CN113969889B - Preheating control method and system for variable frequency compressor - Google Patents
Preheating control method and system for variable frequency compressor Download PDFInfo
- Publication number
- CN113969889B CN113969889B CN202111367344.2A CN202111367344A CN113969889B CN 113969889 B CN113969889 B CN 113969889B CN 202111367344 A CN202111367344 A CN 202111367344A CN 113969889 B CN113969889 B CN 113969889B
- Authority
- CN
- China
- Prior art keywords
- preheating
- variable frequency
- exiting
- frequency compressor
- compressor
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the field of preheating of variable frequency compressors, in particular to a preheating control method and a preheating control system of a variable frequency compressor, which improve the starting efficiency and the safety of the variable frequency compressor, and the technical scheme is summarized as follows: under the condition that the variable frequency compressor does not operate the preheating function, when the current exhaust temperature is smaller than the preheating starting threshold, the downtime is longer than a first specific time, the first duration after the last preheating is ended is longer than a second specific time, and the preheating function of the variable frequency compressor is started; under the condition that the variable frequency compressor is running and has a preheating function, the exhaust temperature of the variable frequency compressor continuously exceeds the second duration of exiting the preheating threshold temperature by more than a third specific time, or the variable frequency compressor has a starting signal and the current preheating duration is longer than a fourth specific time, or the main control board and the driving board of the variable frequency compressor have communication faults, and the variable frequency compressor exits the preheating function that the compressor is running. The invention is suitable for starting and preheating the compressor in cold environment.
Description
Technical Field
The invention relates to the field of preheating of variable frequency compressors, in particular to a preheating control method and a preheating control system of a variable frequency compressor.
Background
The living standard of residents in the modern society is continuously improved, and with the continuous promotion of coal to electricity engineering in northern China, most families in China already use air conditioners, and in order to save energy, improve efficiency and protect environment, the air conditioner products purchased by residents are basically of variable frequency type. However, the control of the frequency converter type is required to be adapted to local conditions due to the difference of environmental factors such as climate among the regions. The control of the variable frequency compressor is particularly important, particularly in northern areas, factors such as cold climate and the like are considered, and the safety, reliability and stability of the system are ensured while comfort and energy conservation are ensured.
In a cold environment, the conventional variable frequency air conditioner generally cannot operate or has low operating efficiency because the compressor is not started or is started for too long, so that the variable frequency air conditioner cannot meet the use requirements of clients in the areas, and is more likely to have risks in terms of safety and reliability.
Disclosure of Invention
The invention aims to provide a preheating control method and a preheating control system for a variable frequency compressor, which solve the problems that the variable frequency compressor cannot be started in a cold environment or the starting time is too long, so that the compressor cannot operate or the operating efficiency is low, and risks in the aspect of safety and reliability exist, meet the use requirements of users, enhance the operating efficiency and improve the safety and reliability.
The invention adopts the following technical scheme to realize the aim, and the preheating control method of the variable frequency compressor comprises the following steps:
Step 1, judging whether the variable frequency compressor is running a preheating function, if not, entering step 2; if yes, enter step 6;
Step 2, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold temperature, and if yes, entering a step 3; if not, exiting the preheating start judging program;
step 3, acquiring the downtime of the variable frequency compressor, judging whether the downtime is greater than a first specific time, and if yes, entering a step 4; if not, exiting the preheating start judging program;
step 4, acquiring a first duration after the last preheating is finished, judging whether the first duration is larger than a second specific time, and if yes, entering a step 5; if not, exiting the preheating start judging program;
step 5, starting a preheating function of the variable frequency compressor, and exiting a preheating starting judgment program;
step 6, obtaining a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the temperature of the exiting preheating threshold, judging whether the second duration time is greater than a third specific time, and if yes, entering a step 7;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current preheating measurement duration, and judging whether the current preheating measurement duration is greater than a fourth specific time, if so, entering a step 7;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, entering a step 7;
and 7, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
Further, in step 5, after the preheating function of the inverter compressor is started, the method further includes: the relevant variables and flags are cleared.
Further, in step 7, after exiting the preheating function in which the compressor is running, the method further includes: the relevant variables and flags are cleared.
Further, in step 6, the communication failure includes the main control board receiving no data from the drive board or receiving erroneous data within a set continuous time.
The preheating control system of the variable frequency compressor is used for executing the preheating control method of the variable frequency compressor, and comprises the following steps:
the variable frequency compressor main control board is used for judging whether the variable frequency compressor is running a preheating function, if the variable frequency compressor is not running the preheating function, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold value, if yes, acquiring the downtime of the variable frequency compressor, judging whether the downtime is larger than a first specific time, if yes, acquiring the first duration after the last preheating is finished, judging whether the first preheating duration is larger than a second specific time, starting the preheating function of the variable frequency compressor, and exiting a preheating starting judging program;
If the variable frequency compressor is running the preheating function, acquiring a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the exiting preheating threshold temperature, judging whether the second duration time is greater than a third specific time, if so, exiting the running preheating function of the compressor, and exiting the preheating exiting judging program;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current prediction duration, judging whether the current prediction duration is larger than a fourth specific time, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
The invention uses the exhaust temperature and the related time parameter of the variable frequency compressor which are easy to obtain as the judging conditions for starting the preheating, so that the variable frequency compressor can be timely and fully preheated before the user starts the variable frequency compressor; the exhaust temperature, the starting signal and the related time parameters of the variable frequency compressor which are easy to obtain are used as judging conditions for exiting preheating, so that the compressor can be ensured not to be in a preheating state for a long time all the time, the power consumption is reduced, and the safety and the reliability are improved.
Drawings
Fig. 1 is a flow chart of preheating control of the inverter compressor according to the present invention.
Detailed Description
The preheating control method of the variable frequency compressor, as shown in figure 1, comprises the following steps:
Step 1, judging whether the variable frequency compressor is running a preheating function, if not, entering step 2; if yes, enter step 6;
Step 2, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold temperature, and if yes, entering a step 3; if not, exiting the preheating start judging program;
step 3, acquiring the downtime of the variable frequency compressor, judging whether the downtime is greater than a first specific time, and if yes, entering a step 4; if not, exiting the preheating start judging program;
step 4, acquiring a first duration after the last preheating is finished, judging whether the first duration is larger than a second specific time, and if yes, entering a step 5; if not, exiting the preheating start judging program;
step 5, starting a preheating function of the variable frequency compressor, and exiting a preheating starting judgment program;
step 6, obtaining a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the temperature of the exiting preheating threshold, judging whether the second duration time is greater than a third specific time, and if yes, entering a step 7;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current preheating measurement duration, and judging whether the current preheating measurement duration is greater than a fourth specific time, if so, entering a step 7;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, entering a step 7;
and 7, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
In step 5, after the preheating function of the inverter compressor is started, the method further comprises: the relevant variables and flags are cleared.
In step 7, after exiting the preheating function in which the compressor is running, the method further comprises: the relevant variables and flags are cleared.
In step 6, the communication failure includes that the main control board cannot receive the data of the drive board or receives the wrong data in the set continuous time.
The preheating control system of the variable frequency compressor is used for executing the preheating control method of the variable frequency compressor, and comprises the following steps:
the variable frequency compressor main control board is used for judging whether the variable frequency compressor is running a preheating function, if the variable frequency compressor is not running the preheating function, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold value, if yes, acquiring the downtime of the variable frequency compressor, judging whether the downtime is larger than a first specific time, if yes, acquiring the first duration after the last preheating is finished, judging whether the first preheating duration is larger than a second specific time, starting the preheating function of the variable frequency compressor, and exiting a preheating starting judging program;
If the variable frequency compressor is running the preheating function, acquiring a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the exiting preheating threshold temperature, judging whether the second duration time is greater than a third specific time, if so, exiting the running preheating function of the compressor, and exiting the preheating exiting judging program;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current prediction duration, judging whether the current prediction duration is larger than a fourth specific time, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
Examples
The variable frequency air conditioning system of the embodiment of the invention comprises: an outdoor unit, a driving board, 1 or several indoor units. The outdoor unit is respectively communicated with the driving plate and all the indoor units, and the indoor units are not communicated with the driving plate. The outdoor unit is used as a master and actively transmits data to the driving plate and the indoor unit for communication through different communication ports respectively. This embodiment relates only to the communication between the outdoor unit and the driving board.
The outdoor unit main control board software obtains the following parameters through sampling or calculation:
1. Sampling to obtain the real-time exhaust temperature Td of the variable-frequency compressor;
2. calculating the Time Time1 of the continuous shutdown of the compressor;
3. Calculating Time Time2 for Td to last beyond the exit warm-up threshold temperature;
4. Calculating the current preheating duration Time3;
5. Calculating duration Time4 after the last preheating is finished;
The preheating control flow A is as follows:
101. judging whether the system is running a compressor preheating function, if not, executing 102; if the compressor warm-up function is running, execute 105;
102. Judging whether Td is smaller than-4 ℃, if so, executing 103; otherwise, execute 110;
103. Judging whether the Time1 is more than 20 minutes, if yes, executing 104; otherwise, execute 110;
104. Judging whether the Time4 is greater than 30 minutes, if yes, starting a compressor preheating function, clearing related variables and marks, and executing 110;
105. Judging whether the Time2 is more than 3 minutes, if yes, executing 109; otherwise, execute 106;
106. judging whether the variable frequency compressor has a starting signal or not, if so, executing 107; otherwise, execute 108;
107. judging whether the Time3 is more than 5 minutes, if yes, executing 109; otherwise, execute 108;
108. If it is determined that the communication between the outdoor unit main control board and the driving board is faulty (the outdoor unit main control board cannot receive the data of the driving board or receives the error data for 2 minutes continuously), executing 109;
109. Exiting the compressor preheating function, and removing related variables and marks;
110. And exiting the preheating judging program.
The preheating control flow B is as follows:
101. judging whether the system is running a compressor preheating function, if not, executing 102; if the compressor warm-up function is running, execute 105;
102. judging whether Td is smaller than-4 ℃, if so, executing 103; otherwise, execute 107;
103. judging whether the Time1 is more than 20 minutes, if yes, executing 104; otherwise, execute 107;
104. Judging whether Time4 is greater than 30 minutes, if yes, starting a compressor preheating function, clearing related variables and marks, and executing 107;
105. Judging whether the Time2 is more than 3 minutes, if so, executing 106;
or judging whether the variable frequency compressor has a starting signal, if yes, judging whether Time3 is greater than 5 minutes, and if yes, executing 106;
or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, executing 106;
106. Exiting the compressor preheating function, and removing related variables and marks;
107. And exiting the preheating judging program.
The method controls the variable frequency compressor to start or exit the preheating function, so that the variable frequency compressor can be started stably in real time in a cold environment, the running efficiency of a system is enhanced, the safety and the reliability are improved, and the compatibility and the universality of driving software are improved.
The present invention includes, but is not limited to, the above-described embodiments, and while preferred embodiments of the present invention have been described, additional variations and modifications may be made to these embodiments by those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
The beneficial effects of the invention are as follows:
1. the entering and exiting judging logic of the preheating of the variable frequency compressor is executed in the main control software, and the main control board software is used for communicating and sending instructions to the driving board software to control the variable frequency compressor to carry out or exit the preheating, so that the compatibility and the reliability of the driving board software are ensured;
2. the exhaust temperature and the related time parameters of the variable frequency compressor are used as judging conditions for starting preheating, so that a model without an environmental temperature sensor can use the method, and the exhaust temperature sensor is basically provided for each variable frequency model air conditioner, thereby ensuring the universality of the method;
3. The exhaust temperature and the related time parameters of the variable frequency compressor which are easy to obtain are used as judging conditions for starting preheating, so that the variable frequency compressor can be timely and fully preheated before a user starts the variable frequency compressor; the exhaust temperature, the starting signal and the related time parameters of the variable frequency compressor which are easy to obtain are used as judging conditions for exiting preheating, so that the compressor can be ensured not to be in a preheating state all the time, and the excessively high energy consumption and the reduction of the safety and reliability are avoided.
The control method provided by the invention has the advantages that the used parameters can be obtained in variable frequency air conditioners of various types, and the universality is very strong. The method controls the variable frequency compressor to start or exit the preheating function, so that the variable frequency compressor can be started stably in real time in a cold environment, the running efficiency of a system is enhanced, the safety and reliability are improved, and the compatibility and the universality of driving software are improved.
Claims (5)
1. The preheating control method of the variable frequency compressor is characterized by comprising the following steps of:
Step 1, judging whether the variable frequency compressor is running a preheating function, if not, entering step 2; if yes, enter step 6;
Step 2, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold temperature, and if yes, entering a step 3; if not, exiting the preheating start judging program;
step 3, acquiring the downtime of the variable frequency compressor, judging whether the downtime is greater than a first specific time, and if yes, entering a step 4; if not, exiting the preheating start judging program;
step 4, acquiring a first duration after the last preheating is finished, judging whether the first duration is larger than a second specific time, and if yes, entering a step 5; if not, exiting the preheating start judging program;
step 5, starting a preheating function of the variable frequency compressor, and exiting a preheating starting judgment program;
step 6, obtaining a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the temperature of the exiting preheating threshold, judging whether the second duration time is greater than a third specific time, and if yes, entering a step 7;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current preheating measurement duration, and judging whether the current preheating measurement duration is greater than a fourth specific time, if so, entering a step 7;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, entering a step 7;
and 7, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
2. The method of claim 1, wherein in step 5, after starting the preheating function of the inverter compressor, the method further comprises: the relevant variables and flags are cleared.
3. The method of claim 1, wherein in step 7, after exiting the preheating function in which the compressor is running, further comprising: the relevant variables and flags are cleared.
4. The method of claim 1, wherein in step 6, the communication failure includes the main control board receiving no data of the driving board or receiving erroneous data for a set continuous time.
5. A variable frequency compressor warm-up control system for executing the variable frequency compressor warm-up control method according to any one of claims 1 to 4, characterized by comprising:
the variable frequency compressor main control board is used for judging whether the variable frequency compressor is running a preheating function, if the variable frequency compressor is not running the preheating function, acquiring the current exhaust temperature of the variable frequency compressor, judging whether the current exhaust temperature is smaller than a preheating starting threshold value, if yes, acquiring the downtime of the variable frequency compressor, judging whether the downtime is larger than a first specific time, if yes, acquiring the first duration after the last preheating is finished, judging whether the first preheating duration is larger than a second specific time, starting the preheating function of the variable frequency compressor, and exiting a preheating starting judging program;
If the variable frequency compressor is running the preheating function, acquiring a second duration time when the exhaust temperature of the variable frequency compressor continuously exceeds the exiting preheating threshold temperature, judging whether the second duration time is greater than a third specific time, if so, exiting the running preheating function of the compressor, and exiting the preheating exiting judging program;
Or judging whether the variable frequency compressor has a starting signal, if so, calculating the current prediction duration, judging whether the current prediction duration is larger than a fourth specific time, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program;
Or judging whether the main control board and the driving board of the variable frequency compressor have communication faults, if so, exiting the preheating function of the running compressor, and exiting the preheating exiting judging program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367344.2A CN113969889B (en) | 2021-11-18 | 2021-11-18 | Preheating control method and system for variable frequency compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111367344.2A CN113969889B (en) | 2021-11-18 | 2021-11-18 | Preheating control method and system for variable frequency compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113969889A CN113969889A (en) | 2022-01-25 |
| CN113969889B true CN113969889B (en) | 2024-05-14 |
Family
ID=79589936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111367344.2A Active CN113969889B (en) | 2021-11-18 | 2021-11-18 | Preheating control method and system for variable frequency compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113969889B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010003813A (en) * | 1999-06-25 | 2001-01-15 | 구자홍 | The preheating and starting method for a inverter air conditioner |
| KR20060065170A (en) * | 2004-12-10 | 2006-06-14 | 엘지전자 주식회사 | Control method of the invert compressor of a multi-type air conditioner |
| CN105004008A (en) * | 2015-07-20 | 2015-10-28 | 广东美的暖通设备有限公司 | Low-temperature start control method and system for frequency conversion air conditioner and air conditioner |
| CN105509253A (en) * | 2016-01-04 | 2016-04-20 | 青岛海尔空调器有限总公司 | Variable frequency air conditioner and control method thereof |
| CN105953359A (en) * | 2016-04-29 | 2016-09-21 | 广东美的制冷设备有限公司 | Electric heating structure and air conditioner compressor starting system and method |
| CN106196790A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of compressor assembly, the control device and method of preheating device of compressor |
| CN107354240A (en) * | 2017-08-21 | 2017-11-17 | 上海跃进医疗器械有限公司 | A kind of refrigerated constant temperature control method and incubator |
| CN107421076A (en) * | 2017-08-18 | 2017-12-01 | 广东美的暖通设备有限公司 | A kind of control method of air conditioner, control system and air conditioner |
| CN108374777A (en) * | 2018-01-22 | 2018-08-07 | 珠海格力电器股份有限公司 | A kind of compressor preheating control method, device, storage medium and equipment |
| CN109990438A (en) * | 2019-03-25 | 2019-07-09 | 宁波奥克斯电气股份有限公司 | A kind of control method and multi-connected machine device of multi-gang air-conditioner compressor preheating |
| CN110793170A (en) * | 2019-11-13 | 2020-02-14 | 四川长虹空调有限公司 | Judgment method for insufficient refrigerant of air conditioning system and air conditioner |
| CN110836552A (en) * | 2019-11-13 | 2020-02-25 | 广东美的暖通设备有限公司 | Starting method of heat pump system |
| CN111197836A (en) * | 2018-11-19 | 2020-05-26 | 奥克斯空调股份有限公司 | Intelligent detection method for air conditioner sensor falling and air conditioner |
| CN111765606A (en) * | 2020-06-10 | 2020-10-13 | 海信（山东）空调有限公司 | Method for controlling low-temperature heating start of air conditioner, air conditioner and storage medium |
| CN211737407U (en) * | 2019-12-26 | 2020-10-23 | 中山长虹电器有限公司 | Preheating system of compressor |
-
2021
- 2021-11-18 CN CN202111367344.2A patent/CN113969889B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010003813A (en) * | 1999-06-25 | 2001-01-15 | 구자홍 | The preheating and starting method for a inverter air conditioner |
| KR20060065170A (en) * | 2004-12-10 | 2006-06-14 | 엘지전자 주식회사 | Control method of the invert compressor of a multi-type air conditioner |
| CN105004008A (en) * | 2015-07-20 | 2015-10-28 | 广东美的暖通设备有限公司 | Low-temperature start control method and system for frequency conversion air conditioner and air conditioner |
| CN105509253A (en) * | 2016-01-04 | 2016-04-20 | 青岛海尔空调器有限总公司 | Variable frequency air conditioner and control method thereof |
| CN105953359A (en) * | 2016-04-29 | 2016-09-21 | 广东美的制冷设备有限公司 | Electric heating structure and air conditioner compressor starting system and method |
| CN106196790A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of compressor assembly, the control device and method of preheating device of compressor |
| CN107421076A (en) * | 2017-08-18 | 2017-12-01 | 广东美的暖通设备有限公司 | A kind of control method of air conditioner, control system and air conditioner |
| CN107354240A (en) * | 2017-08-21 | 2017-11-17 | 上海跃进医疗器械有限公司 | A kind of refrigerated constant temperature control method and incubator |
| CN108374777A (en) * | 2018-01-22 | 2018-08-07 | 珠海格力电器股份有限公司 | A kind of compressor preheating control method, device, storage medium and equipment |
| CN111197836A (en) * | 2018-11-19 | 2020-05-26 | 奥克斯空调股份有限公司 | Intelligent detection method for air conditioner sensor falling and air conditioner |
| CN109990438A (en) * | 2019-03-25 | 2019-07-09 | 宁波奥克斯电气股份有限公司 | A kind of control method and multi-connected machine device of multi-gang air-conditioner compressor preheating |
| CN110793170A (en) * | 2019-11-13 | 2020-02-14 | 四川长虹空调有限公司 | Judgment method for insufficient refrigerant of air conditioning system and air conditioner |
| CN110836552A (en) * | 2019-11-13 | 2020-02-25 | 广东美的暖通设备有限公司 | Starting method of heat pump system |
| CN211737407U (en) * | 2019-12-26 | 2020-10-23 | 中山长虹电器有限公司 | Preheating system of compressor |
| CN111765606A (en) * | 2020-06-10 | 2020-10-13 | 海信（山东）空调有限公司 | Method for controlling low-temperature heating start of air conditioner, air conditioner and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113969889A (en) | 2022-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102121741B (en) | Multi-connection air conditioning unit and control method thereof during small-load refrigeration running | |
| CN107917512B (en) | Control method and device of air conditioning system and air conditioner | |
| CN102538144A (en) | Control method of multi-connected air conditioning unit | |
| CN107388661A (en) | Solar air-conditioner system and its Poewr control method and device | |
| CN103386872A (en) | Hybrid power bus, double-compressor air-conditioning system and refrigeration control method of double-compressor air-conditioning system | |
| CN101737896A (en) | Control method for air conditioning device | |
| CN102305177B (en) | Wind generating set start control method and system | |
| CN107315405B (en) | Internet-based remote diagnosis system and method for unit self-starting control process | |
| CN107461844A (en) | Air-conditioning system and its Poewr control method and device | |
| CN111125933B (en) | Correction method and system for simulation model of central air conditioner | |
| KR100863649B1 (en) | Apparatus for driving a refrigerant compressor of a fuel cell vehicle and method for controlling the same | |
| CN201982343U (en) | Energy-saving control cabinet for fan | |
| CN201739001U (en) | High/low speed control circuit for two automobile fans | |
| CN201556078U (en) | Energy saving and noise reduction control system for smoke extractor | |
| CN113969889B (en) | Preheating control method and system for variable frequency compressor | |
| CN107289695A (en) | A kind of energy-saving control system of refrigeration compressor set | |
| CN101645602A (en) | Power load energy-saving management and control method and system | |
| CN104626917B (en) | The control method of electric automobile and electric automobile | |
| AU2018445437A1 (en) | Air-conditioning device, and electric energy processing method for air-conditioning device | |
| CN201637332U (en) | Intelligent controller for energy-saving operation of cooling tower | |
| CN111043729B (en) | Air conditioner control method and air conditioner control device for closed equipment room | |
| CN113865016A (en) | Air conditioning system control method and device and air conditioning system | |
| CN201795575U (en) | Energy-saving system of central air conditioner | |
| CN104896691A (en) | Air conditioner and operation control method therefor | |
| CN204787474U (en) | Water pump heat source host computer control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |