CN109373540B - Air conditioner control method and system and air conditioner - Google Patents
Air conditioner control method and system and air conditioner Download PDFInfo
- Publication number
- CN109373540B CN109373540B CN201811375261.6A CN201811375261A CN109373540B CN 109373540 B CN109373540 B CN 109373540B CN 201811375261 A CN201811375261 A CN 201811375261A CN 109373540 B CN109373540 B CN 109373540B
- Authority
- CN
- China
- Prior art keywords
- temperature
- air conditioner
- protection mode
- preset
- indoor coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010257 thawing Methods 0.000 claims abstract description 22
- 230000002265 prevention Effects 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner control method, an air conditioner control system and an air conditioner, wherein the air conditioner control method comprises the following steps: after the air conditioner enters a high-temperature prevention protection mode, acquiring the temperature T of an indoor coil of the air conditionerk(ii) a Judging the temperature T of the indoor coil pipekWhether or not it is less than the first preset temperature T1If yes, controlling the air conditioner to exit the high-temperature prevention protection mode; otherwise, acquiring the accumulated running time t after the compressor enters the high-temperature-resistant protection modeFortuneJudging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1And if so, controlling the air conditioner to exit the high-temperature-prevention protection mode. The invention solves the problem of abnormal defrosting caused by slow temperature reduction of the coil pipe in the high-temperature heating chamber in the high-temperature protection mode in the prior art.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and system and an air conditioner.
Background
The existing air conditioner with large cooling capacity generally adopts a mode of detecting the temperature of an outdoor unit tube in order to judge whether to enter a defrosting mode, and a unit can forcibly enter the defrosting mode when the temperature of the outdoor unit tube is detected to be below the temperature value of an outer disc of the defrosting mode and a compressor runs for a certain time. However, the general logic of the existing air conditioner is that when the whole air conditioner enters high temperature protection, the outdoor fan stops running, the temperature of the inner coil is slowly reduced under the heating condition, the temperature of the outer coil is rapidly reduced and even is lower than 0 ℃, the unpredictable problems such as mistaken defrosting and the like easily occur in the system, and the use comfort is influenced.
Disclosure of Invention
In view of the above, the present invention provides an air conditioner control method, system and air conditioner to solve the problem of abnormal defrosting of the existing large-cooling capacity air conditioner caused by slow temperature drop of the coil in the high-temperature heating chamber.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner control method includes the following steps:
after the air conditioner enters a high-temperature prevention protection mode, acquiring the temperature T of an indoor coil of the air conditionerk；
Judging the temperature T of the indoor coil pipekWhether or not it is less than the first preset temperature T1If yes, controlling the air conditioner to exit the high-temperature prevention protection mode;
otherwise, acquiring the accumulated running time t after the compressor enters the high-temperature-resistant protection modeFortuneJudging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1And if so, controlling the air conditioner to exit the high-temperature-prevention protection mode.
Further, after the air conditioner is kept in the high-temperature prevention protection mode, the temperature T of the indoor coil pipe is continuously obtainedkAnd the accumulated running time t after the compressor enters the high-temperature protection modeFortuneAnd judging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1(ii) a Until the accumulated running time t after the compressor enters the high temperature protection modeFortuneReaches the first preset time t1And the air conditioner exits the high-temperature protection mode.
Further, after the air conditioner enters the high-temperature protection mode, the temperature T of the indoor coil pipe of the air conditioner is obtainedkBefore, still include the step:
acquiring the temperature T of the indoor coil pipe in the heating mode of the air conditionerkAnd judging the temperature T of the indoor coil pipekWhether it is higher than the second preset temperature T2(ii) a If yes, controlling the air conditioner to enter a high-temperature-resistant protection mode; otherwise, the normal heating mode operation of the air conditioner is kept.
Further, the entering the high temperature protection mode includes: the outdoor fan stops running; the exiting the high temperature protection mode includes: and starting the outdoor fan to switch the air conditioner to a normal heating mode.
Further, the first preset temperature T1Less than the second preset temperature T2The first preset time t1The accumulated running time t of the compressor which is less than the preset time for forcibly entering the defrosting mode of the air conditioner2。
Further, the first preset temperature T1The range is as follows: t is not less than 47 DEG C1≤50℃。
Further, the second preset temperature T2The range is as follows: t is not less than 57 DEG C2≤60℃。
Further, the first pre-time t1The range is as follows: t is more than or equal to 201≤60min。
The present invention also provides an air conditioner control system, comprising:
a timing unit for recording the accumulated running time t after the compressor enters the high temperature protection modeFortuneAnd transmitted to the control unit;
a temperature detection unit for detecting the temperature T of the indoor coilkAnd transmitted to the control unit;
a control unit for obtaining the temperature T of the indoor coil pipe after determining that the air conditioner enters into a high temperature prevention protection modek(ii) a And judging the temperature T of the indoor coil pipekWhether or not it is less than the first preset temperature T1Determining the indoor coil temperature TkLess than the first preset temperature T1When the air conditioner is in the high-temperature protection mode, the air conditioner is controlled to exit the high-temperature protection mode; at the judgment of the indoor coil temperature TkNot less than the first preset temperature T1Then, the accumulated running time t of the compressor after entering the high-temperature protection mode is obtainedFortuneAnd judging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1An accumulated operation time t after determining that the compressor enters the high temperature prevention protection modeFortuneReaches the first preset time t1And when the air conditioner is in the high-temperature protection mode, controlling the air conditioner to exit the high-temperature protection mode.
Compared with the prior art, the air conditioner control method has the following advantages:
the invention adopts a mode of detecting the temperature of the indoor coil, adds the monitoring of the accumulated running time of the compressor after entering the high-temperature protection mode on the basis of the existing high-temperature protection method, and adds the accumulated running time of the compressor to the condition of judging to quit the high-temperature protection, thereby effectively avoiding the risk of entering the defrosting mode due to the long-term non-running of the external fan after entering the high-temperature protection and the slow temperature reduction of the indoor coil under the high-temperature heating of the air conditioner, improving the running stability and the use comfort of the air conditioner, and increasing the use sensitivity of users.
Compared with the prior art, the air conditioner control system and the air conditioner control method have the same advantages, and are not repeated herein.
Another objective of the present invention is to provide an air conditioner, which includes the above air conditioner control system; and the advantages of the air conditioner and the air conditioner control system are the same compared with the prior art, and are not described again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a flowchart of an air conditioner control method according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1, the present embodiment provides an air conditioner control method, including the following steps:
s1, obtaining the indoor coil temperature T of the air conditioner after the air conditioner enters the high temperature prevention protection modek；
S2, judging the indoor coil temperatureDegree TkWhether or not it is less than the first preset temperature T1If yes, the air conditioner is controlled to exit the high temperature protection mode, and the step S5 is entered; otherwise, go to step S3;
s3, when the indoor coil temperature T is reachedkNot less than the first preset temperature T1In time, the accumulated running time t after the compressor enters the high-temperature protection mode is obtainedFortune；
S4, judging the accumulated running time t after the compressor enters the high temperature protection modeFortuneWhether the first preset time t is reached1If yes, controlling the air conditioner to exit the high temperature protection mode, and entering step S5; if not, the step S6 is carried out, and the air conditioner is kept in the high-temperature prevention protection mode;
s5, controlling the air conditioner to exit the high temperature prevention protection mode;
s6, keeping the air conditioner in the high temperature prevention protection mode comprises the following steps: continuously obtaining the temperature T of the indoor coilkAnd the accumulated running time t after the compressor enters the high-temperature protection modeFortuneAnd judging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1That is, the start step S1 is repeated.
When the air conditioner is in a heating mode, the coil temperature of the indoor unit (also called inner tube temperature, or inner tube temperature, where the inner tube is an evaporator coil when the air conditioner is in the heating mode) may be high, and in order to prevent damage to hardware of the air conditioner, the air conditioner may be controlled to enter a high temperature protection mode. When the air conditioner is in the high-temperature protection mode, the external fan of the air conditioner stops running. Meanwhile, when the air conditioner reaches a specific condition after entering the high temperature protection mode, the air conditioner performs a defrosting operation.
The decision logic of the defrosting of the current general air conditioner is as follows: after the air conditioner enters into the high temperature protection mode, when the temperature T of the outdoor coil pipe is detectedeLess than the preset outdoor coil temperature T in the defrosting mode3And the compressor continues to operate for a time teReaching the preset accumulated running time t of the compressor forcibly entering the defrosting mode2And judging whether the unit is forced to enter a defrosting mode or not. And the general high temperature prevention judgment logic is as follows: by detecting the temperature T of the inner disckReach the preset temperature T for entering the high temperature protection2The outer fan is controlled to stop running when the detected indoor coil temperature TkLess than the preset exit high temperature protection temperature T1And controlling the outer fan to be started. When the external fan stops running, the temperature T of the indoor coil pipekTemperature T of outdoor coileAll start to drop, but the external environment has a certain wind speed, so the heat exchange performance of the outdoor unit is not greatly reduced after the external fan stops running, and the temperature T of the indoor coil pipekThe running time of the compressor is prolonged because the running time of the compressor does not decrease rapidly but decreases slowly. This can result in the coil temperature T being present in the roomkDrop to the preset temperature T for exit high temperature protection1Front, outside coil temperature TeAnd compressor run time duration teThe determination condition for forced entry into the defrosting mode, i.e., T, has been reachede＜T3，te＝t2. Therefore, the unit is forced to enter the defrosting mode when defrosting is not needed under the high-temperature protection mode, the use comfort of the air conditioner is influenced, and the use sensitivity of a user is reduced.
In order to overcome the above-mentioned problem of defrosting by mistake after entering the high temperature protection mode, this embodiment sets two conditions for exiting the high temperature protection mode, according to the obtained indoor coil temperature TkAnd the accumulated running time t after the compressor enters the high temperature protection modeFortuneAnd judging whether the air conditioner meets the condition of exiting the high-temperature-prevention protection mode. Wherein the conditions for exiting the high temperature protection state include: indoor coil temperature TkLess than a first predetermined temperature T1(ii) a Or; indoor coil temperature TkIs greater than or equal to a first preset temperature T1And the accumulated running time t after the compressor enters the high-temperature protection stateFortuneReaches the first preset time t1。
When the air conditioner is determined to meet one of the two conditions for exiting the high-temperature protection mode, the air conditioner may be controlled to exit the high-temperature protection mode, and the following steps for determining whether the air conditioner meets the condition for exiting the high-temperature protection mode are specifically described:
s201, obtaining the temperature T of the indoor coil pipe of the air conditionerkAnd a first predetermined temperature T1Comparing and judging the temperature T of the indoor coilkWhether or not it is less than the first preset temperature T1If yes, judging that the air conditioner reaches the condition of exiting the high-temperature-prevention protection mode, and entering a step S3 to control the air conditioner to exit the high-temperature-prevention protection mode; otherwise, go to step S202;
s202, indoor coil temperature TkNot less than a first preset temperature T1Then, the accumulated running time t after the compressor enters the high-temperature protection mode is continuously judgedFortuneWhether the first preset time t is reached1If yes, judging that the air conditioner reaches the condition of exiting the high-temperature-prevention protection mode, and entering the step S3 to control the air conditioner to exit the high-temperature-prevention protection mode; if not, continuously acquiring the temperature T of the indoor coil pipekAnd the accumulated running time t after the compressor enters the high-temperature protection modeFortune。
In step S1, the first preset temperature T is also preset1Wherein the first preset temperature T1The temperature value of the indoor coil pipe for the air conditioner to quit the high-temperature protection set by the operator according to the actual experience can also be determined and set through experiments on the air conditioner. It will be appreciated that the first preset temperature T1Less than a second predetermined temperature T2After the air conditioner enters the high temperature protection mode, the temperature T of the indoor coil pipekCan be controlled from a second preset temperature T2Gradually cooling to a first preset temperature T1. In the present embodiment, the first preset temperature T1The range of (A) is as follows: t is not less than 47 DEG C150 ℃ or less, preferably 49 ℃.
In step S2, the indoor coil temperature T of the air conditioner is acquiredkAnd a first predetermined temperature T1Comparing and judging the temperature T of the indoor coilkWhether or not it is less than the first preset temperature T1If the indoor coil temperature TkLess than a first predetermined temperature T1(i.e. T)k＜T1) If so, judging that the air conditioner reaches the condition of exiting the high-temperature-prevention protection mode, and entering a step S5 to control the air conditioner to exit the high-temperature-prevention protection mode; if the indoor coil temperature TkNot less than a first preset temperature T1(i.e. T)k≥T1) Then, the process proceeds to step S3.
When the indoor coil temperature TkNot less than a first preset temperature T1In time, the accumulated running time t after the compressor enters the high-temperature protection mode is obtained in step 3FortuneThen; the process proceeds to step S4, where the accumulated operation time t after the compressor enters the high temperature protection modeFortuneAnd a first preset time t1Comparing, and if the compressor enters the high temperature protection mode, the accumulated running time tFortuneReaches the first preset time t1If so, judging that the air conditioner reaches the condition of exiting the high-temperature-prevention protection mode, entering a step S5, and controlling the air conditioner to exit the high-temperature-prevention protection mode; if the compressor enters the high temperature protection mode, the accumulated running time tFortuneIs less than the first preset time t1Then, the flow proceeds to step S5 to continuously obtain the indoor coil temperature TkAnd the accumulated running time t after the compressor enters the high-temperature protection modeFortune。
Detecting the temperature T of the indoor coil pipe of the air conditioner after determining that the air conditioner enters a high temperature prevention protection mode, namely the outer fan stops runningkAnd starting timing the running time of the compressor after entering the high-temperature-prevention protection mode, and when the detected indoor coil temperature TkNot lower than a first preset temperature T1I.e. Tk≥T1Then, the timing duration (i.e. the accumulated running time t after the compressor enters the high temperature protection mode at this time) is obtainedFortune) And is compared with a preset first preset time t1Comparing, if the timing duration is less than the first preset time t1(i.e. t)Fortune＜t1) Judging the accumulated running time t after the compressor enters the high-temperature protection stateFortuneDoes not reach the first preset time t1(ii) a If the timing duration is equal to the first preset time t1 (i.e. t)Fortune＝t1) Then, thenDetermining the accumulated running time t after the compressor enters the high temperature protection modeFortuneReaches the first preset time t1. When t isFortune＝t1When the air conditioner is in the high-temperature protection mode, the air conditioner is controlled to exit the high-temperature protection mode; when t isFortune＜t1And keeping the air conditioner in a high-temperature-prevention protection mode, continuously detecting the temperature of the indoor coil pipe and recording the accumulated running time t of the compressorFortuneAnd repeating step S1; until the accumulated running time t after the compressor enters the high temperature protection modeFortuneReaches the first preset time t1And the air conditioner exits the high-temperature protection mode.
It is understood that, in the present embodiment, the first preset time t1The accumulated running time t of the compressor which is less than the preset time for forcibly entering the defrosting mode of the air conditioner2A first preset time t1The temperature value of the indoor coil pipe for the air conditioner to quit the high-temperature protection set by the operator according to the actual experience can also be determined and set through experiments on the air conditioner, and only t needs to be ensured1＜t2(ii) a Thus, in the high temperature protection mode, the operation time of the compressor reaches t after the high temperature protection mode1Then the air conditioner will exit the high temperature protection mode, so the air conditioner will not reach the condition of forced defrosting mode (t)e＝t2) Thereby avoiding the air conditioner from carrying out the defrosting operation by mistake in the high temperature protection. In the present embodiment, the first preset time t1The range of (A) is as follows: t is more than or equal to 201Less than or equal to 60min, preferably 40 min.
In this embodiment, after the air conditioner enters the high temperature protection mode, the temperature T of the indoor coil of the air conditioner is obtainedkBefore, the method also comprises the following steps of judging whether the air conditioner enters a high temperature protection mode:
s01, acquiring the temperature T of the indoor coil pipe in the heating mode of the air conditionerkAnd presetting a second preset temperature T2；
S02, judging the temperature T of the indoor coilkWhether it is higher than the second preset temperature T2(ii) a If yes, controlling the air conditioner to enter a high-temperature-resistant protection mode; otherwise, then protectAnd keeping the normal heating mode of the air conditioner to operate.
The outdoor unit comprises an indoor unit temperature detection component, such as a temperature sensing bulb or an indoor sensor, the indoor unit temperature detection component is arranged on a pipe body of the indoor unit heat exchanger and used for detecting the temperature of an indoor unit pipe, the start and stop of an outer fan of the air conditioner are controlled through the detected temperature, and the high-temperature-resistant timely detection of the air conditioner can be achieved. Second predetermined temperature T2The temperature value of the indoor coil pipe for preventing the air conditioner from entering the high temperature protection set by an operator according to actual experience can also be determined and set through experiments on the air conditioner. In this embodiment, the second predetermined temperature T2The range of (A) is as follows: t is not less than 57 DEG C260 ℃ or less, preferably 59 ℃.
In step S02, specifically, the indoor coil temperature T is setkAnd a second predetermined temperature T2Comparing to judge whether the air conditioner reaches the condition of entering into the high temperature prevention protection mode; and if the mode entering the high-temperature protection mode is determined to be reached, controlling the air conditioner to enter the high-temperature protection mode, and entering step S1. The conditions for entering the high-temperature protection mode are as follows: indoor coil temperature TkHigher than a second predetermined temperature T2I.e. Tk＞T2。
When the air conditioner is started in a high-temperature heating mode, the compressor is started, the running pressure of an air conditioner system is increased, and the temperature T of the indoor coil pipekGradually increasing. Indoor coil temperature T obtained by controller judgmentkWhether it is higher than the second preset temperature T2When the indoor coil temperature TkAt a second predetermined temperature T2When this is true, i.e. Tk≤T2Meanwhile, the air conditioner keeps running in a normal heating mode; when the air conditioner detects the temperature T of the indoor coilkGreater than a second predetermined temperature T2When is also Tk＞T2The air conditioner enters the high temperature protection mode and then proceeds to step S1. And entering a high-temperature-prevention protection mode comprises controlling the outdoor fan to stop running.
In the above process, the first preset temperature T1Second predetermined temperature T2A first preset time t1Cumulative operating time t of compressor forced to enter defrost mode2Can be set according to different air conditioner systems.
In the embodiment, the mode of detecting the temperature of the indoor coil is adopted, the monitoring of the accumulated running time of the compressor after the air conditioner enters the high-temperature protection mode is added on the basis of the existing high-temperature protection method, the accumulated running time of the compressor is added to the condition of judging to quit the high-temperature protection, the risk that the air conditioner enters the defrosting mode due to the fact that the outer fan does not run for a long time after entering the high-temperature protection and the temperature of the indoor coil is reduced slowly under high-temperature heating is effectively avoided, the running stability and the use comfort of the air conditioner are improved, and the use sensitivity of a user is improved.
Example 2
An air conditioning control system comprising:
a timing unit for recording the accumulated running time t after the compressor enters the high temperature protection modeFortuneAnd transmitted to the control unit;
the temperature detection unit comprises a temperature sensor arranged on the coil pipe of the indoor heat exchanger and used for detecting the temperature T of the indoor coil pipek(ii) a And transmitting the detection value to the control unit;
a control unit for obtaining the indoor coil temperature T of the air conditioner after determining that the air conditioner enters the high temperature prevention protection modek(ii) a And judges the indoor coil temperature TkWhether or not it is less than the first preset temperature T1Determining indoor coil temperature TkLess than a first predetermined temperature T1When the air conditioner is in the high-temperature protection mode, the air conditioner is controlled to exit the high-temperature protection mode; in determining indoor coil temperature TkNot less than a first preset temperature T1In time, the accumulated running time t after the compressor enters the high-temperature protection mode is obtainedFortuneAnd judging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1The accumulated operation time t after the compressor is judged to enter the high temperature prevention protection modeFortuneReaches the first preset time t1And when the air conditioner is in the high-temperature protection mode, the air conditioner is controlled to exit the high-temperature protection mode.
The control unit is also used for controlling the air conditioner to operate in a heating mode to acquire the temperature T of the indoor coil pipekAnd judging the temperature T of the indoor coilkWhether it is higher than the second preset temperature T2Determining indoor coil temperature TkHigher than a second predetermined temperature T2And controlling the air conditioner to enter a high-temperature-prevention protection mode.
Example 3
The embodiment provides an air conditioner, which comprises the air conditioner control system in the embodiment 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An air conditioner control method is characterized by comprising the following steps:
after the air conditioner enters a high-temperature prevention protection mode, acquiring the temperature T of an indoor coil of the air conditionerk；
Judging the temperature T of the indoor coil pipekWhether or not it is less than the first preset temperature T1If yes, controlling the air conditioner to exit the high-temperature prevention protection mode;
otherwise, acquiring the accumulated running time t after the compressor enters the high-temperature-resistant protection modeFortuneJudging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1If yes, controlling the air conditioner to exit the high-temperature prevention protection mode;
after the air conditioner enters a high-temperature-prevention protection mode, the temperature T of the indoor coil pipe of the air conditioner is obtainedkBefore, still include the step:
acquiring the temperature T of the indoor coil pipe in the heating mode of the air conditionerkAnd judging the temperature T of the indoor coil pipekWhether it is higher than the second preset temperature T2(ii) a If yes, controlling the air conditioner to enter a high-temperature-resistant protection mode; if not, keeping the normal heating mode operation of the air conditioner;
the first preset temperature T1Less than the second preset temperature T2The first preset time t1The accumulated running time t of the compressor which is less than the preset time for forcibly entering the defrosting mode of the air conditioner2。
2. The air conditioner control method according to claim 1, wherein after the air conditioner is maintained in the high temperature protection mode, the accumulated running time t after the compressor enters the high temperature protection mode is continuously obtainedFortuneUntil the accumulated running time t after the compressor enters the high-temperature protection modeFortuneReaches the first preset time t1And the air conditioner exits the high-temperature protection mode.
3. The air conditioner control method according to claim 2, wherein the entering of the high temperature protection mode includes: the outdoor fan stops running; the exiting the high temperature protection mode includes: and starting the outdoor fan to switch the air conditioner to a normal heating mode.
4. Air conditioner control method according to claim 1, characterized in that the first preset temperature T1The range is as follows: t is not less than 47 DEG C1≤50℃。
5. Air conditioner control method according to claim 1, characterized in that the second preset temperature T2The range is as follows: t is not less than 57 DEG C2≤60℃。
6. The air conditioner control method according to claim 1, wherein the first pre-time t is1The range is as follows: t is more than or equal to 201≤60min。
7. An air conditioning control system for implementing the air conditioning control method according to any one of claims 1 to 6, the control system further comprising:
timing unitFor recording the accumulated running time t after the compressor enters the high temperature protection modeFortuneAnd transmitted to the control unit;
a temperature detection unit for detecting the temperature T of the indoor coilkAnd transmitted to the control unit;
a control unit for obtaining the temperature T of the indoor coil pipe after determining that the air conditioner enters into a high temperature prevention protection modek(ii) a And judging the temperature T of the indoor coil pipekWhether or not it is less than the first preset temperature T1Determining the indoor coil temperature TkLess than the first preset temperature T1When the air conditioner is in the high-temperature protection mode, the air conditioner is controlled to exit the high-temperature protection mode; at the judgment of the indoor coil temperature TkNot less than the first preset temperature T1Then, the accumulated running time t of the compressor after entering the high-temperature protection mode is obtainedFortuneAnd judging the accumulated running time t after the compressor enters the high-temperature protection modeFortuneWhether the first preset time t is reached1An accumulated operation time t after determining that the compressor enters the high temperature prevention protection modeFortuneReaches the first preset time t1And when the air conditioner is in the high-temperature protection mode, controlling the air conditioner to exit the high-temperature protection mode.
8. An air conditioner characterized by comprising the air conditioning control system of claim 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375261.6A CN109373540B (en) | 2018-11-19 | 2018-11-19 | Air conditioner control method and system and air conditioner |
| PCT/CN2019/118436 WO2020103758A1 (en) | 2018-11-19 | 2019-11-14 | Air conditioner control method and system, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375261.6A CN109373540B (en) | 2018-11-19 | 2018-11-19 | Air conditioner control method and system and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109373540A CN109373540A (en) | 2019-02-22 |
| CN109373540B true CN109373540B (en) | 2020-07-07 |
Family
ID=65389223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375261.6A Active CN109373540B (en) | 2018-11-19 | 2018-11-19 | Air conditioner control method and system and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109373540B (en) |
| WO (1) | WO2020103758A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373540B (en) * | 2018-11-19 | 2020-07-07 | 奥克斯空调股份有限公司 | Air conditioner control method and system and air conditioner |
| CN110081558B (en) * | 2019-04-03 | 2020-07-31 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN110131832B (en) * | 2019-05-10 | 2021-07-30 | 宁波奥克斯电气股份有限公司 | Control method and device for high temperature protection of air conditioner |
| CN111878971A (en) * | 2020-06-30 | 2020-11-03 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
| CN112815495B (en) * | 2021-01-11 | 2022-03-08 | 珠海格力电器股份有限公司 | Thermal protection device and method for air conditioner indoor unit and air conditioner |
| CN117685631A (en) * | 2023-11-24 | 2024-03-12 | 江门市宝士制冷电器有限公司 | Mobile air conditioner overheat and frost prevention control method and mobile air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010046720A (en) * | 1999-11-15 | 2001-06-15 | 구자홍 | device for protecting compressor according to the temperature of pipes for air conditioner |
| JP2004190950A (en) * | 2002-12-11 | 2004-07-08 | Mitsubishi Electric Corp | Electric appliance storing package house |
| CN105987484B (en) * | 2015-02-28 | 2019-01-11 | 青岛海尔空调器有限总公司 | Defrosting control method and system when the frequent high temperature-proof of air-conditioning heating is protected |
| CN105180359B (en) * | 2015-09-02 | 2018-04-20 | 珠海格力电器股份有限公司 | High-temperature-prevention control method and device and air conditioner |
| CN108224698B (en) * | 2017-11-29 | 2019-11-19 | 珠海格力电器股份有限公司 | Air conditioning control method, device, storage medium and air-conditioning |
| CN108644971B (en) * | 2018-03-21 | 2020-11-10 | 珠海格力电器股份有限公司 | Control method and device for defrosting of air conditioner, storage medium and processor |
| CN109373540B (en) * | 2018-11-19 | 2020-07-07 | 奥克斯空调股份有限公司 | Air conditioner control method and system and air conditioner |
-
2018
- 2018-11-19 CN CN201811375261.6A patent/CN109373540B/en active Active
-
2019
- 2019-11-14 WO PCT/CN2019/118436 patent/WO2020103758A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020103758A1 (en) | 2020-05-28 |
| CN109373540A (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109373540B (en) | Air conditioner control method and system and air conditioner | |
| CN106568170B (en) | Air conditioner and heating cold-proof device and method thereof | |
| CN109990439B (en) | Control method and control device for abnormal reversing of air conditioner four-way valve and air conditioner | |
| US8151585B2 (en) | System and method of disabling an HVAC compressor based on a low pressure cut out | |
| CN115095955B (en) | Air conditioner and defrosting control method thereof | |
| CN106765859A (en) | The refrigerated dehumidification control method and air-conditioning system of air-conditioning | |
| CN106247713B (en) | High-temperature protection device and method for window type air conditioner | |
| US20230288087A1 (en) | Avoiding Coil Freeze in HVAC Systems | |
| CN110469993B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN115095954B (en) | Air conditioner and defrosting control method thereof | |
| CN108692423B (en) | Air conditioner defrosting control method | |
| EP3208549B1 (en) | Air conditioner | |
| CN111765607A (en) | Method for controlling electronic expansion valve of multi-split air conditioner, multi-split air conditioner and medium | |
| CN113587368B (en) | Cleaning method, device and equipment of air conditioner and storage medium | |
| CN112944593A (en) | Air conditioner and defrosting control method thereof | |
| US8113789B2 (en) | System and method of disabling an HVAC compressor based on a high pressure cut out | |
| CN110410938A (en) | Defrosting control method for air conditioner | |
| EP3674621B1 (en) | Air conditioner | |
| CN107560100B (en) | The control method of air conditioner coolant not foot protection | |
| CA3142405A1 (en) | A method and a system for preventing a freeze event using refrigerant temperature | |
| CN115654692B (en) | Air conditioner and control method thereof | |
| CN108800425B (en) | Control method and device for preventing frequent start and stop of air conditioner and air conditioner | |
| JP2605614B2 (en) | Operation control device for air conditioner | |
| CN111692709B (en) | Air conditioner defrosting control method, control device and air conditioner | |
| CN111219858B (en) | Multistage electric auxiliary heating water multi-connected air conditioner cold air prevention control method and system and air conditioner |
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 |