CN115978754A - Control method and control device of air conditioner and air conditioner - Google Patents
Control method and control device of air conditioner and air conditioner Download PDFInfo
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- CN115978754A CN115978754A CN202211525766.2A CN202211525766A CN115978754A CN 115978754 A CN115978754 A CN 115978754A CN 202211525766 A CN202211525766 A CN 202211525766A CN 115978754 A CN115978754 A CN 115978754A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005057 refrigeration Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 21
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 31
- 238000005265 energy consumption Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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 provides a control method and a control device of an air conditioner and the air conditioner, wherein the control method comprises the following steps: when the outdoor environment temperature of outdoor air is changed from a first outdoor environment temperature to a second outdoor environment temperature within a first preset time period, judging whether the second outdoor environment temperature is lower than a preset temperature or not; if yes, controlling the air conditioner to operate a novel heat exchange function; wherein the novel heat exchange function comprises introducing the outdoor air from an outdoor environment to an indoor environment. The invention solves the technical problem of energy waste caused by insufficient use of fresh air for cooling.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control device of an air conditioner and the air conditioner.
Background
At present, the situation that a fresh air fan is configured in a mainstream multi-split system is less, and users build an independent fresh air system more to ensure the indoor air quality. In actual use, considering the air conditioning effect and the energy-saving requirement, or adopting centralized control for the control of the fresh air system, the user is inconvenient to adjust, and the situation that the multi-split air system is independently opened and the fresh air system is closed usually exists.
In the transition season, when the fresh air system can meet the demand, the user also habitually starts the air conditioner. Or after rainfall and wind blowing in summer, when the outdoor temperature suddenly drops, the indoor air is not circulated in time, the multi-split air system still keeps the running state, so that fresh air is not fully used for cooling, and energy is wasted.
Disclosure of Invention
The invention solves the technical problem of energy waste caused by insufficient use of fresh air for cooling.
In order to solve the above problems, the present invention provides a control method of an air conditioner, the control method comprising: when the outdoor environment temperature of outdoor air is changed from a first outdoor environment temperature to a second outdoor environment temperature within a first preset time period, judging whether the second outdoor environment temperature is lower than a preset temperature or not; if yes, controlling the air conditioner to operate a novel heat exchange function; wherein the novel heat exchange function comprises introducing the outdoor air from an outdoor environment to an indoor environment.
Compared with the prior art, the technical scheme has the following technical effects: the air conditioner is, for example, a multi-split air conditioner, and in combination with the actual use condition of the multi-split air conditioner, the first preset time period is, for example, a time period corresponding to sudden drop of outdoor temperature after rainfall or wind blowing in summer, that is, the first outdoor environment temperature is suddenly dropped to the second outdoor environment temperature, and the preset temperature can be used for representing the temperature comfortable for human body feeling; on one hand, the novel heat exchange function adopted by the invention can flexibly adjust the operation function of the multi-split air conditioner under the condition of dealing with the sudden change weather, and the natural wind cooling mode replaces the multi-split air conditioner operation refrigeration function for cooling, so that the natural resources are fully utilized, and the energy consumption of the multi-split air conditioner is reduced; on the other hand, the invention can also play a role in ventilating the indoor environment under the condition of keeping good heat exchange effect between the indoor environment and the outdoor environment, thereby ensuring that the air in the indoor environment is fresh while the user enjoys comfort.
In one example of the present invention, the controlling the operation of the air conditioner to perform the novel heat exchange function includes: and controlling the inner machine of the air conditioner to run a mechanical air supply function.
Compared with the prior art, the technical scheme has the following technical effects: for example, the mechanical air supply function includes, for example, an air supply action performed by an inner fan driven by an inner machine. Therefore, the air supply effect of the inner fan can improve the airflow velocity of the indoor environment, so that the heat exchange efficiency between the indoor environment and the outdoor environment is improved, the cooling of the indoor environment is accelerated, and a user can feel the refrigerating effect in a short time.
In an example of the present invention, the controlling the indoor unit of the air conditioner to operate the mechanical blowing function includes: acquiring the indoor environment temperature; controlling the internal machine to operate according to a preset wind gear according to the indoor environment temperature and/or the second outdoor environment temperature; and controlling the inner machine to operate a single air outlet function.
Compared with the prior art, the technical scheme has the following technical effects: the size of presetting the wind shelves is relevant with second outdoor ambient temperature and indoor ambient temperature, and specifically speaking, if it is when the user is preparing to open the multi-split air conditioner, the temperature of indoor environment is higher this moment, can for example take indoor ambient temperature to be 38 ℃, then, when corresponding at first preset time quantum, in order to cool down the indoor environment fast and handle, then take great wind shelves to control the multi-split air conditioner and only operate single air-out function, only cool down the indoor environment through the difference in temperature between indoor environment and the outdoor environment and handle. Therefore, in brief, under a certain condition, in order to improve the cooling effect on the indoor environment, on the premise of controlling the multi-split air conditioner not to start the refrigeration function, the higher the indoor environment temperature is, the larger the preset damper is selected. In addition, when the temperature difference value that forms between second outdoor ambient temperature and the preset temperature is great, then also need adjust the size of presetting the windshield, avoid setting preset the windshield too big and lead to the temperature of indoor environment suddenly to descend and lead to the user to feel the undercooling, and reduce user experience.
In an example of the present invention, the controlling the air conditioner to operate the novel heat exchange function includes: when Ts-Tn is more than or equal to a, controlling the internal machine to stop and controlling the air conditioner to operate a fresh air function; when Ts-Tn is less than a, controlling the air conditioner to stop operating the fresh air function; wherein Ts is the preset temperature, tn is the indoor environment temperature, and a is a preset temperature value.
Compared with the prior art, the technical scheme has the following technical effects: specifically, a can be 2 ℃, so that when Ts-Tn is more than or equal to 2 ℃, the indoor environment temperature is low at the moment, namely the indoor environment temperature reaches a value which makes a human body feel comfortable, if the air conditioner is started to have a single air outlet function, the flow velocity of indoor environment airflow is aggravated, namely, the heat exchange between the indoor environment and the outdoor environment is accelerated, the supercooling condition is generated, and then the speed of reducing the indoor environment temperature is reduced by controlling the stop of the indoor unit; on the contrary, when Ts-Tn is less than 2 ℃, the indoor environment temperature is too low, and under the condition, on the basis of stopping the indoor unit, the fresh air function can be stopped to avoid the indoor environment from being cooled again, so that discomfort in the use process of a user is avoided.
In an example of the present invention, the determining whether the second outdoor environment temperature is lower than a preset temperature includes: if not, controlling the air conditioner to operate a refrigeration function; and judging whether to control the air conditioner to operate the fresh air function or not according to the relation between the second outdoor environment temperature and the indoor environment temperature.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: for example, when the second outdoor ambient temperature is higher than predetermineeing the temperature, because predetermineeing the temperature and can understand as making the human temperature that feels comfortable, can think this moment if open novel heat transfer function again, although can play certain cooling effect to the indoor environment, but finally make the indoor environment equal with the second outdoor ambient temperature, also can not make the indoor ambient temperature keep equal with predetermineeing the temperature, in so, under this condition, then need control the air conditioner and open the refrigeration function, just can make the indoor ambient temperature reduce to predetermineeing the temperature, in order to improve the heat exchange efficiency of air conditioner.
In an embodiment of the present invention, the determining whether to control the air conditioner to operate the fresh air function according to the relationship between the second outdoor ambient temperature and the indoor ambient temperature includes: if Tn is larger than Tw, controlling the air conditioner to operate the fresh air function; and/or controlling the air conditioner to stop operating the fresh air function if Tn is less than or equal to Tw; where Tw is the outdoor ambient temperature.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: if Tn is more than Tw, the fresh air function of the air conditioner is started, so that the auxiliary cooling function can be used for accelerating the cooling of the indoor environment temperature, and the energy consumption is reduced compared with the case that the air conditioner independently starts the cooling function when the heat exchange efficiency of the air conditioner is ensured in a short time; when Tn is less than Tw, the fresh air function does not need to be started, and particularly, if the fresh air function is started, the rising of the indoor environment temperature is aggravated or the heat exchange efficiency under the operation refrigeration function is reduced.
In an example of the present invention, the controlling the air conditioner to operate the novel heat exchange function includes: when the air conditioner keeps running, judging whether the time that the air conditioner does not run the novel heat exchange function meets a first preset time; if so, controlling the accumulated time of the air conditioner for starting the fresh air function to meet a second preset time.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the air conditioner operation heat transfer function is the air current inner loop that makes the indoor environment, also does not take a breath with outdoor environment, and when long-term operation refrigeration or heating function, then can make the carbon dioxide increase in the indoor environment and make the air of indoor environment muddy, then, through making open the clean of new trend function reaching the second preset time in order to ensure the room air.
In an example of the present invention, the controlling the cumulative time of the air conditioner for starting the fresh air function to satisfy the second preset time includes: and when the indoor environment temperature is lower than the outdoor environment temperature, controlling the air conditioner to stop operating the fresh air function and operate the fresh air function to alternately operate.
Compared with the prior art, the technical scheme has the following technical effects: by discontinuously opening the fresh air function, the phenomenon that the output fluctuation of the air conditioner is larger and the comfort of a user is reduced due to overlarge heat load caused by introducing the fresh air of the outdoor environment into the indoor environment is avoided.
In an example of the present invention, the controlling the air conditioner to alternately operate when the fresh air function is stopped and the fresh air function is operated includes: when the air conditioner controls to start the fresh air function, the frequency of a compressor of the air conditioner is controlled to be increased from f to f1, and then the fresh air function is controlled to be closed; when the frequency of the compressor is reduced from f + f1 to f2, the fresh air function is controlled to be started; wherein f1 > f2.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: further ensuring that the output of the air conditioner remains stable to ensure user comfort.
In one example of the present invention, the first preset time period is set as a night time period; and after the accumulated time for controlling the air conditioner to start the fresh air function meets second preset time, if the air conditioner is not operated, controlling the air conditioner to start the fresh air function.
Compared with the prior art, the technical scheme has the following technical effects: when the ventilation function between the indoor environment and the outdoor environment is considered, the heat exchange between the indoor environment and the outdoor environment is ensured.
In an example of the present invention, the controlling the air conditioner to start a fresh air function includes: acquiring indoor ambient temperature and outdoor ambient temperature; if the outdoor environment temperature is lower than the indoor environment temperature and the indoor environment temperature is higher than the average indoor environment temperature, controlling the air conditioner to start a fresh air function; and/or controlling the air conditioner to stop operating the fresh air function if the outdoor environment temperature is equal to the indoor environment temperature or the indoor environment temperature is equal to the average indoor environment temperature; wherein the average indoor temperature is an average indoor temperature during the day.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: when the average indoor temperature is equal to the indoor environment temperature at the moment, the fresh air function can be controlled to stop running in order to avoid that the indoor temperature is too low and causes discomfort in subsequent use.
In another aspect, the present invention also provides a control apparatus for an air conditioner, including: the detection module is used for detecting the outdoor environment temperature and the indoor environment temperature; the judging module is used for judging whether the outdoor environment temperature is lower than a preset temperature or not; the control module is used for controlling the air conditioner to operate a novel heat exchange function; wherein the novel heat exchange function comprises introducing the outdoor air from an outdoor environment to an indoor environment.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the technical effects corresponding to the control method in any of the above examples can be achieved, and are not described herein again.
In still another aspect, the present invention further provides an air conditioner, comprising a controller, wherein the controller is configured to execute an executable program to implement the control method in any one of the above examples.
Compared with the prior art, the technical scheme has the following technical effects: technical effects corresponding to the control method in any of the above examples can be achieved, and are not described herein again.
After the technical scheme of the invention is adopted, the following technical effects can be achieved:
(1) On one hand, the novel heat exchange function adopted by the invention can flexibly adjust the operation function of the multi-split air conditioner under the condition of dealing with the sudden change weather, and the natural wind cooling mode replaces the multi-split air conditioner operation refrigeration function for cooling, so that the natural resources are fully utilized, and the energy consumption of the multi-split air conditioner is reduced; on the other hand, the invention can also play a role in ventilating the indoor environment under the condition of keeping good heat exchange effect between the indoor environment and the outdoor environment, thereby ensuring that the air in the indoor environment is fresh while the user enjoys comfort;
(2) The size of the preset air damper is related to the second outdoor environment temperature and the indoor environment temperature, specifically, if the user is preparing to start the multi-split air conditioner, the temperature of the indoor environment is higher at the moment, for example, the indoor environment temperature can be 38 ℃, accordingly, when the multi-split air conditioner is used for a first preset time period, in order to rapidly cool the indoor environment, the larger air damper is taken, the multi-split air conditioner is controlled to only operate the single air outlet function, and the indoor environment is cooled only through the temperature difference between the indoor environment and the outdoor environment. Therefore, in brief, under a certain condition, in order to improve the cooling effect on the indoor environment, on the premise of controlling the multi-split air conditioner not to start the refrigeration function, the higher the indoor environment temperature is, the larger the preset damper is selected. In addition, when the temperature difference value that forms between second outdoor ambient temperature and the preset temperature is great, then also need to adjust the size of predetermineeing the windshield, avoid the setting predetermine the windshield too big and lead to the temperature shock of indoor environment and lead to the user to feel the undercooling, and reduce user experience.
Drawings
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating module connections of a control device of an air conditioner according to an embodiment of the present invention.
Description of reference numerals:
100-a control device; 10-a detection module; 20-a judging module; 30-control module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
referring to fig. 1, a flowchart of a control method of an air conditioner according to an embodiment of the present invention is shown. The control method includes, for example:
step S1, in a first preset time period, when the outdoor environment temperature of outdoor air is changed from a first outdoor environment temperature to a second outdoor environment temperature, judging whether the second outdoor environment temperature is lower than a preset temperature;
s2, if yes, controlling the air conditioner to operate a novel heat exchange function; wherein the novel heat exchange function includes the introduction of outdoor air from the outdoor environment to the indoor environment.
In one embodiment, the air conditioner is, for example, a multi-split air conditioner, and in combination with the actual use condition of the multi-split air conditioner, the first preset time period is, for example, a time period corresponding to a sudden drop of outdoor temperature after rainfall or wind blowing in summer, that is, a time period corresponding to a sudden drop of outdoor ambient temperature from the first outdoor ambient temperature to the second outdoor ambient temperature, and the preset temperature may be used to indicate a temperature comfortable for human body.
Therefore, before the first preset time period, that is, the first outdoor environment temperature is higher than the preset temperature, it is common that the multi-split air conditioner is controlled to start the refrigeration function, and when the first preset time period is reached, it is required to judge whether the second outdoor environment temperature obtained by the reduction of the first outdoor environment temperature is lower than the preset temperature, and if the second outdoor environment temperature is lower than the preset temperature, the air conditioner is controlled to stop operating the refrigeration function and switch to the operation of the novel heat exchange function, that is, the outdoor environment temperature lower than the preset temperature is met correspondingly at the moment, for example, outdoor air with the second outdoor environment temperature is introduced into the indoor environment, and the novel heat exchange function replaces the traditional refrigeration function to realize the cooling of the indoor environment, on one hand, the novel heat exchange function adopted by the multi-split air conditioner can flexibly adjust the operation function of the multi-split air conditioner under the sudden change weather, and the multi-split air conditioner operation refrigeration function is replaced by a natural wind cooling manner to cool, so that natural resources are fully utilized, and the energy consumption of the multi-split air conditioner is reduced; on the other hand, the invention can also play a role in ventilating the indoor environment under the condition of keeping good heat exchange effect between the indoor environment and the outdoor environment, thereby ensuring that the air in the indoor environment is fresh while the user enjoys comfort.
Preferably, step S2 specifically includes:
and S21, controlling the internal unit of the air conditioner to run the mechanical air supply function. For example, the mechanical air supply function includes, for example, an air supply action performed by an inner fan driven by an inner machine. Therefore, the air supply effect of the inner fan can improve the airflow velocity of the indoor environment, so that the heat exchange efficiency between the indoor environment and the outdoor environment is improved, the cooling of the indoor environment is accelerated, and a user can feel the refrigerating effect in a short time.
Preferably, step S21 specifically includes:
step S211, acquiring indoor environment temperature;
step S212, controlling the internal machine to operate according to a preset wind gear according to the indoor environment temperature and/or the second environment temperature;
and step S213, controlling the inner machine to operate the single air outlet function.
On the basis of the specific example, in another specific example, the size of the preset damper is related to the second outdoor environment temperature and the indoor environment temperature, specifically, if the user is preparing to start the multi-split air conditioner, the temperature of the indoor environment is higher at the moment, for example, the indoor environment temperature can be set to be 38 ℃, then, correspondingly, when the first preset time period is carried out, in order to rapidly cool the indoor environment, the larger damper is taken, the multi-split air conditioner is controlled to only operate the single air outlet function, and the indoor environment is cooled only through the temperature difference between the indoor environment and the outdoor environment.
Therefore, in brief, under a certain condition, in order to improve the cooling effect on the indoor environment, on the premise of controlling the multi-split air conditioner not to start the refrigeration function, the higher the indoor environment temperature is, the larger the preset damper is selected. In addition, when the temperature difference value that forms between second outdoor ambient temperature and the preset temperature is great, then also need adjust the size of presetting the windshield, avoid setting preset the windshield too big and lead to the temperature of indoor environment suddenly to descend and lead to the user to feel the undercooling, and reduce user experience.
Therefore, when the above-mentioned high indoor ambient temperature and the low second outdoor ambient temperature occur at the same time, the set wind level can be operated according to the medium wind level.
Preferably, step S2 specifically includes:
step S221, when Ts-Tn is larger than or equal to a, controlling the internal machine to stop, and controlling the air conditioner to run a fresh air function;
step S222, when Ts-Tn is less than a, controlling the air conditioner to stop running the fresh air function; wherein Ts is a preset temperature, tn is an indoor environment temperature, and a is a preset temperature value.
In a specific example, in combination with the contents of the above specific examples, a may be 2 ℃, so that when Ts-Tn is greater than or equal to 2 ℃, it means that the indoor environment temperature is low at this time, that is, the indoor environment temperature has reached a level that makes a human body feel comfortable, and if the air conditioner is enabled to start a single air-out function, the flow rate of the indoor environment airflow is increased, that is, the heat exchange between the indoor environment and the outdoor environment is accelerated, so that the above-mentioned supercooling condition occurs, and then the rate of reducing the indoor environment temperature is reduced by controlling the shutdown of the indoor unit; on the contrary, when Ts-Tn is less than 2 ℃, the indoor environment temperature is too low, and under the condition, on the basis of stopping the indoor unit, the fresh air function can be stopped to avoid the indoor environment from being cooled again, so that discomfort in the use process of a user is avoided.
Preferably, step S1 specifically includes:
s11, if not, controlling the air conditioner to operate a refrigeration function;
and S12, judging whether to control the air conditioner to operate the fresh air function or not according to the relation between the second outdoor environment temperature and the indoor environment temperature.
Specifically, when the second outdoor ambient temperature is higher than the preset temperature, on the basis of the above-mentioned setting understanding about the preset temperature, it can be considered that if the novel heat exchange function is opened again at this moment, although a certain cooling effect can be played to the indoor environment, but finally the indoor environment is made equal to the second outdoor ambient temperature, the indoor ambient temperature can not be made equal to the preset temperature, and then, under this condition, the air conditioner needs to be controlled to open the cooling function, and the indoor ambient temperature can be made to be reduced to the preset temperature, so as to improve the heat exchange efficiency of the air conditioner.
Preferably, step S12 specifically includes:
s13, if Tn is larger than Tw, controlling the air conditioner to operate a fresh air function; and/or the presence of a gas in the gas,
s14, if Tn is not more than Tw, controlling the air conditioner to stop running the fresh air function; where Tw is the outdoor ambient temperature.
Specifically, if Tn is greater than Tw, the fresh air starting function of the air conditioner can assist the refrigeration function to quickly reduce the indoor environment temperature, so that the energy consumption is reduced compared with the case that the refrigeration function is independently started by the air conditioner when the heat exchange efficiency of the air conditioner is ensured in a short time; when Tn is less than Tw, the fresh air function does not need to be started, and particularly, if the fresh air function is started, the rising of the indoor environment temperature is aggravated or the heat exchange efficiency under the operation refrigeration function is reduced.
Preferably, step S2 specifically includes:
step S231, judging whether the time that the air conditioner does not operate the novel heat exchange function meets a first preset time or not when the air conditioner keeps an operating state;
and step S232, if so, controlling the air conditioner to start the accumulated time of the fresh air function to meet a second preset time.
Specifically, it can be understood that the air conditioner operates to perform a heat exchange function to circulate air in an indoor environment, i.e., not to exchange air with an outdoor environment, and when the air conditioner operates for a long time to perform a cooling or heating function, carbon dioxide in the indoor environment is increased and air in the indoor environment is turbid.
Furthermore, if the fresh air supply volume reaches a certain ratio of the indoor volume, the internal air is considered to be the fresh air, and then ventilation is finished. Because the air supply flow of the fresh air function is usually a fixed value, the ventilation time can be calculated.
Preferably, step S232 specifically includes:
and step S233, controlling the air conditioner to alternately operate the fresh air stopping function and the fresh air running function when the indoor environment temperature is lower than the outdoor environment temperature.
Preferably, step 233 specifically includes:
step S2331, when the air conditioner controls to start the fresh air function, the frequency of a compressor of the air conditioner is controlled to be increased from f to f1, and then the fresh air function is controlled to be closed;
step S2332, when the frequency of the compressor is reduced from f + f1 to f2, the fresh air function is controlled to be started; wherein f1 > f2.
In one embodiment, by intermittently turning on the fresh air function, the situation that the output fluctuation of the air conditioner is large and the user comfort is reduced due to the large heat load of introducing the fresh air of the outdoor environment into the indoor environment is avoided, wherein f1 is preferably 3HZ, and f2 is preferably 2HZ. Therefore, under the action of repeating the intermittent fresh air opening function, the total time for operating the fresh air function meets the second preset time, and the heat exchange is finished at the moment.
Preferably, the first preset time is set as a night time period; and after the accumulated time for controlling the air conditioner to start the fresh air function meets the second preset time, if the air conditioner is not operated, controlling the air conditioner to start the fresh air function.
Preferably, the function of controlling the air conditioner to start fresh air comprises:
step S24, acquiring indoor environment temperature and outdoor environment temperature;
step S251, if the outdoor environment temperature is lower than the indoor environment temperature and the indoor environment temperature is higher than the average indoor environment temperature, controlling the air conditioner to start a fresh air function;
and/or step S252, if the outdoor ambient temperature is equal to the indoor ambient temperature or the indoor ambient temperature is equal to the average indoor ambient temperature, controlling the air conditioner to stop operating the fresh air function; wherein the average indoor temperature is an average indoor temperature during the daytime.
In a specific example, the average indoor temperature during the daytime can be obtained by collecting the temperature of the indoor unit at each integral point during 8-18 days, so as to calculate the average indoor temperature and measure the indoor temperature requirement during normal use. In addition, when the average indoor temperature is equal to the indoor environment temperature at the moment, in order to avoid that the indoor temperature is too low and causes discomfort in subsequent use, the fresh air function can be controlled to stop running.
The second embodiment:
referring to fig. 2, a block diagram of a control device 100 of an air conditioner according to a second embodiment of the present invention is shown. Specifically, the control device 100 includes, for example, a detection module 10, a determination module 20, and a control module 30. The detection module 10 is used for detecting the outdoor environment temperature and the indoor environment temperature; the judging module 20 is configured to judge whether the outdoor environment temperature is lower than a preset temperature; the control module 30 is used for controlling the air conditioner to operate a novel heat exchange function; wherein the novel heat exchange function includes the introduction of outdoor air from the outdoor environment to the indoor environment.
Further, this embodiment can achieve the technical effect corresponding to any one of the technical solutions in the first embodiment, which is not described herein again.
Example three:
specifically, the present embodiment can achieve the technical effects corresponding to any one of the technical solutions in the first embodiment, and details of the technical effects are not described herein.
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 (13)
1. A control method of an air conditioner, characterized in that the control method comprises:
when the outdoor environment temperature of outdoor air is changed from a first outdoor environment temperature to a second outdoor environment temperature within a first preset time period, judging whether the second outdoor environment temperature is lower than a preset temperature or not;
if yes, controlling the air conditioner to operate a novel heat exchange function;
wherein the novel heat exchange function comprises introducing the outdoor air from an outdoor environment to an indoor environment.
2. The control method according to claim 1, wherein the controlling the air conditioner to operate the novel heat exchange function comprises:
and controlling the inner machine of the air conditioner to run a mechanical air supply function.
3. The control method according to claim 2, wherein the controlling of the air conditioner to operate the mechanical blowing function comprises:
acquiring the indoor environment temperature;
controlling the internal machine to operate according to a preset wind gear according to the indoor environment temperature and/or the second outdoor environment temperature;
and controlling the inner machine to operate the single air outlet function.
4. The control method according to claim 3,
the novel heat exchange function of controlling the operation of the air conditioner comprises:
when Ts-Tn is more than or equal to a, controlling the internal machine to stop and controlling the air conditioner to operate a fresh air function;
when Ts-Tn is less than a, controlling the air conditioner to stop operating the fresh air function;
wherein Ts is the preset temperature, tn is the indoor environment temperature, and a is a preset temperature value.
5. The control method of claim 1, wherein the determining whether the second outdoor ambient temperature is less than a preset temperature comprises:
if not, controlling the air conditioner to operate a refrigeration function;
and judging whether to control the air conditioner to operate the fresh air function or not according to the relation between the second outdoor environment temperature and the indoor environment temperature.
6. The control method according to claim 5, wherein the determining whether to control the air conditioner to operate the fresh air function according to the relationship between the second outdoor ambient temperature and the indoor ambient temperature comprises:
if Tn is larger than Tw, controlling the air conditioner to operate the fresh air function; and/or the presence of a gas in the atmosphere,
if Tn is less than or equal to Tw, controlling the air conditioner to stop operating the fresh air function; where Tw is the outdoor ambient temperature.
7. The control method according to claim 1, wherein the controlling the air conditioner to operate the novel heat exchange function comprises:
when the air conditioner keeps running, judging whether the time when the air conditioner does not run the novel heat exchange function meets a first preset time;
if so, controlling the accumulated time of the air conditioner for starting the fresh air function to meet second preset time.
8. The control method according to claim 7, wherein the controlling the cumulative time for the air conditioner to start the fresh air function to meet a second preset time comprises:
and when the indoor environment temperature is lower than the outdoor environment temperature, controlling the air conditioner to stop operating the fresh air function and operate the fresh air function to alternatively operate.
9. The control method according to claim 8, wherein the controlling the air conditioner to alternately operate the fresh air function and the fresh air function while stopping the operation comprises:
when the air conditioner controls to start the fresh air function, the frequency of a compressor of the air conditioner is controlled to be increased from f to f1, and then the fresh air function is controlled to be closed;
when the frequency of the compressor is reduced from f + f1 to f2, the fresh air function is controlled to be started;
wherein f1 > f2.
10. The control method according to claim 8, characterized in that the first preset time period is set to a night time period;
and after the accumulated time for controlling the air conditioner to start the fresh air function meets second preset time, if the air conditioner is not operated, controlling the air conditioner to start the fresh air function.
11. The control method according to claim 10, wherein the controlling the air conditioner to turn on a fresh air function comprises:
acquiring indoor ambient temperature and outdoor ambient temperature;
if the outdoor environment temperature is lower than the indoor environment temperature and the indoor environment temperature is higher than the average indoor environment temperature, controlling the air conditioner to start a fresh air function;
and/or controlling the air conditioner to stop operating the fresh air function if the outdoor environment temperature is equal to the indoor environment temperature or the indoor environment temperature is equal to the average indoor environment temperature;
wherein the average indoor temperature is an average indoor temperature during the day.
12. A control device of an air conditioner, comprising:
a detection module (10), the detection module (10) being used for detecting an outdoor ambient temperature and an indoor ambient temperature;
the judging module (20), the judging module (20) is used for judging whether the outdoor environment temperature is lower than the preset temperature or not;
the control module (30), the said control module (30) is used for controlling the said air conditioner to run the new heat exchange function;
wherein the novel heat exchange function comprises introducing the outdoor air from an outdoor environment to an indoor environment.
13. An air conditioner comprising a controller for executing an executable program to implement the control method of any one of claims 1 to 11.
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