CN106524549A - Constant-frequency air conditioning system and control method thereof - Google Patents
Constant-frequency air conditioning system and control method thereof Download PDFInfo
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- CN106524549A CN106524549A CN201611096472.7A CN201611096472A CN106524549A CN 106524549 A CN106524549 A CN 106524549A CN 201611096472 A CN201611096472 A CN 201611096472A CN 106524549 A CN106524549 A CN 106524549A
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
-
- 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
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of an air conditioner and discloses a constant-frequency air conditioning system and a control method thereof. In the constant-frequency air conditioning system, a compressor is set to comprise two compression chambers which can be opened independently or opened simultaneously; the compressor is also provided with a data acquisition module used for acquiring an indoor temperature and a set temperature in real time; by adopting the constant-frequency air conditioning system, cold output or heat output can be automatically adjusted according to thermal load demands so that influences, on comfort, of the indoor temperature affected by frequent start and shutdown can be prevented; and meanwhile, compared with a variable-frequency air conditioner, the constant-frequency air conditioning system is greatly lowered in design cost and is greatly improved in comfort. According to the control method of the constant-frequency air conditioning system provided by the invention, air conditioning load is determined according to an absolute value of the difference value of the indoor temperature and the set temperature, the difference value is divided into different ranges, and the compressor adopts different output combination in different range states so as to work at different output power; and in a working process of the air conditioner, the indoor temperature fluctuation is small and the use comfort is high.
Description
Technical field
The present invention relates to air-conditioner technical field, more particularly to a kind of fixed frequency air conditioner system and its control method.
Background technology
Traditional fixed frequency air conditioner system only has on an off two states, under refrigerating state, the cold mistake that air conditioning system is provided
When many, compressor shutdown；After indoor temperature exceedes design temperature, compressor is opened, by continually stopping and starting compressor
Realize adjusting.It not is to open the state exactly closed that i.e. the compressor of fixed frequency air conditioner system is in, it is impossible to by the change spirit of thermic load
Living to adjust, it is larger that frequent start-stop can cause room temperature to fluctuate, and sometimes hot and sometimes cold, comfort is poor.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is：Realize adjusting by frequent stop and start compressor to solve fixed frequency air conditioner system
Cold is exported, and causes fluctuations in indoor temperature big, the problem of comfort difference.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of fixed frequency air conditioner system, including：By compressor, condensation
Device, restricting element, the refrigeration of vaporizer composition heat loop；The compressor include can and meanwhile open or individually open
One compression chamber and the second compression chamber, first compression chamber, the entrance of the second compression chamber are respectively equipped with and are electrically connected with ECU
The first valve and the second valve；The ECU is also associated with for gathering the design temperature of indoor temperature and air conditioning system
Data acquisition module.
Wherein, the restricting element is the temperature-sensitive at heating power expansion valve, the heating power expansion valve and the evaporator outlet
Bag connection, so that the coolant quantity into the vaporizer is adjusted according to the coolant degree of superheat of evaporator outlet.
Wherein, the restricting element is electric expansion valve.
Wherein, the restricting element is capillary tube.
Wherein, volume of the volume of first compression chamber more than second compression chamber.
Present invention also offers a kind of control method of fixed frequency air conditioner system as described above, comprises the following steps：
In fixed frequency air conditioner system operation, current indoor temperature Tr is with design temperature Ts and is compared for acquisition：
If | Tr-Ts | is ＞ Ta, the first valve, the second valve are opened, compressor operating；
If Ta >=| Tr-Ts | ＞ Tb, the first valve is opened, the second valve closing, compressor operating；
If Tb >=| Tr-Ts | ＞ Tc, the first valve closing, the second valve are opened, compressor operating；
If Tc >=| Tr-Ts |, the first valve, the second valve are turned off, and compressor does not run.
Wherein, in the compressor under running status, when Tc >=| Tr-Ts | sets up, and after persistent period t1, then close
Close the compressor.
Wherein, in the compressor under run-stopping status, when | Tr-Ts | ＞ Tc set up, and after continuing the t2 times,
Start the compressor.
(3) beneficial effect
Above-mentioned technical proposal has the advantage that：A kind of fixed frequency air conditioner system that the present invention is provided, in existing fixed frequency air conditioner
On the basis of system, by compressor be configured with two individually can open or while open compression chamber, while arrange data
Acquisition module Real-time Collection indoor temperature and design temperature；The program can be defeated according to thermal load demands adjust automatically cold or heat
Output, it is to avoid room temperature is affected comfortableness by the machine of frequently switching on；Meanwhile, transducer air conditioning significantly drops design cost on year-on-year basis
Low, air-conditioner with fixed frequency comfortableness is greatly improved on year-on-year basis.
A kind of control method of fixed frequency air conditioner system that the present invention is provided, which is according to indoor temperature and the difference of design temperature
Absolute value determines air conditioner load, and the difference is divided into different interval ranges, and under different state of section, compressor is not using
Same output combination, so as to the purpose for realizing working with different output power；During air-conditioning work, fluctuations in indoor temperature is little, makes
It is high with comfort level；Temperature reduces compressor shutdown frequency, protection close to or up compressor is turned off after design temperature indoors
Compressor.
Description of the drawings
Fig. 1 is the structural representation of fixed frequency air conditioner system of the present invention；
Fig. 2 is the control flow chart of fixed frequency air conditioner system control method of the present invention.
Wherein, 1, compressor；11st, the first valve；12nd, the second valve；2nd, condenser；3rd, heating power expansion valve；4th, vaporizer；
5th, temperature-sensitive bag.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is for illustrating the present invention, but is not limited to the scope of the present invention.
In describing the invention, it should be noted that unless otherwise stated, " more than " scope include this number, it is " many
It is individual " it is meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ",
The orientation or position relationship of instructions such as " afterbodys " is, based on orientation shown in the drawings or position relationship, to be for only for ease of description originally
Description is invented and simplified, rather than is indicated or is implied that the device or element of indication must be with specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used
In description purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ",
" being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect
Connect；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.It is right
For one of ordinary skill in the art, visual concrete condition understands above-mentioned term concrete meaning in the present invention.
Embodiment one：
As shown in figure 1, the invention provides a kind of fixed frequency air conditioner system, including：By compressor 1, cross valve, condenser 2,
Restricting element, the refrigeration of the composition of vaporizer 4 heat loop；The compressor 1 include can and meanwhile open or individually open
One compression chamber and the second compression chamber, first compression chamber, the entrance of the second compression chamber are respectively equipped with and are electrically connected with ECU
The first valve 11 and the second valve 12；The ECU is also associated with for gathering the setting of indoor temperature and air conditioning system
The data acquisition module of temperature.Compressor 1 has two compression chambers that can be opened simultaneously or individually open, two compression chambers point
Its opening is not controlled by the first switch and second switch of its porch, the first valve 11 is opened, and the first compression chamber is opened
Dynamic, the first valve 11 is closed, and the first compression chamber is closed；The control planning of the second valve 12 and the second compression chamber is also.
ECU can determine the current load of air-conditioning according to the difference of indoor temperature and design temperature, then current according to air-conditioning
Actual load adjusts the on off state of two compression chambers：When load is bigger than normal, two compression chambers are opened simultaneously；When load is medium,
A compression chamber is opened only；Load very hour, two compression chambers are all closed, i.e., compressor 1 is closed, and only open wind
Machine, is run with air supply pattern.It should be noted that when load is medium, one of compression chamber is first enabled, when load reduces
During to designated value, the state operation for enabling another compression chamber is switched to：Because the compression chamber for now first enabling has begun to send out
Heat, the compression chamber for then enabling are in the state of cooling, it is clear that latter compression chamber compression effectiveness is more preferable, it is possible to switch to utilization
Latter compression chamber continues the state operation of individually compression, improves 1 work efficiency of compressor；Such as in the feelings that design temperature is 25 DEG C
Under condition, when indoor temperature is 31 DEG C, two compression chamber full opens；When temperature is down to 29 DEG C, a compression chamber is closed, works as temperature
When degree is down to 25.5 DEG C, direct close compressor 1 is run with air supply pattern；Certainly also can change another when temperature is down to 27 DEG C
One compression chamber.The parameter value of data acquisition module acquisition is compared in ECU timing, in time the running status of adjustment air-conditioning, it is to avoid
Cause fluctuations in indoor temperature excessive not in time because air conditioning system working condition is adjusted, it is ensured that the good experience of user；Only when
Just stop the operation of compressor 1 when indoor temperature tends to being close to design temperature, 1 stop and start frequency of compressor is low, and indoor temperature occurs
The probability of larger fluctuation is reduced, while contributing to extending the service life of compressor 1, protects air-conditioning equipment.The present embodiment can
According to thermal load demands adjust automatically cold or heat output, it is to avoid room temperature is affected comfortableness by the machine of frequently switching on；Together
When, transducer air conditioning is greatly lowered the embodiment design cost on year-on-year basis, and air-conditioner with fixed frequency comfortableness is greatly improved on year-on-year basis.
Preferably, as shown in figure 1, the restricting element is heating power expansion valve 3, the heating power expansion valve 3 and the evaporation
The temperature-sensitive bag 5 in 4 exit of device connects, so that the coolant degree of superheat exported according to vaporizer 4 is adjusted into the cold of the vaporizer 4
Matchmaker measures.The degree of superheat that heating power expansion valve 3 can export cold-producing medium according to vaporizer 4 adjusts the refrigerant flow into vaporizer 4,
The regulating power of fixed frequency air conditioner system is further enhancing, Consumer's Experience is improved.
Optionally, the restricting element is electric expansion valve；Or the restricting element is capillary tube.Given here
It is several frequently seen restricting element, it is preferred to use be capable of the structure of assisted air conditioning system flexible indoor temperature.
Further, volume of the volume of first compression chamber more than second compression chamber.If two compression chambers
Volume is different, then the load condition that can be only opened a compression chamber is further divided into individually opening the load of the first compression chamber
Slightly higher state and the individually compound lower slightly state of the second compression chamber of unlatching.Here load is slightly higher, lower slightly just for two
With the corresponding relatively higher or relatively low compressed capability of not isometric compression chamber.Such as original indoor temperature is down to 29
DEG C when, can select to close less second compression chamber of volume, open the first compression chamber；When indoor temperature is further reduced to 27 DEG C
When, then the second compression chamber less only with volume is switched to, close the first compression chamber；Until temperature is closed when being down to 25.5 DEG C again
Close whole compressor 1 and run with air supply pattern.The refrigeration or heating efficiency of air-conditioning can be so further enhanced, shortens cooling
Or the heating-up time, shorten the waiting time, improve Consumer's Experience.
Embodiment two：
Present invention also offers a kind of control method of the fixed frequency air conditioner system as described in embodiment one, comprises the following steps：
In fixed frequency air conditioner system operation, current indoor temperature Tr is with design temperature Ts and is compared for acquisition：
If | Tr-Ts | is ＞ Ta, the first valve, the second valve are opened, compressor operating；
If Ta >=| Tr-Ts | ＞ Tb, the first valve is opened, the second valve closing, compressor operating；
If Tb >=| Tr-Ts | ＞ Tc, the first valve closing, the second valve are opened, compressor operating；
If Tc >=| Tr-Ts |, the first valve, the second valve are turned off, and compressor does not run.
Indoor temperature Tr is acquired by data acquisition module with design temperature Ts；As air-conditioning can both realize system
It is cold, can realize again heating, when air-conditioning is run in a chiller mode, Tr >=Ts, now in the method all of Tr-Ts be it is non-
Negative value, the value of | Tr-Ts | are bigger, illustrate that indoor temperature is higher, need the power that compressor is provided bigger；Similar, work as air-conditioning
When being run with heating mode, Tr≤Ts, now in the method, all of Tr-Ts is non-positive value, and the value of | Tr-Ts | is bigger, says
Bright indoor temperature is lower, needs the power that compressor is provided bigger.Below in a chiller mode as a example by, specifically tell about the fortune of the method
Row process, as shown in Figure 2：
S1, reception starting-up signal, are prepared to enter into refrigeration mode；
S2, ECU are compared to current indoor temperature Tr and design temperature Ts, so that design temperature is 25 DEG C as an example,
Ta, Tb, Tc take 4 DEG C, 2 DEG C, 0.5 DEG C respectively, and comparative result can be divided into multistage to embody different air conditioner load states：
If indoor temperature Tr is 31 DEG C, | Tr-Ts | ＞ Ta, the first valve, the second valve are opened, compressor operating,
Into refrigeration mode；Now air conditioner load than larger, open by the first valve, the second valve, and two compression chambers are enabled simultaneously；
If indoor temperature Tr is 29 DEG C, Ta >=| Tr-Ts | ＞ Tb, the first valve are opened, the second valve closing, compressor
Operation, into refrigeration mode；Now air conditioner load is not too big, can only enable one of compression chamber i.e. the first compression chamber；
If indoor temperature Tr is 27 DEG C, Tb >=| Tr-Ts | ＞ Tc, the first valve closing, the second valve are opened, compressor
Operation, into refrigeration mode；Now air conditioner load is less, can enable another compression chamber i.e. the second compression chamber；
Need exist for illustratively why the first compression chamber being changed to the second compression chamber and be compressed：If two
Compression chamber volume is identical, and indoor temperature is gradually lowered by 31 DEG C, then when temperature is down to 27 DEG C, enabled
Compression chamber temperature it is higher, compression efficiency is affected, it may be considered that be replaced with another compression chamber lowered the temperature with improve
Compression efficiency.If the volume of the first compression chamber is more than the volume of the second compression chamber, then volume is enabled when load is of a relatively high
The first larger compression chamber, enables less second compression chamber of volume and is just best understood from when load is relatively low.
If indoor temperature Tr is 25.5-24.5 DEG C, Tc >=| Tr-Ts |, the first valve, the second valve are turned off, compression
Machine does not run, and now the blower fan of air-conditioning can cut out, it is also possible to selects unlatching to make air-conditioning and is run with air supply pattern；Due to Indoor Temperature
Degree has leveled off to design temperature, now stops compressor and does not interfere with Consumer's Experience, while saves energy, contributes to extending pressure
The service life of contracting machine；
In addition, the process can be the work shape according to ambient temperature with the comparative result selection compressor of design temperature
State, or a complete temperature-fall period, such as design temperature are 25 DEG C, two compression chambers when indoor temperature is higher than 31 DEG C
Enable simultaneously, temperature only enables the first compression chamber after being down to 29 DEG C, temperature uses the second compression chamber instead after being down to 27 DEG C, temperature is down to
After 25.5 DEG C, close compressor is run with air supply pattern.
S3, step S2 is held again every setting time.I.e. in air-conditioning according to the comparison of indoor temperature and design temperature
As a result, after entering corresponding refrigerating state, indoor temperature, design temperature are to improve Consumer's Experience, need it is possible to change
Indoor temperature obtained again with design temperature every setting time and be compared, so as to the work shape for adjusting compressor in time
State, saves energy.
Heating operations are similar with refrigeration, and load is bigger, and the compression chamber quantity of unlatching is more, will not be described here.
The present invention is using the absolute value of indoor temperature and the difference of design temperature as the reference of air conditioner load, big by air conditioner load
Little to be divided into multiple intervals, under different load, compressor is combined to provide different compression horsepowers using different compression chambers,
On the premise of realizing corresponding refrigeration or heating effect, can be kept away according to thermal load demands adjust automatically cold or heat output
Exempt from room temperature to be frequently switched on machine and affect comfortableness；Meanwhile, transducer air conditioning is significantly on year-on-year basis for the Technical Design cost
Degree is reduced, and air-conditioner with fixed frequency comfortableness is greatly improved on year-on-year basis.
Further, in the compressor under running status, when Tc >=| Tr-Ts | sets up, and after persistent period t1,
Turn off the compressor.I.e. in compressor in the state of opening, when indoor load has met wanting for close compressor
When asking, then observe a period of time, such as 1 minute, when indoor load persistently meets the condition of close compressor in this 1 minute,
Turn off compressor；So arrange and can substantially reduce the frequency of close compressor, it is to avoid indoor load frequent fluctuation and cause
The phenomenon that compressor is frequently closed at short notice occurs, and protects compressor, improves comfort.
Further, in the compressor under run-stopping status, no matter whether blower fan is opened, and is to work as | Tr-Ts
| ＞ Tc set up, and after continuing the t2 times, just start the compressor.I.e. in compressor in the state of closing, when indoor negative
Lotus has been met when opening the requirement of compressor, then is observed a period of time, such as 1 minute, and indoor load continues in this 1 minute
When meeting the condition of unlatching compressor, compressor is turned off；So arrange and can substantially reduce the frequency for opening compressor, it is to avoid
Indoor load frequent fluctuation and cause the phenomenon that compressor frequently opened at short notice to occur, protect compressor, improve and use
Comfort level.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement and replacement can also be made, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of fixed frequency air conditioner system, it is characterised in that include：It is made up of compressor, condenser, restricting element, vaporizer
Refrigeration heats loop；The compressor includes can be while open or the first compression chamber for individually opening and the second compression chamber, institute
State the first compression chamber, the entrance of the second compression chamber and be respectively equipped with the first valve and the second valve electrically connected with ECU；Institute
State ECU to be also associated with for gathering the data acquisition module of the design temperature of indoor temperature and air conditioning system.
2. fixed frequency air conditioner system as claimed in claim 1, it is characterised in that the restricting element is heating power expansion valve, described
Heating power expansion valve is connected with the temperature-sensitive bag at the evaporator outlet, so as to according to the coolant degree of superheat of evaporator outlet adjust into
Enter the coolant quantity of the vaporizer.
3. fixed frequency air conditioner system as claimed in claim 1, it is characterised in that the restricting element is electric expansion valve.
4. fixed frequency air conditioner system as claimed in claim 1, it is characterised in that the restricting element is capillary tube.
5. the fixed frequency air conditioner system as described in any one of Claims 1-4, it is characterised in that the volume of first compression chamber
More than the volume of second compression chamber.
6. a kind of control method of the fixed frequency air conditioner system as described in any one of claim 1 to 5, it is characterised in that including following
Step：
In fixed frequency air conditioner system operation, current indoor temperature Tr is with design temperature Ts and is compared for acquisition：
If | Tr-Ts | is ＞ Ta, the first valve, the second valve are opened, compressor operating；
If Ta >=| Tr-Ts | ＞ Tb, the first valve is opened, the second valve closing, compressor operating；
If Tb >=| Tr-Ts | ＞ Tc, the first valve closing, the second valve are opened, compressor operating；
If Tc >=| Tr-Ts |, the first valve, the second valve are turned off, and compressor does not run.
7. control method as claimed in claim 6, it is characterised in that in the compressor under running status, when Tc >=|
Tr-Ts | set up, and after persistent period t1, turn off the compressor.
8. control method as claimed in claims 6 or 7, it is characterised in that in the compressor under run-stopping status,
When | Tr-Ts | ＞ Tc set up, and after continuing the t2 times, start the compressor.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405355A (en) * | 2018-12-21 | 2019-03-01 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN110425687A (en) * | 2019-08-09 | 2019-11-08 | 四川虹美智能科技有限公司 | A kind of refrigerant adjusting method, refrigerant adjusting controller and air-conditioning system |
| CN110529969A (en) * | 2019-09-12 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A kind of fixed frequency air conditioner control method, device and air conditioner |
| WO2021073400A1 (en) * | 2019-10-17 | 2021-04-22 | 日立楼宇技术（广州）有限公司 | Air conditioner control method and apparatus, device, and storage medium |
| CN113203188A (en) * | 2021-04-27 | 2021-08-03 | 宁波奥克斯电气股份有限公司 | Energy-saving consumption-reducing control method and device for multi-connected air conditioning system and hotel management system |
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| GB2022808A (en) * | 1978-06-01 | 1979-12-19 | Lnc Ind Ltd | Improvements in or relating to heat pumps |
| CN1467443A (en) * | 2002-06-14 | 2004-01-14 | ���ǵ�����ʽ���� | Air conditioning apparatus and control method thereof |
| CN104729029A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN206281234U (en) * | 2016-12-01 | 2017-06-27 | 广州华凌制冷设备有限公司 | A kind of fixed frequency air conditioner system |
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| CN109405355A (en) * | 2018-12-21 | 2019-03-01 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN110425687A (en) * | 2019-08-09 | 2019-11-08 | 四川虹美智能科技有限公司 | A kind of refrigerant adjusting method, refrigerant adjusting controller and air-conditioning system |
| CN110529969A (en) * | 2019-09-12 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A kind of fixed frequency air conditioner control method, device and air conditioner |
| WO2021073400A1 (en) * | 2019-10-17 | 2021-04-22 | 日立楼宇技术（广州）有限公司 | Air conditioner control method and apparatus, device, and storage medium |
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Application publication date: 20170322 |