CN111102686A - Air conditioner defrosting control method, computer readable storage medium and air conditioner - Google Patents
Air conditioner defrosting control method, computer readable storage medium and air conditioner Download PDFInfo
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- CN111102686A CN111102686A CN201911281367.4A CN201911281367A CN111102686A CN 111102686 A CN111102686 A CN 111102686A CN 201911281367 A CN201911281367 A CN 201911281367A CN 111102686 A CN111102686 A CN 111102686A
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- air conditioner
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- defrost
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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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner defrosting control method, a computer readable storage medium and an air conditioner. On the premise that the air conditioning system needs defrosting, whether people exist in a room or not is judged through detection, different defrosting modes are selected according to different conditions, damage to user experience caused by traditional refrigeration mode defrosting is improved, energy consumption of air conditioning defrosting is reduced, meanwhile, rapid defrosting is achieved when no person exists, and heating time of the air conditioner is prolonged when the person is in an air conditioning room.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to an air conditioner defrosting control method.
Background
The air conditioner is used as a refrigerating or heating device, becomes a part of the life of people, and improves the comfort of the life of people. However, the air conditioner needs to consume more electric energy when running for a long time, and when the air conditioner runs for heating, the external machine heat exchanger frosts, and the heat exchange efficiency of the external machine heat exchanger is seriously influenced, so that the heating effect of the air conditioner is seriously influenced, and a large amount of electric energy is invisibly wasted. In order to remove frost generated on the outer unit heat exchanger during heating of the air conditioner, the outer unit heat exchanger often starts defrosting when a certain condition is satisfied. After defrosting is finished, the air conditioner can continue normal heating operation.
The common defrosting method of the existing household air conditioner is that the running mode of the air conditioner is switched into a refrigerating mode, and the high-temperature and high-pressure refrigerant enters an outer machine heat exchanger to release heat and defrost, or the air conditioner keeps the heating running unchanged, so that the heat supply to the indoor is reduced, and the higher-temperature refrigerant enters the outer machine heat exchanger to defrost.
The defrosting method of the air conditioner under the condition of switching the air conditioner into the refrigeration mode is characterized in that under the refrigeration operation of the air conditioner, high-temperature and high-pressure refrigerant enters an outer machine heat exchanger for defrosting. By using the defrosting method, low-temperature and low-pressure refrigerant liquid enters the indoor unit heat exchanger to be evaporated and absorb heat, so that the indoor temperature is reduced. In a common household air conditioner, a refrigeration operation is used for defrosting, and a cross-flow fan of an indoor unit can reduce the wind speed or stop the machine, but the result that the temperature of a room is reduced due to the fact that a refrigerant absorbs indoor heat cannot be avoided. And a decrease in the room temperature leads to a decrease in the comfort of the user.
The defrosting method for keeping the heating operation of the air conditioner is characterized in that the heat release quantity of a high-temperature and high-pressure refrigerant entering an indoor machine heat exchanger is reduced, the high-temperature refrigerant enters an outdoor machine heat exchanger to release heat and defrost, the refrigerant is heated by an electric heating element to increase enthalpy, enters a compressor and is compressed and then is sent to the indoor machine to supply heat. The defrosting method reduces the influence on the room temperature during defrosting, reduces the heat release of the refrigerant to the room, can avoid the heat release of the refrigerant to the room from being too small after the refrigerant is heated by the electric heating element to increase the enthalpy, avoids the too large reduction range of the room temperature, and reduces the influence on the comfort level of a user during defrosting.
However, the defrosting method in heating operation is not energy-saving, which increases energy consumption, if no person or people leave the air-conditioning room for defrosting, the energy is wasted, and the energy loss is very great after long-term accumulation. If the detection device for detecting whether personnel exist in the indoor unit can be added to the indoor unit, the defrosting operation can be selected by judging whether the personnel exist in the indoor unit or not, so that the electric energy is saved, and the energy waste is avoided.
For example, chinese patent application No. CN201910081748.1 discloses a method for removing frost from an outdoor unit of an air conditioner, and more particularly, discloses detecting whether defrosting is required by detecting wind pressure at an air outlet of the outdoor unit of the air conditioner, but does not solve the energy waste of defrosting by using a heating mode heating element when no person or person temporarily leaves an air-conditioned room.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel air conditioner defrosting control method, which realizes an optimal defrosting scheme aiming at different conditions, achieves the aim of completely and cleanly defrosting, and does not influence the comfortable experience of a user.
In order to achieve the purpose, the invention adopts the following technical scheme:
a defrosting control method for an air conditioner comprises the steps that when the air conditioner runs in a heating mode, whether a person exists in a space where the air conditioner is located is detected through a sensor, if the person exists and the air conditioner meets a defrosting condition is judged, the air conditioner is controlled to run in a first defrosting mode to defrost an outdoor unit of the air conditioner, and if the person does not exist, the air conditioner is controlled to run in a second defrosting mode to defrost the outdoor unit of the air conditioner. On the premise that the air conditioning system needs defrosting, whether people exist in a room or not is judged through detection, different defrosting modes are selected according to different conditions, damage to user experience caused by traditional refrigeration mode defrosting is improved, energy consumption of air conditioning defrosting is reduced, meanwhile, rapid defrosting is achieved when no person exists, and heating time of the air conditioner is prolonged when the person is in an air conditioning room.
Further, the first defrosting mode specifically includes: when the air conditioner is judged to be in the space and needs defrosting, the air conditioner continuously operates the heating mode and simultaneously starts the electric heating element to defrost the outdoor unit of the air conditioner. In the air-conditioning room with personnel, when the air conditioner needs defrosting, the air conditioner can not select to defrost in a refrigeration mode, but can defrost in a heating and heating element mode, the room temperature is guaranteed, and the comfort level of a user is guaranteed.
Further, the second defrost mode specifically includes: and when the air conditioner is judged to be unmanned and needs defrosting, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner. In an air-conditioning room without people or people temporarily leaving, when the air conditioner needs defrosting, the air conditioner does not select to add the heating element in the heating mode to defrost, but can defrost in the cooling mode, and therefore electric energy is saved.
Further, the second defrost mode specifically includes: and when the air conditioner is judged to be unmanned and does not meet the defrosting condition, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner. After the personnel leave the air-conditioned room temporarily, if the air conditioner runs for a period of time and does not reach the defrosting condition, the quick defrosting in the primary refrigeration mode is also carried out, so that the time for the air conditioner to reach the defrosting condition is prolonged, and the heating time of the air conditioner when the personnel are in the air-conditioned room is prolonged.
Further, the second defrost mode specifically includes: and when the space where the air conditioner is located is judged to be unmanned and the air conditioner needs defrosting, controlling the air conditioner to circularly and alternately operate a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode. By controlling the alternate operation of the heating mode and the refrigerating mode, on one hand, the defrosting purpose can be achieved, on the other hand, the temperature in the room is guaranteed to be kept in a human body comfortable range, the situation that a user suddenly returns to the room is prevented, and the comfort of the temperature in the room is guaranteed.
The utility model provides an air conditioner defrosting control system, includes detecting element, logic judgement unit, execution unit and defrosting unit, the detecting element is used for detecting indoor personnel and exists the condition, logic judgement unit is used for judging whether indoor personnel exist and analysis concrete condition, corresponding defrosting mode is opened according to the result of logic judgement unit to the execution unit, defrosting unit is used for the defrosting.
Further, the specific conditions of the judgment result of the logic judgment unit include that people are in the room, no people are in the room and do not return to the room in a short time, and no people are in the room and return to the room in a short time.
Further, if the logic judgment unit judges that no person is in the room and does not return to the room in a short time, the execution unit starts a second defrosting mode, namely, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner; if the logic judgment unit judges that no person is in the room and the air conditioner returns to the room in a short time, the execution unit starts a second defrosting mode, namely controls the air conditioner to circularly and alternately run a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode.
A computer-readable storage medium storing a computer program that when invoked by a processor implements the air conditioner defrost control method of any of the above.
An air conditioner comprising a processor and a memory for storing a computer program, wherein the computer program when invoked by the processor implements any of the air conditioner defrost control methods described above.
The defrosting control method of the air conditioner, the computer readable storage medium and the air conditioner provided by the invention have the beneficial effects that: on the premise that an air conditioning system needs defrosting, whether a person exists in an air conditioning room is judged, if yes, a heating element mode is adopted for defrosting, and if not, a refrigerating mode is adopted for defrosting. The damage of the traditional refrigeration mode defrosting to user experience is improved, the energy consumption of air conditioner defrosting is reduced, meanwhile, rapid defrosting is achieved when no person exists, the heating time of an air conditioner is prolonged when the person is in an air conditioning room, energy is saved, and the user experience is guaranteed.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example 1: an air conditioner defrosting control method.
As shown in fig. 1, when the air conditioning system is operated for a period of time for heating, the outdoor heat exchanger always releases heat to the external environment, frost may be generated on the outdoor heat exchanger after the period of time, and the frost on the outdoor heat exchanger increases the heat conduction resistance, which may seriously affect the heating effect and waste energy. In order to remove frost generated during heating, the air conditioner usually starts defrosting after running for a certain period of time or when an outdoor evaporator meets a certain condition, and when defrosting is needed, a detection unit detects that indoor personnel exist.
When the air conditioner is judged to be in the space and needs defrosting, the air conditioner continuously operates the heating mode and simultaneously starts the electric heating element to defrost the outdoor unit of the air conditioner. In the air-conditioning room with personnel, when the air conditioner needs defrosting, the air conditioner can not select to defrost in a refrigeration mode, but can defrost in a heating and heating element mode, the room temperature is guaranteed, and the comfort level of a user is guaranteed.
And when the air conditioner is judged to be unmanned and needs defrosting, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner. In an air-conditioning room without people or people temporarily leaving, when the air conditioner needs defrosting, the air conditioner does not select to add the heating element in the heating mode to defrost, but can defrost in the cooling mode, and therefore electric energy is saved.
And when the air conditioner is judged to be unmanned and does not meet the defrosting condition, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner. After the personnel leave the air-conditioned room temporarily, if the air conditioner runs for a period of time and does not reach the defrosting condition, the quick defrosting in the primary refrigeration mode is also carried out, so that the time for the air conditioner to reach the defrosting condition is prolonged, and the heating time of the air conditioner when the personnel are in the air-conditioned room is prolonged.
And when the space where the air conditioner is located is judged to be unmanned and the air conditioner needs defrosting, controlling the air conditioner to circularly and alternately operate a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode. By controlling the alternate operation of the heating mode and the refrigerating mode, on one hand, the defrosting purpose can be achieved, on the other hand, the temperature in the room is guaranteed to be kept in a human body comfortable range, the situation that a user suddenly returns to the room is prevented, and the comfort of the temperature in the room is guaranteed.
Example 2: an air conditioner defrosting control system.
The utility model provides an air conditioner defrosting control system, includes detecting element, logic judgement unit, execution unit and defrosting unit, the detecting element is used for detecting indoor personnel and exists the condition, logic judgement unit is used for judging whether indoor personnel exist and analysis concrete condition, corresponding defrosting mode is opened according to the result of logic judgement unit to the execution unit, defrosting unit is used for the defrosting.
The specific conditions of the judgment result of the logic judgment unit comprise that people exist in a room, no people exist in the room and do not return to the room in a short time, no people exist in the room and return to the room in a short time, if the logic judgment unit judges that people exist in the room, the execution unit starts a first defrosting mode, namely, the air conditioner continuously operates a heating mode and simultaneously starts the electric heating element to defrost an outdoor unit of the air conditioner.
If the logic judgment unit judges that no person is in the room and the air conditioner does not return to the room in a short time, the execution unit starts a second defrosting mode, namely, the air conditioner operates a refrigerating mode to defrost the outdoor unit of the air conditioner; if the logic judgment unit judges that no person is in the room and the air conditioner returns to the room in a short time, the execution unit starts a second defrosting mode, namely controls the air conditioner to circularly and alternately run a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode.
Example 3: a computer readable storage medium.
A computer-readable storage medium storing a computer program that implements the air conditioner defrost control method of embodiment 1 when invoked by a processor.
Example 4: an air conditioner.
An air conditioner comprising a processor and a memory for storing a computer program, wherein the computer program, when invoked by the processor, implements the air conditioner defrost control method of embodiment 1.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (10)
1. A defrosting control method for an air conditioner is characterized in that when the air conditioner runs in a heating mode, whether a person exists in a space where the air conditioner is located is detected through a sensor, if the person exists and the air conditioner meets a defrosting condition, the air conditioner is controlled to run in a first defrosting mode to defrost an outdoor unit of the air conditioner, and if the person does not exist, the air conditioner is controlled to run in a second defrosting mode to defrost the outdoor unit of the air conditioner.
2. The air conditioner defrost control method of claim 1, wherein the first defrost mode is specifically: when the air conditioner is judged to be in the space and needs defrosting, the air conditioner continuously operates the heating mode and simultaneously starts the electric heating element to defrost the outdoor unit of the air conditioner.
3. The air conditioner defrost control method of claim 1, wherein the second defrost mode is specifically: and when the air conditioner is judged to be unmanned and needs defrosting, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner.
4. The air conditioner defrost control method of claim 1, wherein the second defrost mode is specifically: and when the air conditioner is judged to be unmanned and does not meet the defrosting condition, the air conditioner operates the refrigeration mode to defrost the outdoor unit of the air conditioner.
5. The air conditioner defrost control method of claim 1, wherein the second defrost mode is specifically: and when the space where the air conditioner is located is judged to be unmanned and the air conditioner needs defrosting, controlling the air conditioner to circularly and alternately operate a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode.
6. The air conditioner defrosting control system is characterized by comprising a detection unit, a logic judgment unit, an execution unit and a defrosting unit, wherein the detection unit is used for detecting the existence condition of indoor personnel, the logic judgment unit is used for judging whether the indoor personnel exist or not and analyzing the specific conditions, the execution unit starts a corresponding defrosting mode according to the result of the logic judgment unit, and the defrosting unit is used for defrosting.
7. The defrost control system for an air conditioner according to claim 6, wherein the logic determining unit determines that the specific conditions of the indoor environment include a presence of people, no people in the indoor environment and no return to the indoor environment for a short time, and no people in the indoor environment and return to the indoor environment for a short time, and if the logic determining unit determines that the indoor environment is present, the execution unit turns on the first defrost mode, that is, the air conditioner continues to operate the heating mode while the electric heating element is turned on to defrost the outdoor unit of the air conditioner.
8. The air conditioner defrost control system of claim 7, wherein if the logic determination unit determines that no person is in the room and does not return to the room for a short time, the execution unit turns on a second defrost mode, i.e., the air conditioner operates the cooling mode to defrost the outdoor unit of the air conditioner; if the logic judgment unit judges that no person is in the room and the air conditioner returns to the room in a short time, the execution unit starts a second defrosting mode, namely controls the air conditioner to circularly and alternately run a heating mode and a refrigerating mode so as to defrost the outdoor unit of the air conditioner in the refrigerating mode.
9. A computer-readable storage medium storing a computer program, wherein the computer program when invoked by a processor implements the air conditioner defrost control method of any of claims 1-5.
10. An air conditioner comprising a processor and a memory for storing a computer program, wherein the computer program when invoked by the processor implements the air conditioner defrost control method of any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281367.4A CN111102686A (en) | 2019-12-13 | 2019-12-13 | Air conditioner defrosting control method, computer readable storage medium and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281367.4A CN111102686A (en) | 2019-12-13 | 2019-12-13 | Air conditioner defrosting control method, computer readable storage medium and air conditioner |
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| CN111102686A true CN111102686A (en) | 2020-05-05 |
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| CN201911281367.4A Pending CN111102686A (en) | 2019-12-13 | 2019-12-13 | Air conditioner defrosting control method, computer readable storage medium and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198866A (en) * | 2021-11-26 | 2022-03-18 | 青岛海尔空调电子有限公司 | Multi-split air conditioner defrosting control method and multi-split air conditioner |
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| JP5078681B2 (en) * | 2007-10-03 | 2012-11-21 | パナソニック株式会社 | Air conditioner |
| CN103097824A (en) * | 2010-09-09 | 2013-05-08 | 松下电器产业株式会社 | Air conditioner |
| CN104422086A (en) * | 2013-08-26 | 2015-03-18 | 松下电器产业株式会社 | Air conditioner |
| CN107449099A (en) * | 2017-06-20 | 2017-12-08 | 青岛海尔空调器有限总公司 | The control method and control device of air-conditioning |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5078681B2 (en) * | 2007-10-03 | 2012-11-21 | パナソニック株式会社 | Air conditioner |
| CN101392940A (en) * | 2008-11-03 | 2009-03-25 | 广州松下空调器有限公司 | Air conditioner control method |
| CN103097824A (en) * | 2010-09-09 | 2013-05-08 | 松下电器产业株式会社 | Air conditioner |
| CN104422086A (en) * | 2013-08-26 | 2015-03-18 | 松下电器产业株式会社 | Air conditioner |
| CN107449099A (en) * | 2017-06-20 | 2017-12-08 | 青岛海尔空调器有限总公司 | The control method and control device of air-conditioning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114198866A (en) * | 2021-11-26 | 2022-03-18 | 青岛海尔空调电子有限公司 | Multi-split air conditioner defrosting control method and multi-split air conditioner |
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Application publication date: 20200505 |