CN109210616B - Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium - Google Patents
Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium Download PDFInfo
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- CN109210616B CN109210616B CN201811063897.7A CN201811063897A CN109210616B CN 109210616 B CN109210616 B CN 109210616B CN 201811063897 A CN201811063897 A CN 201811063897A CN 109210616 B CN109210616 B CN 109210616B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- 230000008020 evaporation Effects 0.000 claims abstract description 22
- 230000005494 condensation Effects 0.000 claims abstract description 17
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 9
- 230000006870 function Effects 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an indoor unit, a variable air volume control method thereof, an air conditioner, computer equipment and a storage medium. The variable air volume control method comprises the steps of detecting the temperature of the indoor unit in real time, comparing the detected temperature with a set temperature range, and correcting the air exhaust volume of the indoor unit according to a comparison result. In the refrigeration running mode, the temperature comprises the evaporating temperature and the return air humidity of the indoor unit; in the heating operation mode, the temperature is a condensing temperature of the indoor unit. The invention can monitor the indoor unit in real time according to the evaporation temperature and the return air humidity or the condensation temperature, and correct the air exhaust amount, thereby bringing better and more comfortable use experience to users and improving the comfort of the use of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an indoor unit, a variable air volume control method thereof, an air conditioner, computer equipment and a storage medium.
Background
Most of multi-connected indoor units in the current market are only provided with 3-5 air speeds for adjusting air quantity, and 3 temperature sensing bags are used for controlling the units, namely an inlet pipe temperature sensing bag, an outlet pipe temperature sensing bag and a return air inlet return air temperature sensing bag of an indoor unit heat exchanger. Different air volume requirements of users are realized through the control of different windshields, so that the requirement of visual comfort of human bodies is met. Although the unit can be effectively and reliably controlled through the 3 temperature sensors, the requirements of a user on cold consumption and heat consumption are met, and the control requirement of the user on the indoor environment temperature is met, in the above control mode, different wind gears correspond to constant motor rotating speeds, namely, different wind amounts, and if the selection of the user is limited to 3-5 wind amounts and can be adjusted, the control mode is not the best control mode from the perspective of user experience and comfort. Particularly, when the air conditioner has the condition that the air outlet temperature of the indoor unit is too high or too low due to the fact that the evaporating temperature is suddenly high and suddenly low in the cooling operation process, or the air conditioner has the condition that the air outlet temperature of the indoor unit is too high or too low due to the fact that the condensing temperature is suddenly high and suddenly low in the heating operation process, the air conditioner is adjusted only through limited-grade components, and finally the user experience is poor and uncomfortable.
disclosure of Invention
the invention provides an indoor unit, an air volume changing control method thereof, an air conditioner, computer equipment and a storage medium, and aims to solve the problem that in the prior art, the use experience of a user is poor and uncomfortable due to limited-grade air volume adjustment.
The invention provides a variable air volume control method of an indoor unit, which comprises the following steps: and detecting the temperature of the indoor unit in real time, comparing the detected temperature with a set temperature range, and correcting the air exhaust quantity of the indoor unit according to a comparison result.
In the refrigeration running mode, the temperature comprises the evaporating temperature and the return air humidity of the indoor unit; in the heating operation mode, the temperature is a condensing temperature of the indoor unit.
When the unit is in refrigeration operation,
if the evaporation temperature is lower than the set range of the unit, the circulating air volume is increased on the basis of the current air volume, and if the return air humidity is greater than or less than the set value of the unit at the moment, the air volume is corrected according to a correction coefficient on the basis of the increased air volume;
if the evaporation temperature of the unit is higher than the set range, the circulating air volume is reduced on the basis of the current air volume, and if the return air humidity is higher than or lower than the set value of the unit at the moment, the air volume is corrected according to the correction coefficient on the basis of the improved air volume.
In one embodiment, the variable air volume control method includes the following steps:
Step 11, judging whether the evaporation temperature Te of the indoor unit is within a set temperature interval range [ Te.min, Te.max ], and if so, maintaining the current rotating speed of the fan unchanged;
Step 12, when the evaporation temperature Te is less than the set minimum value, increasing the rotating speed of the fan by a time, and then turning to step 13; when the evaporation temperature Te is greater than the set maximum value, reducing the rotating speed of the fan by b times, and then turning to the step 14;
Step 13, judging whether the return air humidity of the indoor unit is greater than a set value, if so, continuously increasing the rotating speed of the fan by a1 times; if not, reducing the rotating speed of the fan by a2 times;
Step 14, judging whether the return air humidity of the indoor unit is greater than a set value, if so, increasing the rotating speed of the fan by b2 times; if not, continuously reducing the rotating speed of the fan by b1 times;
the above a1, a2, b1 and b2 are correction coefficients.
Preferably, in step 2, a is a power function of the difference between the set minimum value and the evaporation temperature, and b is a power function of the difference between the evaporation temperature and the set maximum value.
in the unit heating operation mode, if the condensation temperature of the unit is greater than the set range of the unit, the circulating air volume is increased on the basis of the current air volume; and if the condensation temperature of the unit is lower than the set range of the unit, reducing the circulating air volume on the basis of the current air volume.
In one embodiment, the variable air volume control method includes the following steps:
step 21, judging whether the condensation temperature Tc of the indoor unit is within a set interval range [ Tc.min, Tc.max ], and if so, maintaining the current fan rotating speed unchanged;
Step 22, when the condensation temperature is higher than the maximum value, the rotating speed of the fan is increased by c times; and when the condensation temperature is lower than the minimum value, reducing the rotating speed of the fan by d times.
preferably, c is a power function of the difference between the condensing temperature and the set maximum value, and d is a power function of the difference between the set minimum value and the condensing temperature.
the invention also provides an indoor unit, and the indoor unit uses the variable air volume control method.
The invention also provides an air conditioner, and the indoor unit of the air conditioner uses the variable air volume control method.
The invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the variable air volume control method when executing the program.
The invention also provides a storage medium containing computer executable instructions, and the storage medium executable instructions are used for executing the variable air volume control method when being operated by a computer processor.
Compared with the prior art, the invention has the following beneficial effects: on the basis of the volume of airing exhaust of current indoor set, increased return air humidity transducer, through indoor set evaporating temperature and return air humidity, or indoor set condensing temperature carries out real-time supervision to the indoor set to revise the volume of airing exhaust, bring better more comfortable use for the user and experience, improve the travelling comfort that the air conditioner used.
Drawings
Fig. 1 is a schematic view of a conventional indoor unit;
FIG. 2 is a schematic view of an indoor unit according to the present invention;
FIG. 3 is a flow chart of a time-varying air volume control method in a refrigerating state according to the present invention;
Fig. 4 is a flow chart of a heating state time-varying air volume control method according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, the indoor unit generally includes a liquid inlet pipe communicated with the outdoor unit, the liquid inlet pipe is provided with a filter 1, an electronic expansion valve 2, an indoor heat exchanger 5, a fan 6 and a dc motor 7, the indoor heat exchanger is provided with an inlet pipe temperature bulb 3, an outlet pipe temperature bulb 4, and the indoor unit is further provided with a return air temperature bulb 8.
The return air humidity sensor 9 is additionally arranged on the basis of the existing indoor unit, so that the evaporation temperature of the indoor unit and the relative humidity of the indoor environment can be monitored in real time, and the monitored data is fed back to the whole indoor unit for control in real time, as shown in figure 2.
The variable air volume control method of the indoor unit comprises the steps of detecting the temperature of the indoor unit in real time, comparing the detected temperature with a set temperature range, and correcting the air exhaust volume of the indoor unit according to a comparison result. In the refrigeration running mode, the temperature comprises the evaporating temperature and the return air humidity of the indoor unit; in the heating operation mode, the temperature is a condensing temperature of the indoor unit.
When the unit is in refrigeration operation, if the evaporation temperature of the unit is lower than the set range of the unit, the circulating air volume is increased on the basis of the current air volume (realized by increasing the rotating speed of a fan of an indoor unit), and if the monitored humidity is higher than the set value of the unit, the air volume is continuously increased on the basis of the increased air volume according to a certain correction coefficient; if the evaporation temperature of the unit is higher than the set range, the circulating air volume is reduced on the basis of the current air volume (realized by reducing the rotating speed of the fan of the indoor unit), and if the monitored humidity is lower than the set value of the unit, the air volume is reduced according to a certain correction coefficient on the basis of the increased air volume.
when the unit is in heating operation, if the condensation temperature of the unit is higher than the set range of the unit, the circulating air volume is increased on the basis of the current air volume (realized by increasing the rotating speed of the fan of the indoor unit). And if the condensation temperature of the unit is lower than the set range of the unit, reducing the circulating air quantity on the basis of the current air quantity (realized by reducing the rotating speed of the fan of the indoor unit).
The invention corrects the air exhaust quantity of the fan to different degrees by simultaneously comparing the evaporation temperature and the return air humidity with the set range of the unit or comparing the condensation temperature with the set range of the unit, thereby achieving the purposes of bringing better and more comfortable use experience to users and improving the comfort of the use of the air conditioner.
Fig. 3 is a flowchart of an embodiment of a time-varying air volume control method in a cooling state according to the present invention.
When the air conditioner operates in a refrigerating mode, the evaporation temperature Te of the unit is kept within the range of a set interval [ Te.min, Te.max ] when the unit operates normally.
if the increase emission temperature Te is detected to be low in the air conditioner refrigeration operation process, namely Te is less than Te.min, the air outlet temperature of the internal unit can be lower than the normal range of the unit, at the moment, no matter what rotating speed the internal fan is currently operated, the rotating speed of the current indoor fan is increased by a times, and a is a power function of the difference value between the set minimum value and the evaporation temperature. If the return air humidity value monitored by the humidity sensor is larger than the set value of the unit, the air quantity is continuously increased, and a1 times is increased on the basis of the current rotating speed of the internal fan; if the monitoring value of the humidity sensor is smaller than the set value of the unit, the air quantity is reduced, and a2 times of the rotation speed of the current inner fan is reduced. a1 and a2 are correction coefficients, and the calculation formula is as follows:
Rtarget=Rc*a[Te.min-Te]*a1*a2，
Wherein Rtarget is the target rotating speed of the fan; rc is the initial rotation speed of the fan.
a. the value range of a1 is between [1, 2], and the value range of a2 is between [0, 1 ].
If the evaporation temperature Te is higher in the refrigeration operation process of the air conditioner, namely Te is more than Te.max, the air outlet temperature of the inner machine is possibly higher than the normal range of the machine set, no matter what rotating speed the inner fan is currently operated, the rotating speed of the inner fan is reduced by b times, and b is a power function of the difference value between the evaporation temperature and the set maximum value. If the return air temperature value monitored by the humidity sensor is smaller than the set value, the air quantity is continuously reduced, and b1 times are reduced on the basis of the current rotating speed of the internal fan; if the return air humidity value monitored by the humidity sensor is larger than the set value, the b2 times is increased on the basis of the current rotating speed of the inner fan. b1 and b2 are calculated as follows:
Rtarget=Rc*b[Te-Te.max]*b1*b2，
wherein Rtarget is the target rotating speed of the fan; rc is the initial rotation speed of the fan.
b. the value range of b1 is between [0, 1], and the value range of b2 is between [1, 2 ].
Fig. 4 is a flowchart of an embodiment of a method for controlling a time-varying air volume in a heating state according to the present invention.
When the air conditioner is in heating operation, the normal operation of the condensation temperature Tc of the unit is maintained within the set interval range [ Tc.min, Tc.max ].
if the condensation temperature Tc is higher in the heating operation process of the air conditioner, namely Tc is more than Tc.max, the air outlet temperature of the indoor unit is possibly higher than the normal range of the unit, no matter what rotating speed the indoor fan is currently operated, the rotating speed of the indoor fan is increased by c times on the basis of the rotating speed of the current indoor fan, c is a power function of the difference value of the condensation temperature and the set maximum value, and the calculation formula is as follows:
Rtarget=Rc*c[Tc-Tc.max]，
Wherein Rtarget is the target rotating speed of the fan; rc is the initial rotation speed of the fan. The value range of c is between [1, 2 ].
If the condensation temperature Tc is lower in the heating operation process of the air conditioner, namely Tc is less than Tc.min, the air outlet temperature of the inner machine is possibly lower than the normal range of the machine set, and at the moment, no matter what rotating speed the inner fan is currently operated, the rotating speed of the inner fan is reduced by d times on the basis of the rotating speed of the current inner fan; d is a power function of the difference between the set minimum value and the condensing temperature, and the calculation formula is as follows:
Rtarget=Rc*d[Tc.min-Tc]，
wherein Rtarget is the target rotating speed of the fan; rc is the initial rotating speed of the fan, and the value range of d is between [0 and 1 ].
The indoor unit and the air conditioner using the variable air volume control method provided by the invention solve the common problems in the control process of the existing air conditioning unit, namely the air conditioner sometimes causes the air outlet temperature of the indoor unit to be over or over low due to the sudden rise and fall of the evaporation temperature in the refrigeration running process; or the air conditioner sometimes can lead to indoor set air-out temperature too high or low because of the condensation temperature is suddenly high suddenly low in the heating operation process, finally lead to user to use and experience very poor, uncomfortable sensation, can bring better more comfortable use experience for the user.
The variable air volume control method proposed by the present invention may be stored in a memory of a computer device or in a separate storage medium as a computer program, and implemented when the program is executed by a processor of the computer device.
the above examples are intended only to illustrate specific embodiments of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the inventive concept, and these modifications and variations shall fall within the protective scope of the present invention.
Claims (6)
1. a variable air volume control method of an indoor unit is characterized by comprising the following steps: the method comprises the following steps of detecting the temperature of the indoor unit in real time, comparing the detected temperature with a set temperature range, and correcting the air exhaust quantity of the indoor unit according to a comparison result, wherein when the unit is in refrigeration operation, the method comprises the following steps:
Step 11, judging whether the evaporation temperature Te of the indoor unit is within a set temperature interval range [ Te.min, Te.max ], and if so, maintaining the current rotating speed of the fan unchanged;
Step 12, when the evaporation temperature Te is less than the set minimum value, increasing the rotating speed of the fan by a time, and then turning to step 13; when the evaporation temperature Te is greater than the set maximum value, reducing the rotating speed of the fan by b times, and then turning to the step 14;
step 13, judging whether the return air humidity of the indoor unit is greater than a set value, if so, continuously increasing the rotating speed of the fan by a1 times; if not, reducing the rotating speed of the fan by a2 times;
Step 14, judging whether the return air humidity of the indoor unit is greater than a set value, if so, increasing the rotating speed of the fan by b2 times; if not, continuously reducing the rotating speed of the fan by b1 times;
The above a1, a2, b1 and b2 are correction coefficients, a is a power function of the difference between the set minimum value and the evaporation temperature, and b is a power function of the difference between the evaporation temperature and the set maximum value.
2. A variable air volume control method of an indoor unit is characterized by comprising the following steps: the method comprises the following steps of detecting the temperature of the indoor unit in real time, comparing the detected temperature with a set temperature range, and correcting the air exhaust quantity of the indoor unit according to a comparison result, wherein when the unit is in a heating operation mode, the method comprises the following steps:
step 21, judging whether the condensation temperature Tc of the indoor unit is within a set interval range [ Tc.min, Tc.max ], and if so, maintaining the current fan rotating speed unchanged;
Step 22, when the condensation temperature is higher than the maximum value, the rotating speed of the fan is increased by c times; when the condensation temperature is lower than the minimum value, reducing the rotating speed of the fan by d times;
C is a power function of the difference between the condensing temperature and the set maximum value, and d is a power function of the difference between the set minimum value and the condensing temperature.
3. An indoor unit, characterized in that the indoor unit employs the variable air volume control method according to claim 1 or 2.
4. an air conditioner characterized in that the variable air volume control method according to claim 1 or 2 is used in an indoor unit of the air conditioner.
5. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the variable air volume control method according to claim 1 or 2 when executing the program.
6. A storage medium containing computer-executable instructions for performing the variable air volume control method of claim 1 or 2 when executed by a computer processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811063897.7A CN109210616B (en) | 2018-09-12 | 2018-09-12 | Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium |
| PCT/CN2018/122333 WO2020052149A1 (en) | 2018-09-12 | 2018-12-20 | Indoor unit and variable air volume control method therefor, air conditioner, computer device, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811063897.7A CN109210616B (en) | 2018-09-12 | 2018-09-12 | Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium |
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| Publication Number | Publication Date |
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| CN109210616A CN109210616A (en) | 2019-01-15 |
| CN109210616B true CN109210616B (en) | 2019-12-13 |
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| WO (1) | WO2020052149A1 (en) |
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| CN109210616B (en) * | 2018-09-12 | 2019-12-13 | 珠海格力电器股份有限公司 | Indoor unit, variable air volume control method thereof, air conditioner, computer device, and storage medium |
| CN109974253B (en) * | 2019-04-01 | 2020-02-18 | 珠海格力电器股份有限公司 | Fan control method, device and system of air conditioner capable of adjusting fan rotating speed |
| CN113587384B (en) * | 2021-07-12 | 2022-11-15 | Tcl空调器(中山)有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN113864924B (en) * | 2021-10-11 | 2022-11-08 | 广东美的制冷设备有限公司 | Control method, controller, device and storage medium for air conditioning device |
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| WO2020052149A1 (en) | 2020-03-19 |
| CN109210616A (en) | 2019-01-15 |
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