CN105928065B - A kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioner - Google Patents

A kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioner Download PDF

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Publication number
CN105928065B
CN105928065B CN201610286203.0A CN201610286203A CN105928065B CN 105928065 B CN105928065 B CN 105928065B CN 201610286203 A CN201610286203 A CN 201610286203A CN 105928065 B CN105928065 B CN 105928065B
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China
Prior art keywords
temperature
aperture
expansion valve
outdoor
electric expansion
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CN201610286203.0A
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CN105928065A (en
Inventor
王晓东
杜威
孟欣
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Hisense Shandong Air Conditioning Co Ltd
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Hisense Shandong Air Conditioning Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/40Fluid line arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The embodiment provides a kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioners, it is related to field of air conditioning, solve existing constant temperature dehumidification air-conditioning in order to avoid the temperature of outdoor control panel is excessively high and it is higher to run outdoor fan revolving speed so that in indoor unit the temperature of refrigerant it is lower and the problem of cause indoor supply air temperature relatively low or sets requirement cannot be reached.The type constant temperature dehumidifying air conditioner includes: indoor unit and outdoor unit, the outdoor unit includes compression assembly, condenser, the first electric expansion valve, outdoor fan and outdoor control module, the outdoor unit further include: the second electric expansion valve, when this air conditioner runs constant temperature dehumidification, first electric expansion valve of outdoor control module control type constant temperature dehumidifying air conditioner is adjusted to the first aperture, and it adjusts by the aperture regulation of the second electric expansion valve to the second aperture, and by the revolving speed of outdoor fan to rotating speed of target.The present invention is applied to constant temperature dehumidification air-conditioning.

Description

A kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioner
Technical field
The present invention relates to field of air conditioning more particularly to a kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioners.
Background technique
Air-conditioning becomes cooling of relieving summer heat in people's daily life, the important of heating of warding off the cold with its superior refrigeration, heat-production functions Means.In order to better meet the demand of people, current constant temperature dehumidification air-conditioning has been entered in daily life, is people Bring more comfortable environment.
Fig. 1 is the block architecture diagram of existing constant temperature dehumidification air-conditioning, the indoor unit 10 which is connected by pipeline It is formed with outdoor unit 20.Indoor unit 10 is by evaporator (101,102), dehumidification valve 103, indoor fan 104 and indoor control mould Equal other accessory components composition of block 105, wherein the evaporator is made of the first evaporator section 101 and the second evaporator section 102. The outdoor unit 20 is by compression assembly 201, condenser 202, electric expansion valve 203, outdoor fan 204 and outdoor control module 205 equal other accessory components compositions.The principle of constant temperature dehumidification air-conditioning in the prior art are as follows: in cooling mode, outdoor control mould Block makes condenser convey the cold of high temperature and pressure to the first evaporator section of indoor unit by pipeline by controlling electric expansion valve Matchmaker, and dehumidification valve is controlled to control the refrigerant for being input to the second evaporator section from the first evaporator section by indoor control module Flow makes the refrigerant in the second evaporator section realize refrigerated dehumidification to air, to reach the mesh to indoor environment constant temperature dehumidification 's.
In the prior art, to realize to the constant temperature dehumidification of air, then need outdoor control module by outdoor fan Revolving speed is turned down, to guarantee that the condenser of outdoor unit can convey the refrigerant of higher temperature to the first evaporator section.But due to room Temperature on outer control panel needs outdoor fan to be cooled down, prevent the revolving speed of outdoor fan from too low, therefore, works as satisfaction When the temperature requirement of outdoor control panel, the revolving speed of outdoor fan is higher, so that the temperature of refrigerant is lower and lead to room in indoor unit Interior supply air temperature is relatively low or cannot reach sets requirement.
Summary of the invention
The embodiment of the present invention provides a kind of air-conditioning constant temperature dehumidification method and type constant temperature dehumidifying air conditioner, solves existing constant temperature Dehumidification air conditioner is excessively high and the operation of outdoor fan revolving speed is higher in order to avoid the temperature of outdoor control panel, so that refrigerant in indoor unit Temperature it is lower and the problem of cause indoor supply air temperature relatively low or sets requirement cannot be reached.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of type constant temperature dehumidifying air conditioner, comprising: indoor unit and outdoor unit, the outdoor unit include: pressure Contracting component, condenser, the first electric expansion valve, outdoor fan and outdoor control module, the first interface of the compression assembly are logical Piping is connected with the indoor unit, and the second interface of the compression assembly passes through the first interface phase of pipeline and the condenser Even, first electric expansion valve is on the connecting pipe between the second interface and the indoor unit of the condenser, the room Outer control module connects the outdoor fan and first electric expansion valve, the outdoor unit further include the second electronic expansion Valve, second electric expansion valve are arranged on the connecting pipe between the second interface of the compression assembly and the indoor unit, The outdoor control module connects second electric expansion valve, in which:
Second electric expansion valve, for controlling the connection between the second interface of the compression assembly and the indoor unit The flow of refrigerant in pipeline;
The outdoor control module, is adjusted to the first aperture for controlling first electric expansion valve, and by described the The aperture regulation of two electric expansion valves adjusts the revolving speed of the outdoor fan to rotating speed of target, the mesh to the second aperture It marks revolving speed and is more than or equal to predetermined threshold, first aperture is maximum opening value.
Second aspect, a kind of air-conditioning constant temperature dehumidification method, applied to type constant temperature dehumidifying air conditioner described above, the method Include:
The outdoor control module of the type constant temperature dehumidifying air conditioner controls the first electronic expansion of the type constant temperature dehumidifying air conditioner Valve regulation is to the first aperture, and by the aperture regulation of second electric expansion valve to the second aperture, and by the outdoor fan Revolving speed adjust to rotating speed of target, first aperture be maximum opening value.
Air-conditioning constant temperature dehumidification method provided in an embodiment of the present invention and type constant temperature dehumidifying air conditioner, it is empty in existing constant temperature dehumidification Adjusting in device joined the second electric expansion valve, which is arranged between the second interface of compression assembly and indoor unit Connecting pipe on, and second electric expansion valve is connected with outdoor control module;Pass through the first electricity of outdoor control module control Sub- expansion valve is adjusted to the first aperture, and by the aperture regulation of the second electric expansion valve to the second aperture, and by outdoor fan Revolving speed adjust to rotating speed of target, thus realize to indoor environment carry out constant temperature dehumidification or heating dehumidifying purpose.In this programme By increasing by the second electric expansion valve, the opening size guarantee by controlling the second electric expansion valve is entered the room in machine evaporator Refrigerant temperature, the revolving speed by controlling outdoor fan avoids the outdoor control panel temperature excessively high, avoids in the prior art Outdoor fan revolving speed is depended merely on to control the limitation into refrigerant temperature and outdoor control panel temperature in evaporator, so that this Scheme can effectively control the temperature for entering the room refrigerant in machine evaporator, and then guarantee that room temperature can reach default and want It asks.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is a kind of type constant temperature dehumidifying air conditioner structural schematic diagram that the prior art provides;
Fig. 2 is a kind of structural schematic diagram for type constant temperature dehumidifying air conditioner that the embodiment of the present invention provides;
The schematic diagram of compression assembly composition in Fig. 2 type constant temperature dehumidifying air conditioner that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is a kind of dehumidification mode operation schematic diagram for type constant temperature dehumidifying air conditioner that the embodiment of the present invention provides;
Fig. 5 is a kind of heating mode operation schematic diagram for type constant temperature dehumidifying air conditioner that the embodiment of the present invention provides;
Fig. 6 is a kind of method flow diagram for air-conditioning constant temperature dehumidification method that the embodiment of the present invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of type constant temperature dehumidifying air conditioner, as shown in Fig. 2, the type constant temperature dehumidifying air conditioner includes: room Interior machine 10 and outdoor unit 20, the outdoor unit 20 include: compression assembly 201, condenser 202, the first electric expansion valve 203, outdoor The first interface of control module 205 and outdoor fan 206, the compression assembly 201 is connected by pipeline with indoor unit 10, the pressure 201 second interfaces of contracting component are connected by pipeline with the first interface of condenser 202, and first electric expansion valve 203 is cold On connecting pipe between the second interface and indoor unit 10 of condenser 202, above-mentioned outdoor control module 205 connects outdoor fan 206 And first electric expansion valve 203, above-mentioned outdoor unit 20 further includes the second electric expansion valve 204, which sets It sets on the connecting pipe between the second interface and indoor unit 10 of compression assembly 201, above-mentioned outdoor control module 205 connection second Electric expansion valve 204, in which:
Second electric expansion valve 204, for controlling the connecting pipe between the second interface of compression assembly 201 and indoor unit 10 The flow of interior refrigerant.
Outdoor control module 205 is adjusted to the first aperture for controlling the first electric expansion valve 203, and by the second electronics The aperture regulation of expansion valve 204 adjusts the revolving speed of outdoor fan 206 to rotating speed of target to the second aperture.
The first aperture in the present embodiment is aperture maximum value.Illustratively, above-mentioned aperture be can be with linear change Value, for example, when the variation range of opening value is between 0-100, the first aperture is maximum opening value 100, and the second aperture can be with For any value less than the first aperture, specifically, the second opening value can be 80, the occurrence for the second aperture be according to Room temperature needed for family is set.
Above-mentioned rotating speed of target is illustrative more than or equal to predetermined threshold in the present embodiment, which is outdoor control Module revolving speed required when outdoor fan rotational speed regulation to control panel can achieve the state of cooling.
Referring to type constant temperature dehumidifying air conditioner shown in Fig. 2, the indoor unit 10 in the present embodiment include: the first evaporator section 101, Second evaporator section 102, dehumidification valve 103, indoor fan 104 and indoor control module 105, the first evaporator section 101 First interface connects the first electric expansion valve 203, and the second interface of the first evaporator section 101 connects the second evaporator section 102 First interface, the second interface of the second evaporator section 102 connects compression assembly 201, and the dehumidification valve 103 setting is steamed first Send out device section 101 second interface and the second evaporator section 102 first interface between connecting pipe on, the indoor fan 104 with Indoor control module 105 is connected.
Referring to compression assembly structural schematic diagram shown in Fig. 3, in the present embodiment in type constant temperature dehumidifying air conditioner shown in Fig. 2 Compression assembly includes: four-way valve 2011, compressor 2012 and liquid storage device 2013, and the first interface of the four-way valve 2011 is (in figure Label 1) it is connected with indoor unit 10, the second interface (figure label 2) of the four-way valve 2011 is connected with compressor 2012, the four-way The third interface (figure label 3) of valve 2011 is connected with condenser 202, the 4th interface (figure label 4) of the four-way valve 2011 It is connected with liquid storage device 2013;Wherein, compressor 2012 is connected with outdoor control module 205 (being not drawn into figure).Illustratively, on The compressor 2012 stated is frequency-changeable compressor.
Optionally, in the present embodiment type constant temperature dehumidifying air conditioner indoor unit 10 further include: temperature detecting module, the temperature inspection Control module 105 in module junction chamber is surveyed, which is connected with outdoor control module 205, in which:
Temperature detecting module is arranged on machine outer wall indoors, for detecting the environment temperature of indoor unit.
Indoor control module 105, the temperature information for detecting temperature detecting module are sent to outdoor control module 205;
Outdoor control module 205 is by the aperture regulation of the second electric expansion valve to the second aperture, and by the outdoor wind The revolving speed of machine is specifically used for when adjusting to rotating speed of target:
According to temperature information and preset temperature, by the aperture regulation of the second electric expansion valve to the second aperture, and will be outdoor The revolving speed of blower is adjusted to rotating speed of target.
Above-mentioned temperature information in the embodiment of the present invention is the ambient temperature value for the indoor unit that temperature detecting module detects, Above-mentioned preset temperature is the satisfaction of the temperature value set in producer's progress when type constant temperature dehumidifying air conditioner dispatches from the factory or user oneself setting The temperature value of user demand, wherein the preset temperature is fixed and invariable, and is not changed with the variation of external condition.
Indoor fan in the embodiment of the present invention includes but is not limited to outdoor fan: DC speed-regulating motor exchanges PG electricity Machine and tap motor.Illustratively, when outdoor fan motor is on-hook, and fan motor is PG motor, fan motor The range of speeds is 600r/min to 1300r/min;When outdoor fan motor is on-hook, and fan motor is direct current generator, wind The range of speeds for fanning motor is 600r/min to 1500r/min;When outdoor fan motor is cabinet-type air conditioner, and the fan motor of the cabinet-type air conditioner When for tap motor, the range of speeds of the fan motor is in 300r/min to 500r/min.Preferably, in order to adapt to the present invention In wider speed adjustable range and revolving speed it is controllable, above-mentioned outdoor fan and outdoor fan are DC speed-regulating motor and to exchange PG electric Machine.
Illustratively, the temperature detecting module in the embodiment of the present invention in type constant temperature dehumidifying air conditioner detects the ring of indoor unit Then the ambient temperature value is sent to outdoor control module by border temperature value, outdoor control module is further according to the ambient temperature value And preset temperature adjusts the aperture of the second electric expansion valve and the revolving speed of outdoor fan in type constant temperature dehumidifying air conditioner.Here citing comes Illustrate that the second electric expansion valve is adjusted to the second aperture according to the indoor unit environment temperature received by outdoor control module, and will The revolving speed of outdoor fan adjusts the indoor unit environment temperature for being specifically referred to following table 1 to rotating speed of target and providing, the second electricity Corresponding relationship between the aperture of sub- expansion valve, outdoor fan revolving speed and target temperature.It is removed in the embodiment of the present invention in constant temperature Under wet model, for the environment temperature of indoor unit generally between 18-30, the aperture of the second electric expansion valve is generally kept in 0-500 Between.It should be noted that the table 1 is only an example, user can be according to actual need in specific practical application The second aperture of setting and rotating speed of target are asked, is limited herein not to this.
Table 1
Illustratively, referring to above-mentioned table, the indoor unit environment temperature that temperature detecting module detects here is with 30 Example is illustrated, it is assumed that the preset temperature of above-mentioned type constant temperature dehumidifying air conditioner is 24.Specifically, detected when temperature detecting module When indoor unit environment temperature is 30, since the indoor environment temperature value is higher, the preset temperature 24 in type constant temperature dehumidifying air conditioner is not It is able to satisfy the demand of user oneself, outdoor control module is according to the indoor unit ambient temperature value 30 detected and preset temperature Value 24 searches above table, by the aperture regulation of the second electric expansion valve to 5 and by outdoor fan rotational speed regulation to 550, from And indoor unit environment temperature is made to be down to target temperature 26 by 30, meet the needs of user oneself.It is noted herein that when When the indoor unit temperature that temperature detecting module detects is 24, which compares the demand of appropriate user, therefore user need not be The aperture of the second electric expansion valve and the revolving speed of outdoor fan are adjusted, the corresponding opening value of preset temperature 24 and outdoor are kept The revolving speed of blower.
Illustratively, in the present embodiment it is above-mentioned outdoor control module, be also used to obtain target temperature, according to target temperature from In information MAP table, the second aperture of corresponding second electric expansion valve of target temperature and the target of corresponding outdoor fan are obtained Revolving speed.
Above- mentioned information mapping table includes target temperature, the revolving speed of outdoor fan and the second electric expansion valve in the present embodiment Corresponding relationship between second aperture.Illustratively, which is referred to above-mentioned table 1, if being 25 to be with target temperature Example searches target temperature when indoor unit environment is 30, and the target temperature that outdoor control module obtains is 25 in table 1 above The second aperture and the corresponding rotating speed of target of outdoor fan of 25 corresponding second electric expansion valves, by the second electric expansion valve For aperture regulation to 30, by the rotational speed regulation of outdoor fan to 280, indoor unit environment temperature is down to 25 by 30 at this time, meets user Demand.
Type constant temperature dehumidifying air conditioner provided in an embodiment of the present invention joined the second electricity in existing type constant temperature dehumidifying air conditioner Sub- expansion valve, second electric expansion valve are arranged on the connecting pipe between the second interface of compression assembly and indoor unit, and should Second electric expansion valve is connected with outdoor control module;The first electric expansion valve, which is controlled, by outdoor control module is adjusted to first Aperture, and by the aperture regulation of the second electric expansion valve to the second aperture, and the revolving speed of outdoor fan is adjusted to target and is turned Speed, to realize the purpose for carrying out constant temperature dehumidification or heating dehumidifying to indoor environment.It is swollen by increasing by the second electronics in this programme Swollen valve, the opening size guarantee by controlling the second electric expansion valve enter the room the refrigerant temperature in machine evaporator, pass through control The revolving speed of outdoor fan processed is excessively high to avoid outdoor control panel temperature, avoids and depends merely on outdoor fan revolving speed in the prior art Control enters the limitation of refrigerant temperature and outdoor control panel temperature in evaporator, and this programme is effectively controlled The temperature of refrigerant in machine evaporator is entered the room, and then guarantees that room temperature can reach preset requirement.
Below by based on constant temperature dehumidification mode, cooling in summer mode and winter heating's mode in the embodiment of the present invention The carrying out practically process of type constant temperature dehumidifying air conditioner is illustrated.
Example one: constant temperature dehumidification mode
With reference to constant temperature dehumidification mode operation figure shown in Fig. 4, four-way valve runs refrigeration mode, referring to the arrow side in figure To, refrigerant by passing through the second interface of four-way valve in compressor and third interface flows to condenser, after circulation, the refrigerant by The second evaporator section flows to compressor by liquid storage device by the first interface and the 4th interface of four-way valve in indoor unit, carries out down Primary circulation.Specifically, 1 standard-sized sheet of electric expansion valve, no throttling action, indoor fan 1 are run, dehumidification valve is powered, indoor It can only be connected to by dehumidification valve between the first evaporator section and the second evaporator section in machine, dehumidification valve generates throttling action, indoor The first evaporator section refrigerant heats air in machine, and the second evaporator section refrigerant evaporation is to cooling-dehumidifying air, and air is by indoor Humidity reduces after machine, achievees the purpose that indoor air dehumidification.During type constant temperature dehumidifying air conditioner is dehumidified, the Indoor Temperature Degree can increase, reduce or keep to be basically unchanged, and the control of indoor leaving air temp is by adjusting 2 revolving speed of outdoor fan and electronic expansion Valve 2 aperture is realized.
Specifically, when room temperature, which needs, to be reduced, outdoor fan 2 runs higher wind, 2 aperture of electric expansion valve compared with It is small, outdoor unit high temperature and pressure refrigerant most or all through outdoor condenser, be condensed into the lower refrigerant of temperature, pass through electronics Expansion valve 1 flows out, and the refrigerant high with the temperature from electric expansion valve 2 mixes or flow directly into indoor machine evaporation, therefore The refrigerant temperature for entering the room machine evaporator is lower, and the first evaporator section is just less to the heating amount of air in indoor unit, realizes Indoor leaving air temp is lower.
When room temperature needs to increase, outdoor fan 2 runs lower wind speed, and 2 aperture of electric expansion valve is larger, outdoor unit Refrigerant a part of high temperature and pressure enters condenser, is condensed into the lower refrigerant of temperature, is flowed out by electric expansion valve 1, and one Point higher refrigerant of high temperature and pressure temperature directly passes through bypass electric expansion valve 2 and flows out, and with another part be mixed into temperature compared with High refrigerant, in this way, the refrigerant temperature for entering the room machine evaporator is higher, indoor first evaporator section to the heating amount of air just It is more, realize that indoor leaving air temp is higher.
As a result, under constant temperature dehumidification mode, by 2 rotational speed regulation of outdoor fan and control outdoor electrical expansion valve 2 Aperture realizes adjusting to room air heating amount, can effectively realize indoor humidity reduction, temperature can increase, reduce or It is basically unchanged, the ambient temperature and humidity variation of wider range can be applicable in, to improve indoor temperature and humidity control accuracy and relax Adaptive.
Example two: refrigeration mode
Referring still to Fig. 4, four-way valve runs refrigeration mode, and referring to the arrow direction in figure, refrigerant in compressor by passing through The second interface and third interface of four-way valve flow to condenser, and after circulation, the refrigerant is by the second evaporator section in indoor unit Compressor is flowed to from device through supercooling midnight by the first interface and the 4th interface of four-way valve, carries out circulation next time.It is indoor Dehumidification valve powers off access, and dehumidification valve is without throttling action, and for evaporator as refrigeration purposes, electric expansion valve 2 is complete in indoor unit It closes, electric expansion valve 1 controls flow according to suction superheat or delivery temperature, and 2 high-speed cruising of outdoor unit blower is realized indoor Refrigeration purpose.
Example three: heating mode
It runs and schemes with reference to heating mode shown in fig. 5, four-way valve runs heating mode, cold referring to the arrow direction in figure Matchmaker is by flowing to evaporator by the second interface of four-way valve and first interface in compressor, and after circulation, the refrigerant is by outdoor Condenser flows to compressor from device through supercooling midnight by the third interface and the 4th interface of four-way valve in machine, carries out next time Circulation.Indoor dehumidification valve powers off access, and dehumidification valve is without throttling action, and indoor machine evaporation is as heating purposes, electronic expansion Valve 2 completely closes, and electric expansion valve 1 controls flow according to suction superheat or delivery temperature, and 2 high-speed cruising of outdoor fan is real Existing indoor heating purpose.
The associated description in the embodiment based on the corresponding type constant temperature dehumidifying air conditioner of Fig. 2 proposes the embodiment of the present invention below A kind of air-conditioning constant temperature dehumidification method supplied is introduced.Technical term relevant to above-described embodiment, concept in following embodiment Deng explanation be referred to the above embodiments, which is not described herein again.
The embodiment of the present invention provides a kind of air-conditioning constant temperature dehumidification method, applied to the constant temperature dehumidification air-conditioning in above-described embodiment Device, as shown in fig. 6, this method comprises:
First electronic expansion valve regulation of the outdoor control module control type constant temperature dehumidifying air conditioner of 301 type constant temperature dehumidifying air conditioners To the first aperture, and adjust by the aperture regulation of the second electric expansion valve to the second aperture, and by the revolving speed of outdoor fan to mesh Mark revolving speed.
Rotating speed of target is more than or equal to predetermined threshold in the embodiment of the present invention, and the first aperture is maximum opening value.
Illustratively, the outdoor control module acquisition instruction information of type constant temperature dehumidifying air conditioner, the command information are used to indicate Target temperature to be achieved needed for indoor environment temperature.Specifically, the outdoor control module of type constant temperature dehumidifying air conditioner can basis The command information is adjusted to the first aperture to control the first electric expansion valve, and by the aperture regulation of the second electric expansion valve to Two apertures, and the revolving speed of outdoor fan is adjusted to rotating speed of target.
Illustratively, above-mentioned steps 301 are in the outdoor control module of type constant temperature dehumidifying air conditioner by the second electric expansion valve Aperture regulation specifically includes following content to the second aperture, and when the revolving speed of outdoor fan is adjusted to rotating speed of target:
301a, target temperature is obtained, according to target temperature from information MAP table, obtains corresponding second electricity of target temperature Second aperture of sub- expansion valve and the rotating speed of target of corresponding outdoor fan, the information MAP table include target temperature, outdoor wind Corresponding relationship between second aperture of the revolving speed of machine and the second electric expansion valve.
Illustratively, before step 301, further includes:
The indoor control module control temperature detecting module detection indoor unit environment temperature of A1, type constant temperature dehumidifying air conditioner, and The temperature information that temperature detecting module is detected is sent to outdoor control module.
Further, step 301 is in the outdoor control module of type constant temperature dehumidifying air conditioner by the aperture of the second electric expansion valve When being adjusted to the second aperture, and the revolving speed of outdoor fan being adjusted to rotating speed of target, the following contents is specifically included:
301b, the temperature information that is sent according to indoor control module of outdoor control module of type constant temperature dehumidifying air conditioner and default Temperature is adjusted by the aperture regulation of the second electric expansion valve to the second aperture, and by the revolving speed of outdoor fan to rotating speed of target.
Above-mentioned temperature information is that temperature detecting module is obtained by carrying out environment measuring to indoor unit.Illustratively, When detecting indoor unit environment temperature, what can be received according to outdoor control module is used to detect indoor unit temperature detecting module The command information of environment temperature come control temperature detecting module carry out indoor unit environment temperature detection.In addition, temperature detection mould Block can also be when detecting indoor unit environment temperature and periodically detected, the period can taking human as being set, for example, Outdoor control module controlled temperature detecting module per hour and carried out an indoor unit environment temperature by taking hour as an example such as period Detection.It should be noted that the period, a kind of only example can basis in actual application as unit of hour here Actual concrete condition is defined.
Illustratively, it is based on above-mentioned steps 301b, this method specifically includes content in detail below:
B1, be greater than preset temperature when temperature information, then by the aperture regulation of the second electric expansion valve to third aperture, and will The rotational speed regulation of outdoor fan is to the first revolving speed.
B2, be less than or equal to preset temperature when temperature information, then by the aperture regulation of the second electric expansion valve to the 4th aperture, And by the rotational speed regulation of outdoor fan to the second revolving speed.
Above-mentioned 4th aperture is greater than third aperture in the present embodiment, and above-mentioned first revolving speed is more than or equal to the second revolving speed.
Air-conditioning constant temperature dehumidification method provided in an embodiment of the present invention, applied to the constant temperature dehumidification air-conditioning in the embodiment of the present invention Device, the first electric expansion valve by controlling type constant temperature dehumidifying air conditioner are adjusted to the first aperture, and by the second electric expansion valve Aperture regulation adjusts the revolving speed of outdoor fan to rotating speed of target to the second aperture, thus realize indoor environment is carried out it is permanent The purpose of temperature dehumidifying or heating dehumidifying.By increasing by the second electric expansion valve in this programme, by controlling the second electric expansion valve Opening size guarantee to enter the room refrigerant temperature in machine evaporator, avoid outdoor control by controlling the revolving speed of outdoor fan Panel temperature processed is excessively high, avoid depend merely on outdoor fan revolving speed in the prior art control into evaporator refrigerant temperature and The limitation of outdoor control panel temperature, allows this programme effectively to control the temperature for entering the room refrigerant in machine evaporator Degree, and then guarantee that room temperature can reach preset requirement.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above Energy.The specific work process of the system, apparatus, and unit of foregoing description, can be with reference to corresponding in preceding method embodiment Journey, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed type constant temperature dehumidifying air conditioner and air-conditioning Constant temperature dehumidification method, may be implemented in other ways.For example, Installation practice described above is only schematic , for example, the division of the module or unit, only a kind of logical function partition, can there is other draw in actual implementation The mode of dividing, such as multiple module or components can be combined or can be integrated into another system, or some features can be ignored, Or it does not execute.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be by one The indirect coupling or communication connection of a little interfaces, device or module.
It, can also be in addition, each functional module in each embodiment of the application can integrate in one processing unit It is that modules physically exist alone, can also be integrated in one unit with two or more modules.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations;Although referring to before Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features;And these It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.

Claims (9)

1. a kind of type constant temperature dehumidifying air conditioner, comprising: indoor unit and outdoor unit, the outdoor unit include: compression assembly, condenser, First electric expansion valve, outdoor fan and outdoor control module, the first interface of the compression assembly pass through pipeline and the room Interior machine is connected, and the second interface of the compression assembly is connected by pipeline with the first interface of the condenser, first electricity Sub- expansion valve is on the connecting pipe between the second interface and the indoor unit of the condenser, the outdoor control module connection The outdoor fan and first electric expansion valve, which is characterized in that the outdoor unit further includes the second electric expansion valve, institute It states on the connecting pipe that the second electric expansion valve is arranged between the second interface of the compression assembly and the indoor unit, the room Outer control module connects second electric expansion valve, and second electric expansion valve is in parallel with the condenser, in which:
Second electric expansion valve, for controlling the connecting pipe between the second interface of the compression assembly and the indoor unit The flow of interior refrigerant;
The outdoor control module is adjusted to the first aperture for controlling first electric expansion valve, and electric by described second The aperture regulation of sub- expansion valve adjusts the revolving speed of the outdoor fan to rotating speed of target to the second aperture, and the target turns Speed is more than or equal to predetermined threshold, and first aperture is maximum opening value;
The outdoor control module, is also used under constant temperature dehumidification mode, when room temperature needs to improve, the outdoor fan fortune The lower wind speed of row, second electronic expansion valve opening is larger, described in refrigerant a part entrance of the outdoor unit high temperature and pressure Condenser is condensed into the lower refrigerant of temperature, is flowed out by first electric expansion valve, outdoor unit high temperature described in another part The refrigerant of high pressure directly passes through the outflow of the second electric expansion valve, and lower with temperature is flowed out by first electric expansion valve Refrigerant is mixed into the higher refrigerant of temperature.
2. type constant temperature dehumidifying air conditioner according to claim 1, which is characterized in that the indoor unit includes: temperature detection mould Block, control module in the temperature detecting module junction chamber, the interior control module are connected with the outdoor control module, In:
The temperature detecting module, for detecting the environment temperature of the indoor unit;
The interior control module, the temperature information for detecting the temperature detecting module are sent to the outdoor control Module;
The outdoor control module is by the aperture regulation of second electric expansion valve to the second aperture, and by the outdoor wind The revolving speed of machine is specifically used for when adjusting to rotating speed of target: according to the temperature information and preset temperature, second electronics is swollen The aperture regulation of swollen valve adjusts the revolving speed of the outdoor fan to rotating speed of target to the second aperture.
3. type constant temperature dehumidifying air conditioner according to claim 1, which is characterized in that the outdoor control module is also used to obtain Target temperature is taken, according to target temperature from information MAP table, obtains corresponding second electric expansion valve of the target temperature The rotating speed of target of second aperture and the corresponding outdoor fan, the information MAP table include target temperature, outdoor fan Corresponding relationship between second aperture of revolving speed and the second electric expansion valve.
4. type constant temperature dehumidifying air conditioner according to claim 1, which is characterized in that the compression assembly includes four-way valve, pressure Contracting machine and liquid storage device;Wherein, the first interface of the four-way valve is connected with the indoor unit, the second interface of the four-way valve It is connected with the compressor, the third interface of the four-way valve is connected with condenser in the outdoor unit, and the of the four-way valve Four interfaces are connected with the liquid storage device;Wherein, the compressor is connected with the outdoor control module.
5. type constant temperature dehumidifying air conditioner according to claim 1 to 4, which is characterized in that the indoor unit includes: first Evaporator section, the second evaporator section, dehumidification valve, indoor fan and indoor control module, the first of the first evaporator section Interface connects first electric expansion valve, and the second interface of the first evaporator section connects the of the second evaporator section One interface, the second interface of the second evaporator section connect the compression assembly, and the dehumidification valve setting is steamed described first Send out device section second interface and the second evaporator section first interface between connecting pipe on, the indoor fan with it is described Indoor control module is connected.
6. a kind of air-conditioning constant temperature dehumidification method, applied to any type constant temperature dehumidifying air conditioner of claim 1-5, feature exists In, which comprises
The outdoor control module of the type constant temperature dehumidifying air conditioner controls the first electric expansion valve tune of the type constant temperature dehumidifying air conditioner It saves to the first aperture, and by the aperture regulation of second electric expansion valve to the second aperture, and the outdoor fan is turned Velocity modulation is whole to rotating speed of target, and the rotating speed of target is more than or equal to predetermined threshold, and first aperture is maximum opening value.
7. according to the method described in claim 6, it is characterized in that, the outdoor control module of the type constant temperature dehumidifying air conditioner is by institute The aperture regulation of the second electric expansion valve is stated to the second aperture, and the revolving speed of the outdoor fan is adjusted specific to rotating speed of target Include:
It obtains target temperature and it is swollen to obtain corresponding second electronics of the target temperature according to target temperature from information MAP table The rotating speed of target of second aperture of swollen valve and the corresponding outdoor fan, the information MAP table include temperature, outdoor fan Revolving speed and the second electric expansion valve the second aperture between corresponding relationship.
8. according to the method described in claim 6, it is characterized in that, the outdoor control module of the type constant temperature dehumidifying air conditioner controls First electric expansion valve of the type constant temperature dehumidifying air conditioner is adjusted to before the first aperture further include:
Indoor control module control temperature detecting module detects indoor unit environment temperature, and the temperature that temperature detecting module is detected Degree information is sent to outdoor control module;
Further, the outdoor control module of the type constant temperature dehumidifying air conditioner by the aperture regulation of second electric expansion valve extremely Second aperture, and the revolving speed of the outdoor fan is adjusted to rotating speed of target and is specifically included:
The temperature information and preset temperature that the outdoor control module is sent according to the indoor control module, by second electricity The aperture regulation of sub- expansion valve adjusts the revolving speed of the outdoor fan to rotating speed of target to the second aperture, the temperature letter Breath is that the temperature detecting module is obtained by carrying out environment measuring to the indoor unit.
9. according to the method described in claim 8, it is characterized in that, the outdoor control module is according to the indoor control module The temperature information and preset temperature of transmission, by the aperture regulation of second electric expansion valve to the second aperture, and by the room The revolving speed of outer blower, which is adjusted to rotating speed of target, to be specifically included:
When the temperature information is greater than preset temperature, then by the aperture regulation of second electric expansion valve to third aperture, and By the rotational speed regulation of the outdoor fan to the first revolving speed;
When the temperature information is less than or equal to the preset temperature, then by the aperture regulation of second electric expansion valve to the 4th Aperture, and by the rotational speed regulation of the outdoor fan to the second revolving speed;
4th aperture is greater than the third aperture, and first revolving speed is more than or equal to second revolving speed.
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