CN111271834A - Frequency reduction control method of air conditioner and air conditioner - Google Patents
Frequency reduction control method of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN111271834A CN111271834A CN201910454448.3A CN201910454448A CN111271834A CN 111271834 A CN111271834 A CN 111271834A CN 201910454448 A CN201910454448 A CN 201910454448A CN 111271834 A CN111271834 A CN 111271834A
- Authority
- CN
- China
- Prior art keywords
- threshold
- temperature
- protection
- outer coil
- air conditioner
- 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.)
- Pending
Links
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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a frequency reduction control method of an air conditioner and the air conditioner. The frequency reduction control method of the air conditioner comprises the following steps: when the measured temperature T of the outer coil pipePan testGreater than the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdThe air conditioner adjusts the running frequency to a protection frequency FProtection of(ii) a Wherein the air conditioner measures the temperature T according to the external environmentCircular surveyFor the outer coil pipe, a frequency reduction protection temperature threshold TDisc thresholdAnd (6) adjusting. The frequency reduction control method of the air conditioner and the air conditioner provided by the invention can adjust and adopt the proper frequency reduction protection threshold value according to the actual load state of the air conditioner, thereby improving the comfort and user experience of the air conditioner and better improving the air conditionerThe air conditioner is protected.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a frequency reduction control method of an air conditioner and the air conditioner.
Background
With the continuous progress of economy, the application of the air conditioner is more and more extensive, and the air conditioner can bring comfortable experience to users by adjusting the indoor environment temperature, and becomes one of the most common household appliances.
In the prior art, in the frequency control process of an air conditioning system, according to the temperature of an external coil, the frequency reduction protection or shutdown protection during refrigeration overload is executed. Namely: when the temperature of the outer coil pipe is detected to reach a certain fixed threshold value, the down-conversion protection or the shutdown protection is executed.
However, the prior art air conditioner adopts the external coil temperature threshold with fixed parameters as the judgment index under different operation loads. However, if the ambient temperature is high, the actually measured temperature of the outer coil of the air conditioner easily meets or reaches the temperature threshold of the outer coil, and at the moment, the air conditioner is switched to the lower limit frequency to operate, and even frequent protection shutdown can occur under the condition of excessive load, so that the comfort experience of a user is influenced.
Therefore, the prior art lacks a method for reasonably executing the frequency reduction protection or the shutdown protection according to the actual operation load condition of the air conditioner.
Disclosure of Invention
The invention solves the problems that: the unreasonable frequency reduction protection or shutdown protection of the air conditioner under the high-load operation state is avoided, and the comfort and the user experience of the air conditioner are improved.
In order to solve the above problems, the present invention provides a method for performing down protection or shutdown protection reasonably according to the actual operation load condition of the air conditioner. Specifically, the invention is realized by the following technical scheme.
A frequency reduction control method for air conditioner is characterized by that when the external coil pipe is actually measuredTemperature TPan testGreater than the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdThe air conditioner adjusts the running frequency to a protection frequency FProtection of(ii) a Wherein the air conditioner measures the temperature T according to the external environmentCircular surveyFor the outer coil pipe, a frequency reduction protection temperature threshold TDisc thresholdAnd (6) adjusting.
Through the technical scheme, the actual load state of the air conditioner can be judged according to the actual temperature condition of the external environment, and the threshold value of the frequency reduction protection is adjusted according to the load state of the air conditioner, so that frequent or unreasonable frequency reduction protection or shutdown protection is avoided, and the comfort and the user experience of the air conditioner are improved.
Further, when the external environment measures the temperature TCircular surveyGreater than a first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdIs set as the temperature threshold T of the first outer coil pipe frequency reduction protectionDisk threshold 1(ii) a When the external environment actually measures the temperature TCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2(ii) a Wherein the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Greater than the second outer coil pipe frequency reduction protection temperature threshold TDisk threshold 2。
Further, when the external environment measures the temperature TCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1And when the external environment measures the temperature TCircular surveyGreater than a second temperature threshold T of the external environmentRing threshold 2In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2。
Through the technical scheme, different outer coil pipe frequency reduction protection temperature thresholds are set under different load states of the air conditioner in operation, and when the temperature of the external environment is high, the temperature threshold of the external environment is correspondingly increased, so that the judgment threshold in frequency reduction control is set more reasonably. The problem that the air conditioner frequently performs unnecessary frequency reduction or shutdown caused by the fact that the temperature threshold of the fixed external coil pipe in the prior art is easily met or reached when the temperature of the external environment is high is avoided.
Further, during the compressor running time t of the air conditionerFortuneExceeding a compressor operating time threshold tExercise thresholdThen, measuring the temperature T actually of the outer coil pipePan testBefore detection.
Through the technical scheme, before the actually measured temperature of the outer coil pipe is detected, the running time of the compressor is firstly judged and acquired. The temperature test is started only when the compressor is operated for a certain time or after a certain time. Therefore, after the system frequency basically runs stably, test and comparison data are obtained, and the accuracy of measurement and judgment is improved.
Further, the measured temperature T of the outer coil pipe is measuredPan testAnd/or the actual temperature T of the external environmentCircular surveyCarrying out calibration; measuring the temperature T actually by adopting the calibrated external coil pipePan testAnd the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdComparing, and measuring temperature T by using the calibrated external environmentCircular surveyA temperature threshold T for frequency reduction protection of the outer coilDisc thresholdAnd (6) adjusting.
Further, the measured temperature T of the outer coil pipe is measuredPan testAnd/or the actual temperature T of the external environmentCircular surveyMeasuring for N times, averaging N times of measurement results to obtain calibrated measured temperature T of the outer coilPan testAnd/or the calibrated external environment actual temperature TCircular survey。
By the technical scheme, the test result of the actually measured temperature of the outer coil pipe and/or the actually measured temperature of the external environment can be more accurate, the error is further reduced, the accuracy of judgment is improved, and the possibility of misjudgment is reduced.
Further, the air conditioner measures the temperature T according to the external coil pipePan testFor said guard frequency FProtection ofTo carry outAnd (6) adjusting.
Further, when the measured temperature T of the outer coil pipe is measuredPan testIs greater than the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Then, the protection frequency F is setProtection ofSet to a first guard frequency FProtection 1(ii) a When the measured temperature T of the outer coil pipePan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1The guard frequency FProtection ofSet to a second guard frequency FProtection 2(ii) a Wherein the first guard frequency FProtection 1Less than the second guard frequency FProtection 2。
Further, when the measured temperature T of the outer coil pipe is measuredPan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1And when the measured temperature T of the outer coil pipePan testIs greater than the temperature threshold T of the frequency reduction protection of the second outer coil pipeDisk threshold 2The guard frequency FProtection ofSet to a second guard frequency FProtection 2。
Through the technical scheme, the air conditioner adopts different protection frequencies during frequency reduction protection according to different running or load states. When the load of the air conditioner is higher, the protection frequency is corrected to be smaller, so that the air conditioner is better and more reasonably subjected to frequency reduction protection while comfortable experience is brought to a user, and the service life of the air conditioner is prolonged.
The invention also provides an air conditioner, and the air conditioner adopts the frequency reduction control method of the air conditioner to carry out frequency reduction control.
The frequency reduction control method of the air conditioner and the air conditioner can adjust and adopt the proper frequency reduction protection threshold value according to the actual load state of the air conditioner, thereby improving the comfort and user experience of the air conditioner and better protecting the air conditioner.
Drawings
Fig. 1 is a schematic diagram of a first process of a frequency reduction control method according to an embodiment of the invention;
fig. 2 is a schematic diagram of a second process of the down-conversion control method according to the embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment of the invention provides a frequency reduction control method of an air conditioner and the air conditioner adopting the frequency reduction control method of the air conditioner to carry out frequency reduction control. The frequency reduction control method comprises the following steps: when the measured temperature T of the outer coil pipePan testGreater than the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdThe air conditioner adjusts the running frequency to a protection frequency FProtection of(ii) a When the measured temperature T of the outer coil pipePan testLess than or equal to the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdAnd the air conditioner operates normally without executing down-conversion protection or shutdown protection operation. Wherein the air conditioner measures the temperature T according to the external environmentCircular surveyFor the outer coil pipe, a frequency reduction protection temperature threshold TDisc thresholdAnd (6) adjusting.
The measured temperature T of the outer coil pipePan testAnd the actual temperature T of the external environmentCircular surveyThe test method comprises the following steps: adopting an outer coil pipe temperature sensor to measure the actually measured temperature T of the outer coil pipePan testMeasuring by using an external environment temperature sensor to measure the actual temperature T of the external environmentCircular surveyThe measurement is performed. Outer coil pipe temperature sensor and external environment temperature sensor respectively with the mainboard of air conditioner carries out signal connection, works as outer coil pipe temperature sensor and external environment temperature sensor pass back sampled signal to the mainboard, the mainboard is right sampled signal carries out the filtering operation, and wherein, the filtering degree can be according to actual need, is decided and is adjusted by technical personnel in the field. After the filtering is finished, sampling signals acquired by the external coil pipe temperature sensor and the external environment temperature sensor are converted into digital signals by adopting an AD converter, so that the actually measured temperature T of the external coil pipe is obtainedPan testAnd the actual temperature T of the external environmentCircular survey。
In some embodiments of the invention, the temperature T is measured by measuring the temperature T of the outer coilPan testAnd/or said external environmental measurementsTemperature TCircular surveyCarrying out calibration; measuring the temperature T actually by adopting the calibrated external coil pipePan testAnd the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdComparing, and measuring temperature T by using the calibrated external environmentCircular surveyA temperature threshold T for frequency reduction protection of the outer coilDisc thresholdThe more accurate actually measured temperature T of the outer coil pipe can be obtained by adjustingPan testAnd the actual temperature T of the external environmentCircular survey。
The specific calibration method in the embodiment of the invention is as follows: measured temperature T of the outer coilPan testAnd/or the actual temperature T of the external environmentCircular surveyMeasuring for N times, averaging N times of measurement results to obtain calibrated measured temperature T of the outer coilPan testAnd/or the calibrated external environment actual temperature TCircular survey. Wherein the value of N can be determined and adjusted by those skilled in the art. Preferably, the number of measurement booklets is 64.
In the embodiment of the invention, when the temperature of the external environment is high, the temperature threshold of the external environment is correspondingly increased, so that the judgment threshold in the frequency reduction control is more reasonable to set. When the external environment actually measures the temperature TCircular surveyGreater than a first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdIs set as the temperature threshold T of the first outer coil pipe frequency reduction protectionDisk threshold 1(ii) a When the external environment actually measures the temperature TCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2(ii) a Wherein the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Greater than the second outer coil pipe frequency reduction protection temperature threshold TDisk threshold 2. According to the technical scheme, different outer coil down-conversion protection temperature thresholds are set under different load states of the air conditioner, so that the air conditioner is prevented from being heated when the external environment temperature is highFrequent and unnecessary downconversion of the protection devices occurs.
In some embodiments of the invention, the temperature T is measured when the external environment is presentCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1And when the external environment measures the temperature TCircular surveyGreater than a second temperature threshold T of the external environmentRing threshold 2In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2. When the external environment actually measures the temperature TCircular surveyLess than or equal to the external environment second temperature threshold TRing threshold 2And if so, indicating that the frequency reduction protection is not needed and the air conditioner operates normally.
In order to make the test result more accurate and avoid misjudgment and influence on the refrigeration effect, in some embodiments of the present invention, before the measured temperature of the external coil pipe is detected, the operation time of the compressor is first judged and obtained. That is, at the compressor operating time t of the air conditionerFortuneExceeding a compressor operating time threshold tExercise thresholdThen, measuring the temperature T actually of the outer coil pipePan testBefore detection, the temperature test can be started only when the compressor runs for a certain time or after a certain time. Therefore, after the system frequency basically runs stably, test and comparison data are obtained. Wherein the compressor running time threshold tExercise thresholdThe values of (a) can be determined and adjusted by those skilled in the art. Preferably, the compressor running time threshold tExercise thresholdThe value of (a) is 3 minutes.
In some embodiments of the present invention, the air conditioner may adopt different protection frequencies during the down protection according to different operation or load conditions. That is, the air conditioner measures the temperature T according to the external coil pipePan testFor said guard frequency FProtection ofAnd (6) adjusting. Specifically, when the measured temperature T of the external coil pipe is measuredPan testIs greater than the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Then, the protection frequency F is setProtection ofSet to a first guard frequency FProtection 1(ii) a When the outer coil pipe isMeasured temperature TPan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Then, the protection frequency F is setProtection ofSet to a second guard frequency FProtection 2(ii) a Wherein the first guard frequency FProtection 1Less than the second guard frequency FProtection 2. In some preferred embodiments of the invention, the temperature T is measured when the outer coil is at the measured temperature TPan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1And when the measured temperature T of the outer coil pipePan testIs greater than the temperature threshold T of the frequency reduction protection of the second outer coil pipeDisc threshold2 hour, the protection frequency FProtection ofSet to a second guard frequency FProtection of2. When the measured temperature T of the outer coil pipePan testIs less than the second temperature threshold T of the outer coil pipe frequency reduction protectionDisk threshold 2And if so, indicating that the frequency reduction protection is not needed and the air conditioner operates normally. When the load of the air conditioner is higher, the protection frequency is corrected to be smaller, the frequency reduction protection can be better carried out on the air conditioner, and the service life of the air conditioner is prolonged.
Example 1
Referring to fig. 1, in the present embodiment, the external environment is set to a first temperature threshold TRing threshold 1Setting the temperature of the external environment to 53 DEG CRing threshold 2Setting the temperature to 45 ℃, and reducing the frequency of the first external coil to protect the temperature threshold TDisk threshold 1Setting the temperature to 68 ℃ and reducing the frequency of the second external coil to protect the temperature threshold TDisk threshold 2The temperature was set to 65 ℃.
When the external environment actually measures the temperature TCircular surveyWhen the temperature is higher than 53 ℃, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet at 68 ℃; when the measured temperature T of the outer coil pipePan testIf the temperature is higher than 68 ℃, the air conditioner adjusts the running frequency to the protection frequency FProtection ofWhen the measured temperature T of the outer coil pipe is measuredPan testAnd when the temperature is less than or equal to 68 ℃, the air conditioner operates normally.
When the external environment actually measures the temperature TCircular surveyWhen the temperature is less than or equal to 53 ℃ and is more than 45 ℃, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet to 65 ℃; when the measured temperature T of the outer coil pipePan testIf the temperature is more than 65 ℃, the air conditioner adjusts the running frequency to the protection frequency FProtection ofWhen the measured temperature T of the outer coil pipe is measuredPan testAnd if the temperature is less than or equal to 65 ℃, the air conditioner operates normally.
Example 2
Referring to fig. 2, in the present embodiment, the operation time of the compressor is first determined and obtained when the compressor operation time t of the air conditioner is reachedFortuneExceeding a compressor operating time threshold tExercise thresholdThen, the temperature T of the external environment is measuredCircular surveyFirst temperature threshold T with external environmentRing threshold 1A comparison is made. Specifically, when the measured temperature T of the external coil pipe is measuredPan testIs greater than the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Then, the protection frequency F is setProtection ofSet to a first guard frequency FProtection 1(ii) a When the measured temperature T of the outer coil pipePan testLess than or equal to the first temperature threshold T of the outer coil pipe frequency reduction protectionDisk threshold 1Then, the protection frequency F is setProtection ofSet to a second guard frequency FProtection 2(ii) a Wherein the first guard frequency FProtection 1At 25HZ, the second guard frequency FProtection 2Is 30 HZ.
Setting the external environment to a first temperature threshold TRing threshold 1Set to 52 ℃ and set the external environment second temperature threshold TRing threshold 2Setting the temperature to 44 ℃, and reducing the frequency protection temperature threshold T of the first external coil pipeDisk threshold 1Setting the temperature to 67 ℃, and reducing the frequency of the second external coil to protect the temperature threshold TDisk threshold 2The temperature was set to 64 ℃.
When the external environment actually measures the temperature TCircular surveyWhen the temperature is higher than 52 ℃, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet at 67 ℃; when the measured temperature T of the outer coil pipePan testIf the temperature is higher than 67 ℃, the air conditioner adjusts the running frequency to 25HZ, and when the actually measured temperature T of the outer coil pipe is higher than the temperature TPan testAnd when the temperature is less than or equal to 67 ℃, the air conditioner normally operates.
When the external environment actually measures the temperature TCircular surveyLower the outer coil to a protective temperature threshold T less than or equal to 52 ℃ but greater than 44 ℃Disc thresholdSet to 64 ℃; when the measured temperature T of the outer coil pipePan testIf the temperature is higher than 64 ℃, the air conditioner adjusts the running frequency to 30HZ, and when the actually measured temperature T of the outer coil pipe is measuredPan testAnd when the temperature is less than or equal to 64 ℃, the air conditioner normally operates.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A frequency reduction control method of an air conditioner is characterized in that:
when the measured temperature T of the outer coil pipePan testGreater than the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdThe air conditioner adjusts the running frequency to a protection frequency FProtection of；
Wherein the air conditioner measures the temperature T according to the external environmentCircular surveyFor the outer coil pipe, a frequency reduction protection temperature threshold TDisc thresholdAnd (6) adjusting.
2. The frequency down control method of an air conditioner according to claim 1, wherein:
when the external environment actually measures the temperature TCircular surveyGreater than a first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdIs set as the temperature threshold T of the first outer coil pipe frequency reduction protectionDisk threshold 1；
When the external environment actually measures the temperature TCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2；
Wherein the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Greater than the second outer coil downconversion protectionTemperature threshold TDisk threshold 2。
3. The frequency down control method of an air conditioner according to claim 2, wherein: when the external environment actually measures the temperature TCircular surveyLess than or equal to the first temperature threshold T of the external environmentRing threshold 1And when the external environment measures the temperature TCircular surveyGreater than a second temperature threshold T of the external environmentRing threshold 2In time, the outer coil pipe is subjected to frequency reduction protection temperature threshold TDisc thresholdSet as the second outer coil down-conversion protection temperature threshold TDisk threshold 2。
4. The frequency reduction control method of an air conditioner according to any one of claims 1 to 3, wherein: at the compressor running time t of the air conditionerFortuneExceeding a compressor operating time threshold tExercise thresholdThen, measuring the temperature T actually of the outer coil pipePan testAnd (6) detecting.
5. The frequency reduction control method of an air conditioner according to any one of claims 1 to 3, wherein: measured temperature T of the outer coilPan testAnd/or the actual temperature T of the external environmentCircular surveyCarrying out calibration; measuring the temperature T actually by adopting the calibrated external coil pipePan testAnd the outer coil pipe frequency reduction protection temperature threshold TDisc thresholdComparing, and measuring temperature T by using the calibrated external environmentCircular surveyA temperature threshold T for frequency reduction protection of the outer coilDisc thresholdAnd (6) adjusting.
6. The frequency down control method of an air conditioner according to claim 5, wherein: measured temperature T of the outer coilPan testAnd/or the actual temperature T of the external environmentCircular surveyMeasuring for N times, averaging N times of measurement results to obtain calibrated measured temperature T of the outer coilPan testAnd/or the calibrated external environment actual temperature TCircular survey。
7. The frequency reduction control method of an air conditioner according to any one of claims 1 to 3, wherein: the air conditioner measures the temperature T according to the outer coil pipePan testFor said guard frequency FProtection ofAnd (6) adjusting.
8. The frequency down control method of an air conditioner according to claim 7, wherein:
when the measured temperature T of the outer coil pipePan testIs greater than the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1Then, the protection frequency F is setProtection ofSet to a first guard frequency FProtection 1；
When the measured temperature T of the outer coil pipePan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1The guard frequency FProtection ofSet to a second guard frequency FProtection 2；
Wherein the first guard frequency FProtection 1Less than the second guard frequency FProtection 2。
9. The frequency down control method of an air conditioner according to claim 8, wherein: when the measured temperature T of the outer coil pipePan testLess than or equal to the first outer coil pipe frequency reduction protection temperature threshold TDisk threshold 1And when the measured temperature T of the outer coil pipePan testIs greater than the temperature threshold T of the frequency reduction protection of the second outer coil pipeDisk threshold 2The guard frequency FProtection ofSet to a second guard frequency FProtection 2。
10. An air conditioner, characterized in that: the air conditioner performs the frequency reduction control by using the frequency reduction control method of the air conditioner according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454448.3A CN111271834A (en) | 2019-05-28 | 2019-05-28 | Frequency reduction control method of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910454448.3A CN111271834A (en) | 2019-05-28 | 2019-05-28 | Frequency reduction control method of air conditioner and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271834A true CN111271834A (en) | 2020-06-12 |
Family
ID=70996787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910454448.3A Pending CN111271834A (en) | 2019-05-28 | 2019-05-28 | Frequency reduction control method of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111271834A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701322A (en) * | 2021-09-02 | 2021-11-26 | 佛山市顺德区美的电子科技有限公司 | Air conditioner control method, controller, air conditioner and computer readable storage medium |
| CN114234383A (en) * | 2021-12-21 | 2022-03-25 | 北京小米移动软件有限公司 | Air conditioner control method and device |
| CN114234358A (en) * | 2021-12-27 | 2022-03-25 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109553A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Method for limiting inverter compressor maximum frequency according to outdoor environment temperature |
| JP2008249286A (en) * | 2007-03-30 | 2008-10-16 | Matsushita Electric Ind Co Ltd | Multi-chamber type air conditioner |
| CN102261720A (en) * | 2011-06-24 | 2011-11-30 | 宁波奥克斯电气有限公司 | Control method for preventing overtemperature in center of condenser of direct current (DC) multi-frequency conversion outdoor machine during refrigeration |
| CN105333563A (en) * | 2014-07-29 | 2016-02-17 | 海信（山东）空调有限公司 | Refrigeration control method and device and air conditioner |
| CN106403191A (en) * | 2016-09-30 | 2017-02-15 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN107101338A (en) * | 2017-05-09 | 2017-08-29 | 珠海格力电器股份有限公司 | A kind of air conditioning control method, device and a kind of air-conditioning |
| CN109323383A (en) * | 2018-09-12 | 2019-02-12 | 奥克斯空调股份有限公司 | Convertible frequency air-conditioner is in the control method of special mounting environment, control device and air conditioner |
| CN109405219A (en) * | 2018-11-06 | 2019-03-01 | 宁波奥克斯电气股份有限公司 | A kind of high-temperature refrigeration control method and air conditioner |
-
2019
- 2019-05-28 CN CN201910454448.3A patent/CN111271834A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109553A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Method for limiting inverter compressor maximum frequency according to outdoor environment temperature |
| JP2008249286A (en) * | 2007-03-30 | 2008-10-16 | Matsushita Electric Ind Co Ltd | Multi-chamber type air conditioner |
| CN102261720A (en) * | 2011-06-24 | 2011-11-30 | 宁波奥克斯电气有限公司 | Control method for preventing overtemperature in center of condenser of direct current (DC) multi-frequency conversion outdoor machine during refrigeration |
| CN105333563A (en) * | 2014-07-29 | 2016-02-17 | 海信（山东）空调有限公司 | Refrigeration control method and device and air conditioner |
| CN106403191A (en) * | 2016-09-30 | 2017-02-15 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN107101338A (en) * | 2017-05-09 | 2017-08-29 | 珠海格力电器股份有限公司 | A kind of air conditioning control method, device and a kind of air-conditioning |
| CN109323383A (en) * | 2018-09-12 | 2019-02-12 | 奥克斯空调股份有限公司 | Convertible frequency air-conditioner is in the control method of special mounting environment, control device and air conditioner |
| CN109405219A (en) * | 2018-11-06 | 2019-03-01 | 宁波奥克斯电气股份有限公司 | A kind of high-temperature refrigeration control method and air conditioner |
Non-Patent Citations (2)
| Title |
|---|
| 张新德主编: "《快学快修家用空调实用技能问答》", 31 March 2007 * |
| 赵锋等: "《传感器与检测技术》", 31 January 2011 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701322A (en) * | 2021-09-02 | 2021-11-26 | 佛山市顺德区美的电子科技有限公司 | Air conditioner control method, controller, air conditioner and computer readable storage medium |
| CN114234383A (en) * | 2021-12-21 | 2022-03-25 | 北京小米移动软件有限公司 | Air conditioner control method and device |
| CN114234383B (en) * | 2021-12-21 | 2023-08-08 | 北京小米移动软件有限公司 | Air conditioner control method and device |
| CN114234358A (en) * | 2021-12-27 | 2022-03-25 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
| CN114234358B (en) * | 2021-12-27 | 2022-12-13 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111271834A (en) | Frequency reduction control method of air conditioner and air conditioner | |
| US9850621B2 (en) | Dryer monitoring | |
| US11117670B2 (en) | Methods and apparatus to detect deicing heater conditions | |
| WO2020253175A1 (en) | Formaldehyde concentration measurement method and apparatus, and air purifier | |
| CN106908656B (en) | Current transformer with enhanced temperature measurement | |
| WO2019062510A1 (en) | Method and device for protection control of air conditioner | |
| CN111024416B (en) | Fault diagnosis method and system for train traction system | |
| CN110749025B (en) | Method and device for determining overall power of air conditioner | |
| CN110906508B (en) | Fault detection method and system for air conditioner sensor | |
| CN116111727A (en) | Comprehensive distribution box abnormity monitoring method based on dynamic temperature threshold | |
| US7855081B2 (en) | Methods of detecting RF interference in breath ethanol testing | |
| US20130151199A1 (en) | Systems and methods for use in monitoring an industrial facility | |
| CN104819786B (en) | The detection method and device of the temperature sensor of frequency-variable module in air conditioner | |
| US8472156B2 (en) | Method and device for supervising the sensitivity of a protection function | |
| CN112944734B (en) | Air conditioner compressor oil level determining method and air conditioner oil return control method | |
| CN115098285A (en) | Sensor detection data analysis system and method based on big data | |
| CN204287267U (en) | A kind of rectifier and testing current in resistance property instrument | |
| US11280771B2 (en) | Liquid chromatograph | |
| CN116448942A (en) | Gas concentration detection method, electronic device, and computer-readable storage medium | |
| CN111562531B (en) | Method and system for detecting sensitivity of GIS built-in ultrahigh frequency sensor | |
| CN108917134A (en) | A kind of body-sensing air quantity adjusting method, device and air conditioner | |
| CN112595909A (en) | Method for intelligent substation detection test | |
| CN108388949B (en) | Power equipment allocation method and system based on equipment relative service environment sensitivity | |
| CN106066431B (en) | Noise detection method and device | |
| CN113355479B (en) | Method and system for detecting related limit abnormity of steelmaking converter sublance |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200612 |