CN110470032B - Air outlet temperature control method and device, air conditioner and computer readable storage medium - Google Patents
Air outlet temperature control method and device, air conditioner and computer readable storage medium Download PDFInfo
- Publication number
- CN110470032B CN110470032B CN201910717892.XA CN201910717892A CN110470032B CN 110470032 B CN110470032 B CN 110470032B CN 201910717892 A CN201910717892 A CN 201910717892A CN 110470032 B CN110470032 B CN 110470032B
- Authority
- CN
- China
- Prior art keywords
- temperature
- temperature difference
- air
- outlet
- compressor
- 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
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
- F24F11/62—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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
Landscapes
- 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)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air outlet temperature control method, an air outlet temperature control device, an air conditioner and a computer readable storage medium, wherein the air outlet temperature control method comprises the following steps: acquiring an air outlet temperature and a set temperature; and adjusting the running frequency of the compressor and the opening degree of the electronic expansion valve according to the air outlet temperature and the set temperature. The air outlet temperature control method of the invention can adjust the air outlet temperature of the air conditioner, can meet the use requirements of users on the air conditioner, enables the air outlet temperature of the air conditioner to be more in line with the temperature actually required by the users, is not easy to cause discomfort even if the air is directly blown, and improves the air outlet comfort of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air outlet temperature control method and device and an air conditioner.
Background
With the continuous improvement of the living standard of people, the air conditioner is widely applied.
At present, with the development of air conditioning technology, the requirements of users on the use of air conditioners are higher and higher. The existing air conditioner operates according to the target environment temperature, namely, the compressor is stopped when the target environment temperature is reached, the air outlet temperature of the air outlet of the air conditioner is kept unchanged, but because the air outlet temperature of the air conditioner is not consistent with the actual set temperature, if the air outlet temperature of the air outlet of the air conditioner is always kept unchanged, discomfort is easily caused during direct blowing, and the comfort is reduced.
Therefore, the research and development of an air outlet temperature control method capable of effectively solving the problems are the technical problems which are urgently needed to be solved at present.
Disclosure of Invention
The invention solves the problem that the air outlet temperature of the air conditioner is not consistent with the actual set temperature, and if the air outlet temperature is always kept unchanged, discomfort is easily caused during direct blowing, and the comfort is reduced.
In order to solve the above problems, the present invention provides an outlet air temperature control method, comprising the steps of:
s200, acquiring an air outlet temperature and a set temperature;
s300, adjusting the running frequency of the compressor and the opening degree of the electronic expansion valve according to the air outlet temperature and the set temperature.
Therefore, by the method, the air outlet temperature of the air conditioner can be adjusted, the use requirement of a user on the air conditioner can be met, the air outlet temperature of the air conditioner can better meet the actual requirement of the user, discomfort can not be easily caused even if the air conditioner is directly blown, and the air outlet comfort of the air conditioner is improved.
Optionally, step S200, obtaining the outlet air temperature and the set temperature, further include before:
and S100, controlling the compressor to operate at a preset frequency for a preset time.
Therefore, the compressor and the electronic expansion valve can be stably adjusted, and the accuracy of adjusting the air outlet temperature is improved.
Optionally, in the step S300, adjusting the operating frequency of the compressor and the opening degree of the electronic expansion valve according to the outlet air temperature and the set temperature includes:
s310, determining an air outlet temperature difference according to the air outlet temperature and the set temperature; the outlet air temperature difference is the absolute value of the difference between the set temperature and the outlet air temperature;
s320, judging whether the outlet air temperature difference is in a first temperature difference interval, a second temperature difference interval or a preset temperature difference interval; the temperature difference value of any one of the first temperature difference intervals is greater than that of any one of the second temperature difference intervals, and the temperature difference value of any one of the second temperature difference intervals is greater than that of any one of the preset temperature difference intervals;
s330, if the outlet air temperature difference is in the first temperature difference interval, controlling the compressor and the electronic expansion valve to execute a first control process; if the air outlet temperature difference is in the second temperature difference region, controlling the compressor and the electronic expansion valve to execute a second control process; and if the air outlet temperature difference is within the preset temperature difference range, controlling the compressor and the electronic expansion valve to respectively keep the current frequency and the current opening constant.
Like this, can be according to the difference in temperature interval that the air-out difference in temperature was located, select the control process of compressor and electronic expansion valve, realize distinguishing regulation air-out temperature, when avoiding the regulating power degree to be the same all the time, air-out temperature is difficult to be stabilized in presetting the difference in temperature interval to accuracy and reliability when guarantee regulation air-out temperature.
Optionally, the first control process includes:
s410, controlling the compressor to adjust the operation frequency towards the direction that the outlet air temperature is close to the set temperature;
s420, judging whether the current air outlet temperature difference is in the second temperature difference interval;
and S430, if not, jumping to the step S410, if so, controlling the electronic expansion valve to adjust the opening degree towards the air outlet temperature close to the set temperature direction at a preset speed rate until the air outlet temperature difference is within the preset temperature difference interval.
Like this, when the air-out difference in temperature is great, the operating frequency that can prior regulation compressor makes the air-out temperature draw close to setting for the temperature fast, and after the air-out difference in temperature reduces gradually, rethread fine setting electronic expansion valve's aperture makes the air-out temperature slowly draw close to setting for the temperature to realize quick and accurate regulation air-out temperature, not only can shorten and adjust required time, can also ensure the accuracy and the reliability of adjusting the air-out temperature.
Optionally, step S410, controlling the compressor to adjust the operating frequency in a direction where the outlet air temperature is close to the set temperature direction includes:
s411, judging whether the outlet air temperature difference is in a third temperature difference interval or a fourth temperature difference interval; the third temperature difference interval and the fourth temperature difference interval do not intersect with each other, the set of the third temperature difference interval and the fourth temperature difference interval is equal to the first temperature difference interval, and any temperature difference value in the third temperature difference interval is larger than any temperature difference value in the fourth temperature difference interval;
s412, if the outlet air temperature difference is located in the third temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature to be close to the set temperature direction at a first speed, and if the outlet air temperature difference is located in the fourth temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature to be close to the set temperature direction at a second speed; wherein the first rate is greater than the second rate.
Therefore, the time required by the air outlet temperature reaching the set temperature can be further shortened, and the efficiency of the air conditioner in adjusting the air outlet temperature is further improved.
Optionally, the second control process includes:
and S510, controlling the electronic expansion valve to adjust the opening degree towards the direction that the air outlet temperature is close to the set temperature at a preset speed until the air outlet temperature difference is within the preset temperature difference range.
Therefore, when the difference between the air outlet temperature and the set temperature is small, the air outlet temperature can be slowly closed to the set temperature by adjusting the opening degree of the electronic expansion valve, and the reliability of adjusting the air outlet temperature is further guaranteed.
A computer-readable storage medium, storing a computer program which, when read and executed by a processor, implements the method of any of the above.
In order to solve the above problems, the present invention further provides an outlet air temperature control device, including a compressor and an indoor unit provided with an electronic expansion valve, further including:
the acquiring unit is used for acquiring the air outlet temperature at the air outlet of the indoor unit and the set temperature of the indoor unit;
and the control unit is used for adjusting the running frequency of the compressor and the opening degree of the electronic expansion valve according to the outlet air temperature and the set temperature.
Like this, through obtaining the air-out temperature that the unit obtained indoor set air outlet department and the temperature of setting of indoor set, the control unit is according to air-out temperature and temperature of setting for, the control compressor adjusts operating frequency, electronic expansion valve adjusts the aperture for the air-out temperature of air conditioner is adjustable, can satisfy the user demand to the air conditioner, the air-out temperature of letting the air conditioner accords with the temperature of user's actual need more, even directly blow also difficult arouse uncomfortable, the travelling comfort of air conditioner air-out has been improved.
Optionally, the control unit is further configured to control the compressor to operate at a preset frequency for a preset time period.
Therefore, when the indoor unit is started, after the running frequency of the compressor is stable, the obtaining unit obtains the air outlet temperature and the set temperature, the compressor and the electronic expansion valve can be stably adjusted, and the accuracy and the reliability of adjusting the air outlet temperature are improved.
Optionally, the control unit includes:
the calculation module is used for determining the air outlet temperature difference according to the air outlet temperature and the set temperature; the outlet air temperature difference is the absolute value of the difference between the set temperature and the outlet air temperature;
the judging module is used for judging whether the air outlet temperature difference is in a first temperature difference interval, a second temperature difference interval or a preset temperature difference interval; wherein, there is no intersection between the first temperature difference interval, the second temperature difference interval and the preset temperature difference interval;
the first control module is used for controlling the compressor and the electronic expansion valve to execute a first control process if the outlet air temperature difference is located in the first temperature difference interval;
the second control module is used for controlling the compressor and the electronic expansion valve to execute a second control process if the outlet air temperature difference is located in the second temperature difference interval;
and the third control module is used for controlling the compressor and the electronic expansion valve to respectively keep the current frequency and the current opening constant if the air outlet temperature difference is within the preset temperature difference interval.
Like this, the control unit can select the control process of compressor and electronic expansion valve according to the difference in temperature interval that the air-out difference in temperature was located, realizes distinguishing regulation air-out temperature, when avoiding the regulating power degree the same all the time, air-out temperature is difficult to be stabilized in presetting the difference in temperature interval to accuracy and reliability when guarantee regulation air-out temperature.
In order to solve the above problem, the present invention further provides an air conditioner, including a computer readable storage medium storing a computer program and a processor, where when the computer program is read by the processor and is run, the method for controlling the outlet air temperature according to any one of the above methods.
Compared with the prior art, the air conditioner and the air outlet temperature control method have the same advantages, and are not repeated herein.
Drawings
Fig. 1 is a flowchart of an outlet air temperature control method according to an embodiment of the present invention;
fig. 2 is a flowchart of another situation of the outlet air temperature control method in the embodiment of the present invention;
FIG. 3 is a flowchart of step S300 according to an embodiment of the present invention;
FIG. 4 is a flowchart of a first control process in the embodiment of the invention;
FIG. 5 is a flowchart of step S410 according to an embodiment of the present invention;
fig. 6 is a block diagram of the structure of the outlet air temperature control device in the embodiment of the present invention;
fig. 7 is a block diagram of a control unit according to an embodiment of the present invention.
Description of reference numerals:
10-compressor, 20-indoor unit, 30-electronic expansion valve, 40-acquisition unit, 50-control unit, 51-calculation module, 52-judgment module, 53-first control module, 54-second control module and 55-third control module.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "high", "low", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, cannot be construed as limiting the present invention.
Referring to fig. 1, the present embodiment provides an outlet air temperature control method, including the following steps:
s200, acquiring an air outlet temperature and a set temperature;
and step S300, adjusting the running frequency of the compressor and the opening degree of the electronic expansion valve according to the outlet air temperature and the set temperature.
Specifically, the air outlet temperature in the method is the actual air outlet temperature at the air outlet of the indoor unit of the air conditioner, and the set temperature is the air outlet temperature set by the user through the air conditioner receiver, which is the air outlet temperature expected by the user, wherein the air conditioner receiver can be a remote controller or a mobile phone of the user. When the operation frequency of the compressor and the opening degree of the electronic expansion valve are changed, the air outlet temperature of the air conditioner is changed along with the change of the operation frequency of the compressor and the opening degree of the electronic expansion valve, namely the air outlet temperature can be changed by adjusting the operation frequency of the compressor and the opening degree of the electronic expansion valve, and the air outlet temperature is close to the set temperature.
Like this, through the method that this embodiment provided for the air-out temperature of air conditioner is adjustable, can satisfy the user demand to the air conditioner, lets the air-out temperature of air conditioner accord with the temperature of user's actual need more, even directly blow also difficult arouses discomfort, has improved the travelling comfort of air-out of air conditioner.
Optionally, as shown in fig. 2, before step S200, the method further includes:
and S100, controlling the compressor to operate at a preset frequency for a preset time.
In this embodiment, the preset frequency is an operation frequency of a compressor set when the air conditioner leaves a factory, and the compressor stably operates at the preset frequency each time the air conditioner is started. Before the operation of adjusting the outlet air temperature is started, the compressor is operated at a preset frequency for a preset time. This is because when the air conditioner just starts, the operating frequency of the compressor gradually increases from zero to the preset frequency, and then the compressor keeps the preset frequency unchanged and stably operates, and in this process, the outlet air temperature does not reach a stable state yet, and is also constantly changing. If direct detection air-out temperature this moment, can cause the air-out temperature of acquireing to differ too greatly with the air-out temperature after the stability, the testing result is inaccurate, influences the accuracy of adjusting the air-out temperature.
Therefore, the compressor and the electronic expansion valve can be stably adjusted, and the accuracy of adjusting the air outlet temperature is improved.
Optionally, as shown in fig. 3, step S300 specifically includes:
step S310, determining an air outlet temperature difference according to the air outlet temperature and a set temperature; the outlet air temperature difference is the absolute value of the difference between the set temperature and the outlet air temperature;
step S320, judging whether the outlet air temperature difference is in a first temperature difference interval, a second temperature difference interval or a preset temperature difference interval; the temperature difference value of any one of the first temperature difference intervals is greater than that of any one of the second temperature difference intervals, and the temperature difference value of any one of the second temperature difference intervals is greater than that of any one of the preset temperature difference intervals;
step S330, if the outlet air temperature difference is in the first temperature difference interval, controlling the compressor and the electronic expansion valve to execute a first control process; if the air outlet temperature difference is in the second temperature difference interval, controlling the compressor and the electronic expansion valve to execute a second control process; and if the air outlet temperature difference is within the preset temperature difference interval, controlling the compressor and the electronic expansion valve to respectively keep the current frequency and the current opening unchanged.
In this embodiment, according to the difference in temperature that the air-out difference in temperature probably appears, set up three difference in temperature interval in advance, these three difference in temperature intervals are continuous and do not have the intersection. In the actual process of the air conditioner, the air outlet temperature is difficult to reach the set temperature or is stable at the set temperature and is unchanged, and the air outlet temperature can only be infinitely close to the set temperature, namely the air outlet temperature usually fluctuates around the set temperature. Therefore, a preset temperature difference interval is set, as long as the air outlet temperature difference falls into the preset temperature difference interval, the current air outlet temperature can be considered to reach the air outlet temperature expected by a user, and at the moment, the compressor and the electronic expansion valve are controlled to respectively keep the current frequency and the current opening degree unchanged. When the outlet air temperature difference is in the first temperature difference interval, the difference between the outlet air temperature and the set temperature is larger; when the outlet air temperature difference is in the second temperature difference interval, the difference between the outlet air temperature and the set temperature is smaller; when the outlet air temperature difference is within the preset temperature difference interval, the outlet air temperature reaches the outlet air temperature expected by the user.
Like this, can be according to the difference in temperature interval that the air-out difference in temperature was located, select the control process of compressor and electronic expansion valve, realize distinguishing regulation air-out temperature, when avoiding the regulating power degree to be the same all the time, air-out temperature is difficult to be stabilized in presetting the difference in temperature interval to accuracy and reliability when guarantee regulation air-out temperature.
Optionally, as shown in fig. 4, the first control process includes:
s410, controlling the compressor to adjust the running frequency towards the direction that the outlet air temperature is close to the set temperature;
the control method comprises the steps that the compressor is controlled to adjust the running frequency towards the direction that the outlet air temperature approaches the set temperature, namely, if the outlet air temperature approaches the set temperature by increasing the frequency of the compressor, the increase of the frequency of the compressor is to adjust the running frequency of the compressor towards the direction that the outlet air temperature approaches the set temperature; on the contrary, if the outlet air temperature can be close to the set temperature by reducing the compressor frequency, reducing the compressor frequency is to adjust the compressor operation frequency towards the outlet air temperature close to the set temperature.
Step S420, judging whether the current air outlet temperature difference is in a second temperature difference interval;
step S430, if not, jumping to step S410, if yes, controlling the electronic expansion valve to adjust the opening degree towards the direction of the outlet air temperature approaching the set temperature at a preset rate until the outlet air temperature difference is within the preset temperature difference interval.
Because the change of compressor operating frequency is great to the output influence of refrigerant, and the change of electronic expansion valve aperture is more slight to the output influence of refrigerant, so when the air-out difference in temperature falls into first difference in temperature interval, explain the difference between air-out temperature and the settlement temperature great, can be preferential this moment to adjust the operating frequency of compressor, make the air-out temperature draw close to the settlement temperature fast, when the air-out difference in temperature falls into the second difference in temperature interval, explain the difference between air-out temperature and the settlement temperature less, can make the air-out temperature draw close to the settlement temperature slowly through the aperture of fine setting electronic expansion valve this moment. In this embodiment, when the air conditioner reaches stable operation after starting, the air outlet temperature difference detected at first is located in the first temperature difference interval, that is, the difference between the air outlet temperature and the set temperature is large, after the operating frequency of the compressor is adjusted toward the direction where the air outlet temperature is close to the set temperature, the difference between the air outlet temperature and the set temperature is rapidly reduced, at this time, whether the current air outlet temperature difference is located in the second temperature difference interval is determined, if yes, the electronic expansion valve is controlled to adjust the opening degree, so as to further reduce the difference between the air outlet temperature and the set temperature, until the air outlet temperature difference is located in the preset temperature difference interval, at this time, the compressor keeps the current operating frequency unchanged, and the electronic expansion valve keeps the current opening degree unchanged.
Like this, when the air-out difference in temperature is great, the operating frequency that can prior regulation compressor makes the air-out temperature draw close to setting for the temperature fast, and after the air-out difference in temperature reduces gradually, rethread fine setting electronic expansion valve's aperture makes the air-out temperature slowly draw close to setting for the temperature to realize quick and accurate regulation air-out temperature, not only can shorten and adjust required time, can also ensure the accuracy and the reliability of adjusting the air-out temperature.
Optionally, as shown in fig. 5, step S410 specifically includes:
step S411, judging whether the outlet air temperature difference is in a third temperature difference interval or a fourth temperature difference interval; the temperature difference value of the third temperature difference interval is larger than that of the fourth temperature difference interval;
step S412, if the outlet air temperature difference is in the third temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature close to the set temperature direction at the first speed, and if the outlet air temperature difference is in the fourth temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature close to the set temperature direction at the second speed; wherein the first rate is greater than the second rate.
In this embodiment, divide into these two parts of third difference in temperature interval and fourth difference in temperature interval with first difference in temperature interval, and the difference in temperature value in the third difference in temperature interval is greater than the difference in temperature value in the fourth difference in temperature interval, when the difference in air-out temperature falls into the third difference in temperature interval, explain that the difference between air-out temperature and the set temperature is very big, the compressor is close to the set temperature direction and adjusts the operating frequency towards air-out temperature with higher first rate, and when the difference in air-out temperature falls into the fourth difference in temperature interval, explain that the difference between air-out temperature and the set temperature is less, the compressor is close to the set temperature direction and adjusts the operating frequency towards air-out temperature with lower second rate.
Therefore, the time required by the air outlet temperature reaching the set temperature can be further shortened, and the efficiency of the air conditioner in adjusting the air outlet temperature is further improved.
Optionally, the second control process includes:
and step S510, controlling the compressor to maintain the current running frequency unchanged, and controlling the electronic expansion valve to adjust the opening degree towards the direction that the outlet air temperature approaches the set temperature at a preset speed until the outlet air temperature difference is within a preset temperature difference interval.
In this embodiment, when the air conditioner reaches a stable operation after being started, the detected outlet air temperature difference is within the second temperature difference interval, that is, the difference between the outlet air temperature and the set temperature is small, at this time, only the electronic expansion valve needs to be controlled to adjust the opening degree towards the outlet air temperature in the direction close to the set temperature at the preset speed, and the difference between the outlet air temperature and the set temperature is slowly reduced until the outlet air temperature difference is within the preset temperature difference interval, at this time, the compressor keeps the current operation frequency unchanged, and the electronic expansion valve keeps the current opening degree unchanged.
Therefore, when the difference between the air outlet temperature and the set temperature is small, the air outlet temperature can be slowly closed to the set temperature by adjusting the opening degree of the electronic expansion valve, and the reliability of adjusting the air outlet temperature is further guaranteed.
Assuming that the set temperature is T1 and the outlet air temperature is T2, the outlet air temperature difference Δ T is | T1-T2 |. The air-out temperature T2 is generally around 13 ℃ during cooling of the air conditioner, and the air-out temperature T2 is generally around 40 ℃ during heating. The difference between the set temperature and the air outlet temperature can reach-8 ℃ at the lowest and 15 ℃ at the highest. In this example, the first temperature difference interval was set to (3 ℃ C., 15 ℃ C.), the second temperature difference interval was set to (0.5 ℃ C., 3 ℃ C.), the preset temperature difference interval was set to [0 ℃ C., 0.5 ℃ C. ], the third temperature difference interval was set to (8 ℃ C., 15 ℃ C. ], the fourth temperature difference interval was set to (3 ℃ C., 8 ℃ C. ]), the first rate was set to 2Hz/min, the second rate was set to 1Hz/min, and the preset frequency was set to 20 Pls/min.
In the refrigeration mode, when the air outlet temperature difference delta T is in a third temperature difference interval, namely | T1-T2| is more than 8 ℃ and less than or equal to 15 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the compressor is controlled to increase the operating frequency at the rate of 2Hz per minute so as to rapidly reduce the air outlet temperature; if the outlet air temperature T2 is lower than the set temperature T1, the compressor is controlled to decrease the operating frequency at a rate of 2Hz per minute to rapidly increase the outlet air temperature T2. When the air outlet temperature difference delta T is in a fourth temperature difference interval, namely the temperature T is more than 3 ℃ and less than | T1-T2|, and is less than or equal to 8 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the compressor is controlled to increase the operating frequency at the rate of 1Hz per minute so as to rapidly reduce the air outlet temperature T2; if the outlet air temperature T2 is lower than the set temperature T1, the compressor is controlled to decrease the operation frequency at a rate of 1Hz per minute to rapidly increase the outlet air temperature T2. When the air outlet temperature difference delta T is in a second temperature difference interval, namely 0.5 ℃ is more than | T1-T2| and is less than or equal to 3 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the electronic expansion valve is controlled to reduce the opening degree at the rate of 20Pls per minute so as to slowly reduce the air outlet temperature T2; if the outlet air temperature T2 is lower than the set temperature T1, the electronic expansion valve is controlled to increase the opening degree at the rate of 20Pls per minute so as to slowly increase the outlet air temperature T2. When the air outlet temperature difference delta T is positioned in a preset temperature difference interval, namely, the temperature is more than or equal to 0T 1-T2I and less than or equal to 0.5 ℃, the current operation frequency of the compressor is kept unchanged, and the current opening degree of the electronic expansion valve is kept unchanged.
In the heating mode, the flow direction of the refrigerant is opposite to that in the cooling mode, and therefore the control actions of the compressor and the electronic expansion valve are opposite. When the air outlet temperature difference delta T is in a third temperature difference interval, namely | T1-T2| is more than 8 ℃ and less than or equal to 15 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the compressor is controlled to reduce the operating frequency at the speed of 2Hz per minute so as to rapidly reduce the air outlet temperature; if the outlet air temperature T2 is lower than the set temperature T1, the compressor is controlled to increase the operating frequency at a rate of 2Hz per minute to rapidly increase the outlet air temperature T2. When the air outlet temperature difference delta T is in a fourth temperature difference interval, namely the temperature T is more than 3 ℃ and less than | T1-T2|, and is less than or equal to 8 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the compressor is controlled to reduce the operation frequency at the rate of 1Hz per minute so as to rapidly reduce the air outlet temperature T2; if the outlet air temperature T2 is lower than the set temperature T1, the compressor is controlled to increase the operating frequency at a rate of 1Hz per minute to rapidly increase the outlet air temperature T2. When the air outlet temperature difference delta T is in a second temperature difference interval, namely 0.5 ℃ is more than | T1-T2| and is less than or equal to 3 ℃, if the air outlet temperature T2 is higher than the set temperature T1, the electronic expansion valve is controlled to increase the opening at the rate of 20Pls per minute so as to slowly reduce the air outlet temperature T2; if the outlet air temperature T2 is lower than the set temperature T1, the electronic expansion valve is controlled to reduce the opening degree at the rate of 20Pls per minute so as to slowly increase the outlet air temperature T2. When the outlet air temperature difference delta T is positioned in a preset temperature difference interval, namely, the temperature is more than or equal to 0T 1-T2 and less than or equal to 0.5 ℃, the current operation frequency of the compressor is kept unchanged, and the current opening degree of the electronic expansion valve is kept unchanged.
The present embodiment further provides a computer-readable storage medium, which stores instructions, and when the instructions are loaded and executed by a processor, the method for controlling an outlet air temperature according to any one of the above embodiments is implemented.
Technical solution of the embodiments of the present invention may be substantially implemented or a part or all of the technical solution or a part of the technical solution contributing to the prior art may be embodied in a form of a software product stored in a storage medium, and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
According to the air outlet temperature control method, the operation frequency of the compressor and the opening degree of the electronic expansion valve are adjusted according to the air outlet temperature and the set temperature, so that the air outlet temperature of the air conditioner can be adjusted, the use requirement of a user on the air conditioner can be met, the air outlet temperature of the air conditioner can better meet the actual temperature requirement of the user, discomfort can not be easily caused even if the air conditioner is directly blown, and the air outlet comfort of the air conditioner is improved.
As shown in fig. 6, the present embodiment further provides an outlet air temperature control device, including a compressor 10 and an indoor unit 20 provided with an electronic expansion valve 30, and further including:
an obtaining unit 40, configured to obtain an air outlet temperature at an air outlet of the indoor unit 20 and a set temperature of the indoor unit 20;
and a control unit 50 for adjusting the operation frequency of the compressor 10 and the opening degree of the electronic expansion valve 30 according to the outlet air temperature and the set temperature.
Like this, obtain the air-out temperature of indoor set 20 air outlet department and the settlement temperature of indoor set 20 through obtaining unit 40, control unit 50 is according to air-out temperature and settlement temperature, control compressor 10 adjusts the operating frequency, electronic expansion valve 30 adjusts the aperture, make the air-out temperature of air conditioner adjustable, can satisfy the user demand to the air conditioner, let the air-out temperature of air conditioner accord with the temperature that the user actually needs more, even directly blow also difficult arouses discomfort, the travelling comfort of the air-out of air conditioner has been improved.
Optionally, the obtaining unit 40 includes an air outlet temperature sensing package and a receiver arranged at the air outlet of the indoor unit 20, the receiver may be a remote controller or a mobile phone of a user, and the user sets a desired air outlet temperature through the remote controller or the mobile phone.
Optionally, the control unit 50 is further configured to control the compressor 10 to operate at a preset frequency for a preset time period.
Thus, when the indoor unit 20 is turned on, and the operating frequency of the compressor 10 is stabilized, the obtaining unit 40 performs the operation of obtaining the outlet air temperature and the set temperature, so that the compressor 10 and the electronic expansion valve 30 can be stably adjusted, and the accuracy and the reliability of adjusting the outlet air temperature are improved.
Alternatively, as shown in fig. 7, the control unit 50 includes:
the calculation module 51 is used for determining the air outlet temperature difference according to the air outlet temperature and the set temperature; the outlet air temperature difference is an absolute value of a difference value between the set temperature and the outlet air temperature;
the judging module 52 is configured to judge whether the outlet air temperature difference is in the first temperature difference interval, the second temperature difference interval, or the preset temperature difference interval; the temperature difference value of any one of the first temperature difference intervals is greater than that of any one of the second temperature difference intervals, and the temperature difference value of any one of the second temperature difference intervals is greater than that of any one of the preset temperature difference intervals;
the first control module 53 is configured to control the compressor 10 and the electronic expansion valve 30 to execute a first control process if the outlet air temperature difference is within the first temperature difference interval;
the second control module 54 is configured to control the compressor 10 and the electronic expansion valve 30 to execute a second control process if the outlet air temperature difference is within a second temperature difference interval;
and a third control module 55, configured to control the compressor 10 and the electronic expansion valve 30 to respectively keep the current frequency and the current opening constant if the outlet air temperature difference is within the preset temperature difference range.
Like this, control unit 50 can select compressor 10 and electronic expansion valve 30's control process according to the difference in temperature interval that the air-out difference in temperature was located, realizes distinguishing regulation air-out temperature, when avoiding the regulating power degree the same all the time, air-out temperature is difficult to be stabilized in presetting the difference in temperature interval to accuracy and reliability when guaranteeing the regulation air-out temperature.
The present embodiment also provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the outlet air temperature control method according to any one of the above descriptions.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The method for controlling the air outlet temperature is characterized by comprising the following steps of:
s200, acquiring an air outlet temperature and a set temperature;
s300, adjusting the running frequency of a compressor and the opening degree of an electronic expansion valve according to the air outlet temperature and the set temperature;
wherein the step S300 includes:
s310, determining an air outlet temperature difference according to the air outlet temperature and the set temperature; the outlet air temperature difference is the absolute value of the difference between the set temperature and the outlet air temperature;
s320, judging whether the outlet air temperature difference is in a first temperature difference interval, a second temperature difference interval or a preset temperature difference interval; the temperature difference value of any one of the first temperature difference intervals is greater than that of any one of the second temperature difference intervals, and the temperature difference value of any one of the second temperature difference intervals is greater than that of any one of the preset temperature difference intervals;
s330, if the outlet air temperature difference is in the first temperature difference interval, controlling the compressor and the electronic expansion valve to execute a first control process; if the outlet air temperature difference is located in the second temperature difference interval, controlling the compressor and the electronic expansion valve to execute a second control process; if the air outlet temperature difference is within the preset temperature difference interval, controlling the compressor and the electronic expansion valve to respectively keep the current frequency and the current opening constant;
the first control process includes:
s410, controlling the compressor to adjust the running frequency towards the direction that the outlet air temperature is close to the set temperature;
s420, judging whether the current air outlet temperature difference is in the second temperature difference interval;
s430, if not, jumping to the step S410, if yes, controlling the electronic expansion valve to adjust the opening degree towards the direction of the outlet air temperature close to the set temperature at a preset speed rate until the outlet air temperature difference is within the preset temperature difference interval;
the second control process includes:
and S510, controlling the electronic expansion valve to adjust the opening degree towards the direction that the air outlet temperature is close to the set temperature at a preset speed until the air outlet temperature difference is within the preset temperature difference range.
2. The method for controlling the outlet air temperature according to claim 1, wherein the step S200 of obtaining the outlet air temperature and the set temperature further includes:
and S100, controlling the compressor to operate at a preset frequency for a preset time.
3. The method for controlling outlet air temperature according to claim 1, wherein the step S410 of controlling the compressor to adjust the operating frequency in the direction in which the outlet air temperature approaches the set temperature includes:
s411, judging whether the outlet air temperature difference is in a third temperature difference interval or a fourth temperature difference interval; the third temperature difference interval and the fourth temperature difference interval do not intersect with each other, the set of the third temperature difference interval and the fourth temperature difference interval is equal to the first temperature difference interval, and any temperature difference value in the third temperature difference interval is larger than any temperature difference value in the fourth temperature difference interval;
s412, if the outlet air temperature difference is located in the third temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature to be close to the set temperature direction at a first speed, and if the outlet air temperature difference is located in the fourth temperature difference interval, controlling the compressor to adjust the operation frequency towards the outlet air temperature to be close to the set temperature direction at a second speed; wherein the first rate is greater than the second rate.
4. The utility model provides an air-out temperature control device, its characterized in that includes compressor (10) and indoor set (20) that is provided with electronic expansion valve (30), still includes:
an acquisition unit (40) for acquiring an air outlet temperature at an air outlet of the indoor unit (20) and a set temperature of the indoor unit (20);
a control unit (50) for adjusting the operation frequency of the compressor (10) and the opening degree of the electronic expansion valve (30) according to the outlet air temperature and the set temperature;
the control unit (50) comprises:
the calculation module (51) is used for determining the air outlet temperature difference according to the air outlet temperature and the set temperature; the outlet air temperature difference is the absolute value of the difference between the set temperature and the outlet air temperature;
the judging module (52) is used for judging whether the outlet air temperature difference is in a first temperature difference interval, a second temperature difference interval or a preset temperature difference interval; wherein, there is no intersection between the first temperature difference interval, the second temperature difference interval and the preset temperature difference interval;
the first control module (53) is used for controlling the compressor (10) and the electronic expansion valve (30) to execute a first control process if the outlet air temperature difference is located in the first temperature difference interval;
the second control module (54) is used for controlling the compressor (10) and the electronic expansion valve (30) to execute a second control process if the outlet air temperature difference is located in the second temperature difference interval;
the third control module (55) is used for controlling the compressor (10) and the electronic expansion valve (30) to respectively keep the current frequency and the current opening unchanged if the outlet air temperature difference is within the preset temperature difference interval;
wherein the first control process includes:
controlling the compressor to adjust the running frequency towards the direction that the outlet air temperature is close to the set temperature;
judging whether the current air outlet temperature difference is located in the second temperature difference interval or not;
if not, controlling the compressor to adjust the operation frequency towards the direction that the outlet air temperature is close to the set temperature, and if so, controlling the electronic expansion valve to adjust the opening towards the direction that the outlet air temperature is close to the set temperature at a preset speed until the outlet air temperature difference is within the preset temperature difference range;
the second control process includes:
and controlling the electronic expansion valve to adjust the opening degree towards the direction that the air outlet temperature is close to the set temperature at a preset speed until the air outlet temperature difference is within the preset temperature difference range.
5. An outlet air temperature control device according to claim 4, characterized in that the control unit (50) is further configured to control the compressor (10) to operate at a preset frequency for a preset time period.
6. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method according to any one of claims 1 to 3.
7. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the method according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717892.XA CN110470032B (en) | 2019-08-05 | 2019-08-05 | Air outlet temperature control method and device, air conditioner and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717892.XA CN110470032B (en) | 2019-08-05 | 2019-08-05 | Air outlet temperature control method and device, air conditioner and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110470032A CN110470032A (en) | 2019-11-19 |
| CN110470032B true CN110470032B (en) | 2021-09-21 |
Family
ID=68510014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910717892.XA Active CN110470032B (en) | 2019-08-05 | 2019-08-05 | Air outlet temperature control method and device, air conditioner and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110470032B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864422B (en) * | 2019-12-02 | 2021-10-22 | 宁波奥克斯电气股份有限公司 | Control method and device of fresh air conditioner, fresh air conditioner and storage medium |
| CN111365821A (en) * | 2020-03-24 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Control method for blowing out comfortable air by air conditioner and air conditioner |
| CN111649484A (en) * | 2020-05-25 | 2020-09-11 | 江苏亚拓新能源科技有限公司 | Frequency conversion control method for heat pump water heater or heat pump water cooling and heating machine |
| CN111912082A (en) * | 2020-09-07 | 2020-11-10 | 云森威尔智能环境（深圳）有限公司 | Flexible air outlet control method for air conditioner |
| CN112856581A (en) * | 2020-12-31 | 2021-05-28 | 广东积微科技有限公司 | Variable-frequency fresh air system and control method thereof |
| CN113685913B (en) * | 2021-08-02 | 2023-03-21 | 重庆海尔空调器有限公司 | Control method of fresh air conditioner |
| CN113959051B (en) * | 2021-10-08 | 2023-08-15 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006483A (en) * | 2013-02-21 | 2014-08-27 | 广东美的制冷设备有限公司 | Method for controlling air conditioner |
| CN105387562A (en) * | 2015-11-17 | 2016-03-09 | 珠海格力电器股份有限公司 | Air conditioner and control method and device of air conditioner |
| CN106871358A (en) * | 2017-02-28 | 2017-06-20 | 青岛海尔空调器有限总公司 | Temperature of outlet air of air conditioner control method and device |
| WO2018125172A1 (en) * | 2016-12-29 | 2018-07-05 | Ecoer Inc. | A method for detecting clog in ac system heat exchange or air filter |
| CN108302722A (en) * | 2017-07-17 | 2018-07-20 | 珠海格力电器股份有限公司 | Air-conditioning and its air-conditioning part duty control method and device |
| CN108413587A (en) * | 2018-03-09 | 2018-08-17 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device and computer readable storage medium |
| CN108731224A (en) * | 2018-08-31 | 2018-11-02 | 广东美的制冷设备有限公司 | Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system |
| CN108800456A (en) * | 2018-04-18 | 2018-11-13 | 广东美的制冷设备有限公司 | Refrigeration control method, device, refrigeration equipment and computer readable storage medium |
| CN109323397A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN109323377A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and control device |
-
2019
- 2019-08-05 CN CN201910717892.XA patent/CN110470032B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006483A (en) * | 2013-02-21 | 2014-08-27 | 广东美的制冷设备有限公司 | Method for controlling air conditioner |
| CN105387562A (en) * | 2015-11-17 | 2016-03-09 | 珠海格力电器股份有限公司 | Air conditioner and control method and device of air conditioner |
| WO2018125172A1 (en) * | 2016-12-29 | 2018-07-05 | Ecoer Inc. | A method for detecting clog in ac system heat exchange or air filter |
| CN106871358A (en) * | 2017-02-28 | 2017-06-20 | 青岛海尔空调器有限总公司 | Temperature of outlet air of air conditioner control method and device |
| CN108302722A (en) * | 2017-07-17 | 2018-07-20 | 珠海格力电器股份有限公司 | Air-conditioning and its air-conditioning part duty control method and device |
| CN108413587A (en) * | 2018-03-09 | 2018-08-17 | 广东美的制冷设备有限公司 | Air conditioner and its control method, control device and computer readable storage medium |
| CN108800456A (en) * | 2018-04-18 | 2018-11-13 | 广东美的制冷设备有限公司 | Refrigeration control method, device, refrigeration equipment and computer readable storage medium |
| CN108731224A (en) * | 2018-08-31 | 2018-11-02 | 广东美的制冷设备有限公司 | Control method, device, equipment and the fixed frequency air conditioner system of fixed frequency air conditioner system |
| CN109323397A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN109323377A (en) * | 2018-09-30 | 2019-02-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110470032A (en) | 2019-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110470032B (en) | Air outlet temperature control method and device, air conditioner and computer readable storage medium | |
| CN111795466B (en) | Air conditioner heating and air-releasing control method and device, air conditioner and computer readable storage medium | |
| CN108413587B (en) | Air conditioner, control method and device thereof, and computer-readable storage medium | |
| CN108180605B (en) | Automatic non-wind-sensing control method and device and computer readable storage medium | |
| CN107514784B (en) | Constant speed air conditioner, control method thereof and computer readable storage medium | |
| CN108917117B (en) | Air conditioner and control method and device thereof | |
| CN110030707B (en) | Air conditioning system adjusting method, air conditioner and computer readable storage medium | |
| CN105241029A (en) | Operation control method for radiation air conditioner | |
| CN101769584A (en) | Method for intelligently controlling frequency of variable-frequency air-conditioner | |
| CN102954555A (en) | Method for controlling opening of expansion valve | |
| CN103486689A (en) | Air conditioner control method and device | |
| CN110940064B (en) | Control method for operating frequency of air conditioner | |
| CN110925959B (en) | Air conditioner energy-saving control method and device, air conditioner and storage medium | |
| CN111536677B (en) | Air conditioner oil return control method, air conditioner and readable storage medium | |
| CN108644968B (en) | Control method for air conditioning system | |
| CN108548269B (en) | Control method of air conditioner | |
| EP3910256B1 (en) | Air conditioning and ventilation system | |
| CN110220289A (en) | The control method and air conditioner of air conditioner | |
| CN106052215B (en) | The control method of outdoor machine of air-conditioner electronic expansion valve | |
| CN109323422B (en) | Air conditioner and control method and device thereof | |
| CN108592353B (en) | Control method for air conditioning system | |
| CN108826599B (en) | Control method for air conditioning system | |
| CN113719964A (en) | Air conditioner control method and device and air conditioner | |
| WO2023124011A1 (en) | Method and apparatus for controlling electronic expansion valve, air conditioner and storage medium | |
| CN110425687B (en) | Refrigerant adjusting method, refrigerant adjusting controller and air conditioning system |
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 |