CN112762528A - Mildew-proof method and device for dehumidifier - Google Patents
Mildew-proof method and device for dehumidifier Download PDFInfo
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- CN112762528A CN112762528A CN202011588520.0A CN202011588520A CN112762528A CN 112762528 A CN112762528 A CN 112762528A CN 202011588520 A CN202011588520 A CN 202011588520A CN 112762528 A CN112762528 A CN 112762528A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F2003/144—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 by dehumidification only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/228—Treatment of condensate, e.g. sterilising
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to a mildew-proof method of a dehumidifier. The method comprises the following steps: the dehumidifier receives a shutdown instruction; acquiring first humidity and/or first temperature of the surface of an evaporator through a temperature and humidity sensor; performing a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature; the drying control strategy comprises: a first drying control strategy and a second drying control strategy; the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe. The scheme provided by the application can realize the self-drying function of the internal devices of the dehumidifier.
Description
Technical Field
The application relates to the technical field of dehumidifiers, in particular to a mildew-proof method and a mildew-proof device of a dehumidifier.
Background
At present, the market demand of the dehumidifier is increasing day by day, and users have higher requirements on the healthy use of the dehumidifier. The function of the dehumidifier determines that the environment humidity is high when the dehumidifier is used, and a user often selects to directly shut down the dehumidifier after using the dehumidifier, but at the moment, because the surfaces of internal components of the dehumidifier, mainly the surface of an evaporator, still have condensate water which is not discharged, and because the evaporator still has temperature difference with the air in the dehumidifier, new condensate water is easily formed on the surface of the evaporator. The dehumidifier is closed after a user shuts down, bacteria are bred and mildewed in the closed system under a long-time wet state, and the dehumidifier is not beneficial to healthy use, so that a mildewproof method of the dehumidifier is needed to solve the problem of humidity of internal devices after the dehumidifier shuts down.
In the prior art, in a patent publication No. CN110986250A (a control method for drying and preventing mold of an air conditioner), a mold-preventing method of an air conditioner is proposed, in which an operation mode of the air conditioner before shutdown is determined after the equipment is shutdown, an electric heater is started to dry internal components of the equipment, humidity detection is performed by a humidity sensor, and a shutdown time of the electric heater is determined according to a humidity comparison result before and after the electric heater is turned on.
The above prior art has the following disadvantages:
according to the scheme, a control strategy is not formulated according to the actual change condition of the humidity in the drying device, so that the humidity is still at a higher level after drying treatment and cannot play a role in mildew prevention, and the invalid working time of the drying device is too long.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides the mildew-proof method of the dehumidifier, and the mildew-proof method of the dehumidifier can effectively realize the function of self-drying of internal components after the dehumidifier is shut down.
The application provides a mould-proof method for a dehumidifier in a first aspect, which comprises the following steps:
the dehumidifier receives a shutdown instruction;
acquiring first humidity and/or first temperature of the surface of an evaporator through a temperature and humidity sensor;
performing a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature;
the drying control strategy comprises: a first drying control strategy and a second drying control strategy;
the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe.
In one embodiment, the plurality of drying control strategies is a first drying control strategy, and the drying control strategy is executed to dry the surface of the evaporator according to a first humidity and/or a first temperature, and includes:
when the first humidity is higher than a%, controlling the fan to run at a high speed;
when the first humidity is between b% and a%, controlling the fan to run at a low speed, and when the first humidity is lower than c%, controlling the fan to stop running;
a% is greater than b% and b% is greater than c%.
In an embodiment, the drying control strategy is executed to dry the surface of the evaporator according to a first humidity and/or a first temperature, and the method further includes:
controlling the working state of the temperature and humidity sensor according to the first temperature, the second temperature and the first humidity, wherein the second temperature is a preset temperature threshold value when air cooling reaches saturation;
and controlling the on-off state of the fan or the heating pipe according to the working state of the temperature and humidity sensor.
In an embodiment, controlling the operating state of the temperature and humidity sensor according to the first temperature, the second temperature and the first humidity includes:
comparing the first temperature with the second temperature;
when the first temperature is lower than the second temperature, the temperature and humidity sensor keeps a detection state;
and when the first temperature is higher than the second temperature and the first humidity is lower than c%, controlling the temperature and humidity sensor to stop detecting.
In an embodiment, after the drying control strategies are the first drying control strategy and the on-off state of the fan or the heating pipe is controlled according to the working state of the temperature and humidity sensor, the method includes:
when the temperature and humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
In one embodiment, the plurality of drying control strategies is a second drying control strategy, and the drying control strategy is executed to dry the surface of the evaporator according to the first humidity and/or the first temperature, and includes:
and when the first humidity is higher than b%, triggering the heating pipe to start, and controlling the heating pipe to be closed until the first humidity is lower than c%.
In an embodiment, the plurality of drying control strategies is a second drying control strategy, and the drying control strategy is executed to dry the surface of the evaporator according to the first humidity and/or the first temperature, and the method further includes:
comparing the first temperature with the third temperature;
the third temperature is a preset temperature threshold value for preventing the heating pipe from enabling the surface temperature of the evaporator to be too high;
and if the first temperature is higher than the third temperature in the working process of the heating pipe, controlling the heating pipe to be forcibly closed.
In an embodiment, after the drying control strategies are the second drying control strategy and the on-off state of the fan or the heating pipe is controlled according to the working state of the temperature and humidity sensor, the method includes:
when the temperature and humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
This application second aspect provides a dehumidifier mould proof device, includes:
the instruction receiving unit is used for receiving a shutdown instruction by the dehumidifier;
a sensing data acquisition unit for acquiring a first humidity and/or a first temperature of the evaporator surface;
a drying processing unit for executing a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature; the drying control strategy comprises: a first drying control strategy and a second drying control strategy; the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe.
In an embodiment, the drying processing unit is specifically configured to:
if the drying control strategy is a first drying control strategy, controlling the fan to operate at a high speed when the first humidity is higher than a%;
when the first humidity is between b% and a%, controlling the fan to operate at a low speed, and when the first humidity is lower than c%, controlling the fan to stop operating;
the a% is greater than the b% and the b% is greater than the c%.
In an embodiment, the drying processing unit is specifically configured to:
if the drying control strategy is a second drying control strategy, when the first humidity is higher than b%, the heating pipe is triggered to be started, and when the first humidity is lower than c%, the heating pipe is controlled to be closed.
The technical scheme provided by the application can comprise the following beneficial effects:
after a user inputs a shutdown instruction, a first humidity and/or a first temperature on the surface of an evaporator are/is detected through a temperature and humidity sensor, and a drying control strategy is executed according to the first humidity and/or the first temperature to dry the surface of the evaporator, so that the purposes of reducing the internal humidity of the dehumidifier and drying condensed water in the dehumidifier are achieved. Compared with the prior art, the scheme makes a drying control strategy according to the actual change condition of the humidity in the dehumidifier, so that the problem of overlong invalid working time of the fan or the heating pipe can be avoided, the humidity in the dehumidifier can be ensured to be reduced to a target value, and the effect of healthy use of the dehumidifier is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic flow chart of an embodiment of a method for preventing mold in a dehumidifier according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of an embodiment of a method for preventing mold in a dehumidifier according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of an embodiment of a method for mildewproofing a dehumidifier according to an embodiment of the present application;
FIG. 4 is a schematic flow chart of a fourth embodiment of a method for preventing mold in a dehumidifier according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a dehumidifier mildew-proof apparatus according to an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
At present, the market demand of the dehumidifier is increasing day by day, and users have higher requirements on the healthy use of the dehumidifier. The function of the dehumidifier determines that the environment humidity is high when the dehumidifier is used, and a user often selects to directly shut down the dehumidifier after using the dehumidifier, but at the moment, because the surfaces of internal components of the dehumidifier, mainly the surface of an evaporator, still have condensate water which is not discharged, and because the evaporator still has temperature difference with the air in the dehumidifier, new condensate water is easily formed on the surface of the evaporator. The dehumidifier is closed when a user shuts down, bacteria are bred and moldy taste is produced in the closed system under a long-time wet state, and the dehumidifier is not beneficial to the healthy use. In the related technology, the operation mode of the air conditioner before shutdown is judged after the equipment is shut down, the electric heater is started to dry the internal components of the equipment, the humidity sensor is used for detecting the humidity, and the closing time of the electric heater is judged according to the humidity comparison result before and after the electric heater is started.
In view of the above problems, the embodiment of the application provides a dehumidifier mildew-proof method, which can effectively realize the function of self-drying internal components after the dehumidifier is turned off.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the method for mildew prevention of a dehumidifier in the embodiment of the present application includes:
101. the dehumidifier receives a shutdown instruction;
after the dehumidifier receives the shutdown instruction, the dehumidifier cannot be completely powered off and shutdown, and firstly, the internal operation part of the dehumidifier can be shut down, for example: the method comprises the following steps that an evaporator, a condenser, a compressor and the like, a control center and devices for executing drying, such as a fan or a heating pipe, keep powered on to operate, a shutdown instruction reaches the control center of the dehumidifier, and the self-drying function of the dehumidifier is triggered to start to execute.
102. Acquiring first humidity and/or first temperature of the surface of an evaporator through a temperature and humidity sensor;
the temperature and humidity sensor takes a temperature and humidity integrated probe as a temperature measuring element, collects temperature and humidity signals, converts the temperature and humidity signals into current signals or voltage signals which are in linear relation with the temperature and humidity after being processed by circuits such as voltage stabilizing filtering, operational amplification, nonlinear correction, V/I conversion, constant current and reverse protection and the like, and outputs the current signals or the voltage signals, and can also directly output the current signals or the voltage signals through interfaces such as 485 or 232 by a main control chip. In this embodiment, the analog quantity type temperature and humidity sensor, the 485 type temperature and humidity sensor, or the network type temperature and humidity sensor may be used, and it is understood that the selection of the temperature and humidity sensor is not limited in this embodiment, and may be any temperature and humidity sensor.
The evaporator is an important part in refrigeration equipment, and low-temperature condensed liquid passes through the evaporator to exchange heat with external air, gasify and absorb heat, thereby achieving the refrigeration effect. Because of the above function of the evaporator, during the heat exchange process, the water vapor with higher temperature in the outside air liquefies when meeting the surface of the evaporator with lower temperature, and liquid water is formed on the surface of the evaporator.
The first humidity is defined as the humidity on the surface of the evaporator and is detected by a temperature and humidity sensor to monitor the humidity level in the dehumidifier.
The first temperature is defined as the temperature of the surface of the evaporator, and is detected by a temperature and humidity sensor to monitor the temperature condition of the surface of the evaporator.
103. Performing a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature;
the drying control strategy comprises: a first drying control strategy and a second drying control strategy. The first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing humidity by controlling the operating state of the heating pipe.
In practical applications, which drying control strategy is used is determined according to the structural components of the dehumidifier (e.g., whether a heating pipe is provided or not, or whether a fan is provided or not). Assuming only a fan in the dehumidifier, the surface of the evaporator is dried using a first drying control strategy. Assuming only the heating pipes are in the dehumidifier, the surface of the evaporator is dried using a second drying control strategy. If the dehumidifier is provided with the fan and the heating pipe at the same time, the drying control strategy is selected according to the actual demand of the user and the power consumption condition of the equipment, and the method is not limited specifically here.
The first embodiment described above shows the following advantages:
after a user inputs a shutdown instruction, a first humidity and/or a first temperature on the surface of an evaporator are/is detected through a temperature and humidity sensor, and a drying control strategy is executed according to the first humidity and/or the first temperature to dry the surface of the evaporator, so that the purposes of reducing the internal humidity of the dehumidifier and drying condensed water in the dehumidifier are achieved. Compared with the prior art, the scheme makes a drying control strategy according to the actual change condition of the humidity in the dehumidifier, so that the problem of overlong invalid working time of the fan or the heating pipe can be avoided, the humidity in the dehumidifier can be ensured to be reduced to a target value, and the effect of healthy use of the dehumidifier is achieved.
Example two
For convenience of understanding, an embodiment of a method for preventing mildew of a dehumidifier is provided below for explanation, in practical application, a humidity sensor is used to detect humidity on a surface of an evaporator, and when the humidity meets a set threshold, a drying function can be performed, please refer to fig. 2, where an embodiment of a method for preventing mildew of a dehumidifier in an embodiment of the present application includes:
201. the dehumidifier receives a shutdown instruction;
in the embodiment of the present application, the specific content of step 201 is similar to that of step 101 in the first embodiment, and is not described herein again.
202. Acquiring first humidity of the surface of the evaporator through a humidity sensor;
humidity sensors are used for humidity measurement, and there are many representations based on humidity definition, and a humidity sensor can be defined as an electronic sensor/device that measures the relative humidity of the environment.
It is understood that, in practical applications, the humidity sensor has a wide variety of types, and there are various ways for implementing the humidity detection in the embodiment, and the selection of the humidity sensor is not limited herein.
203. Drying the surface of the evaporator according to a drying control strategy executed according to the first humidity;
if only the fan is in the dehumidifier, controlling the operation mode of the fan according to the first humidity:
when the first humidity is higher than a%, controlling the fan to run at a high speed; and when the first humidity is between b% and a%, controlling the fan to run at a low speed, and stopping the fan when the first humidity is lower than c%.
If only a heating pipe is arranged in the dehumidifier, controlling the on-off state of the heating pipe according to the first humidity:
and when the first humidity is higher than b%, triggering the heating pipe to start, and controlling the heating pipe to be closed until the first humidity is lower than c%.
According to big data investigation, when the surface humidity of air or objects reaches more than 40%, mould is rapidly generated, and the phenomenon of mould is easy to occur. In practical application, the value of a% can be 55% to 65%, specifically 60%; the value of b% can be 45% to 35%, specifically 40%; the value of c% may be 25% to 35%, specifically, 30%.
204. Powering off and shutting down the dehumidifier;
when the humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
The humidity sensor stops detecting, which shows that the humidity level in the dehumidifier reaches the target value, and the fan does not need to be operated to dry the surface of the evaporator, and at the moment, the dehumidifier can be powered off and shut down.
The following beneficial effects can be seen from the second embodiment:
after a user inputs a shutdown instruction, the humidity sensor detects the humidity on the surface of the evaporator, the operation mode of the fan is determined to be a drying control strategy, the drying control strategy is executed according to the first humidity to dry the surface of the evaporator, and the purposes of reducing the internal humidity of the dehumidifier and drying condensed water in the dehumidifier are achieved. The problem that the invalid working time of the fan or the heating pipe is too long can be avoided, the internal humidity of the dehumidifier can be detected to be reduced to the target value, and the effect of healthy use of the dehumidifier is achieved.
EXAMPLE III
For convenience of understanding, an embodiment of a method for preventing mildew in a dehumidifier is provided below for explanation, and in practical application, the humidity and the temperature of the surface of the evaporator are simultaneously detected by the temperature and humidity sensor, and the operation mode of the fan is controlled to perform a drying function. Referring to fig. 3, an embodiment of a method for mildew prevention of a dehumidifier in the embodiment of the present application includes:
301. the dehumidifier receives a shutdown instruction;
in the embodiment of the present application, the specific content of step 301 is similar to that of step 101 in the first embodiment, and is not described herein again.
302. Acquiring first humidity and first temperature on the surface of an evaporator through a temperature and humidity sensor;
in the embodiment of the present application, the specific content of step 302 is similar to that of step 102 in the first embodiment, and is not described herein again.
303. Performing a first drying control strategy to dry the surface of the evaporator according to a first humidity and a first temperature;
controlling the operation mode of the fan according to the first humidity:
when the first humidity is higher than a%, controlling the fan to run at a high speed; and when the first humidity is between b% and a%, controlling the fan to run at a low speed, and stopping the fan when the first humidity is lower than c%. The values of a%, b%, and c% are the same as those described in step 203 in the second embodiment, and are not described herein again.
And controlling the continuous detection state of the temperature and humidity sensor according to the first temperature, the second temperature and the first humidity, wherein the second temperature is a preset temperature threshold when the air cooling reaches saturation, namely the dew point temperature.
In this embodiment, a temperature threshold, i.e., a second temperature, is preset for determining whether the water vapor in the air will liquefy into liquid water, i.e., if the first temperature is lower than the second temperature, it is determined that the water vapor in the air will still liquefy into liquid water, and the temperature and humidity detection cannot be stopped; if the first temperature is higher than the second temperature, it is determined that the water vapor in the air is not liquefied into liquid water, and the temperature and humidity detection may be stopped when the humidity also decreases to a target value.
Specifically, the first temperature is compared with the second temperature, when the first temperature is lower than the second temperature, the temperature and humidity sensor keeps a detection state, and the fan is controlled to continue blowing and drying as long as the humidity is detected to be higher than 40% again; and when the first temperature is higher than the second temperature and the first humidity is lower than 30%, controlling the temperature and humidity sensor to stop detecting.
304. Powering off and shutting down the dehumidifier;
when the humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
The humidity sensor stops detecting, which shows that the humidity level in the dehumidifier reaches the target value, and the temperature on the surface of the evaporator reaches the target temperature at which the water vapor can not be liquefied again, so that the surface of the evaporator is not required to be dried by starting the fan again, and the dehumidifier can be powered off and shut down at the moment.
The following beneficial effects can be seen from the third embodiment:
after a user inputs a shutdown instruction, a first humidity and a first temperature on the surface of an evaporator are detected through a temperature and humidity sensor, and a first drying control strategy is executed according to the first humidity and the first temperature to dry the surface of the evaporator, so that the purposes of reducing the internal humidity of the dehumidifier and drying condensed water in the dehumidifier are achieved. According to the scheme, the drying control strategy is formulated according to the actual change conditions of the humidity and the temperature in the dehumidifier, the problem of too long invalid working time of the fan can be avoided, the humidity in the dehumidifier can be ensured to be reduced to the target value, and the effect of healthy use of the dehumidifier is achieved.
Example four
For convenience of understanding, an embodiment of a method for preventing mildew of a dehumidifier is provided below for explanation, and in practical application, the temperature and humidity sensor is used for simultaneously detecting the humidity and the temperature on the surface of the evaporator, and the on-off state of the heating pipe is controlled to execute a drying function. Referring to fig. 4, an embodiment of a method for preventing mold in a dehumidifier in the embodiment of the present application includes:
401. the dehumidifier receives a shutdown instruction;
in the embodiment of the present application, the specific content of step 401 is similar to that of step 101 in the first embodiment, and is not described herein again.
402. Acquiring first humidity and first temperature on the surface of an evaporator through a temperature and humidity sensor;
in the embodiment of the present application, the specific content of step 402 is similar to that of step 102 in the first embodiment, and is not described herein again.
403. Executing a second drying control strategy according to the first humidity and the first temperature to dry the surface of the evaporator;
controlling the on-off state of the heating pipe according to the first humidity and the first temperature:
and when the first humidity is higher than b%, triggering the heating pipe to start, and controlling the heating pipe to be closed until the first humidity is lower than c%.
In this embodiment, a temperature threshold, i.e. a third temperature, is preset to prevent the heating pipe from causing the surface temperature of the evaporator to be too high, i.e. if the first temperature is higher than the third temperature, the surface temperature of the evaporator is over-high by default, and is in a dangerous state, and the heating needs to be forcibly stopped, so as to avoid damaging the evaporator; if the first temperature is kept lower than the third temperature, the evaporator is in a safe state and the drying operation can be continued.
And comparing the first temperature with the third temperature, and controlling the heating pipe to be forcibly closed if the first temperature is higher than the third temperature in the working process of the heating pipe.
Comparing the first temperature with the second temperature, specifically, when the first temperature is lower than the second temperature, the temperature and humidity sensor keeps a detection state, and the heating pipe is controlled to restart heating as long as the humidity is detected to be higher than b% again; and when the first temperature is higher than the second temperature and the first humidity is lower than c%, controlling the temperature and humidity sensor to stop detecting.
According to big data investigation, when the surface humidity of air or objects reaches more than 40%, mould is rapidly generated, and the phenomenon of mould is easy to occur. In practical application, the value of b% can be 45% to 35%, specifically 40%; the value of c% may be 25% to 35%, specifically, 30%.
404. The power-off shutdown of the wet engine is eliminated;
when the humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
The humidity sensor stops detecting, which shows that the humidity level in the dehumidifier reaches the target value, and the temperature on the surface of the evaporator reaches the target temperature at which the water vapor can not be liquefied again, so that the heating pipe is not required to be started again to dry the surface of the evaporator, and the dehumidifier can be powered off and shut down at the moment.
The following beneficial effects can be seen from the fourth embodiment:
after a user inputs a shutdown instruction, a first humidity and a first temperature on the surface of the evaporator are detected through the temperature and humidity sensor, and a second drying control strategy is executed according to the first humidity and the first temperature to dry the surface of the evaporator, so that the purposes of reducing the internal humidity of the dehumidifier and drying condensed water in the dehumidifier are achieved. According to the scheme, a drying control strategy is formulated according to the actual change conditions of the humidity and the temperature in the dehumidifier, the problem of overlong invalid working time of the heating pipe can be avoided, the humidity in the dehumidifier can be ensured to be reduced to a target value, the heating pipe can be prevented from being excessively heated to damage internal devices of the dehumidifier, and the effect of healthy use of the dehumidifier is achieved.
Corresponding to the embodiment of the application function implementation method, the application also provides a dehumidifier mildew-proof device and a corresponding embodiment.
Referring to fig. 5, the mildew-proof device of the dehumidifier includes:
an instruction receiving unit 501, configured to receive a shutdown instruction by the dehumidifier;
a sensing data acquisition unit 502 for acquiring a first humidity and/or a first temperature of the evaporator surface;
a drying processing unit 503, configured to execute a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature; the drying control strategy comprises: a first drying control strategy and a second drying control strategy; the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe.
The drying processing unit is specifically configured to:
if the drying control strategy is a first drying control strategy, controlling the fan to operate at a high speed when the first humidity is higher than a%;
when the first humidity is between b% and a%, controlling the fan to operate at a low speed, and when the first humidity is lower than c%, controlling the fan to stop operating;
the a% is greater than the b% and the b% is greater than the c%.
The drying processing unit is specifically configured to:
if the drying control strategy is a second drying control strategy, when the first humidity is higher than b%, the heating pipe is triggered to be started, and when the first humidity is lower than c%, the heating pipe is controlled to be closed.
In the embodiment of the present application, reference may be made to the above method embodiment for specific implementation steps of the mildew-proof device of the dehumidifier, which are not described herein in detail.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the applications disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A mildew-proof method for a dehumidifier is characterized by comprising the following steps:
the dehumidifier receives a shutdown instruction;
acquiring first humidity and/or first temperature of the surface of an evaporator through a temperature and humidity sensor;
performing a drying control strategy to dry a surface of the evaporator according to the first humidity and/or the first temperature; the drying control strategy comprises: a first drying control strategy and a second drying control strategy; the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe.
2. The dehumidifier mildew-proof method according to claim 1,
if the drying control strategy is a first drying control strategy, the performing a drying control strategy according to the first humidity and/or the first temperature to dry the surface of the evaporator includes:
when the first humidity is higher than a%, controlling the fan to run at a high speed;
when the first humidity is between b% and a%, controlling the fan to operate at a low speed, and when the first humidity is lower than c%, controlling the fan to stop operating;
the a% is greater than the b% and the b% is greater than the c%.
3. The dehumidifier mildew-proof method according to claim 1,
the performing a drying control strategy to dry a surface of the evaporator according to the first humidity and/or the first temperature further comprises:
controlling the working state of the temperature and humidity sensor according to the first temperature, a second temperature and the first humidity, wherein the second temperature is a preset temperature threshold value when air cooling reaches saturation;
and controlling the on-off state of the fan or the heating pipe according to the working state of the temperature and humidity sensor.
4. The dehumidifier mildew-proof method according to claim 3,
the controlling the working state of the temperature and humidity sensor according to the first temperature, the second temperature and the first humidity comprises:
the first temperature is compared with the second temperature;
when the first temperature is lower than the second temperature, the temperature and humidity sensor keeps a detection state;
and when the first temperature is higher than the second temperature and the first humidity is lower than c%, controlling the temperature and humidity sensor to stop detecting.
5. The dehumidifier mildew-proof method according to claim 3,
if the drying control strategy is a first drying control strategy, after controlling the on-off state of the fan or the heating pipe according to the working state of the temperature and humidity sensor, the method comprises the following steps:
and when the temperature and humidity sensor is detected to stop detecting, the dehumidifier is powered off and shut down.
6. The dehumidifier mildew-proof method according to claim 1,
if the drying control strategy is a second drying control strategy, the performing a drying control strategy according to the first humidity and/or the first temperature to dry the surface of the evaporator includes:
and when the first humidity is higher than b%, triggering the heating pipe to start, and controlling the heating pipe to be closed until the first humidity is lower than c%.
7. The dehumidifier mildew-proof method according to claim 6,
if the drying control strategy is a second drying control strategy, the drying control strategy is executed according to the first humidity and/or the first temperature to dry the surface of the evaporator, and the method further includes:
comparing the first temperature with a third temperature;
the third temperature is a preset temperature threshold value for preventing the heating pipe from enabling the surface temperature of the evaporator to be too high;
and if the first temperature is higher than the third temperature in the working process of the heating pipe, controlling the heating pipe to be forcibly closed.
8. A mildew proof device of a dehumidifier is characterized by comprising:
the instruction receiving unit is used for receiving a shutdown instruction by the dehumidifier;
a sensing data acquisition unit for acquiring a first humidity and/or a first temperature of the evaporator surface;
a drying processing unit for executing a drying control strategy to dry the surface of the evaporator according to the first humidity and/or the first temperature; the drying control strategy comprises: a first drying control strategy and a second drying control strategy; the first drying control strategy is a strategy for reducing humidity by controlling the operation mode of the fan; the second drying control strategy is a strategy of reducing the humidity by controlling the on-off state of the heating pipe.
9. The dehumidifier mildew-proof device of claim 8,
the drying processing unit is specifically configured to:
if the drying control strategy is a first drying control strategy, controlling the fan to operate at a high speed when the first humidity is higher than a%;
when the first humidity is between b% and a%, controlling the fan to operate at a low speed, and when the first humidity is lower than c%, controlling the fan to stop operating;
the a% is greater than the b% and the b% is greater than the c%.
10. The dehumidifier mildew-proof device of claim 8,
the drying processing unit is specifically configured to:
if the drying control strategy is a second drying control strategy, when the first humidity is higher than b%, the heating pipe is triggered to be started, and when the first humidity is lower than c%, the heating pipe is controlled to be closed.
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