CN106352493A - Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner - Google Patents
Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner Download PDFInfo
- Publication number
- CN106352493A CN106352493A CN201610884746.2A CN201610884746A CN106352493A CN 106352493 A CN106352493 A CN 106352493A CN 201610884746 A CN201610884746 A CN 201610884746A CN 106352493 A CN106352493 A CN 106352493A
- Authority
- CN
- China
- Prior art keywords
- compressor
- air conditioner
- air
- control method
- ton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method for starting and stopping an air conditioner compressor in a low-load operation mode, wherein the control method comprises the following steps: s1, setting Ton as the minimum small-load running time of the air-conditioning compressor, wherein the Ton is smaller than the minimum normal-load running time of the air-conditioning compressor; s2, starting timing when the air conditioner compressor is started, and judging whether the air conditioner compressor is in a low-load running state; and S3, when the air conditioner compressor is in a low-load running state, recording the running time of the air conditioner compressor as t, and when t is more than or equal to Ton and the running purpose is achieved, controlling the air conditioner compressor to stop. When the compressor is started to run, whether the compressor runs in a small load state is judged, if the compressor runs in the small load state, when the running time t meets Ton and achieves the running purpose, the compressor can be controlled to stop, the compressor does not need to run to the original shortest running time of the compressor, and energy consumption is saved.
Description
Technical field
The present invention relates to a kind of compressor control method, more particularly to a kind of compressor of air conditioner Smaller load operation start and stop control
Method processed, compressor of air conditioner and air-conditioner.
Background technology
Within air-conditioning systems, in order to avoid high frequent start and stop it is stipulated that a The shortest operation time and one the shortest stop
The machine time, once that is, compressor is opened it is necessary to unlatching The shortest operation time could be shut down;Once shutting down it is necessary to stop enough short stopping
The machine time just can be then turned on, make compressor will not frequent start-stop, prevent compressor damage.When compressor load is less, compression
Machine runs and has just reached halt condition (operation purpose) less than The shortest operation time, but due to proceeding to The shortest operation time
Could shut down, lead to temperature to be controlled or pressure more beyond setting value, affect control effect and non-energy-conservation.
Content of the invention
Based on this it is necessary to be directed to the problem of not energy-conservation when the current Smaller load existing for compressor of air conditioner runs, carry
A kind of compressor of air conditioner Smaller load for good energy-conserving effect runs on off control method, compressor of air conditioner and air-conditioner.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of compressor of air conditioner Smaller load runs on off control method, and wherein said control method includes:
S1, set ton as the Smaller load The shortest operation time of compressor of air conditioner, it is normal that described ton is less than compressor of air conditioner
Load The shortest operation time;
S2, start timing when compressor of air conditioner starts, judge whether compressor of air conditioner is in Smaller load running status;
S3, when compressor of air conditioner is in Smaller load running status, record compressor of air conditioner run time be t, when t >=
Ton and reach operation purpose when, control compressor of air conditioner shut down.
Wherein in an embodiment, described judge whether compressor of air conditioner is in the step of Smaller load running status and refers to
It is compared with setting power value according to compressor of air conditioner real output, when the real output of compressor of air conditioner is less than
During setting power value, judge that compressor of air conditioner is in Smaller load running status.
Wherein in an embodiment, described judge whether compressor of air conditioner is in the step of Smaller load running status and refers to
It is compared according to air-conditioner design temperature and Current Temperatures, when design temperature is poor less than design temperature with the difference of Current Temperatures
During value, judge that compressor of air conditioner is in Smaller load running status.
Wherein in an embodiment, described judge whether compressor of air conditioner is in the step of Smaller load running status and refers to
According to air-conditioner actual go out monsoon intensity with set air-out intensity level be compared, when actual go out monsoon intensity be less than set out monsoon intensity
During value, judge that compressor of air conditioner is in Smaller load running status.
Wherein in an embodiment, the setting the shortest startup-shutdown time t of compressor, described t > (ton+toff), wherein
Toff is the Minimum Idle Time of compressor;
As t < ton and when reaching operation purpose, control compressor of air conditioner to run and shuts down again to ton, and shut down to opening again
The dynamic shortest time is (t-ton).
Wherein in an embodiment, when ton≤t≤t and reach operation purpose when, control compressor of air conditioner shut down, and
Shutting down to the shortest time being again started up is max { (t t), toff }.
Wherein in an embodiment, as t >=t and when reaching operation purpose, control compressor of air conditioner to shut down, and shut down
It is toff to the shortest time being again started up.
Wherein in an embodiment, it is that air-conditioner Current Temperatures reach setting that described compressor of air conditioner reaches operation purpose
Temperature.
Present invention also offers a kind of compressor of air conditioner, including compressor controller, described compressor controller is according to upper
State arbitrary control method compressor of air conditioner is controlled.
Present invention also offers a kind of air-conditioner is it is characterised in that include above-mentioned compressor of air conditioner.
The invention has the beneficial effects as follows: compressor of air conditioner Smaller load of the present invention runs on off control method and sets air-conditioning pressure
Smaller load The shortest operation time ton of contracting machine, and ton is less than compressor of air conditioner normal duty The shortest operation time, works as compressor
During startup optimization, judge whether compressor runs, if being in Smaller load running status, when running under Smaller load state
Between t meet ton and reach during operation purpose it is possible to control compressor shutdown, without running to the shortest of compressor script
Run time, has saved energy resource consumption.
Brief description
Fig. 1 is the control flow schematic diagram that compressor of air conditioner Smaller load of the present invention runs on off control method one embodiment;
Fig. 2 is the control flow signal that compressor of air conditioner Smaller load of the present invention runs another embodiment of on off control method
Figure.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, by the following examples, and with reference to attached
Figure, carries out detailed further to compressor of air conditioner Smaller load of the present invention operation on off control method, compressor of air conditioner and air-conditioner
Explanation.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Shown in Figure 1, the invention provides a kind of compressor of air conditioner Smaller load runs on off control method, comprising:
S1, set ton as the Smaller load The shortest operation time of compressor of air conditioner, ton is less than compressor of air conditioner normal duty
The shortest operation time;
S2, start timing when compressor of air conditioner starts, judge whether compressor of air conditioner is in Smaller load running status;
S3, when compressor of air conditioner is in Smaller load running status, record compressor of air conditioner run time be t, when t >=
Ton and reach operation purpose when, control compressor of air conditioner shut down.
For example under compressor of air conditioner normal duty, The shortest operation time is 6min, in the present embodiment, sets air-conditioning pressure
Smaller load The shortest operation time ton of contracting machine is 3min, then compressor of air conditioner Smaller load runs 3min and reached operation purpose
(halt condition), you can control compressor of air conditioner to shut down, run time shortens, reducing energy consumption.
How to judge whether compressor of air conditioner is in Smaller load running status, present embodiment in above control method
Provide following three kinds of judgment modes:
First, it is compared according to compressor of air conditioner real output and setting power value, when the reality of compressor of air conditioner
When output is less than setting power value, judge that compressor of air conditioner is in Smaller load running status.Setting power value therein is
Refer to compressor Smaller load running status and the output marginal value of normal operating condition.
2nd, it is compared according to air-conditioner design temperature and Current Temperatures, when design temperature is little with the difference of Current Temperatures
When design temperature difference, judge that compressor of air conditioner is in Smaller load running status.I.e. when design temperature and current environmental temperature
Difference very little it is meant that compressor of air conditioner only needs to small-power runs and just can quickly reach design temperature, meet shutdown bar
Part, then compressor be in Smaller load running status.
3rd, according to air-conditioner actual go out monsoon intensity with set air-out intensity level be compared, when actual go out monsoon intensity be less than
When setting air-out intensity level, judge that compressor of air conditioner is in Smaller load running status.Go out that monsoon intensity is less to mean air-conditioner
Heat exchange to environment is slower, and compressor of air conditioner does not need larger output, then compressor is in Smaller load and runs shape
State.Wherein set the air-out critical strength that air-out intensity level refers to compressor Smaller load running status and normal operating condition.
Shown in Figure 2, compressor of air conditioner Smaller load of the present invention runs the base in above-mentioned embodiment for the on off control method
Another embodiment is additionally provided on plinth, sets compressor the shortest startup-shutdown time t, t > (ton+toff), wherein toff is
The Minimum Idle Time of compressor;As t < ton and when reaching operation purpose, compressor of air conditioner is controlled to run and shuts down to ton again,
And shut down to the shortest time being again started up be (t-ton).
As ton≤t≤t and when reaching operation purpose, control compressor of air conditioner to shut down, and shut down to be again started up the shortest
Time is max { (t t), toff }.
As t >=t and reach operation purpose when, control compressor of air conditioner shut down, and shut down to be again started up the most in short-term
Between be toff.
The purpose of above-mentioned control method is to be controlled to the run time of compressor and downtime, it is to avoid compression
Machine frequent start-stop at short notice, causes compressor damage.It is 6 that such as compressor allows startup-shutdown frequency n in a hour
Secondary, then t=60min/n=10min, Smaller load The shortest operation time ton of compressor of air conditioner is 3min, and the shortest of compressor is stopped
Machine time toff is 6min, t > (ton+toff).
When between when the compressor is operating, t is 2min and reaches operation purpose, due to t < ton, in order to protect compressor, control
Compressor processed reruns after 1min reaches ton and shuts down, and allows compressor after the compressor shutdown time reaches (t-ton)=7min
It is again started up.
When t is 3.5min and reaches operation purpose between when the compressor is operating, control compressor shutdown, in compressor shutdown
Time allows compressor to be again started up after reaching max { (t t), toff }=6.5min.
When t is 5min and reaches operation purpose between when the compressor is operating, control compressor shutdown, in compressor shutdown
Between reach max { (t t), toff }=6min after allow compressor be again started up.
When t is 11min and reaches operation purpose between when the compressor is operating, control compressor shutdown, in compressor shutdown
Time allows compressor to be again started up after reaching toff=6min.
In above-mentioned two embodiment, it is that air-conditioner Current Temperatures reach setting temperature that compressor of air conditioner reaches operation purpose
Degree, that is, reach halt condition.
The present invention also provides a kind of compressor of air conditioner, and including compressor controller, compressor controller is according to above-mentioned enforcement
Control method in mode is controlled to compressor of air conditioner.
The present invention also provides a kind of air-conditioner, including the compressor of air conditioner in above-mentioned embodiment.
Above example only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but can not
Therefore it is interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of compressor of air conditioner Smaller load runs on off control method it is characterised in that described control method includes:
S1, set ton as the Smaller load The shortest operation time of compressor of air conditioner, described ton is less than compressor of air conditioner normal duty
The shortest operation time;
S2, start timing when compressor of air conditioner starts, judge whether compressor of air conditioner is in Smaller load running status;
S3, when compressor of air conditioner is in Smaller load running status, record compressor of air conditioner run time be t, as t >=ton
And when reaching operation purpose, control compressor of air conditioner to shut down.
2. control method according to claim 1 is it is characterised in that described judge whether compressor of air conditioner is in Smaller load
The step of running status refers to be compared with setting power value according to compressor of air conditioner real output, works as compressor of air conditioner
Real output be less than setting power value when, judge that compressor of air conditioner is in Smaller load running status.
3. control method according to claim 1 is it is characterised in that described judge whether compressor of air conditioner is in Smaller load
The step of running status refers to be compared according to air-conditioner design temperature and Current Temperatures, when design temperature and Current Temperatures
When difference is less than design temperature difference, judge that compressor of air conditioner is in Smaller load running status.
4. control method according to claim 1 is it is characterised in that described judge whether compressor of air conditioner is in Smaller load
The step of running status refer to according to air-conditioner actual go out monsoon intensity with set air-out intensity level be compared, when actual air-out is strong
When degree is less than setting air-out intensity level, judge that compressor of air conditioner is in Smaller load running status.
5. control method according to claim 1 is it is characterised in that set compressor the shortest startup-shutdown time t, described t
> (ton+toff), wherein toff are the Minimum Idle Time of compressor;
As t < ton and when reaching operation purpose, control compressor of air conditioner to run and shuts down again to ton, and shut down to being again started up
Shortest time is (t-ton).
6. control method according to claim 5 it is characterised in that when ton≤t≤t and reach operation purpose when, control
Compressor of air conditioner shut down, and shut down to the shortest time being again started up be max { (t t), toff }.
7. control method according to claim 5 is it is characterised in that as t >=t and when reaching operation purpose, control empty
Adjust compressor shutdown, and shut down to the shortest time being again started up be toff.
8. the control method according to any one of claim 1 to 7 is it is characterised in that described compressor of air conditioner reaches operation
Purpose is that air-conditioner Current Temperatures reach design temperature.
9. a kind of compressor of air conditioner is it is characterised in that include compressor controller, described compressor controller is according to claim
1 to 8 arbitrary control method is controlled to compressor of air conditioner.
10. a kind of air-conditioner is it is characterised in that include compressor of air conditioner as claimed in claim 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610884746.2A CN106352493B (en) | 2016-10-10 | 2016-10-10 | Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610884746.2A CN106352493B (en) | 2016-10-10 | 2016-10-10 | Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106352493A true CN106352493A (en) | 2017-01-25 |
CN106352493B CN106352493B (en) | 2019-01-11 |
Family
ID=57866089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610884746.2A Active CN106352493B (en) | 2016-10-10 | 2016-10-10 | Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106352493B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113266931A (en) * | 2021-05-21 | 2021-08-17 | Tcl空调器(中山)有限公司 | Variable frequency control method and system of air conditioner and air conditioner |
CN113418329A (en) * | 2021-05-28 | 2021-09-21 | 青岛海尔空调电子有限公司 | Control method of refrigeration and freezing unit and refrigeration and freezing unit |
CN114194237A (en) * | 2020-09-18 | 2022-03-18 | 浙江盾安人工环境股份有限公司 | Temperature control method and device for subway air conditioning unit and readable storage medium |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292813A (en) * | 1979-03-08 | 1981-10-06 | Whirlpool Corporation | Adaptive temperature control system |
JPH04268164A (en) * | 1991-02-22 | 1992-09-24 | Sharp Corp | Air conditioner |
KR20010004761A (en) * | 1999-06-29 | 2001-01-15 | 윤종용 | Frequency control method of a compressor for an inverter air conditioner |
CN102032139A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | System and method for adjusting energy of magnetic suspension compressor |
CN102538144A (en) * | 2012-02-14 | 2012-07-04 | 美的集团有限公司 | Control method of multi-connected air conditioning unit |
JP5511761B2 (en) * | 2011-10-13 | 2014-06-04 | 三菱電機株式会社 | Air conditioner |
CN104515334A (en) * | 2013-09-30 | 2015-04-15 | 海尔集团公司 | Air conditioner heating mode frequency control method |
CN104613600A (en) * | 2015-01-29 | 2015-05-13 | 广东美的制冷设备有限公司 | Method and system for controlling air-conditioner |
CN105571080A (en) * | 2016-02-02 | 2016-05-11 | 美的集团武汉制冷设备有限公司 | Air conditioner control method and air conditioner |
CN104515254B (en) * | 2013-09-30 | 2017-02-08 | 海尔集团公司 | Air conditioning compressor frequency control method |
-
2016
- 2016-10-10 CN CN201610884746.2A patent/CN106352493B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4292813A (en) * | 1979-03-08 | 1981-10-06 | Whirlpool Corporation | Adaptive temperature control system |
JPH04268164A (en) * | 1991-02-22 | 1992-09-24 | Sharp Corp | Air conditioner |
KR20010004761A (en) * | 1999-06-29 | 2001-01-15 | 윤종용 | Frequency control method of a compressor for an inverter air conditioner |
CN102032139A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | System and method for adjusting energy of magnetic suspension compressor |
JP5511761B2 (en) * | 2011-10-13 | 2014-06-04 | 三菱電機株式会社 | Air conditioner |
CN102538144A (en) * | 2012-02-14 | 2012-07-04 | 美的集团有限公司 | Control method of multi-connected air conditioning unit |
CN104515334A (en) * | 2013-09-30 | 2015-04-15 | 海尔集团公司 | Air conditioner heating mode frequency control method |
CN104515254B (en) * | 2013-09-30 | 2017-02-08 | 海尔集团公司 | Air conditioning compressor frequency control method |
CN104613600A (en) * | 2015-01-29 | 2015-05-13 | 广东美的制冷设备有限公司 | Method and system for controlling air-conditioner |
CN105571080A (en) * | 2016-02-02 | 2016-05-11 | 美的集团武汉制冷设备有限公司 | Air conditioner control method and air conditioner |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114194237A (en) * | 2020-09-18 | 2022-03-18 | 浙江盾安人工环境股份有限公司 | Temperature control method and device for subway air conditioning unit and readable storage medium |
CN113266931A (en) * | 2021-05-21 | 2021-08-17 | Tcl空调器(中山)有限公司 | Variable frequency control method and system of air conditioner and air conditioner |
CN113418329A (en) * | 2021-05-28 | 2021-09-21 | 青岛海尔空调电子有限公司 | Control method of refrigeration and freezing unit and refrigeration and freezing unit |
Also Published As
Publication number | Publication date |
---|---|
CN106352493B (en) | 2019-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104806499B (en) | Control method | |
CN108917112B (en) | Method for graded control self-adaption of variable frequency outdoor unit and air conditioner | |
CN107676939B (en) | Control method, control system and control device of fixed-frequency air conditioner | |
CN105222277A (en) | A kind of frequency-variable air conditioner outdoor machine starts control method and the system of compressor fast | |
CN104764170B (en) | Heat pump start-stop control method and device and air conditioner | |
CN106352493A (en) | Air conditioner compressor small-load operation start-stop control method, air conditioner compressor and air conditioner | |
CN114811885B (en) | Compressor starting control method and air conditioner | |
WO2020094007A1 (en) | Control method and device for improving refrigeration comfort of inverter air-conditioner, and air conditioner | |
CN101893310A (en) | Control method for preventing overload of compressor under heating mode of heat pump air conditioner | |
CN104421139A (en) | compressor operation control method and device | |
CN104848482A (en) | Preheating control method of air conditioner compressor | |
CN111059692A (en) | Control method for reducing protection shutdown times of air conditioning system, computer readable storage medium and air conditioner | |
CN107883553A (en) | A kind of frequency-changeable compressor frequency reducing control method and device | |
CN105068838A (en) | Information processing method and electronic device | |
WO2024216988A1 (en) | Self-adaptive power regulation method and apparatus for fuel cell system, vehicle and medium | |
CN112664455B (en) | Lubrication adjusting method and device for compressor, electronic equipment and storage medium | |
CN111622936A (en) | Method, apparatus and computer readable storage medium for compressor overload protection | |
CN108413688B (en) | Refrigerator control method, controller and refrigerator | |
CN113028576A (en) | Air conditioner control method and device and air conditioner | |
CN112594885B (en) | Air conditioner and control method thereof | |
CN106482410A (en) | Start-stop control method for refrigeration compressor | |
CN110456752B (en) | Air compression station control method based on combination of plan scheduling and algorithm scheduling | |
CN111720979B (en) | Air conditioner and energy-saving control method thereof | |
CN113364034B (en) | Automatic control method and device for gas generator set | |
CN106403486A (en) | Control method and control device for frequency-conversion refrigeration device, and refrigerator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |