CN115013939B - Self-cleaning method of air conditioner, operation control device and storage medium - Google Patents
Self-cleaning method of air conditioner, operation control device and storage medium Download PDFInfo
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- CN115013939B CN115013939B CN202210426250.6A CN202210426250A CN115013939B CN 115013939 B CN115013939 B CN 115013939B CN 202210426250 A CN202210426250 A CN 202210426250A CN 115013939 B CN115013939 B CN 115013939B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000012535 impurity Substances 0.000 claims abstract description 119
- 230000004044 response Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 136
- 230000000694 effects Effects 0.000 abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a self-cleaning method of an air conditioner, the air conditioner, an operation control device and a storage medium, wherein the air conditioner comprises a throttle valve connected between an evaporator and a condenser, and a filter assembly connected in parallel with the throttle valve, wherein the filter assembly comprises a filter and a filter valve; the self-cleaning method of the air conditioner comprises the following steps: closing the throttle valve and opening the filter valve in response to the self-cleaning signal; controlling the air conditioner to operate in a preset first mode; when the operation time reaches the preset cleaning time, the filter valve is closed, and the throttle valve is opened. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, so that the opening and closing states of the throttle valve and the filter valve are controlled, impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a self-cleaning method for an air conditioner, an operation control device, and a storage medium.
Background
An air conditioner is a device capable of cooling or heating an indoor space, and components in the air conditioner are easily worn out due to long-term use of the air conditioner, thereby generating impurities. Along with the continuous operation of the air conditioner, the generated impurities repeatedly flow in the air conditioner under the drive of the refrigerant, so that the operation environment in the air conditioner is gradually deteriorated, and the air conditioner is damaged.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a self-cleaning method of an air conditioner, the air conditioner, an operation control device and a storage medium, which can automatically filter impurities in a refrigerant under the condition that the normal operation state of the air conditioner is not affected, and realize the self-cleaning of the air conditioner.
In a first aspect, an embodiment of the present invention provides a self-cleaning method of an air conditioner, the air conditioner including a throttle valve connected between an evaporator and a condenser, a filter assembly connected in parallel with the throttle valve, the filter assembly including a filter and a filter valve;
the self-cleaning method of the air conditioner comprises the following steps:
closing the throttle valve and opening the filter valve in response to a self-cleaning signal;
controlling the air conditioner to operate in a preset first mode;
And when the operation time reaches the preset cleaning time, closing the filter valve, and opening the throttle valve.
The self-cleaning method of the air conditioner provided by the embodiment of the invention has at least the following beneficial effects: under the condition that a self-cleaning signal is received, the throttle valve is closed, the filter valve is opened, so that the refrigerant circulates from the bypass branch, impurities and moisture in the refrigerant can be filtered by the filter after the refrigerant flows through the filter, and the refrigerant is purified. The air conditioner is controlled to continuously run in a preset first mode until a preset cleaning time is long, so that the refrigerant circularly flows through the filter, impurities and moisture in the refrigerant are filtered out fully, and the air conditioner is prevented from being damaged due to the fact that the impurities repeatedly flow in the air conditioner. When the operation time reaches the preset cleaning time, impurities and water are considered to be filtered, the filter valve is closed, and the throttle valve is opened, so that the normal operation of the air conditioner is prevented from being influenced. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, and the self-cleaning method of the air conditioner is matched, so that impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
In the self-cleaning method of the air conditioner, the self-cleaning signal is obtained by one or more of the following conditions:
the air conditioner is started for the first time;
receiving a self-cleaning command;
the test operation parameters reach preset cleaning conditions.
And under the condition that the air conditioner is started after being installed for the first time, or a self-cleaning command is received, or the test operation parameters reach the preset cleaning conditions, a self-cleaning signal for controlling the air conditioner to automatically clean is sent out. According to different conditions, the self-cleaning signal is sent out, so that the air conditioner can automatically clean and filter out impurities in the refrigerant.
In the self-cleaning method of the air conditioner, the test operation parameters include a test indoor temperature, a test outdoor temperature and a test exhaust temperature; the preset cleaning condition is that the temperature in the test room is smaller than or equal to the temperature in the calibration room, and the difference between the temperature of the test exhaust gas and the temperature outside the test room is larger than or equal to the difference between the temperature of the calibration exhaust gas and the temperature outside the calibration room.
And judging whether the air conditioner needs to be self-cleaned or not by judging the test operation parameters and the calibration operation parameters. When the temperature in the test room is smaller than or equal to the temperature in the calibration room and the difference between the temperature in the test exhaust room and the temperature in the test room is larger than or equal to the difference between the temperature in the calibration exhaust room and the temperature in the calibration room, the current air conditioner can be considered to need to be self-cleaned, and then a self-cleaning signal is sent out.
In the above self-cleaning method of an air conditioner, when the self-cleaning signal is obtained by first starting up the air conditioner, the operation time period reaches a preset cleaning time period, the filter valve is closed, and after the throttle valve is opened, the method includes:
controlling the air conditioner to operate in the first mode;
when the operation time length reaches the preset calibration time length, acquiring the current indoor temperature as the calibration indoor temperature, acquiring the current outdoor temperature as the calibration outdoor temperature, and acquiring the current exhaust temperature as the calibration exhaust temperature.
When the air conditioner is started for the first time and the running time of the first mode reaches the preset cleaning time, the air conditioner is controlled to run in the first mode again, and under the condition that the running time reaches the preset calibration time, the current indoor temperature, the current outdoor temperature and the current exhaust temperature are obtained and are used as the calibration indoor temperature, the calibration outdoor temperature and the calibration exhaust temperature.
In the self-cleaning method of the air conditioner, the air conditioner is controlled to operate in the first mode under the condition that the throttle valve is opened and the filter valve is closed;
when the operation time length reaches the preset test time length, acquiring the current indoor temperature as the test indoor temperature, acquiring the current outdoor temperature as the test outdoor temperature, and acquiring the current exhaust temperature as the test exhaust temperature.
And controlling the air conditioner to run for a preset test duration in a preset mode, detecting the current indoor temperature, the outdoor temperature and the exhaust temperature, and judging whether the air conditioner needs to be self-cleaned or not through the current indoor temperature, the outdoor temperature and the exhaust temperature.
In the self-cleaning method of the air conditioner, the responding to the self-cleaning signal closes the throttle valve and opens the filter valve, and the method comprises the following steps:
closing the filter valve and opening the throttle valve in response to a self-cleaning signal;
controlling the air conditioner to operate in a preset second mode;
and when the operation time reaches the preset dredging time, closing the throttle valve and opening the filter valve.
Through the operation of a preset second mode, the refrigerant reversely flows to disperse impurities in the throttle valve and dredge the throttle valve, so that the impurities can be fully absorbed in subsequent operation.
In the self-cleaning method of the air conditioner, when the first mode is a cooling mode, the second mode is a heating mode; when the first mode is a heating mode, the second mode is a cooling mode.
Through switching different modes, the refrigerant flow direction in the air conditioner is changed, impurities in the throttle valve are dispersed, the throttle valve is dredged, and the filter is helped to sufficiently filter impurities in the air conditioner.
In a second aspect, an embodiment of the present invention provides an air conditioner, including:
a throttle valve connected between the evaporator and the condenser
The filter assembly is connected with the throttle valve in parallel and comprises a filter and a filter valve;
and a control processing part connected with the throttle valve and the filter valve respectively and used for:
closing the throttle valve and opening the filter valve in response to a self-cleaning signal;
controlling the air conditioner to operate in a preset first mode;
and when the operation time reaches the preset cleaning time, closing the filter valve, and opening the throttle valve.
The air conditioner provided by the embodiment of the invention has at least the following beneficial effects: under the condition that a self-cleaning signal is received, the control processing part controls the throttle valve to be closed and the filter valve to be opened, so that the refrigerant circulates from the bypass branch, impurities and moisture in the refrigerant can be filtered by the filter after the refrigerant flows through the filter, and the refrigerant is purified. The control processing component controls the air conditioner to continuously run in a preset first mode for a preset cleaning time period, so that the refrigerant circularly flows through the filter, impurities and moisture in the refrigerant are sufficiently filtered, and the air conditioner is prevented from being damaged due to the fact that the impurities repeatedly flow in the air conditioner. When the operation time reaches the preset cleaning time, impurities and water are considered to be filtered, the control processing component controls the filter valve to be closed and the throttle valve to be opened, so that the normal operation of the air conditioner is prevented from being influenced. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, and the self-cleaning method of the air conditioner is matched, so that impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
In a third aspect, an embodiment of the present invention provides an operation control apparatus, including at least one control processor and a memory for communication connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the self-cleaning method of the air conditioner as described in the embodiment of the first aspect.
The operation control device provided by the embodiment of the invention has at least the following beneficial effects: under the condition that a self-cleaning signal is received, the throttle valve is closed, the filter valve is opened, so that the refrigerant circulates from the bypass branch, impurities and moisture in the refrigerant can be filtered by the filter after the refrigerant flows through the filter, and the refrigerant is purified. The air conditioner is controlled to continuously run in a preset first mode until a preset cleaning time is long, so that the refrigerant circularly flows through the filter, impurities and moisture in the refrigerant are filtered out fully, and the air conditioner is prevented from being damaged due to the fact that the impurities repeatedly flow in the air conditioner. When the operation time reaches the preset cleaning time, impurities and water are considered to be filtered, the filter valve is closed, and the throttle valve is opened, so that the normal operation of the air conditioner is prevented from being influenced. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, and the self-cleaning method of the air conditioner is matched, so that impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the self-cleaning method of an air conditioner according to the embodiment of the first aspect.
The computer readable storage medium provided according to the embodiment of the invention has at least the following beneficial effects: under the condition that a self-cleaning signal is received, the throttle valve is closed, the filter valve is opened, so that the refrigerant circulates from the bypass branch, impurities and moisture in the refrigerant can be filtered by the filter after the refrigerant flows through the filter, and the refrigerant is purified. The air conditioner is controlled to continuously run in a preset first mode until a preset cleaning time is long, so that the refrigerant circularly flows through the filter, impurities and moisture in the refrigerant are filtered out fully, and the air conditioner is prevented from being damaged due to the fact that the impurities repeatedly flow in the air conditioner. When the operation time reaches the preset cleaning time, impurities and water are considered to be filtered, the filter valve is closed, and the throttle valve is opened, so that the normal operation of the air conditioner is prevented from being influenced. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, and the self-cleaning method of the air conditioner is matched, so that impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
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 claims hereof as well as the appended drawings.
Drawings
The invention is further described below with reference to the drawings and examples;
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart of a self-cleaning method provided by an embodiment of the present invention;
FIG. 3 is a detailed flowchart after step S300 in FIG. 2;
FIG. 4 is a flowchart of a process for obtaining test operating parameters according to an embodiment of the present invention;
fig. 5 is a specific flowchart of step S100 in fig. 2;
fig. 6 is a schematic structural diagram of an air conditioner with a heating mode of a first mode according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an air conditioner with a cooling/heating mode of a first mode according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an operation control device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
It should be appreciated that in the description of embodiments of the present invention, the descriptions of "first," "second," etc. are for the purpose of distinguishing between technical features only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. "at least one" means one or more, and "a plurality" means two or more. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items.
Furthermore, unless explicitly specified and limited otherwise, the term "coupled/connected" is to be interpreted broadly, as for example, being either fixedly coupled or movably coupled, being either detachably coupled or not detachably coupled, or being integrally coupled; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium.
In the description of the embodiments of the present invention, the descriptions of the terms "one embodiment/implementation," "another embodiment/implementation," or "certain embodiments/implementations," "the above embodiments/implementations," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or examples is included in at least two embodiments or implementations of the present disclosure. In this disclosure, schematic representations of the above terms do not necessarily refer to the same illustrative embodiment or implementation. It should be noted that although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different from that in the flowchart.
The technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment of the invention provides a self-cleaning method of an air conditioner, the air conditioner, an operation control device and a storage medium, wherein the air conditioner comprises a throttle valve connected between an evaporator and a condenser, and a filter assembly connected in parallel with the throttle valve, wherein the filter assembly comprises a filter and a filter valve; the self-cleaning method of the air conditioner comprises the following steps: closing the throttle valve and opening the filter valve in response to the self-cleaning signal; controlling the air conditioner to operate in a preset first mode; when the operation time reaches the preset cleaning time, the filter valve is closed, and the throttle valve is opened. According to the self-cleaning method of the air conditioner, provided by the embodiment of the invention, under the condition that the self-cleaning signal is received, the throttle valve and the filter valve are controlled, so that the refrigerant passes through the bypass branch, impurities and moisture in the refrigerant are filtered, the impurities in the refrigerant can be automatically filtered under the condition that the normal running state of the air conditioner is not affected, the self-cleaning of the air conditioner is realized, and the air conditioner is prevented from being damaged due to the fact that the impurities repeatedly flow in the air conditioner.
Embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention.
In the example of fig. 1, the air conditioner 100 of the embodiment of the present invention includes a condenser 150, an evaporator 160, a throttle valve 110, a filter assembly, and a control processing part 140, wherein the throttle valve 110 is connected to the condenser 150 and the evaporator 160, respectively, and the filter assembly is connected in parallel with the throttle valve 110, i.e., the filter assembly is connected to the condenser 150 and the evaporator 160, respectively. The filter assembly includes a filter valve 120 and a filter 130. The control processing unit 140 is connected to the throttle valve 110 and the filter valve 120, respectively, and the control processing unit 140 can control the opening and closing states of the throttle valve 110 and the filter valve 120. The air conditioner 100 operates in a normal operating state, i.e., the throttle valve 110 is opened, the filter valve 120 is closed, and the refrigerant flows only through the throttle valve 110, and a filter screen is arranged in the throttle valve 110 for filtering out part of impurities, so as to avoid the phenomenon that the impurities repeatedly circulate in the air conditioner 100 to damage the internal components of the air conditioner 100. When the throttle valve 110 is closed, the filter valve 120 is opened, and the air conditioner 100 operates in the first mode, the refrigerant flows into the filter valve 120 and then passes through the filter 130, so that the filter 130 absorbs impurities and moisture in the refrigerant, and the impurities are prevented from flowing in the air conditioner 100.
The air conditioner described in the embodiment of the present invention is for more clearly describing the technical solution of the embodiment of the present invention, and does not constitute a limitation to the technical solution provided in the embodiment of the present invention, and as a person skilled in the art can know that, with the evolution of the air conditioner and the appearance of a new application scenario, the technical solution provided in the embodiment of the present invention is applicable to similar technical problems.
It will be appreciated by those skilled in the art that the configuration of the air conditioner shown in fig. 1 is not limiting of the embodiments of the invention and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
Based on the structure of the air conditioner described above, various embodiments of the self-cleaning method of the present invention are presented.
Referring to fig. 2, fig. 2 is a flowchart of a self-cleaning method according to an embodiment of the present invention, which may be applied to the air conditioner shown in fig. 1, the self-cleaning method of the air conditioner includes, but is not limited to, the following steps:
step S100, responding to a self-cleaning signal, closing a throttle valve and opening a filter valve;
step S200, controlling the air conditioner to operate in a preset first mode;
and step S300, when the operation time reaches the preset cleaning time, closing the filter valve and opening the throttle valve.
It can be understood that under the condition that the self-cleaning signal is received, the air conditioner is considered to need to perform self-cleaning operation, therefore, the throttle valve is closed, the filter valve connected in parallel with the throttle valve is opened, so that the refrigerant originally flowing through the throttle valve passes through the filter valve and the filter, the filter filters the passing refrigerant, impurities in the refrigerant are filtered, moisture in the refrigerant is absorbed, the refrigerant is dried, the air conditioner is prevented from being damaged due to repeated flowing of the impurities in the air conditioner, and the working effect of the air conditioner is improved.
Under the condition that the throttle valve is closed and the filter valve is opened, the air conditioner is controlled to operate in a preset first mode, namely, the refrigerant sequentially passes through the filter valve and the filter and circulates through the filter valve and the filter, so that the filter can fully absorb impurities in the refrigerant. In addition, because the throttle valve is connected with the filter assembly in parallel, under the condition that the throttle valve is closed and the filter valve is opened, the refrigerant can normally flow from the filter valve and the filter, so that the air conditioner can perform self-cleaning under the condition that the normal operation of the air conditioner is not influenced, and impurities flowing in the refrigerant are reduced.
When the air conditioner runs in the first mode for a preset cleaning time, the filter is considered to filter impurities in the refrigerant, the filter valve is closed, and the throttle valve is opened. Therefore, impurities are collected in the filter and can not flow in the air conditioner, so that the self-cleaning effect of the refrigerant in the air conditioner is achieved, in addition, the impurities flowing in the refrigerant are reduced, the parts of the air conditioner can be protected from being interfered by the impurities, and the durability of the parts of the air conditioner is improved.
It can be understood that when the air conditioner is first turned on, or a self-cleaning command is received, or the test operation parameter reaches a preset cleaning condition, the air conditioner is considered to need to perform self-cleaning, a self-cleaning signal is generated, so that the air conditioner closes the throttle valve, opens the filter valve, and operates in the first mode for a cleaning duration.
Before or during the installation of the air conditioner, some impurities and moisture may exist in the refrigerant passage. The impurities flow along with the refrigerant, and rub and collide with the cylinder body of the compressor, so that the compressor is easy to damage, and the refrigerant contains moisture, so that the refrigerating effect and the heating effect of the air conditioner can be reduced. Therefore, when the air conditioner is started for the first time after being installed, a self-cleaning signal is generated, and impurities and moisture in a refrigerant channel of the air conditioner are required to be filtered. Therefore, when the air conditioner is started for the first time after being installed, a self-cleaning signal is generated, so that the throttle valve is closed, the filter valve is opened, the refrigerant passes through the filter, and the filter can absorb impurities and moisture in the refrigerant. And the air conditioner operates in a first mode, the refrigerant sequentially flows through the filter valve and the filter, when the operation time of the air conditioner in the first mode reaches the cleaning time, the air conditioner is considered to be clean, the filter valve is closed, and the throttle valve is opened, so that impurities are collected in the filter and do not flow along with the refrigerant, and the effect of self-cleaning of the refrigerant is achieved.
Along with the continuous work of air conditioner, the wearing and tearing appear easily and produce impurity in the air conditioner internals, and the impurity can flow along with the refrigerant, and then wearing and tearing air conditioner internals, worsen air conditioner internal environment, consequently, can set up clean cycle in advance, reach clean cycle when last self-cleaning's duration, then send self-cleaning signal for the air conditioner is automatic clean, get rid of the impurity in the refrigerant, thereby realize the timing clearance of impurity in the air conditioner, protection air conditioner internals, make the air conditioner can stable work, avoid impurity to damage the air conditioner.
In addition, the air conditioner can also respond to the self-cleaning signal sent by the outside to perform self-cleaning, for example, the air conditioner can receive the self-cleaning signal sent by the remote controller, and when the user needs the air conditioner to perform self-cleaning, the air conditioner can send the self-cleaning signal through the remote controller, so that the air conditioner can automatically perform cleaning.
The air conditioner can also determine whether self-cleaning is needed by judging the impurity content in the refrigerant under the current condition, wherein whether the test operation parameters acquired under the current condition meet preset cleaning conditions can be judged by acquiring the test operation parameters under the current condition. Because the air conditioner is used for a long time, a large amount of impurities generated in the air conditioner block the throttle valve, and the refrigerating effect or the heating effect of the air conditioner is affected. When the test operation parameters meet the preset cleaning conditions, the air conditioner can be considered to have higher impurity content of the refrigerant under the current condition, the throttle valve is blocked, impurities in the refrigerant are required to be cleaned, and therefore the condition that the throttle valve is blocked by the impurities is reduced, and long-time efficient operation of the air conditioner is realized. When the test operation parameters do not meet the preset cleaning conditions, the air conditioner can be considered to have lower impurity content of the refrigerant under the current condition, the refrigerant can smoothly pass through the throttle valve, impurities in the refrigerant are not required to be cleaned, and therefore self-cleaning can be avoided under the condition that the impurities in the refrigerant are less, and the working efficiency of the air conditioner is influenced.
It should be noted that, the air conditioner may periodically obtain the test operation parameters, determine whether the impurity content in the refrigerant generates a self-cleaning signal, and clean the impurities in the air conditioner. For example, the air conditioner may acquire the test operation parameters under the current condition every one month, and determine whether the test operation parameters satisfy the preset cleaning condition to generate the self-cleaning signal. Therefore, the automatic month self-checking of the air conditioner can be realized, and the intelligent self-cleaning of the air conditioner can be realized.
It will be appreciated that the test operating parameters include a test room temperature, a test room outside temperature, and a test exhaust temperature, and that the preset cleaning conditions include a corresponding nominal room temperature, nominal room outside temperature, and nominal exhaust temperature. When the temperature in the test room is smaller than or equal to the calibrated indoor temperature and the difference between the temperature of the test exhaust gas and the temperature of the test room is larger than or equal to the difference between the calibrated exhaust gas temperature and the temperature of the calibrated room, the test operation parameters can be considered to meet the preset cleaning conditions, namely the throttle valve is blocked by impurities, the normal operation of the air conditioner is affected, and the refrigerant needs to be self-cleaned. The exhaust temperature refers to the temperature of the compressor in the air conditioner when the exhaust temperature is too high, the throttle is reduced, the refrigeration efficiency is low, namely, the throttle valve is blocked by impurities, and the operation of the air conditioner is affected. Under the condition of lower ambient temperature, for example in winter, the air conditioner obtains lower numerical value of the test operation parameter, so that the test temperature difference value is calculated by the difference between the test exhaust temperature and the test outdoor temperature, the calibration temperature difference value is calculated by the difference between the calibration exhaust temperature and the calibration outdoor temperature, and the test temperature difference value and the calibration temperature difference value are compared. Under the condition that the temperature in the test room is smaller than or equal to the temperature in the calibration room, when the temperature difference value is larger than or equal to the temperature difference value, the test exhaust value is considered to be higher under the condition of the current environment, and the throttle valve is blocked by impurities and needs to be cleaned automatically.
It should be noted that the test operation parameter is obtained when the air conditioner is in a preset first mode at the first frequency. The indoor temperature, the outdoor temperature and the exhaust temperature are calibrated operating parameters which are in a first mode of a first frequency and reach the standard of working efficiency in the air conditioner, namely the air conditioner in the current situation has fewer impurities and does not need cleaning. The first mode may be a cooling mode or a heating mode.
Referring to fig. 3, fig. 3 is a specific flowchart after step S300 in fig. 2, and in the example of fig. 3, step S300 further includes, but is not limited to, the following steps:
step S400: controlling the air conditioner to operate in a first mode;
step S500: when the operation time length reaches the preset calibration time length, acquiring the current indoor temperature as the calibration indoor temperature, acquiring the current outdoor temperature as the calibration outdoor temperature, and acquiring the current exhaust temperature as the calibration exhaust temperature.
It can be understood that when the air conditioner is started for the first time, the filter valve is opened, the throttle valve is closed, the air conditioner operates in a first mode, so that the refrigerant flows through the filter, the filter filters the refrigerant until the operation duration reaches the preset cleaning duration, and the filter fully absorbs impurities in the refrigerant. At this time, the impurity content of the refrigerant in the air conditioner is considered to be low, and the air conditioner can be operated normally. Therefore, the operation parameter of the air conditioner working in the current state can be obtained as the calibration operation parameter, and the calibration operation parameter is used as the preset cleaning condition. If the follow-up test operation parameters of the air conditioner meet the preset cleaning conditions, the impurity content of the refrigerant in the current state of the air conditioner is considered to be higher, and cleaning is needed. If the subsequent test operation parameters of the air conditioner do not meet the preset cleaning conditions, the impurity content of the refrigerant in the current state of the air conditioner is considered to be low, and cleaning is not needed.
Therefore, when the air conditioner is started for the first time and sends out a self-cleaning signal, the filter valve is in a closed state, and the throttle valve is in an open state, namely, a refrigerant flows through the throttle valve instead of flowing through a bypass branch comprising the filter valve and the filter, the air conditioner is controlled to operate in the first mode again until the operation duration reaches the preset calibration duration, and the indoor temperature, the outdoor temperature and the exhaust temperature of the current environment of the air conditioner are considered to be stable and in normal numerical ranges, so that the indoor temperature, the outdoor temperature and the exhaust temperature in the current state are obtained as calibration operation parameters, and the calibration indoor temperature, the calibration outdoor temperature and the calibration exhaust temperature are obtained.
For example, the first mode is a cooling mode, the air conditioner can be controlled to cool at 20 ℃ as cooling temperature, and after the air conditioner is cooled for 10 minutes in normal operation, the outdoor environment temperature in the current state is obtained as the calibrated outdoor temperature, the current indoor environment temperature is taken as the calibrated indoor temperature, and the exhaust temperature of the current compressor is taken as the calibrated exhaust temperature.
And when the subsequent air conditioner needs to acquire the test operation parameters, the air conditioner also uses 20 ℃ as the refrigeration temperature to perform refrigeration, and after the air conditioner performs normal operation for 10 minutes, namely, the air conditioner is made to perform normal operation in the same frequency and same mode, the outdoor environment temperature in the current state is acquired as the test outdoor temperature, the current indoor environment temperature is taken as the test indoor temperature, the current exhaust temperature of the compressor is taken as the test exhaust temperature, the problem that the calibration operation parameters or the test operation parameters are interfered because the working modes of the air conditioner are different is solved, the judgment of impurity cleaning is affected, and the misjudgment is reduced.
Referring to fig. 4, fig. 4 is a specific flowchart of a process for obtaining test operation parameters according to an embodiment of the present invention, where the process for obtaining test operation parameters includes, but is not limited to, the following steps:
step S600: controlling the air conditioner to operate in a first mode under the condition that the throttle valve is opened and the filter valve is closed;
step S700: when the operation time length reaches the preset test time length, acquiring the current indoor temperature as the test indoor temperature, acquiring the current outdoor temperature as the test outdoor temperature, and acquiring the current exhaust temperature as the test exhaust temperature.
It can be understood that the test operation parameters of the air conditioner need to be obtained under the normal operation condition of the air conditioner, so that the reliability of the test operation parameters is prevented from being affected, that is, when the throttle valve in the air conditioner is in an open state and the filter valve is in a closed state, the air conditioner operates in the first mode. When the operation time length reaches the preset test time length, the air conditioner is considered to be in a stable state under the current condition, and the impurity cleaning judgment is carried out by utilizing the operation parameters under the current state, so that the accuracy of self-cleaning judgment can be improved. Therefore, the temperature of the outdoor environment where the current air conditioner is located can be obtained as the test outdoor temperature, the temperature of the indoor environment where the current air conditioner is located is obtained as the test indoor temperature, and the discharge temperature of the current compressor is obtained as the test discharge temperature.
It should be noted that, if the calibrated indoor temperature, the calibrated outdoor temperature, and the calibrated exhaust temperature are obtained by respectively measuring the temperature of the environment where the air conditioner is located and the temperature of the compressor after the air conditioner operates in the first mode for a preset calibration period, the preset test period may be the same as the preset calibration period. For example, if the preset calibration time period is 20 minutes, that is, the calibration indoor temperature, the calibration outdoor temperature and the calibration exhaust temperature are obtained by respectively measuring the temperature of the environment where the air conditioner is located and the temperature of the compressor after the air conditioner operates in the first mode for 20 minutes, the preset test time period may be set to 20 minutes, that is, the air conditioner may continuously operate in the first mode for 20 minutes under the condition that the throttle valve is in an open state and the filter valve is in a closed state, and the temperature of the environment where the current air conditioner is located and the temperature of the compressor are obtained as test operation parameters. Therefore, by unifying the preset calibration time length and the preset cleaning time length, the interference of the test operation parameters caused by the insufficient operation time length of the air conditioner can be avoided, and the accuracy of self-cleaning judgment is further affected.
It should be noted that, when the air conditioner is started for the first time, the throttle valve is in an open state, and the filter valve is in a closed state, the obtained test indoor temperature after the air conditioner is continuously operated in the first mode for a preset test period may be used as the calibration indoor temperature, the obtained test outdoor temperature may be used as the calibration outdoor temperature, and the obtained test exhaust temperature may be used as the calibration exhaust temperature.
Referring to fig. 5, fig. 5 is a specific flowchart of step S100 in fig. 2, and in the example of fig. 5, step S100 further includes, but is not limited to, the following steps:
step S110: in response to the self-cleaning signal, closing the filter valve and opening the throttle valve;
step S120: controlling the air conditioner to operate in a preset second mode;
step S130: when the operation time reaches the preset dredging time, the throttle valve is closed, and the filter valve is opened.
It will be appreciated that the flow through the throttle valve is reduced due to the clogging of the throttle valve by impurities, which affects the operating efficiency of the air conditioner, and therefore the impurities clogged in the throttle valve need to be cleaned. And under the condition that the self-cleaning signal is received, the filter valve is closed, the throttle valve is opened, and the air conditioner operates in a preset second mode. The preset second mode is different from the first mode, and the refrigerant flow direction in the first mode is different from the refrigerant flow direction in the second mode, for example, the first mode is a refrigeration mode, and the second mode is a heating mode. In the case that the air conditioner is in the first mode, i.e., the air conditioner is in the cooling mode, the refrigerant flows from the condenser to the evaporator, and the filter screen provided at the throttle valve collects the foreign matters at a side close to the condenser.
And under the condition that the air conditioner is in the second mode, namely the air conditioner is in a heating mode, the refrigerant flows from the evaporator to the condenser, so that impurities blocked on the throttle valve can be dispersed in the process that the refrigerant flows through the throttle valve, and the throttle valve is dredged. Therefore, by switching different working modes of the air conditioner, the flow direction of the refrigerant is changed, so that impurities blocked on the throttle valve are impacted by the refrigerant flowing reversely to be dispersed, and the throttle valve is dredged.
When the air conditioner is operated in the second mode for a preset dredging period, the throttle valve is considered to be free of blocking impurities, and the refrigerant contains a large amount of flowing impurities. Therefore, the throttle valve is closed, the filter valve is opened, and the refrigerant flows through the bypass branch comprising the filter valve and the filter, so that the filter can filter impurities of the refrigerant, collect the impurities in the refrigerant, prevent the throttle valve from being blocked again by the impurities, and influence the working efficiency of the air conditioner.
It should be noted that, because the air conditioner is first used, the impurity in the refrigerant does not block the throttle valve, so the air conditioner does not need to be controlled to operate in the second mode, and the throttle valve is opened by the reversely flowing refrigerant. When the self-cleaning signal sent by the air conditioner is started for the first time, the air conditioner can not execute the operations of closing the filter valve, opening the throttle valve and running the second mode, so that the self-cleaning operation of the air conditioner is reduced, and the efficient work of the air conditioner is kept.
Note that the first mode may be a heating mode, and the second mode may be a cooling mode. When the air conditioner is in the first mode, namely the air conditioner is in a heating mode, the refrigerant flows from the evaporator to the condenser, and the filter screen arranged on the throttle valve collects impurities on one side close to the evaporator. When the air conditioner is in the second mode, namely the air conditioner is in a refrigerating mode, the refrigerant flows from the condenser to the evaporator, so that impurities blocked in the throttle valve can be dispersed in the process that the refrigerant flows through the throttle valve, and the throttle valve is dredged.
The filter screen is arranged in the throttle valve, so that part of impurities can be filtered, and the air conditioner can be used for a long time, and the impurities in the refrigerant can be accumulated on one side of the throttle valve. The locations where the impurities are collected are different depending on the flow direction of the refrigerant, for example, in the case of the cooling mode, the impurities are easily collected on the side close to the condenser, and in the case of the heating mode, the impurities are easily collected on the side close to the evaporator. Therefore, the first mode may be set according to a common mode of the air conditioner, for example, the common mode of the air conditioner may be determined according to a usage time period of each mode of the air conditioner, and when the usage time period of the air conditioner in the cooling mode is longer than that in the heating mode, the cooling mode is the common mode, that is, most of impurities in the refrigerant may be considered to be accumulated on a side close to the condenser, and therefore, a refrigerant dredging throttle valve flowing from the evaporator to the condenser needs to be adopted, and therefore, the first mode may be set as the cooling mode, and the second mode may be set as the heating mode.
Referring to fig. 1, 6 and 7, fig. 1 is a schematic view illustrating installation of a filter assembly in the case where a first mode of an air conditioner 100 is a cooling mode; fig. 6 is a schematic installation view of the filter assembly in the case where the first mode of the air conditioner 100 is the heating mode; fig. 7 is a schematic installation view of the filter assembly in the case where the first mode of the air conditioner 100 is the cooling mode or the heating mode.
It will be appreciated that a filter assembly is connected in parallel with the throttle valve 110, wherein the filter assembly includes a filter valve 120 and a filter 130 connected in series. Since the air conditioner 100 flows from the condenser 150 to the evaporator 160 in the cooling mode, when the first mode is the cooling mode, the filter valve 120 is positioned at a side close to the condenser 150, and the filter 130 is positioned at a side close to the evaporator 160, so that when the refrigerant flows from the condenser 150 to the evaporator 160, the refrigerant sequentially passes through the filter valve 120 and the filter 130, and the filter 130 filters the flowing refrigerant to remove impurities. When the cleaning is completed, the filter valve 120 is closed, the refrigerant cannot flow through the filter 130, and the impurities cannot flow out of the filter 130 and the filter valve 120, so that the impurities are collected in the filter 130, and the impurities cannot flow in the air conditioner 100 any more, thereby achieving the effect of self-cleaning of the air conditioner 100.
In the heating mode of the air conditioner 100, the refrigerant flows from the evaporator 160 to the condenser 150. When the first mode is the heating mode, the filter valve 120 is positioned at a side close to the evaporator 160 and the filter 130 is positioned at a side close to the condenser 150, so that when condensation flows from the evaporator 160 to the condenser 150, the refrigerant sequentially passes through the filter valve 120 and the filter 130, ensuring that the filter 130 can absorb impurities and prevent the impurities from flowing out of the filter 130.
In addition, the filter assembly may be provided with a plurality of filter valves 120, for example, the filter 130 is installed between two filter valves 120, and thus, the first mode of the air conditioner 100 may be switched between the cooling mode and the heating mode. When the filter valves 120 at two sides of the filter 130 are closed, the impurities at two sides of the filter 130 cannot flow out, so as to collect the impurities in the refrigerant and achieve the effect of self-cleaning of the air conditioner 100.
Referring to fig. 1, 6 and 7, a second aspect of the embodiment of the present invention provides an air conditioner 100 including a throttle valve 110, a filter assembly and a control processing part 140. In addition, the air conditioner 100 further includes a condenser 150, an evaporator 160, a compressor 170, and a four-way valve 180. The evaporator 160 absorbs heat from the low-pressure liquid refrigerant flowing in, and evaporates the low-pressure liquid refrigerant into a low-pressure gaseous refrigerant. The compressor 170 can extract a low-pressure gaseous refrigerant and compress the low-pressure gaseous refrigerant into a high-pressure gaseous refrigerant. The condenser 150 serves as a condensing end for radiating heat from the refrigerant in the case of the cooling mode, and serves as an evaporating end for absorbing heat from the refrigerant in the case of the heating mode. The four-way valve 180 can adjust the flow direction of the refrigerant, and realize the switching between the cooling mode and the heating mode.
The four-way valve 180 is respectively connected with the evaporator 160, the condenser 150 and the compressor 170, and the throttle valve 110 is respectively connected with the evaporator 160 and the condenser 150, and the throttle valve 110 can change the flow of the refrigerant so as to realize the function of reducing the pressure and the temperature of the refrigerant. The filter assembly is also connected to the evaporator 160 and the condenser 150, respectively, i.e., the throttle valve 110 is connected in parallel with the filter assembly, so that the refrigerant can flow through the throttle valve 110 as well as through the filter assembly. The filter assembly includes a filter 130 and a filter valve 120, and a control processing part 140 is connected to the throttle valve 110 and the filter valve 120, respectively, and the control processing part 140 can control the opening and closing states of the throttle valve 110 and the filter valve 120.
When the self-cleaning signal is received, it is considered that the air conditioner 100 needs to perform the self-cleaning operation, under the control of the control processing unit 140, the throttle valve 110 is closed, the filter valve 120 is opened, and the air conditioner 100 is controlled to operate in the first mode, so that the refrigerant flow sequentially passes through the filter valve 120 and the filter 130 of the filter assembly, impurities in the refrigerant are filtered by the filter 130 until the operation duration of the first mode reaches the preset cleaning duration, and the control processing unit 140 controls the filter valve 120 to be closed and controls the throttle valve 110 to be opened. Therefore, impurities in the refrigerant can be collected in the filter 130 under the condition that the normal operation of the air conditioner 100 is not affected, so that the impurities cannot continuously flow along with the refrigerant to abrade the air conditioner 100, the self-cleaning effect of the refrigerant in the air conditioner 100 is achieved, and the durability of parts of the air conditioner 100 is improved.
It should be noted that, in the case where the first mode is the cooling mode, the filter valve 120 is located at a side near the condenser 150, and the filter 130 is located at a side near the evaporator 160. In the case where the first mode is the heating mode, the filter valve 120 is located at a side near the evaporator 160, and the filter 130 is located at a side near the condenser 150. When the first mode is switchable between a cooling mode and a heating mode, the filter valves 120 are provided at least two, wherein the filter 130 is located between the two filter valves 120.
It will be appreciated that the air conditioner 100 generally uses the compressor 170 to cool, and the cylinder, the bearings and parts of the compressor 170 are made of ferrous metal materials, so that the compressor 170 is easy to produce ferrous impurities due to aging and abrasion of the air conditioner 100. The generated iron impurities flow back and forth along with the circulation of the refrigerant, and rub and collide with other parts of the air conditioner 100 to damage the air conditioner 100, so that the service life of the air conditioner 100 is reduced. Therefore, the magnetic material may be disposed in the filter 130, and when the refrigerant flows through the filter 130, the iron impurities carried by the refrigerant are adsorbed by the magnetic material of the filter 130, and cannot continue to flow along with the refrigerant, so as to reduce the content of the iron impurities in the refrigerant, and realize self-cleaning of the air conditioner 100.
It is understood that the air conditioner 100 may also be provided with a temperature sensor. The temperature sensor may be provided in plurality, including a first temperature sensor for measuring an outdoor ambient temperature of an environment in which the air conditioner 100 is located, a second temperature sensor capable of acquiring an indoor ambient temperature of the environment in which the air conditioner 100 is located, and a third temperature sensor capable of measuring an exhaust temperature of the compressor 170.
Referring to fig. 8, a third aspect embodiment of the present invention provides an operation control apparatus 800 comprising at least one control processor 810 and a memory 820 for communication connection with the at least one control processor 810; the control processor 810 and the memory 820 may be connected by a bus or otherwise, an example of which is shown in fig. 8, the memory 820 storing instructions executable by the at least one control processor 810 to enable the at least one control processor 810 to perform the self-cleaning method of the air conditioner according to the embodiment of the first aspect as described above, for example, the method steps S100 to S300 in fig. 2, the method steps S400 to S500 in fig. 3, the method steps S600 to S700 in fig. 4, and the method steps S110 to S130 in fig. 5, which are described above. Because the control processing component can carry out self-cleaning operation according to the self-cleaning signal, when the control processing component receives the self-cleaning signal, the control processing component controls the throttle valve to be closed, controls the filter valve to be opened, and controls the air conditioner to operate in a first mode, so that the refrigerant flow sequentially passes through the filter valve and the filter of the filter assembly, impurities in the refrigerant are filtered by the filter until the operation duration of the first mode reaches the preset cleaning duration, and the control processing component controls the filter valve to be closed and controls the throttle valve to be opened. Therefore, impurities in the refrigerant can be collected in the filter under the condition that the normal operation of the air conditioner is not affected, so that the impurities cannot continuously flow along with the refrigerant to abrade the air conditioner, the self-cleaning effect of the refrigerant in the air conditioner is achieved, and the durability of parts of the air conditioner is improved.
A fourth aspect embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that can be used to cause a computer to perform the self-cleaning method of an air conditioner according to the first aspect embodiment as described above, for example, performing the method steps S100 to S300 in fig. 2, the method steps S400 to S500 in fig. 3, the method steps S600 to S700 in fig. 4, and the method steps S110 to S130 in fig. 5 described above. Under the condition that the control processing component receives the self-cleaning signal, the control processing component controls the throttle valve to be closed, controls the filter valve to be opened, and controls the air conditioner to operate in a first mode, so that the refrigerant flow sequentially passes through the filter valve and the filter of the filter assembly, impurities in the refrigerant are filtered by the filter until the operation duration of the first mode reaches the preset cleaning duration, and the control processing component controls the filter valve to be closed and controls the throttle valve to be opened. Therefore, the filter valve and the filter are connected in parallel with the throttle valve, and the self-cleaning method of the air conditioner is matched, so that impurities in the refrigerant can be filtered out under the condition that the normal running state of the air conditioner is not affected, the self-cleaning effect of the air conditioner is achieved, and the air conditioner is prevented from being damaged due to the fact that the impurities interfere with the running of the air conditioner.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media or non-transitory media and communication media or transitory media. The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk DVD or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. A self-cleaning method of an air conditioner, characterized in that the air conditioner comprises a throttle valve connected between an evaporator and a condenser, a filter assembly connected in parallel with the throttle valve, the filter assembly comprising a filter and a filter valve;
the self-cleaning method of the air conditioner comprises the following steps:
generating a self-cleaning signal in response to the test operating parameter reaching a preset cleaning condition;
closing the throttle valve and opening the filter valve in response to the self-cleaning signal;
controlling the air conditioner to operate in a preset first mode;
when the operation time reaches the preset cleaning time, closing the filter valve and opening the throttle valve;
wherein the test operating parameters include a test indoor temperature, a test outdoor temperature, and a test exhaust temperature; the preset cleaning condition is that the temperature in the test room is smaller than or equal to the temperature in the calibration room, and the difference between the temperature of the test exhaust gas and the temperature outside the test room is larger than or equal to the difference between the temperature of the calibration exhaust gas and the temperature outside the calibration room.
2. The self-cleaning method of an air conditioner according to claim 1, wherein, in a case where the self-cleaning signal is obtained by first turning on the air conditioner, when the operation time period reaches a preset cleaning time period, closing the filter valve, and opening the throttle valve, comprises:
controlling the air conditioner to operate in the first mode;
when the operation time length reaches the preset calibration time length, acquiring the current indoor temperature as the calibration indoor temperature, acquiring the current outdoor temperature as the calibration outdoor temperature, and acquiring the current exhaust temperature as the calibration exhaust temperature.
3. The self-cleaning method of an air conditioner according to claim 1, wherein:
controlling the air conditioner to operate in the first mode under the condition that the throttle valve is opened and the filter valve is closed;
when the operation time length reaches the preset test time length, acquiring the current indoor temperature as the test indoor temperature, acquiring the current outdoor temperature as the test outdoor temperature, and acquiring the current exhaust temperature as the test exhaust temperature.
4. The self-cleaning method of an air conditioner according to claim 1, wherein the closing the throttle valve and opening the filter valve in response to a self-cleaning signal includes:
Closing the filter valve and opening the throttle valve in response to a self-cleaning signal;
controlling the air conditioner to operate in a preset second mode;
and when the operation time reaches the preset dredging time, closing the throttle valve and opening the filter valve.
5. The self-cleaning method of an air conditioner according to claim 4, wherein when the first mode is a cooling mode, the second mode is a heating mode; when the first mode is a heating mode, the second mode is a cooling mode.
6. An air conditioner, comprising:
a throttle valve connected between the evaporator and the condenser;
the filter assembly is connected with the throttle valve in parallel and comprises a filter and a filter valve;
control processing means, connected to said throttle valve and said filter valve, respectively, for executing the self-cleaning method of an air conditioner according to any one of claims 1 to 5.
7. An air conditioner according to claim 6, wherein a magnetic material for adsorbing impurities is provided in the filter.
8. The air conditioner of claim 6, further comprising a temperature sensing part for measuring an indoor temperature, an outdoor temperature, and an exhaust temperature.
9. An operation control device comprising at least one control processor and a memory for communication with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the self-cleaning method of the air conditioner as set forth in any one of claims 1 to 5.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the self-cleaning method of an air conditioner according to any one of claims 1 to 5.
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| CN115013939A (en) | 2022-09-06 |
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