CN114484727A - Condenser dust removal method and device and air conditioner - Google Patents

Condenser dust removal method and device and air conditioner Download PDF

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Publication number
CN114484727A
CN114484727A CN202210077743.3A CN202210077743A CN114484727A CN 114484727 A CN114484727 A CN 114484727A CN 202210077743 A CN202210077743 A CN 202210077743A CN 114484727 A CN114484727 A CN 114484727A
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condenser
preset
voltage
dust removal
air conditioner
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CN114484727B (en
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蒋润泽
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • 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
    • F28G7/00—Cleaning by vibration or pressure waves

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

Abstract

The invention provides a dust removal method and device for a condenser and an air conditioner; wherein, the method comprises the following steps: when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, acquiring a first acquisition voltage corresponding to the wind speed acquisition device; the first collected voltage is used for representing a voltage value generated by rotation of the wind speed collector under the action of the wind speed of the outdoor fan; judging whether the first acquisition voltage is smaller than a preset first voltage threshold value or not; if so, controlling the air conditioner to enter a dust removal mode; in the dust removal mode, triggering a resonator to start so that the resonator drives a fin of a condenser to vibrate according to a first preset time length; simultaneously, the outdoor fan of control is according to the second and predetermine long reverse rotation operation to remove dust to the condenser, thereby drive the fin of condenser through the resonator and resonate, remove dust to the condenser, thereby reduced the dust of condenser and piled up, guaranteed the heat transfer effect of condenser, make the air conditioner performance best ability, improved user's comfort level.

Description

Condenser dust removal method and device and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a dust removal method and device for a condenser and an air conditioner.
Background
In practical application, as the outdoor unit of the air conditioner is arranged outdoors, dust, small impurities and the like in the environment can fall onto a condenser of the outdoor unit, and if the outdoor unit is not cleaned for a long time, the condenser is blocked; when the outdoor fan works normally, the air flows from back to front, and the condenser is positioned on the back of the outdoor fan, so that dust carried in the air flow flows forwards through the condenser, more dust is accumulated on the condenser, the heat exchange efficiency of the condenser is influenced, the refrigerating or heating effect of the air conditioner is reduced, and the comfort level of a user is reduced; meanwhile, the energy consumption of the air conditioner is increased, and the service life of the air conditioner is shortened, so that the dust removal device has important significance in removing dust from the condenser.
In the prior art, the condenser is mainly cleaned manually, however, the method is time-consuming and labor-consuming, and the outdoor unit is installed outdoors, so that the dust removal of cleaning personnel is dangerous to some extent, and therefore, how to automatically remove the dust from the condenser is an urgent problem to be solved.
Disclosure of Invention
In view of the above, the present invention provides a condenser dust removal method, an apparatus and an air conditioner to alleviate the above problems, and the resonator drives the fins of the condenser to resonate to automatically remove dust from the condenser, so as to reduce dust accumulation in the condenser, ensure the heat exchange effect of the condenser, enable the air conditioner to perform the best performance, and improve the comfort level of the user.
In a first aspect, an embodiment of the present invention provides a dust removal method for a condenser, where an outdoor unit of an air conditioner includes a condenser and an outdoor fan; the condenser is provided with at least one resonator, and a wind speed collector is arranged between the condenser and the outdoor fan; the method comprises the following steps: when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, acquiring a first acquisition voltage corresponding to the wind speed acquisition device; the first collected voltage is used for representing a voltage value generated by rotation of the wind speed collector under the action of the wind speed of the outdoor fan; judging whether the first acquisition voltage is smaller than a preset first voltage threshold value or not; if yes, controlling the air conditioner to enter a dust removal mode; in the dust removal mode, triggering a resonator to start so that the resonator drives a fin of a condenser to vibrate according to a first preset time length; meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser; and the second preset time length is not less than the first preset time length.
According to the condenser dust removal method, the resonator drives the fins of the condenser to resonate, so that the condenser is automatically removed dust, dust accumulation of the condenser is reduced, the heat exchange effect of the condenser is ensured, the air conditioner can exert the best performance, and the comfort level of a user is improved; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
Preferably, the method further comprises: when the reverse operation time of the outdoor fan reaches a second preset time, controlling the outdoor fan to normally operate; when the outdoor fan reaches the maximum rotating speed, acquiring a second acquisition voltage corresponding to the wind speed acquisition device; judging whether the second acquisition voltage is not less than a preset second voltage threshold value or not; the preset second voltage threshold is greater than the preset first voltage threshold; if so, controlling the air conditioner to exit the dust removal mode.
According to the arrangement, whether dust removal is completed or not is judged through the second collecting voltage, so that the dust removal effect of the condenser is ensured.
Preferably, the method further comprises: and if the second collecting voltage is smaller than a preset second voltage threshold value, repeatedly carrying out dust removal on the condenser according to the dust removal mode.
Preferably, the air conditioner further comprises an alarm module, and the method further comprises: when the dust removal times reach preset times, acquiring a third acquisition voltage corresponding to the wind speed acquisition device; judging whether the third acquisition voltage is smaller than a preset second voltage threshold value and not smaller than a preset first voltage threshold value; if yes, generating first alarm information; and sending the first alarm information to an alarm module so that the alarm module carries out alarm prompt according to the first alarm information to prompt a user to carry out manual dust removal on the condenser.
Through first alarm information, the suggestion user removes dust manually to on the resonator carries out the basis that removes dust automatically to the condenser, combine artifical the dust removal, the dust that has further reduced the condenser is piled up, has improved the heat transfer effect of condenser, makes the air conditioner performance best ability, and then has improved user's comfort level.
Preferably, the method further comprises: if the third collected voltage is smaller than a preset first voltage threshold, controlling the air conditioner to stop and generating second alarm information; and sending the second alarm information to the alarm module so that the alarm module gives an alarm prompt according to the second alarm information to prompt a user to check whether the condenser is blocked or not.
Through second alarm information, whether the user of being convenient for in time masters the condenser and takes place to block up to the user of being convenient for in time handles the condenser when taking place to block up, thereby has guaranteed the heat transfer effect of condenser, makes the air conditioner performance best.
Preferably, the method further comprises: when the air conditioner is started for the first time and the outdoor fan reaches the maximum rotating speed, acquiring a reference acquisition voltage corresponding to the wind speed collector; and determining a preset first voltage threshold and a preset second voltage threshold according to the reference acquisition voltage.
Preferably, the step of determining the preset first voltage threshold and the preset second voltage threshold according to the reference collected voltage includes: calculating a preset first voltage threshold and a preset second voltage threshold according to the following formula: v1 ═ 0.3V0, V2 ═ 0.8V 0; wherein V1 represents the preset first voltage threshold, V2 represents the preset second voltage threshold, and V0 represents the reference pickup voltage.
In a second aspect, an embodiment of the present invention further provides a dust removing device for a condenser, where an outdoor unit of an air conditioner includes a condenser and an outdoor fan; the condenser is provided with at least one resonator, and a wind speed collector is arranged between the condenser and the outdoor fan; the device includes: the acquisition module is used for acquiring a first acquisition voltage corresponding to the wind speed acquisition device when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed; the first collected voltage is used for representing a voltage value generated by rotation of the wind speed collector under the action of the wind speed of the outdoor fan; the judging module is used for judging whether the first collecting voltage is smaller than a preset first voltage threshold value or not; the mode control module is used for controlling the air conditioner to enter a dust removal mode if the air conditioner is in the dust removal mode; the dust removal control module is used for triggering the resonator to start in a dust removal mode so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser; and the second preset time length is not less than the first preset time length.
In a third aspect, an embodiment of the present invention further provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method in the first aspect when executing the computer program.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the method in the first aspect.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a dust removal method and device for a condenser and an air conditioner, wherein when the air conditioner is started to operate and an outdoor fan reaches the maximum rotating speed, a first collecting voltage corresponding to a wind speed collector is obtained; when the first collecting voltage is smaller than a preset first voltage threshold, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, the outdoor fan is controlled to reversely rotate according to a second preset time length so as to remove dust from the condenser, and in the dust removal mode, the resonator drives the fins of the condenser to resonate so as to automatically remove dust from the condenser, thereby reducing dust accumulation of the condenser, ensuring the heat exchange effect of the condenser, enabling the air conditioner to exert the best performance and improving the comfort level of a user; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for removing dust from a condenser according to an embodiment of the present invention;
FIG. 3 is a flow chart of another method for removing dust from a condenser according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a dust removing device of a condenser according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
To facilitate understanding of the present embodiment, a method for removing dust from a condenser according to an embodiment of the present invention will be described in detail. In practical applications, the air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes, but is not limited to, a controller, and the outdoor unit includes, but is not limited to, a compressor, an outdoor fan, a condenser, an oil separator, etc., wherein the condenser is also called an outdoor heat exchanger, as shown in fig. 1, and the outdoor unit of the air conditioner includes a condenser 11 and an outdoor fan (not shown); here, at least one resonator 12 is provided on the condenser 11, and three resonators 12 are taken as an example here, and the number of resonators 12 and the installation position of each resonator 12 may be set according to actual conditions.
In addition, a wind speed collector 13 is provided between the condenser 11 and the outdoor fan; preferably, the wind speed collector 13 may be a fan or the like; specifically, when the outdoor fan rotates, wind driven by rotation passes through the wind speed collector 13, and the blades of the wind speed collector 13 rotate under the wind speed action of the outdoor fan and generate a certain voltage value, so that the collected wind speed of the outdoor fan can be directly converted into a corresponding voltage value through the wind speed collector 13, the condenser is subjected to dust removal judgment according to the voltage value, and in the dust removal process, the resonator 12 drives the fins of the condenser 11 to resonate, so that the condenser 11 is automatically subjected to dust removal, dust accumulation of the condenser 11 is reduced, the heat exchange effect of the condenser 11 is ensured, the air conditioner can exert the best performance, and the comfort level of a user is improved; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
Based on the air conditioner, an embodiment of the present invention provides a dust removal method for a condenser, where an execution main body is a controller, and as shown in fig. 2, the method includes the following steps:
step S202, when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, acquiring a first acquisition voltage corresponding to the wind speed acquisition device;
the first collected voltage is used for representing a voltage value generated by rotation of the wind speed collector under the action of the wind speed of the outdoor fan; specifically, after the air conditioner is started and operated every time, when the outdoor fan reaches the maximum rotating speed, the first collecting voltage corresponding to the air speed collector at the moment is obtained, whether the condenser is subjected to dust removal is judged according to the first collecting voltage, and compared with a conventional method for judging whether the condenser is subjected to dust removal according to the temperature of the condenser, in practical application, the temperature of the condenser can affect the pressure, and the pressure reacts on the temperature, so that the dust removal judgment precision is reduced, therefore, the embodiment of the invention judges whether the condenser is subjected to dust removal or not according to the first collecting voltage corresponding to the air speed collector, and the dust removal judgment precision and timeliness are improved.
It should be noted that, if the rotation speed of the outdoor fan is set to be low rotation speed, medium rotation speed and high rotation speed, the maximum rotation speed is high rotation speed; if the rotating speed of the outdoor fan is set to be the rotating speed of different proportions, the maximum rotating speed is the rotating speed of the maximum proportion, and therefore the maximum rotating speed is determined according to the actual rotating speed of the outdoor fan.
Step S204, judging whether the first acquisition voltage is smaller than a preset first voltage threshold value;
specifically, whether dust removal is carried out on the condenser is judged according to a first collecting voltage corresponding to the wind speed collector and a preset first voltage threshold; the preset first voltage threshold may be determined according to the reference acquisition voltage.
Further, the method also includes: when the air conditioner is started for the first time and the outdoor fan reaches the maximum rotating speed, acquiring a reference acquisition voltage corresponding to the wind speed collector; determining a preset first voltage threshold according to the reference acquisition voltage; specifically, when the air conditioner is first turned on for use after being installed, at this time, the condenser has no dust accumulation, and when the outdoor fan reaches the maximum rotation speed at this time, the voltage value corresponding to the wind speed collector serves as a reference collected voltage, and the preset first voltage threshold value is determined according to the reference collected voltage, for example, the reference collected voltage V0 is 3V, and at this time, the preset first voltage threshold value V1 is 0.3V0, that is, the preset first voltage threshold value is 0.9V.
Step S206, if yes, controlling the air conditioner to enter a dust removal mode;
specifically, when the first collecting voltage is smaller than a preset first voltage threshold, the dust accumulation of the condenser is more, the condenser needs to be dedusted, and the air conditioner is controlled to enter a dedusting mode; when the first acquisition voltage is not less than a preset first voltage threshold, the condenser does not need to remove dust; at this time, the air conditioner is controlled to continue normal operation, such as operation according to a preset heating mode or a preset cooling mode.
Step S208, in the dust removal mode, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; and meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser.
In the dust removal mode, the controller triggers the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time length, the fins of the condenser and the resonator reach a resonance point to resonate, at the moment, the fins of the condenser can greatly vibrate to shake dust, and therefore stubborn dust on the condenser is vibrated and loosened; meanwhile, the outdoor fan is controlled to reversely rotate according to the second preset time length, and the dust removed by vibration looseness is reversely blown out, so that automatic dust removal of the condenser is realized, and the dust removal efficiency and effect are also ensured.
It should be noted that the second preset duration is not less than the first preset duration, for example, the first preset duration is 15s, and the second preset duration is 35s, so that when the outdoor fan rotates in the reverse direction, stubborn dust loosened by vibration can be blown out in the reverse direction completely, and the dust removal effect of the condenser is improved.
According to the condenser dust removal method, when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, the first collecting voltage corresponding to the wind speed collector is obtained; when the first acquisition voltage is smaller than a preset first voltage threshold, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time period; meanwhile, the outdoor fan is controlled to reversely rotate according to a second preset time length so as to remove dust from the condenser, and in the dust removal mode, the resonator drives the fins of the condenser to resonate so as to automatically remove dust from the condenser, thereby reducing dust accumulation of the condenser, ensuring the heat exchange effect of the condenser, enabling the air conditioner to exert the best performance and improving the comfort level of a user; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
Further, the method also includes: when the reverse operation time of the outdoor fan reaches a second preset time, controlling the outdoor fan to normally operate; when the outdoor fan reaches the maximum rotating speed, acquiring a second acquisition voltage corresponding to the wind speed acquisition device; judging whether the second acquisition voltage is not less than a preset second voltage threshold value or not; the preset second voltage threshold is greater than the preset first voltage threshold; if so, controlling the air conditioner to exit the dust removal mode. Specifically, in the dust removal mode, when the reverse operation time of the outdoor fan reaches a second preset time, stopping dust removal, controlling the outdoor fan to operate in a forward rotation mode, and judging whether to control the air conditioner to exit the dust removal mode, namely when the outdoor fan reaches the maximum rotation speed, acquiring a second collection voltage corresponding to the wind speed collector; judging whether the second acquisition voltage is not less than a preset second voltage threshold value or not; if so, controlling the air conditioner to exit the dust removal mode, otherwise, if the second acquisition voltage is smaller than a preset second voltage threshold value, repeatedly removing dust for the condenser according to the dust removal mode, namely, triggering the resonator to start again so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; and meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust again for the condenser.
The electrical appliance is aged, so that the preset second voltage threshold value for exiting the dust removal mode is greater than the preset first voltage threshold value; here, the preset second voltage threshold is determined according to the reference collecting voltage, for example, the preset second voltage threshold V2 is 0.8V 0; it should be noted that the preset first voltage threshold and the preset second voltage threshold are determined according to the reference collected voltage, and it is only necessary that the preset second voltage threshold is greater than the preset first voltage threshold.
Further, the air conditioner also comprises an alarm module, and in the process of repeatedly removing dust of the condenser according to the dust removal mode, the method also comprises the following steps: when the dust removal times reach preset times, acquiring a third acquisition voltage corresponding to the wind speed acquisition device; judging whether the third acquisition voltage is smaller than a preset second voltage threshold value and not smaller than a preset first voltage threshold value; if yes, generating first alarm information; and sending the first alarm information to an alarm module so that the alarm module carries out alarm prompt according to the first alarm information to prompt a user to carry out manual dust removal on the condenser. Specifically, when the number of times of dust removal reaches the preset number of times, at this moment, the third acquisition voltage is still less than the preset second voltage threshold, and is greater than the preset first voltage threshold, then the controller generates first alarm information, and sends the first alarm information to the alarm module, so that the alarm module gives an alarm prompt according to the first alarm information, so as to prompt the user to manually remove dust from the condenser, and if the dust is stubborn, the vibration on the condenser is still not loose, the user is prompted to manually remove dust.
It should be noted that the first collected voltage, the second collected voltage, and the third collected voltage are only used for distinguishing voltage values corresponding to the wind speed collectors at different times, specifically, the first collected voltage is a voltage value corresponding to the wind speed collector before dust removal after the air conditioner is started to operate, and whether dust removal is performed on the condenser is judged according to the first collected voltage; the second collected voltage is a voltage value corresponding to the wind speed collector after each dust removal treatment, so that whether the dust removal process of the condenser exits or not is judged according to the second collected voltage; the third collecting voltage is a voltage value corresponding to the wind speed collector when the preset number of times is reached, namely, the second collecting voltage when the preset number of times is reached, so that which kind of alarm information is generated, such as the first alarm information or the second alarm information, can be judged according to the third collecting voltage.
In addition, if the third collected voltage is smaller than a preset first voltage threshold, the air conditioner is controlled to stop, and second alarm information is generated; and sending the second alarm information to an alarm module so that the alarm module carries out alarm prompt according to the second alarm information to prompt a user to check whether the condenser is blocked or not. And in the process of repeatedly carrying out dust removal on the condenser according to the dust removal mode, for the third collected voltage collected after the dust removal is finished each time, if the third collected voltage is not less than the preset second voltage threshold, quitting the dust removal on the condenser.
For ease of understanding, the following process is included, as illustrated in fig. 3:
step S302, the air conditioner is started for the first time; after the air conditioner is installed, the air conditioner is started to operate for the first time, the ventilation quantity of the condenser is in an ideal state at the moment, and dust does not exist in the condenser at the moment;
step S304, acquiring a reference acquisition voltage V; specifically, when the outdoor fan reaches the maximum rotation speed, acquiring a voltage value corresponding to the wind speed collector as a reference collection voltage, wherein the reference collection voltage is 3V as an example for explanation;
step S306, the air conditioner operates; in subsequent practical application, the air conditioner is started to operate every time and operates according to a set mode, such as a heating mode or a refrigerating mode;
step S308, when the outdoor fan reaches the maximum rotating speed, acquiring a first acquisition voltage v corresponding to the wind speed acquisition device1；
Step S310, judging v1Less than 0.3V; namely, the first collection voltage v is judged1Whether the voltage is less than the preset first voltage threshold value of 0.3V or not, if not, the step S306 is returned to, namely the air conditioner is controlled to normally operate, which indicates that the condenser does not need to be dedusted; if yes, the condenser is proved to have more dust accumulation and needs to be dedusted, then step S312 is executed; the preset first voltage threshold is 0.3V, that is, 0.9V.
Step S312, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate for 15S; meanwhile, controlling the outdoor fan to reversely operate for 35 s; in the dust removal mode, the controller triggers the resonator to start, so that the resonator drives the fins of the condenser to vibrate according to a first preset time length, namely 15s, and the fins of the condenser and the resonator reach a resonance point to resonate, at the moment, the fins of the condenser can greatly vibrate to shake dust, and thus stubborn dust on the condenser is vibrated and loosened; meanwhile, the outdoor fan is controlled to reversely rotate according to a second preset time length, namely 35s, and the dust removed by vibration loosening is reversely blown out;
step S314, acquiring a second acquisition voltage v corresponding to the wind speed acquisition device2(ii) a Namely, after the outdoor fan rotates reversely for 35s, the outdoor fan is controlled to rotate positively, and when the outdoor fan reaches the maximum rotating speed, the second collecting voltage v corresponding to the wind speed collector is obtained2；
Step S316, judging v2More than or equal to 0.8V, namely judging the second acquisition voltage V2Whether the voltage is not less than a preset second voltage threshold value of 0.8V or not; if so, go to step S318; if not, continuing to remove dust for the condenser according to the dust removal mode, and executing the step S320;
step S318, controlling the air conditioner to exit the dust removal mode, and returning to the step S306, namely controlling the air conditioner to normally operate;
step S320, judging whether the dust removal frequency reaches three times; judging whether the dust removal frequency reaches a preset frequency, wherein the preset frequency is three times, if not, returning to the step S312, and repeatedly removing dust for the condenser according to a dust removal mode; if yes, go back to step S322;
step S322, judging v2More than or equal to 0.3V; if yes, go to step S324; if not, go to step S326; it should be noted that, here, the second collecting voltage v reaches the preset number of times2The third collecting voltage reaching the preset times is obtained according to the v at the moment2Determining to generate first alarm information or second alarm information;
step S324, generating first alarm information; sending the first alarm information to an alarm module so that the alarm module carries out alarm prompt according to the first alarm information to prompt a user to carry out manual dust removal on the condenser; i.e. when the dust removal times reach the preset times, if V is more than or equal to 0.3V2If the voltage is less than 0.8V, the controller generates first alarm information to prompt a user to manually remove dust;
step S326, generating second alarm information; sending the second alarm information to an alarm module so that the alarm module carries out alarm prompt according to the second alarm information to prompt a user to check whether the condenser sends the second alarm information or notPlugging; i.e. if v2When the temperature is less than 0.3V, the air conditioner is controlled to stop, and a user is prompted to check whether the condenser is blocked by foreign matters or not according to second alarm information, so that when the condenser is blocked, the user can timely master the blockage information of the condenser and timely process the condenser, and the heat exchange efficiency of the condenser is improved.
To sum up, according to the condenser dust removal method provided by the embodiment of the invention, when the condenser needs to be subjected to dust removal, the fins of the condenser are driven by the resonator to vibrate according to a first preset time length according to a resonance principle so as to loosen stubborn dust on the condenser, and meanwhile, the outdoor fan is controlled to reversely rotate according to a second preset time length so as to reversely blow out the dust removed by vibration, so that the automatic dust removal of the condenser is realized, the dust accumulation of the condenser is reduced, and in addition, the dust removal method is combined with the alarm module to prompt a user to manually remove dust or check whether the condenser is blocked, so that the heat exchange effect of the condenser is further ensured, the air conditioner can exert the optimal performance, and the comfort level of the user is improved; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
Corresponding to the method embodiment, the embodiment of the invention also provides a dust removal device for the condenser, and the outdoor unit of the air conditioner comprises a condenser and an outdoor fan; the condenser is provided with at least one resonator, and a wind speed collector is arranged between the condenser and the outdoor fan; as shown in fig. 4, the apparatus includes:
the acquiring module 41 is used for acquiring a first acquisition voltage corresponding to the wind speed acquisition device when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed; the first collected voltage is used for representing a voltage value generated by rotation of the wind speed collector under the action of the wind speed of the outdoor fan;
the judging module 42 is configured to judge whether the first collecting voltage is smaller than a preset first voltage threshold;
a mode control module 43, for controlling the air conditioner to enter a dust removal mode if yes;
the dust removal control module 44 is configured to trigger the resonator to start up in the dust removal mode, so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser; and the second preset time length is not less than the first preset time length.
When the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, the dust removal device of the condenser acquires a first acquisition voltage corresponding to the air speed acquisition device; when the first collecting voltage is smaller than a preset first voltage threshold, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, the outdoor fan is controlled to reversely rotate according to a second preset time length so as to remove dust from the condenser, and in the dust removal mode, the resonator drives the fins of the condenser to resonate so as to automatically remove dust from the condenser, thereby reducing dust accumulation of the condenser, ensuring the heat exchange effect of the condenser, enabling the air conditioner to exert the best performance and improving the comfort level of a user; and the dust removal control system has the characteristics of low dust removal implementation cost, low energy consumption and simple and effective dust removal control mode, and is convenient to popularize and implement in practical application.
In one possible embodiment, the apparatus further comprises: when the reverse operation time of the outdoor fan reaches a second preset time, controlling the outdoor fan to normally operate; when the outdoor fan reaches the maximum rotating speed, acquiring a second acquisition voltage corresponding to the wind speed acquisition device; judging whether the second acquisition voltage is not less than a preset second voltage threshold value or not; the preset second voltage threshold is greater than the preset first voltage threshold; if so, controlling the air conditioner to exit the dust removal mode.
In another possible embodiment, the apparatus further comprises: and if the second acquisition voltage is smaller than a preset second voltage threshold value, repeatedly carrying out dust removal on the condenser according to the dust removal mode.
In another possible embodiment, the air conditioner further includes an alarm module, and the apparatus further includes: when the dust removal times reach preset times, acquiring a third acquisition voltage corresponding to the wind speed acquisition device; judging whether the third acquisition voltage is smaller than a preset second voltage threshold value and not smaller than a preset first voltage threshold value; if yes, generating first alarm information; and sending the first alarm information to an alarm module so that the alarm module carries out alarm prompt according to the first alarm information to prompt a user to carry out manual dust removal on the condenser.
In another possible embodiment, the apparatus further comprises: if the third collected voltage is smaller than a preset first voltage threshold, controlling the air conditioner to stop and generating second alarm information; and sending the second alarm information to an alarm module so that the alarm module carries out alarm prompt according to the second alarm information to prompt a user to check whether the condenser is blocked or not.
In another possible embodiment, the apparatus further comprises: when the air conditioner is started for the first time and the outdoor fan reaches the maximum rotating speed, acquiring a reference acquisition voltage corresponding to the wind speed collector; and determining a preset first voltage threshold and a preset second voltage threshold according to the reference acquisition voltage.
In another possible implementation, the determining the preset first voltage threshold and the preset second voltage threshold according to the reference collecting voltage includes: calculating a preset first voltage threshold and a preset second voltage threshold according to the following formula: v1 ═ 0.3V0, V2 ═ 0.8V 0; wherein V1 represents the preset first voltage threshold, V2 represents the preset second voltage threshold, and V0 represents the reference pickup voltage.
The condenser dust removal device provided by the embodiment of the invention has the same technical characteristics as the condenser dust removal method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the invention also provides an air conditioner, which comprises a processor and a memory, wherein the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to realize the condenser dust removal method.
The present embodiments also provide a machine-readable storage medium having stored thereon machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the condenser dust removal method described above.
The method and the device for removing dust in a condenser and the computer program product of the air conditioner provided by the embodiments of the present invention include a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A dust removal method for a condenser is characterized in that an outdoor unit of an air conditioner comprises the condenser and an outdoor fan; the condenser is provided with at least one resonator, and a wind speed collector is arranged between the condenser and the outdoor fan; the method comprises the following steps:
when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed, acquiring a first acquisition voltage corresponding to the wind speed acquisition device; the first acquisition voltage is used for representing a voltage value generated by the rotation of the wind speed acquisition device under the action of the wind speed of the outdoor fan;
judging whether the first acquisition voltage is smaller than a preset first voltage threshold value or not;
if so, controlling the air conditioner to enter a dust removal mode;
in the dust removal mode, triggering the resonator to start so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser; and the second preset time length is not less than the first preset time length.
2. The method of claim 1, further comprising:
when the reverse operation time of the outdoor fan reaches the second preset time, controlling the outdoor fan to operate in a forward rotation mode;
when the outdoor fan reaches the maximum rotating speed, acquiring a second acquisition voltage corresponding to the wind speed acquisition device;
judging whether the second acquisition voltage is not less than a preset second voltage threshold value or not; wherein the preset second voltage threshold is greater than the preset first voltage threshold;
and if so, controlling the air conditioner to exit the dust removal mode.
3. The method of claim 2, further comprising:
and if the second collecting voltage is smaller than the preset second voltage threshold, repeatedly carrying out dust removal on the condenser according to the dust removal mode.
4. The method of claim 3, wherein the air conditioner further comprises an alarm module, the method further comprising:
when the dust removal times reach preset times, acquiring a third acquisition voltage corresponding to the wind speed acquisition device;
judging whether the third acquisition voltage is smaller than the preset second voltage threshold value and not smaller than the preset first voltage threshold value;
if yes, generating first alarm information;
and sending the first alarm information to the alarm module so that the alarm module carries out alarm prompt according to the first alarm information to prompt a user to manually remove dust of the condenser.
5. The method of claim 4, further comprising:
if the third acquisition voltage is smaller than the preset first voltage threshold, controlling the air conditioner to stop and generating second alarm information;
and sending the second alarm information to the alarm module so that the alarm module carries out alarm prompt according to the second alarm information to prompt the user to check whether the condenser is blocked or not.
6. The method according to any one of claims 1-5, further comprising:
when the air conditioner is started for the first time and the outdoor fan reaches the maximum rotating speed, acquiring reference acquisition voltage corresponding to the wind speed collector;
and determining the preset first voltage threshold and the preset second voltage threshold according to the reference acquisition voltage.
7. The method of claim 6, wherein the step of determining the preset first voltage threshold and the preset second voltage threshold from the reference acquisition voltage comprises:
calculating the preset first voltage threshold and the preset second voltage threshold according to the following formula:
V1＝0.3V0，V2＝0.8V0
wherein V1 represents the preset first voltage threshold, V2 represents the preset second voltage threshold, and V0 represents the reference collecting voltage.
8. A dust collector for condenser is characterized in that the outdoor unit of air conditioner comprises condenser and outdoor fan; the condenser is provided with at least one resonator, and a wind speed collector is arranged between the condenser and the outdoor fan; the device comprises:
the acquisition module is used for acquiring a first acquisition voltage corresponding to the wind speed acquisition device when the air conditioner is started to operate and the outdoor fan reaches the maximum rotating speed; the first acquisition voltage is used for representing a voltage value generated by the rotation of the wind speed acquisition device under the action of the wind speed of the outdoor fan;
the judging module is used for judging whether the first collecting voltage is smaller than a preset first voltage threshold value or not;
the mode control module is used for controlling the air conditioner to enter a dust removal mode if the air conditioner is in the dust removal mode;
the dust removal control module is used for triggering the resonator to start in the dust removal mode so that the resonator drives the fins of the condenser to vibrate according to a first preset time length; meanwhile, controlling the outdoor fan to reversely rotate according to a second preset time length so as to remove dust from the condenser; and the second preset time length is not less than the first preset time length.
9. An air conditioner comprising a memory, a processor and a computer program stored on said memory and executable on said processor, wherein said processor when executing said computer program performs the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, performs the steps of the method of any of the preceding claims 1-7.
CN202210077743.3A 2022-01-24 2022-01-24 Dust removing method and device for condenser and air conditioner Active CN114484727B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115265006A (en) * 2022-07-12 2022-11-01 澳柯玛股份有限公司 Automatic dust removal system of refrigerator condenser and control method
CN117393277A (en) * 2023-12-11 2024-01-12 江苏华辰变压器股份有限公司 Ventilation system and method for dry-type transformer box body of new energy storage integrated machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010002070A (en) * 2008-06-18 2010-01-07 Kowa Co Ltd Air conditioner
CN106403202A (en) * 2016-11-15 2017-02-15 芜湖美智空调设备有限公司 Method and device for reducing dirt retention of air conditioner and air conditioner
CN111023524A (en) * 2019-11-26 2020-04-17 宁波奥克斯电气股份有限公司 Control method and control device for dust removal of condenser, storage medium and air conditioner
CN112361532A (en) * 2020-09-10 2021-02-12 江苏友奥电器有限公司 Dust removal method and device for outdoor unit of household air conditioner
CN112594794A (en) * 2020-12-10 2021-04-02 珠海格力电器股份有限公司 Cleaning device, cleaning method, outdoor unit and air conditioner
CN112696807A (en) * 2020-12-24 2021-04-23 广东积微科技有限公司 Self-cleaning method and device of air conditioner and computer equipment
CN113551360A (en) * 2021-07-07 2021-10-26 珠海格力电器股份有限公司 Self-cleaning control method and device, medium and equipment for air conditioner filter screen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010002070A (en) * 2008-06-18 2010-01-07 Kowa Co Ltd Air conditioner
CN106403202A (en) * 2016-11-15 2017-02-15 芜湖美智空调设备有限公司 Method and device for reducing dirt retention of air conditioner and air conditioner
CN111023524A (en) * 2019-11-26 2020-04-17 宁波奥克斯电气股份有限公司 Control method and control device for dust removal of condenser, storage medium and air conditioner
CN112361532A (en) * 2020-09-10 2021-02-12 江苏友奥电器有限公司 Dust removal method and device for outdoor unit of household air conditioner
CN112594794A (en) * 2020-12-10 2021-04-02 珠海格力电器股份有限公司 Cleaning device, cleaning method, outdoor unit and air conditioner
CN112696807A (en) * 2020-12-24 2021-04-23 广东积微科技有限公司 Self-cleaning method and device of air conditioner and computer equipment
CN113551360A (en) * 2021-07-07 2021-10-26 珠海格力电器股份有限公司 Self-cleaning control method and device, medium and equipment for air conditioner filter screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115265006A (en) * 2022-07-12 2022-11-01 澳柯玛股份有限公司 Automatic dust removal system of refrigerator condenser and control method
CN117393277A (en) * 2023-12-11 2024-01-12 江苏华辰变压器股份有限公司 Ventilation system and method for dry-type transformer box body of new energy storage integrated machine
CN117393277B (en) * 2023-12-11 2024-02-27 江苏华辰变压器股份有限公司 Ventilation system and method for dry-type transformer box body of new energy storage integrated machine

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