CN104776561B - Air conditioner dehumidification control method and device, air conditioner - Google Patents

Air conditioner dehumidification control method and device, air conditioner Download PDF

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Publication number
CN104776561B
CN104776561B CN201510165891.0A CN201510165891A CN104776561B CN 104776561 B CN104776561 B CN 104776561B CN 201510165891 A CN201510165891 A CN 201510165891A CN 104776561 B CN104776561 B CN 104776561B
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China
Prior art keywords
temperature
humidity
air conditioner
indoor environment
indoor
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CN201510165891.0A
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Chinese (zh)
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CN104776561A (en
Inventor
席战利
李金波
张�浩
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广东美的制冷设备有限公司
美的集团股份有限公司
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Publication of CN104776561A publication Critical patent/CN104776561A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature

Abstract

The invention discloses a kind of air conditioner dehumidification control method, including:When air conditioner enters dehumidification mode, indoor environment temperature is obtained;According to the indoor environment temperature and target humidity, dew-point temperature is obtained;Obtain indoor environment humidity;When acquired indoor environment humidity is less than or equal to target humidity, then indoor heat exchanger coils temperature is detected;According to the indoor heat exchanger coil temperature that is detected and the comparative result of the dew-point temperature, the operational factor of air conditioner is adjusted.The invention also discloses a kind of air conditioner dehumidification control device, the present invention is realized in air conditioner dehumidification process, and control indoor environment humidity improves the comfortableness that user uses air conditioner in comfort humidity;Meanwhile reduce the dehumidifying cost of air conditioner.

Description

Air conditioner dehumidification control method and device, air conditioner

Technical field

The present invention relates to air-conditioner field, more particularly to a kind of air conditioner dehumidification control method and device, air conditioner.

Background technology

Air conditioner realizes refrigeration and dehumidifying work(in refrigerated dehumidification running, by general dehumanization method can Can, but in general dehumanization method, in dehumidification process, indoor environment humidity does not reach customer satisfaction system wet at a certain temperature Degree, influence the comfortableness that user uses air-conditioning process.Moreover, air conditioner in general dehumanization method is by the interior of air conditioner Heat exchanger increases dehumidification valve.In dehumidification process, dehumidification valve is closed, and the throttling arrangement of air conditioner is opened, and dehumidification valve plays throttling and made With an evaporator when indoor heat exchanger part is as dehumidifying, another part is connected with outdoor heat exchanger, now changed by interior A part is heated the air-flow of hot device in air channel indoors, and another part is cooled, heated air-flow and cooled air-flow Blown out after mixing from the indoor air outlet of air conditioner, so as to realize dehumidification function.The dehumanization method is due to needing indoors Heat exchanger increases a dehumidification valve, and indoor heat exchanger stream is also more complicated, and cost increase is more.

The content of the invention

It is a primary object of the present invention to provide a kind of air conditioner dehumidification control method and device, air conditioner, it is intended to reduce The cost of air conditioner dehumidifying, and control indoor environment humidity to maintain comfort humidity during dehumidifying.

To achieve the above object, the invention provides a kind of air conditioner dehumidification control method, comprise the following steps:

S1, when air conditioner enters dehumidification mode, obtain indoor environment temperature;

S2, according to the indoor environment temperature and target humidity, obtain dew-point temperature;

S3, obtain indoor environment humidity;

S4, when acquired indoor environment humidity is less than or equal to target humidity, then detect indoor heat exchanger coils temperature;

S5, according to the indoor heat exchanger coil temperature that is detected and the comparative result of the dew-point temperature, adjust air conditioner Operational factor.

Preferably, the step S5 includes:

Judge whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature;

If the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature, the frequency that compressor is currently run Rate reduces predeterminated frequency value, and after preset time, obtains indoor environment temperature, and be transferred to step S2;

If the indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor of air conditioner remains unchanged, Indoor environment temperature is obtained, and is transferred to step S2.

Preferably, include after the step S3:

When acquired indoor environment humidity is more than target humidity, then air conditioner maintains current dehumidification mode.

Preferably, include before the step S2:

Obtain target humidity.

Preferably, the acquisition target humidity includes:

According to current indoor environment temperature, preset comfort humidity corresponding with current indoor environment temperature is obtained;

Using acquired preset comfort humidity as the target humidity.

In addition, to achieve the above object, present invention also offers a kind of air conditioner dehumidification control device, including:

Temperature acquisition module, for when air conditioner enters dehumidification mode, obtaining indoor environment temperature;

Dew-point temperature acquisition module, for according to the indoor environment temperature and target humidity, obtaining dew-point temperature;

Humidity acquisition module, for obtaining indoor environment humidity;

Detection module, for being less than or equal to target humidity when acquired indoor environment humidity, then detect indoor heat exchange Device coil temperature;

Adjustment module, for according to the indoor heat exchanger coil temperature that is detected and the comparative result of the dew-point temperature, Adjust the operational factor of air conditioner.

Preferably, judging unit, for judging whether the indoor heat exchanger coil temperature is less than or equal to the dew point Temperature;

Adjustment unit, will compression if being less than or equal to the dew-point temperature for the indoor heat exchanger coil temperature The frequency that machine is currently run reduces predeterminated frequency value, and after preset time, obtains indoor environment temperature;

If the indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor of air conditioner remains unchanged, Obtain indoor environment temperature.

Preferably, the air conditioner dehumidification control device includes:

Control module, for being more than target humidity when acquired indoor environment humidity, then air conditioner maintenance is current removes Wet model.

Preferably, the air conditioner dehumidification control device includes:

Target humidity acquisition module, for obtaining target humidity.

Preferably, the target humidity acquisition module includes:

Acquiring unit, for according to current indoor environment temperature, obtaining corresponding with current indoor environment temperature default easypro Suitable humidity degree;

Processing unit, for using acquired preset comfort humidity as the target humidity.

In addition, to achieve the above object, present invention also offers a kind of air conditioner, the air conditioner is provided with indoor temperature Sensor, indoor humidity sensor and indoor heat exchanger coil temperature sensor, the indoor temperature transmitter are used to gather room Interior environment temperature, the indoor humidity sensor are used to gather indoor environment humidity, indoor heat exchanger coil temperature sensing Device is used to gather indoor heat exchanger coil temperature, and the air conditioner also includes the control device of above-mentioned air conditioner dehumidifying, the control Device is used to combine indoor environment temperature, target humidity and indoor heat exchanger coil temperature, adjusts the operational factor of air conditioner, And air conditioner is controlled to be run according to the operational factor.

The embodiment of the present invention obtains indoor environment temperature and indoor environment humidity, root when air conditioner enters dehumidification mode According to indoor environment temperature and target humidity, dew-point temperature is obtained;When acquired indoor environment humidity is wet less than or equal to target Degree, then detect indoor heat exchanger coils temperature;According to the indoor heat exchanger coil temperature detected and the ratio of the dew-point temperature Relatively result, adjust the operational factor of air conditioner.It is achieved thereby that air conditioner is in dehumidification process, according to different indoor environment temperature Degree control indoor environment humidity maintains different target humidities, in addition, air conditioner need not increase the parts such as dehumidification valve, drop The low dehumidifying cost of air conditioner.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of air conditioner dehumidification control method first embodiment of the present invention;

Fig. 2 is the refinement schematic flow sheet that the operational factor of air conditioner is adjusted in air conditioner dehumidification control method of the present invention;

Fig. 3 is the schematic flow sheet of air conditioner dehumidification control method second embodiment of the present invention;

Fig. 4 is the schematic flow sheet of air conditioner dehumidification control method 3rd embodiment of the present invention;

Fig. 5 is the refinement schematic flow sheet that target humidity is obtained in air conditioner dehumidification control method of the present invention;

Fig. 6 is the high-level schematic functional block diagram of air conditioner dehumidification control device first embodiment of the present invention;

Fig. 7 is the high-level schematic functional block diagram of adjustment module in air conditioner dehumidification control device of the present invention;

Fig. 8 is the high-level schematic functional block diagram of air conditioner dehumidification control device second embodiment of the present invention;

Fig. 9 is the high-level schematic functional block diagram of air conditioner dehumidification control device 3rd embodiment of the present invention;

Figure 10 is the high-level schematic functional block diagram of target humidity acquisition module in air conditioner dehumidification control device of the present invention;

Figure 11 is a kind of embodiment of air conditioner one for realizing Dehumidification controlling of the present invention.

The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.

Embodiment

It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

The main thought of the present invention is when air conditioner enters dehumidification mode, and it is wet to obtain indoor environment temperature, indoor environment Degree and dew-point temperature, when acquired indoor environment humidity is less than or equal to target humidity, then by detecting indoor heat exchanger disk After pipe temperature, the comparative result with dew-point temperature, the operational factor of air conditioner is adjusted.So that in air conditioner dehumidification process, it is real Show according to the difference of indoor environment temperature and controlled indoor environment humidity to maintain different target humidities, improving user makes With the comfortableness of air conditioner.In addition, it is not necessary that increasing the parts such as dehumidification valve, the dehumidifying cost of air conditioner is reduced.

As shown in figure 1, show a kind of air conditioner dehumidification control method first embodiment of the present invention.The air-conditioning of the embodiment Device dehumidification control method comprises the following steps:

Step S10, when air conditioner enters dehumidification mode, indoor environment temperature is obtained;

Step S20, according to the indoor environment temperature and target humidity, dew-point temperature is obtained;

Step S30, indoor environment humidity is obtained;

Step S40, when acquired indoor environment humidity is less than or equal to target humidity, then indoor heat exchanger coils are detected Temperature;

Step S50, it is empty according to the indoor heat exchanger coil temperature detected and the comparative result of the dew-point temperature, regulation Adjust the operational factor of device.

Air conditioner electrifying startup, during into dehumidification mode, pass through the indoor temperature being installed on air conditioner room unit and sense Device detects indoor environment temperature in real time, is calculated according to obtained indoor environment temperature and target humidity or obtains sky by tabling look-up The dew-point temperature of gas.If the target humidity is the humidity of acquiescence, the method that dew-point temperature is obtained by tabling look-up is:The present embodiment In, indoor environment temperature T will be pre-set11, target humidity Hs and dew-point temperature TLMapping relations, as shown in table 1:

The mapping relations of the indoor environment temperature of table 1., target humidity and dew-point temperature

As shown in Table 1, in advance by indoor environment temperature T119 temperature ranges are divided into, each temperature range is corresponding different Preset comfort humidity Hs, therefore, each temperature range preset comfort humidity Hs with reference to corresponding to obtains a dew-point temperature TL, And with indoor environment temperature T11And target humidity Hs gradually rises, dew-point temperature TLAlso gradually rise.For example, when acquisition Indoor environment temperature T11For 20 DEG C, positioned at 19 DEG C≤T11The temperature range that 21 DEG C of <, and corresponding preset comfort humidity Hs is 50%, then the dew-point temperature T obtainedLFor 9.31 DEG C;As the indoor environment temperature T of acquisition11For 16.3 DEG C, positioned at 15 DEG C≤T11< 17 DEG C of temperature range, and corresponding preset comfort humidity Hs are 60%, then the dew-point temperature T obtainedLFor 8.3 DEG C.It can manage Solve, each value in above-mentioned table 1 can be set as the case may be and flexibly, not limit the present invention.

It should be noted that the data in table 1 are according to acquisition indoor environment temperature T11Afterwards, indoor environment temperature is passed through T11With the calculation formula between preset comfort humidity Hs:Hs=a × T11+ b, preset comfort humidity Hs is calculated, wherein, a, b For constant coefficient, for example, Hs=1-0.025 × T11.Then according to indoor environment temperature T11It is calculated with preset comfort humidity Hs Dew-point temperature TL, for example, TL=n × T11+ m × Hs, wherein, n, m are constant coefficient.It is understood that a in above-mentioned formula, B, the value of the parameter such as n, m can be set as the case may be and flexibly, not limit the present invention.

If the target humidity is the humidity of user's setting, in the present embodiment, indoor environment temperature T will be pre-set11, target Humidity Hs and dew-point temperature mapping relations, wherein, TL1、……TL25For indoor environment temperature T11With the matching of corresponding humidity value Dew-point temperature, as shown in table 2:

The mapping relations of the indoor environment temperature of table 2., target humidity and dew-point temperature

As shown in Table 2, in advance by indoor environment temperature T115 temperature ranges are divided into, target humidity Hs is divided into 5 Humidity section, each temperature range dew-point temperature different from corresponding humidity section matching, for example, when the indoor environment temperature obtained Spend T11For 23 DEG C, positioned at 21 DEG C≤T11The temperature range that 25 DEG C of <, if the humidity that user sets as 45%, positioned at 40%≤Hs < 50% humidity section, the then dew-point temperature obtained are TL18℃.It should be noted that the data in table 2 are according to acquisition room Interior environment temperature T11Afterwards, the humidity Hs set with reference to user, according to formula TLn=A × T11+ B × Hs, obtains dew-point temperature, its Middle A, B are constant coefficient, and A, B value can be set as the case may be and flexibly.It is understood that respectively taking in above-mentioned table 2 Value can be set as the case may be and flexibly, not limit the present invention.

Then, indoor environment humidity is detected by the indoor humidity sensor being installed on air conditioner room unit, will obtained Indoor environment humidity compared with target humidity, if indoor environment humidity is less than or equal to target humidity, by being installed on room Temperature sensor detection in interior heat exchanger coils detects indoor heat exchanger coils temperature, the indoor heat exchanger coil pipe temperature that will be obtained Degree is transported with dew-point temperature compared with according to comparative result to wind speed of the frequency of compressor operating in air conditioner and indoor fan etc. Row parameter is adjusted.

The embodiment of the present invention detects indoor environment temperature and indoor environment humidity, root when air conditioner enters dehumidification mode Dew-point temperature is obtained according to indoor environment temperature and target humidity, and when ambient humidity is less than or equal to target humidity indoors, general The indoor heat exchanger coil temperature detected is compared with dew-point temperature, and then the frequency to compressor operating in air conditioner and interior The operational factors such as the wind speed of blower fan are adjusted.It is achieved thereby that during air conditioner dehumidifies, according to indoor environment temperature Difference and control indoor environment humidity to maintain different target humidities, user can be improved using air conditioner dehumidification process Comfortableness.In addition, it is not necessary that increasing the parts such as dehumidification valve, the dehumidifying cost of air conditioner is reduced.

Further, it is above-mentioned in the air conditioner dehumidification control method of the embodiment as shown in Fig. 2 being based on above-described embodiment Step S50 comprises the following steps:

Step S51, judge whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature;

If step S52, described indoor heat exchanger coil temperature is less than or equal to the dew-point temperature, and compressor is current The frequency of operation reduces predeterminated frequency value, and after preset time, obtains indoor environment temperature, and be transferred to step S20;

If step S53, described indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor dimension of air conditioner Constant, acquisition indoor environment temperature is held, and is transferred to step S20.

Be compared after obtaining indoor heat exchanger coil temperature and dew-point temperature, if indoor heat exchanger coil temperature be less than or Equal to dew-point temperature, now indoor environment humidity, then will pressure in order to control air conditioner without dehumidifying already below target humidity The frequency that contracting machine is currently run reduces predeterminated frequency value, to improve indoor heat exchanger coil temperature.For example, the predeterminated frequency value is 2Hz, it is F according to the new running frequency obtained after reduction1=F10- 2Hz, wherein F10The frequency F currently run for compressor10。 It is understood that the predeterminated frequency value can be set as the case may be and flexibly, the present invention is not limited.Compressor is according to new Running frequency operation preset time after, the compressor operating of air conditioner is reached stable, continue to detect indoor environment temperature and Indoor environment humidity, circulation perform above-mentioned steps.It is understood that the preset time may be configured as 5 minutes, or other Time, it can set as the case may be and flexibly.If the indoor heat exchanger coil temperature detected is more than dew-point temperature, now room Interior ambient humidity also miss the mark humidity, control air conditioner continue to dehumidify, then the frequency of the compressor operating of air conditioner and room The operational factors such as the wind speed of inner blower operation remain unchanged, and continue to detect indoor environment temperature and indoor environment humidity, circulation are held Row above-mentioned steps.

Further, as shown in figure 3, the invention also provides a kind of air conditioner dehumidification control method second embodiment, on Step S30 is stated afterwards to comprise the following steps:

Step S60, when acquired indoor environment humidity is more than target humidity, then air conditioner maintains current dehumidifying mould Formula.

After detection obtains indoor environment humidity, by indoor environment humidity compared with target humidity, if indoor environment is wet Degree is more than target humidity, now needs to control air conditioner to continue to dehumidify, then the frequency of the compressor operating of air conditioner and indoor wind The operational factors such as the wind speed of machine operation remain unchanged, that is, maintain current dehumidification mode.So that air conditioner is effectively dehumidified, And indoor environment humidity is controlled to maintain target humidity.

Further, as shown in figure 4, the invention also provides a kind of air conditioner dehumidification control method 3rd embodiment, on Comprise the following steps before stating step S20:

Step S70, target humidity is obtained.

In order to after the indoor environment humidity of acquisition, compared with target humidity, therefore, it is necessary to transfer air conditioner storage The target humidity stored in module.It should be noted that target humidity is the humidity of user preset, or the humidity of acquiescence, i.e., Preset comfort humidity corresponding with current indoor environment temperature, the humidity of the user preset can be demand of the user according to oneself Be configured by the methods of default button or touch-screen on remote control or air conditioner or virtual key, should with it is current Preset comfort humidity corresponding to indoor environment temperature is reflecting for the current indoor environment temperature that pre-sets and preset comfort humidity Penetrate relation.

Further, as shown in figure 5, above-mentioned steps S70 may include following steps:

Step S71, according to current indoor environment temperature, it is wet to obtain preset comfort corresponding with current indoor environment temperature Degree;

Step S72, using acquired preset comfort humidity as the target humidity.

After air conditioner enters dehumidification mode, if user is not configured to the humidity of air conditioner, in order to preferably make room The humidity of interior environment maintains comfortable humidity, improves the comfortableness that user uses air conditioner dehumidification process, then obtains and work as cup Interior environment temperature T1Afterwards, it is determined that with current indoor environment temperature T1Corresponding preset comfort humidity Hs, then acquired is preset Comfort humidity Hs is as target humidity.In the present embodiment, current indoor environment temperature T will be pre-set1With preset comfort humidity Hs mapping relations, as shown in table 3:

The mapping relations of the current indoor environment temperature of table 3. and preset comfort humidity

As shown in Table 3, in advance by current indoor environment temperature T19 temperature ranges are divided into, each temperature range is corresponding Different preset comfort humidity Hs, with current indoor environment temperature T1Rise, preset comfort humidity Hs are gradually reduced.Work as cup Interior environment temperature T1During less than 13 DEG C, preset comfort humidity Hs is 70%;Current indoor environment temperature T1More than or equal to 27 DEG C When, preset comfort humidity Hs is 30%.For example, as the current indoor environment temperature T obtained1For 16 DEG C, positioned at 15 DEG C≤T1< 17 DEG C temperature range, then obtain corresponding to preset comfort humidity Hs be 60%, control air conditioner operates in 60% humidity.Can be with Understand, each value in above-mentioned table 3 can be set as the case may be and flexibly, not limit the present invention.

Accordingly, as shown in fig. 6, proposing a kind of air conditioner dehumidification control device first embodiment of the present invention.The embodiment Air conditioner dehumidification control device include:

Temperature acquisition module 100, for when air conditioner enters dehumidification mode, obtaining indoor environment temperature;

Dew-point temperature acquisition module 200, for according to the indoor environment temperature and target humidity, obtaining dew-point temperature;

Humidity acquisition module 300, for obtaining indoor environment humidity;

Detection module 400, for being less than or equal to target humidity when acquired indoor environment humidity, then detect interior and change Hot device coil temperature;

Adjustment module 500, for according to the indoor heat exchanger coil temperature detected and the comparison knot of the dew-point temperature Fruit, adjust the operational factor of air conditioner.

Air conditioner electrifying startup, during into dehumidification mode, pass through the indoor temperature being installed on air conditioner room unit and sense Device detects indoor environment temperature in real time, is calculated according to obtained indoor environment temperature and target humidity or is revealed by tabling look-up Point temperature.If the target humidity is the humidity of acquiescence, the method that dew-point temperature is obtained by tabling look-up is:, will in the present embodiment Pre-set indoor environment temperature T11, target humidity Hs and dew-point temperature TLMapping relations, as shown in table 1:

The mapping relations of the indoor environment temperature of table 1., target humidity and dew-point temperature

As shown in Table 1, in advance by indoor environment temperature T119 temperature ranges are divided into, each temperature range is corresponding different Preset comfort humidity Hs, therefore, each temperature range preset comfort humidity Hs with reference to corresponding to obtains a dew-point temperature TL, And with indoor environment temperature T11And target humidity Hs gradually rises, dew-point temperature TLAlso gradually rise.For example, when acquisition Indoor environment temperature T11For 20 DEG C, positioned at 19 DEG C≤T11The temperature range that 21 DEG C of <, and corresponding preset comfort humidity Hs is 50%, then the dew-point temperature T obtainedLFor 9.31 DEG C;As the indoor environment temperature T of acquisition11For 16.3 DEG C, positioned at 15 DEG C≤T11< 17 DEG C of temperature range, and corresponding preset comfort humidity Hs are 60%, then the dew-point temperature T obtainedLFor 8.3 DEG C.It can manage Solve, each value in above-mentioned table 1 can be set as the case may be and flexibly, not limit the present invention.

It should be noted that the data in table 1 are according to acquisition indoor environment temperature T11Afterwards, indoor environment temperature is passed through T11With the calculation formula between preset comfort humidity Hs:Hs=a × T11+ b, preset comfort humidity Hs is calculated, wherein, a, b For constant coefficient, for example, Hs=1-0.025 × T11.Then according to indoor environment temperature T11It is calculated with preset comfort humidity Hs Dew-point temperature TL, for example, TL=n × T11+ m × Hs, wherein, n, m are constant coefficient.It is understood that a in above-mentioned formula, B, the value of the parameter such as n, m can be set as the case may be and flexibly, not limit the present invention.

If the target humidity is the humidity of user's setting, in the present embodiment, indoor environment temperature T will be pre-set11, target Humidity Hs and dew-point temperature mapping relations, wherein, TL1、……TL25For indoor environment temperature T11With the matching of corresponding humidity value Dew-point temperature, as shown in table 2:

The mapping relations of the indoor environment temperature of table 2., target humidity and dew-point temperature

As shown in Table 2, in advance by indoor environment temperature T115 temperature ranges are divided into, target humidity Hs is divided into 5 Humidity section, each temperature range dew-point temperature different from corresponding humidity section matching, for example, when the indoor environment temperature obtained Spend T11For 23 DEG C, positioned at 21 DEG C≤T11The temperature range that 25 DEG C of <, if the humidity that user sets as 45%, positioned at 40%≤Hs < 50% humidity section, the then dew-point temperature obtained are TL18℃.It should be noted that the data in table 2 are according to acquisition room Interior environment temperature T11Afterwards, the humidity Hs set with reference to user, according to formula TLn=A × T11+ B × Hs, obtains dew-point temperature, its Middle A, B are constant coefficient, and A, B value can be set as the case may be and flexibly.It is understood that respectively taking in above-mentioned table 2 Value can be set as the case may be and flexibly, not limit the present invention.

Then, indoor environment humidity is detected by the indoor humidity sensor being installed on air conditioner room unit, will obtained Indoor environment humidity compared with target humidity, if indoor environment humidity is less than or equal to target humidity, by being installed on room Temperature sensor detection in interior heat exchanger coils detects indoor heat exchanger coils temperature, the indoor heat exchanger coil pipe temperature that will be obtained Degree is transported with dew-point temperature compared with according to comparative result to wind speed of the frequency of compressor operating in air conditioner and indoor fan etc. Row parameter is adjusted.

The embodiment of the present invention detects indoor environment temperature and indoor environment humidity, root when air conditioner enters dehumidification mode Dew-point temperature is obtained according to indoor environment temperature and target humidity, and when ambient humidity is less than or equal to target humidity indoors, general The indoor heat exchanger coil temperature detected is compared with dew-point temperature, and then the frequency to compressor operating in air conditioner and interior The operational factors such as the wind speed of blower fan are adjusted.It is achieved thereby that during air conditioner dehumidifies, according to indoor environment temperature Difference and control indoor environment humidity to maintain different target humidities, user can be improved using air conditioner dehumidification process Comfortableness.In addition, it is not necessary that increasing the parts such as dehumidification valve, the dehumidifying cost of air conditioner is reduced.

Further, as shown in fig. 7, adjustment module 500 includes in above-mentioned air conditioner dehumidification control device:

Judging unit 510, for judging whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature;

Adjustment unit 520, will pressure if being less than or equal to the dew-point temperature for the indoor heat exchanger coil temperature The frequency that contracting machine is currently run reduces predeterminated frequency value, and after preset time, obtains indoor environment temperature;

If the indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor of air conditioner remains unchanged, Obtain indoor environment temperature.

Be compared after obtaining indoor heat exchanger coil temperature and dew-point temperature, if indoor heat exchanger coil temperature be less than or Equal to dew-point temperature, now indoor environment humidity, then will pressure in order to control air conditioner without dehumidifying already below target humidity The frequency that contracting machine is currently run reduces predeterminated frequency value, to improve indoor heat exchanger coil temperature.For example, the predeterminated frequency value is 2Hz, it is F according to the new running frequency obtained after reduction1=F10- 2Hz, wherein F10The frequency F currently run for compressor10。 It is understood that the predeterminated frequency value can be set as the case may be and flexibly, the present invention is not limited.Compressor is according to new Running frequency operation preset time after, the compressor operating of air conditioner is reached stable, continue to detect indoor environment temperature and Indoor environment humidity, circulation perform above-mentioned steps.It is understood that the preset time may be configured as 5 minutes, or other Time, it can set as the case may be and flexibly.If the indoor heat exchanger coil temperature detected is more than dew-point temperature, now room Interior ambient humidity also miss the mark humidity, control air conditioner continue to dehumidify, then the frequency of the compressor operating of air conditioner and room The operational factors such as the wind speed of inner blower operation remain unchanged, and continue to detect indoor environment temperature and indoor environment humidity, circulation are held Row above-mentioned steps.

Further, as shown in figure 8, the invention also provides a kind of air conditioner dehumidification control device second embodiment, on Stating air conditioner dehumidification control device also includes:

Control module 600, for being more than target humidity when acquired indoor environment humidity, then air conditioner maintains currently Dehumidification mode.

After detection obtains indoor environment humidity, by indoor environment humidity compared with target humidity, if indoor environment is wet Degree is more than target humidity, now needs to control air conditioner to continue to dehumidify, then the frequency of the compressor operating of air conditioner and indoor wind The operational factors such as the wind speed of machine operation remain unchanged, that is, maintain current dehumidification mode.So that air conditioner is effectively dehumidified, And indoor environment humidity is controlled to maintain target humidity.

Further, as shown in figure 9, the invention also provides a kind of air conditioner dehumidification control device 3rd embodiment, on Stating air conditioner dehumidification control device also includes:

Target humidity acquisition module 700, for obtaining target humidity.

In order to after the indoor environment humidity of acquisition, compared with target humidity, therefore, it is necessary to transfer air conditioner storage The target humidity stored in module.It should be noted that target humidity is the humidity of user preset, or the humidity of acquiescence, i.e., Preset comfort humidity corresponding with current indoor environment temperature, the humidity of the user preset can be demand of the user according to oneself Be configured by the methods of default button or touch-screen on remote control or air conditioner or virtual key, should with it is current Preset comfort humidity corresponding to indoor environment temperature is reflecting for the current indoor environment temperature that pre-sets and preset comfort humidity Penetrate relation.

Further, as shown in Figure 10, above-mentioned target humidity acquisition module 700 may include:

Acquiring unit 710, for according to current indoor environment temperature, obtaining corresponding with current indoor environment temperature default Comfort humidity;

Processing unit 720, for using acquired preset comfort humidity as the target humidity.

After air conditioner enters dehumidification mode, if user is not configured to the humidity of air conditioner, in order to preferably make room The humidity of interior environment maintains comfortable humidity, improves the comfortableness that user uses air conditioner dehumidification process, then obtains and work as cup Interior environment temperature T1Afterwards, it is determined that with current indoor environment temperature T1Corresponding preset comfort humidity Hs, then acquired is preset Comfort humidity Hs is as target humidity.In the present embodiment, current indoor environment temperature T will be pre-set1With preset comfort humidity Hs mapping relations, as shown in table 3:

The mapping relations of the current indoor environment temperature of table 3. and preset comfort humidity

As shown in Table 3, in advance by current indoor environment temperature T19 temperature ranges are divided into, each temperature range is corresponding Different preset comfort humidity Hs, with current indoor environment temperature T1Rise, preset comfort humidity Hs are gradually reduced.Work as cup Interior environment temperature T1During less than 13 DEG C, preset comfort humidity Hs is 70%;Current indoor environment temperature T1More than or equal to 27 DEG C When, preset comfort humidity Hs is 30%.For example, as the current indoor environment temperature T obtained1For 16 DEG C, positioned at 15 DEG C≤T1< 17 DEG C temperature range, then obtain corresponding to preset comfort humidity Hs be 60%, control air conditioner operates in 60% humidity.Can be with Understand, each value in above-mentioned table 3 can be set as the case may be and flexibly, not limit the present invention.

Accordingly, as shown in figure 11, a kind of embodiment of air conditioner one for realizing Dehumidification controlling of the present invention is shown.The air conditioner It may include indoor set 1 and outdoor unit 2, indoor heat exchanger and indoor fan can be provided with the indoor set 1;It can be provided with outdoor unit 2 Compressor assembly, four-way valve, outdoor heat exchanger and throttle part etc., wherein compressor assembly, four-way valve, indoor heat exchange Connected between device, outdoor heat exchanger, throttle part by pipeline, form refrigerating/heating circulation loop.The indoor set 1 is provided with Temperature sensor 101 and humidity sensor 102, it is respectively used to gather indoor environment temperature T1 and indoor environment humidity H1.In addition, The air conditioner room unit also includes a control device 3, and the control device 3 is used to combine indoor environment temperature T1 rooms and indoor environment Humidity H1, and target humidity Hs, adjust the operational factor of air conditioner, and control air conditioner to be run according to the operational factor, reach To the purpose of control indoor environment humidity.The structure and working principle of the control device can refer to described in preceding embodiment.Can be with Understand, above-mentioned control device can also be independently arranged or be arranged on air-conditioner outdoor unit.

The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (7)

1. a kind of air conditioner dehumidification control method, it is characterised in that the air conditioner dehumidification control method comprises the following steps:
S1, when air conditioner enters dehumidification mode, obtain indoor environment temperature;
S2, according to the indoor environment temperature and target humidity, obtain dew-point temperature;
S3, obtain indoor environment humidity;
S4, when acquired indoor environment humidity is less than or equal to target humidity, then detect indoor heat exchanger coils temperature;
S5, according to the indoor heat exchanger coil temperature that is detected and the comparative result of the dew-point temperature, adjust the fortune of air conditioner Row parameter;
When acquired indoor environment humidity is more than target humidity, then air conditioner maintains current dehumidification mode;
The step S5 includes:
Judge whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature;
If the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature, the frequency that compressor is currently run subtracts Small predeterminated frequency value, and after preset time, indoor environment temperature is obtained, and be transferred to step S2;
If the indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor of air conditioner remains unchanged, and obtains Indoor environment temperature, and it is transferred to step S2.
2. air conditioner dehumidification control method as claimed in claim 1, it is characterised in that include before the step S2:
Obtain target humidity.
3. air conditioner dehumidification control method as claimed in claim 2, it is characterised in that the acquisition target humidity includes:
According to current indoor environment temperature, preset comfort humidity corresponding with current indoor environment temperature is obtained;
Using acquired preset comfort humidity as the target humidity.
4. a kind of air conditioner dehumidification control device, it is characterised in that the air conditioner dehumidification control device includes:
Temperature acquisition module, for when air conditioner enters dehumidification mode, obtaining indoor environment temperature;
Dew-point temperature acquisition module, for according to the indoor environment temperature and target humidity, obtaining dew-point temperature;Humidity obtains Module, for obtaining indoor environment humidity;
Detection module, for being less than or equal to target humidity when acquired indoor environment humidity, then detect indoor heat exchanger disk Pipe temperature;
Adjustment module, for according to the indoor heat exchanger coil temperature detected and the comparative result of the dew-point temperature, regulation The operational factor of air conditioner;
Control module, for being more than target humidity when acquired indoor environment humidity, then air conditioner maintains current dehumidifying mould Formula;
The adjustment module includes:
Judging unit, for judging whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature;
Adjustment unit, if being less than or equal to the dew-point temperature for the indoor heat exchanger coil temperature, compressor is worked as The frequency of preceding operation reduces predeterminated frequency value, and after preset time, obtains indoor environment temperature;
If the indoor heat exchanger coil temperature is more than the dew-point temperature, the operational factor of air conditioner remains unchanged, and obtains Indoor environment temperature.
5. air conditioner dehumidification control device as claimed in claim 4, it is characterised in that the air conditioner dehumidification control device bag Include:
Target humidity acquisition module, for obtaining target humidity.
6. air conditioner dehumidification control device as claimed in claim 5, it is characterised in that the target humidity acquisition module bag Include:
Acquiring unit, for according to current indoor environment temperature, it is wet to obtain preset comfort corresponding with current indoor environment temperature Degree;
Processing unit, for using acquired preset comfort humidity as the target humidity.
7. a kind of air conditioner, it is characterised in that the air conditioner is provided with indoor temperature transmitter, indoor humidity sensor and room Interior heat exchanger coils temperature sensor, the indoor temperature transmitter are used to gather indoor environment temperature, indoor humidity biography Sensor is used to gather indoor environment humidity, the indoor heat exchanger coil temperature sensor for gathering indoor heat exchanger coil pipe temperature Degree, the air conditioner also include the control device that the air conditioner as described in claim any one of 4-6 dehumidifies, and the control device is used for With reference to indoor environment temperature, target humidity and indoor heat exchanger coil temperature, the operational factor of air conditioner is adjusted, and controls sky Device is adjusted to be run according to the operational factor.
CN201510165891.0A 2015-04-09 2015-04-09 Air conditioner dehumidification control method and device, air conditioner CN104776561B (en)

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