CN114440302A - Mobile air conditioner and control method thereof - Google Patents
Mobile air conditioner and control method thereof Download PDFInfo
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- CN114440302A CN114440302A CN202210188568.5A CN202210188568A CN114440302A CN 114440302 A CN114440302 A CN 114440302A CN 202210188568 A CN202210188568 A CN 202210188568A CN 114440302 A CN114440302 A CN 114440302A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a mobile air conditioner and a control method thereof, wherein the mobile air conditioner comprises a compressor, a condenser, a lower fan, a water pumping motor, a water receiving tank, a water pump, a first temperature sensor and a controller, wherein a low water level switch and a high water level switch are arranged in the water receiving tank; the controller is configured to control the running state of the compressor and/or the water pumping motor to increase the amount of condensed water in the water receiving tank until the high water level switch is closed, control the water pumping motor to run, stop the compressor and start the water pump when the detected temperature of the condenser reaches a first preset condenser temperature threshold value when a cleaning instruction is received, and control the water pumping motor to stop the compressor and start the water pump when the low water level switch is disconnected. According to the mobile air conditioner, the temperature of the condenser is controlled to reach the first preset condenser temperature threshold value, so that the generation of condensed water can be accelerated. When the water level in the water receiving tank is higher, the water pump is opened to drain water, so that foreign matters in the water receiving tank can be completely drained.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a mobile air conditioner and a control method thereof.
Background
In the related art, the air conditioner performs a short-time cooling and heating switching operation to generate a large amount of condensed water. The split type air conditioner can directly discharge the condensed water to the outside of the room through the drain pipe. However, since the indoor and outdoor units of the mobile air conditioner are installed in the same casing and are generally installed indoors, the condensed water cannot be discharged to the outside through the drain pipe, and therefore, a water receiving tank for receiving the condensed water is provided in the mobile air conditioner, and water in the water receiving tank is pumped out by a water pump. However, after the mobile air conditioner is operated for a long time, foreign matters can appear in the water receiving tank, block the water outlet and cause the capacity of the water receiving tank to become low, and even influence the normal use of a water pump and a water pumping motor, so that an improvement space exists.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a mobile air conditioner, which has a good effect of discharging foreign matters in a water receiving tank and a high efficiency.
Another objective of the present invention is to provide a control method of the mobile air conditioner.
A mobile air conditioner according to an embodiment of a first aspect of the present invention includes: the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer; the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; the water receiving tank is used for receiving the condensed water generated by the condenser, and a low water level switch and a high water level switch are arranged in the water receiving tank; the water beating motor is used for beating the condensed water in the water receiving tank onto the condenser; the water pump is connected with the water receiving tank; a first temperature sensor for detecting a temperature of the condenser; the controller is configured to control the running state of the compressor and/or the water pumping motor to increase the amount of condensed water in the water receiving tank when receiving a cleaning instruction; the temperature of the condenser is detected, when the temperature of the condenser reaches a first preset condenser temperature threshold value, the current operation frequency of the compressor is controlled to be unchanged until the high water level switch is closed, the water pumping motor is controlled to operate, the compressor is stopped and started, and when the low water level switch is disconnected, the water pump is closed.
According to the mobile air conditioner provided by the embodiment of the invention, the temperature of the condenser is controlled to reach the first preset condenser temperature threshold value, so that the effect and the speed of generating condensed water can be accelerated. When the water level in the water receiving tank is higher, the water pump is turned on again to drain water, foreign matters in the water receiving tank can be discharged completely, the water pumping motor is turned on again when the water level reaches a high water level, the water collecting speed of the water receiving tank can be improved, and meanwhile, the foreign matters in the water tank can be stirred by the water pumping motor during drainage so as to further facilitate the complete discharge of the foreign matters. In addition, whether the current water level of the condensate water of the water receiving tank is located at the preset high water level position or not is judged through the high water level switch, the judging mode is simple, the accuracy is high, the foreign matter discharging effect of the water receiving tank of the mobile air conditioner is good, foreign matters are prevented from blocking a water outlet or reducing the capacity of the water tank, the service life of the water pumping motor and the service life of the water pump are prevented from being influenced by the fact that the foreign matters are too much, and the service life and the working stability of the mobile air conditioner are improved.
In some embodiments, further comprising: a lower fan for flowing outside air through the condenser to adjust a temperature of the condenser;
the running state of the compressor and/or the water fetching motor is controlled to increase the amount of condensed water in the water receiving tank, the water fetching motor is controlled to stop, and/or the lower fan runs at the lowest wind speed.
In some embodiments, the mobile air conditioner further comprises: a second temperature sensor for detecting a temperature of the compressor; the controller is further configured to decrease the operating frequency of the compressor when the temperature of the compressor reaches a preset compressor temperature threshold before the high water level switch is closed.
In some embodiments, the controller is further configured to increase the operating frequency of the compressor when the detected temperature of the condenser does not reach the first preset condenser temperature threshold.
In some embodiments, the controller is further configured to operate the compressor at a maximum frequency when the detected condenser temperature does not reach a second preset condenser temperature threshold, wherein the second preset condenser temperature threshold is less than the first preset condenser temperature threshold.
In some embodiments, the controlling the operation of the water fetching motor is specifically configured such that the water fetching motor operates at a minimum rotational speed.
In some embodiments, the mobile air conditioner further comprises: a timer configured to start timing when the low level switch is turned off, and to turn off the water pump when a timing time of the timer reaches a predetermined time.
According to a control method of a mobile air conditioner in an embodiment of a second aspect of the invention, the mobile air conditioner comprises a compressor, a condenser, a lower fan, a water pumping motor, a water receiving tank, a water pump and a first temperature sensor, wherein a low water level switch and a high water level switch are arranged in the water receiving tank, the water pump is connected with the water receiving tank, and the first temperature sensor is used for detecting the temperature of the condenser; the control method comprises the following steps: when a cleaning instruction is received, increasing the rising rate of the water level of the condensed water in the water receiving tank; detecting the temperature of the condenser; when the detected temperature of the condenser reaches a first preset condenser temperature threshold value, controlling the current running frequency of the compressor to be unchanged until the high water level switch is closed; controlling the water pumping motor to operate, stopping the compressor and starting the water pump; and when the low water level switch is disconnected, the water pump is turned off.
In some embodiments, the mobile air conditioner further comprises: a lower fan for flowing outside air through the condenser to adjust a temperature of the condenser;
the specific step of controlling the running state of the compressor and/or the water fetching motor to increase the amount of the condensed water in the water receiving tank is to control the water fetching motor to stop and/or control the lower fan to run at the lowest wind speed.
In some embodiments, the operating frequency of the compressor is increased when the detected temperature of the condenser does not reach the first preset condenser temperature threshold.
In some embodiments, the compressor is operated at a maximum frequency when the detected condenser temperature does not reach a second preset condenser temperature threshold, wherein the second preset condenser temperature threshold is less than the first preset condenser temperature threshold.
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 flowchart of a control method of a mobile air conditioner according to an embodiment of the present invention.
Detailed Description
A mobile air conditioner according to an embodiment of the present invention is described below with reference to fig. 1, and includes a compressor, a condenser, a lower fan, a water receiving tank, a water pumping motor, a water pump, a first temperature sensor, and a controller.
The mobile air conditioner performs a refrigeration cycle of the mobile air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator in the present application. 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 mobile air conditioner can adjust the temperature of the indoor space throughout the cycle.
Specifically, the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser; the lower fan is used for cooling the compressor, the water receiving tank is used for receiving condensate water of the condenser, and the water beating motor is used for beating the condensate water in the water receiving tank onto the condenser. A low water level switch and a high water level switch are arranged in the water receiving tank. It should be noted that, the high water level switch and the low water level switch may be both sensors, the low water level switch is used to detect whether the condensed water in the water receiving tank is located at the preset low water level, and the high water level switch is used to detect whether the condensed water in the water receiving tank is located at the preset high water level. When the high water level switch is closed, the condensed water in the water receiving tank is higher than the preset high water level or is flush with the preset high water level; when the high water level switch is switched off, the condensed water in the water receiving tank is lower than the preset low water level or is flush with the preset high water level. The working principle of the low water level switch is the same as that of the high water level switch, and the detailed description is omitted here.
It can be understood that, because of the long-time operation back of mobile air conditioner, the foreign matter can appear in the water receiving tank, and the foreign matter can block up the outlet, and lead to the capacity of water receiving tank to become low, can influence the normal use of water pump, the motor of fetching water even. Therefore, the mobile air conditioner can enter a cleaning mode to discharge foreign matters in the water receiving tank. The water beating motor of the mobile air conditioner is used for beating the condensed water in the water tank to the condenser, so that the condenser can be cleaned, and meanwhile, the water beating motor can stir the water in the water receiving tank, so that the foreign matter sinking effect is prevented from being influenced.
The water pump is connected with the water receiving tank, so that condensed water in the water receiving tank can be conveniently discharged. The controller is configured to control an operation state of the compressor and/or the water-pumping motor to increase an amount of condensed water in the water-receiving tank when a cleaning instruction is received. It should be noted that, there may be various ways of controlling the operation state of the compressor and/or the water pumping motor to increase the amount of the condensed water in the water receiving tank, for example, the temperature of the condenser may be increased to facilitate increasing the generation rate of the condensed water, so as to increase the amount of the condensed water in the water receiving tank, or the condensed water in the water receiving tank may be prevented from evaporating, separating from the water receiving tank, and the like, which is not limited herein.
The first temperature sensor is used for detecting the temperature of the condenser. And when the detected temperature of the condenser reaches a first preset condenser temperature threshold value, controlling the current running frequency of the compressor to be unchanged until the high water level switch is closed. For example, the first predetermined condenser temperature threshold may satisfy 80 ℃ to 90 ℃. Further, the first preset condenser temperature threshold is equal to 85 ℃. If the temperature of the condenser is low, the efficiency and effect of the generation of the condensed water may be affected. Therefore, it is required to ensure that the temperature of the condenser in the cleaning mode reaches the first preset condenser temperature threshold to accelerate the effect and efficiency of the generation of the condensed water.
The current operating frequency of control compressor is unchangeable until high water level switch is closed, when high water level switch was closed, the water level of the comdenstion water in the water receiving tank is higher than or the parallel and level in predetermined high water level, can judge that the water level of the comdenstion water in the water receiving tank is higher, be enough to discharge the foreign matter in the water receiving tank, the operation of the motor of beating water is controlled, and then can stir the comdenstion water in the water receiving tank, prevent that the foreign matter from sinking the end, in addition, can also beat the comdenstion water to the condenser, in order to play the effect of clean condenser.
Further, the compressor is shut down and the water pump is started, and the water pump is turned off when the low level switch is turned off. When the low water level switch is switched off, the condensed water in the water receiving tank is lower than the preset low water level, so that the water pump can be closed, and the cleaning is finished.
According to the mobile air conditioner provided by the embodiment of the invention, the temperature of the condenser is controlled to reach the first preset condenser temperature threshold value, so that the speed and the effect of generating condensed water can be accelerated. When the water level in the water receiving tank is higher, the water pump is turned on again to drain water, foreign matters in the water receiving tank can be discharged completely, the water pumping motor is turned on when the water level reaches a high water level, the speed of condensed water collected by the water receiving tank can be increased, and meanwhile, the foreign matters in the water tank can be stirred by the water pumping motor during drainage so as to further facilitate the complete discharge of the foreign matters. In addition, whether the current water level of the condensate water of the water receiving tank is located at the preset high water level position or not is judged through the high water level switch, the judging mode is simple, the accuracy is high, the foreign matter discharging effect of the water receiving tank of the mobile air conditioner is good, the water outlet can be prevented from being blocked by foreign matters or the capacity of the water tank can be reduced, the service life of the water pumping motor and the service life of the water pump can be prevented from being influenced by the fact that the foreign matters are too much, and the service life and the working stability of the mobile air conditioner are improved.
In some embodiments, the mobile air conditioner further comprises: a lower fan for flowing outside air through the condenser to adjust a temperature of the condenser; the measuring body for controlling the operation state of the compressor and/or the water fetching motor to increase the condensed water in the water receiving tank is configured to control the water fetching motor to stop and/or the lower fan to operate at the lowest wind speed. For example, the water beating motor can be controlled to stop to prevent the condensed water in the water receiving tank from being atomized and evaporated, so that more condensed water can be collected in the water receiving tank quickly. Alternatively, operating the lower fan at the lowest wind speed may increase the temperature of the condenser, which may facilitate an increase in the rate at which the condenser produces condensate.
In some embodiments, the mobile air conditioner further comprises a second temperature sensor for detecting a temperature of the compressor; the controller is further configured to reduce the operating frequency of the compressor when the temperature of the compressor reaches a preset compressor temperature threshold before the high water level switch is closed. For example, the preset compressor temperature threshold may be 100 ℃ to 110 ℃, and further, the preset compressor temperature threshold may be 105 ℃. If the temperature of the compressor reaches the preset temperature threshold of the compressor, the temperature of the compressor is judged to be too high at the moment, and the compressor is protected to prevent the compressor from tripping, so that the running frequency of the compressor needs to be reduced to prolong the service life of the compressor.
In some embodiments, the controller is further configured to increase the operating frequency of the compressor when the detected temperature of the condenser does not reach the first preset condenser temperature threshold. The speed of generating the condensed water can be improved due to the higher temperature of the condenser, and the more condensed water can be collected, so that the temperature of the condenser can be improved by improving the frequency of the compressor, more condensed water can be generated, and the cleaning efficiency is improved.
Further, the controller is further configured to operate the compressor at a maximum frequency when the detected condenser temperature does not reach a second preset condenser temperature threshold, wherein the second preset condenser temperature threshold is less than the first preset condenser temperature threshold. For example, the second predetermined condenser temperature threshold may satisfy 40 ℃ to 50 ℃. Further, the first preset condenser temperature threshold is equal to 45 ℃. When the temperature of the condenser that detects does not reach the second and predetermines condenser temperature threshold value, it is low excessively to explain the temperature of condenser this moment, consequently, needs to improve the temperature of condenser fast, with the compressor with the highest frequency operation, can improve the temperature of condenser fast to in producing the water collector assemble more comdenstion water fast, improve the clean efficiency of mobile air conditioner.
In some embodiments, controlling the operation of the water fetching motor is specifically configured such that the water fetching motor is operated at a minimum rotational speed to further increase the temperature of the condenser to ensure a speed of generating the condensed water.
In some embodiments, the mobile air conditioner further comprises: and the timer is configured to start timing when the low water level switch is turned off and close the water pump when the timing time of the timer reaches a preset time. When the accumulated time of the timer reaches the preset time, the water pump is closed, so that the condensed water in the water receiving tank can be completely discharged, and the situation that the condensed water in the water receiving tank cannot be completely discharged is prevented.
According to the control method of the mobile air conditioner, the mobile air conditioner comprises a compressor, a condenser, a lower fan, a water pumping motor, a water receiving tank, a water pump and a first temperature sensor, wherein a low water level switch and a high water level switch are arranged in the water receiving tank, the water pump is connected with the water receiving tank, and the first temperature sensor is used for detecting the temperature of the condenser.
As shown in fig. 1, the control method of the mobile air conditioner includes the steps of:
s1, operating the mobile air conditioner;
and S2, when a cleaning instruction is received, controlling the running state of the compressor and/or the water pumping motor to increase the amount of condensed water in the water receiving tank so as to improve the cleaning efficiency.
Wherein, the user can send the instruction by operating the remote controller or the display panel of the mobile air conditioner. Also, the mobile air conditioner may include a cleaning indicator lamp to prompt the user that the mobile air conditioner is in a cleaning mode at this time. If the mobile air conditioner does not receive the instruction, the mobile air conditioner continues to operate in a normal mode, the cleaning indicator lamp is not turned on at the moment, and if the mobile air conditioner receives the cleaning instruction, the cleaning indicator lamp is turned on to prompt a user that the mobile air conditioner is in a cleaning mode at the moment.
S311, detecting the temperature of the condenser. When the detected temperature of the condenser reaches the first preset condenser temperature threshold, the current operating frequency of the compressor is controlled to be unchanged until the high water level switch is closed, for example, the first preset condenser temperature threshold may be 85 ℃. Therefore, the temperature of the condenser can be divided into a plurality of sections, and foreign matters can be cleaned more effectively by the mobile air conditioner through controlling different processing modes of each temperature section. The temperature of the condenser is higher at the moment, so that the quick and large-amount generation of condensed water can be facilitated, and the operating frequency of the compressor does not need to be changed.
S4, the high water level switch is closed, at the moment, the water level in the water receiving tank is larger than the preset high water level, more condensed water in the water receiving tank can be judged, and the condensed water in the water receiving tank can be effectively taken out.
S5, controlling the water pumping motor to operate, stopping the compressor and starting the water pump; at the moment, the water level of the condensed water in the water receiving tank is higher, the condensed water in the water receiving tank can be stirred by the operation of the water beating motor, and the foreign matters are prevented from sinking to the bottom so as to be smoothly discharged. The compressor is stopped, so that the temperature of the condenser can be reduced, and the atomization and evaporation of the condensed water are prevented.
And S6, the low water level switch is turned off, and when the low water level switch is turned off, the water level of the condensed water in the water receiving tank is judged to be lower than the low water level, the water pump can be turned off, and the cleaning work is finished. Of course, it can be understood that if the low water level switch is not turned off, the water level is higher, and the condensed water is not drained completely, so that the operation of the water pumping motor, the stop of the compressor and the turning on of the water pump need to be continuously controlled until the low water level switch is turned off.
And S7, starting timing by a timer when the low water level switch is turned off, and closing the water pump when the timing time of the timer reaches a preset time. Certainly, in order to further ensure that the condensed water in the water receiving tank is completely drained, when the low water level switch is turned off, the timer counts and accumulates the preset time, and then the next step is performed. For example, the predetermined time of the timer may be 30 s.
S8, the water pump is turned off, the water receiving tank is cleaned, the time of the timer is cleared, the cleaning indicator light is turned off at the moment, and the user is prompted to finish cleaning at the moment.
According to the control method of the mobile air conditioner, the temperature of the condenser is controlled to reach the first preset condenser temperature threshold value, so that the speed of generating condensed water can be accelerated. When the water level in the water receiving tank is higher, the water pump is turned on again to drain water, foreign matters in the water receiving tank can be discharged completely, the water pumping motor is turned on again when the water level reaches a high water level, the water collecting speed of the water receiving tank can be improved, and meanwhile, the foreign matters in the water tank can be stirred by the water pumping motor during drainage so as to further facilitate the complete discharge of the foreign matters. In addition, whether the current water level of the condensed water of the water receiving tank is located at the preset high water level position or not is judged through the high water level switch, the judging mode is simple, the accuracy is high, the foreign matter discharging effect of the water receiving tank of the mobile air conditioner is good, foreign matters are prevented from blocking a water outlet or reducing the capacity of the water tank, and the service life of the water pumping motor and the water pump is prevented from being influenced by the excessive foreign matters.
Further, the mobile air conditioner further comprises a lower fan for allowing outside air to flow through the condenser to adjust the temperature of the condenser; the specific step of controlling the running state of the compressor and/or the water fetching motor to increase the amount of the condensed water in the water receiving tank is to control the water fetching motor to stop and/or control the lower fan to run at the lowest wind speed. For example, the water beating motor can be controlled to stop to prevent the condensed water in the water receiving tank from being atomized and evaporated, so that more condensed water can be collected in the water receiving tank quickly. Alternatively, operating the lower fan at the lowest wind speed may increase the temperature of the condenser, which may facilitate an increase in the rate at which the condenser produces condensate.
Further, the mobile air conditioner further includes: and a second temperature sensor for detecting a temperature of the compressor, the control method of the mobile air conditioner including the steps of:
and S32, before the high water level switch is closed, when the temperature of the compressor reaches a preset compressor temperature threshold value, reducing the running frequency of the compressor. It will be appreciated that when the temperature of the compressor does not reach the preset compressor temperature threshold, then the frequency of the compressor need not be reduced.
If the temperature of the compressor is too high, the conditions such as trip and the like can be caused, the working stability and the service life of the compressor are not facilitated, and therefore when the second temperature sensor detects that the temperature of the compressor is too high, the running frequency of the compressor can be reduced to protect the compressor.
In some embodiments, a control method of a mobile air conditioner includes the steps of:
and when the detected temperature of the condenser does not reach a first preset condenser temperature threshold value, increasing the running frequency of the compressor. The speed of generating the condensed water can be improved due to the higher temperature of the condenser, and the more condensed water can be collected, so that the temperature of the condenser can be improved by improving the frequency of the compressor, more condensed water can be generated, and the cleaning efficiency is improved. And until the detected temperature of the condenser reaches a first preset condenser temperature threshold value and the high water level switch is closed, judging that the water in the water receiving tank is high, and starting to drain water.
And S312, when the detected temperature of the condenser does not reach a second preset condenser temperature threshold value, the compressor runs at the highest frequency, wherein the second preset condenser temperature threshold value is smaller than the first preset condenser temperature threshold value. When the temperature of the condenser that detects does not reach the second and predetermines condenser temperature threshold value, it is low excessively to explain the temperature of condenser this moment, consequently, needs to improve the temperature of condenser fast, with the compressor with the highest frequency operation, can improve the temperature of condenser fast to in producing the water collector assemble more comdenstion water fast, improve the clean efficiency of mobile air conditioner.
S313, when the detected temperature of the condenser is between the first preset condenser temperature threshold and the second preset condenser temperature threshold, the compressor only raises the frequency, the temperature of the condenser can be raised to the first preset condenser temperature threshold without operating at the highest frequency, and the control mode is reasonable.
Other configurations of the mobile air conditioner according to the embodiment of the present invention, such as a pressure reducer, an expansion valve, etc., and operations thereof are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
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. A mobile air conditioner, comprising:
the refrigerant circulation loop circulates the refrigerant in a loop formed by the compressor, the condenser, the expansion valve, the evaporator, the four-way valve and the pressure reducer;
the compressor is used for compressing low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas and discharging the high-temperature and high-pressure refrigerant gas to the condenser;
the water receiving tank is used for receiving the condensed water generated by the condenser, and a low water level switch and a high water level switch are arranged in the water receiving tank;
the water beating motor is used for beating the condensed water in the water receiving tank onto the condenser;
the water pump is connected with the water receiving tank;
a first temperature sensor for detecting a temperature of the condenser;
the controller is configured to control the running state of the compressor and/or the water pumping motor to increase the amount of condensed water in the water receiving tank when receiving a cleaning instruction;
the temperature of the condenser is detected, when the temperature of the condenser reaches a first preset condenser temperature threshold value, the current operation frequency of the compressor is controlled to be unchanged until the high water level switch is closed, the water pumping motor is controlled to operate, the compressor is stopped and started, and when the low water level switch is disconnected, the water pump is closed.
2. The mobile air conditioner of claim 1, further comprising: a lower fan for flowing outside air through the condenser to adjust a temperature of the condenser;
the measuring body for controlling the operation state of the compressor and/or the water fetching motor to increase the condensed water in the water receiving tank is configured to control the water fetching motor to stop and/or the lower fan to operate at the lowest wind speed.
3. The mobile air conditioner of claim 1, further comprising:
a second temperature sensor for detecting a temperature of the compressor;
the controller is further configured to decrease the operating frequency of the compressor when the temperature of the compressor reaches a preset compressor temperature threshold before the high water level switch is closed.
4. The mobile air conditioner of claim 1, wherein the controller is further configured to,
and when the detected temperature of the condenser does not reach the first preset condenser temperature threshold value, improving the running frequency of the compressor.
5. The mobile air conditioner of claim 4, wherein the controller is further configured to,
when the detected temperature of the condenser does not reach a second preset condenser temperature threshold value, the compressor runs at the highest frequency, wherein the second preset condenser temperature threshold value is smaller than the first preset condenser temperature threshold value.
6. The mobile air conditioner according to any one of claims 1 to 5, further comprising:
a timer configured to start timing when the low level switch is turned off, and to turn off the water pump when a timing time of the timer reaches a predetermined time.
7. The control method of the mobile air conditioner is characterized in that the mobile air conditioner comprises a compressor, a condenser, a lower fan, a water pumping motor, a water receiving tank, a water pump and a first temperature sensor, wherein a low water level switch and a high water level switch are arranged in the water receiving tank, the water pump is connected with the water receiving tank, and the first temperature sensor is used for detecting the temperature of the condenser;
the control method comprises the following steps:
when a cleaning instruction is received, controlling the running state of the compressor and/or the water pumping motor to increase the amount of condensed water in the water receiving tank;
detecting the temperature of the condenser;
when the detected temperature of the condenser reaches a first preset condenser temperature threshold value, controlling the current running frequency of the compressor to be unchanged until the high water level switch is closed;
controlling the water pumping motor to operate, stopping the compressor and starting the water pump;
and when the low water level switch is disconnected, the water pump is turned off.
8. The control method of the mobile air conditioner according to claim 7, wherein the mobile air conditioner further comprises: a lower fan for flowing outside air through the condenser to adjust a temperature of the condenser;
the specific step of controlling the running state of the compressor and/or the water fetching motor to increase the amount of the condensed water in the water receiving tank is to control the water fetching motor to stop and/or control the lower fan to run at the lowest wind speed.
9. The control method of a mobile air conditioner according to claim 7 or 8,
and when the detected temperature of the condenser does not reach the first preset condenser temperature threshold value, improving the running frequency of the compressor.
10. The control method of a mobile air conditioner according to claim 9, wherein the compressor is operated at the highest frequency when the detected temperature of the condenser does not reach a second preset condenser temperature threshold value, wherein the second preset condenser temperature threshold value is less than the first preset condenser temperature threshold value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210188568.5A CN114440302A (en) | 2022-02-28 | 2022-02-28 | Mobile air conditioner and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210188568.5A CN114440302A (en) | 2022-02-28 | 2022-02-28 | Mobile air conditioner and control method thereof |
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| CN115200104A (en) * | 2022-07-15 | 2022-10-18 | 广东美的制冷设备有限公司 | Air conditioner, self-cleaning method thereof, controller and readable storage medium |
| WO2024016816A1 (en) * | 2022-07-20 | 2024-01-25 | 青岛海尔空调器有限总公司 | Mobile air conditioner and control method therefor |
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