CN107514737B - Dehumidifier and fault judgment method and device thereof - Google Patents
Dehumidifier and fault judgment method and device thereof Download PDFInfo
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- CN107514737B CN107514737B CN201710592548.3A CN201710592548A CN107514737B CN 107514737 B CN107514737 B CN 107514737B CN 201710592548 A CN201710592548 A CN 201710592548A CN 107514737 B CN107514737 B CN 107514737B
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Abstract
The invention discloses a dehumidifier and a fault judgment method and a fault judgment device thereof, wherein the method comprises the following steps: when the dehumidifier operates in a dehumidification mode, detecting the pressure value of a water tank in the dehumidifier in real time; acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time, and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank; acquiring the average power of the dehumidifier within a first preset time; calculating the energy efficiency of the dehumidifier within the first preset time according to the dehumidification amount and the average power of the dehumidifier within the first preset time; acquiring the dehumidification capacity change condition and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity and the energy efficiency of the dehumidifier every second preset time; and judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier. According to the method provided by the invention, the fault of the dehumidifier can be more timely and effectively judged.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a fault judgment method of a dehumidifier, a non-temporary computer readable storage medium, a fault judgment device of the dehumidifier and the dehumidifier.
Background
When the dehumidifier is in operation, the fault is generally difficult to be perceived by a user, and if the fault cannot be detected in time and is informed to the user, the use experience of the user is influenced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a method for determining a fault of a dehumidifier, which can determine the fault of the dehumidifier more timely and effectively, thereby improving user experience.
A second object of the invention is to propose a non-transitory computer-readable storage medium.
The third purpose of the invention is to provide a fault judging device of a dehumidifier.
The fourth purpose of the invention is to provide a dehumidifier.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for determining a fault of a dehumidifier, where the method includes: when the dehumidifier operates in a dehumidification mode, detecting the pressure value of a water tank in the dehumidifier in real time; acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time, and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank; acquiring the average power of the dehumidifier within the first preset time; calculating the energy efficiency of the dehumidifier within the first preset time according to the dehumidification capacity and the average power of the dehumidifier within the first preset time; acquiring the dehumidification capacity change condition of the dehumidifier and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity of the dehumidifier and the energy efficiency of the dehumidifier every second preset time; and judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier.
According to the fault judgment method of the dehumidifier, whether the dehumidifier breaks down or not is judged according to the change conditions of the dehumidification capacity and/or the energy efficiency of the dehumidifier by detecting the dehumidification capacity and the energy efficiency of the dehumidifier, so that the fault of the dehumidifier can be judged more timely and effectively, and the user experience is improved.
In addition, the method for judging the fault of the dehumidifier according to the above embodiment of the present invention may further have the following additional technical features:
further, the method for judging the fault of the dehumidifier further comprises the following steps: acquiring the operating parameters of the dehumidifier; and after the dehumidifier is judged to have a fault, judging the fault type of the dehumidifier according to the operation parameters of the dehumidifier.
According to one embodiment of the invention, the operating parameters of the dehumidifier include an evaporator tube temperature of the dehumidifier, an ambient temperature and a system pressure of the dehumidifier.
According to one embodiment of the invention, the pressure value of the water tank is detected by at least one pressure sensor arranged at the bottom of the water tank.
Specifically, acquiring the dehumidification amount of the dehumidifier within the first preset time according to the pressure change condition of the water tank includes: acquiring the variable quantity of the pressure value of the water tank within the first preset time; acquiring the weight variation of the water in the water tank according to the pressure value variation; and calculating the ratio of the weight variation of the water to the preset time to obtain the dehumidification capacity of the dehumidifier within the first preset time.
Specifically, the ratio of the dehumidification amount of the dehumidifier in the first preset time to the average power is calculated to obtain the energy efficiency of the dehumidifier in the first preset time.
Specifically, the determining whether the dehumidifier fails according to the dehumidification capacity variation condition of the dehumidifier and/or the energy efficiency variation condition of the dehumidifier includes: judging whether the reduction percentage of the dehumidification amount in the current first preset time relative to the dehumidification amount in the last first preset time and/or the reduction percentage of the energy efficiency in the current first preset time relative to the energy efficiency in the last first preset time is larger than a first preset percentage or not; and if the current value is greater than the first preset percentage, judging that the dehumidifier breaks down.
In order to achieve the above object, a non-transitory computer-readable storage medium is provided in a second embodiment of the present invention, and a computer program is stored thereon, where the computer program, when executed by a processor, implements the method for determining a fault of a dehumidifier according to the first embodiment of the present invention.
According to the non-transitory computer-readable storage medium of the embodiment of the invention, the fault of the dehumidifier can be judged more timely and effectively by executing the stored computer program, so that the user experience is improved.
In order to achieve the above object, a third aspect of the present invention provides a failure determination device for a dehumidifier, including: the pressure detection module is used for detecting the pressure value of a water tank in the dehumidifier in real time when the dehumidifier operates for dehumidification; the dehumidification capacity acquisition module is used for acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank; the power acquisition module is used for acquiring the average power of the dehumidifier within the first preset time; the energy efficiency calculation module is used for calculating the energy efficiency of the dehumidifier within the first preset time according to the dehumidification capacity and the average power of the dehumidifier within the first preset time; the change acquisition module is used for acquiring the dehumidification capacity change condition of the dehumidifier and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity of the dehumidifier and the energy efficiency of the dehumidifier every second preset time; and the fault judgment module is used for judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier.
According to the fault judgment device of the dehumidifier, the dehumidification amount and the energy efficiency of the dehumidifier are detected through the pressure detection module, the dehumidification amount acquisition module, the power acquisition module and the energy efficiency calculation module, and whether the dehumidifier breaks down or not is judged through the fault judgment module according to the dehumidification amount and/or the energy efficiency change condition of the dehumidifier, so that the fault of the dehumidifier can be judged more timely and effectively, and the user experience is improved.
In addition, the failure determination device for a dehumidifier according to the above embodiment of the present invention may further have the following additional technical features:
further, the fault determination device of the dehumidifier further includes: the parameter acquisition module is used for acquiring the operating parameters of the dehumidifier, and the fault judgment module is used for judging the fault type of the dehumidifier according to the operating parameters of the dehumidifier after judging that the dehumidifier has a fault.
According to one embodiment of the invention, the operating parameters of the dehumidifier include an evaporator tube temperature of the dehumidifier, an ambient temperature and a system pressure of the dehumidifier.
According to one embodiment of the invention, the pressure detection module comprises at least one pressure sensor arranged at the bottom of the water tank.
Specifically, the dehumidification capacity obtaining module is configured to obtain a pressure value variation of the water tank within the first preset time, obtain a weight variation of water in the water tank according to the pressure value variation, and calculate a ratio between the weight variation of water and the preset time, so as to obtain the dehumidification capacity of the dehumidifier within the first preset time.
Specifically, the energy efficiency calculation module calculates a ratio of the dehumidification amount of the dehumidifier to the average power within the first preset time to obtain the energy efficiency of the dehumidifier within the first preset time.
Specifically, the fault determining module determines whether a reduction percentage of the dehumidification amount in the current first preset time with respect to the dehumidification amount in the last first preset time and/or a reduction percentage of the energy efficiency in the current first preset time with respect to the energy efficiency in the last first preset time is greater than a first preset percentage, and determines that the dehumidifier is in fault when the determination is greater than the first preset percentage.
In order to achieve the above object, a dehumidifier according to a fourth aspect of the present invention includes the failure determination device of the dehumidifier according to the third aspect of the present invention.
According to the dehumidifier provided by the embodiment of the invention, the fault can be judged more timely and effectively.
Drawings
FIG. 1 is a flow chart of a method for determining a fault of a dehumidifier according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for determining a fault of a dehumidifier according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for determining a fault of a dehumidifier according to an embodiment of the present invention;
FIG. 4 is a block diagram of a fault determination device of a dehumidifier according to an embodiment of the present invention;
fig. 5 is a block diagram illustrating a fault determination apparatus of a dehumidifier according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The dehumidifier, the fault determination method thereof and the fault determination device thereof according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for determining a fault of a dehumidifier according to an embodiment of the present invention.
As shown in fig. 1, the method for determining a fault of a dehumidifier according to an embodiment of the present invention includes the following steps:
and S1, detecting the pressure value of the water tank in the dehumidifier in real time when the dehumidifier operates for dehumidification.
The water tank of the dehumidifier can be used for containing condensed water generated during the initial operation of the dehumidifier.
In one embodiment of the present invention, the pressure value of the water tank may be detected by at least one pressure sensor provided at the bottom of the water tank. One or more pressure sensors can be arranged at the position of a water tank chassis or the position of the side surface contacting with the chassis for detecting the whole pressure of the water tank; alternatively, one or more pressure sensors may be mounted at a bottom position within the tank for sensing the water pressure within the tank.
S2, acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time, and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank.
It should be understood that the overall pressure of the water tank and the water amount in the water tank have a proportional corresponding relationship, and the pressure of the water and the height of the water also have a proportional corresponding relationship, so that the pressure value of the water tank can reflect the water amount in the water tank, and can further reflect the dehumidification capacity of the dehumidifier.
In an embodiment of the invention, a variation of the pressure value of the water tank within the first preset time may be obtained, a variation of the weight of the water within the water tank may be obtained according to the variation of the pressure value, and a ratio of the variation of the weight of the water to the first preset time may be calculated to obtain the dehumidification capacity of the dehumidifier within the first preset time. Generally, as the dehumidifier operates to dehumidify, the amount of water in the water tank may be increased continuously, and thus the above and below-described variation amounts may be understood as increments.
The corresponding relation between the pressure value variation and the water weight variation can be obtained through experiment or theoretical analysis, the corresponding relation is stored, and the corresponding relation is called to be calculated after the pressure value variation is obtained, so that the water weight variation is obtained. Or, a corresponding relation table between the pressure value variation and the water weight variation can be obtained through experiment or theoretical analysis, the corresponding relation table is stored, and the table is looked up after the pressure value variation is obtained to obtain the water weight variation.
Then, the ratio of the amount of change in the weight of the water to the first preset time is calculated to obtain the dehumidification capacity of the dehumidifier in the first preset time, that is, the dehumidification capacity of the embodiment of the invention can be represented by the amount of change in the weight of the water in unit time, that is, the rate of change in the weight of the water.
In other embodiments of the present invention, the weight of the water before and after the first preset time may be obtained according to the pressure values before and after the first preset time, then the weight variation of the water in the first preset time is obtained, and then the ratio of the weight variation of the water to the first preset time is calculated, so as to obtain the dehumidification capacity of the dehumidifier in the first preset time.
In an embodiment of the present invention, the pressure value of the water tank may be detected in real time, and the difference between the pressure value at the current time point and the pressure value at the time point before the first preset time may be calculated in real time, so as to obtain the pressure value variation of the water tank within the first preset time. For example, the difference between the current time point and the pressure value before five minutes can be calculated in real time, the weight change amount of the water in the previous five minutes can be obtained according to the difference between the current time point and the pressure value before five minutes, the average change rate of the weight of the water in the previous five minutes can be further calculated, and the average change rate is used as the dehumidification amount of the dehumidifier in the previous five minutes.
In one embodiment of the invention, the dehumidifier can display the calculated dehumidification amount, so that a user can conveniently and timely know the dehumidification amount of the dehumidifier. Although the currently calculated dehumidification amount is the dehumidification amount within the first preset time, the pressure value of the water tank is detected in real time, and the difference between the pressure values can also be calculated in real time, so that the calculated dehumidification amount can be used as the real-time dehumidification amount of the dehumidifier. That is, the dehumidification amount known by the user through the content displayed by the dehumidifier may be regarded as the dehumidification amount at the current time point.
It should be understood that in the embodiment of the present invention, the accuracy and real-time of the dehumidification may be further improved by shortening the first preset time.
And S3, acquiring the average power of the dehumidifier in the first preset time.
Specifically, the average power of the dehumidifier in the first preset time can be obtained by differentiating the work done by the dehumidifier in the dehumidification operation within the first preset time.
And S4, calculating the energy efficiency of the dehumidifier in the first preset time according to the dehumidification amount and the average power of the dehumidifier in the first preset time.
Specifically, the ratio of the dehumidification amount to the average power of the dehumidifier in the first preset time can be calculated to obtain the energy efficiency of the dehumidifier. The calculated dehumidification amount can be used as the real-time dehumidification amount of the dehumidifier, and similarly, the energy efficiency calculated according to the dehumidification amount can also be used as the real-time energy efficiency of the dehumidifier. In an embodiment of the invention, the dehumidifier can display the calculated energy efficiency, so that a user can conveniently and timely know the energy efficiency of the dehumidifier.
And S5, acquiring the dehumidification capacity change condition and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity and the energy efficiency of the dehumidifier every second preset time.
The dehumidification capacity and the energy efficiency which are obtained in real time can be extracted every second preset time, the difference between the pressure value of the current time point and the pressure value of the time point before the first preset time can be directly calculated every second preset time, and therefore the dehumidification capacity and the energy efficiency of the dehumidifier in the first preset time can be obtained every second preset time.
By obtaining a plurality of continuous dehumidification capacity and energy efficiency values, the dehumidification capacity change situation and the energy efficiency change situation can be obtained.
And S6, judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier.
Specifically, it may be determined whether a reduction percentage of the dehumidification amount within the current first preset time with respect to the dehumidification amount within the previous first preset time and/or a reduction percentage of the energy efficiency within the current first preset time with respect to the energy efficiency within the previous first preset time is greater than a first preset percentage. And if the first preset percentage is larger than the first preset percentage, judging that the dehumidifier breaks down. For example, if the second preset time is equal to the first preset time, and the percentage of the current dehumidification amount and the energy efficiency to the last obtained dehumidification amount and energy efficiency decrease is greater than forty percent, it may be determined that the dehumidifier has a fault.
After the dehumidifier is judged to have a fault, the fault type can be further judged.
In one embodiment of the invention, if the dehumidifier is judged to have a fault and the current dehumidification capacity and the energy efficiency are close to zero values, the dehumidifier can be judged to have a full water fault.
In an embodiment of the invention, the fault type can be judged according to the operation parameters of the dehumidifier. Specifically, as shown in fig. 2, the method for determining a fault of a dehumidifier may further include:
and S7, obtaining the operation parameters of the dehumidifier.
The operating parameters of the dehumidifier can comprise the temperature of an evaporator tube of the dehumidifier, the ambient temperature and the system pressure of the dehumidifier.
And S8, after the dehumidifier is judged to have a fault, judging the fault type of the dehumidifier according to the operation parameters of the dehumidifier.
When the dehumidifier breaks down, the corresponding failure can cause the corresponding operation parameters to change abnormally. For example, when a refrigerant leakage failure occurs, the amount of heat absorbed by the evaporator is reduced, and the evaporator tube temperature is relatively reduced. Therefore, in one embodiment of the present invention, when the difference between the evaporator tube temperature and the ambient temperature is less than a predetermined temperature threshold, such as 7 ℃, it can be determined that the refrigerant leakage fault occurs. The relationship between other fault types and the variation of the operating parameters is not listed here.
As shown in fig. 3, in an embodiment of the present invention, the method for determining a fault of a dehumidifier may include the following steps:
s101, the dehumidifier operates in a dehumidification mode.
S102, pressure data p1 and p2 before and after time t are respectively detected by a pressure sensor at the bottom of the water tank.
S103, obtaining corresponding weight data m1 and m2 according to the corresponding relation between the pressure and the weight. That is, p1 and p2 indicating the pressure in step S102 are converted into m1 and m2 indicating the weight, respectively.
S104, obtaining the moisture removal rate (m2-m1)/t and the energy efficiency (m2-m1)/(t P) within the time t
S105, acquiring the moisture removal capacity and the energy efficiency reduction situation, and judging whether the moisture removal capacity and the energy efficiency are reduced by more than a preset percentage. For example, whether the elapsed time t has decreased by 40%. If yes, go to step S106; if not, step S105 is repeatedly executed.
And S106, analyzing the fault type by detecting the evaporator tube temperature, the ambient temperature and the system pressure.
In summary, according to the method for judging the fault of the dehumidifier provided by the embodiment of the invention, the dehumidification capacity and the energy efficiency of the dehumidifier are detected, and whether the dehumidifier has the fault is judged according to the change condition of the dehumidification capacity and/or the energy efficiency of the dehumidifier, so that the fault of the dehumidifier can be judged more timely and effectively, and the user experience is improved.
The invention also provides a non-transitory computer readable storage medium corresponding to the above embodiment.
The non-transitory computer readable storage medium of the embodiment of the present invention stores thereon a computer program, wherein when the program is executed by a processor, the method for determining a fault of a dehumidifier according to the above-mentioned embodiment of the present invention can be implemented.
According to the non-transitory computer-readable storage medium of the embodiment of the invention, the fault of the dehumidifier can be judged more timely and effectively by executing the stored computer program, so that the user experience is improved.
Corresponding to the embodiment, the invention further provides a fault judgment device of the dehumidifier.
As shown in fig. 4, the failure determination apparatus of a dehumidifier according to the embodiment of the present invention includes a pressure detection module 10, a dehumidification amount obtaining module 20, a power obtaining module 30, an energy efficiency calculating module 40, a change obtaining module 50, and a failure determination module 60.
The pressure detection module 10 is used for detecting the pressure value of a water tank in the dehumidifier in real time when the dehumidifier operates for dehumidification; the dehumidification capacity obtaining module 20 is configured to obtain a pressure change condition of the water tank within a first preset time according to a pressure value of the water tank detected in real time, and obtain a dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank; the power obtaining module 30 is configured to obtain an average power of the dehumidifier within the first preset time; the energy efficiency calculation module 40 is configured to calculate the energy efficiency of the dehumidifier within the first preset time according to the dehumidification amount and the average power of the dehumidifier within the first preset time; the change acquiring module 50 is configured to acquire a dehumidification amount change condition of the dehumidifier and an energy efficiency change condition of the dehumidifier by acquiring the dehumidification amount of the dehumidifier and the energy efficiency of the dehumidifier every second preset time; the fault judgment module 60 is configured to judge whether the dehumidifier fails according to a dehumidification amount change condition of the dehumidifier and/or an energy efficiency change condition of the dehumidifier.
The water tank of the dehumidifier can be used for containing condensed water generated during the initial operation of the dehumidifier.
In one embodiment of the present invention, the pressure detection module 10 may include at least one pressure sensor disposed at the bottom of the water tank to detect the pressure value of the water tank. One or more pressure sensors can be arranged at the position of a water tank chassis or the position of the side surface contacting with the chassis for detecting the whole pressure of the water tank; alternatively, one or more pressure sensors may be mounted at a bottom position within the tank for sensing the water pressure within the tank.
It should be understood that the overall pressure of the water tank and the water amount in the water tank have a proportional corresponding relationship, and the pressure of the water and the height of the water also have a proportional corresponding relationship, so that the pressure value of the water tank can reflect the water amount in the water tank, and can further reflect the dehumidification capacity of the dehumidifier.
In an embodiment of the present invention, the dehumidification amount obtaining module 20 may obtain a variation of the pressure value of the water tank within a first preset time, obtain a variation of the weight of the water in the water tank according to the variation of the pressure value, and calculate a ratio of the variation of the weight of the water to the first preset time, so as to obtain the dehumidification amount of the dehumidifier within the first preset time. Generally, as the dehumidifier operates to dehumidify, the amount of water in the water tank may be increased continuously, and thus the above and below-described variation amounts may be understood as increments.
The corresponding relation between the pressure value variation and the water weight variation can be obtained through experiment or theoretical analysis, the corresponding relation is stored, and the corresponding relation is called to be calculated after the pressure value variation is obtained, so that the water weight variation is obtained. Or, a corresponding relation table between the pressure value variation and the water weight variation can be obtained through experiment or theoretical analysis, the corresponding relation table is stored, and the table is looked up after the pressure value variation is obtained to obtain the water weight variation.
Then, the ratio of the amount of change in the weight of the water to the first preset time is calculated to obtain the dehumidification capacity of the dehumidifier in the first preset time, that is, the dehumidification capacity of the embodiment of the invention can be represented by the amount of change in the weight of the water in unit time, that is, the rate of change in the weight of the water.
In other embodiments of the present invention, the dehumidification amount obtaining module 20 may further obtain the weight of the water before and after the first preset time according to the pressure values before and after the first preset time, then obtain the weight variation of the water in the first preset time, and then calculate the ratio of the weight variation of the water to the first preset time, so as to obtain the dehumidification amount of the dehumidifier in the first preset time.
In an embodiment of the present invention, the pressure detection module 10 may detect the pressure value of the water tank in real time, and the dehumidification amount obtaining module 20 may calculate the difference between the pressure value at the current time point and the pressure value at the time point before the first preset time in real time, so as to obtain the variation of the pressure value of the water tank in the first preset time. For example, the dehumidification amount obtaining module 20 may calculate the difference between the current time point and the pressure value before five minutes in real time, and obtain the weight variation of the water in the previous five minutes according to the difference between the pressure values, so as to calculate the average variation rate of the weight of the water in the previous five minutes, and use the average variation rate as the dehumidification amount of the dehumidifier in the previous five minutes.
In an embodiment of the invention, the dehumidifier can display the calculated dehumidification amount through the display screen, so that a user can conveniently and timely know the dehumidification amount of the dehumidifier. Although the currently calculated dehumidification amount is the dehumidification amount within the first preset time, the pressure value of the water tank is detected in real time, and the difference between the pressure values can also be calculated in real time, so that the calculated dehumidification amount can be used as the real-time dehumidification amount of the dehumidifier. That is, the dehumidification amount known by the user through the content displayed on the display screen may be regarded as the dehumidification amount at the current point in time.
It should be understood that in the embodiment of the present invention, the accuracy and real-time of the dehumidification may be further improved by shortening the first preset time.
The power obtaining module 30 may specifically obtain an average power of the dehumidifier within the first preset time by differentiating the work performed by the dehumidifier during the dehumidification operation within the first preset time.
The energy efficiency calculation module 40 may specifically calculate a ratio of the dehumidification amount to the average power of the dehumidifier within the first preset time, so as to obtain the energy efficiency of the dehumidifier. The calculated dehumidification amount can be used as the real-time dehumidification amount of the dehumidifier, and similarly, the energy efficiency calculated according to the dehumidification amount can also be used as the real-time energy efficiency of the dehumidifier. In an embodiment of the invention, the dehumidifier can display the calculated energy efficiency through a display screen, so that a user can conveniently and timely know the energy efficiency of the dehumidifier.
The change acquiring module 50 may extract a value of the dehumidification amount and a value of the energy efficiency for the dehumidification amount and the energy efficiency acquired in real time every second preset time, or may directly calculate a difference between a pressure value at a current time point and a pressure value at a time point before the first preset time every second preset time through the dehumidification amount acquiring module 20, so that the dehumidification amount and the energy efficiency of the dehumidifier within the first preset time can be acquired every second preset time.
The change acquiring module 50 may acquire the dehumidification amount change condition and the energy efficiency change condition by acquiring a plurality of consecutive values of the dehumidification amount and the energy efficiency.
The fault determining module 60 may specifically determine whether a reduction percentage of the dehumidification amount in the current first preset time with respect to the dehumidification amount in the previous first preset time and/or a reduction percentage of the energy efficiency in the current first preset time with respect to the energy efficiency in the previous first preset time is greater than a first preset percentage. If the percentage is larger than the first preset percentage, the fault judgment module 60 judges that the dehumidifier is in fault. For example, if the second preset time is equal to the first preset time, and the percentage of the current dehumidification amount and the energy efficiency that are decreased with respect to the last obtained dehumidification amount and energy efficiency is greater than forty percent, the fault determining module 60 may determine that the dehumidifier is faulty.
After the dehumidifier is judged to have a fault, the fault type can be further judged.
In an embodiment of the present invention, if the fault determining module 60 determines that the dehumidifier has a fault and the current dehumidification capacity and energy efficiency are both close to zero, the fault determining module 60 may determine that the dehumidifier has a water full fault.
In an embodiment of the invention, the fault type can be judged according to the operation parameters of the dehumidifier. Specifically, as shown in fig. 5, the failure determination device of the dehumidifier may further include a parameter obtaining module 70. The parameter obtaining module 70 is configured to obtain an operation parameter of the dehumidifier, and the fault determining module 60 determines a fault type of the dehumidifier according to the operation parameter of the dehumidifier after determining that the dehumidifier is faulty.
The operating parameters of the dehumidifier can comprise the temperature of an evaporator tube of the dehumidifier, the ambient temperature and the system pressure of the dehumidifier.
When the dehumidifier breaks down, the corresponding failure can cause the corresponding operation parameters to change abnormally. For example, when a refrigerant leakage failure occurs, the amount of heat absorbed by the evaporator is reduced, and the evaporator tube temperature is relatively reduced. Therefore, in an embodiment of the present invention, the fault determination module 60 may determine that the refrigerant leakage fault occurs when a difference between the evaporator tube temperature and the ambient temperature is less than a predetermined temperature threshold, for example, 7 ℃. The relationship between other fault types and the variation of the operating parameters is not listed here.
According to the fault judgment device of the dehumidifier, the dehumidification amount and the energy efficiency of the dehumidifier are detected through the pressure detection module, the dehumidification amount acquisition module, the power acquisition module and the energy efficiency calculation module, and whether the dehumidifier breaks down or not is judged through the fault judgment module according to the dehumidification amount and/or the energy efficiency change condition of the dehumidifier, so that the fault of the dehumidifier can be judged more timely and effectively, and the user experience is improved.
Corresponding to the embodiment, the invention further provides a dehumidifier.
The dehumidifier of the embodiment of the invention comprises the fault judgment device of the dehumidifier provided by the embodiment of the invention. Reference is made to the above-described embodiments for specific embodiments thereof.
According to the dehumidifier provided by the embodiment of the invention, the fault can be judged more timely and effectively.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (16)
1. A fault judgment method of a dehumidifier is characterized by comprising the following steps:
when the dehumidifier operates in a dehumidification mode, detecting the pressure value of a water tank in the dehumidifier in real time;
acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time, and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank;
acquiring the average power of the dehumidifier within the first preset time;
calculating the energy efficiency of the dehumidifier within the first preset time according to the dehumidification capacity and the average power of the dehumidifier within the first preset time;
acquiring the dehumidification capacity change condition of the dehumidifier and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity of the dehumidifier and the energy efficiency of the dehumidifier every second preset time;
and judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier.
2. The method of claim 1, further comprising:
acquiring the operating parameters of the dehumidifier;
and after the dehumidifier is judged to have a fault, judging the fault type of the dehumidifier according to the operation parameters of the dehumidifier.
3. The method of claim 2, wherein the operating parameters of the dehumidifier include an evaporator tube temperature of the dehumidifier, an ambient temperature, and a system pressure of the dehumidifier.
4. The malfunction determination method of a dehumidifier according to claim 1, wherein the pressure value of the water tank is detected by at least one pressure sensor provided at the bottom of the water tank.
5. The method for judging the fault of the dehumidifier according to claim 4, wherein the step of obtaining the dehumidification amount of the dehumidifier within the first preset time according to the pressure change condition of the water tank comprises the following steps:
acquiring the variable quantity of the pressure value of the water tank within the first preset time;
acquiring the weight variation of the water in the water tank according to the pressure value variation;
and calculating the ratio of the weight variation of the water to a preset time to obtain the dehumidification capacity of the dehumidifier within the first preset time.
6. The method as claimed in claim 5, wherein the ratio of the dehumidification amount to the average power of the dehumidifier in the first preset time is calculated to obtain the energy efficiency of the dehumidifier in the first preset time.
7. The method for judging the fault of the dehumidifier according to any one of claims 1 to 6, wherein judging whether the dehumidifier has the fault according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier comprises the following steps:
judging whether the reduction percentage of the dehumidification amount in the current first preset time relative to the dehumidification amount in the last first preset time and/or the reduction percentage of the energy efficiency in the current first preset time relative to the energy efficiency in the last first preset time is larger than a first preset percentage or not;
and if the current value is greater than the first preset percentage, judging that the dehumidifier breaks down.
8. A non-transitory computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the method of determining a fault in a dehumidifier according to any of claims 1-7.
9. A failure determination device of a dehumidifier is characterized by comprising:
the pressure detection module is used for detecting the pressure value of a water tank in the dehumidifier in real time when the dehumidifier operates for dehumidification;
the dehumidification capacity acquisition module is used for acquiring the pressure change condition of the water tank within first preset time according to the pressure value of the water tank detected in real time and acquiring the dehumidification capacity of the dehumidifier within the first preset time according to the pressure change condition of the water tank;
the power acquisition module is used for acquiring the average power of the dehumidifier within the first preset time;
the energy efficiency calculation module is used for calculating the energy efficiency of the dehumidifier within the first preset time according to the dehumidification capacity and the average power of the dehumidifier within the first preset time;
the change acquisition module is used for acquiring the dehumidification capacity change condition of the dehumidifier and the energy efficiency change condition of the dehumidifier by acquiring the dehumidification capacity of the dehumidifier and the energy efficiency of the dehumidifier every second preset time;
and the fault judgment module is used for judging whether the dehumidifier breaks down or not according to the dehumidification quantity change condition of the dehumidifier and/or the energy efficiency change condition of the dehumidifier.
10. The malfunction determination device of a dehumidifier according to claim 9, further comprising:
a parameter obtaining module for obtaining the operation parameters of the dehumidifier,
and the fault judging module is used for judging the fault type of the dehumidifier according to the operating parameters of the dehumidifier after judging that the dehumidifier has a fault.
11. The malfunction determination device of a dehumidifier according to claim 10, wherein the operation parameters of the dehumidifier include an evaporator tube temperature of the dehumidifier, an ambient temperature, and a system pressure of the dehumidifier.
12. The malfunction judgment device of the dehumidifier according to claim 9, wherein the pressure detection module includes at least one pressure sensor disposed at a bottom of the water tank.
13. The device of claim 12, wherein the dehumidification amount obtaining module is configured to obtain a variation of the pressure value of the water tank within the first preset time, obtain a variation of the weight of water in the water tank according to the variation of the pressure value, and calculate a ratio of the variation of the weight of water to a preset time, so as to obtain the dehumidification amount of the dehumidifier within the first preset time.
14. The apparatus of claim 13, wherein the energy efficiency calculating module calculates a ratio of the dehumidification amount to the average power of the dehumidifier within the first preset time to obtain the energy efficiency of the dehumidifier within the first preset time.
15. The device of any one of claims 9 to 14, wherein the fault determining module determines whether a percentage of a decrease in the dehumidification amount in a current first preset time with respect to the dehumidification amount in a previous first preset time and/or a percentage of a decrease in the energy efficiency in the current first preset time with respect to the energy efficiency in the previous first preset time is greater than a first preset percentage, and determines that the dehumidifier is faulty when the percentage is greater than the first preset percentage.
16. A dehumidifier comprising the failure judging device of the dehumidifier according to any one of claims 9 to 15.
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| CN111998448A (en) * | 2020-09-01 | 2020-11-27 | 马鞍山艾可顿制冷设备有限公司 | Dehumidifier fault diagnosis method and system |
| CN112303809A (en) * | 2020-10-30 | 2021-02-02 | 广东美的制冷设备有限公司 | Dehumidification control method, dehumidification apparatus, and computer-readable storage medium |
| CN112377999A (en) * | 2020-11-13 | 2021-02-19 | 佛山市顺德区美的电子科技有限公司 | Dehumidification control method, dehumidification apparatus, and computer-readable storage medium |
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