CN115978758A - Air conditioner and fresh air control method of air conditioner - Google Patents
Air conditioner and fresh air control method of air conditioner Download PDFInfo
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- CN115978758A CN115978758A CN202211729754.1A CN202211729754A CN115978758A CN 115978758 A CN115978758 A CN 115978758A CN 202211729754 A CN202211729754 A CN 202211729754A CN 115978758 A CN115978758 A CN 115978758A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an air conditioner and a fresh air control method of the air conditioner, wherein the air conditioner comprises: a fresh air module; an outdoor temperature sensor; an outdoor humidity sensor; an indoor temperature sensor; a controller configured to: when the air conditioner is started and the fresh air module starts to work, the outdoor dew point temperature is obtained according to the outdoor temperature and the outdoor humidity, the inner surface temperature of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe, whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero or not is judged, and when the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero, the fresh air module is controlled to adjust the running state. From this, the controller is through acquireing outdoor dew point temperature and fresh air duct internal surface temperature to whether the difference according to judging outdoor dew point temperature and fresh air duct internal surface temperature is greater than zero control new trend module's work, make the introduction volume of outdoor new trend more reasonable, promote user's use comfort, reduce the risk of condensation.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a fresh air control method of the air conditioner.
Background
Be provided with the new trend module in the air conditioner, the new trend module can be introduced indoor with outdoor new trend, accomplishes indoor outer air exchange to reach indoor air-purifying, improve the room air quality, and improve the effect of room air oxygen content, guarantee indoor user's use travelling comfort.
In the related art, the fresh air module generally operates according to the set fresh air volume, cannot be combined with environmental factors such as temperature and humidity for adjustment, and is single in control mode. After the summer rain, the temperature and the humidity of outdoor air are often all very high, and the thermal insulation performance of new trend module is limited, and when outdoor high temperature and high humidity's new trend introduced indoorly, not only influenced air conditioning equipment's heat transfer performance, still can lead to the inboard condensation that produces of new trend, the condensation water gathering is at the new trend pipe bending point, not only can block up the new trend pipe, but also can produce the noise. In addition, under the condition that the temperature difference of indoor and outdoor air is large, poor experience can be brought to a user by introducing improper fresh air volume.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the present invention is to provide an air conditioner, which can control the operation of a fresh air module according to the outdoor dew point temperature and the temperature of the inner surface of a fresh air pipe, so that the introduction amount of outdoor fresh air is more reasonable, the use comfort of users can be improved, and the risk of condensation can be reduced.
An air conditioner according to an embodiment of the present invention includes: a housing; a heat exchanger disposed within the enclosure; the fan is arranged in the shell, the fan is operated to introduce airflow outside the shell into the shell and exchange heat through the heat exchanger to form heat exchange airflow, and the heat exchange airflow is driven by the fan to be output to the outside of the shell; the fresh air module comprises a fresh air pipe, and the fresh air pipe is used for introducing outdoor fresh air into the room; an outdoor temperature sensor for detecting an outdoor temperature; an outdoor humidity sensor for detecting an outdoor temperature; an indoor temperature sensor for detecting an indoor temperature; a controller electrically connected to the outdoor temperature sensor, the outdoor humidity sensor, the indoor temperature sensor, and the fresh air module, respectively, the controller configured to: when the air conditioner is started and the fresh air module starts to work, the outdoor dew point temperature is obtained according to the outdoor temperature and the outdoor humidity, the inner surface temperature of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe, whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero or not is judged, and when the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero, the fresh air module is controlled to adjust the running state.
From this, through configuring the controller, the controller can judge whether outdoor dew point temperature and fresh air pipe internal surface temperature's difference is greater than zero according to the outdoor dew point temperature who acquires and fresh air pipe internal surface temperature to can be according to the judged result, control adjustment fresh air module's running state, thereby make the introduction volume of outdoor new trend more reasonable, not only can promote user comfort level like this, can reduce the risk of condensation moreover.
In some examples of the invention, the controller is configured to: and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a first level, and controlling the fresh air module to adjust the running state.
In some examples of the invention, the controller is configured to: and when the condensation risk of the fresh air module is in a first level, controlling the fresh air module to operate at the highest gear.
In some examples of the invention, after the fresh air module condensation risk is of a first level, the controller is configured to: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a first level; judging the relationship between the operation time length of the fresh air module when the condensation risk is in a first level and the first preset time length; and when the running time of the fresh air module when the condensation risk is in a first level is longer than the first preset time, controlling the fresh air module to stop running.
In some examples of the invention, the controller is configured to: and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a second level, and controlling the fresh air module to adjust the running state.
In some examples of the invention, the controller is configured to: when the condensation risk of the fresh air module is in a second level, judging the current operation gear of the fresh air module; when the running gear of the fresh air module at the moment is the highest gear, controlling the fresh air module to maintain the running of the highest gear; and when the running gear of the fresh air module at the moment is not the highest gear, controlling the fresh air module to increase one gear to run.
In some examples of the invention, after the fresh air module condensation risk is of a second level, the controller is configured to: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level; judging the relationship between the operation time length of the fresh air module when the condensation risk is in a second level and the second preset time length; and when the running time of the fresh air module when the condensation risk is in a second level is longer than a second preset time, controlling the fresh air module to stop running, wherein the first preset time is shorter than the second preset time.
The fresh air control method of the air conditioner according to the embodiment of the invention is characterized by comprising the following steps: the air conditioner is started, the fresh air module starts to work, the outdoor dew-point temperature is obtained according to the outdoor temperature and the outdoor humidity, and the temperature of the inner surface of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe; judging whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than zero or not; when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a first level, and controlling the fresh air module to adjust the running state; and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is in a second level, and controlling the fresh air module to adjust the running state.
In some examples of the present invention, when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air duct is greater than a preset temperature difference value, determining that the condensation risk of the fresh air module is a first level, and controlling the fresh air module to adjust the operating state further includes: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a first level; judging the relationship between the operation time length of the fresh air module when the condensation risk is in a first level and the first preset time length; when the operation duration of the fresh air module when the condensation risk is in the first level is longer than the first preset duration, the fresh air module stops operating.
In some examples of the present invention, when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air duct is greater than zero and not greater than a preset temperature difference value, determining that the condensation risk of the fresh air module is a second level, and controlling the fresh air module to adjust the operating state further includes: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level; judging the relationship between the operation time length of the fresh air module when the condensation risk is in a second level and the second preset time length; and when the running time of the fresh air module when the condensation risk is in a second level is longer than a second preset time, the fresh air module stops running.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a partial flow chart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a partial flowchart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 5 is a partial flow chart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 6 is a partial flowchart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a flowchart of a fresh air control method of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a partial flow diagram of step S3 according to an embodiment of the present invention;
fig. 9 is a partial flowchart of step S4 according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
An air conditioner according to an embodiment of the present invention, which may employ a fresh air control method of the air conditioner, will be described with reference to fig. 1 to 9.
As shown in fig. 1 to 2 in conjunction, an air conditioner according to the present invention may mainly include: casing, heat exchanger, fan, new trend module, outdoor temperature sensor, outdoor humidity transducer, indoor temperature sensor and controller. Wherein, heat exchanger and fan all set up in the casing, and the casing can play the cover to heat exchanger and fan like this and establish the guard action, can prevent that external foreign matter from corroding to and the striking of external force leads to the damage of heat exchanger and fan structure, thereby can promote the structural reliability of heat exchanger and fan, can promote the structural reliability of air conditioner, guarantee that the air conditioner can normally work.
Further, be provided with heat transfer air intake and heat transfer air outlet on the casing, the air conditioner during operation, can pass through the operation of fan with the outside air current of casing in the heat transfer air intake introduces the casing, then form the heat transfer air current via the heat exchanger heat transfer, and the heat transfer air current can further be under the drive of fan, through heat transfer air outlet to the outside output of casing, thereby can make the air conditioner to the suitable wind of indoor transport temperature, realize the conditioning action of air conditioner to indoor temperature, guarantee the normal operating of air conditioner, satisfy user's user demand.
Specifically, the air conditioner of the present application is used in combination with an outdoor unit, wherein the heat exchanger may be an evaporator or a condenser, and the heat exchanger in the outdoor unit is a condenser or an evaporator, and the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, an expansion valve, a condenser, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged. The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle. Further, the fan among the air conditioner of this application can accelerate the velocity of flow of the wind that flows through the heat exchanger to can promote the heat exchange efficiency of heat exchanger, promote the working property of air conditioner.
Further, the controller is respectively with be connected with outdoor temperature sensor, outdoor humidity transducer, indoor temperature sensor and new trend module electricity respectively, the controller can be configured to: when the air conditioner is started and the fresh air module starts to work, the outdoor dew point temperature is obtained according to the outdoor temperature and the outdoor humidity, the inner surface temperature of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe, whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero or not is judged, and when the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero, the fresh air module is controlled to adjust the running state.
Specifically, the new trend module can be under the effect of fan, introduce indoor with outdoor new trend, realize the exchange of indoor outer air, thereby can reach the indoor air purification, improve the indoor air quality, and improve the effect of indoor air oxygen content, can guarantee indoor user's use travelling comfort, but consider the temperature of outdoor new trend and indoor air, the humidity difference, and the introduction volume of outdoor new trend all can influence the heat transfer performance of air conditioner, and then influence indoor user's comfort level, under outdoor environment is in the high temperature and high humidity's the condition, introduce outdoor new trend in a large number and can produce the condensation because the cold and hot intersection even at the new tuber pipe internal surface, consequently, need be according to outdoor dew point temperature and new tuber pipe internal surface temperature, the introduction volume to outdoor new trend is controlled.
The air conditioner can also comprise a storage unit and a calculation unit, wherein the outdoor temperature sensor, the outdoor humidity sensor and the indoor temperature sensor are electrically connected with the calculation unit, the calculation unit can receive the outdoor temperature detected by the outdoor temperature sensor, the outdoor humidity detected by the outdoor humidity sensor and the indoor temperature detected by the indoor temperature sensor, calculate the outdoor dew point temperature according to the outdoor temperature and the outdoor humidity, calculate the inner surface temperature of the fresh air pipe according to the indoor temperature, the outdoor temperature and the heat conduction coefficient of the fresh air pipe, calculate the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe, and store preset time, running time and the working gear of the fresh air module in the storage unit.
Furthermore, the storage unit and the calculation unit are respectively electrically connected with the controller, and the controller is also electrically connected with the fresh air module, so that the controller can acquire the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe from the calculation unit, and can judge whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than zero, and by configuring the controller, the controller can judge whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than zero, and then the controller can control the operation of the fresh air module according to the judgment result, so that the fresh air module can operate at different working gears under different conditions.
When the controller judges that the difference between the outdoor dew point temperature and the fresh air pipe inner surface temperature is greater than zero, the outdoor temperature is over-high, the outdoor humidity is over-high, at the moment, if outdoor fresh air is introduced in a large quantity, the heat exchange performance of the air conditioner is influenced, the regulation of the indoor temperature is influenced, and air cooling and heat exchange in the inner wall of the fresh air pipe can be caused to generate condensation instead, the condensation water can block the fresh air pipe, and in the process of introducing the fresh air, noise can be generated, the use comfort of indoor users is influenced.
From this, through configuring the controller, the controller can judge whether outdoor dew point temperature and fresh air pipe internal surface temperature's difference is greater than zero according to the outdoor dew point temperature who acquires and fresh air pipe internal surface temperature to can be according to the judged result, control adjustment fresh air module's running state, thereby make the introduction volume of outdoor new trend more reasonable, not only can promote user comfort level like this, can reduce the risk of condensation moreover.
According to some embodiments of the invention, the controller shown in connection with fig. 3-4 may be configured to: when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than the preset temperature difference value, the condensation risk of the fresh air module is judged to be in a first grade, and the fresh air module is controlled to adjust the running state. Specifically, the storage unit is pre-stored with a preset temperature difference value, when the controller judges that the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than the preset temperature difference value, the temperature and the humidity of outdoor fresh air are overhigh at the moment, the outdoor fresh air is introduced into a room, the heat insulation performance of the fresh air pipe is limited, the outdoor fresh air is mixed with cold air in the fresh air pipe, condensation is easily generated, the controller judges that the condensation risk of the fresh air module is in a first level, the controller controls the fresh air module to adjust the running state, so that the working speed of the fan can be adjusted, compared with the condition that the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than the preset temperature difference value, the fresh air module can change the air speed and the air volume introduced into the room by the outdoor fresh air, on the premise that the working performance of the air conditioner is guaranteed, the indoor air quality is effectively improved, the use requirements of users are met, the use comfort of the users is guaranteed, and the risk of condensation generation can be prevented.
Further, the controller is configured to: when the condensation risk of the fresh air module is in a first level, the fresh air module is controlled to operate at the highest gear. Specifically, the storage unit prestores a working gear of the fresh air module, when the controller judges that the condensation risk of the fresh air module is in a first level, the temperature and the humidity of outdoor fresh air are overhigh at the moment, the outdoor fresh air is introduced into a room, because the heat insulation performance of the fresh air pipe is limited, the outdoor fresh air is mixed with cold air in the fresh air pipe, condensation is easily generated, the controller can control the fresh air module to operate at the highest gear, and thus when the controller judges that the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than a preset temperature difference value, the controller is further configured to control the fresh air module to operate at the highest gear.
Further, after the fresh air module condensation risk is of a first level, the controller is configured to: acquiring the running time of a fresh air module when the condensation risk of the fresh air module is in a first level; judging the size relation between the operation time length of the fresh air module when the condensation risk is in a first level and a first preset time length; when the operation time of the fresh air module when the condensation risk is in the first level is longer than a first preset time, the fresh air module is controlled to stop operating. Specifically, the storage unit has a first preset time length, after the controller judges that the condensation risk of the fresh air module is in a first grade, the controller can acquire the running time length when the condensation risk of the fresh air module is in the first grade, and judge the relation between the running time length of the fresh air module when the condensation risk is in the first grade and the first preset time length, when the controller judges that the running time length of the fresh air module when the condensation risk is in the first grade is greater than the first preset time length, the introduction amount of outdoor fresh air is too large at the moment, the risk of condensation generation in the fresh air pipe is easy to occur, the influence on the indoor environment can be caused by continuously introducing a large amount of indoor fresh air, the discomfort of a user can be increased, through further configuration of the controller, the controller can control the fresh air module to stop running, so that the risk of condensation generation in the fresh air pipe can be reduced while the introduction of the fresh air in the air controller control chamber can be ensured, the fresh air function control of the air conditioner can be intelligent and reliable, and the use experience of the user can be improved.
According to some embodiments of the invention, as shown in connection with fig. 5-6, the controller is configured to: when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than the preset temperature difference value, the condensation risk of the fresh air module is judged to be a second level, and the fresh air module is controlled to adjust the running state. Specifically, the storage unit is pre-stored with a preset temperature difference value, the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is judged to be larger than zero by the controller, and when the difference is not larger than the preset temperature difference value, the temperature and the humidity of the outdoor fresh air are higher at the moment, the outdoor fresh air is introduced into the room, the heat insulation performance of the fresh air pipe is limited, the outdoor fresh air is mixed with cold air in the fresh air pipe, condensation is easily generated, the controller judges that the condensation risk of the fresh air module is in a second level, the operation state of the fresh air module is controlled by the controller to adjust the operation state, so that the working speed of the fan can be adjusted, compared with the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero, and when the difference is not larger than the preset temperature difference value, the fresh air module can change the air speed and the air volume introduced into the room, thereby on the premise of ensuring the working performance of the air conditioner, the indoor air quality is effectively improved, the use requirement of a user is met, the use comfort level of the user is ensured, and the risk of condensation generation can also be prevented.
Further, the controller is configured to: when the condensation risk of the fresh air module is in a second level, judging the current running gear of the fresh air module; when the operation gear of new trend module this moment is the highest gear, control new trend module and maintain the operation of highest gear. Specifically, the storage unit has the work gear of new trend module in advance, when the controller judges that new trend module condensation risk is second grade, the operation gear of new trend module this moment can be judged to the controller, if the operation gear of controller judgement new trend module this moment is the highest gear, the operating speed of the new trend module of explanation this moment is the highest rotational speed, the velocity of flow of air in the new trend pipe is the highest velocity of flow, the controller control new trend module maintains the operation of highest gear, thermal insulation performance at the new trend pipe is limited like this, outdoor new trend fuses with the cold air in the new trend pipe, under the condition that the condensation produces easily, improve the rotational speed of fan, accelerate the velocity of flow of air in the new trend pipe, thereby can accelerate the dispersion of the outdoor new trend of the higher humidity in new trend pipe, can reduce the production of the condensation in the new trend pipe, and then can prevent the condensation jam in the new trend, or produce the noise, user's use comfort can be improved.
Further, the controller may be further configured to: when the operation gear of new trend module this moment is the non-highest gear, control new trend module increase gear operation. Specifically, when the controller judges that the condensation risk of the fresh air module is at a second level, the controller can judge an operation gear of the fresh air module at the moment, if the controller judges that the operation gear of the fresh air module at the moment is not at a highest gear, the working speed of the fresh air module at the moment is not at a highest speed, the flow speed of air in the fresh air pipe is low, under the condition that the heat preservation performance of the fresh air pipe is limited, the time for outdoor fresh air to be blended with cold air in the fresh air pipe can be increased, condensation can be easily generated, the controller can control the fresh air module to increase the gear operation, the rotating speed of the fan can be increased, the flow speed of air in the fresh air pipe is increased, the dispersion of outdoor fresh air with high humidity in the fresh air pipe can be accelerated, the generation of condensation in the fresh air pipe can be reduced, further, the blockage of condensation in the fresh air pipe can be prevented, or noise can be generated, and the use comfort level of a user can be improved.
Further, after the fresh air module condensation risk is of a second level, the controller is configured to: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level; judging the size relation between the operation time length of the fresh air module when the condensation risk is at a second level and a second preset time length; and when the running time of the fresh air module when the condensation risk is in the second level is longer than a second preset time, controlling the fresh air module to stop running. Specifically, the storage unit has a second preset time duration, after the controller judges that the condensation risk of the fresh air module is at the second level, the controller can acquire the running time duration when the condensation risk of the fresh air module is at the second level, and judge the relation between the running time duration when the condensation risk of the fresh air module is at the second level and the second preset time duration, when the controller judges that the running time duration when the condensation risk of the fresh air module is at the second level is greater than the second preset time duration, the introduction amount of outdoor fresh air is too large at the moment, the risk of condensation generation in the fresh air pipe is easy to occur, the influence on the indoor environment can be caused by continuously introducing a large amount of indoor fresh air, further discomfort of a user can be increased, through further configuration of the controller, the controller can control the fresh air module to stop running, therefore, the risk of condensation generation in the fresh air pipe can be reduced while the indoor introduction of the air conditioner is ensured, the fresh air function control of the air conditioner can be intelligent and reliable, and the use experience of the user can be improved.
In some embodiments of the invention, the first preset time is shorter than the second preset time, so that when the humidity of the outdoor air is too high, the introduction time of the outdoor air is shortened, the introduction amount of the outdoor air is reduced, and further, the time for the outdoor air to be mixed with cold air in the fresh air pipe is reduced, and the risk of condensation generated in the fresh air pipe can be reduced, so that the controller can control the working gear of the fresh air module more reasonably, the matching degree of the introduction amount of the outdoor fresh air, the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is better, the introduction amount of the outdoor fresh air can be further more reasonable, and the use comfort of a user is improved.
It should be noted that, in practical application, the first preset duration and the second preset duration limiting range can be adjusted as required, so that the use requirements of users in different scenes can be met, the intellectualization and humanization of the air conditioner can be further improved, the application scene of the air conditioner is widened, and the use experience of the users can be further improved.
Referring to fig. 7, a fresh air control method for an air conditioner according to an embodiment of the present invention may include the following steps:
s1, starting an air conditioner, starting a fresh air module to work, acquiring outdoor dew point temperature according to outdoor temperature and outdoor humidity, and acquiring the inner surface temperature of a fresh air pipe according to indoor temperature, outdoor temperature and the heat conductivity coefficient of the fresh air pipe;
s2, judging whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than zero or not;
s3, when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is larger than a preset temperature difference value, judging that the condensation risk of the fresh air module is in a first level, and controlling the fresh air module to adjust the running state;
and S4, when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is in a second level, and controlling the fresh air module to adjust the running state.
Specifically, when the air conditioner is turned on, the controller may first obtain the outdoor dew point temperature according to the outdoor temperature and the outdoor humidity, obtain the fresh air duct inner surface temperature according to the indoor temperature, the outdoor temperature, and the heat conductivity coefficient of the fresh air duct, then determine whether a difference between the outdoor dew point temperature and the fresh air duct inner surface temperature is greater than zero, and control the fresh air module to adjust the operation state according to the determination result.
When the controller judges that the difference of outdoor dew point temperature and fresh air pipe internal surface temperature is greater than the temperature difference default, the controller judges that fresh air module condensation risk is first grade, the controller can control fresh air module adjustment running state, thereby can effectively control the introduction amount of the unsuitable outdoor new trend of temperature and humidity, can avoid introducing the unsuitable outdoor new trend of temperature and humidity indoors, and then can guarantee the heat transfer performance of air conditioner, can prevent to produce the condensation in the fresh air pipe, can guarantee user's use comfort level.
When the difference that the controller judges outdoor dew point temperature and fresh air pipe internal surface temperature is greater than zero and is not more than the temperature difference default, the controller judges fresh air module condensation risk and is the second grade, the controller can control fresh air module adjustment running state, thereby can effective control temperature and the unsuitable outdoor new trend's of humidity introduction volume, can avoid introducing the unsuitable outdoor new trend of temperature and humidity indoor, and then can guarantee the heat transfer performance of air conditioner, can prevent the intraductal condensation that produces of fresh air, can guarantee user's comfort level in use.
Further, as shown in fig. 8, step S3 may mainly include:
s3-1, acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a first level;
s3-2, judging the size relation between the operation time length of the fresh air module when the condensation risk is in a first level and a first preset time length;
and S3-3, when the operation time of the fresh air module when the condensation risk is in the first level is longer than a first preset time, stopping the operation of the fresh air module.
Further, after the fresh air module condensation risk is of a first level, the controller is configured to: acquiring the running time of a fresh air module when the condensation risk of the fresh air module is in a first level; judging the size relation between the operation time length of the fresh air module when the condensation risk is in a first level and a first preset time length; when the operation time of the fresh air module when the condensation risk is in the first level is longer than a first preset time, the fresh air module is controlled to stop operating. Specifically, the storage unit has a first preset time length, after the controller judges that the condensation risk of the fresh air module is in a first grade, the controller can acquire the running time length when the condensation risk of the fresh air module is in the first grade, and judge the relation between the running time length of the fresh air module when the condensation risk is in the first grade and the first preset time length, when the controller judges that the running time length of the fresh air module when the condensation risk is in the first grade is greater than the first preset time length, the introduction amount of outdoor fresh air is too large at the moment, the risk of condensation generation in the fresh air pipe is easy to occur, the influence on the indoor environment can be caused by continuously introducing a large amount of indoor fresh air, the discomfort of a user can be increased, through further configuration of the controller, the controller can control the fresh air module to stop running, so that the risk of condensation generation in the fresh air pipe can be reduced while the introduction of the fresh air in the air controller control chamber can be ensured, the fresh air function control of the air conditioner can be intelligent and reliable, and the use experience of the user can be improved.
Further, as shown in fig. 9, step S4 may mainly include:
s4-1, acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level;
s4-2, judging the size relation between the operation time length of the fresh air module when the condensation risk is in a second level and a second preset time length;
and S4-3, when the operation time of the fresh air module when the condensation risk is in the second level is longer than a second preset time, stopping the operation of the fresh air module.
Further, after the fresh air module condensation risk is of a second level, the controller is configured to: acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level; judging the size relation between the operation time length of the fresh air module when the condensation risk is in a second level and a second preset time length; and when the operation duration of the fresh air module when the condensation risk is in the second level is longer than a second preset duration, controlling the fresh air module to stop operating. Specifically, the storage unit has a second preset time duration, after the controller judges that the condensation risk of the fresh air module is at the second level, the controller can acquire the running time duration when the condensation risk of the fresh air module is at the second level, and judge the relation between the running time duration when the condensation risk of the fresh air module is at the second level and the second preset time duration, when the controller judges that the running time duration when the condensation risk of the fresh air module is at the second level is greater than the second preset time duration, the introduction amount of outdoor fresh air is too large at the moment, the risk of condensation generation in the fresh air pipe is easy to occur, the influence on the indoor environment can be caused by continuously introducing a large amount of indoor fresh air, further discomfort of a user can be increased, through further configuration of the controller, the controller can control the fresh air module to stop running, therefore, the risk of condensation generation in the fresh air pipe can be reduced while the indoor introduction of the air conditioner is ensured, the fresh air function control of the air conditioner can be intelligent and reliable, and the use experience of the user can be improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An air conditioner, comprising:
a housing;
a heat exchanger disposed within the enclosure;
the fan is arranged in the shell, the operation of the fan introduces airflow outside the shell into the shell and exchanges heat through the heat exchanger to form heat exchange airflow, and the heat exchange airflow is driven by the fan to be output to the outside of the shell;
the fresh air module comprises a fresh air pipe, and the fresh air pipe is used for introducing outdoor fresh air into the room;
an outdoor temperature sensor for detecting an outdoor temperature;
an outdoor humidity sensor for detecting an outdoor temperature;
an indoor temperature sensor for detecting an indoor temperature;
a controller electrically connected to the outdoor temperature sensor, the outdoor humidity sensor, the indoor temperature sensor, and the fresh air module, respectively, the controller configured to:
when the air conditioner is started and the fresh air module starts to work, the outdoor dew point temperature is obtained according to the outdoor temperature and the outdoor humidity, the inner surface temperature of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe, whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero or not is judged, and when the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is larger than zero, the fresh air module is controlled to adjust the running state.
2. The air conditioner of claim 1, wherein the controller is configured to: and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a first grade, and controlling the fresh air module to adjust the running state.
3. The air conditioner of claim 2, wherein the controller is configured to: and when the condensation risk of the fresh air module is in a first level, controlling the fresh air module to operate at the highest gear.
4. The air conditioner of claim 3, wherein when the fresh air module condensation risk is at a first level, the controller is configured to:
acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a first level;
judging the relationship between the operation time length of the fresh air module when the condensation risk is in a first level and the first preset time length;
and when the running time of the fresh air module when the condensation risk is in a first level is longer than the first preset time, controlling the fresh air module to stop running.
5. The air conditioner of claim 2, wherein the controller is configured to: and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a second level, and controlling the fresh air module to adjust the running state.
6. The air conditioner of claim 5, wherein the controller is configured to: when the condensation risk of the fresh air module is in a second level, judging the current operation gear of the fresh air module;
when the running gear of the fresh air module at the moment is the highest gear, controlling the fresh air module to maintain the running of the highest gear;
when the operation gear of the fresh air module is not the highest gear, the fresh air module is controlled to increase by one gear for operation.
7. The air conditioner of claim 6, wherein when the fresh air module condensation risk is at a second level, the controller is configured to:
acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level;
judging the relationship between the operation time length of the fresh air module when the condensation risk is in a second level and the second preset time length;
and when the running time of the fresh air module when the condensation risk is in a second level is longer than a second preset time, controlling the fresh air module to stop running, wherein the first preset time is shorter than the second preset time.
8. A fresh air control method of an air conditioner is characterized by comprising the following steps:
the air conditioner is started, the fresh air module starts to work, the outdoor dew point temperature is obtained according to the outdoor temperature and the outdoor humidity, and the inner surface temperature of the fresh air pipe is obtained according to the indoor temperature, the outdoor temperature and the heat conductivity coefficient of the fresh air pipe;
judging whether the difference between the outdoor dew point temperature and the inner surface temperature of the fresh air pipe is greater than zero or not;
when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a first level, and controlling the fresh air module to adjust the running state;
and when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air pipe is greater than zero and not greater than a preset temperature difference value, judging that the condensation risk of the fresh air module is a second level, and controlling the fresh air module to adjust the running state.
9. The fresh air control method of an air conditioner according to claim 8, wherein when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air duct is greater than a preset temperature difference value, the determining that the condensation risk of the fresh air module is a first level, and controlling the fresh air module to adjust the operation state further comprises:
acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a first level;
judging the relationship between the operation time length of the fresh air module when the condensation risk is in a first level and the first preset time length;
when the operation duration of the fresh air module when the condensation risk is in the first level is longer than the first preset duration, the fresh air module stops operating.
10. The fresh air control method of claim 8, wherein when the difference between the outdoor dew point temperature and the temperature of the inner surface of the fresh air duct is greater than zero and not greater than a preset temperature difference value, the method determines that the condensation risk of the fresh air module is at a second level, and the controlling the fresh air module to adjust the operating state further comprises:
acquiring the running time of the fresh air module when the condensation risk of the fresh air module is in a second level;
judging the relationship between the operation time length of the fresh air module when the condensation risk is in a second level and the second preset time length;
and when the operation time of the fresh air module when the condensation risk is in a second level is longer than the second preset time, the fresh air module stops operating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729754.1A CN115978758A (en) | 2022-12-30 | 2022-12-30 | Air conditioner and fresh air control method of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211729754.1A CN115978758A (en) | 2022-12-30 | 2022-12-30 | Air conditioner and fresh air control method of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115978758A true CN115978758A (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211729754.1A Pending CN115978758A (en) | 2022-12-30 | 2022-12-30 | Air conditioner and fresh air control method of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115978758A (en) |
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2022
- 2022-12-30 CN CN202211729754.1A patent/CN115978758A/en active Pending
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