CN108709301B - Condensed water discharge method, air conditioner and storage medium - Google Patents
Condensed water discharge method, air conditioner and storage medium Download PDFInfo
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- CN108709301B CN108709301B CN201810308839.XA CN201810308839A CN108709301B CN 108709301 B CN108709301 B CN 108709301B CN 201810308839 A CN201810308839 A CN 201810308839A CN 108709301 B CN108709301 B CN 108709301B
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
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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
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- F24F11/63—Electronic processing
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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Abstract
The invention provides a condensed water discharge method, which is characterized in that the liquid level height of condensed water in a water receiving tray is calculated according to the deformation quantity of an elastic component during the refrigeration operation of an air conditioner, and the operation of a drainage pump is controlled or the alarm prompt of the fault of the drainage pump is output according to the comparison result of the liquid level height and the preset liquid level. The invention also provides an air conditioner and a storage medium. The invention utilizes the deformation quantity of the elastic component for fixing the water pan to calculate the liquid level height of the condensed water in the water pan, thereby controlling the operation of the drainage pump or outputting an alarm prompt, avoiding the overflow of the condensed water and the leakage of the internal machine caused by the loss of the drainage function when the water level float switch is blocked by foreign matters in the existing drainage pump, and improving the operation reliability of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a condensed water discharge method, an air conditioner and a storage medium.
Background
When the air conditioner operates in a refrigerating mode, condensate water can be generated on the surface of the evaporator, the condensate water falls along the evaporator and is collected into the water receiving tray below the evaporator, and therefore the condensate water in the water receiving tray needs to be discharged in time to inhibit bacteria from breeding and pollute air.
At present, most of air conditioners are internally provided with a drainage pump, and the drainage pump is used for discharging condensed water collected in a water receiving tray. Because the current drain pump is mainly controlled by the water level float switch, when the water level float switch is blocked by foreign matters, the drain pump loses the drainage function, the water level of condensed water is higher than the water receiving disc and overflows, the water leakage of an internal machine is caused, and the operation reliability of the air conditioner is influenced.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a condensate water discharge method, aiming at improving the operation reliability of an air conditioner.
In order to achieve the purpose, the condensed water discharge method provided by the invention is applied to an air conditioner, a water receiving tray of the air conditioner is fixed through an elastic component, the elastic component is elastically deformed along with the weight change of the water receiving tray, and a drainage pump for discharging condensed water in the water receiving tray is arranged in the air conditioner;
the condensed water discharge method includes the steps of:
monitoring the deformation quantity of the elastic component when the air conditioner operates in a refrigerating mode, and calculating the liquid level height of condensed water in the water receiving tray according to the deformation quantity;
and controlling the operation of the drainage pump or outputting an alarm prompt of the fault of the drainage pump according to the comparison result of the liquid level height and the preset liquid level.
Further, the step of monitoring the deformation amount of the elastic component during the refrigeration operation of the air conditioner and calculating the liquid level height of the condensed water in the water pan according to the deformation amount comprises the following steps:
detecting the deformation amount of the elastic component every a first preset time interval;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating the liquid level increase height of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and calculating the liquid level height of the condensed water in the water receiving tray according to the initial liquid level height of the condensed water in the water receiving tray and the liquid level increasing height.
Further, the air conditioner further comprises a liquid level detection unit arranged on the water pan, the step of monitoring the deformation amount of the elastic component during the refrigeration operation of the air conditioner and calculating the liquid level height of the condensed water in the water pan according to the deformation amount comprises the following steps:
detecting the deformation quantity of the elastic assembly and first liquid level data fed back by the liquid level detection unit at intervals of a second preset time length;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating second liquid level data of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and performing weighted calculation on the first liquid level data and the second liquid level data to obtain the liquid level height of the condensed water in the water pan.
Further, the step of controlling the operation of the drain pump or outputting the alarm prompt of the fault of the drain pump according to the comparison result of the liquid level height and the preset liquid level comprises the following steps:
when the liquid level of the condensed water is detected to be higher than a first preset liquid level, controlling the drainage pump to start running;
when the liquid level height of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level height of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the drainage pump;
wherein the second preset liquid level is higher than the first preset liquid level.
Further, the draining pump comprises a main draining pump and a standby draining pump, and the step of controlling the operation of the draining pump or outputting the alarm prompt of the draining pump fault according to the comparison result of the liquid level height and the preset liquid level comprises the following steps:
when the liquid level height of the condensed water is detected to reach a first preset liquid level, controlling the main drainage pump to start to operate;
when the liquid level of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the main drainage pump and/or controlling the standby drainage pump to start and operate;
wherein the second preset liquid level is higher than the first preset liquid level.
Further, after the standby drainage pump is started to operate for a fourth preset time, if the liquid level height of the condensed water is higher than the second preset liquid level, the air conditioner is controlled to stop, and an alarm prompt of the standby drainage pump fault is output.
Further, when the liquid level height of the condensed water is detected to be lower than a third preset liquid level, or the time that the liquid level height of the condensed water is lower than the first preset liquid level is longer than a fifth preset time length, the main drainage pump or the standby drainage pump is turned off.
Further, the liquid level detection unit is an electrode type liquid level sensor.
The invention further provides an air conditioner, which comprises an elastic component, a memory, a processor and a condensed water discharge program which is stored in the memory and can be operated on the processor; wherein:
the elastic component is used for calculating the liquid level height of condensed water in the water receiving tray;
the condensed water drain program implements the steps of the condensed water drain method as described above when executed by the processor.
The present invention also proposes a storage medium storing a condensed water drain program which, when executed by a processor, implements the steps of the condensed water drain method as described above.
According to the condensed water discharge method provided by the embodiment of the invention, the liquid level height of condensed water in the water receiving tray is calculated according to the deformation quantity of the elastic component during the refrigeration operation of the air conditioner, and the operation of the drainage pump is controlled or the alarm prompt of the fault of the drainage pump is output according to the comparison result of the liquid level height and the preset liquid level. The condensed water discharging method of the invention calculates the liquid level height of the condensed water in the water receiving tray by utilizing the deformation quantity of the elastic component for fixing the water receiving tray, thereby controlling the operation of the draining pump or outputting the alarm prompt, avoiding the overflow of the condensed water and the leakage of the internal machine caused by the loss of the draining function when the water level float switch is blocked by foreign matters in the existing draining pump, and improving the operation reliability of the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a hardware configuration of an embodiment of an air conditioner according to the present invention;
FIG. 2 is a schematic flow chart of a condensate water discharge method according to a first embodiment of the present invention;
FIG. 3 is a schematic flow chart of a condensate water discharge method according to a second embodiment of the present invention;
FIG. 4 is a schematic flow chart of a condensate water discharge method according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating the first embodiment of step S10 in FIGS. 2, 3 and 4;
fig. 6 is a flowchart illustrating a second embodiment of step S10 in fig. 2, 3, and 4.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware structure of an embodiment of an air conditioner of the present invention.
As shown in fig. 1, the air conditioner 100 may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display unit (Display) and an input unit such as an interactive interface, in the present invention, the air conditioner 100 may interact with a user terminal during software operation, when performing parameter setting or debugging on the air conditioner 100, a tester or a setter may input data information by using the user interface 1003, and the optional user interface 1003 may further include a standard wired interface or a standard wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the air conditioner 100 may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, air quality sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display unit according to the brightness of ambient light, and a proximity sensor that turns on the display unit and/or a backlight when detecting that a person walks into the air conditioner 100. As the environment detecting element, the air quality sensor may be a temperature sensor, a humidity sensor, a carbon dioxide sensor, and a PM2.5 sensor, and the air quality sensor in this embodiment is preferably a temperature and humidity sensor, so as to detect the indoor temperature and humidity of the environment where the air conditioner is located in real time; of course, the air conditioner 100 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again. In addition, in order to further accurately calculate the liquid level height of the condensed water in the water pan, a liquid level detection unit is further arranged on the water pan, the liquid level detection unit is preferably an electrode type liquid level sensor, and in other embodiments, the liquid level detection unit can also be a temperature sensor, a distance sensor and the like.
Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 does not constitute a limitation of the air conditioner 100 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The main solution of the embodiment of the invention is as follows: and calculating the liquid level height of condensed water in the water receiving tray according to the deformation of the elastic component during the refrigerating operation of the air conditioner, and controlling the operation of the drainage pump or outputting an alarm prompt of the fault of the drainage pump according to the comparison result of the liquid level height and the preset liquid level. The condensed water discharging method of the invention calculates the liquid level height of the condensed water in the water receiving tray by utilizing the deformation quantity of the elastic component for fixing the water receiving tray, thereby controlling the operation of the draining pump or outputting the alarm prompt, avoiding the overflow of the condensed water and the leakage of the internal machine caused by the loss of the draining function when the water level float switch is blocked by foreign matters in the existing draining pump, and improving the operation reliability of the air conditioner.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, and a control program therein.
In the air conditioner 100 shown in fig. 1, a water pan of the air conditioner 100 is fixed by an elastic component, the elastic component is elastically deformed along with the change of the weight of the water pan, and a discharge pump for discharging condensed water in the water pan is further arranged in the air conditioner; the network interface 1004 is mainly used for connecting a background server or a big data cloud and performing data communication with the background server or the big data cloud; the user interface 1003 is mainly used for connecting a client (user end) and receiving an input user instruction; and the processor 1001 may call the condensed water drain program stored in the memory 1005 and perform the following operations:
monitoring the deformation quantity of the elastic component when the air conditioner operates in a refrigerating mode, and calculating the liquid level height of condensed water in the water receiving tray according to the deformation quantity;
and controlling the operation of the drainage pump or outputting an alarm prompt of the fault of the drainage pump according to the comparison result of the liquid level height and the preset liquid level.
Further, the processor 1001 may also call the condensed water drain program stored in the memory 1005 to perform the following operations:
detecting the deformation amount of the elastic component every a first preset time interval;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating the liquid level increase height of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and calculating the liquid level height of the condensed water in the water receiving tray according to the initial liquid level height of the condensed water in the water receiving tray and the liquid level increasing height.
Further, the air conditioner further includes a liquid level detection unit disposed on the water pan, and the processor 1001 may further call a condensed water discharge program stored in the memory 1005 to perform the following operations:
detecting the deformation quantity of the elastic assembly and first liquid level data fed back by the liquid level detection unit at intervals of a second preset time length;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating second liquid level data of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and performing weighted calculation on the first liquid level data and the second liquid level data to obtain the liquid level height of the condensed water in the water pan.
Further, the processor 1001 may also call the condensed water drain program stored in the memory 1005 to perform the following operations:
when the liquid level of the condensed water is detected to be higher than a first preset liquid level, controlling the drainage pump to start running;
when the liquid level height of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level height of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the drainage pump;
wherein the second preset liquid level is higher than the first preset liquid level.
Further, the drain pump includes a main drain pump and a backup drain pump, and the processor 1001 may further call a condensed water discharge program stored in the memory 1005 to perform the following operations:
when the liquid level height of the condensed water is detected to reach a first preset liquid level, controlling the main drainage pump to start to operate;
when the liquid level of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the main drainage pump and/or controlling the standby drainage pump to start and operate;
wherein the second preset liquid level is higher than the first preset liquid level.
Further, the processor 1001 may also call the condensed water drain program stored in the memory 1005 to perform the following operations:
and after the standby drainage pump is started to operate for a fourth preset time, if the liquid level height of the condensed water is higher than the second preset liquid level, controlling the air conditioner to stop, and outputting an alarm prompt of the fault of the standby drainage pump.
Further, the processor 1001 may also call the condensed water drain program stored in the memory 1005 to perform the following operations:
and when the liquid level height of the condensed water is detected to be lower than a third preset liquid level, or the time that the liquid level height of the condensed water is lower than the first preset liquid level is longer than a fifth preset time length, closing the main drainage pump or the standby drainage pump.
Further, the liquid level detection unit is an electrode type liquid level sensor.
The invention further provides a condensate water discharge method.
Referring to fig. 2, fig. 2 is a schematic flow chart of a condensate discharging method according to a first embodiment of the present invention.
In this embodiment, the water pan of the air conditioner is fixed by an elastic component, the elastic component is elastically deformed along with the weight change of the water pan, and a drainage pump for draining condensed water in the water pan is further arranged in the air conditioner;
the condensed water discharge method includes the steps of:
s10: monitoring the deformation quantity of the elastic component when the air conditioner operates in a refrigerating mode, and calculating the liquid level height of condensed water in the water receiving tray according to the deformation quantity;
in this embodiment, the water collector of air conditioner is fixed through an elastic component, elastic component can take place elastic deformation along with the weight change of water collector. During the cooling operation of the air conditioner, when the surface temperature of the evaporator coil of the air conditioner is lower than the dew point temperature of the air inlet flow, the vapor condensation can occur on the surface of the evaporator coil to generate condensed water. The surface temperature of the indoor evaporator is generally 7-12 ℃, the temperature of the condensed water is about 10-15 ℃, the temperature is lower, and the higher the moisture content in the air is, the more condensed water is generated. After the comdenstion water flowed into the water collector by the coil pipe surface of evaporimeter, caused the whole weight of water collector to increase, the weight of water collector increases, and the elastic component who supports the water collector must take place elastic deformation, and the displacement takes place for the displacement in elastic component's deformation direction for the water collector, and the displacement volume that the water collector took place is equal to elastic component's deformation volume generally speaking moreover, therefore in other embodiments, also can replace elastic component's deformation volume through the displacement variation volume that detects the water collector. Each elastic component has an elastic coefficient, and in a compressible range, the elastic component can be elastically deformed by applying an acting force to the elastic component, so that the weight change of the water receiving tray can be determined by the deformation quantity and the elastic coefficient of the elastic component, the increment of condensed water in the water receiving tray is further determined, and the liquid level height of the condensed water in the water receiving tray can be determined according to the specification parameters of the water receiving tray, such as the water receiving tray is of a square or cuboid or cylinder structure, and the bottom wall area of the water receiving tray.
S20: and controlling the operation of the drainage pump or outputting an alarm prompt of the fault of the drainage pump according to the comparison result of the liquid level height and the preset liquid level.
After the liquid level height of the condensed water in the water receiving tray is calculated, the liquid level height of the condensed water can be compared with a preset liquid level, and different control actions are executed according to the comparison result. If the liquid level of the condensed water is detected to be higher than a first preset liquid level, controlling a drainage pump of the air conditioner to start running to execute drainage work; and the liquid level height that detects the comdenstion water continues to rise to the second and predetermines the liquid level, perhaps the liquid level height of comdenstion water still is higher than first predetermined liquid level after a period of time, can further judge that the drain pump has taken place the trouble this moment, the drainage function has been lost, the hidden danger that causes air conditioner indoor set to leak is overflowed to the comdenstion water in the water collector this moment, the warning suggestion of drain pump trouble can be exported, the drain pump of this air conditioner of suggestion user or maintenance station breaks down, in time maintenance is needed, and then the operational reliability of air conditioner is improved.
The liquid level height of the condensed water calculated in each time is the current liquid level height of the condensed water at the moment, validity of monitoring data is guaranteed, and operation reliability of the air conditioner is improved.
According to the condensed water discharge method provided by the embodiment of the invention, the liquid level height of condensed water in the water receiving tray is calculated according to the deformation quantity of the elastic component during the refrigeration operation of the air conditioner, and the operation of the drainage pump is controlled or the alarm prompt of the fault of the drainage pump is output according to the comparison result of the liquid level height and the preset liquid level. The condensed water discharging method of the invention calculates the liquid level height of the condensed water in the water receiving tray by utilizing the deformation quantity of the elastic component for fixing the water receiving tray, thereby controlling the operation of the draining pump or outputting the alarm prompt, avoiding the overflow of the condensed water and the leakage of the internal machine caused by the loss of the draining function when the water level float switch is blocked by foreign matters in the existing draining pump, and improving the operation reliability of the air conditioner.
Further, referring to fig. 5, the first embodiment of step S10, based on the condensed water discharging method of the above embodiment, includes:
s11 a: detecting the deformation amount of the elastic component every a first preset time interval;
in this embodiment, since the condensed water flows out from the water collecting tray under the evaporator of the indoor unit, the flow rate thereof is generally related to the moisture content of the air, the dew point temperature, the indoor ambient temperature, and the like. And based on the fact that the generating speed of the condensed water is low, which is well known to those skilled in the art, the weight change of the water tray in a short time is small, and in order to ensure the validity of the monitoring data, the deformation quantity of the elastic component can be detected every first preset time interval, so as to obtain more effective detection data. In this embodiment, the first preset time period may be selected from a range of 3min to 10min, preferably 5min, and in other embodiments, the first preset time period may be set separately.
S12: calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
according to the above, when the liquid level height of the condensed water in the water pan is calculated through the deformation amount of the elastic component, the elastic component is elastically deformed by the gravity action of the water pan mainly according to the Newton's third law, so that the weight change of the water pan can be calculated according to the deformation amount and the elastic coefficient of the elastic component, and the weight increment of the condensed water in the water pan can be calculated. The elastic coefficient of the elastic component can be preset in a memory of the air conditioner so as to be called at any time, and can be preferentially acquired from a cloud end or set information when the condensed water increment of the water pan is calculated.
S13 a: calculating the liquid level increase height of the condensed water according to the condensed water increment and the specification parameters of the water pan;
after the condensed water increment in the water pan is obtained, the volume change of the condensed water in the water pan can be obtained through calculation according to the calculation formula rho of the density, and then according to the volume change and the specification parameters of the water pan, if the water pan is in a regular structure such as a cube, a cuboid or a cylinder, the liquid level increase height of the condensed water can be directly calculated according to the bottom wall area of the water pan.
S14 a: and calculating the liquid level height of the condensed water in the water receiving tray according to the initial liquid level height of the condensed water in the water receiving tray and the liquid level increasing height.
After the liquid level increase height of the condensed water is obtained, the liquid level height of the condensed water in the water receiving tray can be obtained according to the sum of the initial liquid level height of the condensed water in the water receiving tray and the liquid level increase height. The initial liquid level height can be obtained according to a liquid level detection unit arranged in the water pan, and when the initial liquid level height is 0, the liquid level increasing height can be directly regarded as the liquid level height of condensed water in the water pan.
Further, referring to fig. 6, the second embodiment of step S10, based on the condensed water discharge method of the above embodiment, includes:
s11 b: detecting the deformation quantity of the elastic assembly and first liquid level data fed back by the liquid level detection unit at intervals of a second preset time length;
in this embodiment, the air conditioner still including set up in the liquid level detection unit of water collector, the liquid level detection unit is fixed in the diapire of water collector follows the water collector reciprocates. The liquid level detection unit can be electrode type level sensor, temperature sensor, water level switch etc. and the liquid level change in the preferred electrode type level sensor monitoring water collector of this application. In addition, since the condensed water flows from the water collecting tray under the evaporator of the indoor unit, the flow rate of the condensed water is generally related to the moisture content of the air, the dew point temperature, the indoor environment temperature, and the like. And based on the low generating speed of the condensed water in the air conditioner known by the technical personnel in the field, the weight change of the water tray in a short time is small, and in order to ensure the validity of the monitoring data, the deformation quantity of the elastic component and the first liquid level data fed back by the liquid level detection unit can be detected every second preset time interval, so as to obtain more effective detection data. In this embodiment, the second preset time period may be selected from a range of 3min to 10min, preferably 5min, and in other embodiments, the second preset time period may be set separately.
S12: calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
according to the above, when the liquid level height of the condensed water in the water pan is calculated through the deformation amount of the elastic component, the elastic component is elastically deformed by the gravity action of the water pan mainly according to the Newton's third law, so that the weight change of the water pan can be calculated according to the deformation amount and the elastic coefficient of the elastic component, and the weight increment of the condensed water in the water pan can be calculated. The elastic coefficient of the elastic component can be preset in a memory of the air conditioner so as to be called at any time, and can be preferentially acquired from a cloud end or set information when the condensed water increment of the water pan is calculated.
S13 b: calculating second liquid level data of the condensed water according to the condensed water increment and the specification parameters of the water pan;
after the condensed water increment in the water receiving tray is obtained, the volume change of the condensed water in the water receiving tray can be obtained through calculation according to a calculation formula rho of density, wherein the rho is m/v, and then according to the volume change and specification parameters of the water receiving tray, if the water receiving tray is of a regular structure such as a cube, a cuboid or a cylinder, the second liquid level data of the condensed water can be directly calculated according to the area of the bottom wall of the water receiving tray.
S14 b: and performing weighted calculation on the first liquid level data and the second liquid level data to obtain the liquid level height of the condensed water in the water pan.
Because there may be a difference between the second liquid level data of the condensed water calculated according to the deformation amount of the elastic component and the first liquid level data of the condensed water detected according to the liquid level detection unit, in order to ensure the accuracy and precision of the liquid level height of the finally obtained condensed water, the first liquid level data and the second liquid level data of the condensed water can be weighted and calculated after being obtained. Specifically, a weighting coefficient can be determined according to the percentage of the difference between the two to the self, and the final liquid level height can be obtained through weighted average calculation.
Further, referring to fig. 3, a second embodiment of the condensed water drain method is proposed based on the above, and in this embodiment, step S20 includes:
s21: when the liquid level of the condensed water is detected to be higher than a first preset liquid level, controlling the drainage pump to start running;
in this embodiment, the first predetermined liquid is preset according to the working condition of the heating, ventilation or air conditioning system and the depth of the water pan, and is mainly used to control the drainage pump to open and perform the drainage function. The height of the first preset liquid level is generally set to be 40-60% of the depth of the water receiving tray, and can be additionally set in other embodiments, when the liquid level height of condensed water in the water receiving tray reaches the first preset liquid level, a corresponding control signal is generated to control the drainage pump to operate and drain the water receiving tray, so that the influence on the operation reliability of the air conditioner is reduced.
S22: when the liquid level height of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level height of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the drainage pump;
wherein the second preset liquid level is higher than the first preset liquid level.
After the drainage pump is started to drain water, the liquid level height of condensed water in the water receiving tray generally falls below a first preset liquid level along with the lapse of time, but if the drainage pump fails to have a drainage function, the liquid level height of the condensed water in the water receiving tray shows a continuous rising trend, and at the moment, an alarm prompt of the fault of the drainage pump of the air conditioner needs to be output to a user or a maintenance station so as to ensure the operation reliability of the air conditioner. And if the liquid level of the condensed water is detected to be higher than the second preset liquid level or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than the third preset time length, outputting an alarm prompt of the fault of the drainage pump to a user or a maintenance station. The second preset liquid level is generally set to 71% -80% of the depth of the water receiving tray, and can be set additionally in other embodiments. The third preset duration is the duration required by increasing 1% -9% of the depth of the water pan on the basis of the first preset liquid level.
Further, referring to fig. 4, a third embodiment of the condensed water discharge method is proposed based on the above, in which the drain pump includes a main drain pump and a backup drain pump, and step S20 includes:
s23: when the liquid level height of the condensed water is detected to reach a first preset liquid level, controlling the main drainage pump to start to operate;
in this embodiment, in order to avoid the air conditioner from losing the drainage function when the drainage pump fails and further from affecting the operation reliability of the air conditioner, another drainage pump is added to the original drainage pump, and for the sake of convenience of distinction, the original drainage pump is set as the main drainage pump, and the drainage pump added separately is set as the backup drainage pump. When the liquid level of the condensed water in the water receiving tray reaches 40% -60% of the depth of the water receiving tray, a corresponding first control signal is generated to control the main drainage pump to start to operate and drain the water receiving tray, so that the influence on the operation reliability of the air conditioner is reduced.
S24: when the liquid level of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the main drainage pump and/or controlling the standby drainage pump to start and operate;
wherein the second preset liquid level is higher than the first preset liquid level.
Similarly, after the main drainage pump is started to drain, the liquid level height of the condensed water in the water receiving tray generally falls below a first preset liquid level along with the lapse of time, but if the main drainage pump fails and loses the drainage function, the liquid level height of the condensed water in the water receiving tray presents a continuous rising trend, and at the moment, an alarm prompt of the fault of the drainage pump of the air conditioner needs to be output to a user or a maintenance station so as to ensure the operation reliability of the air conditioner. And if the liquid level height of the condensed water is detected to be higher than 71% -80%, or the time for the liquid level height of the condensed water to be higher than the first preset liquid level is longer than a third preset time, outputting an alarm prompt of the drainage pump fault to a user or a maintenance station. The third preset duration is a duration required for increasing the depth of the water pan by 1% -9% on the basis of the first preset liquid level, and in other embodiments, the third preset duration may be set separately.
In other embodiments, when it is detected that the liquid level of the condensed water is higher than 71% -80%, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time, a corresponding second control signal may be generated to control the standby drain pump to start operating the docking tray to drain water.
In another embodiment, when it is detected that the liquid level of the condensed water is higher than 71% -80%, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time, a corresponding second control signal may be generated to control the standby drain pump to start operating to drain the water tray, and an alarm prompt of a fault of the main drain pump is output to a user or a maintenance station.
Further, after the standby drainage pump is started to operate for a fourth preset time, if the liquid level height of the condensed water is higher than the second preset liquid level, the air conditioner is controlled to stop, and an alarm prompt of the standby drainage pump fault is output.
In this embodiment, based on the above, after the drainage by the backup drainage pump is started, the liquid level of the condensed water in the water receiving tray will generally fall below the second preset liquid level over time, but if the backup drainage pump fails and loses the drainage function, the liquid level of the condensed water in the water receiving tray will show a trend of continuously rising, and at this time, to ensure the operational reliability of the air conditioner, the air conditioner needs to be controlled to stop, so as to avoid the continuous increase of the condensed water in the water receiving tray, and meanwhile, an alarm prompt of the failure of the backup drainage pump is output to a user or a maintenance station. If the liquid level height of the condensed water is detected to be still higher than the second preset liquid level after the standby draining pump is started to operate for the fourth preset time, the standby draining pump is judged to have a fault, a third control signal is further generated to control the air conditioner to stop, and meanwhile, an alarm prompt of the fault of the standby draining pump is output to a user or a maintenance station. The fourth preset duration is a duration required for increasing the depth of the water pan by 1% -5% on the basis of the second preset liquid level, and the fourth preset duration may be additionally set in other embodiments.
Further, when the liquid level height of the condensed water is detected to be lower than a third preset liquid level, or the time that the liquid level height of the condensed water is lower than the first preset liquid level is longer than a fifth preset time length, the main drainage pump or the standby drainage pump is turned off.
In this embodiment, when the main drainage pump is not in fault, after the main drainage pump is started to drain water, the liquid level height of condensed water in the water pan falls below a first preset liquid level along with the lapse of time, and if the liquid level height of the condensed water is detected to be lower than a third preset liquid level, or the time that the liquid level height of the condensed water is lower than the first preset liquid level exceeds a fifth preset time duration, it can be determined that most of the condensed water in the water pan is drained, the possibility of indoor unit water leakage caused by overflow of the condensed water cannot occur in a short time, and the operational reliability of the air conditioner cannot be threatened, and at this time, the main drainage pump can be turned off in order to reduce energy consumption. In this embodiment, the third preset liquid level is generally set to 20% to 30% of the depth of the water pan, and may be set separately in other embodiments. The fifth preset duration is the time required for the liquid level to fall to the third preset level on the basis of the first preset level.
Similarly, in another embodiment, when the main drain pump fails to start the standby drain pump to drain, and the standby drain pump fails, the level of the condensed water in the water pan falls below the first preset level over time, and if it is detected that the level of the condensed water is lower than the third preset level, or the level of the condensed water is lower than the first preset level for longer than a fifth preset time, it can be determined that most of the condensed water in the water pan has been drained, and the possibility of water leakage of the indoor unit due to overflow of the condensed water does not occur in a short time, and the operational reliability of the air conditioner is not threatened, and at this time, the standby drain pump can be turned off to reduce energy consumption. In this embodiment, the third preset liquid level is generally set to 20% to 30% of the depth of the water pan, and may be set separately in other embodiments. The fifth preset duration is the time required for the liquid level to fall to the third preset level on the basis of the second preset level.
Furthermore, an embodiment of the present invention also proposes a storage medium storing a condensed water drain program that implements the steps of the condensed water drain method as described above when executed by a processor.
The method implemented when the condensate water draining program is executed may refer to various embodiments of the condensate water draining method of the present invention, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A method for discharging condensed water is applied to an air conditioner, and is characterized in that a water pan of the air conditioner is fixed through an elastic component, the elastic component is elastically deformed along with the weight change of the water pan, and a drainage pump for discharging the condensed water in the water pan is arranged in the air conditioner;
the condensed water discharge method includes the steps of:
monitoring the deformation quantity of the elastic component when the air conditioner operates in a refrigerating mode, and calculating the liquid level height of condensed water in the water receiving tray according to the deformation quantity;
controlling the operation of the drainage pump or outputting an alarm prompt of the fault of the drainage pump according to the comparison result of the liquid level height and the preset liquid level;
the air conditioner also comprises a liquid level detection unit arranged on the water pan, the deformation of the elastic component during the refrigeration operation of the air conditioner is monitored, and the liquid level height of the condensed water in the water pan is calculated according to the deformation, and the steps comprise:
detecting the deformation quantity of the elastic assembly and first liquid level data fed back by the liquid level detection unit at intervals of a second preset time length;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating second liquid level data of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and performing weighted calculation on the first liquid level data and the second liquid level data to obtain the liquid level height of condensed water in the water receiving tray, wherein the weighting coefficient is determined according to the percentage of the difference between the first liquid level data and the second liquid level data in the water receiving tray.
2. A condensate discharge method according to claim 1, wherein the step of monitoring the amount of deformation of the resilient member during cooling operation of the air conditioner and calculating the level of condensate in the drip tray based on the amount of deformation comprises:
detecting the deformation amount of the elastic component every a first preset time interval;
calculating the condensed water increment in the water pan according to the deformation quantity and the elastic coefficient of the elastic component;
calculating the liquid level increase height of the condensed water according to the condensed water increment and the specification parameters of the water pan;
and calculating the liquid level height of the condensed water in the water receiving tray according to the initial liquid level height of the condensed water in the water receiving tray and the liquid level increasing height.
3. The condensate discharge method according to any one of claims 1-2, wherein the step of controlling operation of the drain pump or outputting an alarm prompt for a drain pump malfunction according to the comparison result between the liquid level height and the preset liquid level comprises:
when the liquid level of the condensed water is detected to be higher than a first preset liquid level, controlling the drainage pump to start running;
when the liquid level height of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level height of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the drainage pump;
wherein the second preset liquid level is higher than the first preset liquid level.
4. The condensate discharge method of claim 3, wherein the drain pump includes a main drain pump and a backup drain pump, and the step of controlling the operation of the drain pump or outputting an alarm prompt for a drain pump malfunction according to the comparison result between the liquid level height and a preset liquid level comprises:
when the liquid level height of the condensed water is detected to reach a first preset liquid level, controlling the main drainage pump to start to operate;
when the liquid level of the condensed water is detected to be higher than a second preset liquid level, or the time that the liquid level of the condensed water is higher than the first preset liquid level is longer than a third preset time length, outputting an alarm prompt of the fault of the main drainage pump and/or controlling the standby drainage pump to start and operate;
wherein the second preset liquid level is higher than the first preset liquid level.
5. The method as claimed in claim 4, wherein after the standby drain pump is operated for a fourth preset time, if the level of the condensed water is higher than the second preset level, the air conditioner is controlled to stop, and an alarm prompt for a malfunction of the standby drain pump is outputted.
6. The condensate water discharge method according to claim 4, wherein the main drain pump or the standby drain pump is turned off when it is detected that the level of the condensate water is lower than a third preset level, or the time during which the level of the condensate water is lower than the first preset level is longer than a fifth preset time.
7. The condensed water drain method according to claim 1, wherein the liquid level detecting unit is an electrode type liquid level sensor.
8. An air conditioner, characterized in that, the air conditioner comprises an elastic component, a memory, a processor and a condensed water discharging program stored in the memory and operated on the processor; wherein:
the elastic component is used for calculating the liquid level height of condensed water in the water receiving tray;
the condensed water drain program when executed by the processor implements the steps of the condensed water drain method according to any one of claims 1 to 7.
9. A storage medium characterized by storing a condensed water drain program which, when executed by a processor, implements the steps of the condensed water drain method according to any one of claims 1 to 7.
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| CN110173765A (en) * | 2019-05-17 | 2019-08-27 | 广东美的制冷设备有限公司 | Air processor and its control method and computer readable storage medium |
| CN110173853B (en) * | 2019-05-28 | 2021-09-14 | 广东美的制冷设备有限公司 | Water pump control method, water pump control circuit and air conditioner |
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| CN110500707B (en) * | 2019-08-27 | 2021-07-30 | 广东美的暖通设备有限公司 | Control method and device for water pan and air conditioning system |
| CN110594951B (en) * | 2019-11-13 | 2020-05-15 | 宁波奥克斯电气股份有限公司 | Control method and control device for air conditioner drainage pump and air conditioner |
| CN111271812A (en) * | 2020-02-18 | 2020-06-12 | 维谛技术有限公司 | Control method and device of air conditioner |
| CN111425943B (en) * | 2020-04-03 | 2021-10-22 | 广东美的暖通设备有限公司 | Air conditioner, control method of air conditioner, and storage medium |
| CN111720970B (en) * | 2020-06-17 | 2022-04-08 | 海信（山东）空调有限公司 | Control method of air conditioner |
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| CN113091206B (en) * | 2021-03-09 | 2022-09-06 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
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