CN110864422B - Control method and device of fresh air conditioner, fresh air conditioner and storage medium - Google Patents
Control method and device of fresh air conditioner, fresh air conditioner and storage medium Download PDFInfo
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- CN110864422B CN110864422B CN201911212592.2A CN201911212592A CN110864422B CN 110864422 B CN110864422 B CN 110864422B CN 201911212592 A CN201911212592 A CN 201911212592A CN 110864422 B CN110864422 B CN 110864422B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- 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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/12—Temperature of the outside air
Abstract
The invention provides a control method and device of a fresh air conditioner, the fresh air conditioner and a storage medium, and relates to the technical field of air conditioners. The control method of the fresh air conditioner comprises the following steps: acquiring outdoor environment temperature and air outlet temperature; comparing the outdoor environment temperature with an outdoor set temperature and an indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature; and controlling the running states of the compressor and the electronic expansion valve according to the comparison result. According to the technical scheme, different control schemes are determined according to the temperature intervals of the outdoor environment temperature and the outlet air temperature, and the running states of the compressor and the electronic expansion valve are controlled, so that the comfort requirements in different seasons are met.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of a fresh air conditioner, the fresh air conditioner and a storage medium.
Background
Because outdoor ambient temperature is different in different seasons, the refrigeration demand of new trend air conditioner needs to change according to ambient temperature adaptability, and nevertheless current air conditioner mainly controls the air conditioner operation according to the air-out temperature, and control scheme is simple and can not reach accurate temperature control effect, causes the air conditioner travelling comfort relatively poor.
Disclosure of Invention
The invention solves the problem that the existing fresh air conditioner cannot achieve an accurate temperature control effect, so that the comfort of the air conditioner is poor.
In order to solve the above problems, the present invention provides a control method for a fresh air conditioner, comprising: acquiring outdoor environment temperature and air outlet temperature; comparing the outdoor environment temperature with an outdoor set temperature and an indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature; and controlling the running states of the compressor and the electronic expansion valve according to the comparison result.
The control method of the fresh air conditioner determines different control schemes according to the temperature intervals of the outdoor environment temperature and the outlet air temperature, and controls the running states of the compressor and the electronic expansion valve, thereby meeting the comfort requirements in different seasons.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigeration mode, when the outdoor environment temperature is greater than or equal to a first outdoor set temperature, comparing the outlet air temperature with a first indoor set temperature; when the outlet air temperature is less than or equal to the first indoor set temperature, controlling the compressor to operate; and when the outlet air temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
According to the control method of the fresh air conditioner, the fresh air exchange is realized and the comfort is improved on the premise of meeting the requirement of the indoor environment temperature by comparing the air outlet temperature with the first indoor set temperature when the outdoor environment temperature is greater than or equal to the first outdoor set temperature and controlling the running state of the compressor according to the temperature interval where the air outlet temperature is located.
Further, when the outlet air temperature is less than or equal to the first indoor set temperature, the compressor is controlled to operate, and the method specifically further comprises the following steps: and when the indoor environment temperature is less than or equal to the difference value between the first indoor set temperature and the preset temperature value, controlling the compressor and the inner fan to stop.
According to the control method of the fresh air conditioner, the compressor and the inner fan are stopped when the indoor environment temperature meets the condition, so that the indoor environment temperature requirement is met, and the indoor environment comfort level is improved.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigeration mode, comparing the indoor environment temperature with a first air outlet set temperature when the outdoor environment temperature is less than a first outdoor set temperature and greater than a second outdoor set temperature; when the indoor environment temperature is lower than or equal to the first outlet air set temperature, controlling the compressor to be closed and the inner fan to return air; and when the indoor environment temperature is higher than the first outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the first outdoor set temperature and higher than the second outdoor set temperature, the running states of the compressor and the electronic expansion valve are controlled according to the temperature interval of the indoor environment temperature, so that the indoor environment temperature requirement is met, and the comfort is improved.
Further, according to the running state of air-out temperature control electronic expansion valve specifically includes: determining the opening degree variation of the electronic expansion valve according to a first formula, wherein the first formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the outlet air temperature — the first outlet air set temperature, if Δ PMV > 0, K is 2, if Δ PMV < 0, K is 4, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
According to the control method of the fresh air conditioner, the running state of the electronic expansion valve is controlled according to the temperature interval of the indoor environment temperature, the air outlet temperature is adjusted to meet the indoor environment temperature requirement, and the comfort is improved.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is less than or equal to a second outdoor set temperature and greater than a third outdoor set temperature, comparing the outdoor environment temperature with a first indoor set temperature; when the outdoor environment temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time; and when the outdoor environment temperature is less than or equal to the first indoor set temperature, controlling the compressor to be closed and the inner fan to return air.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is less than or equal to the second outdoor set temperature and greater than the third outdoor set temperature, the running state of the compressor is controlled according to the temperature interval of the outdoor environment temperature, so that fresh air exchange is realized and the comfort is improved on the premise of meeting the requirement of the indoor environment temperature.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is lower than the set temperature outside the third chamber, the compressor is controlled to be closed, and the inner fan returns air.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the set temperature outside the third chamber, the compressor is controlled to be closed, the air of the inner fan is controlled to return, the indoor environment temperature is prevented from being too low, and fresh air is changed at the same time, so that the indoor environment comfort is improved.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is greater than or equal to a fourth outdoor set temperature, the compressor is controlled to be turned off, and the inner fan returns air.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is greater than or equal to the fourth outdoor set temperature, the compressor is controlled to be closed, the inner fan returns air, the indoor environment temperature is prevented from being too high, and fresh air is replaced, so that the indoor environment comfort is improved.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is smaller than a fourth outdoor set temperature and larger than a fifth outdoor set temperature, comparing the outdoor environment temperature with a second indoor set temperature; when the outdoor environment temperature is lower than the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time; and when the outdoor environment temperature is greater than or equal to the second indoor set temperature, the compressor is controlled to be closed and the inner fan returns air.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the fourth outdoor set temperature and higher than the fifth outdoor set temperature, the running state of the compressor is controlled according to the temperature interval where the outdoor environment temperature is located, so that fresh air exchange is realized and the comfort is improved on the premise that the indoor environment temperature requirement is met.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is less than or equal to a fifth outdoor set temperature and greater than a sixth outdoor set temperature, comparing the indoor environment temperature with a second outlet air set temperature; when the indoor environment temperature is higher than the second air outlet set temperature, the compressor is controlled to be closed and the inner fan returns air; and when the indoor environment temperature is less than or equal to the second outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is less than or equal to the fifth outdoor set temperature and greater than the sixth outdoor set temperature, the running states of the compressor and the electronic expansion valve are controlled according to the temperature interval of the indoor environment temperature, so that the indoor environment temperature requirement is met, and the comfort is improved.
Further, according to the running state of air-out temperature control electronic expansion valve specifically includes: determining the opening degree variation of the electronic expansion valve according to a second formula, wherein the second formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the second outlet air set temperature — outlet air temperature, if Δ PMV > 0, K is 10, if Δ PMV < 0, K is 5, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
According to the control method of the fresh air conditioner, the running state of the electronic expansion valve is controlled according to the temperature interval of the indoor environment temperature, the air outlet temperature is adjusted to meet the indoor environment temperature requirement, and the comfort is improved.
Further, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is less than or equal to a sixth outdoor set temperature, comparing the outlet air temperature with a second indoor set temperature; when the outlet air temperature is higher than the second indoor set temperature, controlling the compressor to operate; and when the outlet air temperature is less than or equal to the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is less than or equal to the sixth outdoor set temperature, the running state of the compressor is controlled according to the temperature interval where the outlet air temperature is located, so that the indoor environment temperature requirement is met, fresh air is changed, and the comfort is improved.
The invention also provides a control device of the fresh air conditioner, which comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the outdoor environment temperature and the air outlet temperature; the comparison unit is used for comparing the outdoor environment temperature with the outdoor set temperature and the indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature; and the control unit is used for controlling the running states of the compressor and the electronic expansion valve according to the comparison result.
Compared with the prior art, the control device of the fresh air conditioner and the control method of the fresh air conditioner have the same advantages, and are not repeated herein.
The invention also provides a fresh air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and when the computer program is read and run by the processor, the control method of the fresh air conditioner is realized.
Compared with the prior art, the fresh air conditioner and the control method of the fresh air conditioner have the same advantages, and are not repeated herein.
The invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and executed by a processor, the control method of the fresh air conditioner is realized.
Compared with the prior art, the advantages of the computer readable storage medium and the control method of the fresh air conditioner are the same, and are not repeated herein.
Drawings
Fig. 1 is a flowchart of a control method of a fresh air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a control device of a fresh air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, an embodiment of the present invention provides a control method for a fresh air conditioner, including: acquiring outdoor environment temperature and air outlet temperature; comparing the outdoor environment temperature with an outdoor set temperature and an indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature; and controlling the running states of the compressor and the electronic expansion valve according to the comparison result.
Specifically, in this embodiment, the control method of the fresh air conditioner includes: the air conditioner is started, after the compressor and the inner fan operate for a period of time, for example, 15min, the outdoor environment temperature is obtained, the outdoor environment temperature is compared with the outdoor set temperature, for different comparison results of the outdoor environment temperature and the outdoor set temperature, the outdoor environment temperature is compared with the indoor set temperature, the outlet air temperature is obtained, the outlet air temperature is compared with the indoor set temperature, the outlet air temperature is compared with the outlet air set temperature, for heating or refrigerating requirements in different seasons, different control schemes are determined according to temperature intervals where the outdoor environment temperature and the outlet air temperature are located, and the operating states of the compressor and the electronic expansion valve are controlled, so that the comfort requirements in different seasons are met.
According to the control method of the fresh air conditioner, different control schemes are determined according to the temperature intervals of the outdoor environment temperature and the outlet air temperature, and the running states of the compressor and the electronic expansion valve are controlled, so that the comfort requirements in different seasons are met.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigeration mode, when the outdoor environment temperature is greater than or equal to a first outdoor set temperature, comparing the outlet air temperature with a first indoor set temperature; when the outlet air temperature is less than or equal to the first indoor set temperature, controlling the compressor to operate; and when the outlet air temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
Specifically, in this embodiment, the air conditioner operates in a cooling mode, when the outdoor ambient temperature is greater than or equal to a first outdoor set temperature, the air conditioner operates in a high-temperature working condition cooling mode, the outlet air temperature is compared with the first indoor set temperature, and when the outlet air temperature is less than or equal to the first indoor set temperature, the compressor is controlled to continue operating, so that the outlet air temperature approaches the first indoor set temperature, the requirement of the indoor ambient temperature is met, and a fresh air exchange effect is realized; when the air outlet temperature is higher than the first indoor set temperature, the compressor is controlled to operate in a periodic mode, the periodic mode refers to that the compressor operates for a first set time in one operation period, the compressor is stopped for a second set time, and meanwhile, the inner fan also operates in the same periodic mode, so that the fresh air exchange effect is realized on the basis of ensuring the comfort, for example, the compressor operates for 15min in a refrigerating mode, and then the compressor is stopped for 45 min.
Wherein, the first outdoor set temperature value range is 40 to 50 ℃, preferably 43 ℃.
According to the control method of the fresh air conditioner, the outlet air temperature is compared with the first indoor set temperature when the outdoor environment temperature is greater than or equal to the first outdoor set temperature, the running state of the compressor is controlled according to the temperature interval where the outlet air temperature is located, on the premise that the indoor environment temperature requirement is met, fresh air exchange is achieved, and comfort is improved.
Preferably, when the outlet air temperature is less than or equal to the first indoor set temperature, the compressor is controlled to operate, and the method specifically further includes: and when the indoor environment temperature is less than or equal to the difference value between the first indoor set temperature and the preset temperature value, controlling the compressor and the inner fan to stop.
Specifically, in this embodiment, the air conditioner operates in the cooling mode, and when the air-out temperature is less than or equal to the first indoor set temperature, the control compressor operates, and when the indoor ambient temperature is less than or equal to the difference between the first indoor set temperature and the preset temperature value, the control compressor is shut down, and simultaneously the interior fan is shut down to satisfy the indoor ambient temperature demand, improve the indoor ambient comfort level.
In this embodiment, the preset temperature value may be 1 ℃, and when the indoor ambient temperature is less than or equal to the difference between the first indoor set temperature and the preset temperature value, the indoor ambient temperature is less than or equal to the first indoor set temperature of-1 ℃.
According to the control method of the fresh air conditioner, the compressor and the inner fan are stopped when the indoor environment temperature meets the conditions, so that the requirement of the indoor environment temperature is met, and the indoor environment comfort level is improved.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigeration mode, comparing the indoor environment temperature with a first air outlet set temperature when the outdoor environment temperature is less than a first outdoor set temperature and greater than a second outdoor set temperature; when the indoor environment temperature is lower than or equal to the first outlet air set temperature, controlling the compressor to be closed and the inner fan to return air; and when the indoor environment temperature is higher than the first outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
Specifically, in this embodiment, the air conditioner operates in a cooling mode, and when the outdoor ambient temperature is lower than the first outdoor set temperature and higher than the second outdoor set temperature, the air conditioner is in a cooling mode under normal temperature conditions, and compares the indoor ambient temperature with the first outlet set temperature; when indoor ambient temperature is less than or equal to first air-out settlement temperature, in order to guarantee that indoor ambient temperature satisfies the travelling comfort condition, the control compressor closes, and interior fan return air carries out the new trend exchange simultaneously, is greater than when first air-out settlement temperature, according to air-out temperature control electronic expansion valve's running state this moment to the regulation flow reaches the temperature control purpose.
Wherein the second outdoor set temperature is in the range of 25 to 27 deg.c, preferably 25 deg.c.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the first outdoor set temperature and higher than the second outdoor set temperature, the operation states of the compressor and the electronic expansion valve are controlled according to the temperature interval where the indoor environment temperature is located, so that the requirement of the indoor environment temperature is met, and the comfort is improved.
Preferably, the controlling the operating state of the electronic expansion valve according to the outlet air temperature specifically includes: determining the opening degree variation of the electronic expansion valve according to a first formula, wherein the first formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the outlet air temperature — the first outlet air set temperature, if Δ PMV > 0, K is 2, if Δ PMV < 0, K is 4, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
Specifically, in this embodiment, the controlling the operation state of the electronic expansion valve according to the outlet air temperature is specifically implemented by determining an opening variation of the electronic expansion valve according to a first formula, where the first formula is: PMV2 is PMV1+ K Δ PMV, Δ PMV is outlet air temperature — first outlet air set temperature, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree variation, the opening degree before adjustment, and the opening degree after adjustment; when the delta PMV is larger than 0, namely the air outlet temperature is larger than the first air outlet set temperature, K is 2, namely the opening after adjustment is larger than the opening before adjustment, the flow is increased, and the air outlet temperature is reduced; when the delta PMV is less than 0, namely the outlet air temperature is lower than the first outlet air set temperature, K is 4, namely the opening after adjustment is smaller than the opening before adjustment, the flow is reduced, and the outlet air temperature is increased as soon as possible.
Wherein, the value range of the first outlet air set temperature is 2-6 ℃, and preferably 5 ℃; when the degree of superheat is that the evaporator outlet pipe-evaporator inlet pipe is less than 2, in order to reduce the risk of system liquid return and prevent the damage of a compressor, the control is preferentially carried out according to the target that the degree of superheat is that the evaporator outlet pipe-evaporator inlet pipe is 2 ℃.
According to the control method of the fresh air conditioner, the running state of the electronic expansion valve is controlled according to the temperature interval of the indoor environment temperature, the air outlet temperature is adjusted to meet the requirement of the indoor environment temperature, and the comfort is improved.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is less than or equal to a second outdoor set temperature and greater than a third outdoor set temperature, comparing the outdoor environment temperature with a first indoor set temperature; when the outdoor environment temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time; and when the outdoor environment temperature is less than or equal to the first indoor set temperature, controlling the compressor to be closed and the inner fan to return air.
Specifically, in this embodiment, the air conditioner operates in a cooling mode, when the outdoor environment temperature is less than or equal to the second outdoor set temperature and greater than the third outdoor set temperature, the outdoor environment temperature is compared with the first indoor set temperature, and when the outdoor environment temperature is greater than the first indoor set temperature, it is indicated that the air conditioner still needs to keep cooling operation at this time, the compressor is controlled to operate in a periodic mode, the periodic mode is that the compressor operates for the first set time within one operation period, and is stopped for the second set time, and meanwhile, the internal fan also operates in the same periodic mode, so that a fresh air exchange effect is realized on the basis of ensuring comfort, for example, the compressor operates for 15min in cooling, and is stopped for 45 min; when the outdoor environment temperature is less than or equal to the first indoor set temperature, the compressor is controlled to be closed and the return air of the inner fan is kept for fresh air exchange, which indicates that the air conditioner does not need to operate in a refrigeration mode at the moment.
Wherein the range of the set temperature outside the third chamber is 16-20 ℃, and the preferred temperature is 20 ℃.
In the control method of the fresh air conditioner in this embodiment, when the outdoor ambient temperature is less than or equal to the second outdoor set temperature and greater than the third outdoor set temperature, the operating state of the compressor is controlled according to the temperature range where the outdoor ambient temperature is located, so that fresh air exchange is realized and comfort is improved on the premise that the indoor ambient temperature requirement is met.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is lower than the set temperature outside the third chamber, the compressor is controlled to be closed, and the inner fan returns air.
Specifically, in this embodiment, the air conditioner operates under the mode of refrigeration, and when outdoor ambient temperature was less than the third outdoor set temperature, it can guarantee that indoor ambient temperature is in comfortable interval that the air conditioner need not to operate under the mode of refrigeration this moment, consequently controls the compressor and closes, prevents that indoor ambient temperature from crossing excessively, and interior fan return air from changing new trend.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the set temperature outside the third chamber, the compressor is controlled to be closed, the air return of the inner fan is controlled, the indoor environment temperature is prevented from being too low, and fresh air is changed simultaneously, so that the indoor environment comfort is improved.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is greater than or equal to a fourth outdoor set temperature, the compressor is controlled to be turned off, and the inner fan returns air.
Specifically, in this embodiment, the air conditioner operates in the heating mode, and when the outdoor ambient temperature is greater than or equal to the fourth outdoor set temperature, which indicates that the air conditioner does not need to operate in the heating mode at this time, the compressor is controlled to be turned off to prevent the indoor ambient temperature from being too high, and the inner fan return air is kept for exchanging fresh air.
Wherein the fourth outdoor set temperature is in the range of 27 to 30 ℃, preferably 30 ℃.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is greater than or equal to the fourth outdoor set temperature, the compressor is controlled to be closed, the inner fan returns air, the indoor environment temperature is prevented from being too high, and fresh air is replaced simultaneously, so that the indoor environment comfort is improved.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is smaller than a fourth outdoor set temperature and larger than a fifth outdoor set temperature, comparing the outdoor environment temperature with a second indoor set temperature; when the outdoor environment temperature is lower than the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time; and when the outdoor environment temperature is greater than or equal to the second indoor set temperature, the compressor is controlled to be closed and the inner fan returns air.
Specifically, in the present embodiment, the air conditioner operates in the heating mode, and when the outdoor ambient temperature is less than the fourth outdoor set temperature and greater than the fifth outdoor set temperature, compares the outdoor ambient temperature with the second indoor set temperature; when the outdoor ambient temperature is lower than the second indoor set temperature, the air conditioner still needs to operate in a heating mode to ensure the indoor ambient temperature, and the compressor is controlled to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time; when the outdoor environment temperature is greater than or equal to the second indoor set temperature, the air conditioner does not need heating operation at the moment, so that the compressor is controlled to be closed, the indoor environment temperature is prevented from being too high, and meanwhile, the return air of the inner fan is kept for exchanging fresh air.
Wherein, the value range of the fifth outdoor set temperature is 25 to 27 ℃, and preferably 25 ℃.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is lower than the fourth outdoor set temperature and higher than the fifth outdoor set temperature, the operation state of the compressor is controlled according to the temperature interval where the outdoor environment temperature is located, so that fresh air exchange is realized and the comfort is improved on the premise that the indoor environment temperature requirement is met.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is less than or equal to a fifth outdoor set temperature and greater than a sixth outdoor set temperature, comparing the indoor environment temperature with a second outlet air set temperature; when the indoor environment temperature is higher than the second air outlet set temperature, the compressor is controlled to be closed and the inner fan returns air; and when the indoor environment temperature is less than or equal to the second outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
Specifically, in the present embodiment, when the air conditioner operates in the heating mode, and when the outdoor ambient temperature is less than or equal to the fifth outdoor set temperature and greater than the sixth outdoor set temperature, the indoor ambient temperature is compared with the second outlet set temperature; when the indoor environment temperature is higher than the second air outlet set temperature, the air conditioner does not need to be heated at the moment, so that the compressor is controlled to be closed, the indoor environment temperature is prevented from being overhigh, and meanwhile, the return air of the inner fan is kept for exchanging fresh air; when the indoor environment temperature is less than or equal to the second outlet air set temperature, which indicates that the air conditioner still needs to operate in the heating mode at the moment, the operating state of the electronic expansion valve is controlled according to the outlet air temperature so as to adjust the flow rate and achieve the temperature control purpose.
Wherein, the value range of the sixth outdoor set temperature is-15 ℃ to-10 ℃, and is preferably-10 ℃.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is less than or equal to the fifth outdoor set temperature and greater than the sixth outdoor set temperature, the operation states of the compressor and the electronic expansion valve are controlled according to the temperature interval where the indoor environment temperature is located, so that the requirement of the indoor environment temperature is met, and the comfort is improved.
Preferably, the controlling the operating state of the electronic expansion valve according to the outlet air temperature specifically includes: determining the opening degree variation of the electronic expansion valve according to a second formula, wherein the second formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the second outlet air set temperature — outlet air temperature, if Δ PMV > 0, K is 10, if Δ PMV < 0, K is 5, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
Specifically, in this embodiment, the controlling the operation state of the electronic expansion valve according to the outlet air temperature is specifically implemented by determining an opening variation of the electronic expansion valve according to a second formula, where the second formula is: PMV2 is PMV1+ K Δ PMV, Δ PMV is a second outlet air set temperature — outlet air temperature, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree variation, the opening degree before adjustment, and the opening degree after adjustment; when the delta PMV is larger than 0, namely the second air outlet set temperature is larger than the air outlet temperature, K is 10, namely the opening after adjustment is larger than the opening before adjustment, the flow is increased, and the air outlet temperature is increased as soon as possible; when Δ PMV is less than 0, that is, the second outlet air set temperature is lower than the outlet air temperature, K is 5, which is equivalent to that the opening after adjustment is lower than the opening before adjustment, and the flow rate is reduced to lower the outlet air temperature.
Wherein, the value range of the second outlet air set temperature is 47-52 ℃, preferably 48 ℃; and in the regulation process of the electronic expansion valve, the minimum opening degree is 150P.
According to the control method of the fresh air conditioner, the running state of the electronic expansion valve is controlled according to the temperature interval of the indoor environment temperature, the air outlet temperature is adjusted to meet the requirement of the indoor environment temperature, and the comfort is improved.
Preferably, the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically includes: when the air conditioner is in a heating mode, when the outdoor environment temperature is less than or equal to a sixth outdoor set temperature, comparing the outlet air temperature with a second indoor set temperature; when the outlet air temperature is higher than the second indoor set temperature, controlling the compressor to operate; and when the outlet air temperature is less than or equal to the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
Specifically, in the present embodiment, the air conditioner operates in the heating mode, and when the outdoor ambient temperature is less than or equal to the sixth outdoor set temperature, the outlet air temperature is compared with the second indoor set temperature; when the outlet air temperature is higher than the second indoor set temperature, controlling the compressor to perform heating operation; and when the outlet air temperature is less than or equal to a second indoor set temperature, controlling the compressor to operate in a periodic mode, and simultaneously, controlling the inner fan to operate in the same periodic mode so as to meet the requirement of indoor environment temperature and exchange fresh air, wherein the periodic mode is that the compressor operates for a first set time in one operating period, stops for a second set time, for example, the compressor operates for heating for 15min, and then stops for 45 min.
According to the control method of the fresh air conditioner, when the outdoor environment temperature is less than or equal to the sixth outdoor set temperature, the running state of the compressor is controlled according to the temperature interval where the outlet air temperature is located, so that the indoor environment temperature requirement is met, fresh air is exchanged, and the comfort is improved.
Another embodiment of the present invention provides a control device for a fresh air conditioner, including an obtaining unit, configured to obtain an outdoor environment temperature and an outlet air temperature; the comparison unit is used for comparing the outdoor environment temperature with the outdoor set temperature and the indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature; and the control unit is used for controlling the running states of the compressor and the electronic expansion valve according to the comparison result.
Another embodiment of the present invention provides a fresh air conditioner, including a computer-readable storage medium storing a computer program and a processor, wherein when the computer program is read and executed by the processor, the method for controlling the fresh air conditioner is implemented.
Another embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and when the computer program is read and executed by a processor, the method for controlling a fresh air conditioner is implemented.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A control method of a fresh air conditioner is characterized by comprising the following steps:
acquiring outdoor environment temperature and air outlet temperature;
comparing the outdoor environment temperature with an outdoor set temperature and an indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature;
controlling the operation states of the compressor and the electronic expansion valve according to the comparison result, wherein the controlling the operation states of the compressor and the electronic expansion valve according to the comparison result specifically comprises:
when the air conditioner is in a refrigeration mode, when the outdoor environment temperature is greater than or equal to a first outdoor set temperature, comparing the outlet air temperature with a first indoor set temperature;
when the outlet air temperature is less than or equal to the first indoor set temperature, controlling the compressor to operate;
and when the outlet air temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
2. The method for controlling a fresh air conditioner according to claim 1, wherein when the outlet air temperature is less than or equal to the first indoor set temperature, the compressor is controlled to operate, and specifically, the method further comprises:
and when the indoor environment temperature is less than or equal to the difference value between the first indoor set temperature and the preset temperature value, controlling the compressor and the inner fan to stop.
3. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a refrigeration mode, comparing the indoor environment temperature with a first air outlet set temperature when the outdoor environment temperature is less than a first outdoor set temperature and greater than a second outdoor set temperature;
when the indoor environment temperature is lower than or equal to the first outlet air set temperature, controlling the compressor to be closed and the inner fan to return air;
and when the indoor environment temperature is higher than the first outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
4. The method for controlling a fresh air conditioner according to claim 3, wherein the controlling the operating state of the electronic expansion valve according to the outlet air temperature specifically comprises:
determining the opening degree variation of the electronic expansion valve according to a first formula, wherein the first formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the outlet air temperature — the first outlet air set temperature, if Δ PMV > 0, K is 2, if Δ PMV < 0, K is 4, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
5. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is less than or equal to a second outdoor set temperature and greater than a third outdoor set temperature, comparing the outdoor environment temperature with a first indoor set temperature;
when the outdoor environment temperature is higher than the first indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time;
and when the outdoor environment temperature is less than or equal to the first indoor set temperature, controlling the compressor to be closed and the inner fan to return air.
6. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a refrigerating mode, when the outdoor environment temperature is lower than the set temperature outside the third chamber, the compressor is controlled to be closed, and the inner fan returns air.
7. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a heating mode, when the outdoor environment temperature is greater than or equal to a fourth outdoor set temperature, the compressor is controlled to be turned off, and the inner fan returns air.
8. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a heating mode, when the outdoor environment temperature is smaller than a fourth outdoor set temperature and larger than a fifth outdoor set temperature, comparing the outdoor environment temperature with a second indoor set temperature;
when the outdoor environment temperature is lower than the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time;
and when the outdoor environment temperature is greater than or equal to the second indoor set temperature, the compressor is controlled to be closed and the inner fan returns air.
9. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a heating mode, comparing the indoor environment temperature with a second outlet air set temperature when the outdoor environment temperature is less than or equal to a fifth outdoor set temperature and greater than a sixth outdoor set temperature;
when the indoor environment temperature is higher than the second air outlet set temperature, the compressor is controlled to be closed and the inner fan returns air;
and when the indoor environment temperature is less than or equal to the second outlet air set temperature, controlling the running state of the electronic expansion valve according to the outlet air temperature.
10. The method for controlling a fresh air conditioner according to claim 9, wherein the controlling the operating state of the electronic expansion valve according to the outlet air temperature specifically comprises:
determining the opening degree variation of the electronic expansion valve according to a second formula, wherein the second formula is as follows: PMV2 is PMV1+ K Δ PMV, Δ PMV is the second outlet air set temperature — outlet air temperature, if Δ PMV > 0, K is 10, if Δ PMV < 0, K is 5, and Δ PMV, PMV1, and PMV2 respectively indicate the opening degree change amount, the opening degree before adjustment, and the opening degree after adjustment.
11. The method for controlling a fresh air conditioner according to claim 1, wherein the operating states of the compressor and the electronic expansion valve are controlled according to the comparison result, and the method specifically comprises the following steps:
when the air conditioner is in a heating mode, when the outdoor environment temperature is less than or equal to a sixth outdoor set temperature, comparing the outlet air temperature with a second indoor set temperature;
when the outlet air temperature is higher than the second indoor set temperature, controlling the compressor to operate;
and when the outlet air temperature is less than or equal to the second indoor set temperature, controlling the compressor to operate in a periodic mode, wherein the periodic mode is that the compressor operates for a first set time in one operating period and stops for a second set time.
12. The utility model provides a controlling means of new trend air conditioner which characterized in that includes:
the acquiring unit is used for acquiring outdoor environment temperature and air outlet temperature;
the comparison unit is used for comparing the outdoor environment temperature with the outdoor set temperature and the indoor set temperature, and comparing the air outlet temperature with the indoor set temperature and the air outlet set temperature;
and the control unit is used for controlling the running states of the compressor and the electronic expansion valve according to the comparison result.
13. A fresh air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the method of controlling the fresh air conditioner according to any one of claims 1 to 11.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when read and executed by a processor, implements the control method of the fresh air conditioner according to any one of claims 1 to 11.
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| CN111561769B (en) * | 2020-05-21 | 2022-07-08 | 广东美的暖通设备有限公司 | Fresh air system, control method thereof and computer-readable storage medium |
| CN112413733A (en) * | 2020-10-27 | 2021-02-26 | 青岛海尔空调器有限总公司 | Fresh air conditioner operation control method and fresh air conditioner |
| CN112413735A (en) * | 2020-12-03 | 2021-02-26 | 珠海格力电器股份有限公司 | Fresh air conditioner control method and device, storage medium and fresh air conditioner |
| CN112665250A (en) * | 2020-12-28 | 2021-04-16 | 江苏拓米洛环境试验设备有限公司 | Temperature control method and system |
| CN114484606B (en) * | 2022-02-17 | 2023-08-04 | 宁波奥克斯电气股份有限公司 | Fresh air conditioner, control method and device thereof and readable storage medium |
| CN114562790B (en) * | 2022-03-29 | 2023-09-01 | 宁波奥克斯电气股份有限公司 | Heating mode fresh air control method and device, air conditioner and readable storage medium |
| CN114543253B (en) * | 2022-03-29 | 2023-09-01 | 宁波奥克斯电气股份有限公司 | Fresh air control method and device in refrigeration mode, air conditioner and readable storage medium |
| CN115614943A (en) * | 2022-09-16 | 2023-01-17 | 宁波奥克斯电气股份有限公司 | Control method and device of fresh air conditioner and fresh air conditioner |
| CN115654704A (en) * | 2022-09-30 | 2023-01-31 | 宁波奥克斯电气股份有限公司 | Control method and control device for optimizing refrigeration effect of fresh air conditioner and fresh air conditioner |
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