CN111780369B - Method and device for high-temperature sterilization control of air conditioner and air conditioner - Google Patents
Method and device for high-temperature sterilization control of air conditioner and air conditioner Download PDFInfo
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- CN111780369B CN111780369B CN202010613215.6A CN202010613215A CN111780369B CN 111780369 B CN111780369 B CN 111780369B CN 202010613215 A CN202010613215 A CN 202010613215A CN 111780369 B CN111780369 B CN 111780369B
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 103
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 238000004378 air conditioning Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 description 27
- 230000006870 function Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 238000005070 sampling Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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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
- F24F11/67—Switching between heating and cooling modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent air conditioners and discloses a method and a device for controlling high-temperature sterilization of an air conditioner and the air conditioner. The method comprises the following steps: under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be finished, acquiring the current coil temperature of the indoor unit; determining a current valve adjustment opening degree of an expansion valve of the air conditioner according to the current coil temperature, the previous coil temperature and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃; and controlling the air conditioner to perform heating operation in a high-temperature sterilization stage according to the opening degree of the current valve. Therefore, the problem that the temperature of the coil pipe of the indoor unit cannot reach the preset high temperature caused by the installation of the long matching pipe of the air conditioner is avoided, and the application range of the high-temperature sterilization function of the air conditioner is expanded.
Description
Technical Field
The application relates to the technical field of intelligent air conditioners, in particular to a method and a device for controlling high-temperature sterilization of an air conditioner and the air conditioner.
Background
The temperature of 56 ℃ is the temperature for inactivating the virus, and the temperature of 56 ℃ is the safe temperature for self-cleaning air-conditioning high-temperature sterilization. The 56 ℃ high temperature sterilization process can comprise: when the air conditioner is self-cleaned, the surface of an evaporator coil can be cooled to frost at a high speed, particles such as bacteria, dust and the like are peeled off, then the temperature is increased at a high speed (above 56 ℃) to defrost, the frost is changed into water to wash away the bacteria and the dust, and the dust removal rate of the air conditioner can reach 99 percent in the process; and the surface of the air-conditioning evaporator coil is provided with the anionic silver ion antibacterial coating, so that the breeding of bacteria is effectively inhibited, and the sterilization rate can reach 99%.
At present, the 56 ℃ high-temperature sterilization function of the air conditioner can set the exhaust temperature of a target compressor, and the opening degree of a whole valve is adjusted according to the difference between the acquired current exhaust temperature of the compressor and the set target exhaust temperature of the compressor, so that the aim that the temperature of an indoor coil is above 56 ℃ is fulfilled. However, when the control method is limited by the length of the connecting pipe during the installation of the air conditioner, the standard length (usually 3-5m) is feasible, and when the long pipe has large pressure drop, the compressor exhaust temperature reaches the set target compressor exhaust temperature, but the indoor unit coil temperature does not reach 56 ℃, so that the sterilization requirement cannot be met.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for air conditioner high-temperature sterilization control and an air conditioner, and aims to solve the technical problem that the accuracy of air conditioner high-temperature sterilization is not high.
In some embodiments, the method comprises:
under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be finished, acquiring the current coil temperature of the indoor unit;
determining a current valve adjustment opening degree of an expansion valve of the air conditioner according to the current coil temperature, the previous coil temperature and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃;
and controlling the air conditioner to perform heating operation in a high-temperature sterilization stage according to the opening degree of the current valve.
In some embodiments, the apparatus comprises:
the temperature acquisition module is configured to acquire the current coil temperature of the indoor unit of the air conditioner under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be completed;
an opening determination module configured to determine a current valve adjustment opening of an expansion valve of the air conditioner according to the current coil temperature, a previous coil temperature, and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃;
and the heating control module is configured to control the air conditioner to perform heating operation in a high-temperature sterilization stage according to the current valve adjusting opening degree.
In some embodiments, the apparatus for air conditioner high temperature sterilization control includes a processor and a memory storing program instructions, the processor being configured to execute the above-mentioned method for air conditioner high temperature sterilization control when executing the program instructions.
In some embodiments, the air conditioner includes: the device for controlling the high-temperature sterilization of the air conditioner is disclosed.
The method and the device for controlling high-temperature sterilization of the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
in the high-temperature sterilization stage of the air conditioner, the valve opening degree of the expansion valve is adjusted through the difference value between the actual coil temperature and the preset target coil temperature (greater than or equal to 56 ℃), so that the problem that the coil temperature of an indoor unit cannot reach the preset high temperature when the long tubing is installed on the air conditioner is avoided, the application range of the high-temperature sterilization function of the air conditioner is expanded, the valve opening degree is directly adjusted according to the temperature of the indoor coil, the adjusting efficiency is higher, and the accuracy of the high-temperature sterilization of the air conditioner is further improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic flow chart diagram illustrating a method for controlling high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart of a control method for high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart diagram illustrating a method for controlling high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a high-temperature sterilization control device for an air conditioner according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a high-temperature sterilization control device for an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a high-temperature sterilization control device for an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
At present, the air conditioner has a high-temperature self-cleaning function, when an instruction or other modes are received to carry out a high-temperature self-cleaning mode, the air conditioner can be cleaned at a high temperature in three stages of self-cleaning, high-temperature sterilization and defrosting, dirt on an indoor heat exchanger of the air conditioner can be removed, and high-temperature sterilization can be carried out on germs on the surface of the indoor heat exchanger. In the embodiment of the disclosure, when the self-cleaning operation of the indoor unit of the air conditioner is completed, and the air conditioner enters the heating operation in the high-temperature sterilization stage, the valve opening degree of the expansion valve is adjusted through the difference value between the actual coil temperature and the preset target coil temperature (greater than or equal to 56 ℃), so that the problem that the coil temperature of the indoor unit caused by the installation of the long tubing of the air conditioner cannot reach the preset high temperature is avoided, the application range of the high-temperature sterilization function of the air conditioner is expanded, in addition, the valve opening degree is directly adjusted according to the temperature of the indoor coil, the adjusting efficiency is higher, and the accuracy of the high-temperature sterilization of the air conditioner is further improved.
Fig. 1 is a schematic flowchart of a control method for high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, the process for the air conditioner high temperature sterilization control includes:
step 101: and under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be completed, acquiring the current coil temperature of the indoor unit.
The air conditioner can be provided with a high-temperature self-cleaning function, so that after receiving a high-temperature self-cleaning instruction sent by a user through a remote controller or a terminal or after receiving the high-temperature self-cleaning instruction through network connection, the air conditioner can be controlled to perform high-temperature cleaning operation on the indoor unit.
Firstly, the air conditioner carries out self-cleaning operation of an indoor unit, and dust and impurities are stripped and taken away from the surface of a heat exchanger through condensation, frosting and defrosting by controlling a compressor, a throttling device, a fan and the like.
And then, under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be completed, the heating mode in the high-temperature sterilization stage can be entered. In some embodiments, when the compressor down time reaches a down threshold after defrosting, for example: and (5) determining that the self-cleaning operation of the indoor unit of the air conditioner is finished after 2 minutes. The four-way valve can be switched on, and the heating mode in the high-temperature sterilization stage is entered.
In a heating mode in a high-temperature sterilization stage, the temperature of the coil pipe of the indoor unit can be collected in real time or at regular time, and the obtained temperature of the coil pipe of the indoor unit every time is the current temperature of the coil pipe.
Step 102: determining the current valve adjusting opening degree of an expansion valve of the air conditioner according to the current coil temperature, the previous coil temperature and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃.
The coil temperature of the indoor unit of the air conditioner can reach more than 56 ℃, so that the bacteria breeding can be effectively inhibited, therefore, in the embodiment of the disclosure, the preset target coil temperature is directly configured to be 56 ℃ or more, for example: 57 ℃, 58 ℃ or 60 ℃ and the like.
As such, in some embodiments, determining a current valve trim opening degree of an expansion valve of an air conditioner may include: obtaining a current temperature difference between the current coil temperature and a preset target coil temperature; obtaining the previous temperature difference between the previous coil temperature and the preset coil temperature; and determining the current valve adjusting opening corresponding to the current temperature difference and the previous temperature difference according to the corresponding relation between the stored temperature difference and the valve adjusting opening of the expansion valve.
For example: the current coil temperature is Tp0, and the current coil temperature is subtracted from the preset target coil temperature Tp to obtain a current temperature difference delta Tp; meanwhile, during the upper period collection, the previous coil temperature Tp0 ' is obtained, the previous coil temperature Tp and Tp are correspondingly subtracted to obtain the previous temperature difference delta Tp ', and finally, the corresponding current valve adjustment opening degree can be determined according to the corresponding relation between the delta Tp and the delta Tp ' and the valve adjustment opening degree.
Table 1 shows a correspondence relationship between a temperature difference and a valve adjustment opening degree of an expansion valve according to an embodiment of the present disclosure.
TABLE 1
In this embodiment, the current coil temperature, the previous coil temperature, and the preset target coil temperature are all integer values, so that if the current temperature difference Δ Tp is 1 and the previous temperature difference Δ Tp 'is 2, the corresponding current valve adjustment opening is determined to be X76 according to table 1, and if Δ Tp is-2 and the previous temperature difference Δ Tp' is 1, the corresponding current valve adjustment opening is determined to be X45 according to table 1. The specific valve adjustment opening degrees in table 1 may be partially the same and may be stored in advance. The larger the absolute value of Δ Tp, Δ Tp', the larger the corresponding valve adjustment opening, for example: Δ Tp ═ 4, Δ Tp' ═ 3 may correspond to a value of 70 steps for X21, and Δ Tp ═ 1, Δ Tp ═ 0 may correspond to a value of 3 steps for X74.
Step 103: and adjusting the opening according to the current valve, and controlling the air conditioner to perform heating operation in a high-temperature sterilization stage.
And determining the opening degree of the current valve, namely adjusting the expansion valve of the air conditioner according to the opening degree of the current valve in the heating operation of the high-temperature sterilization stage of the air conditioner. For example: the current valve adjustment opening degree is X33, the corresponding value may be 10 steps, and the adjustment direction of the expansion valve is related to the plus or minus of Δ Tp, so the expansion valve of the air conditioner can be adjusted according to the current valve adjustment opening degree and the plus or minus of Δ Tp. The expansion valve of the air conditioner can be adjusted once by sampling the coil temperature of the indoor unit once, and finally, the coil temperature of the indoor unit is greater than or equal to 56 ℃ when the air conditioner is in heating operation, so that the aim of high-temperature sterilization is fulfilled.
It can be seen that, in this embodiment, in the high temperature degerming stage of air conditioner, through the difference between actual coil pipe temperature and the preset target coil pipe temperature (be greater than or equal to 56 ℃), the valve opening of adjustment expansion valve, like this, avoided the problem that the indoor set coil pipe temperature that arouses when installing long piping because of the air conditioner can not reach preset high temperature, the range of application of the high temperature degerming function of air conditioner has been enlarged, and, directly according to indoor coil pipe temperature regulating valve opening, the regulating efficiency is higher, the rate of accuracy of the high temperature degerming of air conditioner has further been improved.
Of course, the components of the air conditioner may include: when the air conditioner is controlled to perform heating operation in a high-temperature sterilization stage, one, two or more of the devices can be controlled, so that the temperature of the coil pipe of the indoor unit can reach 56 ℃ or above more quickly or accurately.
In some embodiments, controlling the air conditioner to perform the heating operation in the high temperature sterilization stage further includes: and controlling a fan of the indoor unit to operate at a first set air speed. Or, controlling a compressor of the air conditioner to operate at the first set frequency. Or controlling a fan of an outdoor unit of the air conditioner to operate at a second set wind speed, wherein the second set wind speed is greater than the first set wind speed. Or, controlling the fan of the indoor unit to operate at a first set wind speed, and controlling the compressor of the air conditioner to operate at a first set frequency. Or controlling the fan of the indoor unit to operate at the first set air speed, and controlling the fan of the outdoor unit of the air conditioner to operate at the second set air speed. Or, controlling a compressor of the air conditioner to operate at a first set frequency, and controlling a fan of an outdoor unit of the air conditioner to operate at a second set wind speed. Or, controlling the fan of the indoor unit to operate at a first set wind speed, controlling the compressor of the air conditioner to operate at a first set frequency, and controlling the fan of the outdoor unit of the air conditioner to operate at a second set wind speed.
For example: the method includes configuring a first set wind speed, a second set wind speed and a first set frequency in advance, wherein the first set wind speed can be the lowest wind speed of the fan, i.e. corresponding to a weak wind speed level S1, the second set wind speed is greater than the first set wind speed and can be a set wind speed level S2, and the first set frequency can be a set frequency F, so that the fan of the indoor unit is controlled to operate at S1, the compressor is controlled to operate at F, and the fan of the outdoor unit is controlled to operate at S2.
The high temperature self-cleaning mode of the air conditioner includes: self-cleaning, high-temperature sterilization, and the three stage of defrosting, therefore, when carrying out the operation of heating in high-temperature sterilization stage, still need to judge whether the operation process of heating is accomplished, in some embodiments, control the air conditioner and carry out after the operation of heating in high-temperature sterilization stage, still include: updating the recorded duration time when the current coil temperature is greater than or equal to the preset target coil temperature; and determining that the heating operation of the high-temperature sterilization stage of the air conditioner is finished under the condition that the duration time is longer than the set time.
The recorded duration may be updated each time the obtained current coil temperature is greater than or equal to the preset target coil temperature, for example: and adding a sampling period to the saved duration to obtain a new duration and saving the new duration. Then, the updated duration is longer than the set time, for example, 20 minutes, 25 minutes, or 30 minutes, and it is determined that the heating operation in the high-temperature sterilization stage of the air conditioner is completed. It can be seen that the temperature of the coil pipe of the indoor unit is greater than or equal to the preset target temperature of the coil pipe, and the heating operation in the high-temperature sterilization stage can be completed only after a period of time, so that the high-temperature sterilization in the sufficient time is guaranteed, and the high-temperature sterilization capability of the air conditioner is guaranteed.
Certainly, when the current coil temperature obtained by sampling is less than the preset target coil temperature, the recorded duration time needs to be cleared, and the continuous high-temperature process is ensured. And, after controlling the air conditioner to perform the heating operation in the high temperature sterilization stage, the method further comprises: need to preserve current coil pipe temperature for the last coil pipe temperature in turn, like this, the next sampling obtains the coil pipe temperature and just can obtain the temperature difference of the last time for current coil pipe temperature to valve adjustment's continuity and stability have been ensured.
The following operational procedures are integrated into the specific embodiment to illustrate the air-conditioning high-temperature sterilization control process provided by the embodiment of the present invention.
In this embodiment, the air conditioner stores the correspondence between the temperature difference and the valve adjustment opening degree of the expansion valve shown in table 1, and is configured in advance with a preset target coil temperature of 57 ℃ and a set time of 40 minutes.
Fig. 2 is a schematic flowchart of a control method for high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure. Referring to fig. 2, the process for the air conditioner high temperature sterilization control includes:
step 201: is the self-cleaning operation of the indoor unit of the air conditioner completed? If yes, go to step 202, otherwise, go back to step 201.
Step 202: and sampling at fixed time to obtain the current coil temperature of the indoor unit.
Step 203: a current temperature difference Δ Tp between the current coil temperature Tp0 and the preset target coil temperature Tp is obtained.
Step 204: the previous temperature difference Δ Tp 'between the previous coil temperature Tp 0' and the preset target coil temperature Tp is obtained.
Step 205: the current valve adjustment opening corresponding to the current temperature difference Δ Tp and the previous temperature difference Δ Tp' is determined from the correspondence shown in table 1.
Step 206: and adjusting the opening according to the current valve, and controlling the air conditioner to perform heating operation in a high-temperature sterilization stage.
For example: and adjusting the opening degree of the expansion valve by 10 steps according to the current valve adjusting opening degree.
Step 207: is the current coil temperature greater than or equal to 57 ℃? If so, go to step 208, otherwise, go to step 209.
Step 208: and adding the recorded duration time to the sampling interval time to obtain and store the updated duration time. And proceeds to step 210.
Step 209: the duration of the recording is cleared and the process goes to step 210.
Step 210: is the duration determined to be greater than or equal to 40 minutes? If so, go to step 211, otherwise, go to step 212.
Step 211: and determining that the heating operation of the high-temperature sterilization stage of the air conditioner is finished.
Step 212: the current coil temperature is changed to the previous coil temperature for storage, and the process returns to step 202.
It can be seen that, in the embodiment of the present disclosure, in the high temperature sterilization stage of the air conditioner, the valve opening degree of the expansion valve is adjusted through the difference between the actual coil temperature and 57 ℃, thus, the problem that the coil temperature of the indoor unit, which is caused when the air conditioner is installed with the long tubing, does not reach the preset high temperature of 57 ℃ is avoided, the application range of the high temperature sterilization function of the air conditioner is expanded, and the valve opening degree is directly adjusted according to the indoor coil temperature, the adjustment efficiency is higher, and the accuracy of the high temperature sterilization of the air conditioner is further improved.
In this embodiment, the air conditioner stores the correspondence between the temperature difference and the valve adjustment opening degree of the expansion valve as shown in table 1, and is configured with a preset target coil temperature of 58 ℃, a set time of 30 minutes, a first set wind speed S1, a second set wind speed S2, and a first set frequency F in advance.
Fig. 3 is a schematic flowchart of a control method for high-temperature sterilization of an air conditioner according to an embodiment of the present disclosure. Referring to fig. 3, the process for the air conditioner high temperature sterilization control includes:
step 301: is the self-cleaning operation of the indoor unit of the air conditioner completed? If yes, go to step 302, otherwise, go back to step 301.
Step 302: and sampling at fixed time to obtain the current coil temperature Tp0 of the indoor unit.
Step 303: and determining the current valve adjusting opening degree of the air conditioner expansion valve according to the current coil temperature Tp0, the preset target coil temperature of 58 ℃, the previous coil temperature Tp 0' and the corresponding relation shown in the table 1.
Step 304: and respectively controlling an expansion valve of the air conditioner, a fan of an indoor unit, a compressor and a fan of an outdoor unit to operate according to the current valve adjusting opening degree, the first set air speed S, the first set frequency F1 and the second set air speed F2, so as to realize the heating operation in the high-temperature sterilization stage.
Step 305: is the current coil temperature determined to be greater than or equal to 58 ℃? If yes, go to step 306, otherwise go to step 307.
Step 306: the recorded duration is added to the sampling interval time to obtain an updated duration and saved, and the process goes to step 308.
Step 307: the duration of the recording is cleared and the process proceeds to step 308.
Step 308: is the duration determined to be greater than or equal to 30 minutes? If so, go to step 309, otherwise, go to step 310.
Step 309: and determining that the heating operation of the high-temperature sterilization stage of the air conditioner is finished.
Step 310: and the current coil temperature is changed to the previous coil temperature for storage, and the step 302 is returned.
It can be seen that, in the embodiment of the present disclosure, in the high temperature sterilization stage of the air conditioner, the valve opening degree of the expansion valve is adjusted through the difference between the actual coil temperature and 58 ℃, so that the problem that the coil temperature of the indoor unit, which is caused when the air conditioner is installed with a long pipe, does not reach the preset high temperature of 58 ℃ is avoided, the application range of the high temperature sterilization function of the air conditioner is expanded, and the fan and the compressor are operated according to the frequency and the set speed directly according to the opening degree of the indoor coil temperature adjusting valve, so that the adjusting efficiency is improved, and the accuracy of the high temperature sterilization of the air conditioner is further improved.
According to the above-described process for the high-temperature sterilization control of the air conditioner, a device for the high-temperature sterilization control of the air conditioner can be constructed.
Fig. 4 is a schematic structural diagram of a high-temperature sterilization control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 4, the high temperature sterilization control apparatus for an air conditioner includes: a temperature acquisition module 410, an opening determination module 420, and a heating control module 430.
And the temperature obtaining module 410 is configured to obtain the current coil temperature of the indoor unit under the condition that the self-cleaning operation of the air conditioner indoor unit is determined to be completed.
An opening determination module 420 configured to determine a current valve adjustment opening of an expansion valve of the air conditioner according to the current coil temperature, the previous coil temperature, and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃.
And a heating control module 430 configured to control the air conditioner to perform a heating operation in a high temperature sterilization stage according to the current valve adjustment opening.
In some embodiments, the opening determination module 420 is configured to obtain a current temperature difference between the current coil temperature and a preset target coil temperature; obtaining a previous temperature difference between a previous coil temperature and a preset target coil temperature; and determining the current valve adjusting opening corresponding to the current temperature difference and the previous temperature difference according to the corresponding relation between the stored temperature difference and the valve adjusting opening of the expansion valve.
In some embodiments, the heating control module 430 is further configured to control a fan of the indoor unit to operate at a first set wind speed.
In some embodiments, the heating control module 430 is further configured to control a compressor of the air conditioner to operate at a first set frequency.
In some embodiments, the heating control module 430 is further configured to control a fan of an outdoor unit of the air conditioner to operate at a second set wind speed, wherein the second set wind speed is greater than the first set wind speed.
In some embodiments, further comprising: and the time updating module is configured to update the recorded duration when the current coil temperature is greater than or equal to the preset target coil temperature.
And the time zero clearing module is configured to zero the recorded duration time when the current coil temperature is less than the preset target coil temperature.
And the completion determining module is configured to determine that the heating operation of the high-temperature sterilization phase of the air conditioner is completed if the duration is longer than the set time.
In some embodiments, further comprising: and the temperature alternation module is configured to alter the current coil temperature into the previous coil temperature for storage.
The air conditioner high temperature sterilization control process of the apparatus for air conditioner high temperature sterilization control applied to the air conditioner is described in detail below.
In this embodiment, the air conditioner stores the correspondence between the temperature difference and the valve adjustment opening degree of the expansion valve as shown in table 1, and is configured with a preset target coil temperature of 58 ℃, a set time of 30 minutes, a first set wind speed S1, a second set wind speed S2, and a first set frequency F in advance.
Fig. 5 is a schematic structural diagram of a high-temperature sterilization control device for an air conditioner according to an embodiment of the present disclosure. As shown in fig. 5, the high temperature sterilization control apparatus for air conditioner includes: a temperature acquisition module 410, an opening determination module 420, a heating control module 430, a time update module 440, a time clear module 450, a completion determination module 460, and a temperature override module 470.
Under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be finished, sampling can be performed at regular time, and the temperature obtaining module 410 obtains the current coil temperature Tp0 of the indoor unit, so that the opening determining module 420 can determine the current valve adjustment opening of the air conditioning expansion valve according to the current coil temperature Tp0, the preset target coil temperature of 58 ℃, the previous coil temperature of Tp 0' and the corresponding relation shown in table 1. The heating control module 430 can control the expansion valve of the air conditioner, the fan of the indoor unit, the compressor and the fan of the outdoor unit to operate according to the current valve opening degree, the first set air speed S, the first set frequency F1 and the second set air speed F2, respectively, so as to realize the heating operation in the high temperature sterilization stage. Thus, during the heating operation in the high-temperature sterilization stage, if the current coil temperature is greater than or equal to 58 ℃, the time update module 440 may add the sampling interval time to the recorded duration time to obtain the updated duration time, and store the updated duration time, otherwise, the time clear module 450 may clear the recorded duration time.
Thus, the completion determination module 460 may determine that the heating operation of the high temperature sterilization stage of the air conditioner is completed when the duration is greater than or equal to 30 minutes. Of course, the temperature changing module 470 needs to change the current coil temperature to the previous coil temperature for storage, so as to ensure the continuity and stability of the valve opening adjustment.
It can be seen that, in this embodiment, in the high-temperature sterilization stage of the air conditioner, the device for controlling high-temperature sterilization of the air conditioner adjusts the valve opening of the expansion valve through the difference between the actual coil temperature and the preset target coil temperature (greater than or equal to 56 ℃), thus, the problem that the coil temperature of the indoor unit caused by the installation of the long piping by the air conditioner cannot reach the preset high temperature is avoided, the application range of the high-temperature sterilization function of the air conditioner is expanded, and the fan and the compressor are operated according to the set speed and the opening of the temperature adjusting valve of the indoor coil directly, thus, the adjusting efficiency is improved, and the accuracy of the high-temperature sterilization of the air conditioner is further improved.
The embodiment of the present disclosure provides a device for controlling high-temperature sterilization of an air conditioner, the structure of which is shown in fig. 6, and the device comprises:
a processor (processor)100 and a memory (memory)101, and may further include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for air conditioner high temperature sterilization control of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for air conditioner high temperature sterilization control in the above-described method embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal air conditioner, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for controlling high-temperature sterilization of the air conditioner.
The disclosed embodiments provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for air conditioner high temperature sterilization control.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described method for air conditioner high temperature sterilization control.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions for enabling a computer air conditioner (which may be a personal computer, a server, or a network air conditioner, etc.) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: 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, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or air conditioner that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, air conditioners, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (9)
1. A method for high-temperature sterilization control of an air conditioner is characterized by comprising the following steps:
under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be finished, acquiring the current coil temperature of the indoor unit;
determining a current valve adjustment opening degree of an expansion valve of the air conditioner according to the current coil temperature, the previous coil temperature and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃;
controlling the air conditioner to perform heating operation in a high-temperature sterilization stage according to the opening degree of the current valve;
wherein the determining of the current valve adjustment opening degree of the expansion valve of the air conditioner includes:
obtaining a current temperature difference between the current coil temperature and the preset target coil temperature;
obtaining the previous temperature difference between the previous coil temperature and the preset target coil temperature;
determining a current valve adjustment opening corresponding to the current temperature difference and the previous temperature difference according to a corresponding relation between the stored temperature difference and a valve adjustment opening of an expansion valve;
the adjustment direction of the expansion valve is related to the positive and negative of the current temperature difference, and the larger the absolute value of the current temperature difference and the previous temperature difference is, the larger the adjustment opening degree of the expansion valve is.
2. The method as claimed in claim 1, wherein the controlling the air conditioner to perform the heating operation of the high temperature sterilization stage further comprises:
and controlling a fan of the indoor unit to operate at a first set air speed.
3. The method as claimed in claim 1 or 2, wherein the controlling the air conditioner to perform the heating operation of the high temperature sterilization stage further comprises:
controlling a compressor of the air conditioner to operate at a first set frequency.
4. The method as claimed in claim 3, wherein the controlling the air conditioner to perform the heating operation of the high temperature sterilization stage further comprises:
and controlling a fan of an outdoor unit of the air conditioner to operate at a second set wind speed, wherein the second set wind speed is greater than the first set wind speed.
5. The method as claimed in claim 1, 2 or 4, wherein after controlling the air conditioner to perform the heating operation in the high temperature sterilization stage, the method further comprises:
updating the recorded duration time when the current coil temperature is greater than or equal to the preset target coil temperature;
and determining that the heating operation of the high-temperature sterilization stage of the air conditioner is finished under the condition that the duration is longer than the set time.
6. The method as claimed in claim 5, wherein after controlling the air conditioner to perform the heating operation in the high temperature sterilization stage, the method further comprises:
the current coil temperature is changed into the previous coil temperature for storage;
and clearing the recorded duration time when the current coil temperature is less than the preset target coil temperature.
7. An apparatus for air conditioning high temperature sterilization control, using the method of claim 1, comprising:
the temperature acquisition module is configured to acquire the current coil temperature of the indoor unit of the air conditioner under the condition that the self-cleaning operation of the indoor unit of the air conditioner is determined to be completed;
an opening determination module configured to determine a current valve adjustment opening of an expansion valve of the air conditioner according to the current coil temperature, a previous coil temperature, and a preset target coil temperature, wherein the preset target coil temperature is greater than or equal to 56 ℃;
and the heating control module is configured to control the air conditioner to perform heating operation in a high-temperature sterilization stage according to the current valve adjusting opening degree.
8. An apparatus for air conditioning high temperature sterilization control, the apparatus comprising a processor and a memory having stored thereon program instructions, wherein the processor is configured to perform the method for air conditioning high temperature sterilization control of any of claims 1 to 6 when executing the program instructions.
9. An air conditioner, comprising: the apparatus for high temperature sterilization control of air conditioner as claimed in claim 7 or 8.
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| JPH07234023A (en) * | 1994-02-18 | 1995-09-05 | Fujitsu General Ltd | Method and apparatus for controlling air conditioner |
| CN103398446B (en) * | 2013-07-11 | 2015-09-30 | 四川长虹电器股份有限公司 | A kind of method improving air-conditioning heating refrigeration |
| CN104848738B (en) * | 2015-04-22 | 2019-03-19 | 珠海格力电器股份有限公司 | Cleaning method and device for indoor heat exchanger of air conditioner |
| CN105157172B (en) * | 2015-08-31 | 2018-03-30 | Tcl空调器(中山)有限公司 | The control method and device of air conditioner |
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| CN108826622B (en) * | 2018-09-20 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Air conditioner mildew-proof control method and device and air conditioner |
| CN110529973B (en) * | 2019-09-10 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Self-cleaning control method and device of air conditioner and air conditioner |
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