CN110631182A - Deicing control method for air conditioner outdoor unit chassis - Google Patents
Deicing control method for air conditioner outdoor unit chassis Download PDFInfo
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- CN110631182A CN110631182A CN201810642001.4A CN201810642001A CN110631182A CN 110631182 A CN110631182 A CN 110631182A CN 201810642001 A CN201810642001 A CN 201810642001A CN 110631182 A CN110631182 A CN 110631182A
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- outdoor
- air conditioner
- outdoor fan
- control method
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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
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioner control, and particularly relates to a deicing control method for a chassis of an air conditioner outdoor unit. In order to solve the problem that the outdoor unit chassis is easy to freeze and is not easy to melt under the condition of high humidity, the deicing control method for the outdoor unit chassis of the air conditioner comprises the following steps: after the air conditioner enters a defrosting mode, detecting the temperature of an outdoor coil of the air conditioner; and selectively controlling the outdoor fan of the air conditioner to reversely rotate according to the temperature of the outdoor coil. The invention controls the outdoor fan to reversely rotate by utilizing the hot air outside the outdoor coil pipe in the defrosting process of the air conditioner so as to blow the hot air to the outdoor unit chassis to melt the ice on the outdoor unit chassis. Furthermore, the invention also utilizes the positive rotation of the fan to accelerate the fluidity of the condensed water on the chassis of the outdoor unit so as to reduce the residual condensed water on the chassis of the outdoor unit.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to a deicing control method for a chassis of an air conditioner outdoor unit.
Background
When the air conditioner runs in a heating mode in winter, the surface temperature of the outdoor heat exchanger is reduced because the refrigerant evaporates and absorbs heat in the outdoor heat exchanger. If the air conditioner continues to operate in the heating mode when the outdoor temperature is extremely low, a large amount of frost may be condensed on the surface of the outdoor heat exchanger, thereby affecting the normal operation of the air conditioner. When the existing air conditioner is defrosted, the air conditioner is switched to a refrigeration mode, a refrigerant is condensed and releases heat in an outdoor heat exchanger, and the surface temperature of the outdoor heat exchanger is improved so as to remove frost condensed on the outdoor heat exchanger.
However, in a low-temperature and high-humidity environment, the outdoor unit of the air conditioner has the following two problems: firstly, because the environment humidity is relatively high, when the temperature of a base plate of the air conditioner outdoor unit is lower than 0 ℃, condensation and even icing can be formed on the outer side of the base plate, and the condenser can not heat and defrost the outer side of the base plate in the defrosting process, so that the condensation and icing can not be removed. Secondly, because the hydrophilicity of the chassis of the air conditioner outdoor unit is insufficient and the gradient of the chassis is too small, condensed water is easy to stay on the chassis, the liquidity is insufficient, the condensed water cannot be completely discharged, once the next heating cycle is started, ice can be formed on a condenser of the chassis, and the defrosting difficulty is increased.
Therefore, the present invention proposes a new method to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the above problems existing in the outdoor unit chassis of the air conditioner, the present invention provides a method for controlling deicing of the outdoor unit chassis of the air conditioner, the method for controlling defrosting includes the following steps: after the air conditioner enters a defrosting mode, detecting the temperature of an outdoor coil of the air conditioner; and selectively controlling the outdoor fan of the air conditioner to reversely rotate according to the temperature of the outdoor coil.
In a preferred embodiment of the above deicing control method, the step of "selectively controlling the outdoor fan of the air conditioner to reverse direction according to the outdoor coil temperature" includes: when the temperature of the outdoor coil pipe is higher than a first preset temperature, controlling the outdoor fan to rotate reversely for a first preset time at a first preset rotating speed; when the temperature of the outdoor coil pipe is lower than a first preset temperature and higher than 0 ℃, the outdoor fan is controlled to rotate at a second preset rotating speed for a second preset time.
In a preferred embodiment of the above deicing control method, the first preset temperature is any temperature between 2 and 3 ℃.
In a preferred embodiment of the above deicing control method, the first preset rotation speed is any rotation speed between 390 and 410 revolutions; and/or the second preset rotating speed is any rotating speed between 290 and 310 revolutions.
In a preferred embodiment of the above deicing control method, the first preset time is any time between 28 and 32 s; and/or the second preset time is any time between 28 and 32 s.
In a preferred embodiment of the above-described deicing control method, after the step of "selectively controlling reverse rotation of an outdoor fan of an air conditioner according to the outdoor coil temperature", the defrosting control method further includes: monitoring the reverse rotation time of the outdoor fan; and selectively controlling the outdoor fan to rotate forwards according to the reverse rotation time of the outdoor fan.
In a preferred embodiment of the above deicing control method, the step of "selectively controlling the forward rotation of the outdoor fan according to the reverse rotation time of the outdoor fan" includes: and when the reverse rotation time of the outdoor fan is longer than a third preset time, controlling the outdoor fan to rotate forwards.
In a preferred embodiment of the above deicing control method, the step of "selectively controlling the outdoor fan to rotate forward according to the reverse rotation time of the outdoor fan" further includes: after the outdoor fan is controlled to rotate positively, when the positive rotation time of the outdoor fan is longer than a fourth preset time, the outdoor fan is made to finish the positive rotation.
In a preferred embodiment of the above deicing control method, the third preset time is any time between 55 and 65 s; and/or the fourth preset time is any time between 55 and 65 s.
In a preferred embodiment of the above deicing control method, the time between the third presets is 60 seconds; and/or the fourth preset time is 60 s.
Aiming at the problem that the outdoor unit chassis is easy to freeze and is not easy to melt under the condition of high humidity, the invention utilizes hot air outside the outdoor coil pipe in the defrosting process of the air conditioner, namely controls the outdoor fan to reversely rotate to blow the hot air to the outdoor unit chassis so as to melt the ice of the outdoor unit chassis; aiming at the problem that the condensed water on the outdoor unit chassis cannot be discharged completely in time, the invention utilizes the positive rotation of the fan to accelerate the fluidity of the condensed water on the outdoor unit chassis so as to reduce the residual condensed water on the outdoor unit chassis.
Drawings
Fig. 1 is a flowchart of an air conditioner outdoor unit chassis deicing control method according to the present invention.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the method for controlling deicing of the chassis of the outdoor unit of the air conditioner of the present invention includes the following steps: s110, detecting the temperature of an outdoor coil of the air conditioner after the air conditioner enters a defrosting mode; and S120, selectively controlling the outdoor fan of the air conditioner to reversely rotate according to the temperature of the outdoor coil. Because the temperature of the coil pipe of the outdoor unit is usually above 0 ℃ in the defrosting process of the outdoor unit, the invention utilizes the reverse rotation of the fan to blow hot air around the coil pipe of the outdoor unit to the outer side of the chassis of the outdoor unit aiming at the icing phenomenon of the outer side of the chassis of the outdoor unit, thereby heating the chassis of the outdoor unit and further effectively removing the icing of the outer side of the chassis of the outdoor unit.
Specifically, in step S120, when the outdoor coil temperature is higher than a first preset temperature, the outdoor fan is controlled to rotate in reverse at a first preset rotation speed for a first preset time; and when the temperature of the outdoor coil pipe is lower than the first preset temperature and higher than 0 ℃, controlling the outdoor fan to rotate reversely for a second preset time at a second preset rotating speed. For example, when the temperature of the outdoor coil pipe is higher than 3 ℃, the outdoor fan is rotated reversely at a rotation speed of 400 revolutions for 30 seconds; and if the temperature of the outdoor coil pipe is lower than 2 ℃ (higher than 0 ℃), reversing the outdoor fan at the rotating speed of 300 revolutions for 30 seconds. That is, when the temperature of the outdoor coil is high, the rotation speed of the outdoor fan is also high, and when the temperature of the outdoor coil is low, the rotation speed of the outdoor fan is also low.
It should be noted that the first preset time, the first preset rotation speed, the first preset time, the second preset rotation speed, and the second preset time are exemplary illustrations. For example, the first predetermined time may be any temperature between 2-3 ℃; the first preset rotating speed can also be any rotating speed between 390 and 410 revolutions; the first preset time may be any time between 28-32 s; the second preset rotating speed can be any rotating speed between 290 and 310 revolutions; the second preset time may be any time between 28-32 s. The skilled person can flexibly set the preset time, the preset temperature and the preset rotating speed according to the actual situation.
Referring back to fig. 1, after step S120, the method for controlling deicing of the chassis of the outdoor unit of the air conditioner further includes: s130, monitoring the reverse rotation time of the outdoor fan; and S140, selectively controlling the outdoor fan to rotate forwards according to the reverse rotation time of the outdoor fan. In the defrosting process of the air conditioner, the outdoor fan is usually in a closed state, and the applicant finds through experiments that after the outdoor unit chassis is frozen into water, the outdoor fan rotates forwards to be more beneficial to the mobility of the water of the outdoor unit chassis, so that the residual water of the outdoor unit chassis is reduced.
Specifically, in step S140, when the reverse rotation time of the outdoor fan is greater than a third preset time, the outdoor fan is controlled to rotate forward. For example, when the reverse rotation time of the outdoor unit fan is longer than 1 minute, the ice on the outdoor unit chassis is changed into water, and the outdoor unit fan can be controlled to rotate forward to accelerate the mobility of the water on the outdoor unit chassis, so as to reduce the residual water on the outdoor unit chassis. More specifically, when the forward rotation time of the outdoor fan is greater than the fourth preset time, the outdoor fan is caused to end the forward rotation. For example, when the forward rotation time of the outdoor fan is longer than 1 minute, which indicates that the residual water in the chassis of the outdoor unit has been removed, the forward rotation of the outdoor fan may be stopped.
It should be noted that the third preset time and the fourth preset time are exemplary. For example, the third preset time may be any time between 55-65s, and the fourth preset time may be any time between 55-65 s. Those skilled in the art can flexibly set the preset time according to the actual use scenario of the air conditioner.
In summary, in order to solve the problem that the outdoor unit chassis is easy to freeze and not easy to melt under the condition of high humidity, the invention utilizes hot air outside the outdoor coil pipe in the defrosting process of the air conditioner, namely controls the outdoor fan to reversely rotate to blow the hot air to the outdoor unit chassis so as to melt the ice on the outdoor unit chassis; aiming at the problem that the condensed water on the outdoor unit chassis cannot be discharged completely in time, the invention utilizes the positive rotation of the fan to accelerate the fluidity of the condensed water on the outdoor unit chassis so as to reduce the residual condensed water on the outdoor unit chassis.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A defrosting control method for an air conditioner outdoor unit chassis is characterized by comprising the following steps:
after the air conditioner enters a defrosting mode, detecting the temperature of an outdoor coil of the air conditioner;
and selectively controlling the outdoor fan of the air conditioner to reversely rotate according to the temperature of the outdoor coil.
2. The deicing control method according to claim 1, wherein the step of selectively controlling outdoor fan reversal of an air conditioner according to the outdoor coil temperature comprises:
when the temperature of the outdoor coil pipe is higher than a first preset temperature, controlling the outdoor fan to rotate reversely for a first preset time at a first preset rotating speed;
when the temperature of the outdoor coil pipe is lower than a first preset temperature and higher than 0 ℃, the outdoor fan is controlled to rotate at a second preset rotating speed for a second preset time.
3. Deicing control method according to claim 2, characterized in that said first preset temperature is any temperature between 2 and 3 ℃.
4. Deicing control method according to claim 2, characterized in that said first preset rotation speed is any rotation speed between 390-; and/or
The second preset rotating speed is any rotating speed between 290 revolutions and 310 revolutions.
5. Deicing control method according to claim 2, characterized in that said first preset time is any time between 28 and 32 s; and/or
The second preset time is any time between 28 and 32 s.
6. Deicing control method according to any one of claims 1 to 5, characterized in that, after the step of "selectively controlling outdoor fan reverse rotation of air conditioner according to the outdoor coil temperature", the defrosting control method further comprises:
monitoring the reverse rotation time of the outdoor fan;
and selectively controlling the outdoor fan to rotate forwards according to the reverse rotation time of the outdoor fan.
7. The deicing control method according to claim 6, wherein the step of selectively controlling the forward rotation of the outdoor fan according to the reverse rotation time of the outdoor fan comprises:
and when the reverse rotation time of the outdoor fan is longer than a third preset time, controlling the outdoor fan to rotate forwards.
8. The deicing control method according to claim 7, wherein the step of selectively controlling the forward rotation of the outdoor fan according to the reverse rotation time of the outdoor fan further comprises:
after the outdoor fan is controlled to rotate positively, when the positive rotation time of the outdoor fan is longer than a fourth preset time, the outdoor fan is made to finish the positive rotation.
9. Deicing control method according to claim 8, characterized in that between said third presets is any time between 55-65 s; and/or
The fourth preset time is any time between 55 and 65 s.
10. Deicing control method according to claim 9, characterized in that between said third presets is 60 s; and/or
The fourth preset time is 60 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642001.4A CN110631182B (en) | 2018-06-21 | 2018-06-21 | Deicing control method for air conditioner outdoor unit chassis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642001.4A CN110631182B (en) | 2018-06-21 | 2018-06-21 | Deicing control method for air conditioner outdoor unit chassis |
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| Publication Number | Publication Date |
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| CN110631182A true CN110631182A (en) | 2019-12-31 |
| CN110631182B CN110631182B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810642001.4A Active CN110631182B (en) | 2018-06-21 | 2018-06-21 | Deicing control method for air conditioner outdoor unit chassis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780374A (en) * | 2020-07-16 | 2020-10-16 | 海信（山东）空调有限公司 | Method and device for preventing water outlet of air conditioner from being blocked, storage medium and air conditioner |
| CN112984710A (en) * | 2021-02-01 | 2021-06-18 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003185307A (en) * | 2001-12-20 | 2003-07-03 | Fujitsu General Ltd | Control apparatus of air conditioner |
| CN1532483A (en) * | 2003-03-18 | 2004-09-29 | 维 储 | Defrosting device of air heat exchanger |
| CN104833060A (en) * | 2015-05-22 | 2015-08-12 | 广东美的暖通设备有限公司 | Defrosting control method and device for air conditioner |
| CN105402855A (en) * | 2015-12-08 | 2016-03-16 | 芜湖美智空调设备有限公司 | Air conditioner control method and air conditioner |
| JP2017040423A (en) * | 2015-08-19 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
-
2018
- 2018-06-21 CN CN201810642001.4A patent/CN110631182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003185307A (en) * | 2001-12-20 | 2003-07-03 | Fujitsu General Ltd | Control apparatus of air conditioner |
| CN1532483A (en) * | 2003-03-18 | 2004-09-29 | 维 储 | Defrosting device of air heat exchanger |
| CN104833060A (en) * | 2015-05-22 | 2015-08-12 | 广东美的暖通设备有限公司 | Defrosting control method and device for air conditioner |
| JP2017040423A (en) * | 2015-08-19 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN105402855A (en) * | 2015-12-08 | 2016-03-16 | 芜湖美智空调设备有限公司 | Air conditioner control method and air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780374A (en) * | 2020-07-16 | 2020-10-16 | 海信（山东）空调有限公司 | Method and device for preventing water outlet of air conditioner from being blocked, storage medium and air conditioner |
| CN111780374B (en) * | 2020-07-16 | 2021-12-14 | 海信（山东）空调有限公司 | Method and device for preventing water outlet of air conditioner from being blocked, storage medium and air conditioner |
| CN112984710A (en) * | 2021-02-01 | 2021-06-18 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
| CN112984710B (en) * | 2021-02-01 | 2022-07-19 | 青岛海尔空调器有限总公司 | Control method and device for preventing condensation of air conditioner and air conditioner |
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| CN110631182B (en) | 2021-10-29 |
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Effective date of registration: 20210913 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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