CN111486548B - Air conditioner outdoor unit filter screen processing method and device and air conditioner - Google Patents
Air conditioner outdoor unit filter screen processing method and device and air conditioner Download PDFInfo
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- CN111486548B CN111486548B CN202010321920.9A CN202010321920A CN111486548B CN 111486548 B CN111486548 B CN 111486548B CN 202010321920 A CN202010321920 A CN 202010321920A CN 111486548 B CN111486548 B CN 111486548B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/42—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
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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
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/10—Weather information or forecasts
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Abstract
According to the air conditioner outdoor unit filter screen processing method and device and the air conditioner, different filter screen cleaning modes are adopted according to different weather conditions, compared with the processing mode in the prior art, the processing mode is more intelligent, more accurate and timely, the cleaning effect of the filter screen is improved to a certain extent, and compared with the monitoring mode and the cleaning mode in the prior art, the processing mode is more energy-saving and has great significance for energy conservation and environmental protection.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for processing a filter screen of an outdoor unit of an air conditioner and the air conditioner.
Background
The prior art includes a scheme for detecting the cleanliness of a filter screen, but the prior art has a single detection means for the filter screen, and does not provide a switching mode for cleaning the filter screen, for example, after the filter screen of the outdoor unit is dirty and blocked, a user is prompted to clean the filter screen, which requires the user to disassemble the filter screen in person, the general user cannot carry out the cleaning, and only can wait for professional technical personnel to clean the filter screen, which wastes time and labor and costs a lot, or some schemes can solve the problem of dirty and blocked by the automatic cleaning of the filter screen through an air conditioner, but the prior automatic cleaning mode does not consider the influence of the weather reason of the environment in which the filter screen is used on cleaning the filter screen, so that the cleaning mode of the filter screen cannot effectively meet the requirement, has low intelligent degree, and in order to monitor the filter screen, the controlled parameters need to be detected in real time, and the condition of the filter screen can be ensured to be reflected in time, the monitoring parameters are excessive, and the energy consumption of the sensor is also considered in the energy-saving range.
Disclosure of Invention
The embodiment of the invention provides a method and a device for processing a filter screen of an outdoor unit of an air conditioner and the air conditioner. Which is intended to solve at least the above-mentioned technical problems occurring in the prior art.
In order to solve the technical problem, the invention proposes a first aspect: the utility model provides an air conditioner outdoor unit filter screen processing method, air conditioner outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen state detection part of casing, the filter screen is located air intake and the air outlet department of air conditioner outdoor unit casing, its characterized in that: the electric control box is internally provided with a weather information receiving unit, a current comparison circuit and a fan switching circuit, the bottom of the shell of the outdoor unit of the air conditioner is provided with a water storage disc, a water pump is arranged in the water storage disc, the outlet side of the water pump faces to the filter screen through a spray pipe, and the cleaning mode of the filter screen of the outdoor unit of the air conditioner is correspondingly controlled according to real-time weather information.
Furthermore, water in the water storage disc comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner, the condensate water of the indoor unit is guided to the water storage disc of the outdoor unit through the drain pipe to be stored, and pumping is carried out when the indoor unit condensate water is needed to be used.
Further, the weather information receiving unit is communicated with the server in a wireless communication mode to obtain real-time weather information and weather conditions of a future period of time, and based on the weather information, the cleaning mode of the filter screen of the outdoor unit of the air conditioner, which is to be used, is automatically judged. Specifically, when the weather information received by the weather information receiving unit is dry/clear, after the filter screen is judged to be dirty and blocked, the fan switching circuit is controlled to switch, so that the fan of the air conditioner outdoor unit rotates reversely, dust at the filter screen is blown away reversely and falls off, and the filter screen is cleaned. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the filter screen state detecting part includes a current sensor configured to detect a real-time current of the fan of the outdoor unit of the air conditioner, and compares an actual measurement value with a current preset value using a current comparing circuit in the electric control box, and determines that the filter screen is dirty-clogged when the real-time current drops to 0.7 to 0.8 times the preset value.
Further, the filter screen state detection component comprises a voltage sensor, and the voltage sensor is used for acquiring the real-time voltage of the outdoor fan motor; calculating to obtain the real-time power of the motor according to the motor voltage and the motor current; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is greater than a first threshold value and lasts for a first preset time. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of rotating the fan of the outdoor unit of the air conditioner in the reverse direction, the fan rotates in the reverse direction at a preset frequency for a first preset time, and stops at intervals of a first preset time length, completes a cycle, and repeatedly controls for 2 or 3 cycles.
Furthermore, in the normal operation process, an air quantity sensor is arranged at the position of the air inlet filter screen, and when the detected air quantity is lower than 80% of the initial air quantity value corresponding to the clean filter screen, the situation that dirty and blockage are possible to occur is judged, and the weather information is automatically acquired.
And further, under the condition that the dirty and blockage needs to be removed by spraying, the water pump is controlled to work, the PWM module is arranged in the electric control box and correspondingly controls the output voltage to control the frequency of the water pump, preferably, the highest frequency of the water pump is adopted to continuously output second preset time, the water pump stops after stopping for the second preset time at intervals, one period is finished, and the water pump stops after 2 or 3 periods of continuous control, so that the aim of cleaning the filter screen is fulfilled.
The invention proposes a second aspect scheme: the utility model provides a dirty stifled detection and processing apparatus of air conditioner outdoor unit filter screen, air conditioner outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen and the filter screen state detection part of casing, the filter screen is located air intake and the exhaust vent department of air conditioner outdoor unit casing, its characterized in that: the remote bidirectional wireless interaction module is arranged in the electric control box and comprises a weather information receiving unit; the control box is characterized in that the control box is internally provided with a current comparison circuit and a fan switching circuit, a water storage disc is arranged at the bottom of the shell of the outdoor unit of the air conditioner, a water pump is arranged in the water storage disc, the outlet side of the water pump faces the filter screen through a spray pipe, and the control box correspondingly controls the cleaning mode of the filter screen of the outdoor unit of the air conditioner according to real-time weather information.
The invention proposes a third aspect: the utility model provides an air conditioner, includes outdoor unit and the indoor unit who corresponds with outdoor unit, outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen and the filter screen state detection part of casing, the filter screen is located air intake and the exhaust vent department of air conditioner outdoor unit casing, its characterized in that: the remote bidirectional wireless interaction module is arranged in the electric control box and comprises a weather information receiving unit; the control box is characterized in that the control box is internally provided with a current comparison circuit and a fan switching circuit, a water storage disc is arranged at the bottom of the shell of the outdoor unit of the air conditioner, a water pump is arranged in the water storage disc, the outlet side of the water pump faces the filter screen through a spray pipe, and the control box correspondingly controls the cleaning mode of the filter screen of the outdoor unit of the air conditioner according to real-time weather information.
The scheme provided by the embodiment of the invention comprehensively considers different situations causing filth blockage of the filter screen of the outdoor unit of the air conditioner, and the scheme of cleaning the filter screen is correspondingly arranged according to different situations, so that compared with the traditional treatment mode in the prior art, the method is more intelligent, more accurate and more timely, the cleaning effect of the filter screen is improved to a certain extent, and compared with the monitoring mode in the prior art, the method is more energy-saving and has great significance for energy conservation and environmental protection.
Drawings
Fig. 1 is a schematic structural diagram of an electric control box of the invention.
Fig. 2 is a flow chart of a filter screen processing method of an air conditioning outdoor unit according to embodiment 1 of the present invention.
Fig. 3 is a control flow chart of the detection and processing device for filth blockage of the filter screen of the air conditioning outdoor unit in embodiment 2 of the invention.
Fig. 4 is a control flowchart of an air conditioner according to embodiment 3 of the present invention.
Detailed Description
Example 1:
the utility model provides an air conditioner outdoor unit filter screen processing method, air conditioner outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen state detection part of casing, the filter screen is located air intake and the air outlet department of air conditioner outdoor unit casing, its characterized in that: the electric control box 1 is internally provided with a weather information receiving unit 2, a current comparison circuit 3 and a fan switching circuit 4, the bottom of the shell of the outdoor unit of the air conditioner is provided with a water storage disc, a water pump is arranged in the water storage disc, the outlet side of the water pump faces to the filter screen through a spray pipe, and the cleaning mode of the filter screen of the outdoor unit of the air conditioner is correspondingly controlled according to real-time weather information.
Furthermore, water in the water storage disc comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner, the condensate water of the indoor unit is guided to the water storage disc of the outdoor unit through the drain pipe to be stored, and pumping is carried out when the indoor unit condensate water is needed to be used.
Further, the weather information receiving unit communicates with the server 5 in a wireless communication mode to obtain real-time weather information and weather conditions of a future period of time, and automatically judges a cleaning mode of a filter screen of an air conditioner outdoor unit to be used based on the weather information. Specifically, when the weather information received by the weather information receiving unit is dry/clear, after the filter screen is judged to be dirty and blocked, the fan switching circuit is controlled to switch, so that the fan of the air conditioner outdoor unit rotates reversely, dust at the filter screen is blown away reversely and falls off, and the filter screen is cleaned. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the filter screen state detecting part includes a current sensor configured to detect a real-time current of the fan of the outdoor unit of the air conditioner, and compares an actual measurement value with a current preset value by using a current comparing circuit in the electric control box, and determines that the filter screen is dirty and blocked when the real-time current drops to 0.8 times of the preset value.
Further, the filter screen state detection component comprises a voltage sensor, and the voltage sensor is used for acquiring the real-time voltage of the outdoor fan motor; calculating to obtain the real-time power of the motor according to the motor voltage and the motor current; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is more than 15% and lasts for 8 seconds. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of rotating the fan of the outdoor unit of the air conditioner in the reverse direction, the rotating speed of the fan is correspondingly controlled to be the highest rotating speed, a period of 5 seconds and 10 seconds is set to be continuous, and normal operation is resumed after 2-3 periods are continuously completed.
Further, when the situation that dirty and blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, the highest frequency of the water pump is continuously output for 10 seconds, then the water pump stops for 5 seconds to serve as a period, and the water pump stops after 3 periods of continuous control, so that the purpose of cleaning the filter screen is achieved.
The judgement to the filth stifled filter screen in this embodiment has included the common judgement of multi-parameter, satisfies under one of them circumstances, just judges for taking place filth stifled, and for prior art's single judgement, the information covers more comprehensively, has prevented comprehensively that air condensing units from the adverse effect that brings air conditioning unit under the filth stifled condition, has ensured the stability of air conditioner operation, promotes user experience comprehensively.
Simultaneously this application is through acquireing the clean mode of the required filter screen of weather information automatic judgement, and fundamentally has avoided the clean effect that a simple clean mode of filter screen does not correspond with weather and leads to poor, the problem of extravagant energy, and outdoor unit casing bottom is provided with the water storage disk simultaneously, and its make full use of the air conditioner operation in-process produced congeals water, belongs to the discarded object and recycles, accords with environmental protection and energy saving's requirement.
Example 2:
the utility model provides an air conditioner outdoor unit filter screen processing apparatus, air conditioner outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen and the filter screen state detection part of casing, the filter screen is located air intake and the air outlet department of air conditioner outdoor unit casing, its characterized in that: the remote bidirectional wireless interaction module is arranged in the electric control box and comprises a weather information receiving unit; the control box is characterized in that the control box is internally provided with a current comparison circuit and a fan switching circuit, a water storage disc is arranged at the bottom of the shell of the outdoor unit of the air conditioner, a water pump is arranged in the water storage disc, the outlet side of the water pump faces the filter screen through a spray pipe, and the control box correspondingly controls the cleaning mode of the filter screen of the outdoor unit of the air conditioner according to real-time weather information.
Furthermore, water in the water storage disc comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner, the condensate water of the indoor unit is guided to the water storage disc of the outdoor unit through the drain pipe to be stored, and pumping is carried out when the indoor unit condensate water is needed to be used. Further, the weather information receiving unit communicates with the server 5 in a wireless communication mode to obtain real-time weather information and weather conditions of a future period of time, and automatically judges a cleaning mode of a filter screen of an air conditioner outdoor unit to be used based on the weather information. Specifically, when the weather information received by the weather information receiving unit is dry/clear, after the filter screen is judged to be dirty and blocked, the fan switching circuit is controlled to switch, so that the fan of the air conditioner outdoor unit rotates reversely, dust at the filter screen is blown away reversely and falls off, and the filter screen is cleaned. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the filter screen state detecting part includes a current sensor configured to detect a real-time current of the fan of the outdoor unit of the air conditioner, and compares an actual measurement value with a current preset value by using a current comparing circuit in the electric control box, and determines that the filter screen is dirty and blocked when the real-time current drops to 0.7 times of the preset value.
Further, the filter screen state detection component comprises a voltage sensor, and the voltage sensor is used for acquiring the real-time voltage of the outdoor fan motor; calculating to obtain the real-time power of the motor according to the motor voltage and the motor current; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is more than 12% and lasts for 10 seconds. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of rotating the fan of the outdoor unit of the air conditioner in the reverse direction, the rotating speed of the fan is correspondingly controlled to be the highest rotating speed, a period of continuing for 8 seconds and then stopping for 10 seconds is taken as a period, and normal operation is resumed after 3 periods are continuously completed.
Further, when the situation that dirty and blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, the highest frequency of the water pump is continuously output for 15 seconds and then stopped for 5 seconds to form a period, and the water pump is stopped after 3 periods of continuous control, so that the purpose of cleaning the filter screen is achieved.
This embodiment is directed at the angle of judging whether to take place filth stifled through the electric current, has carried out appropriate down-regulation to the proportion of electric current, is applicable to the good operating mode of outdoor condition, just begins to clear up when the electric current drops to under the condition of 0.7 times default, has practiced thrift the energy consumption, avoids the consumption that excessively clean brought.
Example 3:
the utility model provides an air conditioner, includes outdoor unit and the indoor unit who corresponds with outdoor unit, outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen and the filter screen state detection part of casing, the filter screen is located air intake and the exhaust vent department of air conditioner outdoor unit casing, its characterized in that: the remote bidirectional wireless interaction module is arranged in the electric control box and comprises a weather information receiving unit; the control box is characterized in that the control box is internally provided with a current comparison circuit and a fan switching circuit, a water storage disc is arranged at the bottom of the shell of the outdoor unit of the air conditioner, a water pump is arranged in the water storage disc, the outlet side of the water pump faces the filter screen through a spray pipe, and the control box correspondingly controls the cleaning mode of the filter screen of the outdoor unit of the air conditioner according to real-time weather information.
Furthermore, water in the water storage disc comes from the indoor unit condensate water matched with the outdoor unit of the air conditioner, the condensate water of the indoor unit is guided to the water storage disc of the outdoor unit through the drain pipe to be stored, and pumping is carried out when the indoor unit condensate water is needed to be used.
Further, the weather information receiving unit communicates with the server 5 in a wireless communication mode to obtain real-time weather information and weather conditions of a future period of time, and automatically judges a cleaning mode of a filter screen of an air conditioner outdoor unit to be used based on the weather information. Specifically, when the weather information received by the weather information receiving unit is dry/clear, after the filter screen is judged to be dirty and blocked, the fan switching circuit is controlled to switch, so that the fan of the air conditioner outdoor unit rotates reversely, dust at the filter screen is blown away reversely and falls off, and the filter screen is cleaned. The spray pipe is located the casing is inside towards the filter screen that the casing air intake department set up.
Further, the filter screen state detecting part includes a current sensor configured to detect a real-time current of the fan of the outdoor unit of the air conditioner, and compares an actual measurement value with a current preset value by using a current comparing circuit in the electric control box, and determines that the filter screen is dirty and blocked when the real-time current drops to 0.75 times of the preset value.
Further, the filter screen state detection component comprises a voltage sensor, and the voltage sensor is used for acquiring the real-time voltage of the outdoor fan motor; calculating to obtain the real-time power of the motor according to the motor voltage and the motor current; and obtaining a preset power meter corresponding to the current outdoor environment, comparing, and judging that the air conditioner reaches a filth blockage condition when the absolute value of the difference value of the real-time power and the preset power is more than 8% and lasts for 15 seconds. It can be clear that, in each condition for judging whether the filth blockage occurs, if one condition is met, the filth blockage is judged to occur, and the filth blockage needs to be cleaned as soon as possible to avoid the occurrence of the fault.
Furthermore, a pre-storage module is arranged in the electric control box and used for storing corresponding current preset values and preset power, and a synchronization module is also arranged and used for synchronizing the corresponding current preset values and the preset power to the server so as to facilitate checking and remote control of the server.
Further, in the step of rotating the fan of the outdoor unit of the air conditioner in the reverse direction, the rotating speed of the fan is correspondingly controlled to be the highest rotating speed, a period of continuing for 8 seconds and then stopping for 10 seconds is taken as a period, and normal operation is resumed after 3 periods are continuously completed.
Further, when the situation that dirty and blockage needs to be removed by spraying is judged, the water pump is controlled to work, a PWM module is arranged in the electric control box 1 and correspondingly controls output voltage for controlling the frequency of the water pump, preferably, the highest frequency of the water pump is continuously output for 8 seconds, then the water pump stops for 10 seconds to serve as a cycle, and 3 cycles are continuously controlled, so that the purpose of cleaning the filter screen is achieved.
The present embodiment is a modification of the above embodiment, and is intended to illustrate only the preferred embodiment of the present invention, and not to limit the scope of the invention, and all the modifications and equivalents of the present invention, which are made by the contents of the description and the drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the invention.
Claims (4)
1. The utility model provides an air conditioner outdoor unit filter screen processing method, air conditioner outdoor unit includes the casing and is located compressor, condenser, automatically controlled box and filter screen state detection part of casing, the filter screen is located air intake and the air outlet department of air conditioner outdoor unit casing, its characterized in that: the filter screen state detection component comprises a current sensor which is configured to detect the real-time current of a fan of an outdoor unit of the air conditioner, a current comparison circuit in an electric control box is used for comparing an actual measurement value with a current preset value, when the real-time current drops to 0.75 time of the preset value, the filter screen is determined to be dirty and blocked, a weather information receiving unit, a current comparison circuit and a fan switching circuit are arranged in the electric control box, a water storage disc is arranged at the bottom of a shell of the outdoor unit of the air conditioner, a water pump is arranged in the water storage disc, the outlet side of the water pump faces the filter screen through a spray pipe, and the cleaning mode of the filter screen of the outdoor unit of the air conditioner is correspondingly controlled according to the real-time weather information; the weather information receiving unit is communicated with the server in a wireless communication mode to obtain real-time weather information and weather conditions in a future period of time, when the weather information received by the weather information receiving unit is dry/clear weather, the fan switching circuit is controlled to switch after the filter screen is judged to be dirty and blocked, so that the fan of the outdoor unit of the air conditioner rotates reversely, and when the weather information received by the weather information receiving unit is wet/rainy weather, the electric control box controls the air conditioner to spray and clean water in the water storage disc firstly; in the step of reversely rotating the fan of the outdoor unit of the air conditioner, the fan reversely rotates for a first preset time according to a preset frequency, and stops for a first preset time at intervals, a period is completed, and the period is repeatedly controlled for 2 or 3; when the water pump is used for cleaning, the PWM module is arranged in the electric control box, the PWM module correspondingly controls the output voltage, controls the highest frequency of the water pump to continuously output for a second preset time, stops for a second preset time at intervals, completes a period, and stops after 2 or 3 periods of continuous control.
2. The air conditioner outdoor unit filter screen processing method according to claim 1, characterized in that: the water in the water storage disc comes from the condensed water of the indoor unit matched with the outdoor unit of the air conditioner, and the condensed water of the indoor unit is guided to the water storage disc of the outdoor unit through the drain pipe to be stored.
3. The air conditioner outdoor unit filter screen processing method according to claim 1, characterized in that: the filter screen state detecting part includes a current sensor configured to detect a real-time current of a fan of an outdoor unit of the air conditioner; and/or the filter screen state detection component comprises a voltage sensor, and the voltage sensor is used for acquiring the real-time voltage of the outdoor fan motor; and calculating to obtain the real-time power of the motor according to the motor voltage and the motor current.
4. The air conditioner outdoor unit filter screen processing method according to claim 1, characterized in that: the electric control box is internally provided with a pre-storage module which stores corresponding current preset values and preset power and is also provided with a synchronization module which is in bidirectional communication with the server.
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Effective date of registration: 20220112 Address after: 430030 office and production room (Building 5, Dongfang Industrial Park), plot 2mA, Wuhan Economic and Technological Development Zone, Hubei Province (incubator hcy-c12) Applicant after: Wuhan suoweifan Energy Technology Co.,Ltd. Address before: Room 817, 181 Haibin Road, Nansha District, Guangzhou, Guangdong 510000 Applicant before: Guangzhou Jiapeng Technology Co.,Ltd. |
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