CN110470038A - A kind of judgement and guard method that unit air-conditioner booting is abnormal - Google Patents
A kind of judgement and guard method that unit air-conditioner booting is abnormal Download PDFInfo
- Publication number
- CN110470038A CN110470038A CN201910771077.1A CN201910771077A CN110470038A CN 110470038 A CN110470038 A CN 110470038A CN 201910771077 A CN201910771077 A CN 201910771077A CN 110470038 A CN110470038 A CN 110470038A
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- Prior art keywords
- air
- judgement
- temp probe
- temperature
- conditioner
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- 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.)
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Classifications
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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
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to judgements and guard method that a kind of booting of unit air-conditioner is abnormal, including controller, the controller to be separately connected temp probe I and temp probe II；Temp probe I is set at the indoor return air mouth of air conditioner；Temp probe II is set in the middle part of the indoor heat exchanger of air conditioner；The controller being capable of timing.The runing time that the present invention passes through detection starting of air conditioner duration compression machine, and indoor environment temperature and indoor heat exchanger middle portion temperature, and exclude the fluctuation of temperature, judge whether abnormal when air-conditioning booting, the accuracy of judgement is set to be increased dramatically, moreover, can also save required detection device in tradition judgement, it reduces costs, improves practicability.
Description
Technical field
The present invention relates to a kind of air conditioning control method, especially a kind of control method of unit air-conditioner, specifically
It is a kind of judgement and guard method that unit air-conditioner booting is abnormal.
Background technique
Unit air-conditioner value of goods is smaller, and installation is simple, and the requirement threshold to installation personnel is lower.Installation personnel is not known about
Unit, operation is lack of standardization etc. is easy to cause system cold draining matchmaker, into impurity, and the feelings such as wiring error or leakage valve opening door also occur often
Condition.System cold draining matchmaker or to not only result in air-conditioning system refrigerating/heating effect into impurity poor, also results in inside compressor casing
Temperature is excessively high, lubricating oil carbonization, and then situations such as lead to compressor abrasion, card cylinder, collaborate, and shut-off valve is opened in wiring error or leakage
Situations such as may make to burn in the compressor short time.Compressor burns the increase for not only causing maintenance cost, can also make brand
Image brings bad usage experience to user by the influence of very severe.
There are many kinds of existing air-conditioning system guard methods, such as in the protection of overload protection, excessive discharge temperature, compressor
Protection etc. is set, but when system refrigerant occur and blocking or leak valve opening door completely lower than 10% or less, system, overload protection
Or the measures such as delivery temperature protection are all difficult to play a role, so that the built-in protection of compressor is triggered, and the built-in protection time of compressor
Number will excessively reduce the compressor service life.Therefore, it is badly in need of improving.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of abnormal judgement of unit air-conditioner booting and
Guard method can be referred under the premise of not increasing other devices by detection indoor environment temperature and indoor heat exchanger temperature etc.
Mark is realized to the effective protection of air-conditioning system, advantageously reduces maintenance cost, provide better usage experience.
The technical scheme is that
A kind of judgement and guard method that unit air-conditioner booting is abnormal, including controller, the controller are separately connected temperature
Pop one's head in I and temp probe II；Temp probe I is set at the indoor return air mouth of air conditioner；Temp probe II is set to air conditioner
Indoor heat exchanger in the middle part of；The controller being capable of timing；The judgement guard method the following steps are included:
1) air conditioner starts, compressor starts operation, controller start recording compressor operating time t；
2) indoor environment temperature T1 is detected by temp probe I；Indoor heat exchanger mid-game temperature T2 is detected by temp probe II；
It calculates: △ T=T1-T2；
If 3) t1 < t < t2, turn in next step；If t >=t2 goes to step 9；Wherein: t1, t2 are preset time, and t1 < t2；
If 4) △ T < m1, turn in next step；Otherwise, return step 2)；Wherein: m1 is temperature preset value；
5) △ TD=(△ T) max-(△ T) min in any preset period of time t3 is calculated；If △ TD < m2, turn in next step；It is no
Then, return step 2)；Wherein: m2 is temperature preset value；
6) protection act is executed, t is reset；Turn in next step；
7) frequency n of the execution protection act in preset time t 4 is calculated；If 1) n < N, goes to step；Otherwise, turn next
Step；Wherein: N is preset times；
8) air-conditioning is shut down, and issues fault alarm, is waited artificial reparation, is exited judgement；
9) judgement, air-conditioner continuous operation are exited.
Further, the protection act in the step 6) are as follows: close compressor and outdoor fan, indoor fan after
It is continuous to be run according to original state, show fault code.
Beneficial effects of the present invention:
The present invention has rational design, and manipulation is convenient, by detecting in compressor operating time, and indoor circumstance temperature and indoor heat exchanger
The indexs such as portion's temperature gap and its variation judge whether air-conditioning booting is abnormal, not only eliminates other additional detection means, reduces
Cost, moreover, can also simplified control program, improve the stability of system.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
A kind of judgement and guard method that unit air-conditioner booting is abnormal, including controller, the controller are separately connected
Temp probe I and temp probe II；Temp probe I is set at the indoor return air mouth of air conditioner；Temp probe II is set to sky
In the middle part of the indoor heat exchanger for adjusting device；The controller being capable of timing；The judgement guard method the following steps are included:
1) air conditioner starts, compressor starts operation；Controller start recording compressor operating time t；Preferably, in order to improve
The accuracy of judgement can also increase judgement air conditioning operating mode in the step, only under refrigeration or dehumidification mode, just starting this
Judgement；
2) indoor environment temperature T1 is detected by temp probe I；Indoor heat exchanger mid-game temperature T2 is detected by temp probe II；
It calculates: △ T=T1-T2；
If 3) t1 < t < t2, turn in next step；If t >=t2 goes to step 9；Wherein: t1, t2 are preset time, and t1 < t2；
If 4) △ T < m1, turn in next step；Otherwise, return step 2)；Wherein: m1 is temperature preset value；Judgment basis herein
Are as follows: if system operates normally, and refrigerant flows through indoor heat exchanger evaporation endothermic, and heat exchanger middle portion temperature can reduce quickly, indoor
The difference of return air temperature T1 and middle portion temperature T2 is greater than preset value m1 after powering；If outdoor pusher side shut-off valve is not turned on,
Without refrigerant in the no normally starting of compressor or system, indoor does not have refrigerant to flow through after being switched on, then T2 will not change,
It is equal with T1；
5) △ TD=(△ T) max-(△ T) min in any preset period of time t3 is calculated；If △ TD < m2, turn in next step；It is no
Then, return step 2)；Wherein: m2 is temperature preset value；Foundation herein are as follows: in order to avoid T1 and T2 fluctuation and cause to miss
Sentence, the maxima and minima of difference both in the t2 period any after booting compared, if the maximum of the two difference with most
Small value meets preset condition, then can exclude the fluctuation of room temperature, illustrates the temperature within the t2 period in the middle part of indoor heat exchanger
Do not change；And according to air-conditioning system operation characteristic, when it was switched in a period of time, the temperature in the middle part of the indoor heat exchanger should
There is very great fluctuation process；
6) protection act is executed, t is reset；Turn in next step；The protection act are as follows: close compressor and outdoor fan, indoor wind
Machine continuation is run according to original state, shows fault code；
7) frequency n of the execution protection act in preset time t 4 is calculated；If 1) n < N, goes to step；Otherwise, turn next
Step；Wherein: N is preset times；
8) air-conditioning is shut down, and issues fault alarm, is waited artificial reparation, is exited judgement；
9) judgement, air-conditioner continuous operation are exited.
Relevant parameter explanation:
Preset time t 1 is set as a certain value in 1min ~ 3min；
Preset time t 2 is set as a certain value in 1min ~ 5min；
Preset time t 3 is set as a certain value in 60s ~ 120s；
Preset time t 4 is set as a certain value in 3min ~ 5min；
Preset value m1 is set as a certain value in 0 ~ 10 DEG C；
Preset value m2 is set as a certain value in 0 ~ 10 DEG C；
Preset value N is set as a certain value in 2 ~ 5.
The runing time and indoor environment temperature and indoor heat exchange that the present invention passes through detection starting of air conditioner duration compression machine
Device middle portion temperature, and the fluctuation of temperature is excluded, judge whether abnormal when air-conditioning booting.The accuracy of judgement can not only obtained greatly
Width is promoted, moreover, can also save required detection device in tradition judgement, is reduced costs, is improved practicability.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (2)
1. a kind of judgement and guard method that unit air-conditioner booting is abnormal, including controller, the controller are separately connected temperature
Degree probe I and temp probe II；Temp probe I is set at the indoor return air mouth of air conditioner；Temp probe II is set to air-conditioning
In the middle part of the indoor heat exchanger of device；The controller being capable of timing；It is characterized in that: the judgement guard method the following steps are included:
1) air conditioner starts, compressor starts operation, controller start recording compressor operating time t；
2) indoor environment temperature T1 is detected by temp probe I；Indoor heat exchanger mid-game temperature T2 is detected by temp probe II；
It calculates: △ T=T1-T2；
If 3) t1 < t < t2, turn in next step；If t >=t2 goes to step 9；Wherein: t1, t2 are preset time, and t1 < t2；
If 4) △ T < m1, turn in next step；Otherwise, return step 2)；Wherein: m1 is temperature preset value；
5) △ TD=(△ T) max-(△ T) min in any preset period of time t3 is calculated；If △ TD < m2, turn in next step；It is no
Then, return step 2)；Wherein: m2 is temperature preset value；
6) protection act is executed, t is reset；Turn in next step；
7) frequency n of the execution protection act in preset time t 4 is calculated；If 1) n < N, goes to step；Otherwise, turn next
Step；Wherein: N is preset times；
8) air-conditioning is shut down, and issues fault alarm, is waited artificial reparation, is exited judgement；
9) judgement, air-conditioner continuous operation are exited.
2. unit air-conditioner booting according to claim 1 abnormal judgement and guard method, it is characterized in that: the step
It is rapid 6) in the protection act are as follows: close compressor and outdoor fan, indoor fan continuation run according to original state, display therefore
Hinder code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910771077.1A CN110470038A (en) | 2019-08-21 | 2019-08-21 | A kind of judgement and guard method that unit air-conditioner booting is abnormal |
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| CN201910771077.1A CN110470038A (en) | 2019-08-21 | 2019-08-21 | A kind of judgement and guard method that unit air-conditioner booting is abnormal |
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| CN110470038A true CN110470038A (en) | 2019-11-19 |
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| CN201910771077.1A Pending CN110470038A (en) | 2019-08-21 | 2019-08-21 | A kind of judgement and guard method that unit air-conditioner booting is abnormal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344517A (en) * | 2020-11-06 | 2021-02-09 | 佛山市顺德区美的电子科技有限公司 | Air conditioner detection method, mobile air conditioner and computer readable storage medium |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner, and method and device for detecting air conditioner |
| CN103375874A (en) * | 2012-04-23 | 2013-10-30 | 珠海格力电器股份有限公司 | Air conditioner and refrigerant circulation abnormality protection control method for same |
| CN104676855A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner and coolant leakage detection method thereof |
| CN104964404A (en) * | 2015-05-26 | 2015-10-07 | 美的集团武汉制冷设备有限公司 | Air conditioner refrigerant leakage detection method and apparatus |
| CN105485856A (en) * | 2015-12-31 | 2016-04-13 | 广东美的制冷设备有限公司 | Air conditioning system and detection method of abnormity of air conditioning system in heating state |
| CN107894063A (en) * | 2017-10-31 | 2018-04-10 | 广东美的暖通设备有限公司 | A kind of method and multiple on-line system of multiple on-line system diagnosis |
| KR20180081212A (en) * | 2017-01-06 | 2018-07-16 | 엘지전자 주식회사 | Air conditioner and control method thereof |
| CN108317662A (en) * | 2018-02-05 | 2018-07-24 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN108397876A (en) * | 2018-02-27 | 2018-08-14 | 珠海格力电器股份有限公司 | The detection method and device of air conditioner coolant state |
| CN108954670A (en) * | 2018-09-10 | 2018-12-07 | 奥克斯空调股份有限公司 | A kind of failure pre-judging method, control system and the air conditioner of air conditioner |
| CN109442674A (en) * | 2018-11-01 | 2019-03-08 | Tcl空调器(中山)有限公司 | Compressor of air conditioner guard method, unit, storage medium and air conditioner |
| CN109539456A (en) * | 2017-09-21 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of guard method of air conditioner room unit and device |
| CN109612020A (en) * | 2018-11-28 | 2019-04-12 | 宁波奥克斯电气股份有限公司 | A kind of control method and its air conditioner of air conditioner |
| CN109990439A (en) * | 2019-04-04 | 2019-07-09 | 宁波奥克斯电气股份有限公司 | A kind of control method, control device and air conditioner that the commutation of air-conditioning four-way valve is abnormal |
-
2019
- 2019-08-21 CN CN201910771077.1A patent/CN110470038A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner, and method and device for detecting air conditioner |
| CN103375874A (en) * | 2012-04-23 | 2013-10-30 | 珠海格力电器股份有限公司 | Air conditioner and refrigerant circulation abnormality protection control method for same |
| CN104676855A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Variable-frequency air conditioner and coolant leakage detection method thereof |
| CN104964404A (en) * | 2015-05-26 | 2015-10-07 | 美的集团武汉制冷设备有限公司 | Air conditioner refrigerant leakage detection method and apparatus |
| CN105485856A (en) * | 2015-12-31 | 2016-04-13 | 广东美的制冷设备有限公司 | Air conditioning system and detection method of abnormity of air conditioning system in heating state |
| KR20180081212A (en) * | 2017-01-06 | 2018-07-16 | 엘지전자 주식회사 | Air conditioner and control method thereof |
| CN109539456A (en) * | 2017-09-21 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of guard method of air conditioner room unit and device |
| CN107894063A (en) * | 2017-10-31 | 2018-04-10 | 广东美的暖通设备有限公司 | A kind of method and multiple on-line system of multiple on-line system diagnosis |
| CN108317662A (en) * | 2018-02-05 | 2018-07-24 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN108397876A (en) * | 2018-02-27 | 2018-08-14 | 珠海格力电器股份有限公司 | The detection method and device of air conditioner coolant state |
| CN108954670A (en) * | 2018-09-10 | 2018-12-07 | 奥克斯空调股份有限公司 | A kind of failure pre-judging method, control system and the air conditioner of air conditioner |
| CN109442674A (en) * | 2018-11-01 | 2019-03-08 | Tcl空调器(中山)有限公司 | Compressor of air conditioner guard method, unit, storage medium and air conditioner |
| CN109612020A (en) * | 2018-11-28 | 2019-04-12 | 宁波奥克斯电气股份有限公司 | A kind of control method and its air conditioner of air conditioner |
| CN109990439A (en) * | 2019-04-04 | 2019-07-09 | 宁波奥克斯电气股份有限公司 | A kind of control method, control device and air conditioner that the commutation of air-conditioning four-way valve is abnormal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344517A (en) * | 2020-11-06 | 2021-02-09 | 佛山市顺德区美的电子科技有限公司 | Air conditioner detection method, mobile air conditioner and computer readable storage medium |
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Application publication date: 20191119 |