CN110307623A - Conditioner and air conditioning control method - Google Patents

Conditioner and air conditioning control method Download PDF

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Publication number
CN110307623A
CN110307623A CN201910192304.5A CN201910192304A CN110307623A CN 110307623 A CN110307623 A CN 110307623A CN 201910192304 A CN201910192304 A CN 201910192304A CN 110307623 A CN110307623 A CN 110307623A
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CN
China
Prior art keywords
temperature
heat exchanger
indoor
absolute humidity
humidity
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CN201910192304.5A
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Chinese (zh)
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CN110307623B (en
Inventor
孝桥靖雄
杉本博子
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of CN110307623A publication Critical patent/CN110307623A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Abstract

The present invention provides a kind of conditioner, has: obtaining the absolute humidity preset value calculation portion for indicating the first absolute humidity of the target absolute humidity determined according to the first temperature for indicating predetermined temperature and the first relative humidity for indicating preset relative humidity；Obtain the dew-point temperature calculating portion of the dew-point temperature determined according to the first temperature and the first relative humidity；Obtain the absolute humidity calculation part for indicating the second absolute humidity of the indoor absolute humidity determined according to the second temperature for indicating indoor temperature and the second relative humidity for indicating indoor relative humidity；In the case where the second absolute humidity is more than the first absolute humidity, stop the air-supply of indoor machine fan, close blow-off outlet, the heat exchanger temperature that control makes indoor heat exchanger carry out cooling dehumidifying operating under dew-point temperature compares to determine portion and indoor fan and/or blow-off outlet control unit.

Description

Conditioner and air conditioning control method
Technical field
The present invention relates to a kind of conditioner and air conditioning control methods, such as are related to a kind of sky at night in summer Desired absolute humidity can be maintained during bedroom is slept under slightly higher cryogenic temperature setting in regulation system Conditioner and air conditioning control method.
Background technique
Up to the present, it in order to further increase it may be said that occupy the quality of the sleep of 1/3rd time of life, opens It has sent out various for being set as the temperature environment during sleep to be more suitable for the conditioner (air conditioning of the environment of sleep Machine) control method.In addition, the metabolism amount during the sleep of human body can decline for the case where waking, therefore, such as Fruit, which carries out common airconditioning control, can not then obtain comfortable sleep.Therefore, back and forth, as the refrigeration fortune being suitable for when sleeping Rotary-die type, the refrigeration operation for the mode that considers to carry out going to bed based on this come the mode of going to bed called with titles such as " sleep patterns ".
Such as air conditioner below is disclosed in No. 3999608 bulletins of Japanese Patent No..That is, air conditioner into Refrigeration operation of the row based on scheme control of going to bed, in the refrigeration operation in increasing region compressor rotary speed lower than prescribed level, And air conditioning target temperature and indoor detection temperature difference are specified value state below or indoor detection humidity is more than base In the case that the state of the setting humidity of the operation of h.d. continue for the stipulated time or more, outdoor heat will be set to by, which carrying out, is handed over Parallel operation becomes excessively throttling compared with when the aperture of the electric expansion valve between indoor heat exchanger is set as with usual refrigeration operation The excessive throttling refrigeration of state operates.
In addition, disclosing air conditioner below in Japanese Unexamined Patent Publication 2001-280668 bulletin.That is, have by The refrigerating cycle and inverter of the compositions such as compressor, outdoor heat exchanger, indoor heat exchanger, bypass valve, exhaust port valve In the reheating dry operating of the air conditioner of the electric components such as device, outdoor fan, indoor fan, by DC-to-AC converter into When row is cooling, keeps the heat exchange in outdoor heat exchanger minimum, increase the refrigeration dose conveyed to indoor heat exchanger.
In addition, disclosing air conditioner below in No. 3446792 bulletins of Japanese Patent No..That is, air conditioner It constitutes following refrigerating cycle: the refrigerant obtained by compressor is shunted via outdoor heat exchanger, expansion valve, current divider, And open and close valve is inserted by the refrigerant passage in a side and shunts the indoor heat exchange supplied from entrance to 2 refrigerant passages Device is to the compressor cycle.In addition, air conditioner is provided with the temperature and indoor heat exchange for the outlet for detecting expansion valve respectively The temperature sensor of the temperature of the middle part of device, dehumidify operating when, to compressor carry out low speed control, and according to room temperature with Control is opened and closed to open and close valve in the temperature difference of set temperature.In addition, air conditioner so that the temperature of the outlet of expansion valve with The mode that the temperature difference of the temperature of the middle part of indoor heat exchanger becomes defined a reference value controls the amount of restriction of expansion valve, by This carries out variable control to the liquid domain for the refrigerant for flowing through indoor heat exchanger, periodically switches dehumidifying effect.
In addition, disclosing air conditioner below in No. 3011708 bulletins of Japanese Patent No..That is, air conditioner By the outdoor unit with capacity variable type compressor, four-way valve, outdoor heat exchanger and pressure reducer and there is indoor heat exchange The indoor unit of device is connected with each other, and when dehumidifying operating, will rotatably be set to the angle of the wind direction change blade of indoor unit It is set as at or near the occlusion locations for occluding the blow-off outlet of indoor unit.
However, in conditioner as described above, in the slightly higher temperature setting that refrigeration operation is difficult to act In the case of, it is difficult to it realizes proper temperature and appropriate humidity, needs further to improve.
Summary of the invention
The present invention is completed to solve the problem above-mentioned, even if its purpose is to provide one kind in refrigeration operation hardly possible It also can be realized the conditioner and airconditioning control of proper temperature and appropriate humidity under the slightly higher temperature setting of movement Method.
The conditioner that one embodiment of the present invention is related to, has: obtaining indicates preset according to expression The first of the target absolute humidity that first temperature of temperature and the first relative humidity of the preset relative humidity of expression determine First acquisition unit of absolute humidity；Obtain the of the dew-point temperature determined according to first temperature and first relative humidity Two acquisition units；Obtain the second phase for indicating according to the second temperature for indicating indoor temperature and indicating the indoor relative humidity To the third acquisition unit of the second absolute humidity of the indoor absolute humidity of humidity decision；By the indoor air and system The heat exchanger of cryogen progress heat exchange；Convey the air supplying part by heat exchanger air after cooling；For will be by described The air delivery of air supplying part conveying is to the indoor air outlet；And second absolute humidity be more than described first absolutely In the case where to humidity, stop the air-supply of the air supplying part, close the air outlet, control is by the heat exchanger in institute State the control unit that cooling dehumidifying operating is carried out under dew-point temperature.
Detailed description of the invention
Fig. 1 is to indicate room temperature during tester sleeps in bedroom, temperature in indoor relative temperature and bed State change an example figure.
Fig. 2 is the block diagram for indicating an example of structure of the conditioner in embodiments of the present invention 1.
Fig. 3 is that indicate that absolute humidity preset value calculation shown in Fig. 2 portion uses to find out absolute humidity absolute wet Spend the figure of an example of map table.
Fig. 4 is the dew-point temperature transformation for indicating dew-point temperature calculating shown in Fig. 2 portion and using to find out dew-point temperature The figure of an example of table.
Fig. 5 is the flow chart for indicating an example of humid control processing of conditioner shown in Fig. 2.
Fig. 6 is the flow chart for indicating an example shown in fig. 5 for forcing moisture condensation dehumidifying operating processing.
Fig. 7 is the figure for indicating an example of action state of conditioner shown in Fig. 2.
Fig. 8 is the flow chart for indicating other an examples shown in fig. 5 for forcing moisture condensation dehumidifying operating processing.
Fig. 9 is to indicate to perform the conditioner in the case that pressure moisture condensation dehumidifying operating shown in Fig. 8 is handled The figure of an example of action state.
Figure 10 is the block diagram for indicating an example of structure of the conditioner in embodiments of the present invention 2.
Figure 11 is the flow chart for indicating an example of humid control processing of conditioner shown in Fig. 10.
Figure 12 is the figure for indicating an example of action state of conditioner shown in Fig. 10.
Specific embodiment
(opinion as basis of the invention)
In above-mentioned patent document 1, there are the following problems: in the daybreak in summer, the movement of refrigeration operation stops Period increases, and does not feel good at the time point that humidity rises.
In addition, in patent document 2, after acting refrigeration operation, in order to avoid indoor supercooling, being heated to use To indoor air-supply after the set temperature at family, so as to take into account proper temperature and appropriate humidity, but there are the following problems: due to It is reheated after refrigeration, therefore energy efficiency is poor.
In addition, in patent document 3,2 heat exchangers are arranged in machine indoors, by a heat exchanger control at slightly higher Temperature it is cooling, the control of another heat exchanger is used at the dehumidifying of slightly lower temperature, the dehumidifying for avoid room temperature to be subcooled, There are the following problems: the dedicated heat exchanger of cooling temperature can be controlled in subregional due to using, heat exchanger Component costs rise.
In addition, in patent document 4, closing the blow-off outlet of indoor unit to inhibit cold wind sense, but there are the following problems: by It is common movement in refrigeration operation, therefore in the same manner as patent document 1, rises there are still the humidity when daybreak in summer Sense of discomfort.
Present inventor etc. is conceived to above-mentioned problem, tests the knot attentively studied by tester for sleep environment Fruit as obstruction it is found that based in the refrigeration operation for going to bed mode, in summer when daybreak, relaxing as described above One of the main reason for suitable sleep, the rising of humidity has an impact.During Fig. 1 indicates that tester sleeps in bedroom The figure of an example of the state change of temperature in room temperature, indoor relative temperature and bed.
As shown in Figure 1, firstly, the temperature of the refrigeration operation of conditioner is set in refrigeration operation start time t1 It is set to 27 DEG C, room temperature RT drops to 27 DEG C.Later, in the moment t2 that go to bed, the temperature of refrigeration operation, which is set, is changed to 28 DEG C, tester, which goes to bed, to go to bed.Then, until room temperature RT becomes 2 DEG C higher than 28 DEG C of set temperature of 30 DEG C of refrigeration operation Until acting start time t3, refrigeration operation is in movement halted state, acts start time t3, refrigeration operation in refrigeration operation Become action state.Then, stop timing t4 is acted in refrigeration operation, when room temperature RT reaches 28 DEG C of set temperature, system Blowdown firing becomes acting halted state.Hereafter, start time t5 is acted in refrigeration operation, refrigeration operation starts, in refrigeration operation Stop timing t6 is acted, refrigeration operation stops, and the movement for repeating refrigeration operation starts and act stopping.
At this point, outside the room at night temperature, that is, outdoor temperature due to no direct light, even if summer be also 30 DEG C hereinafter, Become the lowest temperature in daybreak, becomes 25 DEG C or less sometimes.It is lower than the setting temperature of indoor refrigeration operation in outdoor temperature It is elongated during until room temperature reaches the movement start temperature of refrigeration operation in the case where degree.If refrigeration operation Halted state it is elongated, then the wet-out property decline of conditioner, indoor relative humidity IH is little by little gradually increasing.
Here, temperature BT and room temperature RT less change in bed, but in uncomfortable relative humidity start time t7, room Interior relative humidity IH is more than 60%, generate relative humidity be more than 60% discomfort during UP.Thus, generate the following state of affairs: although Originally at the time of being desirable to still in sleep, but in moment t8, tester has difficulty in going to sleep and gets up.Its result is it is found that important Be take into account sleep during bedroom proper temperature and appropriate humidity (50%) airconditioning control.In addition, being in Fig. 1 The set temperature of the refrigeration operation of h.d. is set as to 28 DEG C of example, but is also possible to other than it.In addition, being the fortune that will freeze The room temperature that the movement turned starts is set as+2 DEG C of set temperature of example, but can also be according to the manufacture of conditioner The specification of quotient and it is slightly different.
Based on above-mentioned tester's experiment as a result, the present application people are slightly higher about being difficult to act in refrigeration operation Temperature setting in the case where such as how energy-efficient and be realized with a low cost sendible temperature and will not be subcooled and proper temperature and suitable When humidity attentively studied as a result, completing the present invention.
The conditioner that one embodiment of the present invention is related to, has: obtaining indicates preset according to expression The first of the target absolute humidity that first temperature of temperature and the first relative humidity of the preset relative humidity of expression determine First acquisition unit of absolute humidity；Obtain the of the dew-point temperature determined according to first temperature and first relative humidity Two acquisition units；Obtain the second phase for indicating according to the second temperature for indicating indoor temperature and indicating the indoor relative humidity To the third acquisition unit of the second absolute humidity of the indoor absolute humidity of humidity decision；By the indoor air and system The heat exchanger of cryogen progress heat exchange；Convey the air supplying part by heat exchanger air after cooling；For will be by described The air delivery of air supplying part conveying is to the indoor air outlet；And second absolute humidity be more than described first absolutely In the case where to humidity, stop the air-supply of the air supplying part, close the air outlet, control is by the heat exchanger in institute State the control unit that cooling dehumidifying operating is carried out under dew-point temperature.
According to this configuration, obtaining indicates according to the first temperature for indicating predetermined temperature and indicates preset phase To the first absolute humidity of the target absolute humidity that the first relative humidity of humidity determines, obtain according to the first temperature and the first phase To the dew-point temperature that humidity determines, obtaining indicates according to the second temperature for indicating indoor temperature and indicates indoor relative humidity The second relative humidity determine indoor absolute humidity the second absolute humidity.Here, being more than first in the second absolute humidity In the case where absolute humidity, keeps air supplying part out-of-blast and indoor air and refrigerant are carried out by heat exchange by heat exchanger Air after cooling is used in the air delivery that will be conveyed by air supplying part and closes to indoor air outlet, revealing heat exchanger Cooling dehumidifying operating is carried out at a temperature of point.It is thereby achieved that sendible temperature will not be subcooled and for proper temperature and appropriate wet Degree.Moreover, because without preventing the reheating of supercooling from handling, it is possible to carry out the conditioner of energy-efficient Humid control.Moreover, because not using special heat exchanger, it is possible to carry out the air tune that components cost will not be too high The humid control of regulating device.As a result, even if in the case where the slightly higher temperature setting that refrigeration operation is difficult to act, it also can be high It energy efficiency and is achieved at low cost sendible temperature and will not be subcooled and proper temperature and appropriate humidity.
Moreover, first acquisition unit also may include the first calculation part, which obtains first temperature With first relative humidity, according to the first absolute humidity described in first temperature and first relative humidity calculation；Institute State the second acquisition unit also and may include the second calculation part, which obtains first temperature and described first relatively wet Degree, according to dew-point temperature described in first temperature and first relative humidity calculation；The third acquisition unit also can wrap Third calculation part is included, which obtains the second temperature and second relative humidity, according to the second temperature With the second absolute humidity described in second relative humidity calculation.
According to this configuration, the first temperature and the first relative humidity are obtained, according to the first temperature and the first relative humidity calculation First absolute humidity, according to the first temperature and the first relative humidity calculation dew-point temperature, moreover, obtaining second temperature and the second phase To humidity, according to second temperature and second the second absolute humidity of relative humidity calculation.For this purpose, it is exhausted accurately to obtain target To humidity, dew-point temperature and indoor absolute humidity.
Moreover, the control unit is during second absolute humidity is more than first absolute humidity, it can also be after Continue the cooling of the heat exchanger.
According to this configuration, because continuing the cold of heat exchanger during the second absolute humidity is more than the first absolute humidity But, the indoor state for maintaining proper temperature and appropriate humidity can be made.
Moreover, the control unit is during the temperature of the heat exchanger is not less than the dew-point temperature, it can also be after Continue the cooling of the heat exchanger.
According to this configuration, because continuing the cold of heat exchanger during the temperature of heat exchanger is not less than dew-point temperature But, the indoor state for maintaining proper temperature and appropriate humidity can be made.
Moreover, the conditioner can also have the 4th acquisition unit, the 4th acquisition unit, which obtains, indicates outdoor Temperature third temperature, the control unit is in the phase that first temperature or the second temperature are more than the third temperature Between, it may also begin to the dehumidifying operating.
According to this configuration, the third temperature for obtaining the temperature for indicating outdoor is more than third in the first temperature or second temperature During temperature, start dehumidifying operating.For this purpose, can be more than outdoor temperature in predetermined temperature or indoor temperature In the case of start dehumidifying operating, make the indoor state for being in proper temperature and appropriate humidity.
Moreover, the control unit the dehumidifying operating in, second absolute humidity reach described first absolutely it is wet After degree, the heat exchanger can also be cooled down, so that the temperature of the heat exchanger is including the dew-point temperature Prescribed limit in.
According to this configuration, in dehumidifying operating, after the second absolute humidity reaches the first absolute humidity, heat can be cooled down Exchanger, so that the temperature of heat exchanger is in the prescribed limit comprising dew-point temperature.For this purpose, indoor temperature mistake can be prevented It is cold, and the indoor state for maintaining proper temperature and appropriate humidity can be made.
The conditioner that another embodiment of the present invention is related to, has: obtaining indicates predetermined temperature First acquisition unit of the first temperature；Obtain the second acquisition unit for indicating the second temperature of room temperature；By the indoor air The heat exchanger of heat exchange is carried out with refrigerant；Convey the air supplying part by heat exchanger air after cooling；For will be by The air delivery of air supplying part conveying is to the indoor air outlet；So that the air supplying part is blown, open the air outlet, The refrigeration operation and the cooling heat exchanger of the cooling heat exchanger of control carry out the dehumidifying operating of the indoor dehumidifying, To allow the second temperature to reach the control unit of first temperature, and, determine to switch the refrigeration operation and described Dehumidify the determination unit operated, wherein the determination unit, according to the actuation time of the adjacent refrigeration operation in time series And the difference of dwell time determines that the dehumidifying is switched to from the refrigeration operation to be operated, the control unit, according to from the refrigeration The judgement that operating is switched to the dehumidifying operating operates as a result, the refrigeration operation is switched to the dehumidifying.
According to this configuration, the first temperature for indicating predetermined temperature is obtained, the second temperature for indicating room temperature is obtained Degree.Make air supplying part conveying that indoor air and refrigerant be carried out heat exchange air after cooling by heat exchanger, uses It is opened in the air delivery that will be conveyed by air supplying part to indoor air outlet, controls refrigeration operation and the cooling of cooling heat exchanger Heat exchanger carries out the dehumidifying operating of indoor dehumidifying, to allow second temperature to reach the first temperature.At this point, according in time sequence The difference of the actuation time of adjacent refrigeration operation and dwell time on column determine that dehumidifying is switched to from refrigeration operation to be operated, according to The judgement of dehumidifying operating is switched to from refrigeration operation as a result, refrigeration operation is switched to dehumidifying operating.It therefore, can indoors Relative humidity rises to before offending state, is switched to dehumidifying operating from refrigeration operation.As a result, even if in refrigeration operation In the case where the slightly higher temperature setting for being difficult to act, being also able to achieve sendible temperature will not be subcooled and proper temperature and appropriate wet Degree.
Moreover, the control unit can also be such that the air-supply of the air supplying part stops when the dehumidifying operates, make described send Air port is closed.
According to this configuration, the air-supply of air supplying part can be made to stop when dehumidifying operating, closes air outlet.For this purpose, by removing Wet cold air will not be delivered directly to interior, can make the indoor state for being in proper temperature and appropriate humidity.
Moreover, the actuation time of the refrigeration operation also may include the cooling time of the heat exchanger.
According to this configuration, can determine to be switched to the operating that dehumidifies from refrigeration operation based on the cooling time of heat exchanger.For this purpose, Relative humidity indoors rises to before offending state, so that it may refrigeration operation are reliably switched to dehumidifying operating.
Moreover, the determination unit, it can also be in the actuation time of the refrigeration operation and the difference of dwell time defined In the case where more than threshold value, determine to be switched to the dehumidifying operating from the refrigeration operation.
According to this configuration, the situation in the difference of the actuation time of refrigeration operation and dwell time more than defined threshold value Under, determine to be switched to dehumidifying operating from refrigeration operation.For this purpose, relative humidity indoors rises to before offending state, Refrigeration operation reliably can be switched to dehumidifying operating.
Moreover, the conditioner can also have: obtaining the first phase for indicating preset relative humidity To the third acquisition unit of humidity；Obtain the 4th acquisition unit for indicating the second relative humidity of the indoor relative humidity；According to First temperature and first relative humidity calculation indicate the first absolute humidity of the indoor target absolute humidity First calculation part；According to the second calculation part of dew-point temperature described in first temperature and first relative humidity calculation；Root The of the second absolute humidity of the indoor absolute humidity is indicated according to the second temperature and second relative humidity calculation Three calculation parts, wherein the control unit is operated as the dehumidifying, is more than described first absolute in second absolute humidity In the case where humidity, the air-supply of the air supplying part can also be made to stop, closing the air outlet, make the heat exchanger in institute It states and is cooled down under dew-point temperature.
According to this configuration, the first relative humidity for indicating preset relative humidity is obtained, obtaining indicates indoor phase To the second relative humidity of humidity.Moreover, indicating that indoor target is absolutely wet according to the first temperature and the first relative humidity calculation First absolute humidity of degree, according to the first temperature and the first relative humidity calculation dew-point temperature, according to second temperature and the second phase The second absolute humidity for indicating indoor absolute humidity is calculated humidity.At this point, operated as dehumidifying, it is super in the second absolute humidity In the case where crossing the first absolute humidity, stops the air-supply of air supplying part, close air outlet, make heat exchanger under dew-point temperature It is cooled down.It is thereby achieved that sendible temperature will not be subcooled and be proper temperature and appropriate humidity.Moreover, because without Prevent the reheating processing of supercooling, it is possible to carry out the humidity operating of the conditioner of energy-efficient.Moreover, because Without using special heat exchanger, it is possible to carry out the humidity operating for the conditioner that components cost will not be too high. As a result, even if in the case where the slightly higher temperature setting that refrigeration operation is difficult to act, also can energy-efficient and it is low at It is local to realize that sendible temperature be subcooled and proper temperature and appropriate humidity.
Moreover, the conditioner that another embodiment of the present invention is related to, has: obtaining indicates preset temperature First acquisition unit of the first temperature of degree；Obtain the second acquisition unit for indicating the second temperature of room temperature；Obtaining indicates outdoor The third acquisition unit of the third temperature of temperature；The indoor air and refrigerant are carried out to the heat exchanger of heat exchange；Conveying By the air supplying part of heat exchanger air after cooling；Air delivery for will be conveyed by the air supplying part is to the interior Air outlet；So that the air supplying part is blown, opens the air outlet, the refrigeration operation of the cooling heat exchanger of control and cold The heat exchanger carries out the dehumidifying operating of the indoor dehumidifying, to allow the second temperature to reach first temperature Control unit, and, determine the determination unit for switching the refrigeration operation and the dehumidifying operating, wherein the determination unit, root According to first temperature or the second temperature and the third temperature difference, determine to be switched to described remove from the refrigeration operation Wet operating, the control unit are switched to the judgement operated that dehumidifies as a result, the refrigeration is transported according to from the refrigeration operation Turn to be switched to the dehumidifying operating.
According to this configuration, the first temperature for indicating predetermined temperature is obtained, the second temperature for indicating room temperature is obtained Degree obtains the third temperature for indicating outdoor temperature.Make air supplying part conveying by heat exchanger by indoor air and refrigerant into Row heat exchange and air after cooling, be used in the air delivery that will be conveyed by air supplying part opens to indoor air outlet, control The refrigeration operation of cooling heat exchanger and cooling heat exchanger carry out the dehumidifying operating of indoor dehumidifying, to allow second temperature to reach To the first temperature.At this point, determining to be switched to dehumidifying from refrigeration operation according to the first temperature or second temperature and third temperature difference Operating, according to the judgement for being switched to dehumidifying operating from refrigeration operation as a result, refrigeration operation is switched to dehumidifying operating.Therefore, energy Enough relative humidity indoors rises to before offending state, is switched to dehumidifying operating from refrigeration operation.As a result, even if In the case where the slightly higher temperature setting that refrigeration operation is difficult to act, being also able to achieve sendible temperature will not be subcooled and appropriate temperature Degree and appropriate humidity.
Moreover, the control unit can also be such that the air-supply of the air supplying part stops when the dehumidifying operates, make described send Air port is closed.
According to this configuration, the air-supply of air supplying part can be made to stop when dehumidifying operating, closes air outlet.For this purpose, by removing Wet cold air will not be delivered directly to interior, can make the indoor state for being in proper temperature and appropriate humidity.
Moreover, the determination unit, it can also be in first temperature or the second temperature and the third temperature difference In the case where more than defined threshold value, determine to be switched to the dehumidifying operating from the refrigeration operation.
According to this configuration, in the first temperature or second temperature and situation of the third temperature difference more than defined threshold value Under, determine to be switched to dehumidifying operating from refrigeration operation.For this purpose, relative humidity indoors rises to before offending state, Refrigeration operation reliably can be switched to dehumidifying operating.
It, can be with moreover, the present invention more than only may be implemented to have the conditioner of features described above composition Realize the air-conditioning for executing using processor etc. and constituting corresponding characteristic processing with the characteristic that conditioner has Control method.Therefore, other embodiment below has same effect with above-mentioned conditioner.
The air conditioning control method that another embodiment of the present invention is related to controls conditioner using processor, The conditioner has the heat exchanger that indoor air and refrigerant are carried out heat exchange, conveying by the heat exchanger The air supplying part of air after cooling and air delivery for will be conveyed by the air supplying part, should to the indoor air outlet Air conditioning control method: obtaining indicates according to the first temperature for indicating predetermined temperature and indicates preset relative humidity The first relative humidity determine target absolute humidity the first absolute humidity；It obtains according to first temperature and described first The dew-point temperature that relative humidity determines；Obtaining indicates according to the second temperature for indicating the indoor temperature and indicates the interior Relative humidity the second relative humidity determine the indoor absolute humidity the second absolute humidity；Absolutely described second In the case that humidity is more than first absolute humidity, stop the air-supply of the air supplying part, closes the air outlet, control The heat exchanger is carried out to cooling dehumidifying operating under the dew-point temperature.
Moreover, the air conditioning control method that another embodiment of the present invention is related to, controls air conditioning using processor Device, the conditioner have the heat exchanger that indoor air and refrigerant are carried out heat exchange, conveying by the heat The air supplying part of exchanger air after cooling and for indoor sending the air delivery conveyed by the air supplying part to described The air conditioning control method: air port obtains the first temperature for indicating predetermined temperature；Obtaining indicates the indoor temperature Second temperature；So that the air supplying part is blown, open the air outlet, according to the adjacent refrigeration operation in time series Actuation time and dwell time difference, determine that the refrigeration operation of the cooling heat exchanger and the cooling heat exchanger carry out The switching of the dehumidifying operating of the indoor dehumidifying, to allow the second temperature to reach first temperature, and according to from institute It states refrigeration operation and is switched to the judgement of the dehumidifying operating as a result, the refrigeration operation is switched to the dehumidifying operating.
Moreover, the air conditioning control method that another embodiment of the present invention is related to, controls air conditioning using processor Device, the conditioner have the heat exchanger that indoor air and refrigerant are carried out heat exchange, conveying by the heat The air supplying part of exchanger air after cooling and for indoor sending the air delivery conveyed by the air supplying part to described The air conditioning control method: air port obtains the first temperature for indicating predetermined temperature；Obtaining indicates the indoor temperature Second temperature；Obtain the third temperature for indicating the temperature of the outdoor；So that the air supplying part is blown, open the air outlet, According to first temperature or the second temperature and the third temperature difference, the refrigeration fortune of the cooling heat exchanger is determined Turn and the cooling heat exchanger carries out the switching that the dehumidifying of the indoor dehumidifying operates, to allow the second temperature to reach First temperature, and the judgement operated that dehumidifies is switched to as a result, by the refrigeration operation according to from the refrigeration operation It is switched to the dehumidifying operating.
In addition, embodiments described below indicates master or specific example.In addition, shown in following implementation Numerical value, shape, structure element, step, the sequence of step etc. be an example, purport does not lie in the restriction present invention.In addition, about with The structural element that do not recorded in the independent claims for indicating upper concept in structural element in lower embodiment, as Arbitrary structural element is illustrated.In addition, in whole embodiments, additionally it is possible to arbitrarily combine respective content.
In the following, being explained with reference to embodiments of the present invention.
(embodiment 1)
Fig. 2 is the block diagram for indicating an example of structure of the conditioner in an embodiment of the invention.Fig. 2 institute The conditioner shown is for example made of air-conditioning etc., has indoor unit 200 and outdoor unit 201.
Indoor unit 200 have indoor relative humidity setting value maintaining part 202, room temperature setting value maintaining part 203, absolutely Humidity set point calculation part 204, indoor relative humidity test section 205, room temperature test section 206, absolute humidity calculation part 207, absolute humidity comparing section 208, dew-point temperature calculating portion 209, room temperature comparing section 210, heat exchanger temperature setting value Calculation part 211, heat exchanger set temperature selector 212, indoor and outdoor temperature comparing section 214, action mode determination unit 215, heat Exchanger temperature detecting part 216, heat exchanger temperature compare to determine portion 217, indoor heat exchanger 220, indoor machine fan/blowout Mouth movement setting maintaining part 221, indoor machine fan/blow-off outlet act determination unit 222, indoor machine fan/blow-off outlet control unit 223, indoor machine fan 224 and blow-off outlet 225.Outdoor unit 201 has outdoor temperature test section 213, compressor 218 and pressure Contracting machine control unit 219.
Indoor relative humidity setting value maintaining part 202 is obtained and is maintained by user or the manufacturer of conditioner etc. The setting value of the indoor relative humidity such as the bedroom of setting is as setting relative humidity U1.Setting relative humidity U1 is to indicate pre- An example of first relative humidity of the relative humidity first set.
Here, relative humidity is the amount of moisture (saturated steam for indicating the maximum limit that may include in the air with certain temperature Amount) in comparison comprising which kind of degree moisture value, with [%RH] indicate.For example, relative humidity 100%RH is " in air Cannot be comprising than its more vapor " state as (saturated air).Saturated steam amount increases if temperature rises, If temperature decline if saturated steam amount reduce, even therefore identical amount of moisture, the relative humidity if temperature change Also change.When indoor relative humidity is more than 60%RH, it is difficult to fall asleep, therefore can be by the value in the range of 50~60%RH As setting relative humidity U1.In the present embodiment, such as 50%RH is used.In addition, setting relative humidity U1 is not limited especially Due to the example, it is able to use user and feels humidity various values appropriate.
Room temperature setting value maintaining part 203 is obtained and is maintained and set by manufacturer of user or conditioner etc. The indoor temperature such as bedroom setting value as set temperature T1.Set temperature T1 is indicate predetermined temperature An example of one temperature.
It is exhausted that absolute humidity preset value calculation portion 204 obtains the target determined according to set temperature T1 and setting relative humidity U1 To humidity D1.Specifically, absolute humidity preset value calculation portion 204 obtains setting temperature from room temperature setting value maintaining part 203 T1 is spent, obtains setting relative humidity U1 from indoor relative humidity setting value maintaining part 202, it is opposite according to set temperature T1 and setting Humidity U1 calculates target absolute humidity D1.Target absolute humidity D1 is the indoor target absolute humidity indicated as target value An example of first absolute humidity.
Here, there is the weight absolute humidity (kg/ for indicating the steam vapour amount (kg) in dry air 1kg in absolute humidity Kg (DA)) and expression air 1m3In steam vapour amount (g) volume absolute humidity (g/m3).Even if temperature change, absolute humidity Value also do not change.In the present embodiment, as target absolute humidity D1, such as volume absolute humidity (g/m is used3).Tool Say to body, using the air line chart (chart) for the formula for indicating Tetens, pre-production indicate main temperature and relative humidity with The map table of the corresponding relationship of absolute humidity calculates absolute humidity using the map table.
Fig. 3 is that indicate that absolute humidity preset value calculation shown in Fig. 2 portion 204 uses to find out absolute humidity absolute The figure of an example of varying humidity table.In addition, in Fig. 3, in order to be easy table note, by the unit of relative humidity simply with [%] come It indicates.
Absolute humidity map table shown in Fig. 3 is stored in advance in internal storage by absolute humidity preset value calculation portion 204 It is absolute according to relative humidity calculation target represented by room temperature represented by set temperature T1 and setting relative humidity U1 in device etc. Humidity D1.Such as the room temperature represented by set temperature T1 be 28 DEG C and set relative humidity represented by relative humidity U1 as In the case where 50%, 11.8g/m is calculated3As target absolute humidity D1.
In addition, absolute humidity map table shown in Fig. 3 is made of arithmetic expression is replaced into table, but it is not particularly limited in The example.For example, it is also possible to using according to manufacturer's specification of air conditioning assembling device, the area in bedroom, air conditioning dress dress Set the map table with the positional relationship of bed etc. multiplied by regulation coefficient.In addition, the calculation method of absolute humidity is not particularly limited in The example stated.It carries out the various changes such as calculating for example, being able to carry out using approximate expressions such as the formulas of well known Tetens.About this A little aspects, aftermentioned absolute humidity calculation part 207 are also the same.
Indoor relative humidity test section 205 is made of humidity sensor etc., is detected and is obtained the room for being provided with indoor unit 200 Interior relative humidity is as indoor relative humidity U2.Indoor relative humidity U2 is indicate current indoor relative humidity An example of two relative humidity.
Room temperature test section 206 is made of temperature sensor etc., is detected and is obtained the bedroom etc. for being provided with indoor unit 200 Indoor temperature is as room temperature T2.Room temperature T2 is an example for indicating the second temperature of current indoor temperature.
Absolute humidity calculation part 207 obtains the indoor absolute humidity determined according to room temperature T2 and indoor relative humidity U2 D2.Specifically, absolute humidity calculation part 207 obtains room temperature T2 from room temperature test section 206, from indoor relative humidity Test section 205 obtains indoor relative humidity U2, calculates indoor absolute humidity D2 according to room temperature T2 and indoor relative humidity U2. Indoor absolute humidity D2 is an example for indicating the second absolute humidity of current indoor absolute humidity.In the present embodiment, Absolute humidity calculation part 207 for example in the same manner as absolute humidity preset value calculation portion 204, is become using absolute humidity shown in Fig. 3 Table is changed, indoor absolute humidity D2 is calculated according to room temperature T2 and indoor relative humidity U2.
Absolute humidity comparing section 208 by by the calculated current indoor absolute humidity D2 of absolute humidity calculation part 207 with It is compared, is calculated from current interior absolutely by the calculated target absolute humidity D1 in absolute humidity preset value calculation portion 204 Humidity D2 subtracts absolute humidity difference Δ t4 obtained from target absolute humidity D1.
Dew-point temperature calculating portion 209 obtains the dew-point temperature TD determined according to set temperature T1 and setting relative humidity U1. Specifically, dew-point temperature calculating portion 209 obtains set temperature T1 from room temperature setting value maintaining part 203, it is opposite from interior Humidity set point maintaining part 202 obtains setting relative humidity U1, calculates dew point according to set temperature T1 and setting relative humidity U1 Temperature TD.
Here, dew-point temperature refers to temperature when moisture and carrying out air to cool down in air starts moisture condensation.? That is the temperature of air when dew-point temperature is state of the relative humidity for 100%RH.In the present embodiment, such as in advance First production indicates the map table of the corresponding relationship of temperature (dry bulb) and relative humidity and dew-point temperature, is calculated using the map table Dew-point temperature.
Fig. 4 is to indicate that the dew-point temperature that dew-point temperature calculating shown in Fig. 2 portion 209 uses to find out dew-point temperature becomes Change the figure of an example of table.In addition, in order to be easy table note, the unit of relative humidity is simply indicated with [%] in Fig. 4.
Dew-point temperature map table shown in Fig. 4 is stored in advance in internal memory etc. by dew-point temperature calculating portion 209, According to relative humidity calculation dew-point temperature TD represented by room temperature represented by set temperature T1 and setting relative humidity U1.Such as The case where room temperature represented by set temperature T1 is 28 DEG C and sets relative humidity represented by relative humidity U1 as 50% Under, 16.6 DEG C are calculated as dew-point temperature TD.
In addition, dew-point temperature map table shown in Fig. 4 is made of arithmetic expression is replaced into table, but it is not particularly limited in The example.For example, it is also possible to using according to manufacturer's specification of conditioner, the area in bedroom, air conditioning assembling device With the positional relationship of bed etc. multiplied by the map table of regulation coefficient.In addition, the calculation method of dew-point temperature be not particularly limited in it is above-mentioned Example.It carries out the various changes such as calculating for example, being able to carry out using well known approximate expression etc..
Room temperature comparing section 210 by the room temperature T2 detected by room temperature test section 206 with from room temperature The set temperature T1 that setting value maintaining part 203 obtains is compared, and calculating subtracts set temperature T1 from room temperature T2 and obtains Set temperature difference Δ t1.
Heat exchanger temperature preset value calculation portion 211 calculates the system of indoor heat exchanger 220 based on set temperature difference Δ t1 The set temperature HT of blowdown firing mode.
Outdoor temperature test section 213 is made of temperature sensor etc., is detected and is obtained outside the room for being provided with outdoor unit 201 i.e. Outdoor temperature is as outdoor temperature T3.Outdoor temperature T3 is an example for indicating the third temperature of outdoor temperature.
Indoor and outdoor temperature comparing section 214 is by the set temperature T1 obtained from room temperature setting value maintaining part 203 and by room The current outdoor temperature T3 that outer temperature detecting part 213 detects is compared, and is calculated from set temperature T1 and is subtracted outdoor temperature Inside and outside temperature difference Δ t2 obtained from T3.In addition, inside and outside temperature difference Δ t2 is not particularly limited in above-mentioned example.For example, can also To be, indoor and outdoor temperature comparing section 214 is by the current room temperature T2 detected by room temperature test section 206 and by outdoor The current outdoor temperature T3 that temperature detecting part 213 detects is compared, and is calculated from room temperature T2 and is subtracted outdoor temperature T3 Obtained from value as inside and outside temperature difference Δ t2.In this example embodiment, in the case where accurately detecting room temperature T2, energy It is enough accurately to determine the aftermentioned switching from cooling operation pattern to dehumidifying operation mode of forcing to condense, it can reliably will be indoor It is set as the state of proper temperature and appropriate humidity.
Action mode determination unit 215 is based on inside and outside temperature difference Δ t2, determines that current action mode is cooling operation pattern With which of operation mode etc. action mode that dehumidifies of forcing to condense.Here, the air conditioning based on cooling operation pattern fills The operating set is an example of refrigeration operation, and the operating based on the conditioner for forcing moisture condensation dehumidifying operation mode is dehumidifying fortune An example turned.
Specifically, action mode determination unit 215 is defined threshold value 3 (such as 3 DEG C) or more in inside and outside temperature difference Δ t2 In the case where, current action mode is judged to force moisture condensation dehumidifying operation mode, is not threshold value 3 in inside and outside temperature difference Δ t2 In the case where above, current action mode is determined as cooling operation pattern.In addition, threshold value 3 be not particularly limited in it is above-mentioned Example is able to use various values.
Action mode determination unit 215 after current action mode to be judged to forcing moisture condensation dehumidifying operation mode, Inside and outside temperature difference Δ t2 is to be judged to current action mode freeze fortune in defined threshold value 6 (such as 0 DEG C) situation below Current action mode in the case where inside and outside temperature difference Δ t2 is not the situation below of threshold value 6 is judged to that moisture condensation is forced to be removed by rotary-die type Wet operation mode.In addition, threshold value 6 is not particularly limited in above-mentioned example, it is able to use various values.
Indoor machine fan/blow-off outlet movement setting maintaining part 221 keep in advance and be stored with for cooling operation pattern and Force the indoor machine fans 224 of action modes setting such as moisture condensation dehumidifying operation mode and the action state of blow-off outlet 225.
Indoor machine fan/blow-off outlet movement determination unit 222 sets maintaining part 221 referring to indoor machine fan/blow-off outlet movement, Determine moving for corresponding with the action mode determined by action mode determination unit 215 indoor machine fan 224 and blow-off outlet 225 Make.
Indoor machine fan/blow-off outlet control unit 223 controls the movement of indoor machine fan 224 and blow-off outlet control unit 223, makes Obtaining becomes the movement determined by indoor machine fan/blow-off outlet movement determination unit 222.
Indoor machine fan 224 is an example for conveying the air supplying part by the air after cooling of indoor heat exchanger 220.Indoor unit Fan 224 is conveyed in cooling operation pattern by the air after cooling of indoor heat exchanger 220, is forcing the dehumidifying operational mode that condenses It is out-of-blast when formula.
Blow-off outlet 225 is an example of the air delivery for will be conveyed by indoor machine fan 224 to indoor air outlet.It blows Outlet 225 is made of shutter etc..Blow-off outlet 225 is opened in cooling operation pattern, and adjustment is from indoor machine fan 224 to room The direction of the air of interior conveying is closed when forcing to condense dehumidifying operation mode.
Specifically, in the case where action mode determination unit 215 is determined as cooling operation pattern, indoor machine fan/blow Control of export portion 223 makes indoor machine fan 224 blow, and opens blow-off outlet 225.In addition, determining in action mode determination unit 215 In the case where for dehumidifying operation mode of forcing to condense, indoor machine fan/blow-off outlet control unit 223 stops indoor machine fan 224, Close blow-off outlet 225.
In addition, the movement of moisture condensation dehumidifying operating is forced to be not particularly limited in above-mentioned example.For example, it is also possible to forcing to tie When dew dehumidifying operating, indoor machine fan 224 is set to blow, or open blow-off outlet 225.Alternatively, it is also possible to replace forcing moisture condensation Dehumidifying operates and well known dehumidifying is used to operate.As the mode of well known dehumidifying operating, exists to dehumidify and heat will be passed through The mode and submitting should after making through heat exchanger cooled air heating that exchanger cooled air is directly sent out The dehumidifying operating of any mode can be used in the mode of air.For example, also can be used above-mentioned as the former mode The weak refrigerated dehumidification operatings such as excessive throttling refrigeration operating disclosed in patent document 1, as the mode of the latter, also can be used The reheating dry operating disclosed Patent Document 2 stated.
Heat exchanger set temperature selector 212 is the case where action mode determination unit 215 is determined as cooling operation pattern Under, select the set temperature HT by the calculated cooling operation pattern in heat exchanger temperature preset value calculation portion 211.In addition, Heat exchanger set temperature selector 212 is determined as the case where forcing moisture condensation dehumidifying operation mode in action mode determination unit 215 Under, it selects by the calculated dew-point temperature TD in dew-point temperature calculating portion 209.
Indoor heat exchanger 220 is an example that indoor air and refrigerant are carried out to the heat exchanger of heat exchange.Specifically Ground is said, in cooling operation pattern and forces to use the refrigerant sprayed from compressor 218 in moisture condensation dehumidifying operation mode.It is outdoor The outdoor heat exchanger (illustration omitted) of machine 201 works as condenser, and indoor heat exchanger 220 is acted as evaporator With thus indoor air is cooled down.
Heat exchanger temperature test section 216 is made of temperature sensor etc., detects the current temperature of indoor heat exchanger 220 T4 is spent as heat exchanger temperature T4.
In the case where action mode determination unit 215 is determined as cooling operation pattern, heat exchanger temperature compares to determine portion 217 by the current temperature T4 of the indoor heat exchanger 220 detected by heat exchanger temperature test section 216 and by heat exchanger The set temperature HT for the cooling operation pattern that set temperature selector 212 selects is compared.Heat exchanger temperature is relatively sentenced Determine the comparison result of the set temperature HT of temperature T4 of the portion 217 based on indoor heat exchanger 220 and cooling operation pattern, control Indoor heat exchanger 220 is carried out to cooling refrigeration operation, so that room temperature T2 becomes set temperature T1.Specifically, hot Exchanger temperature compares to determine portion 217 and controls using compressor control portion 219 rotation of compressor 218.Compressor control portion 219, according to the control instructions for comparing to determine portion 217 from heat exchanger temperature, control the compressor 218 in cooling operation pattern Revolving speed.
On the other hand, in the case where action mode determination unit 215 is judged to forcing moisture condensation dehumidifying operation mode, heat exchange Device temperature compares to determine portion 217 for the current temperature of the indoor heat exchanger 220 detected by heat exchanger temperature test section 216 Degree T4 is compared with the dew-point temperature TD selected by heat exchanger set temperature selector 212.Heat exchanger temperature is relatively sentenced The comparison result for determining the portion 217 temperature T4 based on indoor heat exchanger 220 and dew-point temperature TD, in current indoor absolute humidity In the case that D2 is more than target absolute humidity D1, indoor heat exchanger 220 is carried out the strong of cooling by control at dew-point temperature TD System moisture condensation dehumidifying operating.Pressure is controlled using compressor control portion 219 specifically, heat exchanger temperature compares to determine portion 217 The rotation of contracting machine 218.Compressor control portion 219 is according to the control instructions for comparing to determine portion 217 from heat exchanger temperature, control Force the revolving speed of the compressor 218 in moisture condensation dehumidifying operation mode.
In addition, it is more than outdoor temperature that heat exchanger temperature, which compares to determine portion 217 in set temperature T1 (or room temperature T2), In the case where T3, start to force moisture condensation dehumidifying operating.
In addition, in the case where action mode determination unit 215 is judged to forcing moisture condensation dehumidifying operation mode, heat exchanger temperature Degree compares to determine portion 217 during current indoor absolute humidity D2 is more than target absolute humidity D1, continues indoor heat exchange Cooling of the device 220 at dew-point temperature TD.In addition, heat exchanger temperature compares to determine the temperature of the heat exchanger 220 indoors of portion 217 T4 is spent not less than during dew-point temperature TD, continues the cooling of indoor heat exchanger 220.In addition, heat exchanger temperature is relatively sentenced Portion 217 is determined in dehumidifying operating of forcing to condense, it can also be after absolute humidity D2 reaches target absolute humidity D1 indoors, by room Inside heat exchanger 220 is cooled down, so that interior absolute humidity D2 is in (example in the prescribed limit comprising target absolute humidity D1 Range such as 0.5 DEG C).
Specifically, heat exchanger temperature compares to determine portion 217 and sentences in the case where action mode is cooling operation pattern Break by whether the calculated set temperature difference Δ t1 of room temperature comparing section 210 is defined threshold value 1 (such as 2 DEG C) or more.This Outside, threshold value 1 is not particularly limited in above-mentioned example, is able to use various values.
In the case where set temperature difference Δ t1 is 1 or more threshold value, heat exchanger temperature compares to determine portion 217 and uses compression Machine control unit 219, starting compressor 218 cool down indoor heat exchanger 220 at set temperature HT.On the other hand, In the case where set temperature difference Δ t1 is not 1 or more threshold value, heat exchanger temperature compares to determine portion 217 and uses compressor control Portion 219 carrys out close compressor 218.
In addition, heat exchanger temperature compares to determine portion 217 after starting compressor 218, set temperature difference Δ t1 is judged Whether be as defined in threshold value 2 (such as 0 DEG C) below.In addition, threshold value 2 is not particularly limited in above-mentioned example, it is able to use various Value.
In the case where set temperature difference Δ t1 is the situation below of threshold value 2, heat exchanger temperature compares to determine portion 217 and uses compression Machine control unit 219 carrys out close compressor 218.On the other hand, in the case where set temperature difference Δ t1 is not the situation below of threshold value 2, heat Exchanger temperature compares to determine portion 217 and continues the starting operation of compressor 218 to continue indoor heat exchanger 220 in set temperature Cooling under HT.As a result, the following movement repeatedly of compressor 218: it is activated when set temperature difference Δ t1 is 1 or more threshold value, It is closed when set temperature difference Δ t1 is 2 or less threshold value.In this way, carry out refrigeration operation make room temperature T2 become set Determine temperature T1.
On the other hand, in the case where action mode is to force moisture condensation dehumidifying operation mode, heat exchanger temperature is relatively sentenced Determine portion 217 to select the heat exchanger temperature T4 detected by heat exchanger temperature test section 216 with by heat exchanger set temperature The dew-point temperature TD for selecting the selection of portion 212 is compared, and calculates the dew point temperature that target value is subtracted from current heat exchanger temperature T4 Spend heat exchanger temperature difference Δ t3 obtained from TD.Heat exchanger temperature compares to determine portion 217 and judges heat exchanger temperature difference Δ Whether t3 is greater than defined threshold value 4 (such as 0 DEG C).In addition, threshold value 4 is not particularly limited in above-mentioned example, it is able to use various Value.
In the case where heat exchanger temperature difference Δ t3 is greater than threshold value 4, heat exchanger temperature compares to determine portion 217 and uses pressure Contracting machine control unit 219 starts compressor 218, and indoor heat exchanger 220 cooled down at dew-point temperature TD.Another party Face, in the case where heat exchanger temperature difference Δ t3 is not more than threshold value 4, heat exchanger temperature compares to determine portion 217 and uses compression Machine control unit 219 carrys out close compressor 218.
In addition, heat exchanger temperature compares to determine portion 217 after starting compressor 218, absolute humidity difference Δ t4 is judged Whether defined threshold value 5 (such as 0g/m is greater than3).In the case where absolute humidity difference Δ t4 is not more than threshold value 5, heat exchanger temperature Degree compares to determine portion 217 and carrys out close compressor 218 using compressor control portion 219.In addition, threshold value 5 be not particularly limited in it is above-mentioned Example, be able to use various values.
As described above, action mode determination unit 215 according to set temperature T1 (or room temperature T2) and outdoor temperature T3 it Difference determines the switching from refrigeration operation to pressure moisture condensation dehumidifying operating.Specifically, action mode determination unit 215 is in setting temperature In the case where spending the difference of T1 (or room temperature T2) and outdoor temperature T3 for 3 or more threshold value, determine to tie from refrigeration operation to pressure The switching of dew dehumidifying operating.
In addition, heat exchanger temperature, which compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223, makes indoor machine wind 224 air-supply of fan, opens blow-off outlet 225, and indoor heat exchanger 220 is carried out cooling so that room temperature T2 becomes setting by control The refrigeration operation of temperature T1.Heat exchanger temperature, which compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223, makes interior Machine fan 224 stop, making blow-off outlet 225 close, control indoor heat exchanger 220 is cooled down at dew-point temperature TD into The pressure moisture condensation dehumidifying operating of the indoor dehumidifying of row.Moreover, heat exchanger temperature compares to determine portion 217 and indoor machine fan/blow It is removed according to the judgement of the switching of action mode determination unit 215 as a result, refrigeration operation is switched to pressure moisture condensation in control of export portion 223 Wet operating.
In the present embodiment, absolute humidity preset value calculation portion 204 is an example of the first acquisition unit or the first calculation part, Dew-point temperature calculating portion 209 is an example of the second acquisition unit or the second calculation part, and absolute humidity calculation part 207 is third acquisition unit Or an example of third calculation part, heat exchanger temperature compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 is control An example in portion processed.In addition, outdoor temperature test section 213 is an example of the 4th acquisition unit.
In addition, room temperature setting value maintaining part 203 is an example of another the first acquisition unit, room temperature test section 206 be an example of another the second acquisition unit, and outdoor temperature test section 213 is an example of another third acquisition unit.Act mould Formula determination unit 215 is an example of determination unit, and heat exchanger temperature compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 be an example of another control unit.
Here, absolute humidity preset value calculation portion 204, dew-point temperature calculating portion 209, absolute humidity calculation part 207, interior Desired temperature maintaining part 203, action mode determination unit 215, heat exchanger temperature compare to determine portion 217 and indoor machine wind Fan/blow-off outlet control unit 223 is equal to be constituted such as by processor, memory.In addition, in the present embodiment, by absolute humidity Preset value calculation portion 204, dew-point temperature calculating portion 209, absolute humidity calculation part 207, action mode determination unit 215, heat exchange Device temperature compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 etc. and is built in indoor unit 200, but not especially It is defined in the example.They part or all is built in outdoor unit 201 or is built in outside for example, being able to carry out Server or the like various changes.
Fig. 5 is the flow chart for indicating an example of humid control processing of conditioner shown in Fig. 2, and Fig. 6 is to indicate The flow chart of an example shown in fig. 5 for forcing moisture condensation dehumidifying operating processing.In the present embodiment, pass through humidity shown in fig. 5 Control processing, conditioner are switched to force moisture condensation dehumidifying operating from refrigeration operation.
As shown in figure 5, firstly, in step s 11, absolute humidity preset value calculation portion 204 for calculation process high speed, Using absolute humidity map table shown in Fig. 3, according to the set temperature T1 obtained from room temperature setting value maintaining part 203 and from The setting relative humidity U1 that indoor relative humidity setting value maintaining part 202 obtains calculates target absolute humidity D1.
Then, in step s 12, dew-point temperature calculating portion 209 uses dew shown in Fig. 4 for calculation process high speed Point temperature inversion table, sets according to the set temperature T1 obtained from room temperature setting value maintaining part 203 and from indoor relative humidity The setting relative humidity U1 that definite value maintaining part 202 obtains calculates dew-point temperature TD.
Here, setting comparison result of the action mode determination unit 215 based on indoor and outdoor temperature comparing section 214 for current movement Mode is determined as cooling operation pattern.In this case, in step S13~S21, refrigeration operation below is carried out.
Firstly, in step s 13, action mode determination unit 215 is made to indoor machine fan/instruction of blow-off outlet control unit 223 Blowdown firing mode, indoor machine fan/blow-off outlet control unit 223 controls the setting position of blow-off outlet 225 to be made for aperture position Blow-off outlet 225 is opened.
Then, in step S14, indoor machine fan/blow-off outlet control unit 223 is by the setting air quantity of indoor machine fan 224 Control is starting state, start indoor machine fan 224 from blow-off outlet 225 to indoor air-supply.
Then, in step S15, room temperature comparing section 210 obtains room temperature T2 from room temperature test section 206, And obtain set temperature T1 from room temperature setting value maintaining part 203, calculate subtract set temperature T1 from room temperature T2 and Obtained set temperature difference Δ t1.
Then, in step s 16, heat exchanger temperature compares to determine portion 217 and judges whether set temperature difference Δ t1 is threshold It is more than value 1 (such as 2 DEG C).Heat exchanger temperature compares to determine portion 217 and is being judged as that set temperature difference Δ t1 is not 1 or more threshold value In the case where ("No" in step S16), in step S18, using compressor control portion 219, close compressor 218 stops it Only.Later, step S15 later processing continues.
On the other hand, heat exchanger temperature compares to determine portion 217 and is being judged as that set temperature difference Δ t1 is threshold value 1 or more In the case of ("Yes" in step s 16) using compressor control portion 219, start compressor 218 in step S17 to keep it dynamic Make, indoor heat exchanger 220 is cooled down at set temperature HT.
Then, in step S19, room temperature comparing section 210 obtains room temperature T2 from room temperature test section 206, And obtain set temperature T1 from room temperature setting value maintaining part 203, calculate subtract set temperature T1 from room temperature T2 and Obtained set temperature difference Δ t1.
Then, in step S20, heat exchanger temperature compares to determine portion 217 and judges whether set temperature difference Δ t1 is threshold Value 2 (such as 0 DEG C) is below.Heat exchanger temperature compares to determine portion 217 and is being judged as that set temperature difference Δ t1 is not 2 or less threshold value In the case where ("No" in step s 16), processing is transferred to step S19.Later, step S19 later processing continues.
On the other hand, heat exchanger temperature compare to determine portion 217 be judged as set temperature difference Δ t1 be threshold value 2 it is below In the case of ("Yes" in step S20), in the step s 21, using compressor control portion 219, close compressor 218 stops it Only.
Then, in step S22, indoor and outdoor temperature comparing section 214 is obtained from room temperature setting value maintaining part 203 and is set Temperature T1, and obtain outdoor temperature T3 from outdoor temperature test section 213, calculate subtract outdoor temperature T3 from set temperature T1 and Obtained inside and outside temperature difference Δ t2.
Then, in step S23, action mode determination unit 215 judges whether inside and outside temperature difference Δ t2 is threshold value 3 (such as 3 DEG C) more than.Action mode determination unit 215 is in the case where being judged as that inside and outside temperature difference Δ t2 is not 3 or more threshold value (in step "No" in S23), current action mode is determined as cooling operation pattern, processing is transferred to step S15.Later, step S15 later processing continues.
On the other hand, action mode determination unit 215 is in the case where being judged as inside and outside temperature difference Δ t2 is 3 or more threshold value Current action mode is judged to forcing moisture condensation dehumidifying operation mode that will locate in step s 24 by ("Yes" in step S23) Reason is transferred to pressure moisture condensation dehumidifying operating processing shown in fig. 6.
As shown in fig. 6, in forcing moisture condensation dehumidifying operating processing, firstly, in step S31, action mode determination unit 215 Moisture condensation dehumidifying operation mode, indoor machine fan/blow-off outlet control unit are forced to indoor machine fan/instruction of blow-off outlet control unit 223 The setting position of blow-off outlet 225 is controlled and closes blow-off outlet 225 for detent position by 223.
Then, in step s 32, indoor machine fan/blow-off outlet control unit 223 closes indoor machine fan 224 to stop, Stop from blow-off outlet 225 to indoor air-supply.
Then, in step S33, heat exchanger temperature compares to determine portion 217 and calculates from by heat exchanger temperature test section The 216 heat exchanger temperature T4 detected subtract the indoor heat exchanger 220 selected by heat exchanger set temperature selector 212 Dew-point temperature TD obtained from heat exchanger temperature difference Δ t3.
Then, in step S34, heat exchanger temperature compares to determine whether portion 217 judges heat exchanger temperature difference Δ t3 Greater than threshold value 4 (such as 0 DEG C).Heat exchanger temperature compares to determine portion 217 and is being judged as that heat exchanger temperature difference Δ t3 is not more than ("No" in step S34) uses compressor control portion 219, close compressor 218 in step S36 in the case where threshold value 4 To make its stopping.Later, step S33 later processing continues.
On the other hand, heat exchanger temperature compare to determine portion 217 be judged as heat exchanger temperature difference Δ t3 be greater than threshold value 4 In the case where ("Yes" in step S34) using compressor control portion 219, start compressor 218 for room in step s 35 Inside heat exchanger 220 is cooled down at dew-point temperature TD.
Then, in step S37, absolute humidity calculation part 207 is for calculation process high speed, using shown in Fig. 3 exhausted To varying humidity table, according to the room temperature T2 detected by room temperature test section 206 and by indoor relative humidity test section The 205 indoor relative humidity U2 detected calculate current indoor absolute humidity D2.
Then, in step S38, the calculating of absolute humidity comparing section 208 is worked as from by absolute humidity calculation part 207 is calculated Preceding indoor absolute humidity D2 is subtracted as obtained from the calculated target absolute humidity D1 in absolute humidity preset value calculation portion 204 Absolute humidity difference Δ t4.
Then, in step S39, heat exchanger temperature compares to determine portion 217 and judges whether absolute humidity difference Δ t4 is greater than Threshold value 5 (such as 0g/m3).Heat exchanger temperature compares to determine portion 217 in the feelings for being judged as absolute humidity difference Δ t4 greater than threshold value 5 Under condition ("Yes" in step S39), processing is transferred to step S33.Later, step S33 later processing continues.
On the other hand, heat exchanger temperature compares to determine portion 217 and is being judged as absolute humidity difference Δ t4 no more than threshold value 5 In the case of ("No" in step S39), in step s 40, using compressor control portion 219, close compressor 218 stops it Only.
Then, in step S41, indoor and outdoor temperature comparing section 214 is obtained from room temperature setting value maintaining part 203 and is set Temperature T1, and obtain outdoor temperature T3 from outdoor temperature test section 213, calculate subtract outdoor temperature T3 from set temperature T1 and Obtained inside and outside temperature difference Δ t2.
Then, in step S42, action mode determination unit 215 judges whether inside and outside temperature difference Δ t2 is threshold value 6 (such as 0 DEG C) below.Action mode determination unit 215 is in the case where being judged as that inside and outside temperature difference Δ t2 is the situation below of threshold value 6 (in step S42 Middle "Yes"), in step S44, current action mode is determined as cooling operation pattern, terminates to force moisture condensation dehumidifying operating, Step S25 shown in fig. 5 is returned process to later.
On the other hand, action mode determination unit 215 is in the case where being judged as that inside and outside temperature difference Δ t2 is not the situation below of threshold value 6 ("No" in step S42), in step S43, judged whether to it is using remote controler (illustration omitted) etc., by user into Capable pressure moisture condensation dehumidifying operating stops operation.Action mode determination unit 215 be judged as carried out it is by the user strong System moisture condensation dehumidifying operating stop operation in the case where ("Yes" in step S43), in step S44, by current movement mould Formula is determined as cooling operation pattern, terminates to force moisture condensation dehumidifying operating, returns process to step S25 shown in fig. 5 later.Separately On the one hand, action mode determination unit 215 be judged as do not carry out it is by the user force moisture condensation dehumidifying operating stop operation In the case where ("No" in step S43), processing is transferred to step S37.Later, step S37 later processing continues.
After in above-mentioned pressure moisture condensation dehumidifying operating, processing terminate, in step S25 shown in Fig. 5, action mode is sentenced Determine portion 215 to have judged whether to stop operation using the refrigeration operation by the user of remote controler (illustration omitted) etc.. Action mode determination unit 215 be judged as carried out refrigeration operation by the user in the case where stopping operation (in step "Yes" in S25), in step S26, terminates refrigeration operation, end processing.On the other hand, action mode determination unit 215 is judging In the case where not carrying out the stopping operation of refrigeration operation by the user ("No" in step s 25), processing is transferred to Step S13.Later, step S13 later processing continues.
Fig. 7 is the figure for indicating an example of action state of conditioner shown in Fig. 2.The action state of Fig. 7 is shown It set temperature T1 is set as 28 DEG C, threshold value 1 is set as to 2 DEG C, threshold value 2 is set as to 0 DEG C, threshold value 3 is set as to 3 DEG C, sets threshold value 4 0g/m is set as 0 DEG C, by threshold value 53, threshold value 6 is set as 0 DEG C in the case where an example.
As shown in fig. 7, firstly, the set temperature T1 of refrigeration operation is changed to 28 DEG C from 25 DEG C, pressure in the moment t11 that go to bed Contracting machine 218 is closed.Later, room temperature T2 and heat exchanger temperature T4 rises, until room temperature T2 becomes than setting temperature Until 30 DEG C of the refrigeration operation movement start time t12 of high 2 DEG C of degree T1 (28 DEG C), compressor 218 is in close state.This When, indoor absolute humidity D2 also rises.
Then, start time t12 is acted in refrigeration operation, compressor 218 is activated.At this point, room temperature T2 and Re Jiao Parallel operation temperature T4 decline, indoor absolute humidity D2 slowly rise.
Then, stop timing t13 is acted in refrigeration operation, when room temperature T2 reaches set temperature T1 (28 DEG C), pressure Contracting machine 218 is closed.At this point, indoor absolute humidity D2 is further up.
Here, outdoor temperature T3 declines with time going by, become in outdoor temperature T3 than set temperature T1 (28 DEG C) low 3 DEG C of 25 DEG C of pressure moisture condensation dehumidifying motion start time t14, pressure moisture condensation dehumidifying is switched to from refrigeration operation Operating.That is, compressor 218 is activated, indoor heat exchanger 220 is cooled at dew-point temperature TD, therefore moisture condensation is being forced to be removed Wet motion maintains start time t15, heat exchanger temperature T4 to reach dew-point temperature TD.At this point, under indoor absolute humidity D2 Drop.
Then, closing/starting based on the compressor 218 for forcing moisture condensation dehumidifying operating is repeated, thus heat exchanger Temperature T4 is maintained dew-point temperature TD, reaches moment t16 in target absolute humidity, it is absolute that indoor absolute humidity D2 drops to target Humidity D1 (11.8g/m3)。
Later, closing/starting based on the compressor 218 for forcing moisture condensation dehumidifying operating, heat exchange is further repeated Device temperature T4 is maintained dew-point temperature TD, therefore interior absolute humidity D2 is target absolute humidity D1 (11.8g/m3) state dimension Hold the time t17 that gets up.
As above, in the present embodiment, when the difference of set temperature T1 and outdoor temperature T3 become 3 or more threshold value, from system Blowdown firing is switched to pressure moisture condensation dehumidifying operating, stops indoor machine fan 224, blow-off outlet 225 is closed, is thus taken into account Proper temperature and appropriate humidity.As a result, user will not due to supercooling, high humidity and midway wake up, can continue to comfortably sleep.
In addition, moisture condensation dehumidifying operating processing is forced to be not particularly limited in above-mentioned example.For example, it is also possible to indoors absolutely After humidity D2 reaches target absolute humidity D1, indoor heat exchanger 220 is cooled down, so that heat exchanger temperature T4 is being wrapped In the prescribed limit of the TD containing dew-point temperature, for example in the range of from dew-point temperature TD to (dew-point temperature TD+0.5~3 DEG C).
Fig. 8 is the flow chart for indicating other an examples shown in fig. 5 for forcing moisture condensation dehumidifying operating processing.In addition, in Fig. 8 In, for similarly being handled with Fig. 6, adding identical symbol and omitting detailed description.
Firstly, after execution is similarly handled with step S31~S33 shown in fig. 6 in step S31~S33, in step In S45, heat exchanger temperature compare to determine portion 217 judge heat exchanger temperature difference Δ t3 whether be threshold value 4 (such as 0 DEG C) with Under.Heat exchanger temperature compare to determine portion 217 be judged as heat exchanger temperature difference Δ t3 be the situation below of threshold value 4 under ( "Yes" in step S45), in step S36, using compressor control portion 219, close compressor 218 makes its stopping.Later, Step S33 later processing continues.
On the other hand, heat exchanger temperature compares to determine portion 217 and is being judged as that heat exchanger temperature difference Δ t3 is not threshold value 4 In situation below ("No" in step S45), judge heat exchanger temperature difference Δ t3 whether be greater than as defined in threshold value 7 (such as 0 ℃).Heat exchanger temperature compare to determine portion 217 in the case where being judged as heat exchanger temperature difference Δ t3 no more than threshold value 7 ( "No" in step S46), processing is transferred to step S33.Later, step S33 later processing continues.
On the other hand, heat exchanger temperature compare to determine portion 217 be judged as heat exchanger temperature difference Δ t3 be greater than threshold value 7 In the case where ("Yes" in step S46) using compressor control portion 219, start compressor 218 for room in step s 35 Inside heat exchanger 220 is cooled down at dew-point temperature TD.
As described above, using value identical with threshold value 4, thus executing and being removed with pressure shown in fig. 6 moisture condensation as threshold value 7 Wet operating processing is same to be handled, and the temperature of heat exchanger 220, that is, heat exchanger temperature T4 drops to dew-point temperature TD indoors Later, it is maintained dew-point temperature TD.
Then, in step S37~S39, execution is similarly handled with step S37~S39 shown in fig. 6.In step S39 In, heat exchanger temperature compares to determine portion 217 and is being judged as that absolute humidity difference Δ t4 is greater than (such as the 0g/m of threshold value 53) the case where Under ("Yes" in step S39), processing is transferred to step S33.Later, step S33 later processing continues.
On the other hand, in step S39, heat exchanger temperature compares to determine portion 217 and is being determined as absolute humidity difference Δ t4 No more than (such as the 0g/m of threshold value 53) in the case where ("No" in step S39) threshold value 7 is changed to compare threshold in step S47 The big threshold value 8 of value 7 (such as 0.5 DEG C).Later, it in step S40~S44, executes same as step S40~S44 shown in fig. 6 Processing.
Thus, absolute humidity D2 drops to after target absolute humidity D1 indoors, and heat exchanger temperature compares to determine portion 217 in the case where being judged as that heat exchanger temperature difference Δ t3 is not the situation below of threshold value 4 ("No" in step S45), in step S46 In, judge whether heat exchanger temperature difference Δ t3 is greater than threshold value 8.Heat exchanger temperature compares to determine portion 217 and is being judged as hot friendship Parallel operation temperature difference Δ t3 is not more than in the case where threshold value 8 ("No" in step S46), and processing is transferred to step S33.Later, Later processing continues.
On the other hand, heat exchanger temperature compare to determine portion 217 be judged as heat exchanger temperature difference Δ t3 be greater than threshold value 8 In the case where ("Yes" in step S46) using compressor control portion 219, start compressor 218 for room in step s 35 Inside heat exchanger 220 is cooled down at dew-point temperature TD.
As described above, threshold value 7 is changed to threshold value 8 when absolute humidity D2 drops to target absolute humidity D1 indoors, by The temperature of this indoor heat exchanger 220, that is, heat exchanger temperature T4 is maintained from dew-point temperature TD to (TD+0.5 DEG C of dew-point temperature) In the range of.
Fig. 9 is to indicate to perform the conditioner in the case that pressure moisture condensation dehumidifying operating shown in Fig. 8 is handled The figure of an example of action state.The action state of Fig. 9 shows set temperature T1 being set as 28 DEG C, threshold value 1 is set as to 2 DEG C, is incited somebody to action Threshold value 2 is set as 0 DEG C, threshold value 3 is set as to 3 DEG C, threshold value 4 is set as to 0 DEG C, threshold value 5 is set as 0g/m3, threshold value 6 is set as to 0 DEG C, will Threshold value 7 be set as 0 DEG C, threshold value 8 be set as 0.5 DEG C in the case where an example.
As shown in figure 9, the moment t11 that go to bed when from refrigeration operation reaches the air tune of moment t16 to target absolute humidity The action state of regulating device is same as Fig. 7.Then, reach moment t16 in target absolute humidity, when indoor absolute humidity D2 declines To target absolute humidity D1 (11.8g/m3) when, compressor 218, which is repeated, becomes dew-point temperature TD in heat exchanger temperature T4 When the movement that is closed, is activated when heat exchanger temperature T4 becomes (TD+0.5 DEG C of dew-point temperature).Thus, heat exchanger temperature Degree T4 is maintained in the range of from dew-point temperature TD to (TD+0.5 DEG C of dew-point temperature).As a result, until the time t17 that gets up is Only, room temperature T2 is maintained within the scope of the proper temperature of 29 DEG C of front and backs, and indoor absolute humidity D2 maintains absolute comprising target Humidity D1 (11.8g/m3) appropriate humidity range in (11.8~12.2g/m3)。
By above-mentioned pressure moisture condensation dehumidifying operating processing, when forcing to condense dehumidifying operating, absolute humidity D2 indoors After reaching target absolute humidity D1, indoor heat exchanger 220 is cooled, so that interior absolute humidity D2 is absolute comprising target In the prescribed limit of humidity D1.Therefore, interior can be set as proper temperature while preventing indoor temperature to be subcooled and fitted When the state of humidity.
(embodiment 2)
In above-mentioned embodiment 1, according to the difference of set temperature T1 or room temperature T2 and outdoor temperature T3, it will freeze Operating is switched to pressure moisture condensation dehumidifying operating.But in the present embodiment, according to adjacent refrigeration operation in time series Actuation time and dwell time difference, by refrigeration operation be switched to pressure moisture condensation dehumidifying operating.
Figure 10 is the block diagram for indicating an example of structure of the conditioner in embodiments of the present invention 2.Figure 10 institute The conditioner that shows and conditioner shown in Fig. 2 the difference is that, added the measurement of compressor start time Portion 226, compressor shut-in time measurement portion 227 and actuation time compare to determine portion 228, attached for part same as Fig. 2 Add identical symbol and omits detailed description.
Compressor 218 when compressor start time measurement department 226 obtains refrigeration operation from compressor control portion 219 it is dynamic Make state, an example of the actuation time as refrigeration operation, the cooling time of measurement indoor heat exchanger 220 indicates freezing Compressor 218 is the starting time of the time of starting state when operating.
Compressor 218 when compressor shut-in time measurement portion 227 obtains refrigeration operation from compressor control portion 219 it is dynamic Make state, an example of the dwell time as refrigeration operation, the non-cooled time of measurement indoor heat exchanger 220 indicates making The shut-in time for the time that compressor 218 is in off state when blowdown firing.
Actuation time compare to determine portion 228 by the starting time obtained from compressor start time measurement department 226 with from pressure The shut-in time that contracting organ closes the acquisition of time measurement department 227 is compared, find out in time series adjacent starting time with The time difference d1 (starting time=shut-in time -) of shut-in time.
Action mode determination unit 215 compares to determine portion 228 obtains, starting time and shut-in time according to from actuation time Time difference d1, determine from refrigeration operation to force condense dehumidifying operating switching.Specifically, action mode determination unit 215 In the case where being defined threshold value 9 (such as 35 minutes) or more with the time difference d1 of shut-in time between on startup, determine from system Switching of the blowdown firing to pressure moisture condensation dehumidifying operating.
In addition, threshold value 9 is not particularly limited in above-mentioned example, it is able to use various values.In addition, when the movement of refrigeration operation Between and dwell time be not particularly limited in above-mentioned example.For example, being able to carry out the actuation time as refrigeration operation and stopping The various changes such as the count value of counter that the time is once counted up using every regulation unit time.
Heat exchanger temperature, which compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223, makes indoor machine fan 224 Air-supply opens blow-off outlet 225, and indoor heat exchanger 220 is carried out cooling so that room temperature T2 becomes set temperature by control The refrigeration operation of T1.Heat exchanger temperature, which compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223, makes indoor machine wind Fan 224 stops, and closes blow-off outlet 225, and control is cooled down indoor heat exchanger 220 at dew-point temperature TD to carry out room The pressure moisture condensation dehumidifying operating of interior dehumidifying.Moreover, heat exchanger temperature compares to determine portion 217 and indoor machine fan/blow-off outlet Control unit 223 is according to the judgement of the switching of action mode determination unit 215 as a result, refrigeration operation is switched to pressure moisture condensation dehumidifying fortune Turn.
In addition, the movement of moisture condensation dehumidifying operating is forced to be not particularly limited in above-mentioned example.For example, it is also possible to forcing to tie When dew dehumidifying operating, indoor machine fan 224 is set to blow, or open blow-off outlet 225.Alternatively, it is also possible to replace forcing moisture condensation Dehumidifying operates and well known dehumidifying is used to operate, such as the dry fortune of above-mentioned reheating disclosed Patent Document 2 also can be used Turn.
In the present embodiment, absolute humidity preset value calculation portion 204 is an example of the first acquisition unit or the first calculation part, Dew-point temperature calculating portion 209 is an example of the second acquisition unit or the second calculation part, and absolute humidity calculation part 207 is third acquisition unit Or an example of third calculation part, heat exchanger temperature compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 is control An example in portion processed.In addition, outdoor temperature test section 213 is an example of the 4th acquisition unit.
In addition, room temperature setting value maintaining part 203 is an example of another the first acquisition unit, room temperature test section 206 be an example of another the second acquisition unit, and action mode determination unit 215 is an example of another determination unit, heat exchanger temperature Degree compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 is an example of another control unit.In addition, indoor opposite Humidity set point maintaining part 202 is an example of another third acquisition unit, indoor relative humidity test section 205 be another the 4th An example of acquisition unit, absolute humidity preset value calculation portion 204 are an example of another the first calculation part, dew-point temperature calculating portion 209 be an example of another the second calculation part, and absolute humidity calculation part 207 is an example of another third calculation part.
Here, indoor relative humidity setting value maintaining part 202, room temperature setting value maintaining part 203, absolute humidity are set It is worth calculation part 204, absolute humidity calculation part 207, dew-point temperature calculating portion 209, action mode determination unit 215, heat exchanger temperature Degree compares to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 etc. and constitutes such as by processor, memory.This Outside, in the present embodiment, by absolute humidity preset value calculation portion 204, absolute humidity calculation part 207, dew-point temperature calculating portion 209, action mode determination unit 215, heat exchanger temperature compare to determine portion 217 and indoor machine fan/blow-off outlet control unit 223 Etc. being built in indoor unit 200, but it is not particularly limited in the example.It will be in they part or all for example, being able to carry out The various changes for being placed in outdoor unit 201 or being built in external server or the like.
Figure 11 is the flow chart for indicating an example of humid control processing of conditioner shown in Fig. 10.In this implementation It in mode, is handled by humid control shown in Figure 11, conditioner is switched to force moisture condensation dehumidifying from refrigeration operation Operating.
As shown in figure 11, it is similarly handled firstly, being executed in step S11~S18 with step S11~S18 shown in fig. 5 Later, in step s 51, compression when compressor start time measurement department 226 obtains refrigeration operation from compressor control portion 219 The action state of machine 218, measure refrigeration operation when compressor 218 the starting time.
Then, it is executed in step S19~S21 after similarly being handled with step S19~S21 shown in fig. 5, in step In S52, the movement of the compressor 218 when compressor shut-in time measurement portion 227 obtains refrigeration operation from compressor control portion 219 State, measure refrigeration operation when compressor 218 shut-in time.
Then, in step S53, actuation time compares to determine portion 228 and calculates from by compressor shut-in time measurement portion 227 The shut-in time of measurement subtracts time difference d1 obtained from the starting time measured as compressor start time measurement department 226.
Then, in step S54, action mode determination unit 215 judges whether time difference d1 is threshold value 9 (such as 35 minutes) More than.In step S54, in the case where being judged as time difference d1 not is 9 or more threshold value ("No" in step S54), in step In rapid S55, room temperature comparing section 210 obtains room temperature T2 from room temperature test section 206, and sets from room temperature It is worth maintaining part 203 and obtains set temperature T1, calculates from room temperature T2 and subtract set temperature difference Δ obtained from set temperature T1 t1。
Then, in step S56, heat exchanger temperature compares to determine portion 217 and judges whether set temperature difference Δ t1 is threshold It is more than value 1 (such as 2 DEG C).Heat exchanger temperature compares to determine portion 217 and is being judged as that set temperature difference Δ t1 is not 1 or more threshold value In the case where ("No" in step S56), processing is transferred to step S21, has remained off the state of compressor 218.Then, In step S52, compressor shut-in time measurement portion 227 measure refrigeration operation when compressor 218 shut-in time.Later, Step S53 later processing continues.
On the other hand, heat exchanger temperature compares to determine portion 217 and is being judged as that set temperature difference Δ t1 is threshold value 1 or more In the case of ("Yes" in step S56) using compressor control portion 219, start compressor 218 in step S17 to keep it dynamic Make, indoor heat exchanger 220 is cooled down at set temperature HT.Then, in step s 51, the compressor start time surveys The starting time of compressor 218 when the measurement refrigeration operation of amount portion 226.Later, step S19 later processing continues.
On the other hand, in step S54, in the case where being judged as that time difference d1 is 9 or more threshold value (in step S54 "Yes"), in step s 24, pressure moisture condensation dehumidifying operating processing shown in Fig. 8 is executed in the same manner as embodiment 1.Later, exist Step S25, it executes in S26 and is similarly handled with step S25, S26 shown in fig. 5, processing terminate.In addition, holding in step s 24 Capable pressure moisture condensation dehumidifying operating processing is not particularly limited in above-mentioned example.For example, being able to carry out execution figure in step s 24 The various changes such as pressure moisture condensation dehumidifying operating processing shown in 6.
Figure 12 is the figure for indicating an example of action state of conditioner shown in Fig. 10.The action state of Figure 12 shows Gone out execution pressure shown in Fig. 8 moisture condensation dehumidifying operating processing and set temperature T1 be set as 28 DEG C, threshold value 1 is set as to 2 DEG C, will Threshold value 2 is set as 0 DEG C, threshold value 4 is set as to 0 DEG C, threshold value 5 is set as 0g/m3, threshold value 6 is set as 0 DEG C, threshold value 7 is set as to 0 DEG C, will Threshold value 8 be set as 0.5 DEG C, threshold value 9 be set as 35 minutes in the case where an example.
As shown in figure 12, firstly, in the moment t21 that go to bed, the set temperature T1 of refrigeration operation is changed to 28 DEG C from 25 DEG C, pressure Contracting machine 218 is closed.At this point, room temperature T2 and heat exchanger temperature T4 rises, until room temperature T2 becomes than setting temperature Until 30 DEG C of the refrigeration operation movement start time t22 of high 2 DEG C of degree T1 (28 DEG C), compressor 218 is in close state.This When, indoor absolute humidity D2 also rises.
Then, it when room temperature T2 becomes 30 DEG C of 2 DEG C higher than set temperature T1 (28 DEG C), is opened in refrigeration operation movement Begin moment t22, and compressor 218 is activated, and measures the starting time O1 of compressor 218.At this point, room temperature T2 and heat exchanger Temperature T4 decline, indoor absolute humidity D2 slowly rise.
Then, when room temperature T2 becomes set temperature T1 (28 DEG C), stop timing t23, pressure are acted in refrigeration operation Contracting machine 218 is closed, and measures the shut-in time S1 of compressor 218.At this point, room temperature T2 and heat exchanger temperature T4 rises, Indoor absolute humidity D2 is further up.
Here, O1 is 13 minutes and in the case that shut-in time S1 is 42 minutes between on startup, the starting time and close The time difference d1 (=S1-O1) of time is 29 minutes, is not threshold value 9 (35 minutes) or more, therefore be not switched to from refrigeration operation Moisture condensation dehumidifying operating is forced, refrigeration operation is maintained.
Then, it when room temperature T2 becomes 30 DEG C of 2 DEG C higher than set temperature T1 (28 DEG C), is opened in refrigeration operation movement Begin moment t24, and compressor 218 is activated, and measures the starting time O2 of compressor 218.At this point, room temperature T2 and heat exchanger Temperature T4 decline, indoor absolute humidity D2 slowly rise.
Then, when room temperature T2 becomes set temperature T1 (28 DEG C), stop timing t25, pressure are acted in refrigeration operation Contracting machine 218 is closed, and measures the shut-in time S2 of compressor 218.At this point, room temperature T2 and heat exchanger temperature T4 rises, Indoor absolute humidity D2 is further up.
Here, O2 is 12 minutes and in the case that shut-in time S2 is 45 minutes between on startup, the starting time and close The time difference d1 (=S2-O2) of time is 33 minutes, is not threshold value 9 (35 minutes) or more, therefore be not switched to from refrigeration operation Moisture condensation dehumidifying operating is forced, refrigeration operation is maintained.
Then, it when room temperature T2 becomes 30 DEG C of 2 DEG C higher than set temperature T1 (28 DEG C), is opened in refrigeration operation movement Begin moment t26, and compressor 218 is activated, and measures the starting time O3 of compressor 218.At this point, room temperature T2 and heat exchanger Temperature T4 decline, indoor absolute humidity D2 slowly rise.
Then, when room temperature T2 becomes set temperature T1 (28 DEG C), stop timing t27, pressure are acted in refrigeration operation Contracting machine 218 is closed, and measures the shut-in time S3 of compressor 218.At this point, room temperature T2 and heat exchanger temperature T4 rises, Indoor absolute humidity D2 is further up.
Here, outdoor temperature T3 declines with time going by, on startup between O3 be 11 minutes and shut-in time S3 In the case where 48 minutes, it is (35 points of threshold value 9 that the time difference d1 (=S3-O3) for starting time and shut-in time, which is 37 minutes, Clock) more than.Thus, the dehumidifying motion start time t28 that condenses is being forced, is being switched to pressure moisture condensation dehumidifying fortune from refrigeration operation Turn.That is, compressor 218 is activated, indoor heat exchanger 220 is cooled at dew-point temperature TD, therefore is forcing moisture condensation dehumidifying Motion maintains start time t29, heat exchanger temperature T4 to reach dew-point temperature TD.At this point, indoor absolute humidity D2 also under Drop.
Then, closing/starting based on the compressor 218 for forcing moisture condensation dehumidifying operating is repeated, thus heat exchanger Temperature T4 is maintained dew-point temperature TD, reaches moment t30 in target absolute humidity, it is absolute that indoor absolute humidity D2 drops to target Humidity D1 (11.8g/m3)。
Then, reach moment t30 in target absolute humidity, when indoor absolute humidity D2 drops to target absolute humidity D1 (11.8g/m3) when, compressor 218, which is repeated, to be closed, in heat exchange when heat exchanger temperature T4 becomes dew-point temperature TD Device temperature T4 becomes the movement being activated when (TD+0.5 DEG C of dew-point temperature).Thus, heat exchanger temperature T4 is maintained from dew point In the range of temperature TD to (TD+0.5 DEG C of dew-point temperature).As a result, until get up time t31 until, room temperature T2 maintain Within the scope of the proper temperature of 29 DEG C of front and backs, indoor absolute humidity D2 is maintained comprising target absolute humidity D1 (11.8g/m3) (11.8~12.2g/m in appropriate humidity range3)。
As above, in the present embodiment, the time difference d1 of starting time adjacent in time series and shut-in time are When 9 or more threshold value, it is switched to pressure moisture condensation dehumidifying operating from refrigeration operation, stops indoor machine fan 224, by blow-off outlet 225 It is closed, thus takes into account proper temperature and appropriate humidity.As a result, user will not due to supercooling, high humidity and midway wake up, can Continue comfortable sleep.
In addition, by above-mentioned pressure moisture condensation dehumidifying operating processing, it is absolutely wet indoors when forcing to condense dehumidifying operating After degree D2 reaches target absolute humidity D1, indoor heat exchanger 220 is cooled, so that interior absolute humidity D2 is including target In the prescribed limit of absolute humidity D1.Therefore, interior can be set as proper temperature while preventing indoor temperature to be subcooled With the state of appropriate humidity.
Related conditioner and air conditioning control method according to one method of the present invention, at the night in summer In airconditioning control, even if the set temperature of refrigeration operation is set as slightly higher by cold people, will not due to supercooling, high humidity and in Way is wakeeed up, and can continue to comfortably sleep.Therefore, conditioner and airconditioning control involved in one embodiment of the present invention Method as in the airconditioning control at the night in summer even if refrigeration operation be slightly higher temperature setting, be in sleep in people Bedroom in maintain the conditioner of desired absolute humidity and air conditioning control method useful.
The application is based on the Japanese patent application No.2018- submitted on March 20th, 2018 to Japanese Patent Office 052331, the Japanese patent application No.2018-052332 that is submitted to Japanese Patent Office on March 20th, 2018 and 2018 The Japanese patent application No.2018-209779 that on November 7, in submits to Japanese Patent Office, content are hereby incorporated by reference.
Although having carried out sufficient explanation to the present invention referring to attached drawing, it should be noted that for those skilled in the art For, various modifications and changes will be apparent from.Therefore, unless such modifications and changes are departing from the present invention Defined range, is otherwise all contained among the present invention.

Claims (7)

1. a kind of conditioner, characterized by comprising:
First acquisition unit, obtaining indicates according to the first temperature for indicating predetermined temperature and indicates preset relatively wet First absolute humidity of the target absolute humidity that the first relative humidity of degree determines；
Second acquisition unit obtains the dew-point temperature determined according to first temperature and first relative humidity；
Third acquisition unit, obtaining indicates according to the second temperature for indicating indoor temperature and indicates the indoor relative humidity Second absolute humidity of the indoor absolute humidity that the second relative humidity determines；
Heat exchanger makes the indoor air and refrigerant carry out heat exchange；
Air supplying part is conveyed by heat exchanger air after cooling；
Air outlet, air delivery for will be conveyed by the air supplying part to the interior；And
Control unit makes the air-supply of the air supplying part in the case where second absolute humidity is more than first absolute humidity Stop, closing the air outlet, control makes the heat exchanger carry out cooling dehumidifying operating under the dew-point temperature.
2. conditioner according to claim 1, it is characterised in that:
First acquisition unit includes the first calculation part, which obtains first temperature and described first relatively wet Degree, according to the first absolute humidity described in first temperature and first relative humidity calculation；
Second acquisition unit includes the second calculation part, which obtains first temperature and described first relatively wet Degree, according to dew-point temperature described in first temperature and first relative humidity calculation；
The third acquisition unit includes third calculation part, which obtains the second temperature and described second relatively wet Degree, according to the second absolute humidity described in the second temperature and second relative humidity calculation.
3. conditioner according to claim 1, it is characterised in that:
The control unit continues the heat exchanger during second absolute humidity is more than first absolute humidity Cooling.
4. conditioner according to claim 1, it is characterised in that:
The control unit continues the heat exchanger during temperature of the heat exchanger is not less than the dew-point temperature Cooling.
5. conditioner according to claim 1, it is characterised in that further include:
4th acquisition unit obtains the third temperature for the temperature for indicating outdoor, wherein
The control unit starts described remove during first temperature or the second temperature are more than the third temperature Wet operating.
6. conditioner according to claim 1, it is characterised in that:
The control unit, will after second absolute humidity reaches first absolute humidity in dehumidifying operating The heat exchanger is cooled down, so that the temperature of the heat exchanger is in the prescribed limit comprising the dew-point temperature.
7. a kind of air conditioning control method utilizes a processor to control conditioner, which has will be indoor Air and refrigerant carry out heat exchange heat exchanger, conveying by heat exchanger air after cooling air supplying part and To the indoor air outlet, which is characterized in that wrapping for air delivery for will be conveyed by the air supplying part Include following steps:
Obtain the first phase for indicating according to the first temperature for indicating predetermined temperature and indicating preset relative humidity To the first absolute humidity of the target absolute humidity that humidity determines；
Obtain the dew-point temperature determined according to first temperature and first relative humidity；
Obtain the second phase for indicating according to the second temperature for indicating the indoor temperature and indicating the indoor relative humidity To the second absolute humidity of the indoor absolute humidity that humidity determines；
In the case where second absolute humidity is more than first absolute humidity, stops the air-supply of the air supplying part, make The air outlet is closed, and control makes the heat exchanger carry out cooling dehumidifying operating under the dew-point temperature.
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CN113050438A (en) * 2021-02-26 2021-06-29 青岛海尔空调器有限总公司 Method and device for controlling household appliance and household appliance
TWI808535B (en) * 2021-11-15 2023-07-11 國立臺灣師範大學 Air conditioning system with compensation and controlling method thereof

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