CN117249522A - Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium - Google Patents

Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium Download PDF

Info

Publication number
CN117249522A
CN117249522A CN202210654626.9A CN202210654626A CN117249522A CN 117249522 A CN117249522 A CN 117249522A CN 202210654626 A CN202210654626 A CN 202210654626A CN 117249522 A CN117249522 A CN 117249522A
Authority
CN
China
Prior art keywords
air conditioner
water
water tank
condensed water
evaporator
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.)
Pending
Application number
CN202210654626.9A
Other languages
Chinese (zh)
Inventor
樊其锋
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.)
GD Midea Air Conditioning Equipment Co Ltd
Foshan Shunde Midea Electric Science and Technology Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
Foshan Shunde Midea Electric Science and Technology 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 GD Midea Air Conditioning Equipment Co Ltd, Foshan Shunde Midea Electric Science and Technology Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202210654626.9A priority Critical patent/CN117249522A/en
Publication of CN117249522A publication Critical patent/CN117249522A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/008—Air-humidifier with water reservoir
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Humidification (AREA)

Abstract

The invention discloses a method and a device for collecting humidifying water of an air conditioner, the air conditioner and a storage medium, and belongs to the technical field of air conditioners, wherein the method comprises the following steps: when the air conditioner operates, collecting condensed water of the air conditioner to a humidifying water tank; detecting the water quality condition of condensed water in the humidifying water tank; according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator; and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished. Therefore, the air conditioner can be controlled to automatically clean the evaporator according to the water quality condition, and the condensed water is collected again to the humidifying water tank after the cleaning is finished, so that the condensed water in the humidifying water tank is clean, the clean condensed water in the humidifying water tank is used as humidifying water, peculiar smell can be avoided during humidification, and the health of a user can not be influenced.

Description

Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium
Technical Field
The present invention relates to the technical field of air conditioners, and in particular, to a method and an apparatus for collecting humidification water for an air conditioner, and a storage medium.
Background
Because dust may exist on the evaporator of the air conditioner, condensed water generated by the air conditioner may be dirty, and if the dirty condensed water is collected for humidification, peculiar smell is easily generated and user health is affected.
Disclosure of Invention
The invention mainly aims to provide a method and a device for collecting humidification water of an air conditioner, the air conditioner and a storage medium, and aims to solve the technical problems that dirty condensed water is collected for humidification in the prior art, peculiar smell is easy to generate, and the health of a user is influenced.
In order to achieve the above object, the present invention provides a method for collecting humidification water for an air conditioner, the method comprising:
when the air conditioner operates, collecting condensed water of the air conditioner to a humidifying water tank;
detecting the water quality condition of condensed water in the humidifying water tank;
according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator;
and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished.
Optionally, the controlling the air conditioner to perform self-cleaning of the evaporator includes:
detecting dust coverage of fins of the evaporator;
and controlling the air conditioner to perform self-cleaning of the evaporator according to the detected dust coverage condition.
Optionally, the controlling the air conditioner to perform self-cleaning of the evaporator according to the detected dust coverage condition includes:
determining a dust level based on the detected dust coverage;
when the dust level is greater than or equal to a first preset level, discharging condensed water of the humidifying water tank, and controlling an air conditioner to operate in a refrigeration mode for a preset time according to preset parameters, wherein the preset time is set according to the dust level;
when the dust level is greater than a second preset level and less than a first preset level, discharging condensed water of the humidifying water tank, and cleaning the evaporator for preset times, wherein the preset times are set according to the dust level; wherein the condensed water of the humidification water tank, the condensed water generated during the operation of the air conditioner and/or the water input from the external device are utilized.
Optionally, the detecting the dust coverage condition of the fins of the evaporator includes:
transmitting a detection signal to a fin of the air conditioner, and detecting the signal intensity of a reflected signal reflected by the fin; determining dust coverage of the fins according to the signal intensity; or,
supplying air to the fins of the air conditioner, and detecting inflow air speed and outflow air speed corresponding to the fins; determining a degree of attenuation of the wind based on the inflow wind speed and the outflow wind speed; and determining dust coverage of the fins according to the attenuation degree.
Optionally, the controlling the air conditioner to perform self-cleaning of the evaporator includes:
discharging condensed water in the humidifying water tank, and controlling an operation refrigeration mode of the air conditioner for a preset time period according to preset parameters, wherein the preset time period is set according to dust grades; or,
discharging condensed water of the humidifying water tank, and cleaning the evaporator for preset times, wherein the preset times are set according to dust grades; wherein the condensed water of the humidification water tank, the condensed water generated during the operation of the air conditioner and/or the water input from the external device are utilized.
Optionally, the collecting method further comprises:
and when the air conditioner is operated and the water of the humidifying water tank is determined to be not full, collecting condensed water of the air conditioner to the humidifying water tank.
Optionally, the collecting method further comprises:
and when a humidification start instruction is received, humidifying is carried out through condensed water in the humidification water tank.
In addition, in order to achieve the above object, the present invention also provides a collecting device for humidifying water of an air conditioner, the collecting device comprising:
the condensed water collecting module is used for collecting condensed water of the air conditioner to the humidifying water tank when the air conditioner operates;
the water quality detection module is used for detecting the water quality condition of condensed water in the humidifying water tank;
the self-cleaning module is used for controlling the air conditioner to perform self-cleaning of the evaporator according to the water quality condition;
the condensed water collecting module is further used for collecting condensed water of the air conditioner to the humidifying water tank again after the evaporator is self-cleaned.
In addition, in order to achieve the above object, the present invention also provides an air conditioner, including: the device comprises a memory, a processor and a collection program of the humidifying water of the air conditioner, wherein the collection program of the humidifying water of the air conditioner is stored in the memory and can run on the processor, and the collection method of the humidifying water of the air conditioner is realized when the collection program of the humidifying water of the air conditioner is executed by the processor.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a collection program of humidification water for an air conditioner, which when executed by a processor, implements the collection method of humidification water for an air conditioner as described above.
In the method for collecting the humidifying water of the air conditioner, when the air conditioner operates, the condensed water of the air conditioner is collected to a humidifying water tank; detecting the water quality condition of condensed water in the humidifying water tank; according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator; and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished. Therefore, the air conditioner can be controlled to automatically clean the evaporator according to the water quality condition, and the condensed water is collected again to the humidifying water tank after the cleaning is finished, so that the condensed water in the humidifying water tank is clean, the clean condensed water in the humidifying water tank is used as humidifying water, peculiar smell can be avoided during humidification, and the health of a user can not be influenced.
Drawings
FIG. 1 is a schematic diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a first embodiment of a method for collecting humidification water for an air conditioner according to the present invention;
FIG. 3 is a flow chart illustrating a method for collecting condensed water in a cooling mode according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a second embodiment of a method for collecting humidification water for an air conditioner according to the present invention;
fig. 5 is a schematic functional block diagram of a first embodiment of a collecting device for humidifying water in an air conditioner according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as keys, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., wi-Fi interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the apparatus structure shown in fig. 1 is not limiting of the air conditioner and may include more or fewer components than shown, or may combine certain components, or may be a different arrangement of components.
As shown in fig. 1, a storage 1005, which is a storage medium, may include an operating system, a network communication module, a user interface module, and a collection program of humidification water for an air conditioner.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting to an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting user equipment and communicating data with the user equipment; the apparatus of the present invention calls the collection program of the humidification water of the air conditioner stored in the memory 1005 through the processor 1001, and executes the collection method of the humidification water of the air conditioner provided by the embodiment of the present invention.
Based on the above hardware structure, the embodiment of the method for collecting the humidifying water of the air conditioner is provided.
Referring to fig. 2, fig. 2 is a flow chart schematically illustrating a first embodiment of a method for collecting humidification water for an air conditioner according to the present invention.
In a first embodiment, a method for collecting humidification water for an air conditioner includes:
and step S10, collecting condensed water of the air conditioner to a humidifying water tank when the air conditioner is in operation.
It should be noted that, the execution body of the present embodiment may be a control device of an air conditioner, or may be other devices that can implement the same or similar functions, and this embodiment is not limited thereto.
It should be noted that, the air conditioner in this embodiment may include, but is not limited to, a cabinet air conditioner, a hanging air conditioner, a central air conditioner, and an air conditioner of various types or models, which is not limited in this embodiment.
It should be understood that the air conditioner in this embodiment may include, but is not limited to, a water receiving tray and a humidifying water tank, which may be connected by a pipe. When the air conditioner is in an operating state, condensed water generated by the air conditioner can be collected through the water receiving disc, and the condensed water collected by the water receiving disc is conveyed to the humidifying water tank through the pipeline. Among them, the humidification water tank may be a water tank for storing condensed water for subsequent humidification, to which the present embodiment is not limited.
It can be understood that when the air conditioner is operated in a cooling mode, the indoor heat exchanger is an evaporator, and condensed water is generated at the indoor evaporator; when the air conditioner operates in a heating mode, the outdoor heat exchanger is an evaporator, and condensed water is generated at the outdoor evaporator. Therefore, it is theoretically possible to collect condensed water generated at the evaporator inside the room in the case of the cooling mode, and the condensed water generated at the evaporator outside the room in the case of the heating mode, which is not limited in this embodiment.
It will be appreciated that since the outdoor heat exchanger is installed outdoors, it is generally less clean and therefore more dust is present on the outdoor heat exchanger. And because the indoor environment is humidified, the humidifying water tank is arranged indoors conveniently, and if the condensed water at the outdoor heat exchanger is collected to the humidifying water tank, a longer pipeline is required to be arranged to connect the humidifying water tank and the water receiving disc of the outdoor heat exchanger. Therefore, in order to reduce the cost, improve the collection efficiency of the condensed water, and ensure the cleanliness of the condensed water, in the present embodiment, it is preferable to collect the condensed water at the evaporator in the indoor of the air conditioner to the humidifying water tank in the cooling mode.
In the specific implementation, when the air conditioner operates in a refrigeration mode, condensed water generated at the evaporator can be collected through a water receiving disc of the indoor unit, and the condensed water is transmitted to the humidifying water tank for storage through a pipeline. And, can also set up the valve in the delivery port department of above-mentioned pipeline or water collector, when needing to transmit the comdenstion water to the humidification water tank, open the valve, when not needing to transmit the comdenstion water to the humidification water tank, close the valve, then directly discharge the comdenstion water that gathers in the water collector, this embodiment is not restricted. As shown in fig. 3, fig. 3 is a schematic flow chart of collecting condensed water in a refrigeration mode, when an air conditioner is started and operates in the refrigeration mode, the condensed water is collected into a humidification water tank, the water quality condition in the humidification water tank is detected, whether the condensed water in the humidification water tank is clean or not is determined according to the water quality condition, if yes, the water tank is fully reserved, if not, the water tank is emptied according to the water quality condition, and cleaning measures are executed according to the dust covering condition of fins of an evaporator, after the self-cleaning of the evaporator is completed, the condensed water is collected again into the humidification water tank, and after the water is fully reserved, the reserved condensed water stored in the humidification water tank can be clean by the collection mode, so that the water is more beneficial to the health of users, and the use experience of the users is better.
And step S20, detecting the water quality condition of condensed water in the humidifying water tank.
It will be appreciated that the water quality detection may be performed under the condition that the humidification water tank is full, or periodically, or in real time, and this embodiment is not limited thereto.
It should be noted that the water quality detection method in this embodiment may include, but is not limited to, sensor detection and filter detection, and in this embodiment, sensor detection is taken as an example. The sensor may be a water quality sensor, and may be disposed inside the humidification water tank or in the water inlet pipe, which is not limited in this embodiment, and the bottom disposed inside the humidification water tank is described as an example in this embodiment.
And step S30, controlling the air conditioner to perform self-cleaning of the evaporator according to the water quality condition.
It should be understood that whether the condensed water in the humidification water tank is clean or not can be judged according to the detected water quality condition, and if the condensed water in the humidification water tank is clean, the humidification water tank can be directly fully stored for being used as humidification water in the subsequent humidification. If the condensed water in the humidifying water tank is not clean, the condensed water in the humidifying water tank cannot be used as humidifying water in the subsequent humidifying process, and the evaporator needs to be self-cleaned and then the condensed water is collected again to the water tank.
Therefore, whether the self-cleaning function of the evaporator needs to be started or not can be judged according to the water quality condition, if the water quality condition is poor, the fact that the condensed water in the humidifying water tank is not clean is indicated, and the self-cleaning function of the evaporator is started is determined.
It should be noted that, in order to achieve a better self-cleaning effect of the evaporator, the dust covering condition of the fins of the evaporator can be detected, and then the air conditioner is controlled to perform self-cleaning of the evaporator according to the detected dust covering condition.
In this embodiment, the fins are members on the evaporator of the air conditioner, and the fins are metal sheets with strong heat conductivity are added on the surface of the heat exchange device which needs heat transfer, so that the heat exchange surface area of the heat exchange device is increased. Therefore, the fins in the present embodiment may be metal sheets having the above functions on the evaporator, which is not limited in the present embodiment.
It will be appreciated that when the air conditioner is operating in a cooling mode, the evaporator in the room exchanges heat with the air in the indoor environment via the fins to reduce the indoor temperature. In the heat exchange process, condensed water is generated on the fins, if the fins are clean, the generated condensed water is clean, and if the fins are dirty, the generated condensed water is dirty. Therefore, in order to make the condensed water collected to the humidifying water tank for humidification relatively clean, it is possible to detect the dust coverage of the fins of the evaporator and determine an appropriate cleaning measure for self-cleaning the evaporator according to the dust coverage.
It should be noted that, a detection signal may be emitted to the fin, and the dust coverage condition of the fin is determined by the signal intensity of the emitted signal; the air can be supplied to the fins, and the dust coverage condition of the fins can be determined through the attenuation degree of the air; the dust coverage of the fins may be determined by the two methods, and the final dust coverage may be determined by combining the dust coverage obtained by the two methods, which is not limited in this embodiment.
It should be noted that, the cleaning measures of the self-cleaning of the evaporator in this embodiment may include, but are not limited to, two modes of drainage cleaning and water washing cleaning, and at least one of the two modes may be selected to perform the self-cleaning of the evaporator. For example, the self-cleaning of the evaporator may be performed by a drain cleaning method, the self-cleaning of the evaporator may be performed by a water washing cleaning method, or the self-cleaning of the evaporator may be performed by a combination of a drain cleaning method and a water washing cleaning method, which is not limited in this embodiment.
It will be appreciated that if the drainage cleaning mode is adopted, the condensed water in the humidification water tank can be collected and drained for many times, and as the condensed water is generated and passes through the evaporator, the condensed water can carry dust on the fins of the evaporator, namely, dirty condensed water is collected, then the dirty condensed water is drained, and the clean condensed water is collected later. If a water washing cleaning mode is adopted, the evaporator can be washed by the water washing function of the air conditioner, so that dust on the fins is removed, and clean condensed water is collected later.
And S40, re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is completed.
It can be understood that the condensed water is collected again to the humidifying water tank after cleaning, so that the condensed water in the humidifying water tank is clean, and the subsequent clean condensed water in the humidifying water tank is humidified, so that the generation of peculiar smell can be avoided, and the health of a user can not be influenced.
It should be understood that, when the air conditioner is in operation, it is also possible to detect whether the water in the humidification water tank is full, if the water in the humidification water tank is not full, then the condensed water in the air conditioner is continuously collected into the humidification water tank, and if the water in the humidification water tank is full, then the condensed water collected by the water receiving tray is directly discharged, which is not limited in this embodiment.
It should be understood that if the humidification start instruction input by the user is received, the humidification can be performed through the condensed water in the humidification water tank, and the condensed water collected and stored in the humidification water tank in the collection mode is cleaner, so that the humidification can be performed through the clean condensed water, the trouble of adding water can be avoided, the problem that the user worries about dirtying the condensed water is solved, and the humidification device is beneficial to the health of the user.
When a humidification start instruction is received, the water quantity in the humidification water tank can be detected, if the water quantity is larger than or equal to a preset water quantity threshold value, the humidification can be carried out through condensed water in the humidification water tank, and if the water quantity is smaller than the preset water quantity threshold value, the humidification treatment is suspended, and water collection is carried out first. In a specific implementation, the residual water quantity in the humidifying water tank can be detected in real time in the humidifying process so as to dynamically regulate and control the humidifying treatment.
In the embodiment, when the air conditioner operates, collecting condensed water of the air conditioner to a humidifying water tank; detecting the water quality condition of condensed water in the humidifying water tank; according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator; and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished. Therefore, the air conditioner can be controlled to automatically clean the evaporator according to the water quality condition, and the condensed water is collected again to the humidifying water tank after the cleaning is finished, so that the condensed water in the humidifying water tank is clean, the clean condensed water in the humidifying water tank is used as humidifying water, peculiar smell can be avoided during humidification, and the health of a user can not be influenced.
In an embodiment, as shown in fig. 4, a second embodiment of a method for collecting humidification water for an air conditioner according to the present invention is provided based on the first embodiment, and the step S30 includes:
step S301, determining to start the self-cleaning function of the evaporator according to the water quality condition.
It should be appreciated that whether the condensed water in the humidification water tank is clean or not can be judged according to the water quality condition, if the water quality condition is poor, the condensed water in the humidification water tank is not clean, and the self-cleaning function of the evaporator is determined to be required to be started.
Step S302, detecting dust coverage of fins of the evaporator.
It should be noted that, the dust covering condition of the fins of the evaporator of the air conditioner may be detected by the reflection of a signal or the attenuation of wind, or may be detected by a combination of both, which is not limited in this embodiment.
It should be understood that if the dust coverage of the fins is detected by reflection of a signal, the detection signal may be reflected toward the fins of the air conditioner, the detection signal may be reflected after reaching the surface of the fins, and the signal intensity of the reflected signal emitted from the fins may be detected, thereby determining the dust coverage of the fins according to the signal intensity. The signal in this embodiment may include, but is not limited to, an optical signal, that is, the detection signal may be detection light, which is not limited in this embodiment.
In a specific implementation, corresponding dust coverage conditions may be set for signal intensities of different emission signals in advance, for example, if there is less dust on the fins, the signal intensity of the reflection signal reflected by the fins is greater, and if there is more dust on the fins, the signal intensity of the reflection signal reflected by the fins is smaller.
It should be understood that if the dust coverage of the fins is detected by the attenuation of the wind, it is possible to supply air to the fins of the air conditioner, detect the inflow wind speed and the outflow wind speed corresponding to the fins, and then determine the attenuation degree of the wind, thereby determining the dust coverage of the fins according to the attenuation degree of the wind.
In a specific implementation, the corresponding dust coverage conditions may be set for different attenuation degrees of the wind in advance, for example, if the dust on the fins is less, the attenuation degree of the wind passing through the fins is smaller, and if the dust on the fins is more, the attenuation degree of the wind passing through the fins is larger, which is not limited in this embodiment.
It should be understood that if the dust coverage condition of the fins is detected by combining the reflection of the signal and the attenuation of the wind, the detection signal may be reflected to the fins of the air conditioner, the detection signal may be reflected after reaching the surfaces of the fins, the signal intensity of the reflected signal emitted by the fins may be detected, and then the first dust coverage condition of the fins is determined according to the signal intensity, and then the fins of the air conditioner are blown in, the inflow wind speed and the outflow wind speed corresponding to the fins are detected, and then the attenuation degree of the wind is determined, and then the second dust coverage condition of the fins is determined according to the attenuation degree of the wind, and then the dust coverage condition of the fins is determined by combining the first dust coverage condition and the second dust coverage condition, so as to improve the accuracy of the dust coverage detection.
Step S303, controlling the air conditioner to perform self-cleaning of the evaporator according to the detected dust coverage condition.
It should be noted that different dust grades may be classified according to the dust coverage situation on the fins, for example, if the fins are clean and dust is less, the situation may be classified into dust grade 0, if the fins are more dust, the situation may be classified into dust grade 1, if the fins are more dust, the situation may be classified into dust grade 2, that is, the corresponding dust grade may be classified based on the dust situation on the fins, and the specific classification manner and number of the dust grades are not limited in this embodiment.
It will be appreciated that after the dust coverage of the fins has been detected in the manner described above, the current dust level to which the fins correspond may be determined from the detected dust coverage.
The self-cleaning of the evaporator may be performed by drain cleaning and water washing cleaning, or may be performed by a combination of both, and the present embodiment is not limited thereto.
It should be understood that if the evaporator self-cleaning is performed by the drain cleaning method, condensed water in the humidification water tank may be drained and the air conditioner may be controlled to operate in the cooling mode for a preset period of time according to a preset parameter. The preset parameter may be a parameter of entering the refrigeration mode at this time, and the preset duration may be set according to the dust level, which is not limited in this embodiment. In the process that the air conditioner operates in a refrigerating mode, condensed water can be continuously collected to the humidifying water tank, after the humidifying water tank is full, water in the humidifying water tank is completely discharged, then the condensed water is continuously collected to the humidifying water tank, then the water in the humidifying water tank is completely discharged, and the evaporator is self-cleaned in a mode of collecting the condensed water and discharging water. For example, at dust level 1, condensed water in the water tank is completely discharged for 1 time and then collected again; at dust level 2, the condensed water in the water tank is totally removed 2 times and then collected again, which is not limited in this embodiment.
It will be appreciated that if the self-cleaning of the evaporator is performed by means of a water washing cleaning, the condensed water in the humidification water tank may be discharged and the evaporator may be washed a preset number of times. The preset times can be set according to dust grades, and condensed water of the humidifying water tank, condensed water generated in the running process of the air conditioner and/or water input by external equipment can be utilized in the cleaning process. For example, at dust level 1, the water washing function is turned on 1 time and then the dust is collected again; at dust level 2, the water washing function is turned on 2 times and then collected again, which is not limited in this embodiment.
It will be appreciated that if the self-cleaning of the evaporator is performed by a drain cleaning mode in combination with a water wash cleaning mode, a first preset level and a second preset level may be set, and the first preset level is greater than the second preset level. If the dust level is greater than or equal to the first preset level, performing self-cleaning of the evaporator in a drainage cleaning mode; and if the dust level is greater than the second preset level and less than the first preset level, performing self-cleaning on the evaporator by a water washing cleaning mode. The steps of the drainage cleaning method and the water washing cleaning method in this case may be the same as those described above, and will not be described here.
In this embodiment, after determining that the self-cleaning function of the evaporator needs to be started according to the water quality condition, the dust coverage condition of the fins of the evaporator can be detected, and an appropriate cleaning strategy is determined according to the detected dust coverage condition to perform self-cleaning of the evaporator, so that dust on the fins of the evaporator is reduced, the generated condensed water is cleaner, and the condensed water collected to the humidifying water tank is further cleaner.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a collection program of the humidifying water of the air conditioner, and the collection program of the humidifying water of the air conditioner realizes the steps of the collection method of the humidifying water of the air conditioner when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
In addition, referring to fig. 5, an embodiment of the present invention further provides a device for collecting humidification water of an air conditioner, where the device for collecting humidification water of an air conditioner includes:
and the condensed water collecting module 10 is used for collecting condensed water of the air conditioner to the humidifying water tank when the air conditioner is in operation.
It should be noted that, the air conditioner in this embodiment may include, but is not limited to, a cabinet air conditioner, a hanging air conditioner, a central air conditioner, and an air conditioner of various types or models, which is not limited in this embodiment.
It should be understood that the air conditioner in this embodiment may include, but is not limited to, a water receiving tray and a humidifying water tank, which may be connected by a pipe. When the air conditioner is in an operating state, condensed water generated by the air conditioner can be collected through the water receiving disc, and the condensed water collected by the water receiving disc is conveyed to the humidifying water tank through the pipeline. Among them, the humidification water tank may be a water tank for storing condensed water for subsequent humidification, to which the present embodiment is not limited.
It can be understood that when the air conditioner is operated in a cooling mode, the indoor heat exchanger is an evaporator, and condensed water is generated at the indoor evaporator; when the air conditioner operates in a heating mode, the outdoor heat exchanger is an evaporator, and condensed water is generated at the outdoor evaporator. Therefore, it is theoretically possible to collect condensed water generated at the evaporator inside the room in the case of the cooling mode, and the condensed water generated at the evaporator outside the room in the case of the heating mode, which is not limited in this embodiment.
It will be appreciated that since the outdoor heat exchanger is installed outdoors, it is generally less clean and therefore more dust is present on the outdoor heat exchanger. And because the indoor environment is humidified, the humidifying water tank is arranged indoors conveniently, and if the condensed water at the outdoor heat exchanger is collected to the humidifying water tank, a longer pipeline is required to be arranged to connect the humidifying water tank and the water receiving disc of the outdoor heat exchanger. Therefore, in order to reduce the cost, improve the collection efficiency of the condensed water, and ensure the cleanliness of the condensed water, in the present embodiment, it is preferable to collect the condensed water at the evaporator in the indoor of the air conditioner to the humidifying water tank in the cooling mode.
In the specific implementation, when the air conditioner operates in a refrigeration mode, condensed water generated at the evaporator can be collected through a water receiving disc of the indoor unit, and the condensed water is transmitted to the humidifying water tank for storage through a pipeline. And, can also set up the valve in the delivery port department of above-mentioned pipeline or water collector, when needing to transmit the comdenstion water to the humidification water tank, open the valve, when not needing to transmit the comdenstion water to the humidification water tank, close the valve, then directly discharge the comdenstion water that gathers in the water collector, this embodiment is not restricted. As shown in fig. 3, fig. 3 is a schematic flow chart of collecting condensed water in a refrigeration mode, when an air conditioner is started and operates in the refrigeration mode, the condensed water is collected into a humidification water tank, the water quality condition in the humidification water tank is detected, whether the condensed water in the humidification water tank is clean or not is determined according to the water quality condition, if yes, the water tank is fully reserved, if not, the water tank is emptied according to the water quality condition, and cleaning measures are executed according to the dust covering condition of fins of an evaporator, after the self-cleaning of the evaporator is completed, the condensed water is collected again into the humidification water tank, and after the water is fully reserved, the reserved condensed water stored in the humidification water tank can be clean by the collection mode, so that the water is more beneficial to the health of users, and the use experience of the users is better.
And the water quality detection module 20 is used for detecting the water quality condition of condensed water in the humidifying water tank.
It will be appreciated that the water quality detection may be performed under the condition that the humidification water tank is full, or periodically, or in real time, and this embodiment is not limited thereto.
It should be noted that the water quality detection method in this embodiment may include, but is not limited to, sensor detection and filter detection, and in this embodiment, sensor detection is taken as an example. The sensor may be a water quality sensor, and may be disposed inside the humidification water tank or in the water inlet pipe, which is not limited in this embodiment, and the bottom disposed inside the humidification water tank is described as an example in this embodiment.
And the self-cleaning module 30 is used for controlling the air conditioner to perform self-cleaning of the evaporator according to the water quality condition.
It should be understood that whether the condensed water in the humidification water tank is clean or not can be judged according to the detected water quality condition, and if the condensed water in the humidification water tank is clean, the humidification water tank can be directly fully stored for being used as humidification water in the subsequent humidification. If the condensed water in the humidifying water tank is not clean, the condensed water in the humidifying water tank cannot be used as humidifying water in the subsequent humidifying process, and the evaporator needs to be self-cleaned and then the condensed water is collected again to the water tank.
Therefore, whether the self-cleaning function of the evaporator needs to be started or not can be judged according to the water quality condition, if the water quality condition is poor, the fact that the condensed water in the humidifying water tank is not clean is indicated, and the self-cleaning function of the evaporator is started is determined.
It should be noted that, in order to achieve a better self-cleaning effect of the evaporator, the dust covering condition of the fins of the evaporator can be detected, and then the air conditioner is controlled to perform self-cleaning of the evaporator according to the detected dust covering condition.
In this embodiment, the fins are members on the evaporator of the air conditioner, and the fins are metal sheets with strong heat conductivity are added on the surface of the heat exchange device which needs heat transfer, so that the heat exchange surface area of the heat exchange device is increased. Therefore, the fins in the present embodiment may be metal sheets having the above functions on the evaporator, which is not limited in the present embodiment.
It will be appreciated that when the air conditioner is operating in a cooling mode, the evaporator in the room exchanges heat with the air in the indoor environment via the fins to reduce the indoor temperature. In the heat exchange process, condensed water is generated on the fins, if the fins are clean, the generated condensed water is clean, and if the fins are dirty, the generated condensed water is dirty. Therefore, in order to make the condensed water collected to the humidifying water tank for humidification relatively clean, it is possible to detect the dust coverage of the fins of the evaporator and determine an appropriate cleaning measure for self-cleaning the evaporator according to the dust coverage.
It should be noted that, a detection signal may be emitted to the fin, and the dust coverage condition of the fin is determined by the signal intensity of the emitted signal; the air can be supplied to the fins, and the dust coverage condition of the fins can be determined through the attenuation degree of the air; the dust coverage of the fins may be determined by the two methods, and the final dust coverage may be determined by combining the dust coverage obtained by the two methods, which is not limited in this embodiment.
It should be noted that, the cleaning measures of the self-cleaning of the evaporator in this embodiment may include, but are not limited to, two modes of drainage cleaning and water washing cleaning, and at least one of the two modes may be selected to perform the self-cleaning of the evaporator. For example, the self-cleaning of the evaporator may be performed by a drain cleaning method, the self-cleaning of the evaporator may be performed by a water washing cleaning method, or the self-cleaning of the evaporator may be performed by a combination of a drain cleaning method and a water washing cleaning method, which is not limited in this embodiment.
It will be appreciated that if the drainage cleaning mode is adopted, the condensed water in the humidification water tank can be collected and drained for many times, and as the condensed water is generated and passes through the evaporator, the condensed water can carry dust on the fins of the evaporator, namely, dirty condensed water is collected, then the dirty condensed water is drained, and the clean condensed water is collected later. If a water washing cleaning mode is adopted, the evaporator can be washed by the water washing function of the air conditioner, so that dust on the fins is removed, and clean condensed water is collected later.
The condensed water collecting module 10 is further configured to re-collect condensed water of the air conditioner to the humidification water tank after the self-cleaning of the evaporator is completed.
It can be understood that the condensed water is collected again to the humidifying water tank after cleaning, so that the condensed water in the humidifying water tank is clean, and the subsequent clean condensed water in the humidifying water tank is humidified, so that the generation of peculiar smell can be avoided, and the health of a user can not be influenced.
It should be understood that, when the air conditioner is in operation, it is also possible to detect whether the water in the humidification water tank is full, if the water in the humidification water tank is not full, then the condensed water in the air conditioner is continuously collected into the humidification water tank, and if the water in the humidification water tank is full, then the condensed water collected by the water receiving tray is directly discharged, which is not limited in this embodiment.
It should be understood that if the humidification start instruction input by the user is received, the humidification can be performed through the condensed water in the humidification water tank, and the condensed water collected and stored in the humidification water tank in the collection mode is cleaner, so that the humidification can be performed through the clean condensed water, the trouble of adding water can be avoided, the problem that the user worries about dirtying the condensed water is solved, and the humidification device is beneficial to the health of the user.
When a humidification start instruction is received, the water quantity in the humidification water tank can be detected, if the water quantity is larger than or equal to a preset water quantity threshold value, the humidification can be carried out through condensed water in the humidification water tank, and if the water quantity is smaller than the preset water quantity threshold value, the humidification treatment is suspended, and water collection is carried out first. In a specific implementation, the residual water quantity in the humidifying water tank can be detected in real time in the humidifying process so as to dynamically regulate and control the humidifying treatment.
In the embodiment, when the air conditioner operates, collecting condensed water of the air conditioner to a humidifying water tank; detecting the water quality condition of condensed water in the humidifying water tank; according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator; and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished. Therefore, the air conditioner can be controlled to automatically clean the evaporator according to the water quality condition, and the condensed water is collected again to the humidifying water tank after the cleaning is finished, so that the condensed water in the humidifying water tank is clean, the clean condensed water in the humidifying water tank is used as humidifying water, peculiar smell can be avoided during humidification, and the health of a user can not be influenced.
Other embodiments or specific implementation methods of the collecting device for humidification water of an air conditioner according to the present invention may refer to the above method embodiments, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in an estimator readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a smart device (which may be a mobile phone, estimator, air conditioner, or network air conditioner, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. A method for collecting humidification water for an air conditioner, the method comprising:
when the air conditioner operates, collecting condensed water of the air conditioner to a humidifying water tank;
detecting the water quality condition of condensed water in the humidifying water tank;
according to the water quality condition, controlling the air conditioner to perform self-cleaning of the evaporator; and
and re-collecting condensed water of the air conditioner to the humidifying water tank after the self-cleaning of the evaporator is finished.
2. The method for collecting humidification water for an air conditioner according to claim 1, wherein said controlling said air conditioner to perform self-cleaning of an evaporator comprises:
detecting dust coverage of fins of the evaporator; and
and controlling the air conditioner to perform self-cleaning of the evaporator according to the detected dust coverage condition.
3. The method for collecting humidification water for an air conditioner according to claim 2, wherein the controlling the air conditioner to perform the self-cleaning of the evaporator according to the detected dust coverage condition comprises:
determining a dust level based on the detected dust coverage;
when the dust level is greater than or equal to a first preset level, discharging condensed water of the humidifying water tank, and controlling an air conditioner to operate in a refrigeration mode for a preset time according to preset parameters, wherein the preset time is set according to the dust level; and
when the dust level is greater than a second preset level and less than a first preset level, discharging condensed water of the humidifying water tank, and cleaning the evaporator for preset times, wherein the preset times are set according to the dust level; wherein the condensed water of the humidification water tank, the condensed water generated during the operation of the air conditioner and/or the water input from the external device are utilized.
4. The method for collecting humidification water of an air conditioner according to claim 2, wherein the detecting the dust coverage of the fins of the evaporator comprises:
transmitting a detection signal to a fin of the air conditioner, and detecting the signal intensity of a reflected signal reflected by the fin; determining dust coverage of the fins according to the signal intensity; or,
supplying air to the fins of the air conditioner, and detecting inflow air speed and outflow air speed corresponding to the fins; determining a degree of attenuation of the wind based on the inflow wind speed and the outflow wind speed; and determining dust coverage of the fins according to the attenuation degree.
5. The method for collecting humidification water for an air conditioner according to claim 1, wherein said controlling said air conditioner to perform self-cleaning of an evaporator comprises:
discharging condensed water in the humidifying water tank, and controlling an operation refrigeration mode of the air conditioner for a preset time period according to preset parameters, wherein the preset time period is set according to dust grades; or,
discharging condensed water of the humidifying water tank, and cleaning the evaporator for preset times, wherein the preset times are set according to dust grades; wherein the condensed water of the humidification water tank, the condensed water generated during the operation of the air conditioner and/or the water input from the external device are utilized.
6. The method for collecting humidification water for an air conditioner according to claim 1, wherein the collecting method further comprises:
and when the air conditioner is operated and the water of the humidifying water tank is determined to be not full, collecting condensed water of the air conditioner to the humidifying water tank.
7. The collecting method of humidification water for an air conditioner according to any one of claims 1 to 6, wherein the collecting method further comprises:
and when a humidification start instruction is received, humidifying is carried out through condensed water in the humidification water tank.
8. A collecting device for humidifying water of an air conditioner, characterized by comprising:
the condensed water collecting module is used for collecting condensed water of the air conditioner to the humidifying water tank when the air conditioner operates;
the water quality detection module is used for detecting the water quality condition of condensed water in the humidifying water tank;
the self-cleaning module is used for controlling the air conditioner to perform self-cleaning of the evaporator according to the water quality condition; and
the condensed water collecting module is further used for collecting condensed water of the air conditioner to the humidifying water tank again after the evaporator is self-cleaned.
9. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor, and a collection program of humidification water for an air conditioner stored on the memory and operable on the processor, which when executed by the processor, implements the collection method of humidification water for an air conditioner according to any one of claims 1 to 7.
10. A storage medium, wherein a collection program of humidification water for an air conditioner is stored on the storage medium, and the collection program of humidification water for an air conditioner, when executed by a processor, implements the collection method of humidification water for an air conditioner according to any one of claims 1 to 7.
CN202210654626.9A 2022-06-10 2022-06-10 Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium Pending CN117249522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210654626.9A CN117249522A (en) 2022-06-10 2022-06-10 Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210654626.9A CN117249522A (en) 2022-06-10 2022-06-10 Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium

Publications (1)

Publication Number Publication Date
CN117249522A true CN117249522A (en) 2023-12-19

Family

ID=89131845

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210654626.9A Pending CN117249522A (en) 2022-06-10 2022-06-10 Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium

Country Status (1)

Country Link
CN (1) CN117249522A (en)

Similar Documents

Publication Publication Date Title
CN111520815B (en) Air conditioner and control method thereof
CN105783199B (en) The clean method of air conditioner intelligent self-cleaning
CN109916002B (en) Self-cleaning humidification control method for air conditioner
CN109916034B (en) Self-cleaning control method for air conditioner
CN105910228B (en) Air conditioner automatically cleaning operation method
CN109695945A (en) Air-conditioning heat exchanger automatically cleaning control method, system and air-conditioning
CN109916037B (en) Self-cleaning control method for air conditioner
CN108534312A (en) A kind of cleaning method of air conditioner indoor unit, air-conditioning and heat exchanger for air-conditioner indoor machine
CN111156648B (en) Cleaning control method of air conditioner and air conditioner
CN111486561A (en) Air conditioner and control method and device thereof
CN104566836A (en) Air conditioner and method and device for automatically controlling air conditioner
CN106595156A (en) Air conditioner evaporator cleaning control method and device, and air conditioner
CN111780349A (en) Self-cleaning method and device for air conditioner heat exchanger and air conditioner
CN109883002A (en) Air conditioner and its cleaning control method, device and computer readable storage medium
CN111397120B (en) Air conditioner self-cleaning control method and device, storage medium and air conditioner
CN113280474B (en) Self-cleaning control method and device of multi-split air conditioner and storage medium
CN111288609A (en) Air conditioner filter screen filth blockage detection method and device, air conditioner and storage medium
CN111706954B (en) Air conditioner and self-cleaning control method thereof
CN113108421A (en) Air conditioner shutdown control method and device, electronic equipment and storage medium
CN109916036B (en) Self-cleaning control method for air conditioner
CN117249522A (en) Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium
CN117249523A (en) Method and device for collecting humidifying water of air conditioner, air conditioner and storage medium
CN112303850A (en) Control method and device of air conditioner
CN109916035A (en) Air conditioner automatically cleaning control method
CN110873392A (en) Air conditioner and self-cleaning control method thereof

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