CN108731224A - Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system - Google Patents
Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system Download PDFInfo
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- CN108731224A CN108731224A CN201811015686.6A CN201811015686A CN108731224A CN 108731224 A CN108731224 A CN 108731224A CN 201811015686 A CN201811015686 A CN 201811015686A CN 108731224 A CN108731224 A CN 108731224A
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- temperature
- air conditioner
- fixed frequency
- expansion valve
- heat exchanger
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using 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
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application proposes a kind of fixed frequency air conditioner system, the control method of fixed frequency air conditioner system, device, electronic equipment and storage medium, wherein method includes：When running in cooling mode, the inlet air temperature of indoor heat exchanger is detected；Obtain the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system；According to temperature gap, the aperture of electric expansion valve is adjusted, and controls being turned on or off for compressor.This method gets in the coolant quantity of heat exchanger by electronic expansion valve regulation, realizes the purpose for accurately controlling indoor temperature, maintains indoor temperature to stablize near set temperature, improves the comfort of user, avoid the frequent start-stop of compressor.
Description
Technical field
This application involves technical field of electric device control more particularly to a kind of controls of fixed frequency air conditioner system, fixed frequency air conditioner system
Method, apparatus, electronic equipment and storage medium processed.
Background technology
With the raising of air-conditioning popularity rate, people more widely adjust the temperature of indoor environment in life using air conditioner
Degree, to meet the hot-cool demand of user.
In the related technology, general using the method shut down up to temperature, i.e. air conditioner refrigerating shape for the refrigeration control of fixed frequency air conditioner
Under state, when room temperature reaches preset value less than the set temperature of air-conditioning, compressor is stopped, and air-conditioning stops refrigeration, when
When room temperature reaches preset value higher than the set temperature of air-conditioning, compressor starts work, air-conditioning continues to freeze.It is pressed by controlling
The startup and closing of contracting machine adjust indoor environment temperature.
However, it has been found that when the method by start/stop of compressor controls air-conditioning, fluctuations in indoor temperature is larger, environment
The sometimes hot and sometimes cold comfort for reducing user, meanwhile, the frequent start-stop of compressor can reduce the service life of air-conditioning and cause electricity
The waste of power resource.
Invention content
The application proposes a kind of fixed frequency air conditioner system, the control method of fixed frequency air conditioner system, device, electronic equipment and storage
Medium, this method adjust the opening value of electric expansion valve according to the inlet air temperature of indoor heat exchanger and the difference of set temperature, with
Control gets in the coolant quantity of heat exchanger, and when temperature gap is larger, user is larger to the refrigeration demand of air-conditioning, the work of air-conditioning
It is larger to make load, then electric expansion valve is closed, and refrigerant all flows into indoor heat exchanger and works as temperature quickly to reduce indoor temperature
When difference is smaller, according to the opening value of the intervals control electric expansion valve where temperature gap, the refrigerant of corresponding amount is made to flow into room
Interior heat exchanger maintains indoor temperature to stablize attached in set temperature to accurately control indoor temperature according to the refrigeration demand of user
Closely, the comfort for improving user avoids the wasting of resources caused by the frequent start-stop of compressor.
The application first aspect embodiment proposes a kind of control method of fixed frequency air conditioner system, including：
When running in cooling mode, the inlet air temperature of indoor heat exchanger is detected；
Obtain the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system；
According to temperature gap, the aperture of electric expansion valve is adjusted, and controls being turned on or off for compressor.
The application another aspect embodiment proposes a kind of control device of fixed frequency air conditioner system, including：
Acquisition module when for running in cooling mode, detects the inlet air temperature of the indoor heat exchanger；
Acquisition module, for obtaining the temperature difference between the inlet air temperature and the set temperature of the fixed frequency air conditioner system
Value；
Control module, for according to the temperature gap, adjusting the aperture of the electric expansion valve, and control the compression
Machine is turned on or off.
The application another aspect embodiment proposes a kind of fixed frequency air conditioner system, including compressor, outdoor heat exchanger, throttling
The circuit of element, electric expansion valve and indoor heat exchanger composition；The first end of the electric expansion valve access the compressor and
In the first pipeline between the outdoor heat exchanger, second end accesses between the outdoor heat exchanger and the indoor heat exchanger
In second pipeline, third end is directly accessed in the indoor heat exchanger, and the fixed frequency air conditioner system as described in above-described embodiment
Control device.
The application another aspect embodiment proposes a kind of electronic equipment, including processor and memory, wherein the place
Reason device is corresponding with the executable program code to run by reading the executable program code stored in the memory
Program, for realizing the control method of the fixed frequency air conditioner system described in above-described embodiment.
The application another aspect embodiment proposes a kind of non-transitorycomputer readable storage medium, is stored thereon with meter
Calculation machine program realizes the controlling party of the fixed frequency air conditioner system as described in above-mentioned one side embodiment when the program is executed by processor
Method.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages：
1, according to temperature gap, the aperture of electric expansion valve is adjusted, and controls being turned on or off for compressor.According to temperature
The opening value of difference adjusting electric expansion valve is spent to control the coolant quantity for getting in heat exchanger, to according to the refrigeration need of user
Refinement really controls indoor temperature, maintains indoor temperature to stablize the purpose near set temperature, improves the comfort of user, keep away
The wasting of resources caused by having exempted from the frequent start-stop of compressor.
2, when compressor is out of service, the temperature gap of continuous collecting inlet air temperature and set temperature, in temperature gap
When more than four temperature thresholds, statistics temperature gap is more than the duration of the 4th temperature threshold, if duration reaches in advance
If duration threshold value, then reopen compressor.Compressor is reopened when indoor temperature meets compressor unlocking condition, with
Meet the refrigeration demand of user, while opening compressor after preset duration and avoiding frequent start-stop compressor and reduce making for air-conditioning
Use the service life.
3, in the first pipeline between the first end access compressor and outdoor heat exchanger of electric expansion valve, refrigerant can be through
Cross the condenser input pipe that electric expansion valve flows to outdoor heat exchanger.When the temperature gap of inlet air temperature and set temperature is smaller
When, in order to avoid indoor temperature is too low, electronic expansion valve opening increases, and the condenser that extra refrigerant flows to outdoor heat exchanger is defeated
Enter pipe, to reduce the operating load of outdoor heat exchanger, while electric energy can be saved.
The additional aspect of the application and advantage will be set forth in part in the description, and will partly become from the following description
It obtains obviously, or recognized by the practice of the application.
Description of the drawings
The application is above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is a kind of structural schematic diagram of fixed frequency air conditioner system provided by the embodiments of the present application；
Fig. 2 is a kind of flow diagram of the control method of fixed frequency air conditioner system provided by the embodiments of the present application；
A kind of Fig. 3 flow diagrams of the control method of specific fixed frequency air conditioner system provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of the regulating device of air-conditioning provided by the embodiments of the present application；
Fig. 5 is a kind of another structural schematic diagram of fixed frequency air conditioner system provided by the embodiments of the present application；And
Fig. 6 is the structural schematic diagram for a kind of electronic equipment that the embodiment of the present application proposes.
Specific implementation mode
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the application, and should not be understood as the limitation to the application.
The embodiment of the present application, for the refrigeration control of fixed frequency air conditioner, is shut down mainly in the related technology when using up to temperature
Method, i.e., under air conditioner refrigerating state, when room temperature less than air-conditioning set temperature reach preset value when, compressor stop work
To make, air-conditioning stops refrigeration, when room temperature reaches preset value higher than the set temperature of air-conditioning, compressor starts work, air-conditioning
When continuing refrigeration, fluctuations in indoor temperature is larger, environment is sometimes hot and sometimes cold affect user experience the technical issues of, alternatively, adopting
With the compressor of double compression chambers, when the unlatching by controlling compressor compresses chamber adjusts the method for coolant quantity, implementation cost is higher,
The technical problem for causing rate-determining steps cumbersome and at the same time two compression chambers of control work.
The control method of the fixed frequency air conditioner system of the embodiment of the present application, the inlet air temperature and setting according to indoor heat exchanger
The difference of temperature adjusts the opening value of electric expansion valve, the coolant quantity of heat exchanger is got in control, when temperature gap is larger
When, user is larger to the refrigeration demand of air-conditioning, and the live load of air-conditioning is larger, then electric expansion valve is closed, and refrigerant all flows into
Indoor heat exchanger, quickly to reduce indoor temperature, when temperature gap is smaller, according to the intervals control electronics where temperature gap
The opening value of expansion valve makes the refrigerant of corresponding amount flow into indoor heat exchanger, to accurately control room according to the refrigeration demand of user
Interior temperature maintains indoor temperature to stablize near set temperature, improves the comfort of user, avoids frequently opening for compressor
The wasting of resources caused by stopping.
Below with reference to the accompanying drawings the fixed frequency air conditioner system of the embodiment of the present application, the control method of fixed frequency air conditioner system, dress are described
It sets and electronic equipment.
Wherein, the control method of the fixed frequency air conditioner system of the embodiment of the present application can be determined by what the embodiment of the present application proposed
The control device of frequency air-conditioning system executes, and the control device of the fixed frequency air conditioner system can be only fitted in fixed frequency air conditioner system, uses
In control of the realization to fixed frequency air conditioner system.
Wherein, as shown in Figure 1, the fixed frequency air conditioner system includes compressor 10, outdoor heat exchanger 20, restricting element 30, electricity
The circuit that sub- expansion valve 40 and indoor heat exchanger 50 form, wherein the first end access compressor 10 of electric expansion valve 40 and room
In the first pipeline between external heat exchanger 20, second end accesses the second pipeline between outdoor heat exchanger 20 and indoor heat exchanger 50
In, third end is directly accessed in indoor heat exchanger 50.Wherein, as an example, electric expansion valve 40 can be thermal expansion
Valve, the control device of fixed frequency air conditioner system can adjust the opening value of heating power expansion valve, to control through the cold of heating power expansion valve
Matchmaker's flow.As another example, restricting element can be capillary, and capillary is in fixed frequency air conditioner system for adjusting refrigeration
Refrigerant can be cooled down and be depressurized so that refrigerant absorbs and gives off heat by the device of matchmaker's flow.
Fig. 2 is a kind of flow diagram of the control method of fixed frequency air conditioner system provided by the embodiments of the present application.
As shown in Fig. 2, the control method of the fixed frequency air conditioner system includes the following steps：
Step 101, when running in cooling mode, the inlet air temperature of indoor heat exchanger is detected.
Specifically, when user's control operation of air conditioner in cooling mode when, the temperature on indoor heat exchanger air inlet position
Sensor detects the inlet air temperature of indoor heat exchanger, and the inlet air temperature of collected indoor heat exchanger is sent to fixed frequency air conditioner
The control device of system, wherein since the inlet air temperature of indoor heat exchanger is that the room air detected flows into indoor heat exchanger
Temperature, inlet air temperature is closer to indoor environment temperature, can reflect indoor environment temperature by inlet air temperature.Into one
Step, it can be in room as a kind of possible realization method in order to improve the accuracy of inlet air temperature of detection indoor heat exchanger
Temperature sensor is set on the different location of interior heat exchanger air inlet, takes the average value of the collected data of each temperature sensor to be
The inlet air temperature of indoor heat exchanger, alternatively, it is the inlet air temperature of indoor heat exchanger to take the temperature that the frequency of occurrences is most in each data.
Step 102, the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system is obtained.
Specifically, the control device of fixed frequency air conditioner system setting the inlet air temperature of the indoor heat exchanger detected and air-conditioning
Constant temperature degree makes the difference, to obtain the temperature gap between the inlet air temperature of indoor heat exchanger and the set temperature of fixed frequency air conditioner system.
Wherein, the temperature gap between inlet air temperature and set temperature can reflect the refrigerating capacity of air-conditioning output and indoor required refrigeration
Match condition between amount.
If being appreciated that, inlet air temperature is more than set temperature, when the difference between inlet air temperature and set temperature is larger,
The refrigerating capacity of air-conditioning is much smaller than indoor required refrigerating capacity, and indoor temperature is higher, therefore user is larger to the refrigeration capacity requirement of air-conditioning,
Air-conditioning is larger to the live load of indoor refrigeration, when the difference between inlet air temperature and set temperature is smaller, air-conditioning output
Refrigerating capacity is more matched with indoor required refrigerating capacity, and user is smaller to the refrigeration capacity requirement of air-conditioning, and air-conditioning can be with lower
Live load is to indoor refrigeration.
For example, when the set temperature of air-conditioning is 24 DEG C, if inlet air temperature is 28 DEG C, temperature gap is 4 DEG C, shows room
Interior temperature is higher, and user feels more hot and then larger to the refrigeration capacity requirement of air-conditioning, if inlet air temperature is 25 DEG C, temperature
It is 1 DEG C to spend difference, shows indoor temperature close to user's set temperature, the refrigerating capacity of air-conditioning substantially meets indoor required refrigeration
Amount, therefore user is smaller to the further refrigeration demand of air-conditioning.
If inlet air temperature is less than set temperature, difference between inlet air temperature and set temperature is negative value, when into wind-warm syndrome
When spending smaller difference between set temperature, show that the refrigerating capacity of air-conditioning is more than indoor required refrigerating capacity, indoor temperature compared with
It is low, therefore user needs the refrigerating capacity that air-conditioning is greatly decreased, and when the difference between inlet air temperature and set temperature is larger, show
The refrigerating capacity of air-conditioning output is more matched with indoor required refrigerating capacity, and user can suitably reduce refrigerating capacity or the holding of air-conditioning
Current refrigerating capacity.For example, when air-conditioning set temperature is 26 DEG C, if inlet air temperature is 23 DEG C, temperature gap is -3 DEG C, empty
Current refrigerating capacity is adjusted to be more than the refrigerating capacity needed for user, user needs to reduce the refrigerating capacity of air-conditioning；If inlet air temperature is 25.5
DEG C, then temperature gap is -0.5 DEG C, shows that the refrigerating capacity of air-conditioning output is more matched with indoor required refrigerating capacity.
To obtain the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system, be convenient for next step root
Fixed frequency air conditioner system is controlled according to temperature gap.
Step 103, according to temperature gap, the aperture of electric expansion valve is adjusted, and controls being turned on or off for compressor.
Specifically, as shown in Figure 1, refrigerant is after compressor enters outdoor heat exchanger cooling, into restricting element and quilt
Be divided into two-way circulation, wherein be directly entered all the way in indoor heat exchanger to indoor refrigeration, another way by the second pipeline into
Enter in electric expansion valve, then can control refrigerant according to the aperture of electric expansion valve flows to indoor heat exchanger or by first
Pipeline flows to the coolant quantity of the condenser input pipe of outdoor heat exchanger.It, can according to temperature gap also, by above-mentioned steps 102
It, therefore, can be according to temperature gap, in regulation room to judge whether the refrigerating capacity of air-conditioning output meets indoor refrigeration demand
Environment temperature.It specifically, can be according to the size of temperature gap, to determine the opening size of electric expansion valve, to control entrance
The coolant quantity of indoor heat exchanger, and the start and stop state of compressor is controlled, realization is accurately controlled indoor environment temperature.Meanwhile it is more
Remaining refrigerant flows to the condenser input pipe of outdoor heat exchanger, to reduce the operating load of outdoor heat exchanger, while can save
Electric energy.
In the embodiment of the present invention, electric expansion valve is adjusted according to the difference of the inlet air temperature of indoor heat exchanger and set temperature
Opening value, the coolant quantity of heat exchanger is got in control, so as to accurately control indoor temperature, maintains indoor temperature steady
It is scheduled near set temperature, improves the comfort of user, avoid the wasting of resources caused by the frequent start-stop of compressor.
In order to more clearly describe to adjust the detailed process of the aperture of electric expansion valve according to temperature gap, the application carries
A kind of control method of specific fixed frequency air conditioner system, a kind of Fig. 3 specific fixed frequency air conditioners provided by the embodiments of the present application are gone out
The flow diagram of the control method of system.As shown in figure 3, this method includes：
Step 201, temperature gap is compared with the temperature range that preset temperature threshold is constituted, temperature difference
Residing target temperature section.
Specifically, first passing through many experiments in advance can determine that required refrigerating capacity under different temperatures difference and air-conditioning are defeated
Mismatched degree between the refrigerating capacity gone out can select multiple temperature according to mismatched degree from multiple temperature gaps
Threshold value constitutes each temperature range using the temperature threshold selected.
For example, when temperature gap is when within 1 DEG C, between the refrigerating capacity and required refrigerating capacity of air-conditioning output not
Matching degree is smaller, illustrates the refrigeration demand that the refrigerating capacity of air-conditioning output substantially meets user to air-conditioning, user is to air-conditioning at this time
Refrigeration demand it is smaller.Between refrigerating capacity and required refrigerating capacity that when temperature gap is at 1 DEG C to 2 DEG C, air-conditioning exports not
It is moderate with degree, illustrate that the refrigerating capacity of air-conditioning output has begun the refrigeration demand that cannot meet user to air-conditioning, but gap
Smaller, user is smaller to the refrigeration demand of air-conditioning at this time.When temperature difference is more than 2 DEG C, air-conditioning output refrigerating capacity with it is required
Mismatched degree between refrigerating capacity is larger, illustrates the refrigeration that the refrigerating capacity of air-conditioning output is largely unable to user to air-conditioning
Demand, and gap is larger, and user is larger to the refrigeration demand of air-conditioning at this time.
In this example, can be that preset temperature threshold makes up less than 1 DEG C, 1 DEG C to 2 DEG C and more than 2 with 1 DEG C and 2 DEG C
DEG C three temperature ranges, temperature gap is compared with the temperature threshold of above three temperature range, it is poor with temperature
The residing target temperature section of value, and then can determine the refrigeration demand of user.
Step 202, according to target temperature section, the target aperture of electric expansion valve is determined, and according to target aperture to electricity
The aperture of sub- expansion valve is adjusted, and controls being turned on and off for compressor.
Specifically, the refrigeration demand according to user under different temperatures section, it is swollen with electronics to pre-set each temperature range
The mapping relations of swollen valve opening value, the target temperature section residing for determining temperature gap match corresponding electronic expansion
The target aperture of valve, when temperature gap is larger, electronic expansion valve opening is smaller or closes, to by a large amount of refrigerant into entering the room
Interior heat exchanger, when temperature gap is smaller, electronic expansion valve opening is larger, to reduce the coolant quantity for getting in heat exchanger.
As an example, according to the refrigeration demand under user's different temperatures difference, the first temperature threshold, the are chosen in advance
Two temperature thresholds and third temperature threshold, wherein the first temperature threshold is more than second temperature threshold value, and second temperature threshold value is more than the
Three temperature thresholds, to above three temperature threshold constituted the first temperature range, second temperature section, third temperature range and
4th temperature range, wherein the first temperature range include the first temperature threshold, second temperature section include the first temperature threshold and
Second temperature threshold value, third temperature range include second temperature threshold value and third temperature threshold, and the 4th temperature range includes third
Temperature threshold.Then, above-mentioned temperature range and electronic expansion valve opening is arranged in the refrigeration demand according to user under different sections
The mapping relations of value.
Further, temperature gap is compared with the temperature range in each section, the target residing for temperature difference
Temperature range.
When target temperature section is the first temperature range, the refrigeration demand of user is larger, to control electric expansion valve
It closes, and controls compressor normal operation, indoor heat exchanger is flowed into the whole refrigerant of control, reduces rapidly indoor temperature.
When target temperature section is second temperature section, the refrigeration demand of user, which is less than the first temperature range volume refrigeration, to be needed
It asks, the aperture to control electric expansion valve is the first opening value, and controls compressor normal operation, is changed with reducing to get in
The coolant quantity of hot device.
When target temperature section is third temperature range, the refrigeration demand of user is smaller, to control electric expansion valve
Aperture be the second opening value, and control compressor normal operation.Wherein, the second opening value is more than the first opening value, with into one
Step reduces the coolant quantity for getting in heat exchanger.
When target temperature section is four temperature range, the current refrigerating capacity of air-conditioning is met the needs of users, to control
Electric expansion valve processed is closed, and controls that compressor is out of service, and avoiding air-conditioning from excessively freezing causes indoor temperature too low.Wherein,
When compressor is out of service, the control device control indoor heat exchanger of fixed frequency air conditioner system is in air supply pattern or closing,
To maintain current indoor temperature.Further, when air-conditioning stops freezing, being influenced indoor temperature by ambient temperature may
Rise, it is fixed when compressor is out of service as a kind of possible realization method in order to persistently meet the refrigeration demand of user
The temperature gap of control device the continuous collecting indoor heat exchanger inlet air temperature and set temperature of frequency air-conditioning system, in temperature gap
When more than four temperature thresholds, statistics temperature gap is more than the duration of the 4th temperature threshold, if duration reaches in advance
If duration threshold value, then reopen compressor.Wherein, the 4th temperature threshold, which is pre-set user, has refrigeration demand
Temperature gap, to reopen compressor when user has refrigeration demand again, persistently to meet the refrigeration demand of user,
It is then turned on compressor after preset duration simultaneously, the service life of air-conditioning can be reduced to avoid frequent start-stop compressor.
In conclusion the control method of the fixed frequency air conditioner system of the embodiment of the present application, when running in cooling mode first,
The inlet air temperature of indoor heat exchanger is detected, the temperature difference between inlet air temperature and the set temperature of fixed frequency air conditioner system is then obtained
Value, finally according to temperature gap, adjusts the aperture of electric expansion valve, and control being turned on or off for compressor.This method root
The opening value that electric expansion valve is adjusted according to the inlet air temperature of indoor heat exchanger and the difference of set temperature, is got in control and is changed
The coolant quantity of hot device, when temperature gap is larger, user is larger to the refrigeration demand of air-conditioning, and the live load of air-conditioning is larger, then
Electric expansion valve is closed, and refrigerant all flows into indoor heat exchanger, quickly to reduce indoor temperature, when temperature gap is smaller, and root
According to the opening value of the intervals control electric expansion valve where temperature gap, the refrigerant of corresponding amount is made to flow into indoor heat exchanger, to
Indoor temperature is accurately controlled according to the refrigeration demand of user, maintains indoor temperature to stablize near set temperature, improves user
Comfort, avoid the wasting of resources caused by the frequent start-stop of compressor.
In order to more clearly describe above-mentioned fixed frequency air conditioner system control method realization process, it is specific with one below
Embodiment be described.
It is temperature threshold to pre-set 2 DEG C, 1 DEG C and 0 DEG C, and then constitutes four temperature ranges, and pre-sets each temperature
The mapping relations in section and electronic expansion valve opening value.When the set temperature of air-conditioning in cooling mode is 24 degrees Celsius, if
When indoor heat exchanger inlet air temperature is 30 degrees Celsius, indoor temperature is higher, and the refrigeration demand of user is larger, to fixed frequency air conditioner system
The control device control heating power expansion valve of system is closed, and controls compressor operating, and air-conditioning freezes, and is down to 25.5 when temperature and takes the photograph
When family name spends, to reduce air conditioner refrigerating amount, heating power expansion valve aperture regulation is 30%, and keeps compressor operating, when temperature is down to
At 24.5 degrees Celsius, heating power expansion valve aperture regulation is 60%, and compressor continues to run with, when temperature is down to 23.5 degrees Celsius,
Indoor heat exchanger inlet air temperature meets the refrigeration demand of user, then controls compressor closing, and indoor heat exchanger is transported with air supply pattern
Row, after compressor is closed, the control device of fixed frequency air conditioner system acquires indoor heat exchanger inlet air temperature by temperature sensor
With the temperature gap of set temperature, after inlet air temperature rises to 25 DEG C and continues one minute, control compressor reopens.
In order to realize that above-described embodiment, the embodiment of the present application also propose a kind of control device of fixed frequency air conditioner system, wherein
Fixed frequency air conditioner system includes：The circuit of compressor, outdoor heat exchanger, restricting element, electric expansion valve and indoor heat exchanger composition；
In the first pipeline between the first end access compressor and outdoor heat exchanger of electric expansion valve, second end accesses outdoor heat exchanger
In the second pipeline between indoor heat exchanger, third end is directly accessed in indoor heat exchanger.Fig. 4 provides for the embodiment of the present application
A kind of fixed frequency air conditioner system control device structural schematic diagram.
As shown in figure 4, the control device of the fixed frequency air conditioner system includes：Acquisition module 100, acquisition module 200 and control
Module 300.
Wherein, the inlet air temperature of indoor heat exchanger when for running in cooling mode, is detected in acquisition module 100.
Acquisition module 200, for obtaining the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system.
Control module 300, for according to temperature gap, adjusting the aperture of electric expansion valve, and control the unlatching of compressor
Or it closes.
In a kind of possible realization method of the embodiment of the present application, control module 300, specifically for by temperature gap and in advance
If temperature threshold constitute temperature range be compared, the target temperature section residing for temperature difference, then according to mesh
Temperature range is marked, determines the target aperture of electric expansion valve, and controls and the aperture of electric expansion valve is carried out according to target aperture
Adjustment.
Specifically, control module 300 is additionally operable to, when target temperature section is the first temperature range, control electric expansion valve
It closes, and controls compressor normal operation, wherein the first temperature range includes the first temperature threshold；When target temperature section is
When second temperature section, the aperture for controlling electric expansion valve is the first opening value, and controls compressor normal operation, wherein the
Two temperature ranges include the first temperature threshold and second temperature threshold value, wherein second temperature threshold value is less than the first temperature threshold；When
When target temperature section is third temperature range, the aperture for controlling electric expansion valve is the second opening value, and controls compressor just
Often operation, wherein third temperature range includes second temperature threshold value and third temperature threshold, wherein third temperature threshold is less than
Second temperature threshold value；When target temperature section is four temperature range, the closing of electric expansion valve is controlled, and control compressor
It is out of service, wherein third temperature range includes third temperature threshold.
In a kind of possible realization method of the embodiment of the present application, control module 300 is additionally operable to when compressor is out of service
When, control indoor heat exchanger is in air supply pattern or closing.
Further, when control module 300, continuous collecting inlet air temperature and setting when compressor is out of service are additionally operable to
The temperature gap of temperature, when temperature gap is more than four temperature thresholds, statistics temperature gap is more than holding for the 4th temperature threshold
Continuous duration reopens compressor if duration reaches preset duration threshold value.
It should be noted that the explanation of the aforementioned control method embodiment to fixed frequency air conditioner system, is also applied for this
The control device of the fixed frequency air conditioner system of embodiment, therefore details are not described herein.
The control device of the fixed frequency air conditioner system of the embodiment of the present application, when running in cooling mode first, detection is indoor
Then the inlet air temperature of heat exchanger obtains the temperature gap between inlet air temperature and the set temperature of fixed frequency air conditioner system, finally
According to temperature gap, the aperture of electric expansion valve is adjusted, and controls being turned on or off for compressor.The device is changed according to interior
The inlet air temperature of hot device and the difference of set temperature adjust the opening value of electric expansion valve, and the cold of heat exchanger is got in control
Matchmaker measures, and when temperature gap is larger, air-conditioning work load is larger, and electric expansion valve is closed, and refrigerant all flows into indoor heat exchanger,
Quickly to reduce indoor temperature, when temperature gap is smaller, according to opening for the intervals control electric expansion valve where temperature gap
Angle value, makes the refrigerant of corresponding amount flow into indoor heat exchanger, accurately controls indoor temperature to realize, indoor temperature is maintained to stablize
Purpose near set temperature improves the comfort of user, avoids the wasting of resources caused by the frequent start-stop of compressor.
In order to realize that above-described embodiment, the embodiment of the present application also propose a kind of fixed frequency air conditioner system.The fixed frequency air conditioner system
For air-conditioning system as shown in Figure 1, as shown in figure 5, the fixed frequency air conditioner system include not only compressor 10, outdoor heat exchanger 20,
Restricting element 30, electric expansion valve 40 and indoor heat exchanger 50, further including the fixed frequency air conditioner system as described in above-described embodiment
Control device 60.Wherein, which connect with compressor 10 and electric expansion valve 40 respectively, for 10 He of compressor
Electric expansion valve 40 is controlled according to the control method in above-described embodiment.
In order to realize that above-described embodiment, the present invention also propose a kind of electronic equipment.
Fig. 6 is the structural schematic diagram for a kind of electronic equipment that one embodiment of the application proposes.As shown in fig. 6, the electronics is set
Standby 120 include：Processor 121 and memory 122；Memory 122 is for storing executable program code；Processor 121 passes through
The executable program code that stores is read in memory 122 to run program corresponding with executable program code, for realizing
The control method of fixed frequency air conditioner system as described in above-described embodiment.
In order to realize that above-described embodiment, the embodiment of the present application also propose a kind of non-transitorycomputer readable storage medium,
It is stored thereon with computer program, is realized when which is executed by processor and determines frequency sky as described in above-mentioned either side embodiment
The control method of adjusting system.
In the description of this specification, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic.The spy of " first ", " second " is defined as a result,
Sign can explicitly or implicitly include at least one of the features.In the description of the present application, the meaning of " plurality " is at least two
It is a, such as two, three etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, include according to involved function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (system of such as computer based system including processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or passing
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.Such as, if realized in another embodiment with hardware, following skill well known in the art can be used
Any one of art or their combination are realized：With for data-signal realize logic function logic gates from
Logic circuit is dissipated, the application-specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, which includes the steps that one or a combination set of embodiment of the method when being executed.
In addition, each functional unit in each embodiment of the application can be integrated in a processing module, it can also
That each unit physically exists alone, can also two or more units be integrated in a module.Above-mentioned integrated mould
The form that hardware had both may be used in block is realized, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and when sold or used as an independent product, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
Embodiments herein is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as the limit to the application
System, those skilled in the art can be changed above-described embodiment, change, replace and become within the scope of application
Type.
Claims (15)
1. a kind of control method of fixed frequency air conditioner system, which is characterized in that the fixed frequency air conditioner system includes：Compressor, outdoor
The circuit of heat exchanger, restricting element, electric expansion valve and indoor heat exchanger composition；The first end of the electric expansion valve accesses institute
It states in the first pipeline between compressor and the outdoor heat exchanger, second end accesses the outdoor heat exchanger and changed with the interior
In the second pipeline between hot device, third end is directly accessed in the indoor heat exchanger；
It the described method comprises the following steps：
When running in cooling mode, the inlet air temperature of the indoor heat exchanger is detected；
Obtain the temperature gap between the inlet air temperature and the set temperature of the fixed frequency air conditioner system；
According to the temperature gap, the aperture of the electric expansion valve is adjusted, and controls being turned on or off for the compressor.
2. the control method of fixed frequency air conditioner system according to claim 1, which is characterized in that described according to the temperature difference
Value, adjusts the aperture of the electric expansion valve, including：
The temperature gap is compared with the temperature range that preset temperature threshold is constituted, is determined residing for the temperature gap
Target temperature section；
According to the target temperature section, the target aperture of the electric expansion valve is determined, and according to the target aperture to institute
The aperture for stating electric expansion valve is adjusted.
3. the control method of fixed frequency air conditioner system according to claim 2, which is characterized in that further include：
When the target temperature section is the first temperature range, controls the electric expansion valve and close, and control the compression
Machine normal operation；Wherein, first temperature range includes the first temperature threshold；
When the target temperature section is second temperature section, the aperture for controlling the electric expansion valve is the first opening value,
And control the compressor normal operation；Wherein, the second temperature section includes first temperature threshold and second temperature
Threshold value, wherein the second temperature threshold value is less than first temperature threshold；
When the target temperature section is third temperature range, the aperture for controlling the electric expansion valve is the second opening value,
And control the compressor normal operation；Wherein, the third temperature range includes the second temperature threshold value and third temperature
Threshold value, wherein the third temperature threshold is less than the second temperature threshold value；
When the target temperature section is four temperature range, the closing of the electric expansion valve is controlled, and control the pressure
Contracting machine is out of service；Wherein, the 4th temperature range includes the third temperature threshold.
4. the control method of fixed frequency air conditioner system according to claim 3, which is characterized in that further include：
When the compressor is out of service, controls the indoor heat exchanger and be in air supply pattern or closing.
5. the control method of fixed frequency air conditioner system according to claim 3, which is characterized in that further include：
When the compressor is out of service, the temperature gap of inlet air temperature and the set temperature described in continuous collecting；
When the temperature gap is more than four temperature thresholds, the temperature gap holding more than the 4th temperature threshold is counted
Continuous duration reopens the compressor if the duration reaches preset duration threshold value.
6. a kind of control device of fixed frequency air conditioner system, which is characterized in that the fixed frequency air conditioner system includes：Compressor, outdoor
The circuit of heat exchanger, restricting element, electric expansion valve and indoor heat exchanger composition；The first end of the electric expansion valve accesses institute
It states in the first pipeline between compressor and the outdoor heat exchanger, second end accesses the outdoor heat exchanger and changed with the interior
In the second pipeline between hot device, third end is directly accessed in the indoor heat exchanger；
The control device of the fixed frequency air conditioner system, including：
Acquisition module when for running in cooling mode, detects the inlet air temperature of the indoor heat exchanger；
Acquisition module, for obtaining the temperature gap between the inlet air temperature and the set temperature of the fixed frequency air conditioner system；
Control module, for according to the temperature gap, adjusting the aperture of the electric expansion valve, and control the compressor
It is turned on or off.
7. the control device of fixed frequency air conditioner system according to claim 6, which is characterized in that the control module, specifically
For：
The temperature gap is compared with the temperature range that preset temperature threshold is constituted, is determined residing for the temperature gap
Target temperature section；
According to the target temperature section, the target aperture of the electric expansion valve is determined, and control according to the target aperture
The aperture of the electric expansion valve is adjusted.
8. the control device of fixed frequency air conditioner system according to claim 7, which is characterized in that the control module is also used
In：
When the target temperature section is the first temperature range, controls the electric expansion valve and close, and control the compression
Machine normal operation；Wherein, first temperature range includes the first temperature threshold；
When the target temperature section is second temperature section, the aperture for controlling the electric expansion valve is the first opening value,
And control the compressor normal operation；Wherein, the second temperature section includes first temperature threshold and second temperature
Threshold value, wherein the second temperature threshold value is less than first temperature threshold；
When the target temperature section is third temperature range, the aperture for controlling the electric expansion valve is the second opening value,
And control the compressor normal operation；Wherein, the third temperature range includes the second temperature threshold value and third temperature
Threshold value, wherein the third temperature threshold is less than the second temperature threshold value；
When the target temperature section is four temperature range, the closing of the electric expansion valve is controlled, and control the pressure
Contracting machine is out of service；Wherein, the third temperature range includes the third temperature threshold.
9. the control device of fixed frequency air conditioner system according to claim 8, which is characterized in that the control module is also used
In：
When the compressor is out of service, controls the indoor heat exchanger and be in air supply pattern or closing.
10. the control device of fixed frequency air conditioner system according to claim 8, which is characterized in that the control module is also used
In：
When the compressor is out of service, the temperature gap of inlet air temperature and the set temperature described in continuous collecting；
When the temperature gap is more than four temperature thresholds, the temperature gap holding more than the 4th temperature threshold is counted
Continuous duration reopens the compressor if the duration reaches preset duration threshold value.
11. a kind of fixed frequency air conditioner system, which is characterized in that including：Compressor, outdoor heat exchanger, restricting element, electric expansion valve
With the circuit of indoor heat exchanger composition；The first end of the electric expansion valve access the compressor and the outdoor heat exchanger it
Between the first pipeline in, second end accesses in the second pipeline between the outdoor heat exchanger and the indoor heat exchanger, third
End is directly accessed in the indoor heat exchanger, and as the control of claim 6-10 any one of them fixed frequency air conditioner systems fills
It sets.
12. fixed frequency air conditioner system according to claim 11, which is characterized in that the electric expansion valve is thermal expansion
Valve.
13. fixed frequency air conditioner system according to claim 11, which is characterized in that the restricting element is capillary.
14. a kind of electronic equipment, which is characterized in that including memory, processor；
Wherein, the processor can perform to run with described by reading the executable program code stored in the memory
The corresponding program of program code, for realizing the control method of the fixed frequency air conditioner system as described in any in claim 1-5.
15. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program
The control method of the fixed frequency air conditioner system as described in any in claim 1-5 is realized when being executed by processor.
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| CN201811015686.6A CN108731224B (en) | 2018-08-31 | 2018-08-31 | Control method, device and equipment of fixed-frequency air conditioning system and fixed-frequency air conditioning system |
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