CN113280476A - Air conditioning unit with self-protection function - Google Patents
Air conditioning unit with self-protection function Download PDFInfo
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- CN113280476A CN113280476A CN202110396441.8A CN202110396441A CN113280476A CN 113280476 A CN113280476 A CN 113280476A CN 202110396441 A CN202110396441 A CN 202110396441A CN 113280476 A CN113280476 A CN 113280476A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 54
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000013500 data storage Methods 0.000 claims abstract description 5
- 238000012795 verification Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 20
- 230000001012 protector Effects 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000007405 data analysis Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013524 data verification Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning unit with a self-protection function in the technical field of air conditioner control, and aims to solve the technical problems that in the prior art, because a user cannot independently judge the reason of self-protection of an air conditioner, the user experience is seriously influenced, and unnecessary loss is easily caused if the decision is not appropriate. The air conditioning unit includes: external cause detection unit: the external factor data comprises at least any one of power supply voltage, compressor temperature and compressor running time of the air conditioning unit; a storage unit: the external factor data storage unit is used for storing a preset external factor data threshold corresponding to the external factor data; a processing unit: the system comprises a self-protection device, a data acquisition module, a data processing module and a data processing module, wherein the self-protection device is used for responding to the starting of the self-protection device of the air conditioning unit, extracting external factor data within a preset time length before the self-protection device is started, and comparing the external factor data with a corresponding external factor data threshold; an alarm unit: and sending out a corresponding alarm signal corresponding to the comparison result of the external factor data and the external factor data threshold value.
Description
Technical Field
The invention relates to an air conditioning unit with a self-protection function, and belongs to the technical field of air conditioner control.
Background
The air conditioner mainly functions to condition indoor air to an optimum condition. Because the air conditioner has large power and the electric power fluctuation is severe when the air conditioner works in different states due to different adjusting functions, the hardware of the control system of the air conditioner needs to be specially designed to avoid the phenomenon that functional parts such as a compressor are burnt out and even accidents are caused due to the faults in the using process.
Therefore, many air conditioner manufacturers design a self-protection function, and the self-protection components mainly comprise an internal protector, a thermal relay, an overload protector, an anti-phase preventer and the like. The internal protector is mainly used on a single-phase air-conditioning compressor motor and is connected in series with a winding common line of the motor in the compressor to perform overcurrent protection on the compressor motor. The thermal relay is mainly used for the line overcurrent protection of the three-phase air-conditioning compressor motor, two groups of coils of the thermal relay are connected in series with two phases in a three-phase line, and when the overcurrent flows and reaches a certain time, a protection switch of the thermal relay is switched off. The overload protector is mainly used for overcurrent and overheat protection of the motor of the air conditioner compressor, and the shell of the overload protector is clung to the surface of the shell of the compressor. When the protector is used for a single-phase compressor motor, the protector is connected in series on a common line through which the full current passes; when the protector is used for a three-phase compressor motor, the protector is connected in series with two lines in a three-phase line. The anti-phase preventer is mainly used for a three-phase rotary air conditioner compressor motor, protects the phase sequence of a three-phase power supply to prevent the rotation direction of the compressor from being opposite, and has a phase-failure protection function.
The self-protection designs can effectively avoid power utilization accidents and ensure power utilization safety. In some cases, self-protection is caused by the self-failure of the air conditioner, and the self-protection can be solved only by the intervention of a manufacturer, so that the problem can be more serious when a user disposes the air conditioner by himself. However, in most cases, the reason for starting the self-protection is not that the air conditioner itself fails, and external factors such as abnormal fluctuation of power supply quality, overhigh temperature caused by continuous heat dissipation of the outdoor unit and the like may also cause the air conditioner to start the self-protection, and at this time, the self-protection can be handled by a user without intervention of a manufacturer. Because the user can not independently judge the reason of self-protection of the air conditioner, the user experience is seriously influenced, and unnecessary loss is easily caused if the decision is not correct.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an air conditioning unit with a self-protection function, so as to solve the technical problems that in the prior art, the user experience is seriously influenced and unnecessary loss is easily caused if the decision is not appropriate because the user cannot independently judge the reason of self-protection of the air conditioner.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an air conditioning unit with a self-protection function, comprising:
external cause detection unit: the external factor data comprises at least any one of power supply voltage, compressor temperature and compressor running time of the air conditioning unit;
a storage unit: the external factor data storage unit is used for storing a preset external factor data threshold corresponding to the external factor data;
a processing unit: the system comprises a self-protection device, a data acquisition module, a data processing module and a data processing module, wherein the self-protection device is used for responding to the starting of the self-protection device of the air conditioning unit, extracting external factor data within a preset time length before the self-protection device is started, and comparing the external factor data with a corresponding external factor data threshold;
an alarm unit: and sending out a corresponding alarm signal corresponding to the comparison result of the external factor data and the external factor data threshold value.
Further, the external cause detection unit comprises at least one of a power supply voltage sensor, a compressor temperature sensor and a compressor running timer;
the power supply voltage sensor is electrically connected with an external power supply of the air conditioning unit and used for acquiring power supply voltage;
the compressor temperature sensor is arranged on a compressor of the air conditioning unit and used for acquiring the temperature of the compressor;
the compressor running timer is electrically connected with a compressor of the air conditioning unit and used for acquiring the running time of the compressor.
Furthermore, the processing unit comprises a self-protection device starting timer and a comparison arithmetic unit;
the self-protection device starting timer is electrically connected with a self-protection device of the air conditioning unit and is used for acquiring the starting time of the self-protection device;
the comparison arithmetic unit is electrically connected with the external cause detection unit and the storage unit and used for extracting external cause data within a preset time length before the self-protection device is started and comparing the external cause data with a corresponding external cause data threshold value.
The communication unit is in communication connection with an external cause verification unit deployed on the cloud server, and sends the comparison result of the external cause data and the external cause data threshold to the external cause verification unit and receives external cause threshold verification data returned by the external cause verification unit;
the storage unit is also used for receiving the exogenous threshold value verification data and updating the exogenous data threshold value.
Furthermore, the communication unit is in communication connection with an operation and maintenance server of the air conditioning unit, and the communication unit responds to a comparison result that the exogenous data does not exceed the exogenous data threshold value and sends repair information to the operation and maintenance server.
Further, the alarm unit comprises a red signal lamp or/and a yellow signal lamp which is electrically connected with the processing unit;
the red signal lamp responds to a comparison result that the exogenous data does not exceed the exogenous data threshold;
the yellow signal lamp responds to the comparison result that the exogenous data exceeds the exogenous data threshold value.
Further, the self-protection device includes at least any one of an internal protector, a thermal relay, an overload protector, and an anti-phase preventer.
Compared with the prior art, the invention has the following beneficial effects: the air conditioning unit acquires external factor data which possibly causes the starting of the self-protection device through the external factor detection unit, stores an external factor data threshold value obtained through expert analysis and practice verification through the storage unit, and when the self-protection device is started, the external factor data before the starting of the protection device is compared with the external factor data threshold value through the processing unit, so that whether the air conditioner starts the self-protection device or not is judged due to external factors such as abnormal fluctuation of power supply quality, overhigh temperature caused by continuous heat dissipation of an outdoor unit and the like. If the judgment is caused by the external factors, the user is informed of self-treatment by emitting yellow signal light; if the judgment is not caused by external factors, the user is informed of the fact that the user can not process the information by himself in a red signal light emitting mode, so that the user can make a reasonable and correct decision, and unnecessary loss is avoided. The air conditioning unit is also provided with a communication unit, and can send a comparison result of the external factor data and the external factor data threshold value to the external factor verification unit deployed in the cloud server, the external factor verification unit performs big data analysis and verification, returns the optimized external factor threshold value verification data, and updates the external factor threshold value verification data into the storage unit, so that the accuracy of starting analysis of the self-protection device is continuously improved, new external factor data can be added according to research results, and the user experience level is continuously enhanced.
Drawings
Fig. 1 is a schematic view of an electrical connection structure according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides an air conditioning unit with a self-protection function, and aims to timely identify whether the external factors are caused by temporary fluctuation of power supply quality, overhigh temperature caused by continuous heat dissipation of an outdoor unit and the like when the self-protection function of an air conditioner is started, so as to provide decision basis for self-processing.
As shown in fig. 1, which is a schematic diagram of an electrical connection structure according to an embodiment of the present invention, in addition to a conventional electrical circuit of an air conditioning unit, the electrical connection structure further includes:
external cause detection unit: the external factor data acquisition unit is used for acquiring external factor data of the air conditioning unit, wherein the external factor data comprises the power supply voltage, the temperature of a compressor and the running time of the compressor of the air conditioning unit;
a storage unit: the external factor data storage unit is used for storing a preset external factor data threshold corresponding to the external factor data;
a processing unit: the system comprises a self-protection device, a data acquisition module, a data processing module and a data processing module, wherein the self-protection device is used for responding to the starting of the self-protection device of the air conditioning unit, extracting external factor data within a preset time length before the self-protection device is started, and comparing the external factor data with a corresponding external factor data threshold;
an alarm unit: corresponding to the comparison result of the external factor data and the external factor data threshold value, sending out a corresponding alarm signal;
a communication unit: the system is in communication connection with an operation and maintenance server of the air conditioning unit and an external cause verification unit deployed on the cloud server.
More specifically, the external cause detecting unit includes:
a supply voltage sensor: the power supply is electrically connected with an external power supply of the air conditioning unit and used for acquiring power supply voltage;
compressor temperature sensor: the temperature control device is arranged on a compressor of the air conditioning unit and used for acquiring the temperature of the compressor;
compressor running timer: and the air conditioner unit is electrically connected with a compressor of the air conditioning unit and used for acquiring the running time of the compressor.
The aforementioned processing unit includes:
the self-protection device starts a timer: the self-protection device is electrically connected with the self-protection device of the air conditioning unit and used for acquiring the starting time of the self-protection device;
a comparison operator; and the external cause data is electrically connected with the external cause detection unit and the storage unit and used for extracting external cause data within a preset time length before the self-protection device is started and comparing the external cause data with a corresponding external cause data threshold value.
The alarm unit comprises a red signal lamp and a yellow signal lamp which are electrically connected with the processing unit.
The self-protection device includes at least any one of an internal protector, a thermal relay, an overload protector, and an anti-phase preventer.
The working principle of the embodiment of the air conditioning unit is as follows:
when the air conditioning unit is powered on and operates, the power supply voltage sensor, the compressor temperature sensor and the compressor operation timer respectively acquire the power supply voltage, the compressor temperature and the compressor operation time of the air conditioning unit and record the power supply voltage, the compressor temperature and the compressor operation time to the storage unit.
When the self-protection device is started, firstly, starting a timer by the self-protection device to acquire the starting time of the self-protection device; and then, the comparison arithmetic unit respectively extracts external factor data such as power supply voltage, compressor temperature, compressor running time and the like within a preset time length before the self-protection device of the air conditioning unit is started from the storage unit, takes effective values of the external factor data, and compares the effective values with external factor data thresholds such as a power supply voltage threshold, a compressor temperature threshold, a compressor running time threshold and the like. The alignment analysis process is as follows: (1) if the power supply voltage obviously exceeds the power supply voltage threshold value, the self-protection device is started probably due to the abnormal fluctuation of the power supply quality, otherwise, the self-protection device is probably failed by the air conditioning unit. (2) If the compressor temperature is significantly above the compressor temperature threshold and the compressor run time is significantly above the compressor run time threshold, this indicates that the self-protection device is likely to be activated due to excessive temperature caused by continuous heat dissipation from the compressor, or else may be due to a failure of the air conditioning unit itself. (3) If the compressor temperature is significantly above the compressor temperature threshold, but the compressor operating time does not significantly exceed the compressor operating time threshold, this indicates that the self-protection device has started with a high probability due to a failure of the air conditioning unit itself. The self-protection device is started by external factors such as abnormal fluctuation of power supply quality, overhigh temperature caused by continuous heat dissipation of the compressor and the like after comparison judgment, and a user can handle the self-protection device by himself; if the self-protection device is started due to the fact that the air conditioning unit breaks down according to the comparison judgment, the user is not suitable for self-handling, and the user should be in contact with an operation and maintenance service end dispatcher of the air conditioning unit to conduct home maintenance.
The communication unit and the alarm unit are electrically connected with the comparison arithmetic unit, and the communication unit is also electrically connected with the storage unit. The comparison result of the exogenous data and the exogenous data threshold is sent to an exogenous verification unit deployed in a cloud server by a communication unit, the exogenous verification unit carries out big data storage and analysis on the comparison result, further verification is carried out by combining modes such as post investigation, expert analysis and the like, the existing exogenous data threshold is improved by combining factors such as climate temperature, regional environment, power supply quality and the like, and then the comparison result is transmitted to the communication unit of the air conditioning unit, the communication unit transmits the received exogenous threshold verification data to a storage unit, the storage unit receives the exogenous threshold verification data and updates the existing exogenous data threshold, and therefore reasonability and effectiveness of comparison and analysis are improved.
When the comparison arithmetic unit judges that the self-protection device is started due to the external factors, a yellow signal lamp in the alarm unit responds to the comparison result that the external factor data exceeds the external factor data threshold value and emits yellow light to inform a user that the self-protection device can process the external factor data. When the comparison arithmetic unit judges that the self-protection device is not started due to the external factors, a red signal lamp in the alarm unit responds to the comparison result that the external factor data does not exceed the external factor data threshold value, and sends out red light to inform a user that the user can not process the self-protection device by himself or herself and the operation and maintenance service end needs to send people to get on the door for maintenance. At this time, the communication unit responds to the comparison result that the external factor data does not exceed the external factor data threshold value, and sends repair information to the operation and maintenance service terminal.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An air conditioning unit with self-protection function, characterized by includes:
external cause detection unit: the external factor data comprises at least any one of power supply voltage, compressor temperature and compressor running time of the air conditioning unit;
a storage unit: the external factor data storage unit is used for storing a preset external factor data threshold corresponding to the external factor data;
a processing unit: the system comprises a self-protection device, a data acquisition module, a data processing module and a data processing module, wherein the self-protection device is used for responding to the starting of the self-protection device of the air conditioning unit, extracting external factor data within a preset time length before the self-protection device is started, and comparing the external factor data with a corresponding external factor data threshold;
an alarm unit: and sending out a corresponding alarm signal corresponding to the comparison result of the external factor data and the external factor data threshold value.
2. The air conditioning unit with self-protection function as claimed in claim 1, wherein the external cause detection unit includes at least one of a power supply voltage sensor, a compressor temperature sensor, and a compressor operation timer;
the power supply voltage sensor is electrically connected with an external power supply of the air conditioning unit and used for acquiring power supply voltage;
the compressor temperature sensor is arranged on a compressor of the air conditioning unit and used for acquiring the temperature of the compressor;
the compressor running timer is electrically connected with a compressor of the air conditioning unit and used for acquiring the running time of the compressor.
3. The air conditioning unit with self-protection function as claimed in claim 1, wherein the processing unit comprises a self-protection device start timer and a comparison calculator;
the self-protection device starting timer is electrically connected with a self-protection device of the air conditioning unit and is used for acquiring the starting time of the self-protection device;
the comparison arithmetic unit is electrically connected with the external cause detection unit and the storage unit and used for extracting external cause data within a preset time length before the self-protection device is started and comparing the external cause data with a corresponding external cause data threshold value.
4. The air conditioning unit with the self-protection function of claim 1, further comprising a communication unit electrically connected to the processing unit, wherein the communication unit is communicatively connected to an external cause verification unit deployed on the cloud server, the communication unit sends the comparison result between the external cause data and the external cause data threshold to the external cause verification unit, and receives the external cause threshold verification data returned by the external cause verification unit;
the storage unit is also used for receiving the exogenous threshold value verification data and updating the exogenous data threshold value.
5. The air conditioning unit with the self-protection function as claimed in claim 4, wherein the communication unit is further in communication connection with an operation and maintenance server of the air conditioning unit, and the communication unit sends the repair information to the operation and maintenance server in response to the comparison result that the external factor data does not exceed the external factor data threshold.
6. The air conditioning unit with the self-protection function as claimed in claim 1, wherein the alarm unit comprises a red signal lamp or/and a yellow signal lamp electrically connected with the processing unit;
the red signal lamp responds to a comparison result that the exogenous data does not exceed the exogenous data threshold;
the yellow signal lamp responds to the comparison result that the exogenous data exceeds the exogenous data threshold value.
7. The air conditioning unit with self-protection function as claimed in claim 1, wherein the self-protection device includes at least one of an internal protector, a thermal relay, an overload protector, and an anti-phase protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110396441.8A CN113280476A (en) | 2021-04-13 | 2021-04-13 | Air conditioning unit with self-protection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110396441.8A CN113280476A (en) | 2021-04-13 | 2021-04-13 | Air conditioning unit with self-protection function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060032245A1 (en) * | 2004-08-11 | 2006-02-16 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
| CN101178234A (en) * | 2006-11-08 | 2008-05-14 | 乐金电子(天津)电器有限公司 | Air-conditioning and working method thereof |
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner and detection method and device thereof |
| CN106642604A (en) * | 2016-12-08 | 2017-05-10 | 海信（山东）空调有限公司 | Air conditioner fault detection system and method |
| CN110645672A (en) * | 2019-10-14 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for variable frequency air conditioner |
-
2021
- 2021-04-13 CN CN202110396441.8A patent/CN113280476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060032245A1 (en) * | 2004-08-11 | 2006-02-16 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
| CN101178234A (en) * | 2006-11-08 | 2008-05-14 | 乐金电子(天津)电器有限公司 | Air-conditioning and working method thereof |
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner and detection method and device thereof |
| CN106642604A (en) * | 2016-12-08 | 2017-05-10 | 海信（山东）空调有限公司 | Air conditioner fault detection system and method |
| CN110645672A (en) * | 2019-10-14 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for variable frequency air conditioner |
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Application publication date: 20210820 |