CN107436021B - air conditioner and humidity control method and device thereof - Google Patents
air conditioner and humidity control method and device thereof Download PDFInfo
- Publication number
- CN107436021B CN107436021B CN201710818801.2A CN201710818801A CN107436021B CN 107436021 B CN107436021 B CN 107436021B CN 201710818801 A CN201710818801 A CN 201710818801A CN 107436021 B CN107436021 B CN 107436021B
- Authority
- CN
- China
- Prior art keywords
- humidity
- current
- air conditioner
- current indoor
- indoor environment
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Abstract
The invention discloses an air conditioner and a humidity control method and device thereof, wherein the method comprises the following steps: acquiring the current indoor environment humidity in the process of operating the air conditioner in a refrigeration mode; judging whether the current indoor environment humidity is within a preset humidity range; if not, judging whether a throttling element exists in the air conditioner or not; if so, acquiring the current outdoor environment temperature and the current indoor environment temperature, and acquiring the opening degree regulating quantity of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity; and controlling the current running frequency of a compressor in the air conditioner to be kept unchanged, and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within a preset humidity range. The method can adjust the latent heat sensible heat ratio of air conditioner refrigeration by adjusting the opening of the throttling element, further control the relative humidity of indoor air and effectively improve the comfort of the indoor air.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a humidity control method of an air conditioner, a humidity control device of the air conditioner and the air conditioner with the humidity control device.
Background
Humidity, cleanliness and temperature are three important indexes for measuring the comfort of a room, and among the three important indexes, the humidity is often ignored by the public, but in fact, the influence of the humidity on the health of a human body is very large.
In summer, indoor outdoor ambient temperature is higher, and often relative humidity is also great, opens the back of refrigeration mode when the user, because the surface temperature of evaporimeter is less than the dew point temperature of indoor air in the air conditioner, so the air conditioner can be separated out the moisture condensation in the indoor air at cryogenic in-process to lead to the relative humidity of indoor air to descend, and then make the indoor air appear dryly.
At present, in order to control room humidity, a user generally purchases a humidifier to increase indoor relative humidity, so that room comfort is improved, but due to the limitation of the structure and the humidifying principle of the humidifier, the humidifying effect and the humidifying cleanliness cannot meet higher requirements.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a humidity control method for an air conditioner, which can adjust a latent heat sensible heat ratio of air conditioning cooling by adjusting an opening degree of a throttling element, and further control a relative humidity of indoor air, thereby effectively improving comfort of the indoor air.
A second object of the invention is to propose a computer-readable storage medium. A third object of the present invention is to provide a humidity control apparatus for an air conditioner. A fourth object of the present invention is to provide an air conditioner.
In order to achieve the above object, a humidity control method for an air conditioner according to an embodiment of a first aspect of the present invention includes: acquiring the current indoor environment humidity in the process of operating the air conditioner in a refrigeration mode; judging whether the current indoor environment humidity is within a preset humidity range; if the current indoor environment humidity is not in the preset humidity range, further judging whether a throttling element exists in the air conditioner or not; if the throttling element exists in the air conditioner, acquiring the current outdoor environment temperature and the current indoor environment temperature, and acquiring the opening degree regulating quantity of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity; and controlling the current running frequency of a compressor in the air conditioner to be kept unchanged, and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within the preset humidity range.
According to the humidity control method of the air conditioner, the current indoor environment humidity is obtained in the process that the air conditioner operates in the refrigeration mode, and whether the current indoor environment humidity is within the preset humidity range or not is judged. If not, further judging whether a throttling element exists in the air conditioner or not. If so, acquiring the current outdoor environment temperature and the current indoor environment temperature, acquiring the opening degree regulating quantity of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity, controlling the current operation frequency of a compressor in the air conditioner to be kept unchanged, and regulating the current opening degree of the throttling element according to the opening degree regulating quantity so as to enable the current indoor environment humidity to be within a preset humidity range. The method can adjust the latent heat sensible heat ratio of air conditioner refrigeration by adjusting the opening of the throttling element, further control the relative humidity of indoor air and effectively improve the comfort of the indoor air.
according to an embodiment of the present invention, the adjusting the current opening degree of the throttling element according to the opening degree adjustment amount includes: if the current indoor environment humidity is larger than the upper limit value of the preset humidity range, the current opening of the throttling element is reduced by the opening adjusting amount; and if the current indoor environment humidity is smaller than the lower limit value of the preset humidity range, the current opening of the throttling element is increased by the opening adjusting amount.
According to one embodiment of the present invention, the opening degree adjustment amount satisfies the following formula:
Wherein the content of the first and second substances,For the amount of adjustment of the opening degree,For a first opening adjustment amount, theand the current indoor environment humidityIn a functional relationship, a (T)out，Tin) A (T) for the second opening degree adjustmentout，Tin) With the current outdoor ambient temperature Toutand the current indoor ambient temperature TinIs in a functional relationship.
According to an embodiment of the present invention, the first opening degree adjustment amount is obtained by the following formula:
Wherein the content of the first and second substances,Is the first opening degree adjustment amount,Is the current indoor ambient humidity.
According to an embodiment of the present invention, the second opening degree adjustment amount is obtained by the following formula:
Wherein, a (T)out，Tin) For said second opening adjustment, ToutIs the current outdoor ambient temperature, TinIs the current indoor ambient temperature.
To achieve the above object, a second embodiment of the present invention provides a computer-readable storage medium having instructions stored therein, wherein when the instructions are executed, the air conditioner performs the humidity control method.
according to the computer-readable storage medium of the embodiment of the invention, by executing the humidity control method, the latent heat-sensible heat ratio of air-conditioning refrigeration can be adjusted by adjusting the opening of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
In order to achieve the above object, a humidity control device of an air conditioner according to a third embodiment of the present invention includes: the first acquisition module is used for acquiring the current indoor environment humidity in the process that the air conditioner operates in a refrigeration mode; the judging module is used for judging whether the current indoor environment humidity is within a preset humidity range or not and further judging whether a throttling element exists in the air conditioner or not when the current indoor environment humidity is not within the preset humidity range; the second acquisition module is used for acquiring the current outdoor environment temperature and the current indoor environment temperature when the throttling element exists in the air conditioner, and acquiring the opening degree regulating quantity of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity; and the control module is used for controlling the current operating frequency of the compressor in the air conditioner to be kept unchanged and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within the preset humidity range.
According to the humidity control device of the air conditioner, in the process that the air conditioner operates in the refrigeration mode, the current indoor environment humidity is obtained through the first obtaining module, whether the current indoor environment humidity is within the preset humidity range or not is judged through the judging module, and whether the throttling element exists in the air conditioner or not is further judged when the current indoor environment humidity is not within the preset humidity range. And if the current outdoor environment temperature and the current indoor environment temperature exist, the current outdoor environment temperature and the current indoor environment temperature are obtained through the second obtaining module, and the opening degree regulating quantity of the throttling element is obtained according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity. And then, the current running frequency of a compressor in the air conditioner is controlled to be kept unchanged through the control module, and the current opening of the throttling element is adjusted according to the opening adjustment quantity, so that the current indoor environment humidity is in a preset humidity range. The device can adjust the latent heat sensible heat ratio of air-conditioning refrigeration through adjusting the opening degree of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
According to one embodiment of the invention, the control module adjusts the current opening degree of the throttling element according to the opening degree adjustment amount, wherein if the current indoor environment humidity is larger than the upper limit value of the preset humidity range, the control module adjusts the current opening degree of the throttling element by the opening degree adjustment amount; and if the current indoor environment humidity is smaller than the lower limit value of the preset humidity range, the control module increases the current opening of the throttling element by the opening adjustment amount.
According to one embodiment of the present invention, the opening degree adjustment amount satisfies the following formula:
Wherein the content of the first and second substances,For the amount of adjustment of the opening degree,For a first opening adjustment amount, theAnd the current indoor environment humidityIn a functional relationship, a (T)out，Tin) A (T) for the second opening degree adjustmentout，Tin) With the current outdoor ambient temperature ToutAnd the current indoor ambient temperature TinIs in a functional relationship.
According to an embodiment of the present invention, the first opening degree adjustment amount is obtained by the following formula:
Wherein the content of the first and second substances,Is the first opening degree adjustment amount,is the current indoor ambient humidity.
According to an embodiment of the present invention, the second opening degree adjustment amount is obtained by the following formula:
wherein, a (T)out，Tin) For said second opening adjustment, ToutIs the current outdoor ambient temperature, Tinis the current indoor ambient temperature.
In order to achieve the above object, a fourth aspect of the present invention provides an air conditioner, which includes the humidity control device.
According to the air conditioner provided by the embodiment of the invention, through the humidity control device, the latent heat sensible heat ratio of air conditioner refrigeration can be adjusted by adjusting the opening degree of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
Drawings
Fig. 1 is a flowchart of a humidity control method of an air conditioner according to an embodiment of the present invention;
Fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a humidity control method of an air conditioner according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of a humidity control apparatus of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A humidity control method of an air conditioner, a computer-readable storage medium, a humidity control apparatus of an air conditioner, and an air conditioner having the same according to embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart of a humidity control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, a humidity control method of an air conditioner according to an embodiment of the present invention may include the steps of:
and S1, acquiring the current indoor environment humidity during the operation of the air conditioner in the cooling mode.
Specifically, as shown in fig. 2, the air conditioner may include a compressor 1, a liquid storage tank 2, a four-way selector valve 3, an outdoor heat exchanger 4, an outdoor fan 5, a throttling element 6 (e.g., an electronic expansion valve/capillary tube), an indoor heat exchanger 7, and an indoor fan 8.
When the air conditioner operates in a refrigeration mode, high-temperature and high-pressure gaseous refrigerant from the compressor 1 flows to the outdoor heat exchanger 4 (also called a condenser in the refrigeration mode) through the four-way reversing valve 3, is changed into high-temperature and high-pressure liquid refrigerant after heat exchange by the outdoor heat exchanger 4, is changed into low-temperature and low-pressure liquid refrigerant after throttling by the throttling element 6, is changed into low-temperature and low-pressure gaseous refrigerant after heat exchange by the indoor heat exchanger 7 (also called an evaporator in the refrigeration mode), flows into the liquid storage tank 2, is subjected to gas-liquid separation by the liquid storage tank 2 and flows back to the compressor 1, and.
during the operation of the air conditioner in the cooling mode, the current indoor environment humidity can be obtained in real time through a humidity sensor (such as the humidity sensor 9 in fig. 2) arranged at the side of the indoor heat exchanger
And S2, judging whether the current indoor environment humidity is in a preset humidity range.
The preset humidity range is an optimum humidity range comfortable for a user, and may be set by the user through a remote controller or the like, and when the user does not set the humidity range, the preset humidity range may be a default humidity range in the air conditioner, or may be a humidity range corresponding to a target temperature set by the user (a temperature-humidity range correspondence table may be preset in the air conditioner to be obtained by table lookup).
And S3, if the current indoor environment humidity is not in the preset humidity range, further judging whether a throttling element exists in the air conditioner.
And S4, if the air conditioner has a throttling element, acquiring the current outdoor environment temperature and the current indoor environment temperature, and acquiring the opening adjustment quantity of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity.
in particular if the current indoor ambient humidityIf not, it indicates the current indoor environment humidityAnd at this time, judging whether the air conditioner has a throttling element or not, judging firstly to realize the universality of the control algorithm because some air conditioners are not provided with the throttling element 6 shown in fig. 2, and then executing a corresponding control strategy according to the judgment result. For example, when a throttling element exists in the air conditioner, the opening degree of the throttling element can be adjusted to adjust the latent heat sensible heat ratio (the relative specific gravity of the latent heat quantity and the sensible heat quantity) of air conditioner refrigeration, so that the relative humidity of indoor air is controlled, and the requirement of user comfort is met; when the throttling element is not arranged in the air conditioner, the latent heat sensible heat ratio of the refrigeration of the air conditioner can be adjusted by adjusting the running frequency of the compressor, so that the relative humidity of the indoor air is controlled, and the requirement of user comfort is met.
Assuming that a throttling element is currently present in the air conditioner, the current outdoor ambient temperature T may be obtained by a temperature sensor provided on the outdoor heat exchanger side at this timeoutAnd acquiring the current indoor environment temperature T by a temperature sensor arranged at the side of the indoor heat exchangerinThen according to the current outdoor ambient temperature ToutCurrent indoor ambient temperature TinAnd the current indoor ambient humidityObtaining the opening degree regulating quantity of the throttling elementto adjust the amount according to the opening degreeThe opening of the throttling element is adjusted.
According to one embodiment of the present invention, the opening degree adjustment amount satisfies the following formula (1):
wherein the content of the first and second substances,In order to adjust the opening degree, the opening degree is adjusted,Is the first opening degree adjustment amount,With the current indoor ambient humidityIn a functional relationship, a (T)out,Tin) A (T) is a second opening degree adjustment amountout,Tin) And the current outdoor environment temperature ToutAnd the current indoor ambient temperature Tinis in a functional relationship.
Further, according to an embodiment of the present invention, the first opening degree adjustment amount may be obtained by the following formula (2):
the second opening degree adjustment amount is obtained by the following formula (3):
In particular, according to the current outdoor ambient temperature ToutCurrent indoor ambient temperature TinAnd the current indoor ambient humidityObtaining the opening degree regulating quantity of the throttling elementaccording to the current indoor environment humidityObtaining a first opening degree regulating quantitySimultaneously according to the current outdoor environment temperature ToutWith the current indoor ambient temperature TinThe temperature difference therebetween obtains a second opening degree adjustment amount a (T)out,Tin) Then, the two adjustment amounts are summed to obtain a final opening degree adjustment amount
Wherein the humidity is determined according to the current indoor environmentObtaining a first opening degree regulating quantityIn this case, the ambient humidity in the room may be divided into a plurality of stages in advance, wherein each stage corresponds to one adjustment amount. Specifically, when the indoor environment humidity is divided into stages, the preset humidity range may be divided into one stage, and the corresponding adjustment amount is 0. For example, the indoor ambient humidity of 10% to 100% can be divided into three phases, wherein the first phase isthe corresponding adjustment amount is 5; the second stage isThe corresponding adjustment amount is 0; the third stage isthe corresponding adjustment amount is 10.
Further, when the preset humidity range is 45% -65%, the first stage isThe corresponding adjustment amount is 5; the second stage isThe corresponding adjustment amount is 0; the third stage isThe corresponding adjustment amount is 10, which is shown in the above equation (2). In short, the higher the humidity is, the larger the adjustment amount is, the smaller the humidity is, the smaller the adjustment amount is, and the adjustment is not performed when the humidity is within the appropriate humidity range.
But according to the current outdoor ambient temperature ToutWith the current indoor ambient temperature Tinthe temperature difference therebetween obtains a second opening degree adjustment amount a (T)out,Tin) In this case, the temperature difference between the outdoor ambient temperature and the indoor ambient temperature may be divided into a plurality of stages, where each stage corresponds to an adjustment amount. For example, the temperature difference may be divided into three phases, where the first phase is Tout-TinThe corresponding regulating quantity is 0 at the temperature of less than or equal to 5 ℃; the second stage was 5 deg.C<Tout-TinThe corresponding regulating quantity is 2 at the temperature of less than or equal to 10 ℃; the third stage is Tout-Tin>The corresponding adjustment amount is 5 at 10 ℃, which is shown in the above equation (3). In short, the larger the temperature difference value is, the larger the adjustment amount is, and the smaller the temperature difference is, the smaller the adjustment amount is.
In addition, it should be noted that the above equations (2) and (3) are only exemplary, and the division of the specific stages and the setting of the adjustment amount may be set according to actual situations.
And S5, controlling the current running frequency of the compressor in the air conditioner to be constant, and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within a preset humidity range.
According to one embodiment of the present invention, adjusting the current opening degree of the throttle member according to the opening degree adjustment amount includes: if the current indoor environment humidity is larger than the upper limit value of the preset humidity range, adjusting the current opening of the throttling element to be smaller by an opening adjustment amount; and if the current indoor environment humidity is less than the lower limit value of the preset humidity range, the current opening of the throttling element is adjusted by an opening adjustment amount.
in particular if the current indoor ambient humidityGreater than the upper limit of the preset humidity rangeIt means that the humidity in the room is higher, and then a high humidity control process is performed, i.e. the opening of the throttling element is controlled to be reduced, and the current operating frequency of the compressor is controlled to be kept unchanged. Wherein the adjusted opening degree of the throttling elementWherein, a0To adjust the opening of the front throttling element. Because the opening degree of the throttling element is reduced, the evaporation temperature of the indoor heat exchanger is reduced, and when the evaporation temperature is lower than the dew point temperature of indoor air, moisture in the air is condensed and separated out, so that the indoor humidity is reduced to reach the preset humidity range.
If the current indoor environment humidityLess than the lower limit of the preset humidity rangeit means that the humidity in the room is low, and then the low humidity control process is performed, that is, the opening of the throttling element is controlled to be increased, and the current operating frequency of the compressor is controlled to be kept unchanged. Wherein the adjusted opening degree of the throttling elementBecause the opening degree of the throttling element is increased, the evaporation temperature of the indoor heat exchanger is increased, the latent heat ratio of the air conditioner is further improved, the occupation ratio of latent heat in refrigerating capacity is reduced, the reduction of dehumidification capacity is finally realized, and the indoor relative humidity is improved.
if the current indoor environment humidityGreater than or equal to the lower limit value of the preset humidity rangeAnd is less than or equal to the upper limit value of the preset humidity rangeThe opening of the restriction element is not adjusted, i.e. the opening a of the restriction element is controlled0Remain unchanged and do not adjust the operating frequency of the compressor.
It should be noted that, in the present invention, the sensible heat refers to the heat required for increasing or decreasing the temperature of the substance without phase change when the heat is added or removed, that is, the heat is not chemically changed or phase-changed. Latent heat refers to the amount of heat absorbed or released per unit mass of a substance from one phase to another at isothermal and isobaric pressures. For example, when the current indoor ambient humidityLess than the lower limit of the preset humidity rangeDuring the time, reduce the refrigerant and change between gaseous state and liquid state through the aperture of adjusting big throttling element to reduce the occupation ratio of latent heat volume in the refrigerating output, finally realize the reduction of dehumidification volume, improved the relative humidity of indoor air, satisfied user's comfort level demand.
Therefore, according to the humidity control method of the air conditioner provided by the embodiment of the invention, the latent heat sensible heat ratio of the refrigeration of the air conditioner can be adjusted by adjusting the opening degree of the throttling element, so that the relative humidity of the indoor air is controlled, the comfort of the indoor air is effectively improved, and the method is simple and reliable and is easy to implement.
further, if no throttling element is present in the air conditioner, then the current indoor ambient humidityWhen the temperature is not in the preset humidity range, the current outdoor environment temperature T can be obtained through the temperature sensor arranged on the side of the outdoor heat exchangeroutAnd acquiring the current indoor environment temperature T by a temperature sensor arranged at the side of the indoor heat exchangerinThen according to the current outdoor ambient temperature ToutCurrent indoor ambient temperature TinAnd the current indoor ambient humidityobtaining the frequency adjustment of compressor in air conditionerto adjust the amount according to the frequencythe operating frequency of the compressor is adjusted.
According to an embodiment of the present invention, the frequency adjustment amount satisfies the following formula (4):
wherein the content of the first and second substances,In order to adjust the amount of frequency,In order to adjust the amount of the first frequency,With the current indoor ambient humidityIn a functional relationship, f (T)out,Tin) Is the second frequency adjustment, f (T)out,Tin) And the current outdoor environment temperature ToutAnd the current indoor ambient temperature TinIs in a functional relationship.
Further, according to an embodiment of the present invention, the first frequency adjustment amount may be obtained by the following formula (5):
The second frequency adjustment amount is obtained by the following equation (6):
In particular, according to the current outdoor ambient temperature Toutcurrent indoor ambient temperature TinAnd the current indoor ambient humidityObtaining the frequency adjustment of compressor in air conditionerAccording to the current indoor environment humidityObtaining a first frequency adjustmentSimultaneously according to the current outdoor environment temperature ToutWith the current indoor ambient temperature Tinthe temperature difference therebetween obtains a second frequency adjustment f (T)out，Tin) Then the two adjustments are summed to obtain a final frequency adjustment
Wherein the humidity is determined according to the current indoor environmentobtaining a first frequency adjustmentIn this case, the ambient humidity in the room may be divided into a plurality of stages in advance, wherein each stage corresponds to one adjustment amount. Specifically, when the indoor environment humidity is divided into stages, the preset humidity range may be divided into one stage, and the corresponding adjustment amount is 0. For example, the indoor ambient humidity of 10% to 100% can be divided into three phases, wherein the first phase isThe corresponding regulating quantity is 5 Hz; the second stage isThe corresponding adjustment amount is 0; the third stage isThe corresponding adjustment amount is 10 Hz.
Further, when the preset humidity range is 45% -65%, the first stage isthe corresponding regulating quantity is 5 Hz; the second stage isThe corresponding adjustment amount is 0; the third stage isThe corresponding adjustment amount is 10Hz, which is shown in the above equation (5). In short, the higher the humidity is, the larger the adjustment amount is, the smaller the humidity is, the smaller the adjustment amount is, and the adjustment is not performed when the humidity is within the appropriate humidity range.
But according to the current outdoor ambient temperature ToutWith the current indoor ambient temperature TinThe temperature difference therebetween obtains a second frequency adjustment f (T)out,Tin) In this case, the temperature difference between the outdoor ambient temperature and the indoor ambient temperature may be divided in advanceThe number of stages is multiple, wherein each stage corresponds to an adjustment amount. For example, the temperature difference may be divided into three phases, where the first phase is Tout-TinThe corresponding regulating quantity is 0 at the temperature of less than or equal to 5 ℃; the second stage was 5 deg.C<Tout-TinThe corresponding regulating quantity is 2Hz at the temperature of less than or equal to 10 ℃; the third stage is Tout-Tin>The corresponding adjustment amount was 5Hz at 10 ℃ as shown in the above equation (6). In short, the larger the temperature difference value is, the larger the adjustment amount is, and the smaller the temperature difference is, the smaller the adjustment amount is.
It should be noted that the above equations (5) and (6) are merely exemplary, and the division of the specific stages and the setting of the adjustment amount may be set according to actual conditions.
And after the frequency adjustment amount of the compressor is acquired, starting to adjust the running frequency of the compressor according to the frequency adjustment amount. According to one embodiment of the present invention, adjusting the current operating frequency of the compressor according to the frequency adjustment amount includes: if the current indoor environment humidity is larger than the upper limit value of the preset humidity range, increasing the current running frequency of the compressor by a frequency adjustment amount; and if the current indoor environment humidity is less than the lower limit value of the preset humidity range, reducing the current running frequency of the compressor by the frequency regulating quantity.
In particular if the current indoor ambient humidityGreater than the upper limit of the preset humidity rangeIt means that the humidity in the room is higher, and then a high humidity control process is performed, i.e. the operation frequency of the compressor is controlled to be increased, for example, the operation frequency of the compressor after adjustmentWherein f is0To adjust the operating frequency of the front compressor. The running frequency of the compressor is increased, so that the evaporation temperature of the indoor heat exchanger is reduced, and when the evaporation temperature is lowWhen the dew point temperature of the indoor air is high, the moisture in the air is condensed and separated out, so that the indoor humidity is reduced to reach the preset humidity range.
If the current indoor environment humidityLess than the lower limit of the preset humidity rangeIt means that the humidity in the room is low, and then the low humidity control process is performed, i.e. the operation frequency of the compressor is controlled to be reduced, for example, the adjusted operation frequency of the compressorbecause the running frequency of the compressor is reduced, the evaporation temperature of the indoor heat exchanger is increased, the latent heat ratio of the air conditioner is further improved, the occupation ratio of latent heat in refrigerating capacity is reduced, the reduction of dehumidification capacity is finally realized, and the indoor relative humidity is improved.
If the current indoor environment humiditygreater than or equal to the lower limit value of the preset humidity rangeAnd is less than or equal to the upper limit value of the preset humidity rangeThe operating frequency of the compressor is not adjusted, i.e. the compressor is controlled to follow the current operating frequency f0And continuing to operate.
Therefore, according to the humidity control method of the air conditioner provided by the embodiment of the invention, the latent heat sensible heat ratio of the refrigeration of the air conditioner can be adjusted by adjusting the operating frequency of the compressor, so that the relative humidity of the indoor air is controlled, the comfort of the indoor air is effectively improved, and the method is simple and reliable and is easy to implement.
Further, fig. 3 is a flowchart of a humidity control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the humidity control method of the air conditioner may include the steps of:
S101, acquiring the current indoor environment humidity
S102, judging the current indoor environment humiditywhether the humidity is larger than the upper limit value of the preset humidity rangeif yes, go to step S103; if not, step S106 is performed.
and S103, judging whether a throttling element exists in the air conditioner or not. If yes, go to step S104; if not, step S105 is performed.
S104, keeping the running frequency of the compressor unchanged, reducing the opening degree of the throttling element, and adjusting the opening degree
s105, raising the frequency of the compressor, and raising the operating frequency of the compressor
S106, judging the current indoor environment humiditywhether or not it is less than the lower limit value of the preset humidity rangeIf yes, go to step S107; if not, step S110 is executed.
S107, judging whether the air conditioner has a throttling element or not. If yes, go to step S108; if not, step S109 is performed.
S108, keeping the running frequency of the compressor unchanged, adjusting the opening degree of the throttling element to be larger, and adjusting the opening degree to be larger
S109, reducing the frequency of the compressor and the operating frequency after frequency reduction
and S110, keeping the current state unchanged.
In summary, according to the humidity control method of the air conditioner in the embodiment of the present invention, in the process of the air conditioner operating in the cooling mode, when the current indoor environment humidity is not within the preset humidity range, if the air conditioner has the throttling element, the opening degree adjustment amount of the throttling element is obtained according to the current outdoor environment temperature, the current indoor environment temperature, and the current indoor environment humidity, the current operating frequency of the compressor in the air conditioner is controlled to be kept unchanged, and the current opening degree of the throttling element is adjusted according to the opening degree adjustment amount, so that the current indoor environment humidity is within the preset humidity range, and therefore, the sensible heat ratio of the air conditioner cooling is adjusted by adjusting the opening degree of the throttling element, and further, the relative humidity of the indoor air is controlled, and the comfort of the indoor air is effectively improved; if the throttling element is not arranged, the latent heat sensible heat ratio of the refrigeration of the air conditioner is adjusted by adjusting the running frequency of the compressor, so that the relative humidity of the indoor air is controlled, and the comfort of the indoor air is effectively improved.
in addition, an embodiment of the present invention also provides a computer-readable storage medium having instructions stored therein, which when executed, the air conditioner performs the humidity control method described above.
According to the computer-readable storage medium of the embodiment of the invention, by executing the humidity control method, the latent heat-sensible heat ratio of air-conditioning refrigeration can be adjusted by adjusting the opening of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
Fig. 3 is a schematic structural view of a humidity control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the humidity control apparatus of an air conditioner according to an embodiment of the present invention may include: a first obtaining module 110, a judging module 120, a second obtaining module 130 and a control module 140.
the first obtaining module 110 is configured to obtain a current indoor environment humidity during a process in which the air conditioner operates in a cooling mode; the judging module 120 is configured to judge whether the current indoor environment humidity is within a preset humidity range, and further judge whether a throttling element exists in the air conditioner when the current indoor environment humidity is not within the preset humidity range; the second obtaining module 130 is configured to obtain a current outdoor environment temperature and a current indoor environment temperature when a throttling element exists in the air conditioner, and obtain an opening adjustment amount of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature, and the current indoor environment humidity; the control module 140 is connected to the second obtaining module 130 and the compressor in the air conditioner, respectively, and the control module 140 is configured to control a current operating frequency of the compressor in the air conditioner to be constant, and adjust a current opening of the throttling element according to the opening adjustment amount, so that the current indoor environment humidity is within a preset humidity range.
according to one embodiment of the present invention, the control module 140 adjusts the current opening degree of the throttling element according to the opening degree adjustment amount, wherein if the current indoor environment humidity is greater than the upper limit value of the preset humidity range, the control module 140 decreases the current opening degree of the throttling element by the opening degree adjustment amount; if the current indoor ambient humidity is less than the lower limit of the preset humidity range, the control module 140 increases the current opening of the throttling element by an opening adjustment amount.
According to one embodiment of the present invention, the opening degree adjustment amount satisfies the following formula (7):
Wherein the content of the first and second substances,In order to adjust the opening degree, the opening degree is adjusted,Is the first opening degree adjustment amount,With the current indoor ambient humidityIn a functional relationship, a (T)out,Tin) A (T) is a second opening degree adjustment amountout,Tin) And the current outdoor environment temperature ToutAnd the current indoor ambient temperature TinIs in a functional relationship.
According to an embodiment of the present invention, the first opening degree adjustment amount is obtained by the following formula (8):
wherein the content of the first and second substances,Is the first opening degree adjustment amount,Is the current indoor ambient humidity.
According to an embodiment of the present invention, the second opening degree adjustment amount is obtained by the following formula (9):
Wherein, a (T)out,Tin) For a second opening adjustment, ToutIs the current outdoor ambient temperature, TinIs the current indoor ambient temperature.
it should be noted that, for details not disclosed in the humidity control device of the air conditioner in the embodiment of the present invention, please refer to details disclosed in the humidity control method of the air conditioner in the embodiment of the present invention, and detailed descriptions thereof are omitted here.
According to the humidity control device of the air conditioner, in the process that the air conditioner operates in the refrigeration mode, the current indoor environment humidity is obtained through the first obtaining module, whether the current indoor environment humidity is within the preset humidity range or not is judged through the judging module, and whether the throttling element exists in the air conditioner or not is further judged when the current indoor environment humidity is not within the preset humidity range. If the current outdoor environment temperature and the current indoor environment temperature exist, the current outdoor environment temperature and the current indoor environment temperature are obtained through the second obtaining module, the opening degree adjusting quantity of the throttling element is obtained according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity, then the current running frequency of a compressor in the air conditioner is controlled to be kept unchanged through the control module, and the current opening degree of the throttling element is adjusted according to the opening degree adjusting quantity, so that the current indoor environment humidity is in the preset humidity range. The device can adjust the latent heat sensible heat ratio of air-conditioning refrigeration through adjusting the opening degree of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
In addition, the embodiment of the invention also provides an air conditioner, which comprises the humidity control device.
According to the air conditioner provided by the embodiment of the invention, through the humidity control device, the latent heat sensible heat ratio of air conditioner refrigeration can be adjusted by adjusting the opening degree of the throttling element, so that the relative humidity of indoor air is controlled, and the comfort of the indoor air is effectively improved.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In addition, in the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. a humidity control method of an air conditioner is characterized by comprising the following steps:
Acquiring the current indoor environment humidity in the process of operating the air conditioner in a refrigeration mode;
judging whether the current indoor environment humidity is within a preset humidity range;
If the current indoor environment humidity is not in the preset humidity range, further judging whether a throttling element exists in the air conditioner or not;
If the throttling element exists in the air conditioner, the current outdoor environment temperature and the current indoor environment temperature are obtained, and the opening degree regulating quantity of the throttling element is obtained according to the current outdoor environment temperature, the current indoor environment temperature and the current indoor environment humidity, wherein the opening degree regulating quantity meets the following formula:
Wherein the content of the first and second substances,For the amount of adjustment of the opening degree,for a first opening adjustment amount, theAnd the current indoor environment humidityin a functional relationship, a (T)out,Tin) A (T) for the second opening degree adjustmentout,Tin) With the current outdoor ambient temperature ToutAnd the current indoor ambient temperature TinIn a functional relationship;
and controlling the current running frequency of a compressor in the air conditioner to be kept unchanged, and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within the preset humidity range.
2. The humidity control method of an air conditioner according to claim 1, wherein said adjusting the current opening degree of the throttling element according to the opening degree adjustment amount comprises:
If the current indoor environment humidity is larger than the upper limit value of the preset humidity range, the current opening of the throttling element is reduced by the opening adjusting amount;
And if the current indoor environment humidity is smaller than the lower limit value of the preset humidity range, the current opening of the throttling element is increased by the opening adjusting amount.
3. The humidity control method of an air conditioner according to claim 1, wherein the first opening degree adjustment amount is obtained by the following formula:
wherein the content of the first and second substances,Is the first opening degree adjustment amount,Is the current indoor ambient humidity.
4. The humidity control method of an air conditioner according to claim 1, wherein the second opening degree adjustment amount is obtained by the following formula:
Wherein, a (T)out,Tin) For said second opening adjustment, Toutis the current outdoor ambient temperature, Tinis the current indoor ambient temperature.
5. A computer-readable storage medium having instructions stored therein, which when executed, the air conditioner performs the humidity control method of any one of claims 1-4.
6. a humidity control apparatus of an air conditioner, comprising:
the first acquisition module is used for acquiring the current indoor environment humidity in the process that the air conditioner operates in a refrigeration mode;
the judging module is used for judging whether the current indoor environment humidity is within a preset humidity range or not and further judging whether a throttling element exists in the air conditioner or not when the current indoor environment humidity is not within the preset humidity range;
A second obtaining module, configured to obtain a current outdoor environment temperature and a current indoor environment temperature when the throttling element exists in the air conditioner, and obtain an opening adjustment amount of the throttling element according to the current outdoor environment temperature, the current indoor environment temperature, and the current indoor environment humidity, where the opening adjustment amount satisfies the following formula:
wherein the content of the first and second substances,for the amount of adjustment of the opening degree,for a first opening adjustment amount, theand the current indoor environment humidityin a functional relationship, a (T)out,Tin) A (T) for the second opening degree adjustmentout,Tin) With the current outdoor ambient temperature ToutAnd the current indoor ambient temperature TinIn a functional relationship;
And the control module is respectively connected with the second acquisition module and the compressor in the air conditioner, and is used for controlling the current running frequency of the compressor in the air conditioner to be kept unchanged and adjusting the current opening of the throttling element according to the opening adjustment quantity so as to enable the current indoor environment humidity to be within the preset humidity range.
7. The humidity control apparatus of an air conditioner according to claim 6, wherein the control module adjusts a current opening degree of the throttling element according to the opening degree adjustment amount, wherein,
if the current indoor environment humidity is larger than the upper limit value of the preset humidity range, the control module adjusts the current opening of the throttling element by the opening adjustment amount;
And if the current indoor environment humidity is smaller than the lower limit value of the preset humidity range, the control module increases the current opening of the throttling element by the opening adjustment amount.
8. The humidity control apparatus of an air conditioner according to claim 6, wherein the first opening degree adjustment amount is obtained by the following formula:
Wherein the content of the first and second substances,Is the first opening degree adjustment amount,Is the current indoor ambient humidity.
9. The humidity control apparatus of an air conditioner according to claim 6, wherein the second opening degree adjustment amount is obtained by the following formula:
Wherein, a (T)out,Tin) For said second opening adjustment, ToutIs the current outdoor ambient temperature, TinIs the current indoor ambient temperature.
10. An air conditioner characterized by comprising the humidity control apparatus as set forth in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818801.2A CN107436021B (en) | 2017-09-12 | 2017-09-12 | air conditioner and humidity control method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818801.2A CN107436021B (en) | 2017-09-12 | 2017-09-12 | air conditioner and humidity control method and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107436021A CN107436021A (en) | 2017-12-05 |
| CN107436021B true CN107436021B (en) | 2019-12-10 |
Family
ID=60462101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818801.2A Active CN107436021B (en) | 2017-09-12 | 2017-09-12 | air conditioner and humidity control method and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107436021B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412592A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Multi-connected air conditioner, control method and device thereof and storage medium |
| CN113959110B (en) * | 2021-09-30 | 2022-11-01 | 珠海格力电器股份有限公司 | Refrigeration system and dehumidification control method |
| CN114484805B (en) * | 2022-02-25 | 2023-03-24 | 珠海格力电器股份有限公司 | Air conditioner temperature and humidity control method and air conditioner |
| CN117168025A (en) * | 2022-05-25 | 2023-12-05 | 广东美的制冷设备有限公司 | Air conditioner control method, controller, air conditioner and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171459A (en) * | 2005-05-30 | 2008-04-30 | 大金工业株式会社 | Humidity conditioner |
| CN102589094A (en) * | 2012-03-13 | 2012-07-18 | 广东吉荣空调有限公司 | Staged synchronous compressor and expansion valve control method for thermostatic and humidistatic air conditioning unit |
| CN103512155A (en) * | 2013-09-30 | 2014-01-15 | 美的集团股份有限公司 | Air-conditioner control method and control system |
| EP3021060A1 (en) * | 2014-11-12 | 2016-05-18 | LG Electronics Inc. | Air conditioner and method of controlling the same |
| CN106765927A (en) * | 2016-12-13 | 2017-05-31 | 青岛海尔空调器有限总公司 | The control method of air-conditioning expansion valve |
-
2017
- 2017-09-12 CN CN201710818801.2A patent/CN107436021B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101171459A (en) * | 2005-05-30 | 2008-04-30 | 大金工业株式会社 | Humidity conditioner |
| CN102589094A (en) * | 2012-03-13 | 2012-07-18 | 广东吉荣空调有限公司 | Staged synchronous compressor and expansion valve control method for thermostatic and humidistatic air conditioning unit |
| CN103512155A (en) * | 2013-09-30 | 2014-01-15 | 美的集团股份有限公司 | Air-conditioner control method and control system |
| EP3021060A1 (en) * | 2014-11-12 | 2016-05-18 | LG Electronics Inc. | Air conditioner and method of controlling the same |
| CN106765927A (en) * | 2016-12-13 | 2017-05-31 | 青岛海尔空调器有限总公司 | The control method of air-conditioning expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107436021A (en) | 2017-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107621053B (en) | Air conditioner and humidity control method and device thereof | |
| CN107676921B (en) | Air conditioner and humidity control method and device thereof | |
| CN107477804B (en) | Air conditioner and humidity control method and device thereof | |
| CN107490153B (en) | Air conditioner and humidity control method and device thereof | |
| CN107664340B (en) | Air conditioner and control method and device thereof | |
| CN107436021B (en) | air conditioner and humidity control method and device thereof | |
| US10101054B2 (en) | Variable refrigerant flow air conditioning system with dual control over temperature and humidity and control method thereof | |
| CN107940827B (en) | Multi-split air conditioning system and refrigerant distribution control method and device thereof | |
| WO2019052074A1 (en) | Air conditioner, and control method and apparatus therefor | |
| CN107940826B (en) | Multi-split air conditioning system and refrigerant distribution control method and device thereof | |
| CN104110799A (en) | Integrated control method and circuit for electronic expansion valve of air conditioner | |
| CN109855184B (en) | Air conditioner and dehumidification control method thereof | |
| CN107477788B (en) | Air conditioning system and control method and device of indoor fan of air conditioning system | |
| CN113739378B (en) | Control method of air conditioning system, air conditioning system and storage medium | |
| WO2021175013A1 (en) | Air conditioner and control method thereof | |
| CN112344461B (en) | Water system air conditioner | |
| CN113357757A (en) | Air conditioner and control method thereof | |
| EP3677850B1 (en) | Control method and apparatus for self-cleaning of air conditioner, and air conditioner | |
| CN107477802B (en) | Air conditioner and indoor unit control device and method thereof | |
| CN109955676B (en) | Air conditioner control system and method | |
| WO2018212243A1 (en) | Air conditioning system | |
| CN108195041B (en) | Air conditioner and control method and device thereof | |
| CN107975922B (en) | Air conditioner and control method and device thereof | |
| CN111928433B (en) | Air conditioner and control method thereof | |
| CN111237982B (en) | Air conditioner, control method and device thereof, electronic equipment and storage medium |
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 |