CN112880159B - Control method of lower air outlet fresh air conditioner and lower air outlet fresh air conditioner - Google Patents
Control method of lower air outlet fresh air conditioner and lower air outlet fresh air conditioner Download PDFInfo
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- CN112880159B CN112880159B CN202110204721.4A CN202110204721A CN112880159B CN 112880159 B CN112880159 B CN 112880159B CN 202110204721 A CN202110204721 A CN 202110204721A CN 112880159 B CN112880159 B CN 112880159B
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to the technical field of air conditioners, and provides a control method of a lower air outlet fresh air conditioner and the lower air outlet fresh air conditioner, which comprise the following steps: selecting a warm air function and/or a fresh air function according to needs; if the fresh air function is selected, controlling the number of the fresh air heaters according to the temperature of the fresh air; if the warm air function is selected, acquiring the ratio of the actual near-earth temperature difference to the coil pipe temperature according to the set temperature of the room, the near-earth temperature and the coil pipe temperature; and controlling the corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the temperature of the coil. According to the control method of the lower air-out fresh air conditioner, the lower air-out and the fresh air of the air conditioner are controlled by detecting the temperature of the fresh air, the temperature of the near ground and the temperature of the coil pipe, so that the fresh air and warm air control module controls different numbers of fresh air heaters and warm air heaters to heat according to the temperature of the fresh air and the ratio of the actual temperature difference of the near ground to the temperature of the coil pipe, the indoor air quality is improved, and the problem of over-low temperature at the bottom of a room is solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of a lower air outlet fresh air conditioner and the lower air outlet fresh air conditioner.
Background
With the improvement of living standard of people, the air conditioner becomes a necessary electric appliance for modern people at home and in offices, and the air conditioner is used for a long time especially in summer and winter. The air conditioner can refrigerate in summer and heat in winter, can adjust the indoor temperature to be warm in winter and cool in summer, and provides a comfortable environment for users.
At present, most air conditioners have various modes such as refrigeration and heating, can automatically select refrigeration or heating according to outdoor environment temperature in the process of carrying out an automatic control mode, and can automatically set target temperature and fan rotating speed according to indoor and outdoor temperatures so as to achieve the aim of indoor constant temperature as far as possible. However, in the heating process of the existing air conditioner, the heating process is judged and controlled only by a temperature sensor on the air conditioner, and the indoor temperature is difficult to reach the set temperature. Especially, when heating in winter, the cabinet air conditioner is easy to cause the problem that the temperature at the bottom of a room is too low. In addition, the existing air conditioner is easy to influence the indoor air quality and cause discomfort of human body in the process of long-term operation heating.
Disclosure of Invention
The embodiment of the invention provides a control method of a lower air outlet fresh air conditioner and the lower air outlet fresh air conditioner, which solve the problem that the temperature of the bottom of a room is too low when a cabinet air conditioner heats in winter, and improve the air quality.
The embodiment of the invention provides a control method of a lower air outlet fresh air conditioner, which comprises the following steps:
selecting a warm air function and/or a fresh air function according to needs;
if the fresh air function is selected, the fresh air temperature sensor acquires the fresh air temperature, the number of the fresh air heaters is controlled according to the fresh air temperature, and the number of the fresh air heaters is inversely related to the fresh air temperature;
if the warm air function is selected, acquiring the ratio of the actual near-earth temperature difference to the coil pipe temperature according to the set temperature, the near-earth temperature and the coil pipe temperature of the room; controlling a corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the temperature of the coil pipe; the ratio of the near-earth temperature difference to the coil temperature is positively correlated with the number of the warm air heaters controlled by the warm air control module.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, the step of controlling the corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the coil temperature specifically comprises the following steps:
if the ratio of the actual ground temperature difference to the coil temperature is within a first preset temperature range, the warm air control module controls the warm air heater corresponding to the first preset temperature range to heat.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, if the ratio of the actual near-earth temperature difference to the temperature of the coil pipe is in a second preset temperature interval, the warm air control module controls the warm air heater corresponding to the second preset temperature interval to heat;
the upper limit threshold value of the second preset temperature interval is smaller than the lower limit threshold value of the first preset temperature interval, and the number of the warm air heaters corresponding to the second preset temperature interval is smaller than that of the warm air heaters corresponding to the first preset temperature interval.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, if the ratio of the actual near-earth temperature difference to the temperature of the coil pipe is within a third preset temperature range, the warm air control module controls the warm air heater corresponding to the third preset temperature range to heat;
the upper limit threshold of the third preset temperature interval is smaller than the lower limit threshold of the second preset temperature interval, and the number of the warm air heaters corresponding to the third preset temperature interval is smaller than that of the warm air heaters corresponding to the second preset temperature interval.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, if the ratio of the actual ground temperature difference to the coil temperature is within a fourth preset temperature interval, the warm air control module controls the warm air heater corresponding to the fourth preset temperature interval to heat;
the upper limit threshold of the fourth preset temperature interval is smaller than the lower limit threshold of the third preset temperature interval, and the number of the warm air heaters corresponding to the fourth preset temperature interval is smaller than that of the warm air heaters corresponding to the third preset temperature interval.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, the step of obtaining the ratio of the actual temperature difference between the near-earth temperature and the coil temperature according to the set temperature, the near-earth temperature and the coil temperature of the room further comprises the following steps:
selecting a warm air function and/or a defrosting function according to needs;
if the defrosting function is selected, the warm air control module controls all the warm air heaters to heat; if the warm air function is selected, the set temperature, the ground temperature and the coil temperature are obtained.
According to the control method of the lower air outlet fresh air conditioner provided by one embodiment of the invention, the step of controlling the number of the fresh air heaters according to the fresh air temperature specifically comprises the following steps:
if the fresh air temperature measured by the fresh air temperature sensor is at the fresh air preset temperature, controlling the number of the fresh air heaters according to the fresh air preset temperature; if the fresh air temperature measured by the fresh air temperature sensor is lower than the fresh air preset temperature, the number of the fresh air heaters is increased; if the fresh air temperature measured by the fresh air temperature sensor is higher than the fresh air preset temperature, the number of the fresh air heaters is reduced.
The embodiment of the invention also provides a lower air outlet fresh air conditioner, which comprises: the system comprises a main control module, a warm air control module, a fresh air motor, a warm air motor, a fresh air control module, a plurality of fresh air heaters, a plurality of warm air heaters, a fresh air temperature sensor, a warm air temperature sensor and a coil pipe temperature sensor;
fresh air temperature sensor, each fresh air heater with the fresh air motor all passes through fresh air control module with main control module circuit connects, warm air temperature sensor, each warm air heater with the warm air motor all passes through warm air control module with main control module circuit connects, coil pipe temperature sensor with main control module circuit connects, so that fresh air control module control the fresh air motor starts, according to fresh air temperature control that fresh air temperature sensor measured the quantity of fresh air heater, just warm air control module control the warm air motor starts, makes warm air control module according to the ratio control of actual ground temperature difference and coil pipe temperature corresponds quantity the warm air heater heats.
According to the lower air-out fresh air conditioner provided by one embodiment of the present invention, the lower air-out fresh air conditioner further includes: a carbon dioxide sensor; the carbon dioxide sensor is connected with the fresh air control module through a circuit.
According to the lower air-out fresh air conditioner provided by one embodiment of the present invention, the lower air-out fresh air conditioner further includes: the system comprises a WiFi control module, a mobile phone client and a cloud server; the main control module is in communication connection with the mobile phone client through the WiFi control module and the cloud server.
According to the control method of the lower air-out fresh air conditioner, the lower air-out and the fresh air of the air conditioner are controlled by detecting the temperature of the fresh air, the temperature of the near ground and the temperature of the coil pipe, so that the fresh air and warm air control module controls different numbers of fresh air heaters and warm air heaters to heat according to the temperature of the fresh air and the ratio of the actual temperature difference of the near ground to the temperature of the coil pipe, the indoor air quality is improved, and the problem of over-low temperature at the bottom of a room is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a control method of a lower air outlet fresh air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lower air outlet fresh air conditioner provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another lower air outlet fresh air conditioner provided in the embodiment of the present invention;
in the figure, 1, a warm air temperature sensor; 2. a warm air control module; 3. a warm air heater; 4. a main control module; 5. a cloud server; 6. a mobile phone client; 7. a WiFi control module; 8. a fresh air control module; 9. a fresh air heater; 10. a fresh air motor; 11. a near-floor heating wind temperature sensor; 13. a coil temperature sensor; 14. a fresh air temperature sensor; 15. a carbon dioxide sensor; 16. a warm air motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The invention provides a control method of a lower air-out fresh air conditioner, which is described below by combining with figures 1 and 2 and comprises the following steps:
step S1: and selecting a warm air function and/or a fresh air function according to needs.
Step S2: if the fresh air function is selected, the fresh air temperature sensor acquires the fresh air temperature, the number of the fresh air heaters is controlled according to the fresh air temperature, and the number of the fresh air heaters is inversely related to the fresh air temperature.
Step S3: if the warm air function is selected, acquiring the ratio of the actual near-earth temperature difference to the coil pipe temperature according to the set temperature, the near-earth temperature and the coil pipe temperature of the room; controlling a corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the temperature of the coil pipe; the ratio of the near-earth temperature difference to the coil pipe temperature is positively correlated with the number of the warm air heaters controlled by the warm air control module.
After the user selects the warm air function and the fresh air function, the warm air function and the fresh air function are respectively performed according to respective control logics. The main control module 4 sends a signal to the warm air control module 2, after the warm air control module 2 receives the signal, the warm air temperature sensor 1 is controlled to start measuring the temperature of the near ground, the main control module 4 controls the coil temperature sensor 13 to measure the temperature of the coil, the actual temperature difference of the near ground is obtained according to the difference value of the set temperature and the temperature of the near ground, and the corresponding number of the warm air heaters 3 are controlled to heat according to the ratio of the actual temperature difference of the near ground to the temperature of the coil. Meanwhile, the main control module 4 sends a signal to the fresh air control module 8. Fresh air control module 8 receives the signal and then controls fresh air temperature sensor 14 to acquire fresh air temperature, and fresh air control module 8 adjusts the quantity of fresh air heaters 9 according to the fresh air temperature, and the quantity of fresh air heaters 9 is inversely related to the fresh air temperature, so that the fresh air is introduced into the room and heated, and the indoor air quality is improved.
According to the distribution characteristic of the air temperature, when no other factors influence, the air temperature at the lower end of the bottom of the room is reduced from top to bottom in sequence, and the temperature of the whole bottom is kept stable while the temperature of the bottom of the room is prevented from being too low. In the control process, the ratio of the actual near-earth temperature difference to the coil temperature is positively correlated with the number of the warm air heaters 3 controlled by the warm air control module 2.
For example, when the ratio of the actual ground temperature difference to the coil temperature increases, the number of the heater heaters 3 that the heater control module 2 controls to operate increases. When the ratio of the actual ground temperature difference to the coil temperature is reduced, the number of the warm air heaters 3 controlled to work by the warm air control module 2 is reduced.
It should be noted that the lower air outlet fresh air conditioner can be used together with conventional air conditioning equipment. Therefore, in the process of heating control, the lower air outlet fresh air conditioner only needs to ensure the bottom temperature.
According to the control method of the lower air-out fresh air conditioner, the lower air-out and the fresh air of the air conditioner are controlled by detecting the temperature of the fresh air, the temperature of the near ground and the temperature of the coil pipe, so that the fresh air and warm air control module controls different numbers of fresh air heaters and warm air heaters to heat according to the temperature of the fresh air and the ratio of the actual temperature difference of the near ground to the temperature of the coil pipe, the indoor air quality is improved, and the problem of over-low temperature at the bottom of a room is solved.
In this embodiment, as shown in fig. 2, in standby and power-on states, the warm air control module 2 can detect the temperature of a room 60cm above the ground through the near-ground warm air temperature sensor 1, feed back the temperature to the display screen, prompt a temperature value, display blue when the value is lower than a set temperature, display green when the value is suitable, and display red when the value is higher than the set temperature. Simultaneously, warm braw control module 2 still can be through other warm braw temperature sensor detection indoor holistic temperature, also can feed back the display screen in the same, suggestion temperature value, the numerical value is less than the temperature setting and shows blue, suitably shows green, is higher than the temperature setting and shows red.
In the working process, the warm air temperature sensor 1 detects the temperature of the ground, and the coil pipe temperature sensor 13 is used for detecting the temperature of the coil pipe. And calculating to obtain an actual near-earth temperature difference according to the difference value between the set temperature and the near-earth temperature, and then quoting the actual near-earth temperature difference and the coil temperature to obtain the ratio of the actual near-earth temperature difference to the coil temperature. In winter heating, the set temperature is generally greater than the near-earth temperature.
If the ratio of the actual ground temperature difference to the coil temperature is within a first preset temperature range, the warm air control module 2 controls the warm air heater 3 corresponding to the first preset temperature range to heat.
If the ratio of the actual ground temperature difference to the coil temperature is within a second preset temperature range, the warm air control module 2 controls the warm air heater 3 corresponding to the second preset temperature range to heat.
The upper limit threshold of the second preset temperature interval is smaller than the lower limit threshold of the first preset temperature interval, and the number of the warm air heaters 3 corresponding to the second preset temperature interval is smaller than that of the warm air heaters corresponding to the first preset temperature interval.
If the ratio of the actual ground temperature difference to the coil temperature is within a third preset temperature range, the warm air control module 2 controls the warm air heater 3 corresponding to the third preset temperature range to heat.
The upper limit threshold of the third preset temperature interval is smaller than the lower limit threshold of the second preset temperature interval, and the number of the warm air heaters 3 corresponding to the third preset temperature interval is smaller than the number of the warm air heaters 3 corresponding to the second preset temperature interval.
If the ratio of the actual ground temperature difference to the coil temperature is within a fourth preset temperature range, the warm air control module 2 controls the warm air heater 3 corresponding to the fourth preset temperature range to heat.
The upper limit threshold of the fourth preset temperature interval is smaller than the lower limit threshold of the third preset temperature interval, and the number of the warm air heaters 3 corresponding to the fourth preset temperature interval is smaller than the number of the warm air heaters 3 corresponding to the third preset temperature interval.
In a specific embodiment, the near-earth temperature is detected by the warm air temperature sensor 1, and the coil temperature is detected by the coil temperature sensor 13. And calculating to obtain an actual near-earth temperature difference according to the difference value between the set temperature and the near-earth temperature, and then quoting the actual near-earth temperature difference and the coil temperature to obtain the ratio of the actual near-earth temperature difference to the coil temperature. And controlling the corresponding number of warm air heaters 3 to heat according to the ratio of the actual ground temperature difference to the coil temperature.
The first preset temperature interval is [0.5, + ∞ ], and when the temperature of the coil is more than or equal to 0.5 (the set temperature-the near-earth temperature)/the actual ratio of the near-earth temperature difference to the coil temperature corresponds to 6 warm air heaters 3.
The second preset temperature interval is [0.25, 0.5 ], when the temperature of the coil is less than 0.5 and less than or equal to 0.25 (the set temperature-the near-earth temperature), the ratio of the actual near-earth temperature difference to the coil temperature corresponds to 4 warm air heaters 3.
The third preset temperature interval is [0, 0.25 ], when the temperature is more than or equal to 0 (the set temperature-the ground temperature)/the coil temperature is less than 0.25, the ratio of the actual ground temperature difference to the coil temperature at the moment corresponds to 2 warm air heaters 3.
The fourth preset temperature interval is (∞, 0), (the set temperature-the near-earth temperature)/the coil temperature is less than 0, at this time, the ratio of the actual near-earth temperature difference to the coil temperature corresponds to 0 warm air heaters 3, and all the warm air heaters 3 are turned off.
Before the set temperature, the near-earth temperature and the coil temperature are obtained, the warm air function or the defrosting function can be selected according to the requirement, or the warm air function and the defrosting function can be simultaneously selected. If the defrosting function is selected, the warm air control module 2 controls all the warm air heaters 3 to heat. When the air conditioner is turned on or off, the warm air functions can be operated simultaneously or independently. If the warm air function is selected, the temperature near the ground is detected by the warm air temperature sensor 1, and the coil temperature sensor 13 is used for detecting the temperature of the coil. And calculating to obtain an actual near-earth temperature difference according to the difference value between the set temperature and the near-earth temperature, and then quoting the actual near-earth temperature difference and the coil temperature to obtain the ratio of the actual near-earth temperature difference to the coil temperature. And controlling the corresponding number of warm air heaters 3 to heat according to the ratio of the actual ground temperature difference to the coil temperature. It should be noted that if two functions are selected simultaneously, because the defrosting function needs a large amount of heat, all the warm air heaters 3 are controlled to heat, when the defrosting function is started, the logic program corresponding to the warm air function can be shielded, the warm air temperature sensor 1 and the coil pipe temperature sensor 13 are shielded, and the structures corresponding to the warm air function are automatically started to prevent the room temperature from being rapidly reduced.
In addition, if the air conditioner has a warm air forced mode, after the user selects the mode, the warm air temperature sensor 1 and the coil pipe temperature sensor 13 can be shielded, and the user can independently and manually select the starting number of the warm air heaters 3.
The step of controlling the number of the fresh air heaters 9 according to the fresh air temperature specifically comprises the following steps: if the fresh air temperature measured by the fresh air temperature sensor 14 is at the fresh air preset temperature, the number of the fresh air heaters 9 is controlled according to the fresh air preset temperature. If the fresh air temperature measured by the fresh air temperature sensor 14 is lower than the fresh air preset temperature, the number of the fresh air heaters 9 is increased. If the fresh air temperature measured by the fresh air temperature sensor 14 is higher than the fresh air preset temperature, the number of the fresh air heaters 9 is reduced.
For example, when the temperature of the fresh air is less than 0 ℃, the fresh air control module 8 controls to turn on the two fresh air heaters 9. When the temperature of the fresh air is more than or equal to 0 and less than 10 ℃, the fresh air control module 8 controls to start a fresh air heater 9. When the air temperature is less than or equal to 10 ℃, the fresh air control module 8 controls the fresh air heater 9 not to be started.
The present invention also provides a lower air-out fresh air conditioner, as shown in fig. 2, the lower air-out fresh air conditioner includes:
the system comprises a main control module 4, a warm air control module 2, a fresh air motor 10, a warm air motor 16, a fresh air control module 8, a plurality of fresh air heaters 9, a plurality of warm air heaters 3, a fresh air temperature sensor 14, a warm air temperature sensor 1 and a coil pipe temperature sensor 13;
fresh air temperature sensor 14, each fresh air heater 9 and fresh air motor 10 are all connected with main control module 4 through fresh air control module 8, and warm air temperature sensor 1, each warm air heater 3 and warm air motor 16 are all connected with main control module 4 through warm air control module 2, and coil pipe temperature sensor 13 is connected with main control module 4 through circuit. The fresh air temperature sensor 14 is used for measuring the temperature of fresh air. The warm air temperature sensor 1 is used for measuring the warm air temperature. Coil pipe temperature sensor 13 is used for measuring the coil pipe temperature to fresh air control module 8 control fresh air motor 10 starts, according to the quantity of fresh air temperature control fresh air heater 9 of fresh air temperature sensor 14 measuring, and warm braw control module 2 control warm braw motor 16 starts, makes warm braw control module 2 heat according to the warm braw heater 3 that actual ground temperature difference and coil pipe temperature's ratio control correspond quantity.
The control method of the lower air outlet fresh air conditioner comprises the following steps:
step S1: and selecting a warm air function and/or a fresh air function according to needs.
Step S2: if the fresh air function is selected, the fresh air temperature sensor acquires the fresh air temperature, the number of the fresh air heaters is controlled according to the fresh air temperature, and the number of the fresh air heaters is inversely related to the fresh air temperature.
Step S3: if the warm air function is selected, acquiring the ratio of the actual near-earth temperature difference to the coil pipe temperature according to the set temperature, the near-earth temperature and the coil pipe temperature of the room; controlling a corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the temperature of the coil pipe; the ratio of the near-earth temperature difference to the coil pipe temperature is positively correlated with the number of the warm air heaters controlled by the warm air control module.
After the user selects the warm air function and the fresh air function, the warm air function and the fresh air function are respectively performed according to respective control logics. The main control module 4 sends a signal to the warm air control module 2, after the warm air control module 2 receives the signal, the warm air temperature sensor 1 is controlled to start measuring the temperature of the near ground, the main control module 4 controls the coil temperature sensor 13 to measure the temperature of the coil, the actual temperature difference of the near ground is obtained according to the difference value of the set temperature and the temperature of the near ground, and the corresponding number of the warm air heaters 3 are controlled to heat according to the ratio of the actual temperature difference of the near ground to the temperature of the coil. Meanwhile, the main control module 4 sends a signal to the fresh air control module 8. Fresh air control module 8 receives the signal and then controls fresh air temperature sensor 14 to acquire fresh air temperature, and fresh air control module 8 adjusts the quantity of fresh air heaters 9 according to the fresh air temperature, and the quantity of fresh air heaters 9 is inversely related to the fresh air temperature, so that the fresh air is introduced into the room and heated, and the indoor air quality is improved.
According to the distribution characteristic of the air temperature, when no other factors influence, the air temperature at the lower end of the bottom of the room is reduced from top to bottom in sequence, and the temperature of the whole bottom is kept stable while the temperature of the bottom of the room is prevented from being too low. In the control process, the ratio of the actual near-earth temperature difference to the coil temperature is positively correlated with the number of the warm air heaters 3 controlled by the warm air control module 2.
For example, when the ratio of the actual ground temperature difference to the coil temperature increases, the number of the heater heaters 3 that the heater control module 2 controls to operate increases. When the ratio of the actual ground temperature difference to the coil temperature is reduced, the number of the warm air heaters 3 controlled to work by the warm air control module 2 is reduced.
As shown in fig. 3, a carbon dioxide sensor 15 may be added. The carbon dioxide sensor 15 is in circuit connection with the fresh air control module 8. The fresh air control module 8 can control the carbon dioxide sensor 15 to detect the carbon dioxide concentration in a room in standby and starting states and feed back the carbon dioxide concentration to the indicator of the display screen, the value exceeds the set temperature and shows that the brown color shows the heaviness, and the value is lower than the set temperature and shows that the green color shows the suitability.
In addition, as shown in fig. 3, the lower air-out fresh air conditioner further comprises: the system comprises a WiFi control module 7, a mobile phone client 6 and a cloud server 5. The main control module 4 is in communication connection with the mobile phone client 6 through the WiFi control module 7 and the cloud server 5. The fresh air function and the warm air function of the lower air outlet fresh air conditioner can be started through the mobile phone client 6. The warm air temperature sensor 1 can detect the temperature of the room bottom within 80cm in the standby and on states, and feeds back the temperature to the mobile phone client 6, wherein the temperature includes a numerical value and a prompt color such as blue, proper green and high red. The user can select display functions such as warm air and the like through the operation interface of the mobile phone client 6, and the mobile phone client 6 sends a signal to the cloud server 5 to the main control module 4. In addition, this cell-phone customer end 6 is from taking a key setting function, and the back is opened in the user selection, and the warm braw function and the new trend function can be opened automatically to the automatic temperature of judging of lower air-out new trend air conditioner.
According to the lower air-out fresh air conditioner provided by the invention, the lower air-out and the fresh air of the air conditioner are controlled by detecting the fresh air temperature, the near-ground temperature and the coil pipe temperature, so that the fresh air and warm air control module controls different numbers of fresh air heaters and warm air heaters to heat according to the fresh air temperature and the ratio of the actual near-ground temperature difference to the coil pipe temperature, the indoor air quality is improved, and the problem of over-low temperature at the bottom of a room is solved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method of a lower air outlet fresh air conditioner is characterized by comprising the following steps:
selecting a warm air function and/or a fresh air function according to needs;
if the fresh air function is selected, the fresh air temperature sensor acquires the fresh air temperature, the number of the fresh air heaters is controlled according to the fresh air temperature, and the number of the fresh air heaters is inversely related to the fresh air temperature;
if the warm air function is selected, acquiring the ratio of the actual near-earth temperature difference to the coil pipe temperature according to the set temperature, the near-earth temperature and the coil pipe temperature of the room; controlling a corresponding number of warm air heaters to heat according to the ratio of the actual ground temperature difference to the temperature of the coil pipe; the actual ground temperature difference is a difference value between the set temperature and the ground temperature, and the ratio of the actual ground temperature difference to the coil temperature is positively correlated with the number of the warm air heaters controlled by the warm air control module.
2. The control method of the lower air outlet fresh air conditioner according to claim 1, wherein the step of controlling the corresponding number of the warm air heaters to heat according to the ratio of the actual ground temperature difference to the coil temperature specifically comprises:
if the ratio of the actual ground temperature difference to the coil temperature is within a first preset temperature range, the warm air control module controls the warm air heater corresponding to the first preset temperature range to heat.
3. The control method of the lower air-out fresh air conditioner according to claim 2, wherein if the ratio of the actual ground temperature difference to the coil temperature is within a second preset temperature range, the warm air control module controls the warm air heater corresponding to the second preset temperature range to heat;
the upper limit threshold value of the second preset temperature interval is smaller than the lower limit threshold value of the first preset temperature interval, and the number of the warm air heaters corresponding to the second preset temperature interval is smaller than that of the warm air heaters corresponding to the first preset temperature interval.
4. The control method of the lower air-out fresh air conditioner according to claim 3, wherein if the ratio of the actual ground temperature difference to the coil temperature is within a third preset temperature range, the warm air control module controls the warm air heater corresponding to the third preset temperature range to heat;
the upper limit threshold of the third preset temperature interval is smaller than the lower limit threshold of the second preset temperature interval, and the number of the warm air heaters corresponding to the third preset temperature interval is smaller than that of the warm air heaters corresponding to the second preset temperature interval.
5. The control method of the lower air-out fresh air conditioner according to claim 4, wherein if the ratio of the actual ground temperature difference to the coil temperature is within a fourth preset temperature range, the warm air control module controls a warm air heater corresponding to the fourth preset temperature range to heat;
the upper limit threshold of the fourth preset temperature interval is smaller than the lower limit threshold of the third preset temperature interval, and the number of the warm air heaters corresponding to the fourth preset temperature interval is smaller than that of the warm air heaters corresponding to the third preset temperature interval.
6. The control method of the lower air-out fresh air conditioner according to claim 1, wherein the step of obtaining the ratio of the actual temperature difference between the near-earth and the temperature of the coil according to the set temperature, the near-earth temperature and the temperature of the coil in the room further comprises the following steps:
selecting a warm air function and/or a defrosting function according to needs;
if the defrosting function is selected, the warm air control module controls all the warm air heaters to heat; if the warm air function is selected, the set temperature, the ground temperature and the coil temperature are obtained.
7. The control method of the lower air-out fresh air conditioner according to any one of claims 1 to 6, wherein the step of controlling the number of the fresh air heaters according to the fresh air temperature specifically comprises:
if the fresh air temperature measured by the fresh air temperature sensor is at the fresh air preset temperature, controlling the number of the fresh air heaters according to the fresh air preset temperature; if the fresh air temperature measured by the fresh air temperature sensor is lower than the fresh air preset temperature, the number of the fresh air heaters is increased; if the fresh air temperature measured by the fresh air temperature sensor is higher than the fresh air preset temperature, the number of the fresh air heaters is reduced.
8. A lower outlet fresh air conditioner for performing the control method according to any one of claims 1 to 7, comprising:
the system comprises a main control module, a warm air control module, a fresh air motor, a warm air motor, a fresh air control module, a plurality of fresh air heaters, a plurality of warm air heaters, a fresh air temperature sensor, a warm air temperature sensor and a coil pipe temperature sensor;
fresh air temperature sensor, each fresh air heater with the fresh air motor all passes through fresh air control module with main control module circuit connects, warm air temperature sensor, each warm air heater with the warm air motor all passes through warm air control module with main control module circuit connects, coil pipe temperature sensor with main control module circuit connects, so that fresh air control module control the fresh air motor starts, according to the fresh air temperature control that warm air temperature sensor measured the quantity of fresh air heater, just warm air control module control the warm air motor starts, makes warm air control module according to the ratio control of actual ground temperature difference and coil pipe temperature corresponds quantity the warm air heater heats.
9. The lower outlet fresh air conditioner according to claim 8, further comprising: a carbon dioxide sensor; the carbon dioxide sensor is connected with the fresh air control module through a circuit.
10. The lower outlet fresh air conditioner according to claim 8, further comprising: the system comprises a WiFi control module, a mobile phone client and a cloud server; the main control module is in communication connection with the mobile phone client through the WiFi control module and the cloud server.
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| JP2708832B2 (en) * | 1988-12-23 | 1998-02-04 | 三洋電機株式会社 | Control method of air conditioning system |
| JP2931484B2 (en) * | 1992-08-13 | 1999-08-09 | 三洋電機株式会社 | Air conditioner |
| CN109564021A (en) * | 2016-08-09 | 2019-04-02 | 三菱电机株式会社 | Air-conditioning device |
| CN107514742B (en) * | 2017-07-27 | 2021-04-20 | 青岛海尔空调器有限总公司 | Electric heating control method for partitioned air supply air conditioner and air conditioner |
| CN207422580U (en) * | 2017-10-25 | 2018-05-29 | 广东美的制冷设备有限公司 | Electric heating tube and with its air conditioner indoor unit, air conditioner |
| CN208124494U (en) * | 2018-02-09 | 2018-11-20 | 广东申菱环境系统股份有限公司 | A kind of all-fresh air central air-conditioning of electric heating preheating |
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