CN113432212A - Method of controlling dehumidifier, and computer-readable storage medium - Google Patents

Method of controlling dehumidifier, and computer-readable storage medium Download PDF

Info

Publication number
CN113432212A
CN113432212A CN202110740100.8A CN202110740100A CN113432212A CN 113432212 A CN113432212 A CN 113432212A CN 202110740100 A CN202110740100 A CN 202110740100A CN 113432212 A CN113432212 A CN 113432212A
Authority
CN
China
Prior art keywords
temperature difference
dehumidifier
temperature
refrigerant
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110740100.8A
Other languages
Chinese (zh)
Other versions
CN113432212B (en
Inventor
马佩佩
谈裕辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Guangdong Air Conditioning Co Ltd
Original Assignee
Hisense Guangdong Air Conditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Guangdong Air Conditioning Co Ltd
Priority to CN202110740100.8A priority Critical patent/CN113432212B/en
Publication of CN113432212A publication Critical patent/CN113432212A/en
Application granted granted Critical
Publication of CN113432212B publication Critical patent/CN113432212B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention discloses a method for controlling a dehumidifier, a computer readable storage medium and the dehumidifier, wherein the method for controlling the dehumidifier comprises the following steps: acquiring the temperature of an evaporator tube of the dehumidifier, the temperature of an indoor environment dry bulb and a temperature difference judgment reference parameter; obtaining a target temperature difference judgment value according to a set partition to which the temperature difference judgment reference parameter belongs; calculating the temperature difference value between the indoor environment dry bulb temperature and the evaporator tube temperature; and determining that the temperature difference value is smaller than the target temperature difference judgment value, and controlling the dehumidifier to enter a refrigerant conventional protection mode. The method for controlling the dehumidifier realizes more accurate refrigerant leakage control based on the mode of carrying out partition treatment on the temperature difference judgment reference parameter, so that the dehumidifier is suitable for different indoor thermal environments.

Description

Method of controlling dehumidifier, and computer-readable storage medium
Technical Field
The invention relates to the technical field of dehumidifiers, in particular to a method for controlling a dehumidifier, a computer readable storage medium and the dehumidifier.
Background
In the actual operation process of the dehumidifier, when the refrigerant of the dehumidifier leaks, the amount of the refrigerant entering the evaporator through the capillary throttling is reduced, the refrigerant exchanges heat with the environment and evaporates too fast, so that the temperature of the temperature-sensing pipe of the evaporator is higher than that of the temperature-sensing pipe of the evaporator during the normal operation of the dehumidifier, and based on the characteristic, the difference between the ambient temperature and the temperature of the evaporator pipe is used as the judgment basis for judging whether the refrigerant leaks and protects. The specific protection program is as follows: when the compressor continuously operates for a period of time and the difference between the ambient temperature and the temperature of the evaporator tubes is less than or equal to a temperature set value when the ambient temperature and the temperature of the evaporator tubes continuously operate for a period of time, for example, the temperature range is-20 ℃ to 80 ℃, the dehumidifier enters a refrigerant leakage protection program, at the moment, the compressor stops operating, and the fan motor continuously operates until the exit condition of the refrigerant leakage program is met.
In some schemes, in the method, when the ambient temperature is met and the temperature of an evaporator tube is less than or equal to a first temperature difference value, the dehumidifier enters a refrigerant leakage conventional protection mode until a first exit condition is met, the dehumidifier exits the refrigerant leakage conventional protection mode, and in a continuous second time period, when the dehumidifier continuously enters the refrigerant leakage conventional protection mode for n times, the dehumidifier enters a refrigerant leakage final protection mode, so that the influence caused by further leakage of the refrigerant is avoided.
However, due to the influence of the dry bulb temperature of the indoor environment and the indoor relative humidity on the temperature of the evaporator tube, when the refrigerant leakage rate is not changed, the refrigerant leakage control of the dehumidifier in the above scheme cannot be realized more accurately under different indoor thermal environments.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one of the objectives of the present invention is to provide a method for controlling a dehumidifier, which is based on a way of performing partition processing on a temperature difference determination reference parameter, so as to achieve more accurate refrigerant leakage control, and enable the dehumidifier to adapt to different indoor thermal environments.
It is another object of the present invention to provide a computer-readable storage medium.
The invention also provides a dehumidifier.
In order to achieve the above object, an embodiment of the first aspect of the present invention provides a method for controlling a dehumidifier, including: acquiring the temperature of an evaporator tube of the dehumidifier, the temperature of an indoor environment dry bulb and a temperature difference judgment reference parameter; obtaining a target temperature difference judgment value according to a set partition to which the temperature difference judgment reference parameter belongs; calculating the temperature difference value between the indoor environment dry bulb temperature and the evaporator tube temperature; and determining that the temperature difference value is smaller than the target temperature difference judgment value, and controlling the dehumidifier to enter a refrigerant conventional protection mode.
According to the method for controlling the dehumidifier, the target temperature difference judgment value is obtained according to the set subarea to which the temperature difference judgment reference parameter belongs, the influence of the temperature difference judgment reference parameter on refrigerant leakage protection is fully considered by carrying out subarea processing on the temperature difference judgment reference parameter, and the target temperature difference judgment values corresponding to different subareas can be obtained according to different temperature difference judgment reference parameters so as to correct the target temperature difference judgment value, so that the dehumidifier is suitable for different indoor thermal environments, and the dehumidifier is controlled to adjustably enter a refrigerant conventional protection mode, thereby realizing more accurate refrigerant leakage control and increasing the experience of users.
In some embodiments of the present invention, the obtaining a temperature difference determination value according to a setting partition to which the temperature difference determination reference parameter belongs includes: the temperature difference judgment reference parameter comprises the indoor environment dry bulb temperature; setting q subareas of the indoor environment dry bulb temperature, wherein each subarea is provided with a corresponding first temperature difference judgment value, the indoor environment dry bulb temperature of the ith subarea is less than the indoor environment dry bulb temperature of the (i +1) th subarea, the first temperature difference judgment value corresponding to the ith subarea is greater than the first temperature difference judgment value corresponding to the (i +1) th subarea, and the value is more than or equal to 1 and less than or equal to (i + 1); determining that the indoor environment dry bulb temperature belongs to the ith zone; and acquiring a first temperature difference judgment value corresponding to the ith partition as the target temperature difference judgment value.
In some embodiments of the present invention, the obtaining a temperature difference determination value according to a setting partition to which the temperature difference determination reference parameter belongs includes: the temperature difference determination reference parameter comprises indoor relative humidity; setting p partitions of the indoor relative humidity, wherein each partition is provided with a corresponding second temperature difference judgment value, the indoor relative humidity of the jth partition is smaller than the indoor relative humidity of the (j +1) th partition, the second temperature difference judgment value corresponding to the jth partition is larger than the second temperature difference judgment value corresponding to the (j +1) th partition, and the value is more than or equal to (j +1) and less than or equal to p; determining that the indoor relative humidity belongs to a jth zone; and acquiring a second temperature difference judgment value corresponding to the jth partition to be used as the target temperature difference judgment value.
In some embodiments of the present invention, the obtaining a temperature difference determination value according to a setting partition to which the temperature difference determination reference parameter belongs includes: the temperature difference determination reference parameters comprise the indoor environment dry bulb temperature and the indoor relative humidity; setting g first sub-divisions of the indoor ambient dry bulb temperature, the indoor ambient dry bulb temperature of the Kth first sub-division being less than the indoor ambient dry bulb temperature of the (K +1) th first sub-division, and setting h sub-divisions of the indoor relative humidity, the indoor relative humidity of the Lth second sub-division being less than the indoor relative humidity of the (L +1) th second sub-division, constructing the g first sub-divisions and the h second sub-divisions into (g × h) divisions, each division setting a corresponding third temperature difference determination value, wherein 1 ≦ g (K +1), 1 ≦ L +1 ≦ h; determining that the indoor environment dry bulb temperature belongs to a Kth first sub-partition and the indoor relative humidity belongs to a Lth second sub-partition; and acquiring a third temperature difference judgment value corresponding to the (KxL) th partition as the target temperature difference judgment value.
In some embodiments of the invention, the method further comprises: acquiring the type of a refrigerant of the dehumidifier; obtaining a correction coefficient according to the type of the refrigerant; and correcting the first temperature difference judgment value, the second temperature difference judgment value or the third temperature difference judgment value according to the correction coefficient to obtain the target temperature difference judgment value.
According to the method for controlling the dehumidifier, the temperature difference judgment value is corrected based on the physical property difference of different types of refrigerants, the related program algorithm is simple, the corrected temperature difference judgment value is obtained as the target temperature difference judgment value, and the method can adapt to the influences of different refrigerant types, indoor thermal environments and other existing dehumidifier protection programs on refrigerant leakage protection, so that the control accuracy degree of the refrigerant leakage protection is improved.
In some embodiments of the present invention, before controlling the dehumidifier to enter the refrigerant normal protection mode, the method further includes: recording the duration that the temperature difference value is smaller than the target temperature difference judging value; and if the duration reaches a first duration and the compressor of the dehumidifier continuously operates within the first duration, controlling the dehumidifier to enter a refrigerant conventional protection mode.
According to the method for controlling the dehumidifier, when the fact that the duration of the temperature difference value smaller than the target temperature difference determination value reaches the first duration and the compressor continuously operates within the first duration is determined, the dehumidifier is controlled to enter a refrigerant conventional protection mode to decouple the refrigerant leakage protection and the compressor start protection, and the winding condition is likely to occur, so that the control accuracy degree of the refrigerant leakage protection is improved.
In some embodiments of the invention, the method further comprises: detecting that the dehumidifier meets an exit condition for exiting the refrigerant conventional protection mode, and controlling the dehumidifier to exit the refrigerant conventional protection mode; recording the continuous times of the dehumidifier entering the refrigerant conventional protection mode; and when the continuous times reach the preset times and the temperature difference value is determined to be smaller than the target temperature difference judgment value again, controlling the compressor of the dehumidifier to stop running and carrying out refrigerant leakage alarm prompting.
In some embodiments of the invention, the exit condition satisfies at least one of: the temperature difference value is greater than or equal to the target temperature difference judgment value; controlling a compressor of the dehumidifier to pause in the conventional refrigerant protection mode, wherein the pause time of the compressor reaches a second time length, and the second time length is determined by the initial refrigerant charge amount and the refrigerant type of the dehumidifier; and receiving a dehumidifier shutdown instruction.
In order to achieve the above object, a computer-readable storage medium is provided in an embodiment of a second aspect of the present invention, on which a computer program is stored, and the computer program is used for implementing the method for controlling a dehumidifier described in any one of the above embodiments when the computer program is executed by a processor.
According to the computer-readable storage medium of the embodiment of the invention, the computer program is stored on the computer-readable storage medium, when the computer program runs, the running parameters of each structure in the dehumidifier can be obtained for analysis and calculation, the target temperature difference judgment value is corrected by introducing the correction coefficient and adopting the modes of partition processing and the like, the method can adapt to different refrigerant types and indoor thermal environments, thereby realizing more accurate refrigerant leakage control protection, and the related algorithm programs are simpler, more convenient and more efficient.
In order to achieve the above object, a dehumidifier according to a third aspect of the present invention includes: a housing including an evaporator having a coil; the temperature sensor is used for detecting the temperature of the evaporator tube; a processor and a memory communicatively coupled to the processor; wherein, the memory stores a computer program executable by the processor, and the processor implements the method for controlling a dehumidifier described in any one of the above embodiments when executing the computer program.
According to the dehumidifier provided by the embodiment of the invention, after the dehumidifier is started to operate, the temperature sensor detects the temperature of the evaporation tube to obtain the temperature of the evaporation tube, the computer program in the memory operates to calculate the temperature difference value between the indoor environment dry bulb temperature and the temperature of the evaporation tube, a target temperature difference judgment value is obtained according to the set subarea to which the temperature difference judgment reference parameter belongs, the target temperature difference judgment value is corrected according to the correction coefficient, and the processor can control the operation state of each module in the dehumidifier according to the instruction sent by the computer program during the operation, so that the method for controlling the dehumidifier provided by any one of the above embodiments is implemented. The dehumidifier can adapt to different refrigerant types and indoor thermal environments, can accurately reflect the refrigerant leakage condition and carry out control protection, and related algorithm programs are simple, convenient and efficient.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a method of controlling a dehumidifier in accordance with one embodiment of the present invention;
FIG. 2 is a flow chart of a method of controlling a dehumidifier according to another embodiment of the present invention;
FIG. 3 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 4 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 5 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 6 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 7 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 8 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 9 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 10 is a flow chart of a method of controlling a dehumidifier in accordance with yet another embodiment of the present invention;
FIG. 11 is a block diagram of a dehumidifier according to one embodiment of the present invention.
Reference numerals:
a dehumidifier 10;
the device comprises a machine body 1, a temperature sensor 2, a processor 3 and a memory 4;
an evaporator 11.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
In order to solve the problem that when the refrigerant leakage rate is not changed, the dehumidifier cannot accurately realize refrigerant leakage control under different indoor thermal environments, the embodiment of the invention provides a method for controlling the dehumidifier and the dehumidifier adopting the method.
A method of controlling a dehumidifier according to an embodiment of the present invention will be described with reference to fig. 1 to 10. It should be noted that the step numbers in the present application, such as S1, S2, S3, S4, and the like, are only for convenience of describing the present solution, and are not to be construed as limiting the order of the steps. That is, the execution order of, for example, steps S1, S2, S3, S4, etc. may be specifically determined according to actual needs, and is not limited to the control in the order of steps in the following embodiments.
In some embodiments of the present invention, as shown in fig. 1, a flowchart of a method for controlling a dehumidifier according to an embodiment of the present invention is provided, wherein the method for controlling a dehumidifier at least includes steps S1-S4, which are described as follows.
And S1, acquiring the evaporator tube temperature, the indoor environment dry bulb temperature and the temperature difference judgment reference parameters of the dehumidifier.
The evaporator in the dehumidifier is provided with a coil, and the temperature of the evaporator tube can be detected by arranging a temperature sensor. The indoor environment dry bulb temperature is a value read from a dry bulb temperature meter exposed to air without direct irradiation of the sun, and is not interfered by radiation and moisture. For example, let the evaporator tube temperature be TtAnd the dry bulb temperature of the indoor environment is recorded as Td. The temperature T of the evaporator tube of the dehumidifier can be detected after the dehumidifier is started to run for a period of time, such as 20-35 minutes when the dehumidifier is started to runtIndoor environment dry bulb temperature TdAnd judging reference parameters by temperature difference to ensure that the dehumidifier enters a stable operation stage.
In the embodiment, the dry bulb temperature T of the indoor environment is realized during the operation of the dehumidifierdAnd the indoor relative humidity can influence the temperature T of the evaporator tube in the dehumidifiertWherein, will be indoorsThe relative humidity was recorded as φ. For example, when the refrigerant leakage rate is constant, the dry bulb temperature T of the indoor environmentdWhen the indoor relative humidity phi is high, the internal overheating condition of the evaporator of the dehumidifier is intensified, so that the temperature T of the evaporator tube is increasedtWhen the refrigerant leakage rate is lower than 50%, the dehumidifier may enter the refrigerant leakage protection program in advance. As another example, when the indoor environment is dry bulb temperature TdAnd lower indoor relative humidity phi, the evaporator tube temperature T is causedtWhen the refrigerant leakage rate is higher than 50%, the dehumidifier delays entering the refrigerant leakage protection program.
Based on the two conditions, the dry bulb temperature T of the indoor environment is considereddMay be in the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtMay have a single influence on the temperature difference, or the indoor relative humidity phi may have a single influence on the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe temperature difference value of (a) has a single influence, and the indoor environment dry bulb temperature TdAnd the indoor relative humidity phi may be related to the indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtThe temperature difference value of (A) is coupled and influenced, and the indoor environment needs to be dried to have a dry bulb temperature TdAnd the indoor relative humidity phi is used as a reference to judge whether the refrigerant leakage occurs. For example, the indoor ambient dry bulb temperature T may be obtaineddAnd at least one of the indoor relative humidity phi as a temperature difference determination reference parameter.
And S2, obtaining a target temperature difference judgment value according to the set subarea to which the temperature difference judgment reference parameter belongs.
In one embodiment, the reference parameter includes an indoor environment dry bulb temperature TdThen according to the dry bulb temperature T of the indoor environmentdAnd obtaining a target temperature difference judgment value by the affiliated setting subarea. If the temperature difference judgment reference parameter comprises the indoor relative humidity phi, the target temperature difference judgment value can be obtained according to the set subarea to which the indoor relative humidity phi belongs. If the temperature difference judgment reference parameter comprises the indoor environment dry bulb temperature TdAnd the indoor relative humidity phi can be determined according to the dry bulb temperature T of the indoor environmentdAnd indoor relative humidity phiAnd obtaining a target temperature difference judgment value by the belonging set subarea.
S3, calculating the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe temperature difference value of (a). Will detect the indoor environment dry bulb temperature TdAnd evaporator tube temperature TtAnd performing difference calculation to obtain a temperature difference value of the dehumidifier and the target temperature difference judgment value, and comparing the temperature difference value with the target temperature difference judgment value to judge whether the dehumidifier has refrigerant leakage.
And S4, determining that the temperature difference value is smaller than the target temperature difference judgment value, and controlling the dehumidifier to enter a refrigerant conventional protection mode.
When the temperature of the dry bulb in the indoor environment is TdAnd evaporator tube temperature TtWhen the temperature difference value is smaller than the target temperature difference judgment value, the refrigerant leakage condition of the dehumidifier is determined, and a refrigerant leakage protection mechanism needs to be started, and the dehumidifier is controlled to enter a refrigerant conventional protection mode. The compressor in the dehumidifier is suspended in the refrigerant conventional protection mode, for example, the shutdown time of the compressor in the mode can last for 30-60 minutes, but the fan keeps the running state and is used for blowing off the leaked refrigerant in time, so that the leaked refrigerant is prevented from accumulating at the same position.
According to the method for controlling the dehumidifier, the target temperature difference judgment value is obtained according to the set subarea to which the temperature difference judgment reference parameter belongs, the influence of the temperature difference judgment reference parameter on refrigerant leakage protection is fully considered by carrying out subarea processing on the temperature difference judgment reference parameter, and the target temperature difference judgment values corresponding to different subareas can be obtained according to different temperature difference judgment reference parameters so as to correct the target temperature difference judgment value, so that the dehumidifier is suitable for different indoor thermal environments, and the dehumidifier is controlled to adjustably enter a refrigerant conventional protection mode, thereby realizing more accurate refrigerant leakage control and increasing the experience of users.
In the refrigerant normal protection mode, in some embodiments of the present invention, as shown in fig. 2, a method for controlling a dehumidifier according to another embodiment of the present invention is disclosed, wherein the temperature difference determination value is obtained according to a set partition to which the temperature difference determination reference parameter belongs, that is, the step S2 may include steps S21-S24, which is as follows.
And S21, the temperature difference judgment reference parameter comprises the indoor environment dry bulb temperature.
Wherein the dry bulb temperature T of the indoor environment is taken into considerationdTo the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe single influence of the temperature difference value can change the dry bulb temperature T of the indoor environmentdAnd the reference parameter is solely used as the temperature difference judgment reference parameter.
S22, q partitions of the indoor environment dry bulb temperature are set, wherein each partition is provided with a corresponding first temperature difference judgment value, the indoor environment dry bulb temperature of the ith partition is larger than the indoor environment dry bulb temperature of the (i +1) th partition, the first temperature difference judgment value corresponding to the ith partition is smaller than the first temperature difference judgment value corresponding to the (i +1) th partition, and q is larger than or equal to 1 and larger than or equal to (i + 1).
Wherein the first temperature difference determination value may be denoted as Aset,dFirst temperature difference determination value Aset,dIs the dry bulb temperature T from the indoor environmentdTo the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe temperature difference value of (2) is a temperature difference determination value under the condition of single influence.
Specifically, the dry bulb temperature T of the indoor environmentdPerforming partition processing, as shown in formula (1-1), and determining indoor environment dry bulb temperature TdThe range of the interval is located, and a first temperature difference judgment value A is determined based on the rangeset,dThe value of (a). For example, the indoor environment may be dried to a temperature TdQ is divided into q subareas, the value range of q is more than or equal to 2 and less than or equal to 5, in the 1 st subarea to the q th subarea, the i-th subarea and the (i +1) -th subarea meet the condition that i is more than or equal to 1 and less than (i +1) and q is less than or equal to 1, and the indoor environment dry bulb temperature T of the i-th subareadLess than the dry bulb temperature T of the indoor environment of the (i +1) th sub-zonedAnd judging a first temperature difference corresponding to the ith partitionset,dThe value is larger than the first temperature difference judgment value A corresponding to the (i +1) th partitionset,d. For example, the temperature difference determination value A of the 1 st divisionset,dX + a, i-th zone temperature difference determination value Aset,dX, temperature difference determination value A of q-th sub-areaset,dX-b, and x + a > x-b. That is, in the 1 st to q-th divisions, the indoor ambient dry bulb temperature TdFirst temperature difference judgment set in different partitions arranged from low to highValue Aset,dAre all unequal and are along with the dry bulb temperature T of the indoor environmentdIs increased, the corresponding first temperature difference determination value Aset,dAnd is reduced accordingly. Preferably, the indoor ambient dry bulb temperature T in each zone may be determineddThe difference of (a) is set to 5 ℃ or more. The value of x can be a refrigerant leakage protection temperature difference determination value of the conventional R410A refrigerant dehumidifier, x, a, b and q are positive numbers, and the value of x is required to be more than or equal to 2 ℃, so that the dehumidifier can be ensured to be capable of detecting refrigerant leakage in a refrigerant leakage rate range of 50% -70% -and enter a refrigerant conventional protection mode.
Figure BDA0003141109070000081
And S23, determining that the indoor environment dry bulb temperature belongs to the ith subarea.
Wherein the detected indoor environment dry bulb temperature T is determined firstlydIs located in the set indoor environment and has a dry bulb temperature TdQ partitions and determining the indoor environment dry bulb temperature TdBelonging to the ith partition.
And S24, acquiring a first temperature difference judgment value corresponding to the ith partition as a target temperature difference judgment value.
In an embodiment, when the indoor environment dry bulb temperature T is detecteddThen, according to the partition method shown in the formula (1-1), determining the dry bulb temperature T of the indoor environmentdThe first temperature difference judgment value A corresponding to the subarea is used for the subareaset,dAs a target temperature difference determination value.
For example, when the dehumidifier is in operation, the dry-bulb temperature T of the indoor environmentdWhen the temperature is changed from 10 to 40 ℃, the temperature T of the dry bulb in the indoor environment is controlleddPartitioning is carried out, and the indoor environment dry bulb temperature T in the 1 st partition is assumed to be 3 partitions in totaldThe value range of the first temperature difference is 10-20 ℃, and the first temperature difference judgment value A corresponding to the 1 st partition can be usedset,dThe temperature was set to 5 ℃. Indoor ambient dry bulb temperature T in zone 2dThe value range of the first temperature difference is 20-30 ℃, and the first temperature difference judgment value A corresponding to the 2 nd partition can be usedset,dThe temperature was set to 4 ℃. First, theIndoor ambient dry bulb temperature T in zone 3dThe value range of the temperature difference is 30-40 ℃, and a first temperature difference judgment value A corresponding to the 3 rd partition can be obtainedset,dThe temperature was set to 3 ℃. For example, if the detected indoor environment dry bulb temperature TdDetermining the detected indoor environment dry bulb temperature T according to the partition mode at 25 DEG CdIn the 2 nd partition, obtaining a first temperature difference judgment value A corresponding to the 2 nd partitionset,d4 ℃ was set as the target temperature difference determination value.
In some embodiments of the invention, the dry bulb temperature T is taken into account in the indoor environmentdTo the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtBy taking the single influence on the dry bulb temperature T of the indoor environmentdThe target temperature difference judgment value is corrected in a partition processing mode, and the dry bulb temperature T can be adjusted in different indoor environmentsdAnd then, the dehumidifier is adjustably controlled to enter a refrigerant conventional protection mode, so that more accurate refrigerant leakage control is realized.
In some embodiments of the present invention, as shown in fig. 3, which is a method of controlling a dehumidifier according to still another embodiment of the present invention, wherein the temperature difference determination value is obtained according to the set section to which the temperature difference determination reference parameter belongs, the above step S2 may further include steps S25-S28, as follows.
S25, the temperature difference determination reference parameter includes indoor relative humidity.
Wherein the dry bulb temperature T of the indoor environment is considered in consideration of the indoor relative humidity phidAnd evaporator tube temperature TtThe single influence of the temperature difference value can be used for independently taking the indoor relative humidity phi as a temperature difference judgment reference parameter.
S26, setting p partitions of indoor relative humidity, wherein each partition is provided with a corresponding second temperature difference judgment value, the indoor relative humidity of the jth partition is smaller than the indoor relative humidity of the (j +1) th partition, the second temperature difference judgment value corresponding to the jth partition is larger than the second temperature difference judgment value corresponding to the (j +1) th partition, and p is larger than or equal to 1 and larger than or equal to (j + 1).
Wherein the second temperature difference determination value may be denoted as Aset,rSecond temperature difference determination value Aset,rThe indoor relative humidity phi is compared with the indoor environment dry bulb temperature TdAnd evaporator tube temperature TtThe temperature difference value of (2) is a temperature difference determination value under the condition of single influence.
Specifically, the indoor relative humidity phi is subjected to partition processing, as shown in formula (1-1), the range of the indoor relative humidity phi is judged, and a second temperature difference judgment value A is determined based on the rangeset,rThe value of (a). For example, the indoor relative humidity phi can be divided into p sections, the value range of p is more than or equal to 2 and less than or equal to 5, in the 1 st section to the p th section, the j th section and the (j +1) th section meet the condition that j is more than or equal to 1 and less than (j +1) and less than or equal to p, the indoor relative humidity phi of the j th section is less than the indoor relative humidity phi of the (j +1) th section, and the second temperature difference judgment A corresponding to the j th sectionset,rThe value is larger than a second temperature difference judgment value A corresponding to the (j +1) th partitionset,r. For example, the temperature difference determination value A of the 1 st divisionset,rY + c, temperature difference determination value A of j-th sub-zoneset,rY, temperature difference determination value A of the p-th sectionset,rY-d, and y + c > y-d. That is, in the 1 st to pth zones, the indoor relative humidity Φ is arranged from low to high, and the second temperature difference determination value a set in the different zonesset,rAre all different and the corresponding second temperature difference judgment value A is increased along with the rise of the indoor relative humidity phiset,rAnd is reduced accordingly. Preferably, the difference in the indoor relative humidity Φ in each of the partitions may be set to 10% or more. The value of the y can be a refrigerant leakage protection temperature difference judgment value of the conventional R410A refrigerant dehumidifier, y, c, d and p are positive numbers, and the value of the y is required to be more than or equal to 2 ℃, so that the dehumidifier can be ensured to be capable of detecting refrigerant leakage in a refrigerant leakage rate range of 50% -70% -and enter a refrigerant conventional protection mode.
Figure BDA0003141109070000101
And S27, determining that the indoor relative humidity belongs to the j-th subarea.
Firstly, the detected indoor relative humidity phi is determined to be located in p sections of the set indoor relative humidity phi, and the indoor relative humidity phi is determined to belong to the jth section.
And S28, acquiring a second temperature difference judgment value corresponding to the jth partition as a target temperature difference judgment value.
In the embodiment, after the indoor relative humidity phi is detected, the partition where the indoor relative humidity phi is located is determined according to the partition method shown in the formula (1-2), and the second temperature difference corresponding to the partition is used for determining the value Aset,rAs a target temperature difference determination value.
In some embodiments of the invention, the indoor relative humidity φ is taken into account in relation to the indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtThe target temperature difference judgment value is corrected by adopting a mode of processing the indoor relative humidity phi in a partitioning manner, and the dehumidifier can be adjustably controlled to enter a refrigerant conventional protection mode under different indoor relative humidity phi, so that more accurate refrigerant leakage control is realized.
In some embodiments of the present invention, as shown in fig. 4, which is a method of controlling a dehumidifier according to still another embodiment of the present invention, wherein the temperature difference determination value is obtained according to the set section to which the temperature difference determination reference parameter belongs, the above step S2 may further include steps S29-S212, as follows.
And S29, the reference parameter for temperature difference judgment comprises the dry bulb temperature of the indoor environment and the indoor relative humidity.
Wherein the dry bulb temperature T of the indoor environment is taken into considerationdAnd the indoor relative humidity phi will be related to the indoor environment dry bulb temperature TdAnd evaporator tube temperature TtCan be used for adjusting the dry bulb temperature T of the indoor environmentdAnd the indoor relative humidity phi are both used as temperature difference judgment reference parameters.
S210, setting g first sub-partitions of indoor environment dry bulb temperature, wherein the indoor environment dry bulb temperature of the Kth first sub-partition is lower than the indoor environment dry bulb temperature of the (K +1) th first sub-partition, setting h sub-partitions of indoor relative humidity, the indoor relative humidity of the Lth second sub-partition is lower than the indoor relative humidity of the (L +1) th second sub-partition, constructing the g first sub-partitions and the h second sub-partitions into (g multiplied by h) partitions, and setting corresponding third temperature difference judgment values for each partition, wherein the g is more than or equal to 1 and less than or equal to (K +1) and the L +1 is more than or equal to 1.
Wherein the third temperature difference determination value may be denoted as Aset,mThird temperature difference determination value Aset,mIs the dry bulb temperature T from the indoor environmentdAnd indoor relative humidity phi to indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtThe temperature difference value of (2) generates a temperature difference determination value under the coupling influence.
Specifically, the dry bulb temperature T of the indoor environmentdAnd the indoor relative humidity phi is subjected to partition processing, as shown in the formula (1-3), the indoor environment dry bulb temperature T is judgeddAnd the range of the indoor relative humidity phi, and determining a third temperature difference determination value A based on the rangeset,mThe value of (a). For example, the indoor environment may be dried to a temperature TdIs divided into g first sub-subareas, can divide the indoor relative humidity phi into h second sub-subareas, the value range of g is more than or equal to 2 and less than or equal to 5, the value range of h is more than or equal to 2 and less than or equal to 5, and in the 1 st first sub-subarea to the g first sub-subarea, the Kth first sub-subarea and the (K +1) th first sub-subarea meet that K is more than or equal to 1 and less than (K +1) and less than or equal to g, and the indoor environment dry bulb temperature T of the Kth first sub-subareadIs less than the indoor environment dry bulb temperature T of the (K +1) th first sub-subaread. And in the 1 st second sub-partition to the h second sub-partition, the L second sub-partition and the (L +1) th second sub-partition satisfy 1L < (L +1) h, and the indoor relative humidity phi of the L second sub-partition is smaller than that of the (L +1) th second sub-partition. Constructing g first sub-partitions and h second sub-partitions into (g × h) partitions, each of which is provided with a corresponding third temperature difference determination value Aset,mWherein, g is more than or equal to 1 and less than or equal to (K +1), and h is more than or equal to 1 and less than or equal to (L + 1). The third temperature difference judgment A corresponding to the 1 st first sub-partition and the 1 st second sub-partitionset,mThe value is larger than a third temperature difference judgment value A corresponding to the Kth first sub-partition and the 1 st second sub-partitionset,m. For example, the temperature difference determination value a of the 1 st first sub-division £ 1 st second sub-divisionset,mZ + e, the temperature difference determination value A of the Kth first sub-partition ^ 1 th second sub-partitionset,mZ, the temperature difference decision value of the gth first sub-partition and the gth second sub-partitionAset,mZ-f, and z + e > z-f. That is, in the 1 st first sub-division & '1 st second sub-division to the g th first sub-division &' th second sub-division, the indoor ambient dry bulb temperature TdA third temperature difference determination value A set in different subareas and arranged from low to high relative humidity phi in the roomset,mAre all unequal and the dry bulb temperature T of the indoor environmentdAnd the rise of indoor relative humidity phi and the corresponding third temperature difference judgment value Aset,mAnd is reduced accordingly. Preferably, the indoor ambient dry bulb temperature T in each zone may be determineddThe difference of (a) is set to 5 ℃ or more, and the difference of the indoor relative humidity phi in each zone is set to 10% or more. The value of the z value can be a refrigerant leakage protection temperature difference judgment value of the conventional R410A refrigerant dehumidifier, the z, m, e and f are positive numbers, and the value of the z value is required to be more than or equal to 2 ℃, so that the dehumidifier can be ensured to be capable of detecting refrigerant leakage in a refrigerant leakage rate range of 50% -70%, and enter a refrigerant conventional protection mode.
Figure BDA0003141109070000121
S211, determining that the indoor environment dry bulb temperature belongs to the Kth first sub-partition and the indoor relative humidity belongs to the Lth second sub-partition.
Wherein the detected indoor environment dry bulb temperature T is determined firstlydIs located in the set indoor environment and has a dry bulb temperature TdDetermining that the detected indoor relative humidity phi is positioned in h sections of the set indoor relative humidity phi, and determining the indoor environment dry bulb temperature TdBelonging to the kth zone, and determining that the indoor relative humidity phi belongs to the lth zone.
S212, a third temperature difference determination value corresponding to the (K × L) th partition is obtained as a target temperature difference determination value.
In an embodiment, when the indoor environment dry bulb temperature T is detecteddAnd after the indoor relative humidity phi is reached, determining the indoor environment dry bulb temperature T according to the partition method shown in the formula (1-3)dAnd the section in which the indoor relative humidity phi is located willThe third temperature difference judgment value A corresponding to the subareaset,mAs a target temperature difference determination value.
In some embodiments of the invention, the dry bulb temperature T is taken into account in the indoor environmentdAnd indoor relative humidity phi to indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtBy taking the dry bulb temperature T of the indoor environmentdThe target temperature difference judgment value is corrected in a mode of processing the indoor relative humidity phi in a subarea mode, and the dry bulb temperature T can be realized in different indoor environmentsdAnd under the indoor relative humidity phi, the dehumidifier is adjustably controlled to enter a refrigerant conventional protection mode, so that more accurate refrigerant leakage control is realized.
In some embodiments of the present invention, as shown in fig. 5, there is provided a method of controlling a dehumidifier according to still another embodiment of the present invention, wherein when the first temperature difference determination value a is obtainedset,dOr the second temperature difference determination value Aset,rOr a third temperature difference determination value Aset,mAnd then, the method for controlling the dehumidifier further comprises the following steps: steps S5-S7 are as follows.
And S5, obtaining the refrigerant type of the dehumidifier.
In the embodiment, the refrigerants in different dehumidifier products may be different, taking the R410A refrigerant and the R32 refrigerant as examples, the refrigerant in the current dehumidifier product is mainly R410A, and part of the refrigerants in the dehumidifier is also R32. Due to the increasingly strict environmental protection policy in the world, the refrigerant usage of R410A is initially limited, and since the GWP (Global Warming Potential) of R32 is only 67.9% of R410A, R32 refrigerant is currently the most likely refrigerant to replace R410A. Because of the physical differences among different types of refrigerants, the conventional refrigerant leakage protection program designed based on the test parameters of the R410A refrigerant cannot be directly applied to a dehumidifier of R32 or other types of refrigerants, and the type of the refrigerant of the dehumidifier needs to be considered to execute a method for controlling the dehumidifier.
And S6, obtaining a correction coefficient according to the refrigerant type.
The correction coefficient is represented as m, and the corresponding correction coefficient m is obtained based on the difference in physical properties between different types of refrigerants, and for example, the correction coefficient of R410A may be set to m1, and the correction coefficient of R32 may be set to m 0.6 to 0.9, based on the R410A refrigerant commonly used in the conventional dehumidifier product. When the dehumidifier leaves a factory, the corresponding refrigerant correction coefficient m can be obtained according to the refrigerant type in the dehumidifier product, and the correction coefficient m is stored in the dehumidifier in advance.
And S7, correcting the first temperature difference judgment value, the second temperature difference judgment value or the third temperature difference judgment value according to the correction coefficient to obtain a target temperature difference judgment value.
In the embodiment, the first temperature difference determination value aset,dOr the second temperature difference determination value Aset,rOr a third temperature difference determination value Aset,mThe temperature difference judgment values are calculated according to different temperature difference judgment reference parameters, and the temperature difference judgment values can be corrected according to the correction coefficient m aiming at the dehumidifier using different refrigerants, so that more accurate temperature difference judgment values can be obtained. For example, the first temperature difference determination value a may be setset,dMultiplying the correction coefficient m to obtain a corrected first temperature difference judgment value Aset,dM, or, determining the second temperature difference as the value Aset,rMultiplying the correction coefficient m to obtain a corrected second temperature difference determination value Aset,rM, or, determining the third temperature difference as the value Aset,mMultiplying the correction coefficient m to obtain a corrected third temperature difference determination value Aset,m*m。
According to the method for controlling the dehumidifier, the temperature difference judgment value is corrected based on the physical property difference of different types of refrigerants, the related program algorithm is simple, the corrected temperature difference judgment value is obtained as the target temperature difference judgment value, and the method can adapt to the influences of different refrigerant types, indoor thermal environments and other existing dehumidifier protection programs on refrigerant leakage protection, so that the control accuracy degree of the refrigerant leakage protection is improved.
In some embodiments of the present invention, as shown in fig. 6, there is a flowchart of a method for controlling a dehumidifier according to another embodiment of the present invention, wherein before the dehumidifier is controlled to enter the refrigerant normal protection mode, i.e. before the step S4 is executed, the method for controlling the dehumidifier further includes a step S41 and a step S42, which are described in detail below.
And S41, recording the duration that the temperature difference value is smaller than the target temperature difference judgment value.
When the temperature difference value is smaller than the target temperature difference judgment value, the duration of the temperature difference value smaller than the target temperature difference judgment value needs to be recorded for ensuring the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe temperature difference value has certain reliability, and the error caused by the external interference of the temperature difference value is avoided.
And S42, if the duration reaches the first time and the compressor of the dehumidifier continuously operates within the first time, controlling the dehumidifier to enter a refrigerant conventional protection mode. Wherein the first time period may be set to 5-10 minutes, for example, the first time period may be 5 minutes.
For example, in general, the exhaust temperature of a dehumidifier using the R32 refrigerant is higher than that of a dehumidifier using the R410A refrigerant, and a compressor protection program of the dehumidifier is coupled with a refrigerant leakage protection program in an actual process of the dehumidifier using the R32 refrigerant. For example, when the refrigerant leakage rate of R32 is 40%, the dehumidifier triggers the compressor protection program when the indoor ambient temperature is high, and if the compressor stops operating for a while, it is determined that the temperature difference value is smaller than the target temperature difference determination value and the duration reaches the preset duration to enter the refrigerant leakage protection program, the compressor will continuously maintain the state of stopping operating, which may cause the shutdown time of the compressor to exceed 1 hour.
In the actual operation process of the dehumidifier, after the compressor operates for a period of time, the situation that the temperature difference value is smaller than the target temperature difference judgment value and the duration time reaches the first duration time may occur, but in the whole duration time interval, if the compressor does not keep the operation state all the time, the situation that the dehumidifier triggers the compressor protection program under the condition that the indoor environment temperature is higher may occur. If the condition that the compressor protection program of the dehumidifier is coupled with the refrigerant leakage protection program is not considered, the dehumidifier is controlled to enter a refrigerant conventional protection mode under the condition that the compressor protection program is started, and the use of a user is possibly influenced due to overlong stop time of the compressor.
In order to avoid the coupling of the compressor protection program and the refrigerant leakage protection program of the dehumidifier, in the embodiment, when the duration that the temperature difference value is smaller than the target temperature difference judgment value reaches the first duration and the compressor is determined to continuously run within the first duration, the dehumidifier is controlled to enter the conventional refrigerant protection mode so as to decouple the refrigerant leakage protection and the compressor start protection from possible winding, thereby improving the control accuracy degree of the refrigerant leakage protection.
In some embodiments of the present invention, as shown in fig. 7, a flowchart of a method for controlling a dehumidifier according to another embodiment of the present invention is provided, wherein the method for controlling a dehumidifier further includes steps S8-S10, which are described as follows.
And S8, detecting that the dehumidifier meets the exit condition of exiting the refrigerant conventional protection mode, and controlling the dehumidifier to exit the refrigerant conventional protection mode.
In the embodiment, when it is determined that the temperature difference value is greater than or equal to the target temperature difference determination value. Or controlling the compressor of the dehumidifier to pause in the conventional refrigerant protection mode, wherein the pause time of the compressor reaches a second time length. Or the dehumidifier receives a dehumidifier stopping instruction. And when any one of the protection modes is met, controlling the dehumidifier to exit the refrigerant conventional protection mode.
And under the refrigerant conventional protection mode, the compressor is suspended for running, but the fan keeps running state, and the fan is used for blowing off the leaked refrigerant quantity of the dehumidifier in time within the second time length so as to avoid the leaked refrigerant quantity from accumulating at the same position. The second time period is determined by the initial refrigerant charge and the refrigerant type of the dehumidifier, for example, if the refrigerant type is R32 and the initial refrigerant charge is less than 150g, the second time period may be set to 20-30 min. Under the condition of the same refrigerant type, the second time length is correspondingly increased along with the increase of the initial refrigerant charge, and the increasing step length is preferably 10min-20 min.
And S9, recording the continuous times of the dehumidifier entering the refrigerant conventional protection mode.
Specifically, the continuous times that the dehumidifier enters the conventional refrigerant protection mode can be recorded as n, and the dehumidifier can be prevented from being mistakenly judged to enter the conventional refrigerant protection mode by recording the continuous times that the dehumidifier enters the conventional refrigerant protection mode.
And S10, when determining that the continuous times reach the preset times and determining that the temperature difference value is smaller than the target temperature difference determination value again, controlling the compressor of the dehumidifier to stop running and carrying out refrigerant leakage alarm prompting.
The preset times can be set to be 2 times or 3 times, when the continuous times n are determined to be equal to the preset times, the temperature difference value is determined to be smaller than the target temperature difference judgment value again, namely the number of times that the dehumidifier continuously enters the conventional refrigerant protection mode reaches the preset times, but the refrigerant leakage condition still exists, the dehumidifier needs to enter the conventional refrigerant leakage protection mode again, the dehumidifier is controlled to enter the final refrigerant leakage protection mode, at the moment, the compressor stops running and is not started any more, the refrigerant leakage alarm prompt is carried out, and the fan is turned off after running for a period of time.
When the dehumidifier gives a refrigerant leakage alarm prompt, the alarm information of the refrigerant leakage can be continuously displayed on the display panel, for example, a specific fault code can be displayed or a fault lamp continuously flickers to give a prompt, and the prompt information can be sent to the intelligent control terminal to prompt a user about the refrigerant leakage condition of the dehumidifier.
In some embodiments of the present invention, as shown in fig. 8, there is a flowchart of a method of controlling a dehumidifier according to still another embodiment of the present invention, wherein the temperature difference determination reference parameter includes an indoor environment dry bulb temperature TdMeanwhile, the method for controlling the dehumidifier may include the steps Sd1-Sd10, which are described in detail below.
Sd1, begin.
Sd2, acquiring the refrigerant type of the dehumidifier, and acquiring a correction coefficient m according to the refrigerant type.
And Sd3, judging whether the compressor runs for a preset time, if so, executing step Sd4, and if not, continuing to execute step Sd 3. The preset time period may be set to 20-35 minutes.
Sd4, acquiring the indoor environment dry bulb temperature, and acquiring a first temperature difference judgment value according to the formula (1-1).
And Sd5, judging whether the temperature difference value is less than a first temperature difference judgment value m within the continuous first time length, if so, executing step Sd6, and if not, continuing to execute step Sd 5.
And Sd6, judging whether the continuous operation of the compressor is satisfied within the continuous first time length, if so, executing step Sd7, and if not, continuing to execute step Sd 6.
Sd7, the dehumidifier enters a refrigerant normal protection mode.
And Sd8, judging whether the refrigerant normal protection mode exit condition is satisfied, if the judgment result is yes, executing step Sd9, and if the judgment result is no, continuing executing step Sd 8.
And Sd9, judging whether the number of the continuous times of entering the refrigerant normal protection mode reaches a preset number, if so, executing step Sd9, and if not, continuing to execute step Sd 10.
And Sd10, entering a refrigerant leakage final protection mode.
In some embodiments of the present invention, as shown in fig. 9, which is a flowchart of a method of controlling a dehumidifier according to still another embodiment of the present invention, wherein when the temperature difference determination reference parameter includes an indoor relative humidity, the method of controlling the dehumidifier may include steps of Sr1-Sr10, as follows.
Sr1, start.
Sr2, obtaining the refrigerant type of the dehumidifier, and obtaining the correction coefficient m according to the refrigerant type.
Sr3, judging whether the compressor runs for a preset time, if the judgment result is 'yes', executing the step Sr4, and if the judgment result is 'no', continuing to execute the step Sr 3. The preset time period may be set to 20-35 minutes.
Sr4, obtaining the indoor environment dry bulb temperature, and obtaining a second temperature difference judgment value according to the formula (1-2).
And Sr5, judging whether the temperature difference value is less than a second temperature difference judging value m within the continuous first time length, if so, executing the step Sr6, and if not, continuing to execute the step Sr 5.
Sr6, judging whether the continuous operation of the compressor is satisfied within the continuous first time period, if so, executing the step Sr7, and if not, continuing to execute the step Sr 6.
Sr7, the dehumidifier enters the refrigerant normal protection mode.
Sr8, determining whether the refrigerant normal protection mode exit condition is satisfied, if yes, executing step Sr9, if no, continuing to execute step Sr 8.
And Sr9, judging whether the continuous times of entering the refrigerant normal protection mode reach the preset times, if so, executing the step Sr9, and if not, continuing to execute the step Sr 10.
Sr10, enters a refrigerant leakage final protection mode.
In some embodiments of the present invention, as shown in FIG. 10, there is a flowchart of a method for controlling a dehumidifier according to another embodiment of the present invention, wherein the temperature difference determination reference parameter includes an internal ambient dry bulb temperature TdAnd the indoor relative humidity phi, the method for controlling the dehumidifier may comprise the steps of Sm1-Sm10, as follows.
Sm1, start.
Sm2, obtaining the refrigerant type of the dehumidifier, and obtaining the correction coefficient m according to the refrigerant type.
And Sm3, judging whether the compressor runs for a preset time, if so, executing a step Sm4, and if not, continuing to execute a step Sm 3. The preset time period may be set to 20-35 minutes.
Sm4, obtaining the indoor environment dry bulb temperature and the indoor environment humidity, and obtaining a third temperature difference judgment value according to the formula (1-3).
Sm5 judges whether the temperature difference value is less than a third temperature difference judging value m in the continuous first time length, if the judgment result is 'yes', the step Sm6 is executed, and if the judgment result is 'no', the step Sm5 is continuously executed.
And Sm6, judging whether the continuous operation of the compressor is met within the continuous first time length, if the judgment result is 'yes', executing a step Sm7, and if the judgment result is 'no', continuing to execute a step Sm 6.
Sm7, the dehumidifier enters into the refrigerant normal protection mode.
Sm8 judges whether the refrigerant normal protection mode exit condition is satisfied, if the judgment result is yes, the step Sm9 is executed, and if the judgment result is no, the step Sm8 is continuously executed.
And Sm9, judging whether the continuous times of entering the refrigerant normal protection mode reach the preset times, if the judgment result is 'yes', executing a step Sm9, and if the judgment result is 'no', continuously executing a step Sm 10.
Sm10, entering a refrigerant leakage final protection mode.
In an embodiment, the dry bulb temperature T is taken into account in the indoor environmentdTo the dry bulb temperature T of the indoor environmentdAnd evaporator tube temperature TtThe temperature difference value of (a) or the indoor relative humidity phi to the indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtThe temperature difference value of (a), or the dry bulb temperature T of the indoor environmentdAnd indoor relative humidity phi to indoor ambient dry bulb temperature TdAnd evaporator tube temperature TtThe first temperature difference judgment value is corrected by adopting a partition processing mode and introducing a correction coefficient m, so that the method can adapt to the influence of different refrigerant types, indoor thermal environments and other existing dehumidifier protection programs on refrigerant leakage protection, and further realize more accurate refrigerant leakage control.
In some embodiments of the present invention, a computer-readable storage medium is also proposed, on which a computer program is stored, wherein the computer program is characterized in that when being executed by a processor, the computer realizes the method for controlling a dehumidifier of any one of the above embodiments.
According to the computer-readable storage medium of the embodiment of the invention, the computer program is stored on the computer-readable storage medium, when the computer program runs, the running parameters of each structure in the dehumidifier can be obtained for analysis and calculation, the target temperature difference judgment value is corrected by introducing the correction coefficient m and adopting the modes of partition processing and the like, the method can adapt to different refrigerant types and indoor thermal environments, thereby realizing more accurate refrigerant leakage control protection, and the related algorithm programs are simpler, more convenient and more efficient.
In some embodiments of the present invention, as shown in fig. 11, a block diagram of a dehumidifier according to an embodiment of the present invention is shown, wherein the dehumidifier 10 includes a body 1, a temperature sensor 2, a processor 3 and a memory 4. The body 1 comprises an evaporator 11, the evaporator 11 is provided with a coil, and a temperature sensor 2 is used for detecting the temperature T of the evaporator tubet。
In an embodiment, the evaporator tube temperature TtIn relation to the arrangement position of the coil pipes, when only one coil pipe is arranged in the dehumidifier, the coil pipe is arranged at the position which is lower than the center line between the refrigerant inlet and the refrigerant outlet of the evaporator as far as possible, and cannot be arranged near the refrigerant inlet of the evaporator. If the number of the coil pipes in the dehumidifier is more than 1, a coil pipe can be specially arranged at the refrigerant outlet of the evaporator for controlling and protecting the leakage of the refrigerant of the dehumidifier.
The processor 3 is communicatively connected to the memory 4. Wherein, the memory 4 stores a computer program executable by the processor 3, and the processor 3 implements the method for controlling the dehumidifier of any one of the above embodiments when executing the computer program.
In the embodiment, after the dehumidifier 10 is started, the processor 3 obtains and executes the computer program in the memory 4, the processor 3 can send out instructions according to the running of the computer program so as to control the running state of each module in the dehumidifier 10, the processor 3 executes the computer program, can obtain a target temperature difference judgment value according to a set partition to which a temperature difference judgment reference parameter belongs, and calculates the indoor environment dry-bulb temperature TdAnd evaporator tube temperature TtThe temperature difference value of (1) and the target temperature difference determination value are corrected according to the correction coefficient, so as to execute the method for controlling a dehumidifier of any one of the above embodiments, and the implementation process of the control method may refer to the description of the above embodiments, which is not described herein again.
According to the dehumidifier 10 of the embodiment of the invention, after the dehumidifier is started to operate, the temperature sensor 2 detects the temperature of the evaporation tube to obtain the temperature of the evaporation tube, and the computer program in the memory 4 operates to calculateIndoor environment dry bulb temperature TdAnd evaporator tube temperature TtAnd the processor 3 can issue instructions according to the running of the computer program to control the running state of each module in the dehumidifier 10, so as to execute the method for controlling the dehumidifier of any one of the above embodiments. The dehumidifier 10 can adapt to different refrigerant types and indoor thermal environments, can more accurately reflect the refrigerant leakage condition and carry out control protection, and related algorithm programs are simple, more convenient and efficient.
Other constructions and operations of the dehumidifier 10 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A method of controlling a dehumidifier, comprising:
acquiring the temperature of an evaporator tube of the dehumidifier, the temperature of an indoor environment dry bulb and a temperature difference judgment reference parameter;
obtaining a target temperature difference judgment value according to a set partition to which the temperature difference judgment reference parameter belongs;
calculating the temperature difference value between the indoor environment dry bulb temperature and the evaporator tube temperature;
and determining that the temperature difference value is smaller than the target temperature difference judgment value, and controlling the dehumidifier to enter a refrigerant conventional protection mode.
2. The method of claim 1, wherein obtaining the temperature difference determination value according to the setting partition to which the temperature difference determination reference parameter belongs comprises:
the temperature difference judgment reference parameter comprises the indoor environment dry bulb temperature;
setting q subareas of the indoor environment dry bulb temperature, wherein each subarea is provided with a corresponding first temperature difference judgment value, the indoor environment dry bulb temperature of the ith subarea is less than the indoor environment dry bulb temperature of the (i +1) th subarea, the first temperature difference judgment value corresponding to the ith subarea is greater than the first temperature difference judgment value corresponding to the (i +1) th subarea, and the value is more than or equal to 1 and less than or equal to (i + 1);
determining that the indoor environment dry bulb temperature belongs to the ith zone;
and acquiring a first temperature difference judgment value corresponding to the ith partition as the target temperature difference judgment value.
3. The method of claim 1, wherein obtaining the temperature difference determination value according to the setting partition to which the temperature difference determination reference parameter belongs comprises:
the temperature difference determination reference parameter comprises indoor relative humidity;
setting p partitions of the indoor relative humidity, wherein each partition is provided with a corresponding second temperature difference judgment value, the indoor relative humidity of the jth partition is smaller than the indoor relative humidity of the (j +1) th partition, the second temperature difference judgment value corresponding to the jth partition is larger than the second temperature difference judgment value corresponding to the (j +1) th partition, and the value is more than or equal to (j +1) and less than or equal to p;
determining that the indoor relative humidity belongs to a jth zone;
and acquiring a second temperature difference judgment value corresponding to the jth partition to be used as the target temperature difference judgment value.
4. The method of claim 1, wherein obtaining the temperature difference determination value according to the setting partition to which the temperature difference determination reference parameter belongs comprises:
the temperature difference determination reference parameters comprise the indoor environment dry bulb temperature and the indoor relative humidity;
setting g first sub-divisions of the indoor ambient dry bulb temperature, the indoor ambient dry bulb temperature of the Kth first sub-division being less than the indoor ambient dry bulb temperature of the (K +1) th first sub-division, and setting h sub-divisions of the indoor relative humidity, the indoor relative humidity of the Lth second sub-division being less than the indoor relative humidity of the (L +1) th second sub-division, constructing the g first sub-divisions and the h second sub-divisions into (g × h) divisions, each division setting a corresponding third temperature difference determination value, wherein 1 ≦ g (K +1), 1 ≦ L +1 ≦ h;
determining that the indoor environment dry bulb temperature belongs to a Kth first sub-partition and the indoor relative humidity belongs to a Lth second sub-partition;
and acquiring a third temperature difference judgment value corresponding to the (KxL) th partition as the target temperature difference judgment value.
5. A method of controlling a dehumidifier according to any of claims 2 to 4 wherein said method further comprises:
acquiring the type of a refrigerant of the dehumidifier;
obtaining a correction coefficient according to the type of the refrigerant;
and correcting the first temperature difference judgment value, the second temperature difference judgment value or the third temperature difference judgment value according to the correction coefficient to obtain the target temperature difference judgment value.
6. The method of claim 1, wherein before controlling the dehumidifier to enter the refrigerant normal protection mode, the method further comprises:
recording the duration that the temperature difference value is smaller than the target temperature difference judging value;
and if the duration reaches a first duration and the compressor of the dehumidifier continuously operates within the first duration, controlling the dehumidifier to enter a refrigerant conventional protection mode.
7. The method of controlling a dehumidifier of claim 1 further comprising:
detecting that the dehumidifier meets an exit condition for exiting the refrigerant conventional protection mode, and controlling the dehumidifier to exit the refrigerant conventional protection mode;
recording the continuous times of the dehumidifier entering the refrigerant conventional protection mode;
and when the continuous times reach the preset times and the temperature difference value is determined to be smaller than the target temperature difference judgment value again, controlling the compressor of the dehumidifier to stop running and carrying out refrigerant leakage alarm prompting.
8. A method of controlling a dehumidifier according to claim 7 wherein said exit condition is at least one of:
the temperature difference value is greater than or equal to the target temperature difference judgment value;
controlling a compressor of the dehumidifier to pause in the conventional refrigerant protection mode, wherein the pause time of the compressor reaches a second time length, and the second time length is determined by the initial refrigerant charge amount and the refrigerant type of the dehumidifier;
and receiving a dehumidifier shutdown instruction.
9. A computer-readable storage medium on which a computer program is stored, wherein the computer, when executed by a processor, implements the method of controlling a dehumidifier according to any one of claims 1-8.
10. A dehumidifier, comprising:
a housing including an evaporator having a coil;
the temperature sensor is used for detecting the temperature of the coil of the evaporator;
a processor and a memory communicatively coupled to the processor;
wherein the memory stores a computer program executable by the processor, and the processor implements the method of controlling a dehumidifier according to any one of claims 1 to 8 when executing the computer program.
CN202110740100.8A 2021-06-30 2021-06-30 Method of controlling dehumidifier, and computer-readable storage medium Active CN113432212B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110740100.8A CN113432212B (en) 2021-06-30 2021-06-30 Method of controlling dehumidifier, and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110740100.8A CN113432212B (en) 2021-06-30 2021-06-30 Method of controlling dehumidifier, and computer-readable storage medium

Publications (2)

Publication Number Publication Date
CN113432212A true CN113432212A (en) 2021-09-24
CN113432212B CN113432212B (en) 2022-09-16

Family

ID=77758255

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110740100.8A Active CN113432212B (en) 2021-06-30 2021-06-30 Method of controlling dehumidifier, and computer-readable storage medium

Country Status (1)

Country Link
CN (1) CN113432212B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024060699A1 (en) * 2022-09-19 2024-03-28 海尔(深圳)研发有限责任公司 Method and apparatus for controlling dehumidifier, and dehumidifier and storage medium

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06257904A (en) * 1993-03-09 1994-09-16 Fujitsu General Ltd Controller for airconditioning apparatus
WO2010007448A1 (en) * 2008-07-14 2010-01-21 Theodoros Efthymiou Automatic refrigerant leak detection system of indirect means for use on cooling and refrigeration units installed on vehicles and other transportation means.
JP2010210098A (en) * 2009-03-06 2010-09-24 Mitsubishi Heavy Ind Ltd Refrigerating device and method of detecting leakage of refrigerant in the refrigerating device
CN104315666A (en) * 2014-10-30 2015-01-28 广东美的制冷设备有限公司 Air conditioner and coolant leakage warning method for air conditioner
CN104566771A (en) * 2013-10-23 2015-04-29 珠海格力电器股份有限公司 Refrigerant control method and device of dehumidifier
CN105546712A (en) * 2015-12-03 2016-05-04 珠海格力电器股份有限公司 Humidity detection method, device and system for dehumidifier
CN106568223A (en) * 2016-10-25 2017-04-19 珠海格力电器股份有限公司 Control method and device for refrigerant circulation abnormity of air conditioner and air conditioner
CN106595152A (en) * 2016-10-25 2017-04-26 珠海格力电器股份有限公司 Method and device for determining abnormal circulation of air conditioner refrigerant and air conditioner
CN110410933A (en) * 2019-06-24 2019-11-05 青岛海尔空调器有限总公司 Air conditioner refrigerant leakage detection method
WO2020008625A1 (en) * 2018-07-06 2020-01-09 三菱電機株式会社 Refrigeration cycle device
CN110895025A (en) * 2018-09-12 2020-03-20 奥克斯空调股份有限公司 Air conditioner refrigerant leakage detection method and air conditioner using same
CN111121222A (en) * 2019-12-31 2020-05-08 Tcl空调器(中山)有限公司 Fluorine-lack protection method for air conditioner, air conditioner and readable storage medium
CN111457549A (en) * 2020-04-09 2020-07-28 海信（广东）空调有限公司 Control method of air conditioner
CN112240623A (en) * 2020-09-30 2021-01-19 青岛海尔空调器有限总公司 Control method of air conditioner and air conditioner

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06257904A (en) * 1993-03-09 1994-09-16 Fujitsu General Ltd Controller for airconditioning apparatus
WO2010007448A1 (en) * 2008-07-14 2010-01-21 Theodoros Efthymiou Automatic refrigerant leak detection system of indirect means for use on cooling and refrigeration units installed on vehicles and other transportation means.
JP2010210098A (en) * 2009-03-06 2010-09-24 Mitsubishi Heavy Ind Ltd Refrigerating device and method of detecting leakage of refrigerant in the refrigerating device
CN104566771A (en) * 2013-10-23 2015-04-29 珠海格力电器股份有限公司 Refrigerant control method and device of dehumidifier
CN104315666A (en) * 2014-10-30 2015-01-28 广东美的制冷设备有限公司 Air conditioner and coolant leakage warning method for air conditioner
CN105546712A (en) * 2015-12-03 2016-05-04 珠海格力电器股份有限公司 Humidity detection method, device and system for dehumidifier
CN106568223A (en) * 2016-10-25 2017-04-19 珠海格力电器股份有限公司 Control method and device for refrigerant circulation abnormity of air conditioner and air conditioner
CN106595152A (en) * 2016-10-25 2017-04-26 珠海格力电器股份有限公司 Method and device for determining abnormal circulation of air conditioner refrigerant and air conditioner
WO2020008625A1 (en) * 2018-07-06 2020-01-09 三菱電機株式会社 Refrigeration cycle device
CN110895025A (en) * 2018-09-12 2020-03-20 奥克斯空调股份有限公司 Air conditioner refrigerant leakage detection method and air conditioner using same
CN110410933A (en) * 2019-06-24 2019-11-05 青岛海尔空调器有限总公司 Air conditioner refrigerant leakage detection method
CN111121222A (en) * 2019-12-31 2020-05-08 Tcl空调器(中山)有限公司 Fluorine-lack protection method for air conditioner, air conditioner and readable storage medium
CN111457549A (en) * 2020-04-09 2020-07-28 海信（广东）空调有限公司 Control method of air conditioner
CN112240623A (en) * 2020-09-30 2021-01-19 青岛海尔空调器有限总公司 Control method of air conditioner and air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024060699A1 (en) * 2022-09-19 2024-03-28 海尔(深圳)研发有限责任公司 Method and apparatus for controlling dehumidifier, and dehumidifier and storage medium

Also Published As

Publication number Publication date
CN113432212B (en) 2022-09-16

Similar Documents

Publication Publication Date Title
CN109373656B (en) Compressor output control method and device and air conditioner
CN104024763B (en) The aperture control method of the expansion valve of air conditioner and air conditioner
US10962249B2 (en) Air conditioning apparatus and air conditioning control method
CN106765859A (en) The refrigerated dehumidification control method and air-conditioning system of air-conditioning
WO2020035912A1 (en) Air-conditioning device, control device, air-conditioning method, and program
CN111578472A (en) Control method and device of air conditioner outdoor unit, air conditioner outdoor unit and air conditioner
CN102652245A (en) Air conditioner, method for controlling aperture of expansion valve, and computer readable storage medium for storing program for controlling aperture of expansion valve
CN110307623B (en) Air conditioner and air conditioner control method
JP7026781B2 (en) Air conditioning system
US11313577B2 (en) Air-conditioning system, machine learning apparatus, and machine learning method
CN113432212B (en) Method of controlling dehumidifier, and computer-readable storage medium
US10520213B2 (en) Air conditioner units and methods of operation
JP2020026945A (en) Air conditioning device
JP6835141B2 (en) Air conditioning system
CN107062534B (en) Anti-condensation control system, air conditioner and condensation prevention control method
CN111442504A (en) Operation method and device of air conditioner, air conditioner and readable storage medium
CN105357939A (en) Electric cabinet temperature humidity control system and method
WO2020035913A1 (en) Air-conditioning device, control device, air-conditioning method, and program
CN116997876A (en) Correction device, prediction device, method, program, and correction model
CN114992776A (en) Refrigerant leakage detection method and device for air conditioning system, air conditioner and storage medium
JP2018103720A (en) Air conditioner
WO2020035911A1 (en) Air-conditioning device, control device, air-conditioning method, and program
CN111397116B (en) Air conditioner air suction dryness control method and device, storage medium and air conditioner
CN109959110B (en) Air conditioner and anti-condensation method and device thereof
US20220113053A1 (en) Control device for air conditioning apparatus, air conditioning system, control method for air conditioning apparatus, and program

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant