CN107255340A - Prevent the control method and control system of the overheat of compressor of transducer air conditioning - Google Patents
Prevent the control method and control system of the overheat of compressor of transducer air conditioning Download PDFInfo
- Publication number
- CN107255340A CN107255340A CN201710448991.3A CN201710448991A CN107255340A CN 107255340 A CN107255340 A CN 107255340A CN 201710448991 A CN201710448991 A CN 201710448991A CN 107255340 A CN107255340 A CN 107255340A
- Authority
- CN
- China
- Prior art keywords
- temperature
- compressor
- delivery
- control
- range
- 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
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004378 air conditioning Methods 0.000 title claims description 6
- 230000002159 abnormal effect Effects 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000036760 body temperature Effects 0.000 claims 7
- 238000005457 optimization Methods 0.000 claims 1
- 238000013021 overheating Methods 0.000 abstract description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 238000005070 sampling Methods 0.000 description 9
- 230000005856 abnormality Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
本发明涉及防止变频空调器的压缩机过热的控制方法及控制系统。该控制方法包括：获取述压缩机本体的温度和压缩机的排气温度；以及根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间控制压缩机执行相应的变频操作或异常停止操作。该控制系统包括用于获取温度的温度获取模块、用于确定温度区间和温差区间的比较模块和用于控制压缩机执行相应操作的控制模块。本发明能够更加准确地判断出压缩机的实际运行状态、精确地控制压缩机执行相应的变频或停止操作，避免单独采用排气温度这个单一的参数控制压缩机可能带来的一些列弊端，从而能够更加有效地防止变频空调器的压缩机过热。
The invention relates to a control method and a control system for preventing the overheating of a compressor of an inverter air conditioner. The control method includes: obtaining the temperature of the compressor body and the discharge temperature of the compressor; The temperature difference range where the value is located controls the compressor to perform the corresponding frequency conversion operation or abnormal stop operation. The control system includes a temperature acquisition module for acquiring temperature, a comparison module for determining the temperature range and temperature difference range, and a control module for controlling the compressor to perform corresponding operations. The present invention can more accurately judge the actual operating state of the compressor, accurately control the compressor to perform corresponding frequency conversion or stop operation, and avoid a series of disadvantages that may be caused by controlling the compressor with a single parameter of exhaust temperature, thereby It can more effectively prevent the compressor of the inverter air conditioner from overheating.
Description
技术领域technical field
本发明涉及空气调节技术，特别是涉及一种防止变频空调器的压缩机过热的控制方法及控制系统。The invention relates to air conditioning technology, in particular to a control method and control system for preventing overheating of a compressor of an inverter air conditioner.
背景技术Background technique
压缩机是将低压气体提升为高压气体的一种从动的流体机械，是制冷系统的心脏。压缩机的优劣直接影响了空调器的优劣。压缩机损坏只能更换，而更换一个压缩机的成本很高。从家用空调调研数据来看，原装压缩机大约占空调外机成本的20％，用户自己更换压缩机不仅很难匹配到原型号压缩机，更换费用也是很高的。因此对空调压缩机的保护就非常重要。The compressor is a driven fluid machine that lifts low-pressure gas into high-pressure gas, and is the heart of the refrigeration system. The quality of the compressor directly affects the quality of the air conditioner. Compressor damage can only be replaced, and the cost of replacing a compressor is high. According to the research data of household air conditioners, the original compressor accounts for about 20% of the cost of the external unit of the air conditioner. It is not only difficult for users to replace the compressor by themselves to match the original model compressor, but the replacement cost is also very high. Therefore, the protection of the air conditioner compressor is very important.
造成压缩机损坏的主要原因之一是压缩机过热，通常压缩机过热损坏主要由以下原因造成：①压机缺油；②环温、排回气等传感器故障，导致空调器不正常运行，原有保护失效；③压机排气口、节流装置堵塞；④缺少冷媒压机空运转等。压缩机过热导致的后果有退磁、卡缸、融化本体内的线圈绝缘脂、压机油变质。One of the main causes of compressor damage is the overheating of the compressor. Usually, the overheating damage of the compressor is mainly caused by the following reasons: ① lack of oil in the compressor; There are protection failures; ③The exhaust port of the compressor and the throttling device are blocked; ④Lack of refrigerant, the compressor is running dry, etc. The consequences of overheating of the compressor include demagnetization, cylinder blockage, melting of the coil insulation grease in the body, and deterioration of the compressor oil.
现有技术中，通常通过压缩机的排气温度判定其运行情况，调整其运行频率，从而降低压缩机本体的温度。此方法弊端在于当系统内严重缺气时，没有冷媒的循环，排气温并不高，也就达不到保护的目的。而此时压缩机在空运转，器本体缺油，摩擦产生的热量使其中部温度持续升高。另外，也可通过改善线圈质量、改善线圈绝缘脂的质量或改善油的质量来防止压缩机过热，但都需要开发新的材质，成本较高，周期较长，且结果难以预期。In the prior art, the operating condition of the compressor is usually judged by the discharge temperature of the compressor, and its operating frequency is adjusted to reduce the temperature of the compressor body. The disadvantage of this method is that when there is a severe lack of air in the system, there is no circulation of refrigerant, and the exhaust temperature is not high, so the purpose of protection cannot be achieved. At this time, the compressor is running empty, the body of the compressor is short of oil, and the heat generated by friction makes the temperature in the middle continue to rise. In addition, it is also possible to prevent the compressor from overheating by improving the quality of the coil, the quality of the coil insulating grease or the quality of the oil, but all of them require the development of new materials, the cost is high, the cycle is long, and the results are unpredictable.
发明内容Contents of the invention
本发明第一方面的一个目的旨在克服现有技术中的至少一个缺陷，提供一种能够有效防止变频空调器的压缩机过热的控制方法。An object of the first aspect of the present invention is to overcome at least one defect in the prior art and provide a control method capable of effectively preventing the compressor of an inverter air conditioner from overheating.
本发明第一方面的另一个目的是确保压缩机在额定最大制冷量和额定最大制热量工况下能够稳定地运行。Another object of the first aspect of the present invention is to ensure that the compressor can run stably under the condition of rated maximum cooling capacity and rated maximum heating capacity.
本发明第一方面的又一个目的是提高排气温度检测的准确性，避免出错。Another object of the first aspect of the present invention is to improve the accuracy of exhaust gas temperature detection and avoid mistakes.
本发明第二方面的目的是提供一种防止变频空调器的压缩机过热的控制系统。The object of the second aspect of the present invention is to provide a control system for preventing overheating of a compressor of an inverter air conditioner.
根据本发明的第一方面，本发明提供一种防止变频空调器的压缩机过热的控制方法，包括：According to the first aspect of the present invention, the present invention provides a control method for preventing the compressor of an inverter air conditioner from overheating, comprising:
获取所述压缩机本体的温度和所述压缩机的排气温度；以及obtaining the temperature of the compressor body and the discharge temperature of the compressor; and
根据所述压缩机的排气温度所在的温度区间、以及所述压缩机本体的温度与所述压缩机的排气温度之间的温差值所在的温差区间控制所述压缩机执行相应的变频操作或异常停止操作。According to the temperature range where the discharge temperature of the compressor is located and the temperature difference range where the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is located, the compressor is controlled to perform a corresponding frequency conversion operation or stop the operation abnormally.
可选地，在所述变频空调器处于其压缩机以最高频率运行的额定最大制冷量和额定最大制热量工况时，对应于所述压缩机异常停止的所述温度区间的最小端点值设置成大于在其他任一工况下对应于所述压缩机异常停止的所述温度区间的最小端点值。Optionally, when the inverter air conditioner is in the working condition of the rated maximum cooling capacity and the rated maximum heating capacity of the compressor running at the highest frequency, the minimum endpoint value of the temperature range corresponding to the abnormal stop of the compressor is set becomes greater than the minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under any other working condition.
可选地，根据所述压缩机的排气温度所在的温度区间、以及所述压缩机本体的温度与所述压缩机的排气温度之间的温差值所在的温差区间控制所述压缩机执行相应的变频操作或异常停止操作的步骤具体包括：Optionally, the execution of the compressor is controlled according to the temperature range in which the discharge temperature of the compressor is located and the temperature difference range in which the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is located. The steps of corresponding frequency conversion operation or abnormal stop operation include:
当所述压缩机的排气温度处于(0，T1]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(0，t1]的温差区间时，控制所述压缩机以第一速度V1快速升频；When the discharge temperature of the compressor is in the temperature range of (0, T 1 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature range of (0, t 1 ] interval, control the compressor to rapidly increase the frequency at the first speed V1;
当所述压缩机的排气温度处于(T1，T2]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t1，t2]的温差区间时，控制所述压缩机以第二速度V2慢速升频；When the discharge temperature of the compressor is in the temperature range of (T 1 , T 2 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the range of (t 1 , t 2 ] During the temperature difference interval, the compressor is controlled to increase the frequency slowly at the second speed V2;
当所述压缩机的排气温度处于(T2，T3]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t2，t3]的温差区间时，控制所述压缩机的频率保持不变；When the discharge temperature of the compressor is in the temperature interval of (T 2 , T 3 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the range of (t 2 , t 3 ] During the temperature difference interval, the frequency of controlling the compressor remains constant;
当所述压缩机的排气温度处于(T3，T4]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t3，t4]的温差区间时，控制所述压缩机以第二速度V3慢速降频；When the discharge temperature of the compressor is in the temperature interval of (T 3 , T 4 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in (t 3 , t 4 ] During the temperature difference interval, the compressor is controlled to lower the frequency at a slow speed at the second speed V3 ;
当所述压缩机的排气温度处于(T4，T5]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t4，t5]的温差区间时，控制所述压缩机以第二速度V4快速降频；以及When the discharge temperature of the compressor is in the temperature interval of (T 4 , T 5 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in (t 4 , t 5 ] During the temperature difference interval, the compressor is controlled to quickly reduce the frequency at the second speed V4 ; and
当所述压缩机的排气温度处于(T5，∞)的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时，控制所述压缩机执行异常停止操作；When the discharge temperature of the compressor is in the temperature interval of (T 5 , ∞) or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference of (t 5 , ∞) interval, control the compressor to perform an abnormal stop operation;
其中，T5>T4>T3>T2>T1，t5>t4>t3>t2>t1，V1>V2，V4>V3。Wherein, T 5 >T 4 >T 3 >T 2 >T 1 , t 5 >t 4 >t 3 >t 2 >t 1 , V 1 >V 2 , V 4 >V 3 .
可选地，在所述变频空调器处于其压缩机以最高频率运行的额定最大制冷量和额定最大制热量工况下，T1、T2、T3、T4、T5的值分别大于在其他任一工况下T1、T2、T3、T4、T5的值。Optionally, when the inverter air conditioner is in the rated maximum refrigerating capacity and rated maximum heating capacity operating condition of its compressor at the highest frequency, the values of T 1 , T 2 , T 3 , T 4 , and T 5 are respectively greater than Values of T 1 , T 2 , T 3 , T 4 , T 5 under any other working conditions.
可选地，在所述压缩机执行异常停止操作后，所述控制方法还包括：Optionally, after the compressor performs an abnormal stop operation, the control method further includes:
当所述压缩机异常停止的时长超过第一预设时长或所述压缩机的排气温度小于T1或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值小于t1时，控制所述压缩机重新启动运行。When the duration of abnormal stop of the compressor exceeds the first preset duration or the discharge temperature of the compressor is less than T1 or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is less than At t 1 , the compressor is controlled to restart operation.
可选地，当所述压缩机的排气温度处于(T5，∞)的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时，控制所述压缩机执行异常停止操作的步骤具体包括：Optionally, when the discharge temperature of the compressor is in the temperature interval of (T 5 , ∞) or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in (t 5 , ∞) temperature difference range, the steps of controlling the compressor to perform an abnormal stop operation specifically include:
当所述压缩机的排气温度超过T5、并持续第二预设时长后，按照预定的时间周期多次检测所述压缩机的排气温度，若每次测得的所述压缩机的排气温度均超过T5，则控制所述压缩机执行异常停止操作；或者When the discharge temperature of the compressor exceeds T 5 and lasts for a second preset time period, the discharge temperature of the compressor is detected multiple times according to the predetermined time period. If the temperature of the compressor measured each time If the discharge temperatures both exceed T 5 , the compressor is controlled to perform an abnormal stop operation; or
当所述压缩机本体的温度与所述压缩机的排气温度之间的温差值超过t5、并持续所述第二预设时长后，按照预定的时间周期多次检测所述压缩机本体的温度和所述压缩机的排气温度，并计算二者之间的温差值，若每次计算得出的温差值均超过t5，则控制所述压缩机执行异常停止操作。When the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor exceeds t 5 and lasts for the second preset time period, the compressor body is detected multiple times according to a predetermined time period temperature and the discharge temperature of the compressor, and calculate the temperature difference between them, if the temperature difference calculated each time exceeds t 5 , the compressor is controlled to perform an abnormal stop operation.
可选地，在获取所述压缩机本体的温度和所述压缩机的排气温度的步骤之前，所述控制方法还包括：Optionally, before the step of obtaining the temperature of the compressor body and the discharge temperature of the compressor, the control method further includes:
判断用于获取所述压缩机本体的温度和所述压缩机的排气温度的温度获取模块的运行是否存在异常，若是，则给出所述温度获取模块出现故障的指示；若否，则控制所述温度获取模块开始获取所述压缩机本体的温度和所述压缩机的排气温度。Judging whether there is abnormality in the operation of the temperature acquisition module used to acquire the temperature of the compressor body and the exhaust temperature of the compressor, if so, then give an indication that the temperature acquisition module has failed; if not, control The temperature acquisition module starts to acquire the temperature of the compressor body and the discharge temperature of the compressor.
根据本发明的第二方面，本发明还提供一种防止变频空调器的压缩机过热的控制系统，包括：According to the second aspect of the present invention, the present invention also provides a control system for preventing the compressor of an inverter air conditioner from overheating, including:
温度获取模块，用于获取所述压缩机本体的温度和所述压缩机的排气温度；a temperature acquisition module, configured to acquire the temperature of the compressor body and the discharge temperature of the compressor;
比较模块，用于将所述压缩机的排气温度与所述比较模块内预设的温度区间相比较、将所述压缩机本体的温度与所述排气温度之间的温差值与所述比较模块内预设的温差区间相比较，以确定所述压缩机的排气温度所在的温度区间、确定所述压缩机本体的温度与所述排气温度之间的温差值所在的温差区间；以及a comparison module, configured to compare the discharge temperature of the compressor with a preset temperature range in the comparison module, and compare the temperature difference between the temperature of the compressor body and the discharge temperature with the Comparing the preset temperature difference intervals in the comparison module to determine the temperature interval of the discharge temperature of the compressor, and to determine the temperature difference interval of the temperature difference between the temperature of the compressor body and the discharge temperature; as well as
控制模块，用于根据所述压缩机的排气温度所在的温度区间、以及所述压缩机本体的温度与所述压缩机的排气温度之间的温差值所在的温差区间控制所述压缩机执行相应的变频操作或异常停止操作。A control module, configured to control the compressor according to the temperature range in which the discharge temperature of the compressor is located and the temperature difference range in which the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is located Execute the corresponding frequency conversion operation or abnormal stop operation.
可选地，所述比较模块内预设的在所述压缩机以最高频率运行的额定最大制冷量工况和额定最大制热量工况下对应于所述压缩机异常停止的所述温度区间的最小端点值大于在其他任一工况下对应于压缩机异常停止的所述温度区间的最小端点值。Optionally, the temperature range corresponding to the abnormal stop of the compressor preset in the comparison module under the condition of rated maximum cooling capacity and rated maximum heating capacity of the compressor running at the highest frequency The minimum endpoint value is greater than the minimum endpoint value of the temperature range corresponding to abnormal stop of the compressor under any other working condition.
可选地，所述控制模块配置成在所述压缩机的排气温度处于(0，T1]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(0，t1]的温差区间时控制所述压缩机以第一速度V1快速升频、在所述压缩机的排气温度处于(T1，T2]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t1，t2]的温差区间时控制所述压缩机以第二速度V2慢速升频、在所述压缩机的排气温度处于(T2，T3]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t2，t3]的温差区间时控制所述压缩机的频率保持不变、在所述压缩机的排气温度处于(T3，T4]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t3，t4]的温差区间时控制所述压缩机以第二速度V3慢速降频、在所述压缩机的排气温度处于(T4，T5]的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t4，t5]的温差区间时控制所述压缩机以第二速度V4快速降频、在所述压缩机的排气温度处于(T5，∞)的温度区间或所述压缩机本体的温度与所述压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时控制所述压缩机执行异常停止操作；Optionally, the control module is configured such that when the discharge temperature of the compressor is in the temperature interval of (0, T 1 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor When the value is in the temperature difference interval of (0, t 1 ], the compressor is controlled to rapidly increase the frequency at the first speed V 1 , and when the discharge temperature of the compressor is in the temperature interval of (T 1 , T 2 ] or the When the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (t 1 , t 2 ], the compressor is controlled to increase the frequency slowly at the second speed V 2 , in the The discharge temperature of the compressor is in the temperature range of (T 2 , T 3 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature range of (t 2 , t 3 ] When controlling the frequency of the compressor to remain unchanged, when the discharge temperature of the compressor is in the temperature range (T 3 , T 4 ] or between the temperature of the compressor body and the discharge temperature of the compressor When the temperature difference value between is in the temperature difference interval of (t 3 , t 4 ], control the compressor to slow down the frequency at the second speed V 3 , when the discharge temperature of the compressor is in the range of (T 4 , T 5 ] When the temperature interval or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (t 4 , t 5 ], the compressor is controlled to rapidly reduce the frequency at the second speed V 4 , when the discharge temperature of the compressor is in the temperature interval (T 5 , ∞) or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in (t 5 , ∞) Controlling the compressor to perform an abnormal stop operation during the temperature difference interval;
其中，T5>T4>T3>T2>T1，t5>t4>t3>t2>t1，V1>V2，V4>V3。Wherein, T 5 >T 4 >T 3 >T 2 >T 1 , t 5 >t 4 >t 3 >t 2 >t 1 , V 1 >V 2 , V 4 >V 3 .
本发明的控制方法根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间这两个参数共同控制压缩机执行相应的变频操作或异常停止操作，能够更加准确地判断出压缩机的实际运行状态、精确地控制压缩机执行相应的变频或停止操作，避免单独采用排气温度这个单一的参数控制压缩机可能带来的一些列弊端，从而能够更加有效地防止变频空调器的压缩机过热。The control method of the present invention jointly controls the compressor to perform the corresponding operation according to the temperature range of the discharge temperature of the compressor and the temperature difference range of the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor. Frequency conversion operation or abnormal stop operation can more accurately judge the actual operating state of the compressor, accurately control the compressor to perform corresponding frequency conversion or stop operation, and avoid possible damage caused by controlling the compressor with a single parameter of exhaust temperature. A series of drawbacks, which can more effectively prevent the compressor of the inverter air conditioner from overheating.
进一步地，本发明将额定最大制冷量工况和额定最大制热量工况下的对应于压缩机异常停止的温度区间的最小端点值单独拿出来，使其独立于其他工况，并特别设计成大于其他任一工况下对应于压缩机异常停止的温度区间的最小端点值，即本发明提高了额定最大制冷量工况和额定最大制热量工况下促使压缩机异常停止运行的排气温度的阈值，由此，放宽了排气温度保护的范围，能够确保额定最大制冷量工况和额定最大制热量工况时压缩机的运行频率不波动，从而确保压缩机排气温度、空调器的制冷能力和整体功率等不波动，保证了空调器稳定运行。Further, the present invention separates the minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under the rated maximum cooling capacity condition and the rated maximum heating capacity condition, making it independent of other working conditions, and is specially designed as It is greater than the minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under any other working condition, that is, the present invention increases the discharge temperature that prompts the abnormal stop of the compressor under the rated maximum cooling capacity working condition and the rated maximum heating capacity working condition Therefore, the range of discharge temperature protection is relaxed, and it can ensure that the operating frequency of the compressor does not fluctuate under the condition of rated maximum cooling capacity and rated maximum heating capacity, thereby ensuring that the discharge temperature of the compressor and the air conditioner The refrigeration capacity and overall power do not fluctuate, which ensures the stable operation of the air conditioner.
进一步地，本发明按照预定的时间周期多次检测压缩机排气温度或多次检测压缩机本体的温度和压缩机的排气温度，并计算二者之间的温差值，当且仅当每次测得的排气温度均超过设定温度值时或每次计算得出的温差值均超过设定温差值时才控制压缩机执行异常停止操作，确保了排气温度检测的准确性，避免了因检测误差或其他非正常因素导致压缩机在不该停止的时候停止运行。Further, the present invention detects the discharge temperature of the compressor multiple times according to a predetermined time period or detects the temperature of the compressor body and the discharge temperature of the compressor multiple times, and calculates the temperature difference between the two, if and only if each When the discharge temperature measured every time exceeds the set temperature value or when the calculated temperature difference value exceeds the set temperature difference value each time, the compressor is controlled to perform abnormal stop operation, which ensures the accuracy of the discharge temperature detection and avoids In order to prevent the compressor from stopping when it should not be stopped due to detection errors or other abnormal factors.
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.
附图说明Description of drawings
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:
图1是根据本发明一个实施例的防止变频空调器的压缩机过热的控制方法的示意性流程图；1 is a schematic flow chart of a control method for preventing the overheating of a compressor of an inverter air conditioner according to an embodiment of the present invention;
图2是根据本发明另一个实施例的防止变频空调器的压缩机过热的控制方法的示意性流程图；2 is a schematic flow chart of a control method for preventing overheating of a compressor of an inverter air conditioner according to another embodiment of the present invention;
图3是根据本发明一个实施例的防止变频空调器的压缩机过热的控制系统的示意性结构框图。Fig. 3 is a schematic structural block diagram of a control system for preventing overheating of a compressor of an inverter air conditioner according to an embodiment of the present invention.
具体实施方式detailed description
本发明实施例首先提供一种防止变频空调器的压缩机过热的控制方法。图1是根据本发明一个实施例的防止变频空调器的压缩机过热的控制方法的示意性流程图。该控制包括如下步骤：Embodiments of the present invention firstly provide a control method for preventing overheating of a compressor of an inverter air conditioner. Fig. 1 is a schematic flowchart of a control method for preventing overheating of a compressor of an inverter air conditioner according to an embodiment of the present invention. This control includes the following steps:
步骤S102，获取压缩机本体的温度和压缩机的排气温度；以及Step S102, obtaining the temperature of the compressor body and the discharge temperature of the compressor; and
步骤S104，根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间控制压缩机执行相应的变频操作或异常停止操作。其中压缩机本体的温度优选为压缩机中部的温度，以使其更加接近压缩机本体的实际温度。Step S104, controlling the compressor to perform corresponding frequency conversion operation or abnormal stop operation according to the temperature interval of the discharge temperature of the compressor and the temperature difference interval between the temperature of the compressor body and the discharge temperature of the compressor. Wherein the temperature of the compressor body is preferably the temperature in the middle of the compressor, so as to make it closer to the actual temperature of the compressor body.
也就是说，本发明的控制方法根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间这两个参数共同控制压缩机执行相应的变频操作或异常停止操作，能够更加准确地判断出压缩机的实际运行状态，从而更加精确地控制压缩机执行相应的变频或停止操作，避免单独采用排气温度这个单一的参数控制压缩机可能带来的一些列弊端，从而能够更加有效地防止变频空调器的压缩机过热。That is to say, the control method of the present invention jointly controls the compression according to the two parameters of the temperature range where the discharge temperature of the compressor is located and the temperature difference range where the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is located. The machine performs the corresponding frequency conversion operation or abnormal stop operation, which can more accurately judge the actual operating state of the compressor, thereby more accurately controlling the compressor to perform the corresponding frequency conversion or stop operation, and avoiding the single parameter control of the exhaust temperature A series of disadvantages that the compressor may bring, so that the compressor of the inverter air conditioner can be more effectively prevented from overheating.
在本发明的一些实施例中，在变频空调器处于其压缩机以最高频率运行的额定最大制冷量和额定最大制热量工况时，对应于压缩机异常停止的温度区间的最小端点值设置成大于在其他任一工况下对应于压缩机异常停止的温度区间的最小端点值。具体地，在变频空调器的实际运行过程中，通常包括多种不同的工况，例如，除了额定最大制冷量和额定最大制热量之外，其他常见的工况还有额定制冷量、额定中间制冷量、额定制热量、额定中间制热量、定频低温制热量、制冷外环温限频、制热外环温限频、最大运行制冷、最大运行制热等。In some embodiments of the present invention, when the inverter air conditioner is in the condition of the rated maximum cooling capacity and the rated maximum heating capacity of its compressor running at the highest frequency, the minimum endpoint value of the temperature range corresponding to the abnormal stop of the compressor is set as Greater than the minimum endpoint value of the temperature range corresponding to compressor abnormal stop under any other working conditions. Specifically, in the actual operation of the inverter air conditioner, it usually includes a variety of different working conditions. For example, in addition to the rated maximum cooling capacity and rated maximum heating capacity, other common working conditions include rated cooling capacity, rated intermediate Cooling capacity, rated heating capacity, rated intermediate heating capacity, fixed-frequency low-temperature heating capacity, cooling outer ring temperature limit frequency, heating outer ring temperature frequency limit, maximum operating cooling, maximum operating heating, etc.
本发明将额定最大制冷量工况和额定最大制热量工况下的对应于压缩机异常停止的温度区间的最小端点值单独拿出来，使其独立于其他工况，并特别设计成大于其他任一工况下对应于压缩机异常停止的温度区间的最小端点值，即本发明提高了额定最大制冷量工况和额定最大制热量工况下促使压缩机异常停止运行的排气温度的阈值，由此，放宽了排气温度保护的范围，能够确保额定最大制冷量工况和额定最大制热量工况时压缩机的运行频率不波动，从而确保压缩机排气温度、空调器的制冷能力和整体功率等不波动，保证了空调器稳定运行。In the present invention, the minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under the rated maximum cooling capacity working condition and the rated maximum heating capacity working condition is independently taken out, making it independent of other working conditions, and specially designed to be larger than any other The minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under the first working condition, that is, the present invention increases the threshold value of the exhaust gas temperature that prompts the abnormal stop of the compressor under the rated maximum cooling capacity working condition and the rated maximum heating capacity working condition, As a result, the range of discharge temperature protection is relaxed, and it can ensure that the operating frequency of the compressor does not fluctuate under the rated maximum cooling capacity and rated maximum heating capacity conditions, thereby ensuring that the compressor discharge temperature, the cooling capacity of the air conditioner and The overall power does not fluctuate, which ensures the stable operation of the air conditioner.
在本发明的一些实施例中，根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间控制压缩机执行相应的变频操作或异常停止操作的步骤具体包括：In some embodiments of the present invention, the compressor is controlled to perform corresponding frequency conversion according to the temperature range in which the discharge temperature of the compressor is located and the temperature difference range in which the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is located. The specific steps for operation or abnormal stop operation include:
当压缩机的排气温度处于(0，T1]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(0，t1]的温差区间时，控制压缩机以第一速度V1快速升频；当压缩机的排气温度处于(T1，T2]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t1，t2]的温差区间时，控制压缩机以第二速度V2慢速升频；当压缩机的排气温度处于(T2，T3]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t2，t3]的温差区间时，控制压缩机的频率保持不变；当压缩机的排气温度处于(T3，T4]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t3，t4]的温差区间时，控制压缩机以第二速度V3慢速降频；当压缩机的排气温度处于(T4，T5]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t4，t5]的温差区间时，控制压缩机以第二速度V4快速降频；以及当压缩机的排气温度处于(T5，∞)的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时，控制压缩机执行异常停止操作；其中，T5>T4>T3>T2>T1，t5>t4>t3>t2>t1，V1>V2，V4>V3。上述对应于压缩机异常停止的温度区间和温差区间分别为(T5，∞)，该温度区间的最小端点值即为T5。也就是说，当压缩机的排气温度超过T5时，能够促使压缩机异常停止运行。When the discharge temperature of the compressor is in the temperature interval of (0, T 1 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (0, t 1 ], the compressor is controlled Rapid frequency increase at the first speed V 1 ; when the discharge temperature of the compressor is in the temperature range of (T 1 , T 2 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in (t 1 , t 2 ] in the temperature difference interval, control the compressor to increase the frequency slowly at the second speed V 2 ; when the discharge temperature of the compressor is in the temperature interval of (T 2 , T 3 ] or the temperature of the compressor When the temperature difference between the discharge temperatures of the compressor is in the temperature range of (t 2 , t 3 ], the frequency of the compressor remains constant; when the discharge temperature of the compressor is in the temperature range of (T 3 , T 4 ] or When the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (t 3 , t 4 ], the compressor is controlled to slow down at the second speed V 3 ; when the discharge of the compressor When the temperature is in the temperature interval of (T 4 , T 5 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (t 4 , t 5 ], the compressor is controlled to operate at the second speed V 4 rapid frequency reduction; and when the discharge temperature of the compressor is in the temperature range of (T 5 , ∞) or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the range of (t 5 , ∞) In the temperature difference range, control the compressor to perform abnormal stop operation; among them, T 5 >T 4 >T 3 >T 2 >T 1 , t 5 >t 4 >t 3 >t 2 >t 1 , V 1 >V 2 , V 4 >V 3 . The temperature interval and temperature difference interval corresponding to the abnormal stop of the compressor are respectively (T 5 , ∞), and the minimum end point value of this temperature interval is T 5 . That is to say, when the exhaust gas of the compressor When the temperature exceeds T5 , it can prompt the compressor to stop running abnormally.
也就是说，压缩机的每个变频操作(例如快速升频、慢速升频、快速降频或慢速降频)或异常停止操作都对应两个判断条件，一个是压缩机的排气温度，另一个是压缩机本体的温度与压缩机的排气温度之间的温差值，当其中任一个条件先满足时就执行相应的变频操作或异常停止操作。That is to say, each frequency conversion operation (such as fast frequency increase, slow frequency increase, rapid frequency decrease or slow frequency decrease) or abnormal stop operation of the compressor corresponds to two judgment conditions, one is the discharge temperature of the compressor , and the other is the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor. When any one of the conditions is met first, the corresponding frequency conversion operation or abnormal stop operation will be performed.
进一步地，T1、T2、T3、T4、T5、t1、t2、t3、t4、t5、V1、V2、V3和V4均为系统内预先设定的值。其中，V1可以等于V3，V2可以等于V4。具体地，在一个实施例中，V1和V3可以均为0.1赫兹每秒，V2和V4可以均为1赫兹每秒。Further, T 1 , T 2 , T 3 , T 4 , T 5 , t 1 , t 2 , t 3 , t 4 , t 5 , V 1 , V 2 , V 3 and V 4 are all preset in the system. set value. Wherein, V 1 may be equal to V 3 , and V 2 may be equal to V 4 . Specifically, in one embodiment, both V 1 and V 3 may be 0.1 Hz per second, and V 2 and V 4 may both be 1 Hz per second.
在本发明的一些实施例中，在变频空调器处于其压缩机以最高频率运行的额定最大制冷量和额定最大制热量工况下，T1、T2、T3、T4、T5的值分别大于在其他任一工况下T1、T2、T3、T4、T5的值。也就是说，在额定最大制冷量工况和额定最大制热量工况下，各个温度区间的端点值相较于其他工况都有所提高，从而确保了压缩机在升频和降频过程中的稳定性，进一步保证了压缩机在整个过程中均能够稳定运行。In some embodiments of the present invention, when the inverter air conditioner is in the rated maximum cooling capacity and rated maximum heating capacity operating condition of its compressor at the highest frequency, T 1 , T 2 , T 3 , T 4 , T 5 The values are respectively greater than the values of T 1 , T 2 , T 3 , T 4 , and T 5 under any other working conditions. That is to say, under the conditions of rated maximum cooling capacity and rated maximum heating capacity, the endpoint values of each temperature range are increased compared with other operating conditions, thus ensuring that the compressor is The stability further ensures that the compressor can run stably throughout the process.
具体地，在本发明的一个实施例中，在额定最大制冷量工况和额定最大制热量工况下，T1、T2、T3、T4、T5的值分别为98℃、105℃、108℃、112℃、117℃。在其他工况下，T1、T2、T3、T4、T5的值分别为88℃、91℃、95℃、100℃、105℃。也就是说，在其他工况下，当压缩机的排气温度升高至超过105℃后，压缩机就会受控地异常停止。在额定最大制冷量工况和额定最大制热量工况下，当压缩机的排气温度升高至超过117℃后，压缩机才会受控地异常停止。由此，可允许压缩机以最高频率保持稳定运行一定的时间而不停机。Specifically, in one embodiment of the present invention, under the conditions of rated maximum cooling capacity and rated maximum heating capacity, the values of T 1 , T 2 , T 3 , T 4 , and T 5 are respectively 98°C and 105 °C, 108 °C, 112 °C, 117 °C. Under other working conditions, the values of T 1 , T 2 , T 3 , T 4 , and T 5 are 88°C, 91°C, 95°C, 100°C, and 105°C, respectively. That is to say, under other working conditions, when the discharge temperature of the compressor rises above 105°C, the compressor will stop abnormally in a controlled manner. Under the condition of rated maximum cooling capacity and rated maximum heating capacity, when the discharge temperature of the compressor rises above 117°C, the compressor will stop abnormally in a controlled manner. Thus, the compressor can be allowed to run steadily at the highest frequency for a certain period of time without shutting down.
进一步地，在本发明的一个实施例中，在任一工况下，t1、t2、t3、t4、t5的值分别为30℃、40℃、50℃、60℃、70℃。Further, in an embodiment of the present invention, under any working condition, the values of t 1 , t 2 , t 3 , t 4 , and t 5 are respectively 30°C, 40°C, 50°C, 60°C, and 70°C .
在本发明的一些实施例中，在压缩机执行异常停止操作后，本发明的控制方法还包括：当压缩机异常停止的时长超过第一预设时长或压缩机的排气温度小于T1或压缩机本体的温度与压缩机的排气温度之间的温差值小于t1时，控制压缩机重新启动运行。也就是说，当压缩机异常停止的时长超过第一预设时长、压缩机的排气温度小于T1和压缩机本体的温度与压缩机的排气温度之间的温差值小于t1这三个条件中的任一个满足时，压缩机就可以重新恢复运行而不会损坏。第一预设时长为系统中预设的时间长度，其取值例如可以为3分钟。In some embodiments of the present invention, after the compressor performs an abnormal stop operation, the control method of the present invention further includes: when the duration of the abnormal stop of the compressor exceeds the first preset duration or the discharge temperature of the compressor is less than T1 or When the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is less than t1 , the compressor is controlled to restart. That is to say, when the duration of abnormal stop of the compressor exceeds the first preset duration, the discharge temperature of the compressor is less than T1 and the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is less than t1 When any one of these conditions is met, the compressor can resume operation without damage. The first preset duration is a preset duration in the system, and its value may be, for example, 3 minutes.
在本发明的一些实施例中，当压缩机的排气温度处于(T5，∞)的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时，控制压缩机执行异常停止操作的步骤具体包括：In some embodiments of the present invention, when the discharge temperature of the compressor is in the temperature range of (T 5 , ∞) or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the range of (t 5 , ∞ ), the steps for controlling the abnormal stop operation of the compressor include:
当压缩机的排气温度超过T5、并持续第二预设时长后，按照预定的时间周期多次检测压缩机的排气温度，若每次测得的压缩机的排气温度均超过T5，则控制压缩机执行异常停止操作；或者When the discharge temperature of the compressor exceeds T 5 and lasts for a second preset time, the discharge temperature of the compressor is detected multiple times according to the predetermined time period. If the discharge temperature of the compressor measured each time exceeds T 5 , then control the compressor to perform abnormal stop operation; or
当压缩机本体的温度与压缩机的排气温度之间的温差值超过t5、并持续第二预设时长后，按照预定的时间周期多次检测压缩机本体的温度和压缩机的排气温度，并计算二者之间的温差值，若每次计算得出的温差值均超过t5，则控制压缩机执行异常停止操作。When the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor exceeds t5 and lasts for a second preset time period, the temperature of the compressor body and the exhaust gas of the compressor are detected multiple times according to a predetermined time period temperature, and calculate the temperature difference between the two, if the temperature difference calculated each time exceeds t 5 , the compressor is controlled to perform an abnormal stop operation.
也就是说，在达到一定的条件时，本发明按照预定的时间周期多次检测压缩机排气温度或多次检测压缩机本体的温度和压缩机的排气温度，并计算二者之间的温差值，当且仅当每次测得的排气温度均超过设定温度值时或每次计算得出的温差值均超过设定温差值时才控制压缩机执行异常停止操作，确保了排气温度检测的准确性，避免了因检测误差或其他非正常因素导致压缩机在不该停止的时候停止运行。That is to say, when a certain condition is reached, the present invention detects the discharge temperature of the compressor multiple times according to a predetermined time period or detects the temperature of the compressor body and the discharge temperature of the compressor multiple times, and calculates the difference between the two. The temperature difference value, if and only when the measured exhaust gas temperature exceeds the set temperature value each time or when the calculated temperature difference value exceeds the set temperature difference value each time, the compressor is controlled to perform abnormal stop operation, ensuring that the discharge The accuracy of gas temperature detection avoids the compressor from stopping when it should not stop due to detection errors or other abnormal factors.
进一步地，第二预设时长和上述预定的时间周期均为系统中预设的时间长度，第二预设时长的取值例如可以为20秒，上述预定的时间周期例如可以为10分钟。具体地，本发明的控制方法可以每隔10分钟检测一次压缩机本体的温度和压缩机的排气温度，总共检测3次，若每次测得的排气温度均超过T5或每次计算得出的压缩机本体的温度与压缩机的排气温度之间的温差值均超过t5，则控制压缩机执行异常停止操作。当压缩机异常停止后，可发出声音、光字符或其他合适的提示或警示，将故障传送至室内或其他合适的地方。Further, both the second preset duration and the aforementioned predetermined time period are preset in the system, the value of the second preset duration may be, for example, 20 seconds, and the aforementioned predetermined time period may be, for example, 10 minutes. Specifically, the control method of the present invention can detect the temperature of the compressor body and the discharge temperature of the compressor every 10 minutes, and detect a total of 3 times. If the discharge temperature measured each time exceeds T5 or each calculation If the obtained temperature difference between the temperature of the compressor body and the discharge temperature of the compressor both exceeds t 5 , the compressor is controlled to perform an abnormal stop operation. When the compressor stops abnormally, sound, light characters or other suitable prompts or warnings can be issued to transmit the fault to the room or other suitable places.
在本发明的一些实施例中，获取压缩机本体的温度和压缩机的排气温度的步骤具体包括：按照预设的时间周期检测压缩机本体的温度和压缩机的排气温度n次，并取n次检测结果的平均值作为所获取到的压缩机本体的温度和压缩机的排气温度。In some embodiments of the present invention, the step of obtaining the temperature of the compressor body and the discharge temperature of the compressor specifically includes: detecting the temperature of the compressor body and the discharge temperature of the compressor n times according to a preset time period, and The average value of the n detection results is taken as the acquired temperature of the compressor body and the discharge temperature of the compressor.
进一步地，每次检测压缩机本体的温度和压缩机的排气温度的操作均包括：对压缩机本体的温度和压缩机的排气温度进行连续m次的采样，并按照大小对采样结果进行排序，取排序后的中间两个采样结果的平均值作为本次检测所测得的压缩机本体的温度和排气温度，其中，n为大于等于10的整数，m为大于等于2的偶数。Further, each operation of detecting the temperature of the compressor body and the discharge temperature of the compressor includes: continuously sampling the temperature of the compressor body and the discharge temperature of the compressor for m times, and sorting the sampling results according to the size For sorting, take the average value of the middle two sampling results after sorting as the temperature of the compressor body and exhaust temperature measured in this test, where n is an integer greater than or equal to 10, and m is an even number greater than or equal to 2.
也就是说，本发明通过多次检测取平均值的方法获取压缩机本体的温度和压缩机的排气温度，并且每次检测均通过多次采样，并取按照大小排序后的中间两个值的平均值作为本次检测结果，提高了温度检测的准确性。That is to say, the present invention obtains the temperature of the compressor body and the discharge temperature of the compressor by taking the average value of multiple detections, and each detection passes multiple samplings, and takes the middle two values sorted by size The average value is used as the test result, which improves the accuracy of temperature detection.
具体地，上述预设的时间周期、以及m和n均为系统内预设的参数。在一个实施例中，m和n可分别为8和100，上述预设的时间周期例如可以为5毫秒。即温度获取模块可以每间隔5毫秒的时间检测一次压缩机本体的温度和压缩机的排气温度，一共检测100次，取100次检测结果的平均值作为获取到的压缩机本体的温度和压缩机的排气温度。在每次检测的过程中，温度获取模块均采用对压缩机本体的温度和排气温度进行连续采样8次的检测方式，然后再按照大小对8次采样结果进行排序，最后取排序后的中间两个值的平均值作为本次测得的压缩机本体的温度和排气温度。Specifically, the aforementioned preset time period, m and n are all preset parameters in the system. In an embodiment, m and n may be 8 and 100 respectively, and the preset time period may be, for example, 5 milliseconds. That is, the temperature acquisition module can detect the temperature of the compressor body and the discharge temperature of the compressor every 5 milliseconds, a total of 100 detections, and take the average value of the 100 detection results as the acquired temperature and compression of the compressor body. machine exhaust temperature. In the process of each detection, the temperature acquisition module adopts the detection method of continuously sampling the temperature of the compressor body and the exhaust temperature for 8 times, and then sorts the 8 sampling results according to the size, and finally takes the sorted middle The average value of the two values is used as the temperature of the compressor body and the discharge temperature measured this time.
图2是根据本发明另一个实施例的防止变频空调器的压缩机过热的控制方法的示意性流程图。在本发明的另一些实施例中，在获取压缩机本体的温度和压缩机的排气温度的步骤之前，本发明的控制方法还包括：判断用于获取压缩机本体的温度和压缩机的排气温度的温度获取模块的运行是否存在异常，若是，则给出温度获取模块出现故障的指示；若否，则控制温度获取模块开始获取压缩机本体的温度和压缩机的排气温度。也就是说，在本发明的另一些实施例中，本发明的控制方法还包括：步骤S101，判断用于获取压缩机本体的温度和压缩机的排气温度的温度获取模块的运行是否存在异常。若是，则转步骤S103：给出温度获取模块出现故障的指示；若否，则转步骤S102：获取压缩机本体的温度和压缩机的排气温度。Fig. 2 is a schematic flowchart of a control method for preventing overheating of a compressor of an inverter air conditioner according to another embodiment of the present invention. In some other embodiments of the present invention, before the step of obtaining the temperature of the compressor body and the discharge temperature of the compressor, the control method of the present invention further includes: judging Whether there is abnormality in the operation of the temperature acquisition module of gas temperature, if so, then give the instruction that temperature acquisition module breaks down; If not, then control temperature acquisition module and start to acquire the temperature of compressor body and the discharge temperature of compressor. That is to say, in other embodiments of the present invention, the control method of the present invention further includes: Step S101, judging whether there is any abnormality in the operation of the temperature acquisition module used to acquire the temperature of the compressor body and the discharge temperature of the compressor . If yes, go to step S103: give an indication that the temperature acquisition module is faulty; if not, go to step S102: get the temperature of the compressor body and the discharge temperature of the compressor.
进一步地，温度获取模块可以为温度传感器，可以通过检测其电阻值是否超过预设的阈值来判定其是否出现故障。一般来讲，若温度获取模块存在故障，则必须在压缩机开启后的十分钟后报警。Furthermore, the temperature acquisition module can be a temperature sensor, and it can be determined whether it is faulty by detecting whether its resistance value exceeds a preset threshold. Generally speaking, if there is a fault in the temperature acquisition module, the alarm must be reported ten minutes after the compressor is turned on.
本发明实施例还提供一种防止变频空调器的压缩机过热的控制系统。图3是根据本发明一个实施例的防止变频空调器的压缩机过热的控制系统的示意性结构框图。该控制系统包括温度获取模块20、比较模块30和控制模块40。温度获取模块20用于获取压缩机本体的温度和压缩机的排气温度。比较模块30用于将压缩机的排气温度与比较模块内预设的温度区间相比较、将压缩机本体的温度与排气温度之间的温差值与比较模块内预设的温差区间相比较，以确定压缩机的排气温度所在的温度区间、确定压缩机本体的温度与排气温度之间的温差值所在的温差区间。控制模块40用于根据压缩机的排气温度所在的温度区间、以及压缩机本体的温度与压缩机的排气温度之间的温差值所在的温差区间控制压缩机执行相应的变频操作或异常停止操作。The embodiment of the present invention also provides a control system for preventing the compressor of the inverter air conditioner from overheating. Fig. 3 is a schematic structural block diagram of a control system for preventing overheating of a compressor of an inverter air conditioner according to an embodiment of the present invention. The control system includes a temperature acquisition module 20 , a comparison module 30 and a control module 40 . The temperature acquiring module 20 is used to acquire the temperature of the compressor body and the discharge temperature of the compressor. The comparison module 30 is used to compare the discharge temperature of the compressor with the preset temperature range in the comparison module, and compare the temperature difference between the temperature of the compressor body and the discharge temperature with the preset temperature difference range in the comparison module , so as to determine the temperature range in which the discharge temperature of the compressor is located, and determine the temperature difference range in which the temperature difference between the temperature of the compressor body and the discharge temperature is located. The control module 40 is used to control the compressor to perform corresponding frequency conversion operation or stop abnormally according to the temperature range of the discharge temperature of the compressor and the temperature difference value between the temperature of the compressor body and the discharge temperature of the compressor. operate.
在本发明的一些实施例中，比较模块30内预设的在压缩机以最高频率运行的额定最大制冷量工况和额定最大制热量工况下对应于压缩机异常停止的温度区间的最小端点值大于在其他任一工况下对应于压缩机异常停止的温度区间的最小端点值。也即是，比较模块30内预设的在额定最大制冷量工况和额定最大制热量工况下，促使压缩机异常停止的温度阈值大于在其他任一工况下促使压缩机异常停止的温度阈值。由此，放宽了排气温度保护的范围，能够确保在上述两种工况下压缩机的运行频率不波动，从而确保压缩机排气温度、空调器的制冷能力和整体功率等不波动，保证了空调器稳定运行。In some embodiments of the present invention, the minimum end point of the temperature interval corresponding to the abnormal stop of the compressor is preset in the comparison module 30 under the condition of the rated maximum cooling capacity and the rated maximum heating capacity of the compressor running at the highest frequency The value is greater than the minimum endpoint value of the temperature interval corresponding to the abnormal stop of the compressor under any other operating conditions. That is to say, the temperature threshold that prompts the compressor to stop abnormally under the rated maximum cooling capacity and rated maximum heating capacity preset in the comparison module 30 is greater than the temperature that prompts the compressor to stop abnormally under any other working condition threshold. As a result, the range of exhaust temperature protection is relaxed, and it can ensure that the operating frequency of the compressor does not fluctuate under the above two working conditions, thereby ensuring that the compressor exhaust temperature, the cooling capacity of the air conditioner, and the overall power do not fluctuate, ensuring The air conditioner runs stably.
在本发明的一些实施例中，控制模块40配置成在压缩机的排气温度处于(0，T1]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(0，t1]的温差区间时控制压缩机以第一速度V1快速升频、在压缩机的排气温度处于(T1，T2]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t1，t2]的温差区间时控制压缩机以第二速度V2慢速升频、在压缩机的排气温度处于(T2，T3]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t2，t3]的温差区间时控制压缩机的频率保持不变、在压缩机的排气温度处于(T3，T4]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t3，t4]的温差区间时控制压缩机以第二速度V3慢速降频、在压缩机的排气温度处于(T4，T5]的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t4，t5]的温差区间时控制压缩机以第二速度V4快速降频、在压缩机的排气温度处于(T5，∞)的温度区间或压缩机本体的温度与压缩机的排气温度之间的温差值处于(t5，∞)的温差区间时控制压缩机执行异常停止操作；其中，T5>T4>T3>T2>T1，t5>t4>t3>t2>t1，V1>V2，V4>V3。上述对应于压缩机异常停止的温度区间即为(T5，∞)，该温度区间的最小端点值即为T5。也就是说，当压缩机的排气温度超过T5时，能够促使压缩机异常停止运行。In some embodiments of the present invention, the control module 40 is configured such that when the discharge temperature of the compressor is in the temperature interval (0, T 1 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is at (0, t 1 ] in the temperature difference interval, the compressor is controlled to increase the frequency rapidly at the first speed V 1 , when the discharge temperature of the compressor is in the temperature interval of (T 1 , T 2 ] or the temperature of the compressor body and the temperature of the compressor When the temperature difference between the discharge temperatures of the compressors is in the temperature range of (t 1 , t 2 ], the compressor is controlled to increase the frequency slowly at the second speed V 2 , and when the discharge temperature of the compressor is in the range of (T 2 , T 3 ] The frequency of the compressor is kept constant when the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference range of (t 2 , t 3 ], and when the discharge temperature of the compressor is at (T 3 , T 4 ] temperature interval or when the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature difference interval of (t 3 , t 4 ], the compressor is controlled to slow down at the second speed V 3 Speed-down frequency, when the discharge temperature of the compressor is in the temperature range of (T 4 , T 5 ] or the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor is in the temperature range of (t 4 , t 5 ] In the interval, the compressor is controlled to rapidly reduce the frequency at the second speed V 4 , and the temperature difference between the temperature of the compressor body and the exhaust temperature of the compressor is in the temperature interval where the discharge temperature of the compressor is (T 5 , ∞) When in the temperature difference interval of (t 5 , ∞), control the compressor to perform abnormal stop operation; among them, T 5 >T 4 >T 3 >T 2 >T 1 , t 5 >t 4 >t 3 >t 2 >t 1 , V 1 >V 2 , V 4 >V 3 . The above-mentioned temperature interval corresponding to the abnormal stop of the compressor is (T 5 , ∞), and the minimum endpoint value of this temperature interval is T 5 . That is to say, when the compressor When the exhaust temperature of the compressor exceeds T5 , it can prompt the compressor to stop running abnormally.
在本发明的一些实施例中，比较模块30内预设的在额定最大制冷量工况和额定最大制热量工况下的T1、T2、T3、T4、T5的值分别大于其内预设的在其他任一工况下T1、T2、T3、T4、T5的值。也就是说，在额定最大制冷量工况和额定最大制热量工况下，各个温度区间的端点值相较于其他工况都有所提高，从而确保了压缩机在升频和降频过程中的稳定性，进一步保证了压缩机的稳定运行。In some embodiments of the present invention, the values of T 1 , T 2 , T 3 , T 4 , and T 5 preset in the comparison module 30 under the conditions of rated maximum cooling capacity and rated maximum heating capacity are respectively greater than The preset values of T 1 , T 2 , T 3 , T 4 , and T 5 under any other working conditions. That is to say, under the conditions of rated maximum cooling capacity and rated maximum heating capacity, the endpoint values of each temperature range are increased compared with other operating conditions, thus ensuring that the compressor is The stability further ensures the stable operation of the compressor.
在本发明的一些实施例中，控制模块40还配置成当压缩机异常停止的时长超过第一预设时长或压缩机的排气温度小于T1或压缩机本体的温度与压缩机的排气温度之间的温差值小于t1时，控制压缩机重新启动运行。In some embodiments of the present invention, the control module 40 is further configured to: when the abnormally stopped duration of the compressor exceeds the first preset duration or the discharge temperature of the compressor is less than T1 or the temperature of the compressor body is the same as the discharge temperature of the compressor When the temperature difference between the temperatures is less than t1 , the compressor is controlled to restart.
在本发明的一些实施例中，控制模块40还配置成当压缩机的排气温度超过T5、并持续第二预设时长后，控制温度获取模块20按照预定的时间周期多次检测压缩机的排气温度，并在每次测得的压缩机的排气温度均超过T5时控制压缩机异常停止，以避免因检测误差或其他非正常因素导致压缩机在不该停止的时候停止运行。或者，控制模块40还配置成当压缩机本体的温度与压缩机的排气温度之间的温差值超过t5、并持续第二预设时长后，控制温度获取模块20按照预定的时间周期多次检测压缩机本体的温度和压缩机的排气温度，并计算二者之间的温差值，若每次计算得出的温差值均超过t5，则控制压缩机执行异常停止操作，以避免因检测误差或其他非正常因素导致压缩机在不该停止的时候停止运行。In some embodiments of the present invention, the control module 40 is further configured to control the temperature acquisition module 20 to detect the compressor multiple times according to a predetermined time period after the discharge temperature of the compressor exceeds T 5 for a second preset time period. The exhaust temperature of the compressor, and control the compressor to stop abnormally when the measured exhaust temperature of the compressor exceeds T5 each time, so as to avoid the compressor from stopping when it should not be stopped due to detection errors or other abnormal factors . Alternatively, the control module 40 is further configured to control the temperature acquisition module 20 to control the temperature acquisition module 20 to increase the temperature according to a predetermined time period when the temperature difference between the temperature of the compressor body and the discharge temperature of the compressor exceeds t 5 and lasts for a second preset time period. Detect the temperature of the compressor body and the discharge temperature of the compressor for a second time, and calculate the temperature difference between them. If the temperature difference calculated each time exceeds t 5 , the compressor will be controlled to perform an abnormal stop operation to avoid The compressor stops running when it should not be stopped due to detection errors or other abnormal factors.
在本发明的一些实施例中，控制模块40还配置成在获取压缩机本体的温度和压缩机的排气温度时控制温度获取模块20按照预设的时间周期检测压缩机本体的温度和压缩机的排气温度n次，并取n次检测结果的平均值作为所获取到的压缩机本体的温度和压缩机的排气温度。In some embodiments of the present invention, the control module 40 is also configured to control the temperature acquisition module 20 to detect the temperature of the compressor body and the temperature of the compressor body according to a preset time period when acquiring the temperature of the compressor body and the discharge temperature of the compressor. The discharge temperature of the compressor is n times, and the average value of the detection results of n times is taken as the obtained temperature of the compressor body and the discharge temperature of the compressor.
在本发明的一些实施例中，控制模块40还配置成在每次检测压缩机本体的温度和压缩机的排气温度时均控制温度获取模块20对压缩机本体的温度和排气温度进行连续m次的采样，并按照大小对采样结果进行排序，取排序后的中间两个采样结果的平均值作为本次检测所测得的压缩机本体的温度和排气温度。In some embodiments of the present invention, the control module 40 is also configured to control the temperature acquisition module 20 to continuously measure the temperature of the compressor body and the discharge temperature of the compressor each time the temperature of the compressor body and the discharge temperature of the compressor are detected. Sampling for m times, sorting the sampling results according to the size, and taking the average value of the middle two sampling results after sorting as the temperature of the compressor body and the exhaust temperature measured in this test.
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448991.3A CN107255340B (en) | 2017-06-14 | 2017-06-14 | Control method and control system for preventing compressor of inverter air conditioner from overheating |
| PCT/CN2018/087627 WO2018228135A1 (en) | 2017-06-14 | 2018-05-21 | Control method and system for preventing compressor overheating of variable-frequency air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710448991.3A CN107255340B (en) | 2017-06-14 | 2017-06-14 | Control method and control system for preventing compressor of inverter air conditioner from overheating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255340A true CN107255340A (en) | 2017-10-17 |
| CN107255340B CN107255340B (en) | 2020-02-04 |
Family
ID=60024077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710448991.3A Active CN107255340B (en) | 2017-06-14 | 2017-06-14 | Control method and control system for preventing compressor of inverter air conditioner from overheating |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107255340B (en) |
| WO (1) | WO2018228135A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361929A (en) * | 2018-02-11 | 2018-08-03 | 广东美的制冷设备有限公司 | Control method and control device, storage medium and mobile air-conditioner |
| CN108592167A (en) * | 2018-04-04 | 2018-09-28 | 深圳市深蓝新能源电气有限公司 | Frequency conversion heat pump driver temperature-control circuit |
| WO2018228135A1 (en) * | 2017-06-14 | 2018-12-20 | 青岛海尔空调器有限总公司 | Control method and system for preventing compressor overheating of variable-frequency air conditioner |
| CN109099636A (en) * | 2018-07-23 | 2018-12-28 | 青岛海尔股份有限公司 | Refrigerator and its compressor frequency control method |
| CN109282546A (en) * | 2018-09-27 | 2019-01-29 | 珠海格力电器股份有限公司 | Detection method and detection system for heat pump dryer |
| CN109945430A (en) * | 2019-03-13 | 2019-06-28 | 珠海格力电器股份有限公司 | Operation protection method, device and system for base crane and base crane |
| CN110030707A (en) * | 2019-04-04 | 2019-07-19 | 广东美的暖通设备有限公司 | Air-conditioning system adjusting method, air conditioner and computer readable storage medium |
| CN111023420A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | A kind of compressor quick start control method, device, air conditioner and storage medium |
| CN111219859A (en) * | 2018-11-23 | 2020-06-02 | 奥克斯空调股份有限公司 | Air conditioner operation frequency protection method and air conditioner |
| CN111397140A (en) * | 2020-04-14 | 2020-07-10 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
| CN112197408A (en) * | 2020-10-13 | 2021-01-08 | 广东美的制冷设备有限公司 | Heating control method of compressor winding, air conditioner control method, system and equipment |
| CN112984706A (en) * | 2021-03-23 | 2021-06-18 | 深圳市亿凌捷科技有限公司 | Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet |
| CN113654224A (en) * | 2021-07-26 | 2021-11-16 | 青岛海尔空调器有限总公司 | Frequency control method, device and air conditioner for air conditioner compressor |
| CN113983580A (en) * | 2021-11-02 | 2022-01-28 | 珠海格力电器股份有限公司 | Kitchen air conditioner, control method and control device thereof, and processor |
| WO2023015899A1 (en) * | 2021-08-13 | 2023-02-16 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling frequency stability of air conditioner compressor, and electronic device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295363A (en) * | 1991-10-11 | 1994-03-22 | Kabushiki Kaisha Toshiba | Method and apparatus of controlling a compressor of an air conditioner |
| KR100237930B1 (en) * | 1997-11-17 | 2000-01-15 | 오상수 | Compressor control method of inverter air conditioner |
| CN1079150C (en) * | 1994-06-28 | 2002-02-13 | 三星电子株式会社 | Air conditioner controlling device and method |
| KR20050034084A (en) * | 2003-10-08 | 2005-04-14 | 위니아만도 주식회사 | Method for controlling exhausted temperature by compressor of multi type air-conditioner |
| CN202132231U (en) * | 2011-06-13 | 2012-02-01 | 广州日立压缩机有限公司 | DC variable-frequency vortex compressor with built-in overcurrent and overheat protector |
| CN102606481A (en) * | 2011-01-25 | 2012-07-25 | 广东美芝制冷设备有限公司 | Anti-overheating device for rotary compressor |
| CN102639943A (en) * | 2010-02-15 | 2012-08-15 | 三菱重工业株式会社 | Air conditioner |
| CN105091424A (en) * | 2015-09-10 | 2015-11-25 | Tcl空调器(中山)有限公司 | Air conditioner, air conditioner refrigerant adjustment method and device |
| CN106839260A (en) * | 2016-12-12 | 2017-06-13 | 广东芬尼克兹节能设备有限公司 | One kind exhaust protection control method and system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001032772A (en) * | 1999-07-19 | 2001-02-06 | Daikin Ind Ltd | Compressor and refrigeration equipment |
| CN102261719B (en) * | 2011-05-25 | 2013-06-05 | 宁波奥克斯电气有限公司 | Control method for starting heating mode of screw-type compressed multi-connected central air conditioner |
| CN104848600A (en) * | 2015-06-08 | 2015-08-19 | 山东新华医疗器械股份有限公司 | Refrigeration compressor protecting system of freeze dryer |
| CN105783306A (en) * | 2016-04-29 | 2016-07-20 | 广东美的制冷设备有限公司 | Control method of cold-warm type air conditioner |
| CN106766421B (en) * | 2016-11-30 | 2019-09-17 | 广东美的制冷设备有限公司 | A kind of control method of the electric expansion valve for air-conditioning system |
| CN107255340B (en) * | 2017-06-14 | 2020-02-04 | 青岛海尔空调器有限总公司 | Control method and control system for preventing compressor of inverter air conditioner from overheating |
-
2017
- 2017-06-14 CN CN201710448991.3A patent/CN107255340B/en active Active
-
2018
- 2018-05-21 WO PCT/CN2018/087627 patent/WO2018228135A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295363A (en) * | 1991-10-11 | 1994-03-22 | Kabushiki Kaisha Toshiba | Method and apparatus of controlling a compressor of an air conditioner |
| CN1079150C (en) * | 1994-06-28 | 2002-02-13 | 三星电子株式会社 | Air conditioner controlling device and method |
| KR100237930B1 (en) * | 1997-11-17 | 2000-01-15 | 오상수 | Compressor control method of inverter air conditioner |
| KR20050034084A (en) * | 2003-10-08 | 2005-04-14 | 위니아만도 주식회사 | Method for controlling exhausted temperature by compressor of multi type air-conditioner |
| CN102639943A (en) * | 2010-02-15 | 2012-08-15 | 三菱重工业株式会社 | Air conditioner |
| CN102606481A (en) * | 2011-01-25 | 2012-07-25 | 广东美芝制冷设备有限公司 | Anti-overheating device for rotary compressor |
| CN202132231U (en) * | 2011-06-13 | 2012-02-01 | 广州日立压缩机有限公司 | DC variable-frequency vortex compressor with built-in overcurrent and overheat protector |
| CN105091424A (en) * | 2015-09-10 | 2015-11-25 | Tcl空调器(中山)有限公司 | Air conditioner, air conditioner refrigerant adjustment method and device |
| CN106839260A (en) * | 2016-12-12 | 2017-06-13 | 广东芬尼克兹节能设备有限公司 | One kind exhaust protection control method and system |
Non-Patent Citations (1)
| Title |
|---|
| 夏云铧: "《中央空调系统应用与维修》", 30 September 2009, 机械工业出版社 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018228135A1 (en) * | 2017-06-14 | 2018-12-20 | 青岛海尔空调器有限总公司 | Control method and system for preventing compressor overheating of variable-frequency air conditioner |
| CN108361929A (en) * | 2018-02-11 | 2018-08-03 | 广东美的制冷设备有限公司 | Control method and control device, storage medium and mobile air-conditioner |
| CN108592167A (en) * | 2018-04-04 | 2018-09-28 | 深圳市深蓝新能源电气有限公司 | Frequency conversion heat pump driver temperature-control circuit |
| CN109099636A (en) * | 2018-07-23 | 2018-12-28 | 青岛海尔股份有限公司 | Refrigerator and its compressor frequency control method |
| CN109099636B (en) * | 2018-07-23 | 2021-04-20 | 海尔智家股份有限公司 | Refrigerator and compressor frequency control method thereof |
| CN109282546A (en) * | 2018-09-27 | 2019-01-29 | 珠海格力电器股份有限公司 | Detection method and detection system for heat pump dryer |
| CN111219859B (en) * | 2018-11-23 | 2021-07-06 | 奥克斯空调股份有限公司 | Air conditioner operation frequency protection method and air conditioner |
| CN111219859A (en) * | 2018-11-23 | 2020-06-02 | 奥克斯空调股份有限公司 | Air conditioner operation frequency protection method and air conditioner |
| CN109945430A (en) * | 2019-03-13 | 2019-06-28 | 珠海格力电器股份有限公司 | Operation protection method, device and system for base crane and base crane |
| CN110030707A (en) * | 2019-04-04 | 2019-07-19 | 广东美的暖通设备有限公司 | Air-conditioning system adjusting method, air conditioner and computer readable storage medium |
| CN111023420A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | A kind of compressor quick start control method, device, air conditioner and storage medium |
| CN111023420B (en) * | 2019-12-27 | 2021-08-20 | 宁波奥克斯电气股份有限公司 | A kind of compressor quick start control method, device, air conditioner and storage medium |
| CN111397140A (en) * | 2020-04-14 | 2020-07-10 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
| CN112197408A (en) * | 2020-10-13 | 2021-01-08 | 广东美的制冷设备有限公司 | Heating control method of compressor winding, air conditioner control method, system and equipment |
| CN112197408B (en) * | 2020-10-13 | 2022-04-01 | 广东美的制冷设备有限公司 | Heating control method of compressor winding, air conditioner control method, system and equipment |
| CN112984706A (en) * | 2021-03-23 | 2021-06-18 | 深圳市亿凌捷科技有限公司 | Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet |
| CN113654224A (en) * | 2021-07-26 | 2021-11-16 | 青岛海尔空调器有限总公司 | Frequency control method, device and air conditioner for air conditioner compressor |
| WO2023005241A1 (en) * | 2021-07-26 | 2023-02-02 | 青岛海尔空调器有限总公司 | Frequency control method and device for air conditioner compressor, and air conditioner |
| WO2023015899A1 (en) * | 2021-08-13 | 2023-02-16 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling frequency stability of air conditioner compressor, and electronic device |
| CN113983580A (en) * | 2021-11-02 | 2022-01-28 | 珠海格力电器股份有限公司 | Kitchen air conditioner, control method and control device thereof, and processor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018228135A1 (en) | 2018-12-20 |
| CN107255340B (en) | 2020-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107255340A (en) | Prevent the control method and control system of the overheat of compressor of transducer air conditioning | |
| CN107356444B (en) | Test method and test macro for transducer air conditioning | |
| CN102589218B (en) | Method for Monitoring Discharge Temperature Sensor of Air Conditioning Compressor Falling Off | |
| WO2020114018A1 (en) | Air conditioner and control method therefor | |
| CN109737566B (en) | Air conditioner and control method thereof | |
| CN111197836A (en) | Intelligent detection method for air conditioner sensor falling and air conditioner | |
| WO2023005323A1 (en) | Fault monitoring method for air conditioning unit | |
| CN110895017B (en) | A protection method for lack of refrigerant in an air conditioner and an air conditioner | |
| CN113701307B (en) | Refrigerant shortage protection control method for variable frequency air conditioner and air conditioner | |
| CN108758970B (en) | Abnormal state detection method of exhaust temperature sensing bulb and compressor protection method | |
| CN110701726B (en) | Detection method for air conditioner refrigerant leakage | |
| CN109028456A (en) | A kind of leakage detection method and device of refrigerant | |
| CN106403429B (en) | The liquid impact prevention control method and control device and air-conditioning system of air-conditioning system | |
| CN111412134A (en) | Detection system, detection method and compressor | |
| CN110410933A (en) | Air conditioner refrigerant leakage detection method | |
| CN110836519A (en) | Air conditioner refrigerant leakage detection method and detection system | |
| CN111023430A (en) | Compressor starting control method and device and air conditioner | |
| CN106766444B (en) | The liquid impact prevention control method and control device and air-conditioning system of air-conditioning system | |
| CN110848874B (en) | Air conditioner refrigerant leakage detection method and device | |
| CN110940045B (en) | Air conditioner refrigerant leakage detection method and air conditioner | |
| CN114183883A (en) | Detection method of four-way valve and air conditioner | |
| CN110940047B (en) | Refrigerant leakage detection method and air conditioner | |
| CN105864953A (en) | Air conditioner throttling part blockage detection method and device and air conditioner | |
| CN109297155B (en) | Compressor protection method and device and air conditioner | |
| CN110836434B (en) | Air conditioner refrigerant leakage detection method and device |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201104 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
|
| TR01 | Transfer of patent right |