CN108375257A - Air-conditioner control method and control circuit - Google Patents
Air-conditioner control method and control circuit Download PDFInfo
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- CN108375257A CN108375257A CN201810008206.7A CN201810008206A CN108375257A CN 108375257 A CN108375257 A CN 108375257A CN 201810008206 A CN201810008206 A CN 201810008206A CN 108375257 A CN108375257 A CN 108375257A
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Classifications
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- 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
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- 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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- 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
- F24F2110/12—Temperature of the outside air
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2106—Temperatures of fresh outdoor air
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioner control method and control circuit, the method includes：Indoor unit controls four-way valve according to present mode of operation so that the conducting direction of four-way valve and the refrigerant flow direction of the present mode of operation demand match；Outdoor unit control compressor is run with original frequency, and after meeting preset operating conditions, outdoor unit obtains compressor current exhaust gas temperature, determines that current operation frequency, control compressor are run with the current operation frequency according to the current exhaust gas temperature.With the application of the invention, the control of air conditioner in the case of being communicated there is no connection between indoor unit and outdoor unit may be implemented.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to a kind of air-conditioner control method and control electricity
Road.
Background technology
Transducer air conditioning is widely used because of the advantages that temperature control precision is high, energy saving.Existing transducer air conditioning is pressed
When contracting unit frequency controls, indoor unit is communicated with outdoor unit setting connection, the indoor real time temperature of indoor unit detection, according to reality
Shi Wendu and target temperature get indoor unit frequency control signal, which is sent to outdoor unit,
Outdoor unit controls compressor frequency according to the signal, realizes frequency modulation operation.
For transducer air conditioning, if connection is not present between indoor unit and outdoor unit, for example, to simplify air conditioner knot
Structure eliminates the connection between indoor unit and outdoor unit, and indoor unit cannot be communicated with outdoor unit by connection, the feelings
How to realize that the control of air conditioner, the control of especially compressor frequency, the prior art there is not yet solution under condition.
Invention content
The object of the present invention is to provide a kind of air-conditioner control method and control circuit, with realize indoor unit and outdoor unit it
Between there is no connection communicated in the case of air conditioner control.
For achieving the above object, air-conditioner control method provided by the invention gives reality using following technical proposals
It is existing：
A kind of air-conditioner control method, the method includes：
Indoor unit controls four-way valve according to present mode of operation so that the conducting direction of four-way valve is needed with the present mode of operation
The refrigerant flow direction asked matches；
Outdoor unit control compressor is run with original frequency, and after meeting preset operating conditions, outdoor unit obtains compressor when front row
Temperature degree determines that current operation frequency, control compressor are run with the current operation frequency according to the current exhaust gas temperature.
Method as described above, it is described that current operation frequency is determined according to the current exhaust gas temperature, it specifically includes：According to
The linear relationship and the current exhaust gas temperature of known delivery temperature and running frequency, it is determining to be in the current exhaust gas temperature
The running frequency of linear relationship, as the current operation frequency.
The linear relationship of method as described above, the known delivery temperature and running frequency includes and outdoor environment
Temperature is relevant multiple, and the method further includes：
Outdoor unit obtains current outdoor environment temperature, according to the correspondence and institute of known outdoor environment temperature and linear relationship
It states current outdoor environment temperature, selects a linear relationship corresponding with the current outdoor environment temperature, as working as front
Sexual intercourse；
The linear relationship of delivery temperature and running frequency and the current exhaust gas temperature known to the basis, determination are worked as with described
Front exhaust temperature running frequency in a linear relationship is specifically included as the current operation frequency：
According to the current linear relationship and the current exhaust gas temperature, determine in a linear relationship with the current exhaust gas temperature
Running frequency, as the current operation frequency.
Method as described above, the method further include：
After indoor unit electrifying startup, indoor unit first carries out the process that four-way valve is controlled according to present mode of operation, described
After the conducting direction control in place of four-way valve, indoor unit controls outdoor unit and powers on again.
Method as described above, the method further include：Indoor unit obtains the current total working electric current of complete machine of air conditioner, root
Complete machine protection process and/or outdoor unit breakdown judge process are executed according to the current total working electric current.
To realize that aforementioned invention purpose, air conditioner control circuit provided by the invention give reality using following technical proposals
It is existing：
A kind of air conditioner control circuit, including indoor unit control circuit and outdoor unit control circuit, the indoor unit control circuit
Include four-way valve control unit, VCU, the four-way valve control unit, VCU is connect with the four-way valve being located outside in machine, is worked as basis
Preceding operational mode controls four-way valve so that the conducting direction of four-way valve and the refrigerant of the present mode of operation demand flow to phase
Match；
The outdoor unit control circuit includes frequency control unit and delivery temperature detection unit, and the delivery temperature detection is single
Current exhaust gas temperature of the member for detecting compressor, the frequency control unit are connect with compressor, for controlling compressor elder generation
It is run with original frequency, after meeting preset operating conditions, current operation frequency is determined according to the current exhaust gas temperature, and control
Compressor processed is run with the current operation frequency.
Circuit as described above, the frequency control unit determine current operation frequency according to the current exhaust gas temperature,
It specifically includes：According to the linear relationship and the current exhaust gas temperature of known delivery temperature and running frequency, determine with it is described
Current exhaust gas temperature running frequency in a linear relationship, as the current operation frequency.
Circuit as described above, the outdoor unit control circuit further includes having：Outdoor environment temperature acquiring unit, for obtaining
Take current outdoor environment temperature；
Linear relationship acquiring unit, for according to the correspondence of known outdoor environment temperature and linear relationship and described current
Outdoor environment temperature selects a linear relationship corresponding with the current outdoor environment temperature, as current linear relationship；
The linear relationship of the known delivery temperature and running frequency include it is relevant multiple with outdoor environment temperature, it is described
Frequency control unit is according to the linear relationship and the current exhaust gas temperature of known delivery temperature and running frequency, determining and institute
Current exhaust gas temperature running frequency in a linear relationship is stated to specifically include as the current operation frequency：According to described current
Linear relationship and the current exhaust gas temperature, determining and current exhaust gas temperature running frequency in a linear relationship, as institute
State current operation frequency.
Circuit as described above, the indoor unit control circuit further includes having electric control unit on outdoor unit, for controlling
Outdoor unit powers on；
And indoors after machine electrifying startup, the four-way valve control unit, VCU first carries out described according to present mode of operation control four-way
The process of valve, after the conducting direction control in place of the four-way valve, electric control unit controls outdoor unit again on the outdoor unit
It powers on.
Circuit as described above, the indoor unit control circuit further include having complete machine total working current detecting unit, are used for
The current total working electric current of complete machine is detected, the indoor unit control circuit executes complete machine protection also according to the current total working electric current
Process and/or outdoor unit breakdown judge process.
Compared with prior art, the advantages and positive effects of the present invention are：Air-conditioner control method provided by the invention and
Control circuit controls the commutation of four-way valve using indoor unit, using outdoor unit according to compressor exhaust temperature to compressor operating
Frequency is controlled, without being communicated between indoor unit and outdoor unit, can also realize air-conditioning system refrigerant correct cycles and
The control of compressor frequency, to realize communicated there is no connection between indoor unit and outdoor unit in the case of air-conditioning
The operation of device controls.
After the specific implementation mode of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Description of the drawings
Fig. 1 is the flow chart based on air-conditioner control method one embodiment of the present invention；
Fig. 2 is the functional block diagram based on air conditioner control circuit one embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below with reference to drawings and examples,
Invention is further described in detail.
Fig. 1 is referred to, which show the flow chart based on air-conditioner control method one embodiment of the present invention.In the reality
It applies in example, connection is not set between air conditioner room unit and outdoor unit, cannot be communicated.The embodiment realizes air conditioner control
The method of system includes the following steps：
Step 11：Indoor unit controls four-way valve according to present mode of operation so that the conducting direction of four-way valve and current operation mould
The refrigerant flow direction of formula demand matches.
In the embodiment, the four-way valve in outdoor unit is connect with indoor unit, is controlled by indoor unit.Indoor unit after the power is turned on, root
Four-way valve is controlled according to present mode of operation so that the conducting direction of four-way valve and the refrigerant of present mode of operation demand flow to phase
Match.
Present mode of operation can be the instruction mode that user is inputted by remote controler or air conditioner control panel, for intelligence
Can also be the pattern that air conditioner that indoor unit voluntarily judges, current should be run for the air conditioner that can be run.Current operation
The acquisition modes of pattern can be a variety of, which is not especially limited.
Step 12：Outdoor unit control compressor is run with original frequency, and after meeting preset operating conditions, outdoor unit obtains pressure
Contracting machine current exhaust gas temperature determines that current operation frequency, control compressor are transported with current operation frequency according to current exhaust gas temperature
Row.
Since, without communicating, the running frequency of the compressor in outdoor unit is completely by outdoor between outdoor unit and indoor unit
Machine is controlled.Specifically, after outdoor unit electrifying startup, compressor is controlled first and is run with original frequency.Wherein, initially
The frequency values that frequency is preset, is stored in outdoor unit memory, can easily be read.Meeting default operation
After condition, frequency will be controlled according to the delivery temperature of compressor.Preset operating conditions are also a preset condition, are used
To reflect whether that FREQUENCY CONTROL can be carried out to compressor according to the delivery temperature of compressor.As a preferred embodiment, in advance
If service condition is compressor reaches setting time with original frequency run time, setting time is also preset time
Value.So, meet preset operating conditions, then refer to when time that compressor is run after startup with original frequency having reached setting
Between.Hereafter, FREQUENCY CONTROL will be carried out according to the delivery temperature of compressor.Specifically, outdoor unit obtains compressor current exhaust temperature
Degree determines that current operation frequency, control compressor are run with current operation frequency according to current exhaust gas temperature.
Moreover, to avoid the compressor start operation in the case where coolant system is unripe that indoor temperature is caused to adjust
It is not suitable for, it is preferred that after indoor unit electrifying startup, indoor unit first carries out the process that four-way valve is controlled according to present mode of operation,
After the conducting direction control in place of four-way valve, indoor unit controls outdoor unit and powers on again.Outdoor unit after the power is turned on, can just be executed to pressure
The control of contracting machine.
Using the above method, the commutation of four-way valve is controlled using indoor unit, using outdoor unit according to compressor exhaust temperature
Compressor operating frequency is controlled, without being communicated between indoor unit and outdoor unit, can also realize air-conditioning system refrigerant
Correct cycles and compressor frequency control, to realize, there is no connections to be communicated between indoor unit and outdoor unit
In the case of air conditioner operation control.Also, the size of the height reflection system operation load of delivery temperature, based on exhaust temperature
Degree control compressor frequency, system loading can be controlled in certain, acceptable range, ensure air conditioner machine system
Stable operation.
As a specific embodiment, current operation frequency is determined according to current exhaust gas temperature, is specifically included：According to known
Delivery temperature and running frequency linear relationship and current exhaust gas temperature, determine with current exhaust gas temperature fortune in a linear relationship
Line frequency, as current operation frequency.Wherein, the linear relationship of delivery temperature and running frequency is known, stores and is deposited with outdoor unit
In reservoir.Compressor operating frequency is determined based on linear relationship and delivery temperature, can accurately reflect delivery temperature and pressure
Relationship between contracting machine running frequency, and running frequency method of determination is simple, is easy to realization of the outdoor unit to FREQUENCY CONTROL.
In some other preferred embodiment, the linear relationship of delivery temperature and running frequency includes multiple, and multiple
Linear relationship is related to outdoor environment temperature, is distinguished according to outdoor environment temperature.For there are the air-conditionings of multiple linear relationships
The control of device further includes following processes when determining compressor current operation frequency：
Outdoor unit obtains current outdoor environment temperature, according to the correspondence of known outdoor environment temperature and linear relationship and works as
Preceding outdoor environment temperature selects a linear relationship corresponding with current outdoor environment temperature, as current linear relationship.
So, it according to the linear relationship and current exhaust gas temperature of known delivery temperature and running frequency, determines and current
Delivery temperature running frequency in a linear relationship is specifically included as current operation frequency：According to current linear relationship and currently
Delivery temperature, determining and current exhaust gas temperature running frequency in a linear relationship, as current operation frequency.
Wherein, outdoor environment temperature and the correspondence of linear relationship are also known, are stored in outdoor unit memory
Relationship.Preferably, outdoor environment temperature and the correspondence of linear relationship are outdoor environment temperature range and linear relationship
One-to-one relationship, different outdoor environment temperature ranges correspond to a linear relationship.So, current outdoor environment is being obtained
After temperature, the outdoor environment temperature range described in current outdoor environment temperature is first determined, according to outdoor environment temperature range and line
The one-to-one relationship of sexual intercourse, you can determine the linear relationship corresponding to current outdoor environment temperature, this is corresponding
Linear relationship is determined as current linear relationship to be used.
By the way that linear relationship is corresponding with outdoor environment temperature, the accuracy of compressor frequency control can be improved, just
In the energy saving for improving comfort and reduction air conditioner operation that indoor temperature is adjusted.
Since indoor unit and outdoor unit can not be communicated, how to carry out protection to complete machine is also problem needed to be considered.
In some preferred embodiments, indoor unit obtains the current total working electric current of complete machine of air conditioner, and total working electric current includes indoor unit
Electric current and outdoor unit electric current specifically can obtain the current total working electricity of complete machine by detecting the electric current of the total feeder ear of air conditioner
Stream.Then, indoor unit will execute complete machine according to current total working electric current and protect process, can also be held according to current total working electric current
Row outdoor unit breakdown judge process.For example, current total working electric current is excessive, and complete machine is needed to carry out stoppage protection；Alternatively, in conjunction with room
Interior temperature and current total working electric current, judge whether outdoor unit breaks down, to realize the protection to complete machine.
Fig. 2 show the functional block diagram based on air conditioner control circuit one embodiment of the present invention.In this embodiment, empty
It adjusts and connection is not set between air conditioner indoor machine and outdoor unit, cannot be communicated.
As shown in Fig. 2, the air conditioner control circuit of the embodiment includes indoor unit control circuit and outdoor unit control electricity
Road.Wherein, indoor unit circuit includes governor circuit 31 and four-way valve control unit, VCU 32, can also include automatically controlled on outdoor unit
Unit 33 and total working current detecting unit 34 processed.Outdoor unit control circuit includes frequency control unit 41 and delivery temperature inspection
Unit 42 is surveyed, can also include outdoor environment temperature acquiring unit 43 and linear relationship acquiring unit 44.Also, four-way valve control
Unit 32 processed is connect with the four-way valve 45 in outdoor unit, frequency control unit 41 and delivery temperature detection unit 42 respectively with outdoor
Compressor 46 in machine connects.Four-way valve control unit, VCU 32 controls under the collaboration of governor circuit 31 according to present mode of operation
Four-way valve 45 so that the conducting direction of four-way valve 45 and the refrigerant flow direction of present mode of operation demand match.Outdoor unit controls
Delivery temperature detection unit 42 in circuit is used to detect the current exhaust gas temperature of compressor 46；And frequency control unit 41 is used for
Control compressor 46 is first run with original frequency, and after meeting preset operating conditions, current fortune is determined according to current exhaust gas temperature
Line frequency, and control compressor 46 and run with current operation frequency.
Electric control unit 33 on outdoor unit in indoor unit controls powering on for outdoor unit under the collaboration of governor circuit 31.
Also, indoors after machine electrifying startup, four-way valve control unit, VCU 32 is first carried out controls four-way valve 45 according to present mode of operation
Process, after the conducting direction control in place of four-way valve 45, electric control unit 33 controls outdoor unit and powers on again on outdoor unit.
Total working current detecting unit 34, the current total working electric current for detecting air conditioner complete machine, in turn, indoor unit control
Circuit processed can execute complete machine protection process and/or outdoor unit breakdown judge process according to current total working electric current.
Outdoor environment temperature acquiring unit 43 in outdoor unit, for obtaining current outdoor environment temperature；And linear relationship
Acquiring unit 44 is used for correspondence and current outdoor environment temperature according to known outdoor environment temperature and linear relationship, choosing
A linear relationship corresponding with current outdoor environment temperature is selected, as current linear relationship.41 basis of frequency control unit
The current exhaust gas temperature that current linear relationship and delivery temperature detection unit 42 are detected determines compressor current operation frequency.
Air conditioner control circuit with above structure runs corresponding software program, according to above-mentioned air-conditioner control method
Description, execute air conditioner operation control, realize the case where being communicated there is no connection between indoor unit and outdoor unit
The operation of lower air conditioner controls.The air conditioner control circuit of the embodiment, which more specifically controls process, can refer to above-mentioned controlling party
The description of method.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these are changed or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of air-conditioner control method, which is characterized in that the method includes：
Indoor unit controls four-way valve according to present mode of operation so that the conducting direction of four-way valve is needed with the present mode of operation
The refrigerant flow direction asked matches；
Outdoor unit control compressor is run with original frequency, and after meeting preset operating conditions, outdoor unit obtains compressor when front row
Temperature degree determines that current operation frequency, control compressor are run with the current operation frequency according to the current exhaust gas temperature.
2. according to the method described in claim 1, it is characterized in that, described determine current operation according to the current exhaust gas temperature
Frequency specifically includes：According to the linear relationship and the current exhaust gas temperature of known delivery temperature and running frequency, determine with
Current exhaust gas temperature running frequency in a linear relationship, as the current operation frequency.
3. according to the method described in claim 2, it is characterized in that, the linear pass of the known delivery temperature and running frequency
System includes relevant multiple with outdoor environment temperature, and the method further includes：
Outdoor unit obtains current outdoor environment temperature, according to the correspondence and institute of known outdoor environment temperature and linear relationship
It states current outdoor environment temperature, selects a linear relationship corresponding with the current outdoor environment temperature, as working as front
Sexual intercourse；
The linear relationship of delivery temperature and running frequency and the current exhaust gas temperature known to the basis, determination are worked as with described
Front exhaust temperature running frequency in a linear relationship is specifically included as the current operation frequency：
According to the current linear relationship and the current exhaust gas temperature, determine in a linear relationship with the current exhaust gas temperature
Running frequency, as the current operation frequency.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
After indoor unit electrifying startup, indoor unit first carries out the process that four-way valve is controlled according to present mode of operation, described
After the conducting direction control in place of four-way valve, indoor unit controls outdoor unit and powers on again.
5. method according to claim 1 to 4, which is characterized in that the method further includes：Indoor unit obtains
The current total working electric current of complete machine of air conditioner executes complete machine protection process and/or outdoor unit according to the current total working electric current
Breakdown judge process.
6. a kind of air conditioner control circuit, including indoor unit control circuit and outdoor unit control circuit, which is characterized in that the room
Interior machine control circuit includes four-way valve control unit, VCU, and the four-way valve control unit, VCU and the four-way valve being located outside in machine connect
It connects, for controlling four-way valve according to present mode of operation so that the conducting direction of four-way valve and the present mode of operation demand
Refrigerant flow direction match；
The outdoor unit control circuit includes frequency control unit and delivery temperature detection unit, and the delivery temperature detection is single
Current exhaust gas temperature of the member for detecting compressor, the frequency control unit are connect with compressor, for controlling compressor elder generation
It is run with original frequency, after meeting preset operating conditions, current operation frequency is determined according to the current exhaust gas temperature, and control
Compressor processed is run with the current operation frequency.
7. circuit according to claim 6, which is characterized in that the frequency control unit is according to the current exhaust gas temperature
It determines current operation frequency, specifically includes：According to the linear relationship of known delivery temperature and running frequency and described when front row
Temperature degree, determining and current exhaust gas temperature running frequency in a linear relationship, as the current operation frequency.
8. circuit according to claim 7, which is characterized in that the outdoor unit control circuit further includes having：Outdoor environment
Temperature acquiring unit, for obtaining current outdoor environment temperature；
Linear relationship acquiring unit, for according to the correspondence of known outdoor environment temperature and linear relationship and described current
Outdoor environment temperature selects a linear relationship corresponding with the current outdoor environment temperature, as current linear relationship；
The linear relationship of the known delivery temperature and running frequency include it is relevant multiple with outdoor environment temperature, it is described
Frequency control unit is according to the linear relationship and the current exhaust gas temperature of known delivery temperature and running frequency, determining and institute
Current exhaust gas temperature running frequency in a linear relationship is stated to specifically include as the current operation frequency：According to described current
Linear relationship and the current exhaust gas temperature, determining and current exhaust gas temperature running frequency in a linear relationship, as institute
State current operation frequency.
9. circuit according to claim 6, which is characterized in that the indoor unit control circuit further includes having outdoor unit to power on
Control unit, for controlling powering on for outdoor unit；
And indoors after machine electrifying startup, the four-way valve control unit, VCU first carries out described according to present mode of operation control four-way
The process of valve, after the conducting direction control in place of the four-way valve, electric control unit controls outdoor unit again on the outdoor unit
It powers on.
10. the circuit according to any one of claim 6 to 9, which is characterized in that the indoor unit control circuit further includes
Have complete machine total working current detecting unit, for detecting the current total working electric current of complete machine, the indoor unit control circuit also according to
The current total working electric current executes complete machine protection process and/or outdoor unit breakdown judge process.
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| CN201810008206.7A CN108375257A (en) | 2018-01-04 | 2018-01-04 | Air-conditioner control method and control circuit |
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| CN201810008206.7A CN108375257A (en) | 2018-01-04 | 2018-01-04 | Air-conditioner control method and control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500831A (en) * | 2019-08-23 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment steady state operational control method, device, storage medium and system |
| CN113531676A (en) * | 2021-07-28 | 2021-10-22 | 珠海格力电器股份有限公司 | Air conditioner noise reduction control method and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113531676A (en) * | 2021-07-28 | 2021-10-22 | 珠海格力电器股份有限公司 | Air conditioner noise reduction control method and air conditioner |
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