CN110567121B - Cold air prevention control method and device, storage medium and air conditioning unit - Google Patents

Cold air prevention control method and device, storage medium and air conditioning unit Download PDF

Info

Publication number
CN110567121B
CN110567121B CN201910872082.1A CN201910872082A CN110567121B CN 110567121 B CN110567121 B CN 110567121B CN 201910872082 A CN201910872082 A CN 201910872082A CN 110567121 B CN110567121 B CN 110567121B
Authority
CN
China
Prior art keywords
temperature
conditioning unit
air conditioning
prevention
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910872082.1A
Other languages
Chinese (zh)
Other versions
CN110567121A (en
Inventor
包善棠
黄炳南
王帆
郭敏志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201910872082.1A priority Critical patent/CN110567121B/en
Publication of CN110567121A publication Critical patent/CN110567121A/en
Application granted granted Critical
Publication of CN110567121B publication Critical patent/CN110567121B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • 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
    • 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)
  • 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 discloses a cold air prevention control method, a cold air prevention control device, a storage medium and an air conditioning unit, wherein the method comprises the following steps: under the condition that an anti-cold air mode of the air conditioning unit is started, acquiring the current pipeline temperature of the surface cooler; determining whether the current pipeline temperature is lower than a set cold air prevention entering temperature or whether the current pipeline temperature is higher than or equal to the set cold air prevention exiting temperature; if the current pipeline temperature is lower than the cold air entering prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened, controlling a tail end fan of the air conditioning unit to stop; and if the current pipeline temperature is higher than or equal to the cold air exit prevention temperature and the water valve of the hot water coil of the air conditioning unit is opened, controlling the tail end fan of the air conditioning unit to start and restore to operate according to the set operation logic. According to the scheme provided by the invention, the problem that the requirement of a user on the comfort level of the air conditioner cannot be met in the aspect of cold air prevention treatment when the air conditioner is started to heat in cold weather can be solved, and the effect of meeting the requirement of the comfort level of the user is achieved.

Description

Cold air prevention control method and device, storage medium and air conditioning unit
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a cold air prevention control method and device, a storage medium and an air conditioning unit, in particular to a cold air prevention control method and device for an air conditioner tail end, a storage medium and an air conditioning unit.
Background
In the case of turning on the air conditioner for heating in cold weather, the air conditioner terminal is usually suitable for a plurality of rooms, so even if the external unit is turned on, the room temperature is still too low at the air conditioner terminal for a certain room, especially at the room terminal which is not turned on all the time, and if the terminal (such as a fan) is turned on at the moment, cold air is blown out at the moment, so that people feel cooler; but if not, no heat is transferred.
At the end of an air conditioner in the current market, a fan at the end is not opened to prevent cold wind, or the air conditioner is opened and then blown to a person by cold wind, and the two modes can not meet the requirement of a user on the comfort level of the air conditioner.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention aims to provide a cold-proof air control method, a cold-proof air control device, a storage medium and an air conditioning unit, aiming at overcoming the defect that the requirement of a user on the comfort level of the air conditioner cannot be met in the cold-proof air treatment aspect when the air conditioner is started to heat in cold weather, and achieving the effect of meeting the requirement of the comfort level of the user.
The invention provides a cold air prevention control method, which comprises the following steps: under the condition that an anti-cold air mode of the air conditioning unit is started, acquiring the current pipeline temperature of an air cooler in the air conditioning unit; determining whether the current pipeline temperature is lower than a set cold air prevention entering temperature or whether the current pipeline temperature is higher than or equal to a set cold air prevention exiting temperature; if the current pipeline temperature is lower than the cold air inlet prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened, controlling a tail end fan of the air conditioning unit to stop; and if the current pipeline temperature is higher than or equal to the cold air exit prevention temperature and the water valve of the hot water coil of the air conditioning unit is opened, controlling the tail end fan of the air conditioning unit to start and restore to operate according to the set operation logic.
Optionally, obtaining a current pipe temperature of a surface cooler in the air conditioning unit includes: acquiring the pipeline temperature of the surface cooler detected by a temperature detection module for a first set time, and taking the pipeline temperature of the surface cooler as the current pipeline temperature of the surface cooler; wherein, the temperature detection module includes: a temperature sensing bulb; and the temperature sensing bulb is arranged on a pipeline of the surface cooler.
Optionally, obtaining a current pipe temperature of a surface cooler in the air conditioning unit further includes: if the temperature sensing bulb has no detection value output or the jump amplitude of the detection value output by the temperature sensing bulb exceeds a preset amplitude, taking the set pipeline temperature as the current pipeline temperature of the surface cooler; wherein the set pipe temperature is greater than the cold air exit prevention temperature.
Optionally, the condition that the cold air prevention mode of the air conditioning unit is turned on includes: the method comprises the following steps that (1) the cold air prevention mode is started when the air conditioning unit is started in a heating mode, and/or the cold air prevention mode is started in the heating running process of the air conditioning unit; and/or the cold air exit temperature is higher than the cold air entrance temperature.
Optionally, the method further comprises: after controlling a tail end fan of the air conditioning unit to stop for a second set time, obtaining the current pipeline temperature of the surface cooler in the air conditioning unit again; determining whether the re-acquired current pipeline temperature is lower than a set cold air entering prevention temperature; and if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature, controlling a tail end fan of the air conditioning unit to restart and operate according to a set low wind gear.
Optionally, the method further comprises: after controlling a tail end fan of the air conditioning unit to start and restore to operate for a third set time length according to set operation logic, acquiring the current pipeline temperature of a surface cooler in the air conditioning unit again, and acquiring the current environment temperature of the environment to which the air conditioning unit belongs; determining whether the obtained current pipeline temperature is lower than a set cold air entering prevention temperature or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit; and if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature, controlling a tail end fan of the air conditioning unit to stop.
In accordance with the above method, another aspect of the present invention provides a cold wind prevention control apparatus, including: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the current pipeline temperature of a surface cooler in the air conditioning unit under the condition that the cold air prevention mode of the air conditioning unit is started; the control unit is used for determining whether the current pipeline temperature is lower than a set cold air prevention entering temperature or whether the current pipeline temperature is higher than or equal to a set cold air prevention exiting temperature; the control unit is further used for controlling a tail end fan of the air conditioning unit to stop if the current pipeline temperature is lower than the cold air inlet prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened; and the control unit is also used for controlling the tail end fan of the air conditioning unit to start and restore to the operation according to the set operation logic if the current pipeline temperature is higher than or equal to the cold air exit prevention temperature and the water valve of the hot water coil of the air conditioning unit is opened.
Optionally, the obtaining unit obtains a current pipe temperature of a surface cooler in the air conditioning unit, and includes: acquiring the pipeline temperature of the surface cooler detected by a temperature detection module for a first set time, and taking the pipeline temperature of the surface cooler as the current pipeline temperature of the surface cooler; wherein, the temperature detection module includes: a temperature sensing bulb; and the temperature sensing bulb is arranged on a pipeline of the surface cooler.
Optionally, the obtaining unit obtains a current pipe temperature of a surface cooler in the air conditioning unit, and further includes: if the temperature sensing bulb has no detection value output or the jump amplitude of the detection value output by the temperature sensing bulb exceeds a preset amplitude, taking the set pipeline temperature as the current pipeline temperature of the surface cooler; wherein the set pipe temperature is greater than the cold air exit prevention temperature.
Optionally, the condition that the cold air prevention mode of the air conditioning unit is turned on includes: the method comprises the following steps that (1) the cold air prevention mode is started when the air conditioning unit is started in a heating mode, and/or the cold air prevention mode is started in the heating running process of the air conditioning unit; and/or the cold air exit temperature is higher than the cold air entrance temperature.
Optionally, the method further comprises: the control unit is further used for obtaining the current pipeline temperature of the surface cooler in the air conditioning unit again after controlling the tail end fan of the air conditioning unit to stop for a second set time; the control unit is also used for determining whether the re-acquired current pipeline temperature is lower than the set cold air entering prevention temperature; and the control unit is also used for controlling the tail end fan of the air conditioning unit to restart and operate according to a set low wind gear if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature.
Optionally, the method further comprises: the control unit is further used for acquiring the current pipeline temperature of the surface air cooler in the air conditioning unit again after controlling the tail end fan of the air conditioning unit to be started and to be restored to operate according to the set operation logic for a third set time period, and acquiring the current environment temperature of the environment to which the air conditioning unit belongs; the control unit is further used for determining whether the re-acquired current pipeline temperature is lower than a set cold air entering prevention temperature or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit; and the control unit is also used for controlling the tail end fan of the air conditioning unit to stop if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature.
In accordance with another aspect of the present invention, there is provided an air conditioning unit, comprising: the above described cold air prevention control device.
In accordance with the above method, a further aspect of the present invention provides a storage medium comprising: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the cold wind prevention control method by the processor.
In accordance with the above method, another aspect of the present invention provides an air conditioning unit, comprising: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored by the memory and loaded by the processor to execute the above-mentioned cold wind prevention control method.
According to the scheme, the starting and stopping of the tail end fan are judged according to the temperature of the tail end cold pipe, the problem that the tail end blows cold air when the temperature is too low under the condition that the tail end is heated and started can be solved, and the comfort level and the rationality of the air conditioner are improved.
Furthermore, according to the scheme of the invention, the start and stop of the tail end fan are judged according to the temperature of the tail end cold pipe, so that the problem that the tail end is always in cold-proof air when the temperature sensing bulb is in fault or failure can be solved, the working adaptability stability of the unit is improved, and the user experience is improved.
Furthermore, according to the scheme of the invention, the starting and stopping of the tail end fan are judged according to the temperature of the tail end cold pipe, the problem of fault stopping or mistaken entering cold-wind-prevention stopping caused by the fault of the temperature sensing bulb can be solved, and the comfortable experience of a user is improved.
Furthermore, according to the scheme of the invention, the starting and stopping of the tail end fan are judged according to the temperature of the tail end cold pipe, so that the problem that the requirement of a user on the comfort level of the air conditioner cannot be met in the cold air prevention treatment aspect when the air conditioner is started to heat in cold weather can be solved, the reliability of cold air prevention control is improved, and the requirement on the comfort level of the user is met.
Furthermore, according to the scheme of the invention, the starting and stopping of the tail end fan are judged according to the temperature of the tail end cold pipe, so that the comfort level of the air conditioner can be improved, the working adaptability stability of the unit is improved, and the user experience is better.
Therefore, according to the scheme provided by the invention, whether the fan at the tail end of the air conditioner needs to be started or stopped is judged according to the temperature of the cold pipe at the tail end of the air conditioner, the control on the starting and stopping of the fan at the tail end is realized, the problem that the requirement of a user on the comfort level of the air conditioner cannot be met in the cold air prevention treatment aspect when the air conditioner is started for heating in cold weather is solved, and the effect of meeting the requirement on the comfort level of the user is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic flow chart illustrating an embodiment of a method for controlling cold-proof wind according to the present invention;
fig. 2 is a schematic flow chart of an embodiment of a control process after a terminal fan of the air conditioning unit is controlled to stop in the method of the present invention;
fig. 3 is a schematic flow chart of an embodiment of a control process after controlling a terminal fan of the air conditioning unit to start and return to operate according to a set operation logic in the method of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a cold-proof air control device of the present invention;
fig. 5 is a schematic view of a cold air prevention control process of the air conditioning unit according to the present invention.
The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:
102-an obtaining unit; 104-control unit.
Detailed Description
In order to make the objects, 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 specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, a method for controlling cold wind prevention is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The cold wind prevention control method may include: step S110 to step S140.
At step S110, in a case where the cold air prevention mode of the air conditioning unit is turned on, a current duct temperature of the surface cooler in the air conditioning unit is acquired.
Wherein, the condition that air conditioning unit's anti-cold wind mode was opened can include: the method comprises the following steps of starting a cold air prevention mode when the air conditioning unit is started in a heating mode, and/or starting the cold air prevention mode in a heating operation process of the air conditioning unit. The condition that the cold air prevention mode of the air conditioning unit is started, namely the condition that the air conditioning unit has the cold air prevention requirement. Wherein, air conditioning unit has the condition of anti-cold wind demand, can include: the condition of heating starting of the air conditioning unit and/or the condition of heating operation of the air conditioning unit.
Therefore, the cold air prevention control under various conditions can be flexibly selected, so that the cold air prevention control of users with different cold air prevention requirements is met, and the humanization is good.
Optionally, the obtaining of the current pipe temperature of the surface cooler in the air conditioning unit in step S110 may include: the method comprises the steps of obtaining the pipeline temperature of the surface air cooler detected by the temperature detection module for the first set time, and taking the pipeline temperature of the surface air cooler as the current pipeline temperature of the surface air cooler.
Wherein, the temperature detection module may include: a thermal bulb. And the temperature sensing bulb is arranged on a pipeline of the surface cooler.
For example: the pipe temperature of the surface cooler may be checked using a temperature sensor. The temperature sensor is arranged on the pipeline of the surface cooler, and the air of the air conditioner is blown out from the pipeline of the surface cooler.
From this, through the pipeline temperature who is continuously detected the surface cooler by the thermal bulb in first setting duration, the detection mode is simple and convenient, and the testing result is accurate.
Further optionally, the obtaining of the current pipe temperature of the surface cooler in the air conditioning unit in step S110 may further include: and if the temperature sensing bulb has no detection value output or the jump amplitude of the detection value output by the temperature sensing bulb exceeds a preset amplitude, taking the set pipeline temperature as the current pipeline temperature of the surface cooler. Wherein the set pipe temperature is greater than the cold air exit prevention temperature.
For example: if the pipeline temperature sensing bulb of the surface cooler breaks down, the fan cannot break down and stop, and the fan cannot enter the cold air prevention protection to stop; if the temperature of the pipeline temperature sensing bulb of the surface cooler jumps greatly without stopping, the temperature sensing bulb is considered to be invalid. Aiming at the two conditions, the pipeline temperature sensing bulb of the surface cooler is automatically replaced by a certain temperature value which is larger than TPipe withdrawingTherefore, the fan stop caused by the cold air is avoided from being mistakenly entered.
From this, through regard as current pipeline temperature with setting for the pipeline temperature and realize preventing cold wind control under the condition of thermal bulb trouble or inefficacy, can avoid frequently preventing the extravagant energy of cold wind protection, also can promote user's comfort level and experience.
At step S120, it is determined whether the current duct temperature is lower than a set cold wind prevention entrance temperature or whether the current duct temperature is higher than or equal to a set cold wind prevention exit temperature.
And the cold air exit prevention temperature is greater than the cold air entrance prevention temperature.
For example: the pipe temperature of the surface cooler, i.e. the surface temperature of the hot water coil, is assumed to be TPipeThe entering temperature of cold air is TPipe feedingThe exit temperature of the cold-proof wind is TPipe withdrawing. And TPipe withdrawing＞TPipe feedingWith a 2-3 degree maintenance interval (e.g. T) in the middlePipe withdrawing＝38℃，TPipe feeding35 ℃) prevents the pipeline temperature fluctuation of the surface cooler from causing frequent start-up and shutdown.
Therefore, the cold air prevention control stability can be ensured by enabling the cold air prevention exit temperature to be larger than the cold air prevention entrance temperature.
At step S130, if the current pipeline temperature is lower than the cold wind entering prevention temperature and the water valve of the hot water coil in the air conditioning unit is opened, controlling the tail end fan of the air conditioning unit to stop, so as to realize cold wind prevention protection by stopping the tail end fan; otherwise, if the current pipeline temperature is higher than or equal to the cold air entering prevention temperature, the air conditioning unit is controlled to be normally started according to a set starting logic under the condition that the air conditioning unit is heated and started, or the air conditioning unit is controlled to be normally operated according to a set operation logic under the condition that the air conditioning unit is heated and operated. For example: and detecting the pipeline temperature of the surface cooler, and if the pipeline temperature of the surface cooler is lower than the cold air prevention entering temperature, executing cold air prevention to protect the fan to stop. Such as: in the heating starting mode, when the surface temperature T of the hot water coil is detected for 5 secondsPipe<TPipe feedingAnd when the water valve is in an open state, the fan is stopped.
In step S140, if the current pipe temperature is higher than or equal to the cold air exit temperature and the water valve of the hot water coil of the air conditioning unit is openedAnd controlling the tail end fan of the air conditioning unit to start and restore to operate according to the set operation logic. For example: and detecting the temperature of the pipeline of the surface cooler, and if the temperature of the pipeline of the surface cooler is higher than or equal to the exit temperature of cold-proof wind, starting the fan and recovering normal logic control. Such as: in the heating starting mode, the surface cooler temperature sensing bulb continuously detects T for 5 secondsPipe≥TPipe withdrawingAnd when the water valve is in an open state, the fan operates for 60 seconds at a set wind speed regardless of the detection value of the ambient temperature.
For example: aiming at the problem that the requirement of a user on the comfort level of an air conditioner cannot be met in the aspect of cold air prevention treatment when the air conditioner is started for heating in cold weather, the scheme of the invention provides a cold air prevention control scheme for the tail end of the air conditioner, which can solve the problem that the tail end still blows cold air when the temperature is too low under the condition that the tail end is heated and started, and the problem that the tail end is always in cold air prevention when a temperature sensing bag is in fault or fails; thereby, the comfort level and the rationality of the air conditioner are improved; the stability of the working adaptability of the unit is improved, and the image of the unit and the brand is improved. Such as: the start and stop of the tail end fan can be judged according to the temperature of the tail end cold pipe, and the problem of fault stop or mistaken entering cold-proof stop caused by the fault of the temperature sensing bulb can be solved.
From this, through the condition that the anti-cold wind mode at air conditioning unit was opened, according to the current pipeline temperature of surface cooler confirm the shut down or the start-up of terminal fan for prevent that cold wind control is effective and not excessive, can guarantee to prevent cold wind protection effect, and then satisfied user's comfort level demand.
In an alternative embodiment, after step S130, the method may further include: and controlling the control process of the tail end fan of the air conditioning unit after the stop.
The following further describes, with reference to a schematic flow chart of an embodiment of a control process after the stop of the end fan of the air conditioning unit in the method of the present invention shown in fig. 2, a specific process of the control process after the stop of the end fan of the air conditioning unit, which may include: step S210 to step S230.
And step S210, after the tail end fan of the air conditioning unit is controlled to stop for a second set time, the current pipeline temperature of the surface cooler in the air conditioning unit is obtained again.
And step S220, determining whether the obtained current pipeline temperature is lower than the set cold air preventing entering temperature.
Step S230, if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature, controlling a tail end fan of the air conditioning unit to restart and operate according to a set low wind gear so as to ensure the heating operation of the air conditioning unit; otherwise, the previous state is continued. And then may cycle through.
For example: and (4) stopping the fan under the cold air prevention protection, and forcibly operating the surface cooler according to a low wind shield if the temperature of the pipeline of the surface cooler is still lower than the cold air prevention entering temperature after 3min so as to ensure that the heating function is still required to be started. Such as: the fan is put into operation for 60 seconds according to the set wind speed, and the environmental temperature T is detected after 60 secondsRing (C)And hot water coil surface temperature TPipeAnd then judging the state of the running fan according to the two temperatures.
Therefore, the heating operation can be ensured by controlling the further control based on the current pipeline temperature after the tail end fan of the air conditioning unit is stopped, and the heating requirement of a user can be favorably improved.
In an alternative embodiment, after step S140, the method may further include: and controlling the tail end fan of the air conditioning unit to start and restore to the control process after the tail end fan operates according to the set operation logic.
With reference to the flowchart of fig. 3 showing an embodiment of a control process after the end fan of the air conditioning unit is controlled to start and return to operate according to the set operation logic in the method of the present invention, a specific process of controlling the end fan of the air conditioning unit to start and return to operate according to the set operation logic will be further described, and may include: step S310 to step S330.
Step S310, after controlling the tail end fan of the air conditioning unit to start and return to the running time of the third set time according to the set running logic, obtaining the current pipeline temperature of the surface cooler in the air conditioning unit again, and obtaining the current environment temperature of the environment to which the air conditioning unit belongs.
And step S320, determining whether the obtained current pipeline temperature is lower than a set cold air preventing entering temperature or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit.
Step S330, if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature, controlling a tail end fan of the air conditioning unit to stop; otherwise, the previous state is continued. And then may cycle through.
For example: if the cold-proof air enters and meets the exit condition, T is carried out at the momentPipe≥TPipe withdrawingWill start the fan so once T is detectedPipe≥TPipe withdrawingThe blower is started for 60 seconds, and the temperature is not detected within 60 seconds, so that the blower is started first. The surface temperature of the tube and the ambient temperature were judged after 60 seconds. If after 60s, the environment temperature is high enough to meet the shutdown or the coil surface temperature TPipeThe cold wind is prevented if the temperature is too low, and the fan is stopped.
Therefore, the tail end fan of the air conditioning unit is controlled to be started and restored to be further controlled based on the current pipeline temperature after running according to the set running logic, the tail end fan can be controlled to be stopped in time, and the energy waste is avoided due to the user requirement.
Through a large amount of experimental verifications, adopt the technical scheme of this embodiment, through judging terminal fan start-stop according to terminal cold pipe temperature, can solve when weather is colder and open the air conditioner and heat the problem that can't satisfy the user in the aspect of preventing cold wind and handle the demand of user to the air conditioner comfort level, promote the reliability of preventing cold wind control, satisfy user's comfort level demand.
According to an embodiment of the present invention, there is also provided a cold wind prevention control apparatus corresponding to the cold wind prevention control method. Referring to fig. 4, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The cold wind prevention control apparatus may include: an acquisition unit 102 and a control unit 104.
In an alternative example, the obtaining unit 102 may be configured to obtain a current duct temperature of an air cooler in the air conditioning unit when the cooling air prevention mode of the air conditioning unit is turned on. The specific functions and processes of the acquiring unit 102 are referred to in step S110.
Wherein, the condition that air conditioning unit's anti-cold wind mode was opened can include: the method comprises the following steps of starting a cold air prevention mode when the air conditioning unit is started in a heating mode, and/or starting the cold air prevention mode in a heating operation process of the air conditioning unit. The condition that the cold air prevention mode of the air conditioning unit is started, namely the condition that the air conditioning unit has the cold air prevention requirement. Wherein, air conditioning unit has the condition of anti-cold wind demand, can include: the condition of heating starting of the air conditioning unit and/or the condition of heating operation of the air conditioning unit.
Therefore, the cold air prevention control under various conditions can be flexibly selected, so that the cold air prevention control of users with different cold air prevention requirements is met, and the humanization is good.
Optionally, the obtaining unit 102 obtains the current pipe temperature of the surface cooler in the air conditioning unit, and may include:
the obtaining unit 102 may be further specifically configured to obtain a pipe temperature of the surface air cooler detected by the temperature detecting module for a first set time period, and use the pipe temperature of the surface air cooler as the current pipe temperature of the surface air cooler.
Wherein, the temperature detection module may include: a thermal bulb. And the temperature sensing bulb is arranged on a pipeline of the surface cooler.
For example: the pipe temperature of the surface cooler may be checked using a temperature sensor. The temperature sensor is arranged on the pipeline of the surface cooler, and the air of the air conditioner is blown out from the pipeline of the surface cooler.
From this, through the pipeline temperature who is continuously detected the surface cooler by the thermal bulb in first setting duration, the detection mode is simple and convenient, and the testing result is accurate.
Further optionally, the obtaining unit 102 obtains a current pipe temperature of an air cooler in the air conditioning unit, and may further include: the obtaining unit 102 may be further specifically configured to use the set pipe temperature as the current pipe temperature of the surface air cooler if the thermal bulb has no detection value output, or if a jump amplitude of the detection value output by the thermal bulb exceeds a preset amplitude. Wherein the set pipe temperature is greater than the cold air exit prevention temperature.
For example: if the pipeline temperature sensing bulb of the surface cooler breaks down, the fan cannot break down and stop, and the fan cannot enter the cold air prevention protection to stop; if the temperature of the pipeline temperature sensing bulb of the surface cooler jumps greatly without stopping, the temperature sensing bulb is considered to be invalid. Aiming at the two conditions, the pipeline temperature sensing bulb of the surface cooler is automatically replaced by a certain temperature value which is larger than TPipe withdrawingTherefore, the fan stop caused by the cold air is avoided from being mistakenly entered.
From this, through regard as current pipeline temperature with setting for the pipeline temperature and realize preventing cold wind control under the condition of thermal bulb trouble or inefficacy, can avoid frequently preventing the extravagant energy of cold wind protection, also can promote user's comfort level and experience.
In an alternative example, the control unit 104 may be configured to determine whether the current duct temperature is lower than a set cold wind prevention entrance temperature or whether the current duct temperature is higher than or equal to a set cold wind prevention exit temperature. The specific function and processing of the control unit 104 are also referred to in step S120.
And the cold air exit prevention temperature is greater than the cold air entrance prevention temperature.
For example: the pipe temperature of the surface cooler, i.e. the surface temperature of the hot water coil, is assumed to be TPipeThe entering temperature of cold air is TPipe feedingThe exit temperature of the cold-proof wind is TPipe withdrawing. And TPipe withdrawing＞TPipe feedingWith a 2-3 degree maintenance interval (e.g. T) in the middlePipe withdrawing＝38℃，TPipe feeding35 ℃) prevents the pipeline temperature fluctuation of the surface cooler from causing frequent start-up and shutdown.
Therefore, the cold air prevention control stability can be ensured by enabling the cold air prevention exit temperature to be larger than the cold air prevention entrance temperature.
In an optional example, the control unit 104 may be further configured to open a water valve of a hot water coil of the air conditioning unit if the current pipe temperature is lower than the cold wind inlet prevention temperatureUnder the condition, the tail end fan of the air conditioning unit is controlled to stop, so that cold air prevention protection is realized by stopping the tail end fan; otherwise, if the current pipeline temperature is higher than or equal to the cold air entering prevention temperature, the air conditioning unit is controlled to be normally started according to a set starting logic under the condition that the air conditioning unit is heated and started, or the air conditioning unit is controlled to be normally operated according to a set operation logic under the condition that the air conditioning unit is heated and operated. The specific function and processing of the control unit 104 are also referred to in step S130. For example: and detecting the pipeline temperature of the surface cooler, and if the pipeline temperature of the surface cooler is lower than the cold air prevention entering temperature, executing cold air prevention to protect the fan to stop. Such as: in the heating starting mode, when the surface temperature T of the hot water coil is detected for 5 secondsPipe<TPipe feedingAnd when the water valve is in an open state, the fan is stopped.
In an optional example, the control unit 104 may be further configured to control a tail end fan of the air conditioning unit to start and return to operate according to a set operation logic if the current pipe temperature is higher than or equal to the cold air exit prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened. The specific function and processing of the control unit 104 are also referred to in step S140. For example: and detecting the temperature of the pipeline of the surface cooler, and if the temperature of the pipeline of the surface cooler is higher than or equal to the exit temperature of cold-proof wind, starting the fan and recovering normal logic control. Such as: in the heating starting mode, the surface cooler temperature sensing bulb continuously detects T for 5 secondsPipe≥TPipe withdrawingAnd when the water valve is in an open state, the fan operates for 60 seconds at a set wind speed regardless of the detection value of the ambient temperature.
For example: aiming at the problem that the requirement of a user on the comfort level of an air conditioner cannot be met in the aspect of cold air prevention treatment when the air conditioner is started for heating in cold weather, the scheme of the invention provides a cold air prevention control scheme for the tail end of the air conditioner, which can solve the problem that the tail end still blows cold air when the temperature is too low under the condition that the tail end is heated and started, and the problem that the tail end is always in cold air prevention when a temperature sensing bag is in fault or fails; thereby, the comfort level and the rationality of the air conditioner are improved; the stability of the working adaptability of the unit is improved, and the image of the unit and the brand is improved. Such as: the start and stop of the tail end fan can be judged according to the temperature of the tail end cold pipe, and the problem of fault stop or mistaken entering cold-proof stop caused by the fault of the temperature sensing bulb can be solved.
From this, through the condition that the anti-cold wind mode at air conditioning unit was opened, according to the current pipeline temperature of surface cooler confirm the shut down or the start-up of terminal fan for prevent that cold wind control is effective and not excessive, can guarantee to prevent cold wind protection effect, and then satisfied user's comfort level demand.
The method also comprises the following steps: and controlling the control process of the tail end fan of the air conditioning unit after the stop.
The control unit 104 may further be configured to obtain the current pipe temperature of the surface cooler in the air conditioning unit again after controlling the tail end fan of the air conditioning unit to stop for a second set time. The specific functions and processes of the control unit 104 are also referred to in step S210.
The control unit 104 may be further configured to determine whether the re-acquired current duct temperature is lower than a set cold wind entry prevention temperature. The specific functions and processes of the control unit 104 are also referred to in step S220.
The control unit 104 may be further configured to, if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature, control the tail end fan of the air conditioning unit to restart and operate according to a set low wind level, so as to ensure heating operation of the air conditioning unit; otherwise, the previous state is continued. And then may cycle through. The specific function and processing of the control unit 104 are also referred to in step S230.
For example: and (4) stopping the fan under the cold air prevention protection, and forcibly operating the surface cooler according to a low wind shield if the temperature of the pipeline of the surface cooler is still lower than the cold air prevention entering temperature after 3min so as to ensure that the heating function is still required to be started. Such as: the fan is put into operation for 60 seconds according to the set wind speed, and the environmental temperature T is detected after 60 secondsRing (C)And hot water coil surface temperature TPipeAnd then judging the state of the running fan according to the two temperatures.
Therefore, the heating operation can be ensured by controlling the further control based on the current pipeline temperature after the tail end fan of the air conditioning unit is stopped, and the heating requirement of a user can be favorably improved.
In an alternative embodiment, the method may further include: and controlling the tail end fan of the air conditioning unit to start and restore to the control process after the tail end fan operates according to the set operation logic.
The control unit 104 may be further configured to, after controlling the end fan of the air conditioning unit to start and return to operate according to the set operation logic for a third set time period, obtain the current pipe temperature of the surface cooler in the air conditioning unit again, and obtain the current environment temperature of the environment to which the air conditioning unit belongs. The specific functions and processes of the control unit 104 are also referred to in step S310.
The control unit 104 may be further configured to determine whether the obtained current duct temperature is lower than a set cold air entering prevention temperature, or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit. The specific functions and processes of the control unit 104 are also referred to in step S320.
The control unit 104 may be further configured to control a tail end fan of the air conditioning unit to stop if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature; otherwise, the previous state is continued. And then may cycle through. The specific functions and processes of the control unit 104 are also referred to in step S330.
For example: if the cold-proof air enters and meets the exit condition, T is carried out at the momentPipe≥TPipe withdrawingWill start the fan so once T is detectedPipe≥TPipe withdrawingThe blower is started for 60 seconds, and the temperature is not detected within 60 seconds, so that the blower is started first. The surface temperature of the tube and the ambient temperature were judged after 60 seconds. If after 60s, the environment temperature is high enough to meet the shutdown or the coil surface temperature TPipeThe cold wind is prevented if the temperature is too low, and the fan is stopped.
Therefore, the tail end fan of the air conditioning unit is controlled to be started and restored to be further controlled based on the current pipeline temperature after running according to the set running logic, the tail end fan can be controlled to be stopped in time, the user demand is guaranteed, and energy waste is avoided
Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method shown in fig. 1 to 3, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.
Through a large number of tests, the technical scheme of the invention judges the start and stop of the tail end fan according to the temperature of the tail end cold pipe, so that the problem that the tail end blows cold air when the temperature is too low under the condition of tail end heating and starting can be solved, and the comfort level and the rationality of the air conditioner are improved.
According to the embodiment of the invention, an air conditioning unit corresponding to the cold air prevention control device is also provided. The air conditioning unit may include: the above described cold air prevention control device.
In an optional embodiment, aiming at the problem that the requirement of a user on the comfort level of an air conditioner cannot be met in the aspect of cold air prevention treatment when the air conditioner is started to heat when the weather is cold, the scheme of the invention provides a cold air prevention control scheme for the tail end of the air conditioner, which can solve the problem that the tail end still blows cold air when the temperature is too low under the condition that the tail end is heated and started, and the problem that the tail end is always in cold air prevention when a temperature sensing bag is in fault or fails; thereby, the comfort level and the rationality of the air conditioner are improved; the stability of the working adaptability of the unit is improved, and the image of the unit and the brand is improved.
In an optional example, the scheme of the invention can judge the start and stop of the tail end fan according to the temperature of the tail end cold pipe, and can solve the problem of fault stop or mistaken entering cold-proof stop caused by the fault of the temperature sensing bulb.
In an alternative example, referring to the example shown in fig. 5, the implementation process of the scheme of the present invention, that is, the control scheme for preventing the entry and exit of cold air during heating of the air conditioning unit, is illustrated.
In the scheme of the invention, the air conditioning unit has a cold air prevention requirement when the air conditioning unit is started (certainly, the air conditioning unit also has the cold air prevention requirement when the air conditioning unit is operated), the pipeline temperature of the surface air cooler is detected at this time, if the pipeline temperature of the surface air cooler is lower than the cold air prevention entering temperature, the cold air prevention protection fan is stopped, but if the pipeline temperature of the surface air cooler is still lower than the cold air prevention entering temperature after 3min, the air conditioning unit is forced to operate according to a low wind shield so as to ensure that the heating function is still started. If the temperature of the pipeline of the surface cooler is higher than or equal to the exit temperature of the cold-proof wind, the fan is started, and normal logic control is recovered.
The principle of the surface cooler is that a heating medium or a cooling medium or a refrigerating medium flows through the inner cavity of a metal pipeline, and air to be treated flows through the outer wall of the metal pipeline to carry out heat exchange so as to achieve the purpose of heating or cooling the air.
Here, the operation is also considered to be cold air proof. In theory, cold air prevention cannot be caused in the operation process, because the temperature of a pipeline is up after the heating is started for several minutes, the cold air prevention is certainly not met under the normal condition, but all the actual conditions can happen, some air conditioners do not normally operate to provide refrigeration for people, the environment for providing refrigeration for people is special, the temperature change is large, the temperature sensing bulb fails and the like, and therefore cold air prevention is required in the whole operation process for the sake of safety. Of course, the opening and closing of the anti-wind-cold function can also be set.
That is to say, under the normal condition, after heating and opening, the pipeline temperature of surface cooler just rose very fast, and the pipeline temperature of cold ware can not appear at all under the normal condition and is less than the entering temperature of preventing cold wind, carries out the condition of preventing cold wind protection.
Wherein, if the pipeline temperature of the surface cooler is lower than the cold air preventing temperature after 3min, the operation is forced to be carried out according to the low wind shield. The method is used under the condition that the normal condition does not occur, and the heating can not be always carried out under the special condition such as the failure of the bulb (the basic processing method is also called after the failure condition of the bulb), so that the forced operation is carried out, otherwise, the heating can not be carried out all the time; but the low gear is activated for minimum blowing of cold air. If the condition that the fan is quitted from the cold air prevention protection is met later, the fan operates normally and can operate according to a set gear.
Alternatively, the pipe temperature of the surface cooler may be checked using a temperature sensor. The temperature sensor is arranged on the pipeline of the surface cooler, and the air of the air conditioner is blown out from the pipeline of the surface cooler.
As shown in fig. 5, the method for controlling cold air prevention at an air conditioner terminal according to an aspect of the present invention may include:
first, assume that the pipe temperature of the surface cooler, i.e., the surface temperature of the hot water coil, is TPipeThe entering temperature of cold air is TPipe feedingThe exit temperature of the cold-proof wind is TPipe withdrawing. And TPipe withdrawing＞TPipe feedingWith a 2-3 degree maintenance interval (e.g. T) in the middlePipe withdrawing＝38℃，TPipe feeding35 ℃) prevents the pipeline temperature fluctuation of the surface cooler from causing frequent start-up and shutdown.
In the heating starting mode, when the surface temperature T of the hot water coil is detected for 5 secondsPipe<TPipe feedingAnd when the water valve is in an open state, the fan is stopped; the temperature sensing bulb of the surface cooler continuously detects T for 5 secondsPipe≥TPipe withdrawingWhen the water valve is in an open state, the detection value of the ambient temperature is ignored, the fan is put into operation for 60 seconds according to the set wind speed, and the ambient temperature T is detected after 60 secondsRing (C)And hot water coil surface temperature TPipeAnd then judging the state of the running fan according to the two temperatures.
Wherein, the water valve is opened to satisfy heating opening condition, the fan can not be opened at all when the heating condition is not satisfied, and the surface temperature T of the hot water coil does not need to be judgedPipe。
Optionally, if the exit condition is met after entering the cold-proof air, T is carried out at the momentPipe≥TPipe withdrawingWill start the fan so once T is detectedPipe≥TPipe withdrawingThe blower is started for 60 seconds, and the temperature is not detected within 60 seconds, so that the blower is started first. The surface temperature of the tube and the ambient temperature were judged after 60 seconds.
The environment temperature is used for judging whether the fan is started or stopped, for example, when the fan is started to heat, the set temperature is 28 ℃, the environment temperature is 30 ℃, and at the moment, the environment temperature is higher than the set temperature of 28 ℃, heating is not needed at all, and therefore the fan cannot be started. In fact, if a single outdoor unit in a home is an indoor unit, the compressor cannot be started; however, since many indoor units are arranged in one outdoor unit and each room is provided, the fan is stopped and the compressor is stopped.
Surface temperature T of coilPipeThe temperature control device is used for judging and detecting the temperature of the pipeline, detects that the temperature of the pipeline is lower than the protection temperature, indicates that the temperature of the pipeline is too cold, and can make the temperature cooler if blowing air comes at the moment, and does not start the fan at the moment.
If after 60s, the environment temperature is high enough to meet the shutdown or the coil surface temperature TPipeAnd if the cold air is too low, the fan is stopped, and if the cold air is not enough, the fan continues to operate. This is of course normally not possible because the temperature is now closer to the temperature desired by the user since the former is satisfied.
Namely, the fan stops for 3min during the cold air prevention period of the fan, and the fan is forced to run according to a low windshield even if the fan is still in a cold air prevention state after 3 min; if the cold air is required to be withdrawn, the fan is put into operation for 60 seconds according to the detection value of the ambient temperature, and the ambient temperature T is detected after 60 secondsRing (C)And hot water coil surface temperature TPipeAnd then judging the state of the running fan according to the two temperatures.
It should be noted that if the pipeline temperature sensing bulb of the surface cooler fails, the fan will not fail and stop, and will not enter the cold air prevention protection to stop; if the temperature of the pipeline temperature sensing bulb of the surface cooler jumps greatly without stopping, the temperature sensing bulb is considered to be invalid. Aiming at the two conditions, the pipeline temperature sensing bulb of the surface cooler is automatically replaced by a certain temperature value which is larger than TPipe withdrawingTherefore, the fan stop caused by the cold air is avoided from being mistakenly entered.
Since the processing and functions of the air conditioning unit of this embodiment are basically corresponding to the embodiment, principle and example of the device shown in fig. 4, the description of this embodiment is not given in detail, and reference may be made to the related description in the foregoing embodiment, which is not described herein again.
Through a large number of tests, the technical scheme provided by the invention can solve the problem that the tail end is always in cold-proof state when the temperature sensing bulb fails or loses efficacy by judging the start and stop of the tail end fan according to the temperature of the tail end cold pipe, so that the working adaptability stability of the unit is improved, and the user experience is improved.
According to an embodiment of the present invention, there is also provided a storage medium corresponding to the anti-cold wind control method. The storage medium may include: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the cold wind prevention control method by the processor.
Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the methods shown in fig. 1 to fig. 3, details are not described in the description of this embodiment, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention can solve the problem of fault shutdown or mistaken entering cold-wind-proof shutdown caused by the fault of the temperature sensing bulb by judging the startup and the shutdown of the tail end fan according to the temperature of the tail end cold pipe, thereby improving the comfort experience of users.
According to the embodiment of the invention, the air conditioning unit corresponding to the cold air prevention control method is also provided. The air conditioning unit can include: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; wherein the instructions are stored by the memory and loaded by the processor to execute the above-mentioned cold wind prevention control method.
Since the processing and functions of the air conditioning unit of this embodiment are basically corresponding to the embodiments, principles and examples of the methods shown in fig. 1 to fig. 3, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.
Through a large number of tests, the technical scheme provided by the invention can improve the comfort level of the air conditioner, improve the working adaptability stability of the unit and ensure better user experience by judging the start and stop of the tail end fan according to the temperature of the tail end cold pipe.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A cold wind prevention control method, comprising:
under the condition that an anti-cold air mode of the air conditioning unit is started, acquiring the current pipeline temperature of an air cooler in the air conditioning unit;
determining whether the current pipeline temperature is lower than a set cold air prevention entering temperature or whether the current pipeline temperature is higher than or equal to a set cold air prevention exiting temperature;
if the current pipeline temperature is lower than the cold air inlet prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened, controlling a tail end fan of the air conditioning unit to stop;
if the current pipeline temperature is higher than or equal to the cold air exit prevention temperature and the water valve of the hot water coil of the air conditioning unit is opened, controlling a tail end fan of the air conditioning unit to start and restore to operate according to set operation logic;
further comprising:
after controlling a tail end fan of the air conditioning unit to stop for a second set time, obtaining the current pipeline temperature of the surface cooler in the air conditioning unit again;
determining whether the re-acquired current pipeline temperature is lower than a set cold air entering prevention temperature;
if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature, controlling a tail end fan of the air conditioning unit to restart and operate according to a set low wind gear;
further comprising:
after controlling a tail end fan of the air conditioning unit to start and restore to operate for a third set time length according to set operation logic, acquiring the current pipeline temperature of a surface cooler in the air conditioning unit again, and acquiring the current environment temperature of the environment to which the air conditioning unit belongs;
determining whether the obtained current pipeline temperature is lower than a set cold air entering prevention temperature or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit;
and if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature, controlling a tail end fan of the air conditioning unit to stop.
2. The method of claim 1, wherein obtaining a current duct temperature of an air cooler in an air conditioning unit comprises:
acquiring the pipeline temperature of the surface cooler detected by a temperature detection module for a first set time, and taking the pipeline temperature of the surface cooler as the current pipeline temperature of the surface cooler;
wherein, the temperature detection module includes: a temperature sensing bulb; and the temperature sensing bulb is arranged on a pipeline of the surface cooler.
3. The method of claim 2, wherein obtaining a current duct temperature of an air cooler in an air conditioning unit further comprises:
if the temperature sensing bulb has no detection value output or the jump amplitude of the detection value output by the temperature sensing bulb exceeds a preset amplitude, taking the set pipeline temperature as the current pipeline temperature of the surface cooler; wherein the set pipe temperature is greater than the cold air exit prevention temperature.
4. The method of claim 1, wherein,
the condition that air conditioning unit's anti-cold wind mode was opened includes: the method comprises the following steps that (1) the cold air prevention mode is started when the air conditioning unit is started in a heating mode, and/or the cold air prevention mode is started in the heating running process of the air conditioning unit;
and/or the presence of a gas in the gas,
the cold air exit prevention temperature is greater than the cold air entry prevention temperature.
5. A cold-air-proof control device, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the current pipeline temperature of a surface cooler in the air conditioning unit under the condition that the cold air prevention mode of the air conditioning unit is started;
the control unit is used for determining whether the current pipeline temperature is lower than a set cold air prevention entering temperature or whether the current pipeline temperature is higher than or equal to a set cold air prevention exiting temperature;
the control unit is further used for controlling a tail end fan of the air conditioning unit to stop if the current pipeline temperature is lower than the cold air inlet prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened;
the control unit is further used for controlling a tail end fan of the air conditioning unit to be started and to be restored to operate according to a set operation logic if the current pipeline temperature is higher than or equal to the cold air exit prevention temperature and a water valve of a hot water coil of the air conditioning unit is opened;
further comprising:
the control unit is further used for obtaining the current pipeline temperature of the surface cooler in the air conditioning unit again after controlling the tail end fan of the air conditioning unit to stop for a second set time;
the control unit is also used for determining whether the re-acquired current pipeline temperature is lower than the set cold air entering prevention temperature;
the control unit is further used for controlling a tail end fan of the air conditioning unit to restart and operate according to a set low wind gear if the obtained current pipeline temperature is still lower than the cold air entering prevention temperature;
further comprising:
the control unit is further used for acquiring the current pipeline temperature of the surface air cooler in the air conditioning unit again after controlling the tail end fan of the air conditioning unit to be started and to be restored to operate according to the set operation logic for a third set time period, and acquiring the current environment temperature of the environment to which the air conditioning unit belongs;
the control unit is further used for determining whether the re-acquired current pipeline temperature is lower than a set cold air entering prevention temperature or whether the current environment temperature is higher than a target environment temperature of the air conditioning unit;
and the control unit is also used for controlling the tail end fan of the air conditioning unit to stop if the obtained current pipeline temperature is lower than the cold air entering prevention temperature or the current environment temperature is higher than the target environment temperature.
6. The apparatus of claim 5, wherein the obtaining unit obtains a current duct temperature of a surface cooler in the air conditioning unit, and comprises:
acquiring the pipeline temperature of the surface cooler detected by a temperature detection module for a first set time, and taking the pipeline temperature of the surface cooler as the current pipeline temperature of the surface cooler;
wherein, the temperature detection module includes: a temperature sensing bulb; and the temperature sensing bulb is arranged on a pipeline of the surface cooler.
7. The apparatus of claim 6, wherein the obtaining unit obtains a current duct temperature of an air cooler in the air conditioning unit, further comprising:
if the temperature sensing bulb has no detection value output or the jump amplitude of the detection value output by the temperature sensing bulb exceeds a preset amplitude, taking the set pipeline temperature as the current pipeline temperature of the surface cooler; wherein the set pipe temperature is greater than the cold air exit prevention temperature.
8. The apparatus of claim 5, wherein,
the condition that air conditioning unit's anti-cold wind mode was opened includes: the method comprises the following steps that (1) the cold air prevention mode is started when the air conditioning unit is started in a heating mode, and/or the cold air prevention mode is started in the heating running process of the air conditioning unit;
and/or the presence of a gas in the gas,
the cold air exit prevention temperature is greater than the cold air entry prevention temperature.
9. An air conditioning assembly, comprising: the cold-proof air control device as claimed in any one of claims 5 to 8;
alternatively, the first and second electrodes may be,
the method comprises the following steps:
a processor for executing a plurality of instructions;
a memory to store a plurality of instructions;
wherein the instructions are stored in the memory, and loaded by the processor to execute the anti-cold air control method according to any one of claims 1 to 4.
10. A storage medium having a plurality of instructions stored therein; the plurality of instructions for being loaded by a processor and executing the cold-proof air control method according to any one of claims 1 to 4.
CN201910872082.1A 2019-09-16 2019-09-16 Cold air prevention control method and device, storage medium and air conditioning unit Active CN110567121B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910872082.1A CN110567121B (en) 2019-09-16 2019-09-16 Cold air prevention control method and device, storage medium and air conditioning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910872082.1A CN110567121B (en) 2019-09-16 2019-09-16 Cold air prevention control method and device, storage medium and air conditioning unit

Publications (2)

Publication Number Publication Date
CN110567121A CN110567121A (en) 2019-12-13
CN110567121B true CN110567121B (en) 2020-07-28

Family

ID=68780180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910872082.1A Active CN110567121B (en) 2019-09-16 2019-09-16 Cold air prevention control method and device, storage medium and air conditioning unit

Country Status (1)

Country Link
CN (1) CN110567121B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113819608A (en) * 2021-06-21 2021-12-21 浙江中广电器股份有限公司 Indoor air disc cold air prevention control method for household water machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523840A (en) * 1978-08-04 1980-02-20 Nippon Denso Co Ltd Method and device for controlling heater
CN101592389A (en) * 2009-07-03 2009-12-02 广东美的电器股份有限公司 A kind of control method that improves outlet air temperature comfort of air conditioner
CN101788179A (en) * 2010-02-23 2010-07-28 广东格兰仕集团有限公司 Control method of variable frequency air conditioner
CN105650834A (en) * 2016-04-05 2016-06-08 珠海格力电器股份有限公司 Cold-air protection control method for air conditioning unit with double heat sources
CN106765952A (en) * 2016-12-23 2017-05-31 青岛海尔空调器有限总公司 A kind of air conditioning control method and system
CN107166625A (en) * 2017-03-15 2017-09-15 奥克斯空调股份有限公司 A kind of whole anti-cold wind control method of convertible frequency air-conditioner
CN109210686A (en) * 2018-09-20 2019-01-15 宁波奥克斯电气股份有限公司 A kind of control method and air conditioner of the anti-cold wind of air-conditioning
CN109506334A (en) * 2018-11-09 2019-03-22 珠海格力电器股份有限公司 A kind of anti-cold air control method, apparatus of air-conditioning and a kind of air-conditioning

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523840A (en) * 1978-08-04 1980-02-20 Nippon Denso Co Ltd Method and device for controlling heater
CN101592389A (en) * 2009-07-03 2009-12-02 广东美的电器股份有限公司 A kind of control method that improves outlet air temperature comfort of air conditioner
CN101788179A (en) * 2010-02-23 2010-07-28 广东格兰仕集团有限公司 Control method of variable frequency air conditioner
CN105650834A (en) * 2016-04-05 2016-06-08 珠海格力电器股份有限公司 Cold-air protection control method for air conditioning unit with double heat sources
CN106765952A (en) * 2016-12-23 2017-05-31 青岛海尔空调器有限总公司 A kind of air conditioning control method and system
CN107166625A (en) * 2017-03-15 2017-09-15 奥克斯空调股份有限公司 A kind of whole anti-cold wind control method of convertible frequency air-conditioner
CN109210686A (en) * 2018-09-20 2019-01-15 宁波奥克斯电气股份有限公司 A kind of control method and air conditioner of the anti-cold wind of air-conditioning
CN109506334A (en) * 2018-11-09 2019-03-22 珠海格力电器股份有限公司 A kind of anti-cold air control method, apparatus of air-conditioning and a kind of air-conditioning

Also Published As

Publication number Publication date
CN110567121A (en) 2019-12-13

Similar Documents

Publication Publication Date Title
CN103557596B (en) A kind of control method of warm-air drier
CN110513819B (en) Air conditioner control method, air conditioner and storage medium
CN109373540B (en) Air conditioner control method and system and air conditioner
CN111197836A (en) Intelligent detection method for air conditioner sensor falling and air conditioner
CN109990439A (en) A kind of control method, control device and air conditioner that the commutation of air-conditioning four-way valve is abnormal
CN114294719B (en) Control method and device of air conditioner, air conditioner and storage medium
CN113007857B (en) Operation control method and device for electric heater of air conditioner, air conditioner and computer readable storage medium
CN109631388A (en) A kind of air-conditioning heating four-way valve commutation exception control method, apparatus and air conditioner
CN111059691B (en) Control method and device of air source heat pump air conditioner, storage medium and air conditioner
CN109798703B (en) Heat pump unit and defrosting control method and device thereof
CN110567121B (en) Cold air prevention control method and device, storage medium and air conditioning unit
CN114183931A (en) Control method and control device of heater
CN114754460A (en) Control method and device of air conditioner, air conditioner and storage medium
CN113883657B (en) Air conditioner external coil temperature sensor falling control method and air conditioner
CN112880120B (en) Air conditioner refrigeration cold-wind-proof control method and device, storage medium and air conditioner
CN109237734A (en) A kind of air conditioner outdoor unit chassis method for heating and controlling
CN114777284A (en) Refrigerant-shortage protection method and device for air conditioner, storage medium and air conditioner
CN111219858B (en) Multistage electric auxiliary heating water multi-connected air conditioner cold air prevention control method and system and air conditioner
JP6523146B2 (en) Bathroom heater
CN108317688A (en) Control method and control device, storage medium and mobile air-conditioner
CN111156647B (en) Air conditioner cold air prevention control method, computer readable storage medium and air conditioner
CN115493251B (en) Air conditioner defrosting control method and device, air conditioner and storage medium
JP6853167B2 (en) Air conditioner
CN110836467B (en) Defrosting control method for fixed-frequency air conditioner
CN115972851A (en) Heating control method and device of air conditioner, storage medium and air conditioner

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant