CN108561962B - Air conditioner, condensation judgment method thereof and computer readable storage medium - Google Patents

Air conditioner, condensation judgment method thereof and computer readable storage medium Download PDF

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Publication number
CN108561962B
CN108561962B CN201810397144.3A CN201810397144A CN108561962B CN 108561962 B CN108561962 B CN 108561962B CN 201810397144 A CN201810397144 A CN 201810397144A CN 108561962 B CN108561962 B CN 108561962B
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air
air conditioner
temperature
condensation
fresh
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CN108561962A (en
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刘旭
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F2013/221Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew

Abstract

The invention discloses a condensation judging method of an air conditioner, which comprises the following steps: when the air conditioner is detected to be in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time; calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is greater than a preset threshold value; and when the temperature difference is larger than or equal to a preset threshold value, judging that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold value, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device. The invention also discloses an air conditioner and a computer readable storage medium. The air conditioner can find the condensation phenomenon in time, and the service life of the air conditioner is ensured.

Description

Air conditioner, condensation judgment method thereof and computer readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner, a condensation judgment method of the air conditioner and a computer readable storage medium.
Background
With the improvement of living standard of people, the air conditioner becomes an essential electric appliance in people's production.
When the air conditioner works, the air conditioner is generally in a closed place, and in order to prevent a user in the closed place from feeling bored, the air conditioner can obtain fresh air from the outside to convey the fresh air to the inside. However, when the air conditioner is used for exchanging fresh air, because indoor and outdoor environmental parameters are unequal, condensation occurs inside or outside a fresh air pipeline of the air conditioner, and therefore the air conditioner is damaged. That is, in the prior art, the condensation phenomenon cannot be found in time when the fresh air of the air conditioner is conveyed.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a condensation judgment method thereof and a computer readable storage medium, and aims to solve the problem that condensation cannot be found in time when fresh air of the air conditioner is conveyed.
In order to achieve the above object, the present invention provides a condensation determination method for an air conditioner, where the air conditioner includes a fresh air inlet, an internal circulation air inlet, an air outlet, and an air duct communicated between the fresh air inlet, the internal circulation air inlet, and the air outlet, the air duct includes a main air duct and a first sub-air duct and a second sub-air duct connected in parallel, the fresh air inlet is connected to the air outlet sequentially through the first sub-air duct and the main air duct, the internal circulation air inlet is connected to the air outlet sequentially through the second sub-air duct and the main air duct, the first sub-air duct is provided with a first air volume adjustment device, the second sub-air duct is provided with a second air volume adjustment device, and the condensation determination method for an air conditioner includes the following steps:
when the air conditioner is detected to be in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time;
calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is greater than a preset threshold value;
and when the temperature difference is larger than or equal to a preset threshold value, judging that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold value, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device.
Preferably, after the step of acquiring the fresh air temperature and the indoor temperature in real time or at regular time, the method further comprises the following steps:
determining the working mode of the air conditioner;
when the air conditioner is in a refrigeration mode, acquiring fresh air humidity;
judging whether the fresh air humidity is smaller than a preset humidity or not;
and when the fresh air humidity is smaller than the preset humidity, executing the step of calculating the temperature difference between the fresh air temperature and the indoor temperature.
Preferably, after the step of judging whether the humidity of the fresh air is greater than the preset humidity, the method further comprises:
and when the fresh air humidity is greater than or equal to the preset humidity, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Preferably, after the step of determining whether the temperature difference is greater than or equal to a preset threshold, the method further includes:
when the temperature difference is smaller than a preset threshold value, determining the working mode of the air conditioner;
when the air conditioner is in a refrigeration mode, acquiring fresh air humidity, and calculating fresh air dew point temperature according to the fresh air humidity and the fresh air temperature;
judging whether the fresh air dew point temperature is higher than the indoor temperature;
and when the fresh air dew point temperature is higher than the indoor temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Preferably, after the step of determining the operation mode of the air conditioner, the method further includes:
when the air conditioner is in a heating mode, acquiring indoor humidity, and calculating indoor dew point temperature according to the indoor humidity and the indoor temperature;
judging whether the indoor dew point temperature is greater than the fresh air temperature;
and when the indoor dew point temperature is higher than the fresh air temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Preferably, the step of adjusting the operation parameters of the air conditioner includes:
and increasing the opening degree of the second air volume adjusting device, or increasing the opening degree of the second air volume adjusting device and reducing the opening degree of the first air volume adjusting device.
In order to achieve the above object, the present invention further provides an air conditioner, which includes a fresh air inlet, an internal circulation air inlet, an air outlet, and an air duct communicated between the fresh air inlet, the internal circulation air inlet, and the air outlet, wherein the air duct includes a main air duct and a first sub air duct and a second sub air duct connected in parallel, the fresh air inlet is connected to the air outlet sequentially through the first sub air duct and the main air duct, the internal circulation air inlet is connected to the air outlet sequentially through the second sub air duct and the main air duct, the first sub air duct is provided with a first air volume adjusting device, and the second sub air duct is provided with a second air volume adjusting device.
Preferably, the air conditioner further comprises a processor, a memory and a condensation judging program of the air conditioner stored on the memory and operable on the processor, and the condensation judging program of the air conditioner realizes the steps of the condensation judging method of the air conditioner as described above when executed by the processor.
In order to achieve the above object, the present invention further provides a computer readable storage medium storing a condensation determining program of an air conditioner, which when executed by a processor, implements the steps of the condensation determining method of the air conditioner as described above.
According to the air conditioner, the condensation judgment method and the computer readable storage medium provided by the invention, when the air conditioner is detected to be in a fresh air mode, the fresh air temperature and the indoor temperature are obtained, and the condensation generated by the air conditioner is judged according to the difference value between the fresh air temperature and the indoor temperature when the temperature difference value is larger than the preset temperature difference value, so that the air conditioner can take measures in time, and the service life of the air conditioner is ensured.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a condensation determination method for an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a view showing the structure of an air duct of the air conditioner according to the present invention;
FIG. 4 is a flowchart illustrating a second embodiment of a method for determining condensation in an air conditioner according to the present invention;
fig. 5 is a flowchart illustrating a method for determining condensation of an air conditioner according to a third embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: when the air conditioner is detected to be in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time; calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is greater than a preset threshold value; and when the temperature difference is larger than or equal to a preset threshold value, judging that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold value, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device.
In the prior art, when the fresh air is changed, because of unequal indoor and outdoor environmental parameters, condensation occurs inside or outside a fresh air pipeline of the air conditioner, and the air conditioner is damaged. That is, in the prior art, the condensation phenomenon cannot be found in time when the fresh air of the air conditioner is conveyed.
The present invention provides a solution: whether the air conditioner generates condensation or not is judged according to the fresh air temperature and the indoor temperature, so that the air conditioner can take measures in time, and the service life of the air conditioner is guaranteed.
As one implementation, the air conditioner may be as shown in fig. 1.
The embodiment of the invention relates to an air conditioner, which comprises: a processor 1001, such as a CPU, a memory 1002, and a communication bus 1003. The communication bus 1003 is used to implement connection communication among these components.
The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As shown in fig. 1, a dew condensation judging program of an air conditioner may be included in the memory 1003 as a kind of computer storage medium; and the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
when the air conditioner is detected to be in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time;
calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is greater than a preset threshold value;
and when the temperature difference is larger than or equal to a preset threshold value, judging that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold value, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device.
Further, the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
determining the working mode of the air conditioner;
when the air conditioner is in a refrigeration mode, acquiring fresh air humidity;
judging whether the fresh air humidity is smaller than a preset humidity or not;
and when the fresh air humidity is smaller than the preset humidity, executing the step of calculating the temperature difference between the fresh air temperature and the indoor temperature.
Further, the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
and when the fresh air humidity is greater than or equal to the preset humidity, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Further, the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
when the temperature difference is smaller than a preset threshold value, determining the working mode of the air conditioner;
when the air conditioner is in a refrigeration mode, acquiring fresh air humidity, and calculating fresh air dew point temperature according to the fresh air humidity and the fresh air temperature;
judging whether the fresh air dew point temperature is higher than the indoor temperature;
and when the fresh air dew point temperature is higher than the indoor temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Further, the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
when the air conditioner is in a heating mode, acquiring indoor humidity, and calculating indoor dew point temperature according to the indoor humidity and the indoor temperature;
judging whether the indoor dew point temperature is greater than the fresh air temperature;
and when the indoor dew point temperature is higher than the fresh air temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
Further, the processor 1001 may be configured to call a condensation determination program of the air conditioner stored in the memory 1002, and perform the following operations:
and increasing the opening degree of the second air volume adjusting device, or increasing the opening degree of the second air volume adjusting device and reducing the opening degree of the first air volume adjusting device.
According to the scheme, when the air conditioner is detected to be in the fresh air mode, the fresh air temperature and the indoor temperature are acquired, and according to the temperature difference value of the fresh air temperature and the indoor temperature, when the temperature difference value is larger than the preset temperature difference value, the air conditioner is judged to generate condensation, so that measures can be taken by the air conditioner timely, and the service life of the air conditioner is guaranteed.
Based on the hardware architecture, the embodiment of the condensation judgment method of the air conditioner is provided.
Referring to fig. 2, fig. 2 is a first embodiment of a condensation determination method of an air conditioner according to the present invention, the condensation determination method of an air conditioner includes the following steps:
step S10, when detecting that the air conditioner is in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time;
in the invention, the air conditioner has a fresh air mode, and in the fresh air mode, the air conditioner can convey outdoor air (fresh air) to the indoor, thereby reducing the sense of oppression caused by non-circulation of indoor air.
The air conditioner can set up temperature sensor at the indoor set and be used for detecting indoor temperature, still can set up temperature sensor at fresh air pipeline and be used for detecting fresh air temperature, and of course, the air conditioner can be the networking and directly obtain current outdoor temperature to regard outdoor temperature as fresh air temperature.
When the air conditioner is in the fresh air mode, the air conditioner acquires the indoor temperature and the fresh air temperature to judge whether the air conditioner is in the state of generating condensation.
Step S20, calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is greater than a preset threshold value;
step S30, when the temperature difference is greater than or equal to a preset threshold, determining that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device;
in the invention, the size of the temperature difference between the indoor temperature and the fresh air temperature can represent the size of the condensation risk of the air conditioner, and the larger the temperature difference is, the larger the condensation risk of the air conditioner is. Based on the temperature difference, the air conditioner calculates the temperature difference between the indoor temperature and the fresh air temperature, judges whether the temperature difference is larger than or equal to a preset temperature difference, the preset temperature difference is an empirical value, and judges that the air conditioner can generate condensation when the temperature difference is larger than or equal to the preset temperature difference.
It should be noted that, when the air conditioner is refrigerating, the fresh air duct located in the indoor unit is in full contact with the indoor space, the temperature of the outer wall of the fresh air duct is equal to the indoor temperature, and if the temperature difference is greater than or equal to the preset temperature difference, condensation can be generated on the inner wall of the fresh air duct (in the refrigeration mode, the indoor temperature is lower than the fresh air temperature, the fresh air absorbs indoor cold, and the condensation on the inner wall of the fresh air duct). When the air conditioner heats, the fresh air pipeline fully contacts with fresh air, the inner wall temperature of the fresh air pipeline is equal to the fresh air temperature, and if the temperature difference is larger than or equal to the preset temperature difference, condensation can be generated on the outer wall of the fresh air pipeline (under the heating mode, the indoor temperature is higher than the fresh air temperature, at the moment, the outer wall of the pipeline conducts heat to the inner wall, namely, the water vapor on the outer wall side absorbs cold energy, and the outer wall generates condensation).
When judging that the air conditioner produces the condensation, the air conditioner can output warning information to remind the user to close the new trend mode, if the user does not have when the operation that corresponds, the air conditioner can directly close the new trend function.
In this embodiment, the air conditioner has an internal circulation function, the air conditioner can simultaneously operate an internal circulation mode and a fresh air mode, in the internal circulation mode, the air conditioner circulates indoor air, the air conditioner can introduce the indoor air into a fresh air pipeline, so as to reduce the temperature of fresh air, based on the above concept, the air duct structure of the air conditioner is improved, referring to fig. 3, the air conditioner includes a fresh air inlet 10, an internal circulation inlet 20, an air outlet 30, and a fresh air duct communicated among the fresh air inlet 10, the internal circulation inlet 20, and the air outlet 30, the fresh air duct includes a main air duct 40, and a first sub-air duct 50 and a second sub-air duct 60 connected in parallel, the fresh air inlet 10 is connected with the air outlet sequentially through the first sub-air duct 50 and the main air duct, the internal circulation inlet 20 is connected with the air outlet 30 sequentially through the second sub-air duct 60 and the main air duct, the first sub-air duct 50 is provided with a first air volume adjusting device 51, the second sub-air duct 60 is provided with a second air volume adjusting device 62, and the main air duct 40 is further provided with a fresh air fan 70.
The operation parameters of the air conditioner comprise the opening degree of the first air volume adjusting device and the opening degree of the second air volume adjusting device, and the air conditioner can increase the opening degree of the second air volume adjusting device or increase the opening degree of the second air volume adjusting device and reduce the opening degree of the first air volume adjusting device so as to reduce the temperature of fresh air. It can be understood that, this operation introduces the indoor air into the fresh air to form the mixed air, and because the indoor temperature must be lower than the fresh air temperature (the cooling mode), the temperature of the mixed air is reduced, and the temperature difference between the fresh air temperature (the mixed air temperature) and the indoor temperature is also reduced, so as to avoid the condensation of the air conditioner. If the air conditioner is in a heating mode, the opening degree of the second air volume adjusting device can be increased, or the opening degree of the second air volume adjusting device is increased and the opening degree of the first air volume adjusting device is reduced, so that the temperature of fresh air is increased, the temperature difference value is reduced (the indoor temperature is higher than the temperature of the fresh air), and condensation on the outer wall of the fresh air is avoided.
The air conditioner can also be provided with a cooling device, the cooling device can be a small refrigeration system, such as a semiconductor refrigeration device, a magnetic refrigeration device and a small compression refrigeration device, the cooling device is arranged on the outdoor unit, the cooling device is provided with a cooling pipeline, and the cooling pipeline is connected with the first sub-air channel in series. The air conditioner cools the fresh air according to the cooling device, the cooled fresh air is blown to the indoor through the first sub-air duct, the power of the cooling device can be determined according to the difference value between the temperature of the fresh air and the indoor temperature, the power of the cooling device is determined according to the difference value, and the larger the difference value is, the larger the power is. That is, in the cooling mode, the air conditioner reduces the temperature difference by the cooling device.
The air conditioner can also be provided with a heating device, and the temperature of fresh air is improved through the heating device. The air conditioner is provided with a heating device, the heating device is arranged on the outdoor unit, the heating device can electrically assist the heating device, the heating device is provided with a heating pipeline, the heating pipeline is connected with the first sub-air channel in series, the air conditioner can heat up the fresh air according to the heating device, the heated fresh air is sent into the first sub-air channel, the heating power of the heating device can be determined according to condensation parameters, the difference value between the indoor temperature and the fresh air temperature is specifically calculated, the heating power of the heating device is determined according to the difference value, and the larger the difference value is, the larger the heating power is. That is, in the heating mode, the air conditioner reduces the temperature difference by the heating device.
In the technical scheme that this embodiment provided, when detecting that the air conditioner is in the new trend mode, acquire new trend temperature and indoor temperature to according to the difference in temperature of new trend temperature and indoor temperature, when the difference in temperature is greater than preset temperature difference, judge that the air conditioner produces the condensation, thereby make the taking measures that the air conditioner can be timely, guaranteed the life of air conditioner.
Referring to fig. 4, fig. 4 is a second embodiment of the condensation determination method for an air conditioner according to the present invention, and based on the first embodiment, after step S10, the method further includes:
step S40, determining the working mode of the air conditioner;
step S50, when the air conditioner is in a refrigeration mode, acquiring fresh air humidity;
step S60, judging whether the fresh air humidity is less than a preset humidity;
step S70, when the fresh air humidity is smaller than the preset humidity, the step of calculating the temperature difference between the fresh air temperature and the indoor temperature is executed;
step S80, when the humidity of the fresh air is greater than or equal to a preset humidity, judging that the air conditioner generates condensation, and adjusting the operation parameters of the air conditioner;
when the air conditioner is in a refrigeration mode, if the humidity of fresh air is too high, condensation is easily generated in the fresh air pipeline. And under the mode of heating, the outer wall of new trend pipeline can produce the condensation, and at this moment, the condensation of air conditioner is relevant with indoor humidity, also is irrelevant with new trend humidity. Based on the above, the working mode of the air conditioner needs to be determined firstly, if the air conditioner is in the refrigeration mode, fresh air humidity is obtained (a humidity sensor is arranged in a fresh air pipeline of the air conditioner, or the air conditioner is networked to obtain outdoor humidity, and the outdoor humidity is used as the fresh air humidity), the air conditioner judges whether the fresh air humidity is smaller than preset humidity, if so, the condensation risk of the air conditioner is low, and at the moment, the air conditioner further accurately judges whether the air conditioner generates condensation according to the difference value of the indoor temperature and the fresh air temperature; if the fresh air humidity is greater than or equal to the preset humidity, the condensation risk of the air conditioner is very high, and at the moment, the air conditioner can be judged to generate condensation.
In the technical scheme that this embodiment provided, when the air conditioner was the refrigeration mode, acquire new trend humidity to judge whether new trend humidity is less than new trend humidity, if, then whether the accurate condensation that produces of air conditioner is judged to the temperature difference according to new trend temperature and indoor temperature further, thereby has saved the computational resource of air conditioner, and the intelligent degree of air conditioner is high.
Referring to fig. 5, fig. 5 is a third embodiment of the method for determining condensation of an air conditioner according to the present invention, and based on the first or second embodiment, after step S20, the method further includes:
step S90, when the temperature difference is smaller than a preset threshold, determining the working mode of the air conditioner;
s100, when the air conditioner is in a refrigeration mode, acquiring fresh air humidity, and calculating fresh air dew point temperature according to the fresh air humidity and the fresh air temperature;
step S110, judging whether the fresh air dew point temperature is greater than the indoor temperature;
step S120, when the fresh air dew point temperature is higher than the indoor temperature, determining that the air conditioner generates condensation, and adjusting the operation parameters of the air conditioner;
the condensation of the air conditioner is also related to the humidity, so when the temperature difference is smaller than a preset threshold, the air conditioner may also generate condensation, at this time, the air conditioner may determine the operating mode of the air conditioner, if the air conditioner is in the refrigeration mode, the humidity of the fresh air is obtained, the dew point temperature of the fresh air is calculated according to the humidity of the fresh air and the temperature of the fresh air, for example, the temperature of the fresh air is 23 ℃, the humidity of the fresh air is RH 45%, the air conditioner searches 23 ℃ at the saturated vapor pressure corresponding to the temperature, the corresponding saturated vapor pressure is-21.07 mm hg, then 21.07 × 45% (the humidity of the fresh air) is 9.4815, the saturated vapor pressure corresponding to the value 9.4815 is inquired in the following table, and if the saturated vapor pressure does not completely coincide with the temperature, a temperature value is taken at the upper and lower critical points according to a proportion, the dew point temperature is the.
After the air conditioner obtains the fresh air dew point temperature, the air conditioner can judge whether the fresh air dew point temperature is higher than the indoor temperature, and if so, the air conditioner can generate condensation.
Step S130, when the air conditioner is in a heating mode, acquiring indoor humidity, and calculating indoor dew point temperature according to the indoor humidity and the indoor temperature;
step S140, judging whether the indoor dew point temperature is greater than the fresh air temperature;
s150, when the indoor dew point temperature is higher than the fresh air temperature, judging that the air conditioner generates condensation, and adjusting the operation parameters of the air conditioner;
when the air conditioner is in the mode of heating, the air conditioner then can acquire indoor humidity to according to indoor humidity and indoor temperature calculation indoor dew point temperature, indoor dew point temperature is unanimous with new trend dew point temperature's calculation mode, if indoor dew point temperature is greater than new trend temperature, then judges that the air conditioner can produce the condensation.
In the technical scheme that this embodiment provided, the air conditioner calculates dew point temperature when judging that the temperature difference is less than preset threshold value to judge the air conditioner again according to dew point temperature and whether produce the condensation, thereby make the air conditioner avoid the emergence of condensation leak hunting phenomenon, guarantee that the air conditioner can not receive the harm, the intelligent degree of air conditioner is high.
The invention also provides an air conditioner, referring to fig. 3, the air conditioner comprises a fresh air inlet 10, an internal circulation air inlet 20, an air outlet 30 and an air duct communicated among the fresh air inlet 10, the internal circulation air inlet 20 and the air outlet 30, the air duct comprises a main air duct 40 and a first sub air duct 50 and a second sub air duct 60 which are connected in parallel, the fresh air inlet 10 is connected with the air outlet sequentially through the first sub air duct 50 and the main air duct, the internal circulation air inlet 20 is connected with the air outlet 30 sequentially through the second sub air duct 60 and the main air duct 40, the first sub air duct 50 is provided with a first air volume adjusting device 51, the second sub air duct 60 is provided with a second air volume adjusting device 62, and the main air duct 40 is further provided with a fan 70.
The first air volume adjusting device 51 is used for adjusting the fresh air intake volume of the first sub-air duct 50, the second air volume adjusting device 61 is used for adjusting the indoor air intake volume of the second sub-air duct 60, the fresh air inlet 10 is located in the outdoor unit of the air conditioner, and the air outlet 30 and the internal circulation air inlet 20 are located in the indoor unit. The first air volume adjusting device 51 and the second air volume adjusting device 61 are provided with fixed ends, the first air volume adjusting device 51 and the second air volume adjusting device 61 are further provided with baffles, the baffles are movably connected with the fixed ends, the first air volume adjusting device 51 can be arranged at any position of the first sub-air duct 50, the optimal position is the fresh air inlet 10 of the first sub-air duct 50, the second air volume adjusting device 61 can be arranged at any position of the second sub-air duct 60, and the optimal position is the internal circulation air inlet 30 of the second sub-air duct 60.
The air conditioner can also be provided with a cooling device (not shown in figure 3), the cooling device can be a small-sized refrigeration system, such as a semiconductor refrigeration device, a magnetic refrigeration device and a small-sized compression refrigeration device, the cooling device is arranged on an outdoor unit, the cooling device is provided with a cooling pipeline, and the cooling pipeline is connected with the first sub-air channel in series.
The air conditioner can also be provided with a heating device (not shown in figure 3), and the temperature of fresh air is increased through the heating device. The air conditioner is provided with a heating device, the heating device is arranged on the outdoor unit and can electrically assist the heating device, and the heating device is provided with a heating pipeline which is connected with the first sub-air channel in series. Note that the heating line and the cooling line are connected in series.
The air conditioner further comprises a processor, a memory and a condensation judging program of the air conditioner, wherein the condensation judging program of the air conditioner is stored on the memory and can run on the processor, and when the condensation judging program of the air conditioner is executed by the processor, the steps of the condensation judging method of the air conditioner are realized.
The present invention also provides a computer-readable storage medium storing a condensation determination program of an air conditioner, which when executed by a processor implements the steps of the condensation determination method of the air conditioner according to the above embodiment.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. The condensation judgment method of the air conditioner is characterized in that the air conditioner comprises a fresh air inlet, an internal circulation air inlet, an air outlet and an air duct communicated among the fresh air inlet, the internal circulation air inlet and the air outlet, the air duct comprises a main air duct and a first sub-air duct and a second sub-air duct which are connected in parallel, the fresh air inlet is connected with the air outlet sequentially through the first sub-air duct and the main air duct, the internal circulation air inlet is connected with the air outlet sequentially through the second sub-air duct and the main air duct, the first sub-air duct is provided with a first air volume adjusting device, the second sub-air duct is provided with a second air volume adjusting device, and the condensation judgment method of the air conditioner comprises the following steps:
when the air conditioner is detected to be in a fresh air mode, acquiring fresh air temperature and indoor temperature in real time or at regular time, and determining the working mode of the air conditioner;
when the working mode is a refrigeration mode, acquiring fresh air humidity;
when the fresh air humidity is smaller than the preset humidity, calculating a temperature difference value between the fresh air temperature and the indoor temperature, and judging whether the temperature difference value is larger than a preset threshold value, wherein when the fresh air humidity is larger than or equal to the preset humidity, the generation of condensation of the air conditioner is judged;
and when the temperature difference is larger than or equal to a preset threshold value, judging that the air conditioner generates condensation, and adjusting operation parameters of the air conditioner to enable the temperature difference to be smaller than or equal to the preset threshold value, wherein the operation parameters comprise the opening degree of the first air volume adjusting device and/or the opening degree of the second air volume adjusting device.
2. The condensation determination method of an air conditioner according to claim 1, further comprising, after the step of obtaining the humidity of the fresh air, the steps of:
and when the fresh air humidity is greater than or equal to the preset humidity, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
3. The condensation determination method of an air conditioner according to claim 1, wherein after the step of determining whether the temperature difference is greater than or equal to a preset threshold, further comprising:
calculating the fresh air dew point temperature according to the fresh air humidity and the fresh air temperature;
judging whether the fresh air dew point temperature is higher than the indoor temperature;
and when the fresh air dew point temperature is higher than the indoor temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
4. The method for determining condensation of an air conditioner according to claim 1, wherein the step of determining the operation mode of the air conditioner further comprises:
when the air conditioner is in a heating mode and the temperature difference between the fresh air temperature and the indoor temperature is smaller than a preset threshold value, acquiring the indoor humidity, and calculating the indoor dew point temperature according to the indoor humidity and the indoor temperature;
judging whether the indoor dew point temperature is greater than the fresh air temperature;
and when the indoor dew point temperature is higher than the fresh air temperature, judging that the air conditioner generates condensation, and adjusting the operating parameters of the air conditioner.
5. The condensation judging method of an air conditioner according to any one of claims 1 to 4, wherein the step of adjusting the operation parameter of the air conditioner comprises:
and increasing the opening degree of the second air volume adjusting device, or increasing the opening degree of the second air volume adjusting device and reducing the opening degree of the first air volume adjusting device.
6. An air conditioner is characterized by comprising a fresh air inlet, an internal circulation air inlet, an air outlet and an air duct communicated among the fresh air inlet, the internal circulation air inlet and the air outlet, wherein the air duct comprises a main air duct, a first sub air duct and a second sub air duct which are connected in parallel, the fresh air inlet is connected with the air outlet sequentially through the first sub air duct and the main air duct, the internal circulation air inlet is connected with the air outlet sequentially through the second sub air duct and the main air duct, the first sub air duct is provided with a first air volume adjusting device, the second sub air duct is provided with a second air volume adjusting device, the air conditioner further comprises a processor, a memory and a condensation judging program of the air conditioner, the condensation judging program of the air conditioner is stored on the memory and can run on the processor, and when being executed by the processor, the condensation judging program of the air conditioner realizes the condensation judging program of the air conditioner according to any one of claims 1 to 5 And (5) exposing the steps of the judging method.
7. A computer-readable storage medium storing a condensation determination program of an air conditioner, the condensation determination program of the air conditioner implementing the steps of the condensation determination method of the air conditioner according to any one of claims 1 to 5 when executed by a processor.
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