air outlet whether positioned at T1 and T2
Between；When T is located between T1 and T2, then the thermal gradient model of interior is illustrated less, in comfort conditions, keep internal machine of air-conditioner
Rotation speed of fan is constant；When T is not located between T1 and T2, then illustrates that the indoor temperature temperature difference is larger, then turned down by continuing control
The rotating speed of indoor set blower fan, so that indoor temperature is in the comfortable stage, lifts the experience of user, more hommization.
In one embodiment of the invention, the span of predetermined threshold value N is not limited to 1 DEG C≤N≤5 DEG C, presets
The span of threshold value N the comfort level of local environment can be required to carry out according to user it is self-defined, to meet different user pair
The requirement of local environment temperature, and the habits and customs of different user, personal preference etc..
A further object of the present invention proposes a kind of air-conditioner, including air-conditioner outdoor unit and air conditioner room unit, also
Including the air conditioner control system of any of the above-described technical scheme.
The air-conditioner that the present invention is provided, because of the air conditioner control system including any of the above-described technical scheme, therefore has upper
Whole beneficial effects of air conditioner control system described in arbitrary technical scheme are stated, here is not being repeated.
As shown in fig. 7, the air-conditioner 700 of one embodiment of the invention, including the air-conditioner of any of the above-described technical scheme
Control system 70.
In one embodiment of the invention, also include：First temperature sensor, is arranged on the air conditioner room unit
The middle part of indoor heat exchanger；Second temperature sensor, is arranged on the air inlet of the air conditioner room unit.
In this embodiment, TEMP is respectively provided with by the middle part of heat exchanger indoors and the air inlet of indoor set
Device, realize can with the middle part of real-time detection indoor heat exchanger and air inlet temperature, and then adjust indoor fan wind speed, with protect
The comfortableness of card indoor environment temperature, lifts Consumer's Experience.
In the present invention, term " multiple " then refers to two or more, unless otherwise clearly restriction.Term " peace
The term such as dress ", " being connected ", " connection ", " fixation " all should be interpreted broadly, and for example, " connection " can be fixedly connected, it is also possible to
It is to be detachably connected, or is integrally connected；" being connected " can be joined directly together, it is also possible to be indirectly connected to by intermediary.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in of the invention at least one real
Apply in example or example.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of control method of air-conditioner, the air-conditioner include air-conditioner outdoor unit and air conditioner room unit, and its feature exists
In the control method of the air-conditioner includes：
Receive the air-conditioner outdoor unit into defrost instruction when, record the indoor set heat exchanger middle portion temperature T20；
Indoor set heat exchanger middle portion temperature T2 described in real-time detection；
Judge difference DELTA T of the T2 and T20 whether more than predetermined threshold value N；
As the Δ T >=N, judge whether to receive and exit defrost instruction；
As the Δ T ＜ N, the rotation speed of fan of the air conditioner room unit is turned down.
2. the control method of air-conditioner according to claim 1, it is characterised in that also include：
When receive it is described exit defrost and instruct when, terminate defrost；
When the defrost instruction is not received, continue indoor set heat exchanger middle portion temperature T2 described in real-time detection.
3. the control method of air-conditioner according to claim 1, it is characterised in that also include：
The intake air temperature T1 of air conditioner room unit described in real-time detection；
According to formula T=a*T2+b* rotation speed of fan+d, air outlet temperature T of the air conditioner room unit is calculated；Or
According to formula T=a*T2+b*T1+c* rotation speed of fan+d, air outlet temperature T of the air conditioner room unit is calculated；
Wherein described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
Judge whether the T is located between the T1 and the T2；
When the T is located between the T1 and the T2, the internal machine of air-conditioner rotation speed of fan remains unchanged；
When the T is not located between the T1 and the T2, that continues the control indoor set blower fan turns down rotating speed.
4. the control method of air-conditioner according to any one of claim 1 to 3, it is characterised in that
The span of predetermined threshold value N is 1 DEG C≤N≤5 DEG C.
5. a kind of control system of air-conditioner, the air-conditioner include air-conditioner outdoor unit and air conditioner room unit, and its feature exists
In the control system of the air-conditioner includes：
Recording unit, when entering the instruction of defrost for receiving the air-conditioner outdoor unit, records the indoor set heat exchanger
Middle portion temperature T20；
First detector unit, for indoor set heat exchanger middle portion temperature T2 described in real-time detection；
Whether the first judging unit, judge the poor Δ T values of the T20 and T2 more than predetermined threshold value N；
Second judging unit, exits defrost instruction for as the Δ T >=N, judging whether to receive；
First control unit, for as the Δ T ＜ N, turning down the rotation speed of fan of the air conditioner room unit.
6. the control system of air-conditioner according to claim 5, it is characterised in that also include：
Second control unit, for when receive it is described exit defrost and instruct when, terminate defrost；
Returning unit, for when the defrost instruction is not received, returning and continuing in indoor set heat exchanger described in real-time detection
Portion's temperature T2.
7. the control system of air-conditioner according to claim 5, it is characterised in that also include：
3rd detector unit, for the intake air temperature T1 of air conditioner room unit described in real-time detection；
First computing unit, for according to formula T=a*T2+b* rotation speed of fan+d, calculating the air-out of the air conditioner room unit
Mouth temperature T；Or
Second computing unit, for according to formula T=a*T2+b*T1+c* rotation speed of fan+d, calculating the air conditioner room unit
Air outlet temperature T；
Wherein described a, b are the constant more than 0, and the c is the constant less than 0, and d is constant；
3rd judging unit, for judging whether the T is located between the T1 and the T2；
3rd control unit, for when the T is located between the T1 and the T2, the internal machine of air-conditioner rotation speed of fan is tieed up
Hold constant；
4th control unit, for when the T is not located between the T1 and the T2, continuing the control indoor set blower fan
Turn down rotating speed.
8. the control system of the air-conditioner according to any one of claim 5 to 7, it is characterised in that
The span of predetermined threshold value N is 1 DEG C≤N≤5 DEG C.
9. a kind of air-conditioner, stating air-conditioner includes air-conditioner outdoor unit and air conditioner room unit, it is characterised in that include：As weighed
Profit requires the air conditioner control system any one of 5 to 8.
10. air-conditioner according to claim 9, it is characterised in that also include：
First temperature sensor, is arranged on the middle part of the indoor heat exchanger of the air conditioner room unit；
Second temperature sensor, is arranged on the air inlet of the air conditioner room unit.
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| CN108800456A (en) * | 2018-04-18 | 2018-11-13 | 广东美的制冷设备有限公司 | Refrigeration control method, device, refrigeration equipment and computer readable storage medium |
| CN109458708A (en) * | 2018-10-31 | 2019-03-12 | 珠海格力电器股份有限公司 | Without communication air-conditioning and its operational mode judgment method and control method |
| CN110848888A (en) * | 2019-11-29 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner, control method thereof and computer storage medium |
| CN113339940A (en) * | 2021-05-31 | 2021-09-03 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and device, storage medium and air conditioner |
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| CN113339940A (en) * | 2021-05-31 | 2021-09-03 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and device, storage medium and air conditioner |
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|---|---|
| CN106524446B (en) | 2019-11-26 |
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