CN111121227B - Fault detection method and device under low-voltage pressure switch protection mode and air conditioner - Google Patents
Fault detection method and device under low-voltage pressure switch protection mode and air conditioner Download PDFInfo
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- CN111121227B CN111121227B CN201911402568.5A CN201911402568A CN111121227B CN 111121227 B CN111121227 B CN 111121227B CN 201911402568 A CN201911402568 A CN 201911402568A CN 111121227 B CN111121227 B CN 111121227B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The invention provides a fault detection method and a fault detection device under a low-voltage pressure switch protection mode and an air conditioner, wherein the detection method comprises the following steps: detecting that the air conditioner is in a low-pressure switch protection mode in the shutdown state of the air conditioner; detecting outdoor ambient temperature TOuter coverWhen the outdoor ambient temperature TOuter coverWhen the first preset condition is met, continuing to operate the next step; starting the air conditioner and detecting the exhaust temperature T of the air conditioner in real timeRow board(ii) a According to exhaust temperature TRow boardAnd judging the fault type and displaying a corresponding fault code. The air conditioner is prevented from stopping running only due to physical damage of the low-pressure switch, user experience is improved, and sufficient time is reserved for after-sale maintenance.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for detecting faults in a low-voltage pressure switch protection mode and an air conditioner.
Background
On current air conditioner, can use pressure switch to control the operation of air conditioner usually, pressure switch divide into high-pressure switch and low pressure switch, and when the low pressure of air conditioner was crossed lowly, the air conditioner can start low pressure protection, and when low pressure protection appeared, thereby the maintenance personal need detect the system again after the scene and confirm the reason that low pressure protection appeared, and low pressure protection generally has two reasons, and first the physics of low pressure switch damages, and second the air conditioner takes place system failure.
The air conditioner can lock after low-voltage protection appears among the prior art, and the user can't use the air conditioner, if restart after the air conditioner outage resumes to use, meets the adverse circumstances and will arouse that the air conditioner overuse leads to the compressor to damage, causes great loss. In fact, whether the air conditioner can continue to operate is related to the reason of low-voltage protection, if the low-voltage protection is caused only by physical damage of a low-voltage pressure switch, the air conditioner can continue to operate within the time of waiting for maintenance personnel to overhaul; if low-voltage protection is caused by system failure, the air conditioner can not be recovered to operate and can be continuously used after being maintained by maintenance personnel, so that the damage to the compressor is avoided.
Disclosure of Invention
The invention solves the technical problem of how to avoid the air conditioner from stopping running only due to the physical damage of a low-pressure switch.
In order to solve the technical problem, the invention provides a method for detecting a fault in a low-voltage pressure switch protection mode, which comprises the following steps: s100, detecting that the air conditioner is in a low-pressure switch protection mode in a shutdown state of the air conditioner; step S200, detecting outdoor environment temperature TOuter coverWhen the outdoor ambient temperature TOuter coverWhen the first preset condition is met, the step S300 is operated; step S300, starting the air conditioner, and detecting the exhaust temperature T of the air conditioner in real timeRow board(ii) a Step S400, according to the exhaust temperature TRow boardAnd judging the fault type and displaying a corresponding fault code.
The air conditioner is prevented from stopping running only due to physical damage of the low-pressure switch, user experience is improved, and sufficient time is reserved for after-sale maintenance.
Further, the step S200 further includes: when the outdoor ambient temperature TOuter coverAnd when the first preset condition is not met, the air conditioner is not allowed to be started, the fault alarm is carried out, and the fault code A is displayed.
Further, the first preset condition is that: in cooling mode TOuter coverNot less than the first preset temperature T1In heating mode TOuter coverNot less than the second preset temperature T2。
Further, the first preset temperature T1Not less than 30 ℃ and not more than 10 ℃ and not more than second preset temperature T2≤32℃。
Under the prerequisite that pressure switch broke down, let the user use the air conditioner under better operating mode, avoided because take trouble operation under the abominable operating mode to lead to bigger loss, for example compressor damage scheduling problem.
Further, the step S400 further includes: when exhaust temperature TRow boardWhen a second preset condition is met, allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B; when exhaust temperature TRow boardAnd when the third preset condition is met, the air conditioner stops to alarm, and a fault code C is displayed.
Different fault codes represent different fault types, and by means of the fault codes, after-sales maintenance personnel can reasonably arrange maintenance time, perform urgent advanced treatment and perform non-urgent later treatment.
Further, the second preset condition is that: exhaust temperature TRow board< third preset temperature T3Or a third predetermined temperature T3Exhaust temperature T is less than or equal toRow boardNot more than fourth preset temperature T4And the duration is less than a first preset time t; the third preset condition is as follows: exhaust temperature TRow boardNot less than the fourth preset temperature T4Or exhaust gas temperature TRow boardNot less than third preset temperature T3And the duration is greater than or equal to the first preset time t.
Further, the step S400 further includes: exhaust temperature TRow board< third preset temperature T3Allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B; third predetermined temperature T3Exhaust temperature T is less than or equal toRow boardNot more than fourth preset temperature T4At the moment, the duration time of the state is further judged, if the duration time is less than the first preset time t, the air conditioner is allowed to continue to operate, a fault alarm is given,displaying a fault code B; if the duration time is more than or equal to the first preset time t, stopping the air conditioner for alarming, and displaying a fault code C; exhaust temperature TRow boardNot less than the fourth preset temperature T4And the air conditioner stops to alarm and displays a fault code C.
Further, the third preset temperature T is not less than 95 DEG C3Less than or equal to 110 ℃ and less than or equal to 105 ℃ and less than or equal to fourth preset temperature T4Not less than 115 ℃ and not more than 1min and not more than 20 min.
Further, a third preset temperature T3Is 100 ℃, a fourth preset temperature T4Is 110 ℃ and the first preset time t is 5 min.
The exhaust temperature of the compressor is in a normal range, which shows that the low-pressure protection is caused by the damage of a physical device of a low-pressure switch, and the system of the air conditioner is normal and can continue to operate; the exhaust temperature of the compressor is higher, which indicates that the air conditioner has system failure to cause low-voltage protection, the air conditioner is stopped and can not be recovered to operate, and the air conditioner can be continuously used after being maintained by maintenance personnel.
The invention also provides a device for detecting faults in a low-voltage pressure switch protection mode, which comprises: a detection unit for detecting an outdoor ambient temperature and an exhaust temperature; the alarm unit is used for carrying out fault alarm; a display unit for displaying a fault code; and the control unit is used for controlling the air conditioner to start and stop, controlling the alarm unit to alarm and controlling the display unit to display different fault codes according to the outdoor environment temperature and the exhaust temperature.
The invention also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the method for detecting the fault in the low-pressure switch protection mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for detecting a fault in a low-pressure switch protection mode according to embodiment 1;
fig. 2 is a schematic flowchart of a method for detecting a fault in the protection mode of the low-pressure switch in embodiment 2.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The low pressure switch sets up on the breathing pipe way of the compressor of off-premises station, low pressure switch is used for detecting the suction pressure of compressor, when suction pressure is low excessively, low pressure switch is to control panel transmission signal, make the compressor stall, thereby avoid the compressor can in time protect the air conditioner when the refrigerant reveals, low pressure crosses the refrigeration heating effect variation that leads to the air conditioner excessively and low pressure crosses and leads to the compressor wearing and tearing to appear excessively, but the low pressure protection shut down will get rid of only because low pressure switch's physical damage and lead to the condition of air conditioner stall.
The method for detecting the fault in the protection mode of the low-voltage pressure switch provided by the embodiment is shown in the attached drawing 1.
A method for detecting faults in a low-voltage pressure switch protection mode comprises the following steps:
and S100, detecting that the air conditioner is in a low-pressure switch protection mode in the shutdown state of the air conditioner.
The low-voltage protection is detected in the shutdown state of the air conditioner, which indicates that the related physical devices of the low-voltage pressure switch are damaged, for example, the low-voltage pressure switch is damaged, a connecting line between the low-voltage pressure switch and a controller is damaged, and a controller port of the low-voltage pressure switch is damaged, but at this time, whether the air conditioner has a system fault cannot be determined, for example, the low-voltage protection is caused by low voltage due to too little system refrigerant or complete refrigerant leakage.
Step S200, detecting outdoor environment temperature TOuter coverWhen the outdoor ambient temperature TOuter coverWhen the first preset condition is met, the step S300 is operated; when the outdoor ambient temperature TOuter coverAnd when the first preset condition is not met, the air conditioner is not allowed to be started, fault alarm is carried out, a user is reminded to report and repair, and the fault code A is displayed.
The first preset condition is as follows: in cooling mode TOuter coverNot less than the first preset temperature T1In heating mode TOuter coverNot less than the second preset temperature T2；
Wherein the first preset temperature T1Not less than 30 ℃ and not more than 10 ℃ and not more than second preset temperature T2≤32℃；TOuter coverThe temperature is less than or equal to 32 ℃, namely 32 ℃ is the upper limit temperature of the operation of the air-conditioning heating mode.
Under the prerequisite that pressure switch broke down, let the user use the air conditioner under better operating mode, avoided because take trouble operation under the abominable operating mode to lead to bigger loss, for example compressor damage scheduling problem.
Step S300, starting the air conditioner, and detecting the exhaust temperature T of the air conditioner in real timeAnd (4) row.
Step S400, according to the exhaust temperature TRow boardAnd judging the fault type and displaying a corresponding fault code.
Different fault codes represent different fault types, and by means of the fault codes, after-sales maintenance personnel can reasonably arrange maintenance time, perform urgent advanced treatment and perform non-urgent later treatment.
Step S410, when the exhaust temperature T is lowerRow boardAnd when the second preset condition is met, allowing the air conditioner to continue to operate, giving a fault alarm, reminding a user of repairing, and displaying a fault code B.
The second preset condition is as follows: exhaust temperature TRow board< third preset temperature T3Or a third predetermined temperature T3Exhaust temperature T is less than or equal toRow boardNot more than fourth preset temperature T4And the duration is less than a first preset time t;
wherein the third preset temperature T is not less than 95 DEG C3At most 110 ℃, preferably 100 ℃;
a fourth preset temperature T of not less than 105 DEG C4At most 115 ℃, preferably at 110 ℃;
in the same detection process, the third preset temperature T3< fourth preset temperature T4；
The first preset time t is less than or equal to 1min and less than or equal to 20min, preferably 5 min;
the exhaust temperature of the compressor is in a normal range, which shows that the low-pressure protection is caused by the damage of a physical device of a low-pressure switch, and the system of the air conditioner is normal and can continue to operate.
Step S420, when the exhaust temperature T is reachedRow boardAnd when the third preset condition is met, the air conditioner stops to give an alarm, reminds a user to report the repair and displays the fault code C.
The third preset condition is as follows: exhaust temperature TRow boardNot less than the fourth preset temperature T4Or exhaust gas temperature TRow boardNot less than third preset temperature T3And the duration is more than or equal to a first preset time t;
the exhaust temperature of the compressor is higher, which indicates that the air conditioner has system failure to cause low-voltage protection, the air conditioner is stopped and can not be recovered to operate, and the air conditioner can be continuously used after being maintained by maintenance personnel.
By the fault detection method in the low-pressure switch protection mode in the embodiment, the air conditioner is prevented from stopping running only due to physical damage of the low-pressure switch, user experience is improved, and sufficient time is reserved for after-sale maintenance.
The air conditioner off includes, but is not limited to, the air conditioner stopping cooling and/or the air conditioner stopping heating, and the air conditioner off means that the functional unit of the air conditioner stops working while the control unit continues to operate.
Example 2
The method for detecting the fault in the protection mode of the low-voltage pressure switch provided by the embodiment is shown in fig. 2.
Specifically, the method for detecting a fault in the protection mode of the low-pressure switch provided by this embodiment basically adopts the same steps as those in embodiment 1.
The difference lies in that: the specific determination logic of step S400 is different.
Specifically, step S410', exhaust temperature TRow board< third preset temperature T3Allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B;
step S420' and a third preset temperature T3Exhaust temperature T is less than or equal toRow boardNot more than fourth preset temperature T4At the moment, further judging the duration of the state, if the duration is less than a first preset time t, allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B; if the duration time is more than or equal to the first preset time t, stopping the air conditioner for alarming, and displaying a fault code C;
step S430' exhaust temperature TRow boardNot less than the fourth preset temperature T4And the air conditioner stops to alarm and displays a fault code C.
Example 3
A device for detecting a fault in a protection mode of a low pressure switch, comprising:
a detection unit for detecting an outdoor ambient temperature and an exhaust temperature;
the alarm unit is used for carrying out fault alarm;
a display unit for displaying a fault code;
and the control unit is used for controlling the air conditioner to start and stop, controlling the alarm unit to alarm and controlling the display unit to display different fault codes according to the outdoor environment temperature and the exhaust temperature.
Example 4
A computer-readable storage medium, which stores a computer program, which, when read and executed by a processor, implements the method for detecting a fault in a low-pressure switch protection mode as described above.
All or part of the processes in the methods of the above embodiments are implemented by instructing a control device through a computer program, where the program may be stored in a readable storage medium, and the program may include the processes of the above embodiments when executed, where the readable storage medium may be a memory, a magnetic disk, an optical disk, and the like.
Example 5
An air conditioner comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs to realize the fault detection method in the low-pressure switch protection mode.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A method for detecting faults in a low-voltage pressure switch protection mode is characterized by comprising the following steps:
s100, detecting that the air conditioner is in a low-pressure switch protection mode in a shutdown state of the air conditioner;
step S200, detecting outdoor environment temperature TOuter coverWhen the outdoor ambient temperature TOuter coverWhen the first preset condition is met, the step S300 is operated; when the outdoor ambient temperature TOuter coverWhen the first preset condition is not met, the air conditioner is not allowed to be started, a fault alarm is performed, and a fault code A is displayed; the first preset condition is as follows: in cooling mode TOuter coverNot less than the first preset temperature T1In heating mode TOuter coverNot less than the second preset temperature T2；
Step S300, starting the air conditioner, and detecting the exhaust temperature T of the air conditioner in real timeRow board；
Step S400, according to the exhaust temperature TRow boardJudging the fault type and displaying the corresponding fault code;
the step S400 includes:
exhaust temperature TRow board< third preset temperature T3Allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B;
third predetermined temperature T3Exhaust temperature T is less than or equal toRow boardNot more than fourth preset temperature T4At the moment, further judging the duration of the state, if the duration is less than a first preset time t, allowing the air conditioner to continue to operate, giving a fault alarm, and displaying a fault code B; if the duration time is more than or equal to the first preset time t, stopping the air conditioner for alarming, and displaying a fault code C;
exhaust temperature TRow boardNot less than the fourth preset temperature T4And the air conditioner stops to alarm and displays a fault code C.
2. A method for detecting a fault in a protection mode of a low pressure switch according to claim 1, characterized in thatIn that the first preset temperature T1Not less than 30 ℃ and not more than 10 ℃ and not more than second preset temperature T2≤32℃。
3. The method as claimed in claim 1, wherein the third predetermined temperature T is 95 ℃ ≤ and3less than or equal to 110 ℃ and less than or equal to 105 ℃ and less than or equal to fourth preset temperature T4Not less than 115 ℃ and not more than 1min and not more than 20 min.
4. Method for detecting a fault in the protection mode of a low-pressure switch according to claim 3, characterized in that the third preset temperature T3Is 100 ℃, a fourth preset temperature T4Is 110 ℃ and the first preset time t is 5 min.
5. A device for detecting a fault in a low pressure switch protection mode, comprising:
a detection unit for detecting an outdoor ambient temperature and an exhaust temperature;
the alarm unit is used for carrying out fault alarm;
a display unit for displaying a fault code;
and the control unit is used for controlling the air conditioner to start and stop, controlling the alarm unit to alarm and controlling the display unit to display different fault codes according to the outdoor environment temperature and the exhaust temperature.
6. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the method for detecting a fault in a protection mode of a low pressure switch according to any one of claims 1 to 4.
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| CN111623484A (en) * | 2020-05-13 | 2020-09-04 | 青岛海尔空调电子有限公司 | Air conditioner, control method thereof and computer readable storage medium |
| CN113465114B (en) * | 2021-05-21 | 2022-12-06 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing low-voltage error protection and air conditioner |
| CN113847703B (en) * | 2021-10-29 | 2023-08-15 | 海信（广东）空调有限公司 | Refrigerant leakage detection method of dehumidifier |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050034084A (en) * | 2003-10-08 | 2005-04-14 | 위니아만도 주식회사 | Method for controlling exhausted temperature by compressor of multi type air-conditioner |
| CN102563819A (en) * | 2011-12-05 | 2012-07-11 | Tcl空调器(中山)有限公司 | Air conditioner and troubleshooting method thereof |
| CN102679495A (en) * | 2012-05-11 | 2012-09-19 | 青岛海尔空调电子有限公司 | Compensation starting method of air conditioner |
| CN106352487A (en) * | 2016-09-23 | 2017-01-25 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN107314499A (en) * | 2017-05-27 | 2017-11-03 | 宁波奥克斯电气股份有限公司 | A kind of air-conditioning heating low tension switch protects control method |
| CN109282425A (en) * | 2018-09-29 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of self-sensing method of air-conditioning system and its pressure anomaly |
| CN109539474A (en) * | 2018-10-18 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning control method and device |
| CN109812920A (en) * | 2019-02-25 | 2019-05-28 | 奥克斯空调股份有限公司 | A kind of control method, device and the multi-line system of the start and stop of air conditioner multi-compressor |
| CN109882989A (en) * | 2019-02-18 | 2019-06-14 | 广东美的制冷设备有限公司 | Air conditioner and its control method |
| CN110388719A (en) * | 2019-07-24 | 2019-10-29 | 重庆美的通用制冷设备有限公司 | Central air-conditioning unit and its control method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9335063B2 (en) * | 2014-01-23 | 2016-05-10 | Lennox Industries Inc. | Detection of damper motor mechanically disconnected from damper assembly |
| US10663186B2 (en) * | 2016-05-31 | 2020-05-26 | Robert J. Mowris | Apparatus and methods to determine economizer faults |
| CN106196427A (en) * | 2016-06-29 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of control method preventing from reporting the protection of scarce coolant by mistake |
| JP2019173980A (en) * | 2018-03-26 | 2019-10-10 | ダイキン工業株式会社 | Air conditioning indoor unit, and air conditioning device including the same |
| US11022334B2 (en) * | 2018-04-25 | 2021-06-01 | Johnson Controls Technology Company | Operational envelope control of an HVAC compressor |
| CN109357356A (en) * | 2018-09-11 | 2019-02-19 | 珠海格力电器股份有限公司 | Fault handling method and device, household appliance |
-
2019
- 2019-12-30 CN CN201911402568.5A patent/CN111121227B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050034084A (en) * | 2003-10-08 | 2005-04-14 | 위니아만도 주식회사 | Method for controlling exhausted temperature by compressor of multi type air-conditioner |
| CN102563819A (en) * | 2011-12-05 | 2012-07-11 | Tcl空调器(中山)有限公司 | Air conditioner and troubleshooting method thereof |
| CN102679495A (en) * | 2012-05-11 | 2012-09-19 | 青岛海尔空调电子有限公司 | Compensation starting method of air conditioner |
| CN106352487A (en) * | 2016-09-23 | 2017-01-25 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN107314499A (en) * | 2017-05-27 | 2017-11-03 | 宁波奥克斯电气股份有限公司 | A kind of air-conditioning heating low tension switch protects control method |
| CN109282425A (en) * | 2018-09-29 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of self-sensing method of air-conditioning system and its pressure anomaly |
| CN109539474A (en) * | 2018-10-18 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning control method and device |
| CN109882989A (en) * | 2019-02-18 | 2019-06-14 | 广东美的制冷设备有限公司 | Air conditioner and its control method |
| CN109812920A (en) * | 2019-02-25 | 2019-05-28 | 奥克斯空调股份有限公司 | A kind of control method, device and the multi-line system of the start and stop of air conditioner multi-compressor |
| CN110388719A (en) * | 2019-07-24 | 2019-10-29 | 重庆美的通用制冷设备有限公司 | Central air-conditioning unit and its control method and device |
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