CN104864517A - Air conditioning device - Google Patents
Air conditioning device Download PDFInfo
- Publication number
- CN104864517A CN104864517A CN201410062020.1A CN201410062020A CN104864517A CN 104864517 A CN104864517 A CN 104864517A CN 201410062020 A CN201410062020 A CN 201410062020A CN 104864517 A CN104864517 A CN 104864517A
- Authority
- CN
- China
- Prior art keywords
- temperature
- indoor
- outdoor
- target temperature
- refrigeration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioning device which can keep a dehumidification function when the outdoor temperature is low and can guarantee comfort of indoor people. The air conditioning device (10) comprises indoor heat exchangers (50), indoor fans (55), indoor temperature sensors (96), outdoor temperature sensors (95) and indoor control parts (92). During refrigerating operation of the indoor control parts (92) in an automatic mode, a target refrigerating temperature of a target indoor temperature is changed together with the outdoor temperature.
Description
Technical field
The present invention relates to a kind of conditioner.
Background technology
In the prior art, conditioner is utilized to carry out playing the cooling operation of dehumidification function.In this cooling operation, make the indoor heat converter in conditioner play effect as evaporimeter, and evaporating temperature is set as the temperature of the dew point lower than room air, thus play the exsiccation removing the moisture be included in room air.
But, when carry out cooling operation thus make indoor heat converter as evaporimeter to play exsiccation time, indoor temperature can reduce gradually.When room temperature is reduced to lower than target temperature, compressor can shut down thus be in the state stopping refrigeration (thermo-off).Usually, refrigeration target temperature when operating in automatic mode is fixed on 28 DEG C, if though carry out cooling operation at the weather that the high temperature of humidity (outdoor temperature) is low, room temperature then drops to less than 28 DEG C immediately, is in stopping refrigerating state.Once become stopping refrigerating state, then because compressor shuts down, cold-producing medium can not flow to indoor heat converter, and not only refrigeration disappears, and exsiccation also can disappear.
To this, such as, refrigeration target temperature is set as 22 DEG C, that is, refrigeration target temperature is set as very low value, even the date that outdoor temperature is low, is difficult to forward stopping refrigerating state to.But this control can cause indoor temperature excessive descent, bring uncomfortable sensation to indoor people.
And, in order to prevent room temperature excessive descent in the cooling operation for the purpose of dehumidifying, some are proposed by method heating such as electrical heating by the indoor apparatus of air conditioner of the air after evaporator cools also dehumidifying or by being divided into two by indoor heat converter, side is used with indoor apparatus of air conditioner room temperature being remained on uniform temperature as condenser as evaporimeter, opposite side, and sells in market.But, these indoor apparatus of air conditioner, price and size is also very large.
Summary of the invention
The object of the invention is to, can exsiccation be maintained when providing a kind of outdoor temperature low, and the comfort of indoor occupant can be guaranteed.
Conditioner according to a first aspect of the present invention, it comprises indoor heat converter, indoor fan, indoor temperature transmitter, outdoor temperature sensor and control part.Heat exchange is carried out between cold-producing medium in the internal flow of indoor heat converter and the air of the flows outside at indoor heat converter.Indoor fan is for generating air flowing.Indoor fan indoor space sucks air, makes air flow through the outside after-blow of indoor heat converter to the interior space.Indoor temperature transmitter for detecting the air themperature of the interior space, i.e. indoor temperature.Outdoor temperature sensor is used for the air themperature outside sensing chamber, i.e. outdoor temperature.Control part has automatic mode.In automatic mode, at least when the evaporimeter making indoor heat converter as cold-producing medium plays the refrigeration of effect, the refrigeration target temperature of the automatic define objective indoor temperature of control part.And in automatic mode, control part makes refrigeration target temperature and outdoor temperature link to change.
Here, not refrigeration target temperature was fixed on setting by picture in the past, but refrigeration target temperature and outdoor temperature are linked.Therefore, even if when outdoor temperature is low, refrigeration target temperature can be changed, thus do not occur compressor out of service thus stop refrigeration state.When outdoor temperature is low, if refrigeration target temperature and its interlock and reducing, conditioner can suppress to occur causing cold-producing medium not flow to the phenomenon of indoor heat converter because stopping freezing.According to this formation, when outdoor temperature is lower, also exsiccation can be maintained.And, due to the refrigeration target temperature that also on-fixed (setting) is very low, refrigeration target temperature and outdoor temperature are linked and changes, the comfort of indoor occupant can be guaranteed.
At conditioner according to a second aspect of the present invention, in conditioner according to a first aspect of the invention, in automatic mode, refrigeration target temperature is set to lower than outdoor temperature by control part.
Here, even if when the temperature of outdoor air declines, owing to refrigeration target temperature to be set as the temperature lower than this outdoor temperature, conditioner can not forward stopping refrigerating state to.Such as, when making refrigeration target temperature consistent with outdoor temperature, when outdoor temperature is 26 DEG C, indoor temperature also becomes 26 DEG C, once indoor temperature is lower than 25 DEG C, then forwards stopping refrigerating state to.But, if refrigeration target temperature is set to the temperature lower than outdoor temperature, when outdoor temperature is 25 DEG C, even if such as indoor temperature is lower than 25 DEG C, also stopping refrigerating state can not being forwarded to.According to this formation, exsiccation during refrigerating operaton in conditioner can be maintained for a long time.
Conditioner according to a third aspect of the present invention, in conditioner according to a second aspect of the invention, when automatic mode, the temperature that temperature is outdoor deducted setting by control part is set as the target temperature that freezes.Setting is, the user of such as conditioner operates machines from remote controller etc. the temperature of input.
Here, be set as by refrigeration target temperature, temperature deducts the setting of such as 1 DEG C outdoor.Now, when outdoor temperature is 26 DEG C, refrigeration target temperature becomes 25 DEG C, and when outdoor temperature is 24 DEG C, refrigeration target temperature becomes 23 DEG C.Suppose, refrigeration target temperature is fixed on 26 DEG C, once outdoor temperature drops to 24 DEG C, then the indoor temperature of carrying out cooling operation drops to 24 DEG C immediately, can imagine and can become stopping refrigerating state, and exsiccation can disappear.But, if refrigeration target temperature links with the outdoor temperature being reduced to 24 DEG C become 23 DEG C, not easily forward stopping refrigerating state to.
And, suppose from refrigeration target temperature is fixed on 23 DEG C so that the low temperature that outdoor temperature becomes 24 DEG C also can not become stopping refrigerating state, such as, when outdoor temperature is 28 DEG C, indoor temperature is reduced to about 23 DEG C.If like this, the interior space became cold, cannot guarantee the comfort of indoor occupant.But, in conditioner according to a third aspect of the present invention, because temperature temperature outdoor being deducted setting is set as the target temperature that freezes, the comfort of indoor occupant can be guaranteed.
Conditioner according to a fourth aspect of the present invention, in the conditioner described in any one of the first to the third aspect according to the present invention, in automatic mode, control part, between set upper limit temperature and lower limit temperature, makes refrigeration target temperature and outdoor temperature link and changes.
Here, owing to defining ceiling temperature, and make refrigeration target temperature not higher than ceiling temperature, avoid indoor temperature in cooling operation to rise to uncomfortable level.And, owing to defining lower limit temperature, when outside air temperature is extremely low, suppress refrigeration target temperature to be set as lower than outdoor temperature.Such as, if ceiling temperature is 26 DEG C, lower limit temperature is 20 DEG C, then there will not be when outside air temperature 35 DEG C refrigeration target temperature to become the situation of 33 DEG C or 34 DEG C, or during outside air temperature 20 DEG C, there will not be refrigeration target temperature to become the situation of 18 DEG C or 19 DEG C.
Invention effect
In the present invention, owing to carrying out the control changing the target temperature that freezes with outdoor temperature in linkage, also can maintain exsiccation when outdoor temperature is low, and the comfort of indoor occupant can be guaranteed.
Accompanying drawing explanation
Fig. 1 is the refrigerant piping system schematic of the conditioner relating to one embodiment of the invention;
Fig. 2 is the control module figure of conditioner;
Fig. 3 is the control flow of automatic design temperature when freezing in automatic mode;
Fig. 4 is the coordinate diagram of target temperature after standard target temperature and the adjustment adding the temperature adjusted value that access customer inputs of acquiescence.
Symbol description
10 conditioners
50 indoor heat converters
55 indoor fans
90 control parts
92 room control unit (control part)
95 outdoor temperature sensor
96 indoor temperature transmitters
Tad temperature adjusted value (setting)
Detailed description of the invention
(1) overall structure of conditioner
Fig. 1 is the refrigerant piping system schematic of the conditioner 10 relating to one embodiment of the invention.Conditioner 10 is the conditioner of decentralized refrigerant piping mode, by carrying out cool cycles running, heating or each room cooled in building of steam compression type.Conditioner 10 comprises outdoor unit 11, multiple indoor unit 12, the liquid refrigerant communicating pipe 13 connecting outdoor unit 11 and indoor unit 12 and gas refrigerant communicating pipe 14.The refrigerant loop of the conditioner 10 namely, represented by Fig. 1 is by connecting outdoor unit 11, indoor unit 12, forming cold-producing medium communicating pipe 13,14.And, be incorporated with cold-producing medium in the refrigerant loop represented by Fig. 1, as aftermentioned, make cold-producing medium carry out being compressed, cool/condense, reduce pressure, heat/evaporate after, again operated by the cool cycles compressed.As cold-producing medium, use R32, R410A etc.
(2) detailed construction of conditioner
(2-1) indoor unit
Indoor unit 12 is arranged on the ceiling in each room, sidewall or ground, via
Cold-producing medium communicating pipe 13,14 is connected with outdoor unit 11.Indoor unit 12, mainly has indoor expansion valve 42, indoor heat converter 50, indoor fan 55.
Indoor expansion valve 42 is the expansion mechanisms for reduced-pressure refrigerant, is the motor-driven valve that can adjust open degree.One end of indoor expansion valve 42 was connected with liquid refrigerant communicating pipe 13, and the other end is connected with indoor heat converter 50.
Indoor heat converter 50 is the fin tube type heat exchangers played a role as evaporimeter or the condenser of cold-producing medium.In indoor heat converter 50, the cold-producing medium flowed therein and carry out heat exchange between the air of its flows outside.One end of indoor heat converter 50 is connected with indoor expansion valve 42, and its other end was connected with gas refrigerant communicating pipe 14.
Indoor fan 55 plays space indoor sucks effect from room air to the inside of indoor unit 12, and wherein, the described interior space is the refrigeration or the heating object space that comprise exsiccation.And indoor fan 55 blows to the air flowing of the interior space again after the air being inhaled into indoor unit 12 flows through the outside of indoor heat converter 50 in order to generate.
Further, indoor unit has the multiple sensors comprising indoor temperature transmitter 96, the room control unit 92 controlling each portion action forming indoor unit 12.Room control unit 92 has microcomputer and memory etc., and carry out operating the exchange of other control signal needed for indoor unit 12 etc. between remote controller 99, or via carrying out the exchange of control signal etc. between transmission line 90 and the outdoor control part 91 of outdoor unit described later 11.Indoor temperature transmitter 96 detects the air themperature of the interior space, i.e. indoor temperature.
(2-2) outdoor unit
Outdoor unit 11 be arranged on there is each room building outside or the basement etc. of building, be connected with indoor unit 13 via cold-producing medium communicating pipe 13,14, wherein, in each room described, be equipped with indoor unit 12.Outdoor unit 11 mainly comprises compressor 20, cross valve 15, outdoor heat converter 30, outdoor fan 35, outdoor expansion valve 41, supercooling motor-driven valve 63, supercooling heat exchanger 64, hydraulic fluid side shutoff valve 17, gas side shutoff valve 18 and accumulator 70.
Compressor 20 is hermetic compressor, and compressor 20 driven by electric moto used in compressor.
Cross valve 15 has four ports (connector), for switching the flow direction of cold-producing medium.During cooling operation, effect is played as the condenser of the cold-producing medium compressed by compressor 20 in order to make outdoor heat converter 30, and make indoor heat converter 50 play effect as the evaporimeter of cold-producing medium cooled in outdoor heat converter 30, while cross valve 15 is connected with one end of outdoor heat converter 30 with the discharge side refrigerant piping 29 of compressor 20, be connected with gas side shutoff valve 18 with the suction side suction passage 27 of compressor 20 (solid line with reference to the cross valve 15 of Fig. 1).And, during warming operation, effect is played as the condenser of the cold-producing medium compressed by compressor 20 in order to make indoor heat converter 50, and make outdoor heat converter 30 play effect as the evaporimeter of cold-producing medium cooled in indoor heat converter 50, while cross valve 15 is connected with gas side shutoff valve 18 with the discharge side refrigerant piping 29 of compressor 20, be connected with one end of outdoor heat converter 30 with suction passage 27 (chain-dotted line with reference to the cross valve 15 of Fig. 1).In the present embodiment, four ports of cross valve 15 are connected with the discharge side refrigerant piping 29 of suction passage 27, compressor 20, outdoor heat converter 30 and gas side shutoff valve 18.
Outdoor heat converter 30 is the heat exchanger playing effect as the condenser of cold-producing medium or evaporimeter.One end of outdoor heat converter 30 is connected with cross valve 15, and the other end is connected with outdoor expansion valve 41.
Outdoor air is sucked the inside of outdoor unit 11 by outdoor fan 35, and by the surrounding of outdoor heat converter 30 again discharged to the exterior space.
Outdoor expansion valve 41 is the expansion mechanisms for reduced-pressure refrigerant, is the motor-driven valve that can adjust open degree.Outdoor expansion valve 41, its one end is connected with outdoor heat converter 30, and its other end is connected with supercooling heat exchanger 64.Branch's bypass pipe 65 is from connecting a part of bifurcated of outdoor expansion valve 41 with the main refrigerant flow path 11a of supercooling heat exchanger 64.
Branch's bypass pipe 65 is provided with the supercooling motor-driven valve 63 that can adjust open degree.The cold-producing medium shunted from main refrigerant flow path 11a to branch's bypass pipe 65, is reduced pressure by supercooling motor-driven valve 63, flows to supercooling heat exchanger 64.
Supercooling heat exchanger 64 is the inner heat exchangers adopting sleeve structure, in primary flow path, the cold-producing medium of namely flowing in main refrigerant flow path 11a with reduced pressure by supercooling motor-driven valve 63, and carry out heat exchange between the cold-producing medium flowed branch's bypass pipe 65 in.
Reduced pressure by supercooling motor-driven valve 63 and in supercooling heat exchanger 64, carry out the cold-producing medium after heat exchange, flowing to suction passage 27.
Hydraulic fluid side shutoff valve 17 is connected with the valve carrying out the liquid refrigerant communicating pipe 13 that cold-producing medium clearing house needs between outdoor unit 11 and indoor unit 12.Gas side shutoff valve 18 is connected with the valve carrying out the gas refrigerant communicating pipe 14 that cold-producing medium clearing house needs between outdoor unit 11 and indoor unit 12, is connected with cross valve 15.Here, hydraulic fluid side shutoff valve 17 and gas side shutoff valve 18 are the triple valves comprising serve port.
Accumulator 70 is configured on the suction passage 27 between cross valve 15 and compressor 20, carries out gas-liquid separation to the cold-producing medium being back to suction passage 27 by cross valve 15 from the indoor heat converter 50 or outdoor heat converter 30 that play effect as evaporimeter.Carried out in the cold-producing medium of gas-liquid separation, gas cooler is sent to compressor 20.
Namely, the outdoor temperature sensor 95 of outdoor temperature and outdoor unit 11 has various sensor, outdoor control part 91, wherein, described various sensor comprises the temperature of sensing chamber's outer air.Outdoor control part 91 has microcomputer and memory etc., carries out the exchange of control signal etc. between the room control unit 92 of indoor unit 12 via transmission line 90a.The control part 90 of conditioner 10 is made up of these outdoor control parts 91 and room control unit 92.
(2-3) cold-producing medium communicating pipe
Cold-producing medium communicating pipe 13,14 is, when outdoor unit 11 and indoor unit 12 are installed to building, carries out the refrigerant piping of constructing at the scene.
(2-4) control part
As shown in Figure 1, control part 90 is made up of the outdoor control part 91 be connected by transmission line 90a and room control unit 92, and control part 90 is for controlling the various runnings of conditioner 10.Control part 90 accepts the detection signal of various sensor, and controls various machine according to these detection signals etc.
Be used for controlling the room control unit 92 of each indoor unit 12, there is the function accepted from the instruction of remote controller 99.The instruction of remote controller 99 carries out input operation by user, and is sent to room control unit 92 by wired, infrared ray or radio communication.The setting of indoor temperature or the input operation such as the setting of air quantity, the setting of wind direction when user utilizes remote controller 99 to carry out ON/OFF, the selection of operation mode, manual design temperature pattern.
(3) action of conditioner
Next, the action of the conditioner 10 relating to the present embodiment is described.In addition, in the following describes, the control of various running is undertaken by control part 90.
(3-1) elemental motion of cooling operation
During cooling operation, cross valve 15 is in the state represented by the solid line of Fig. 1, namely, from the gas refrigerant of compressor 20 discharge flows to outdoor heat converter 30, and the state that suction passage 27 is connected with gas side shutoff valve 18.Outdoor expansion valve 41 one-tenth is in open state, and indoor expansion valve 42 is in open degree adjustment state.In addition, after installing conditioner 10 at the scene, shutoff valve 17,18 is in opening.
In the state of this refrigerant loop, from the high-pressure gas refrigerant that compressor 20 is discharged, play the outdoor heat converter 30 of effect via cross valve 15 condenser be sent to as cold-producing medium, carry out heat exchange with the outdoor air provided by outdoor fan 35 and cooled.Being cooled in outdoor heat converter 30 and the high-pressure refrigerant of liquefaction, in supercooling heat exchanger 64, becoming supercooling state, via being sent to each indoor unit 12 liquid refrigerant communicating pipe 13.Be sent to the cold-producing medium of each indoor unit 12, the cold-producing medium of the gas-liquid two-phase state of low pressure is reduced pressure into by indoor expansion valve 42, play at the evaporimeter as cold-producing medium in the indoor heat converter 50 of effect and carry out heat exchange with room air, flash to the gas refrigerant of low pressure.When cold-producing medium and room air carry out heat exchange and heated, room air is cooled (refrigeration).And, by the low-pressure refrigerant gas of heating evaporation in indoor heat converter 50, be sent to outdoor unit 11 via gas refrigerant communicating pipe 14, via cross valve 15, be again inhaled into compressor 20 by accumulator 70.Carry out indoor refrigeration like this.
When in multiple indoor unit 12, only some indoor unit 12 operates, the indoor expansion valve 42 of the indoor unit 12 shut down stops opening (such as, totally-enclosed).Now, the indoor unit 12 during cold-producing medium f hardlyes pass through and shuts down, only carries out cooling operation to the indoor unit 12 in running.In addition, the stopping of indoor unit 12, not only comprises the stopping shut down by indoor occupant by the operation of remote controller 99, also comprises indoor temperature and reaches target temperature, room control unit 92 makes indoor expansion valve 42 be in stopping opening temporarily, i.e. so-called stopping refrigerating state.
(3-2) elemental motion of warming operation
During warming operation, cross valve 15 is in the state represented by the chain-dotted line of Fig. 1, and namely, the discharge side refrigerant piping 29 of compressor 20 is connected with gas side shutoff valve 18, and the state that suction passage 27 is connected with outdoor heat converter 30.Outdoor expansion valve 41 and indoor expansion valve 42 are in the state regulating open degree.In addition, identically with during cooling operation, shutoff valve 17,18 is in opening.
In the state of this refrigerant loop, from the high-pressure gas refrigerant that compressor 20 is discharged, via being sent to cross valve 15 and cold-producing medium communicating pipe 14 each indoor unit 12.And, be sent to the high-pressure gas refrigerant of each indoor unit 12, play in the indoor heat converter 50 of effect at the condenser as cold-producing medium, carry out heat exchange with room air respectively and cooled after, by indoor expansion valve 42, be sent to outdoor unit 11 via liquid refrigerant communicating pipe 13.When cold-producing medium and room air carry out heat exchange and be cooled, room air is heated (heating).Be sent to the high-pressure refrigerant of outdoor unit 11, become supercooling state in supercooling heat exchanger 64, reduced pressure into the cold-producing medium of gas two-phase at the night state of low pressure by outdoor expansion valve 41, the evaporimeter flowed into as cold-producing medium plays the outdoor heat converter 30 of effect.The cold-producing medium of the low-pressure gas-liquid two-phase state of inflow outdoor heat exchanger 30, is carried out heat exchange with the outdoor air provided by outdoor fan 35 and is heated, flash to low pressure refrigerant.Heat exchanger 30 low-pressure refrigerant gas out outdoor, via cross valve 15, is inhaled in compressor 20 again by accumulator 70.Like this, indoor heating is carried out.In addition, in accumulator 70, particularly residual refrigerant has been stored during warming operation.
(3-3) cooling operation in automatic mode and refrigeration target temperature thereof
As mentioned above, although cooling operation and warming operation can be switched by switching cross valve 15, but user also can select these cooling operations and warming operation with manual mode, and run under the operating condition of liking user, or select automatic mode that air attemperation apparatus is operated automatically.
Once user selects automatic mode with remote controller 99, as shown in Figure 4, the outdoor temperature that room control unit 92 is measured according to outdoor temperature sensor 95, automatic switchover cooling operation and warming operation.In principle, automatically select cooling operation when outdoor temperature is more than 20 DEG C, if outdoor temperature is lower than 20 DEG C, then automatically select warming operation.But being carry out lower than when 19 DEG C in the outdoor temperature declined gradually from cooling operation to the switching of warming operation, is carry out when the outdoor temperature risen gradually is more than 21 DEG C from warming operation to the switching of cooling operation.
Next, to the target temperature selecting in automatic mode to freeze during cooling operation, the target temperature that namely freezes is described in detail.Refrigeration target temperature is the target temperature value of room air in cooling operation.Room control unit 92 controls the open degree of indoor expansion valve 42 or the revolution of indoor fan 55, to make the indoor temperature measured by indoor temperature transmitter 96 close to refrigeration target temperature.
Fig. 3 sets refrigeration target temperature by room control unit 92 when representing and select cooling operation in automatic mode, and namely room control unit 92 carries out the control flow of automatic design temperature.First, in step s 11, room control unit 92 outdoor temperature sensor 95 obtain the data of outdoor temperature.Next, room control unit 92 reads the temperature adjusted value Tad that inputs from remote controller 99 of user from memory.This temperature adjusted value Tad is that user pre-enters, and is stored value in memory, and the standard target temperature represented by relative Fig. 4 carries out the value adjusted.In fact, the input picture of temperature adjusted value Tad is configured to relative standard's target temperature can be made temperature improve or reduce, but in the present embodiment, just the situation of relative standard's target temperature reduction temperature adjusted value is described.
As temperature adjusted value Tad, user can select 1 DEG C or 2 DEG C.After representing adjustment in Fig. 4, the chain-dotted line display user of target temperature inputs 2 DEG C as situation during temperature adjusted value Tad.
Through step S11, S12, room control unit 92 in step s 13, deducts temperature adjusted value Tad by temperature outdoor, determines tentative refrigeration target temperature.Next, in step S14, judge whether the refrigeration target temperature of fixing tentatively exceedes higher limit.Higher limit is set to 28 DEG C in default value.But higher limit becomes 27 DEG C when temperature adjusted value Tad is 1 DEG C, when temperature adjusted value Tad is 2 DEG C, higher limit becomes 26 DEG C.And, when tentative refrigeration target temperature exceedes higher limit, move to step S15, refrigeration target temperature is set as higher limit.Namely, when not having an input temp adjusted value Tad, refrigeration target temperature becomes 28 DEG C, and the target temperature that freezes when temperature adjusted value Tad is 2 DEG C becomes 26 DEG C.
In step S14, once be judged as tentative refrigeration target temperature do not exceed higher limit, then move to step S16, judge that whether tentative refrigeration target temperature is lower than lower limit.Lower limit is set to 22 DEG C in default value.But lower limit becomes 21 DEG C when temperature adjusted value Tad is 1 DEG C, when temperature adjusted value Tad is 2 DEG C, lower limit becomes 20 DEG C.And when tentative refrigeration target temperature is lower than lower limit, then move to step S17, refrigeration target temperature is set as lower limit.Namely, when not having an input temp adjusted value Tad, refrigeration target temperature becomes 22 DEG C, and the target temperature that freezes when temperature adjusted value Tad is 2 DEG C becomes 20 DEG C.
When refrigeration target temperature tentative is in step s 16 judged as lower limit or exceedes lower limit, tentative refrigeration target temperature then directly becomes refrigeration target temperature, again turns back to step S11.The flow process of this step S11 ~ S16, can carry out always, also can such as ten minutes once, regularly carry out.
According to the control flow of the automatic design temperature represented by Fig. 3, such as, when outdoor temperature is 31 DEG C, temperature adjusted value is 2 DEG C, because tentative refrigeration target temperature becomes 29 DEG C (31 DEG C-2 DEG C), exceed higher limit 26 DEG C (28 DEG C-2 DEG C), refrigeration target temperature is set to 26 DEG C.And decline to outdoor temperature at night, once outdoor temperature becomes 26 DEG C from 31 DEG C, because tentative refrigeration target temperature becomes 24 DEG C (26 DEG C-2 DEG C), become the temperature lower than higher limit 26 DEG C, these 24 DEG C are directly set to the target temperature that freezes.If outdoor temperature declines further, once outdoor temperature drops to 21 DEG C from 26 DEG C, because tentative refrigeration target temperature becomes 19 DEG C (21 DEG C-2 DEG C), lower than lower limit 20 DEG C (22 DEG C-2 DEG C), refrigeration target temperature is set to 20 DEG C of lower limit.
In Fig. 4, do not have the refrigeration target temperature of the acquiescence of input temp adjusted value Tad indicated by the solid line as standard target temperature, refrigeration target temperature when temperature adjusted value Tad is 2 DEG C represents with chain-dotted line as the target temperature after adjustment.Room control unit 92 is the alternative calculating carrying out the step S13 ~ S17 of the control flow of the automatic design temperature of Fig. 3 expression also, and after adjustment when target temperature and temperature adjusted value Tad are 1 DEG C after adjustment when being 2 DEG C using the standard target temperature represented by Fig. 4, temperature adjusted value Tad, target temperature (not shown) stores in memory as model and program.
(4) feature of conditioner
（4-1）
Relate in the conditioner 10 of the present embodiment, room control unit 92 comprises automatic mode.When carrying out cooling operation under this automatic mode, the indoor temperature of refrigeration target, the target temperature that namely freezes is determined automatically by room control unit 92.And room control unit 92 makes refrigeration target temperature and outdoor temperature link to change in automatic mode.Specifically, as shown in the step S13 of Fig. 3, between higher limit and lower limit, the value that temperature deducts temperature adjusted value Tad is outdoor set as refrigeration target temperature.
The room control unit 92 of conditioner 10, and unlike refrigeration target temperature being fixed as setting in the past, but refrigeration target temperature and outdoor temperature are linked.Therefore, also can change refrigeration target temperature when outdoor temperature is low, close to avoid temperature controller.
Such as, if do not have input temp adjusted value Tad, when using standard target temperature indicated by the solid line in Fig. 4, between higher limit 28 DEG C and lower limit 22 DEG C, outdoor temperature is directly set to the target temperature that freezes.When outdoor temperature is 27 DEG C, refrigeration target temperature becomes 27 DEG C, once outdoor temperature drops to 24 DEG C, the target temperature of interlock refrigeration therewith also becomes 24 DEG C.Suppose, if refrigeration target temperature is fixed on 27 DEG C, when outdoor temperature drops to 24 DEG C, indoor temperature also drops to lower than refrigeration target temperature 27 DEG C immediately, therefore cause stopping refrigerating state, indoor expansion valve 42 closes to minimum open degree, and cold-producing medium flows hardly in indoor unit 12.If like this, though the humidity of the low indoor of outdoor temperature is high, wish the cooling operation proceeding to have exsiccation, but conditioner can stop refrigerating state automatically.Relate in the conditioner 10 of the present embodiment, due to as mentioned above, once outdoor temperature drops to 24 DEG C, refrigeration target temperature also becomes 24 DEG C in linkage, conditioner 10 can be delayed and shift to stopping refrigerating state, the exsiccation of cooling operation can be maintained for a long time.
And, in order to avoid automatically becoming stopping refrigerating state, suppose that, if refrigeration target temperature is fixed on low temperature (such as, 23 DEG C), when outdoor temperature rises to more than 30 DEG C, conditioner 10 continues to lower the temperature to the interior space.If like this, indoor user can feel cool.And, from the viewpoint of economize energy, excessively reduce room temperature also inadvisable.To this, relate in the conditioner 10 of the present embodiment, refrigeration target temperature and outdoor temperature are linked, be unlikely excessive with the difference controlling refrigeration target temperature and outdoor temperature.Therefore, according to the conditioner 10 of the present embodiment, the comfortableness of indoor occupant can be guaranteed, and contribute to energy-conservation.
（4-2）
Relate in the conditioner 10 of the present embodiment, user is in advance from remote controller 99 input temp adjusted value Tad.And when the value that user pre-enters 1 DEG C or 2 DEG C is as temperature adjusted value Tad, refrigeration target temperature, in automatic mode, is set as only than the temperature of outdoor temperature difference temperature adjusted value Tad by room control unit 92.According to this formation, such as, user input 2 DEG C as temperature adjusted value Tad time, as illustrated by the dash-and-dot line in figure 4, become the Automatic-cooling running of target temperature after Use Adjustment, wherein, after described adjustment, target temperature is low 2 DEG C compared with standard target temperature on the whole.
Here, even if when the temperature of outdoor air declines, due to the temperature being set as lower than its outdoor temperature by refrigeration target temperature, can suppress to convert to cold-producing medium almost immobilising stopping refrigerating state in indoor heat converter 50 further.Such as, when making refrigeration target temperature consistent with outdoor temperature the standard target temperature of the Fig. 4 (time), the target temperature that freezes when outdoor temperature is 26 DEG C also becomes 26 DEG C, and indoor temperature once lower than 25 DEG C, then goes to stopping refrigerating state.But, with shown in chain-dotted line in Fig. 4, if refrigeration target temperature is set as the temperature lower than outdoor temperature, even if indoor temperature is lower than 25 DEG C, also stopping refrigerating state can not being gone to.According to this formation, the exsiccation of conditioner 10 cooling operation can be maintained for a long time.
Therefore, user's input temp adjusted value Tad, such as, when outdoor temperature is not very high wet weather (plum rains etc.) sky, can maintain the exsiccation of cooling operation for a long time, can keep comfortable indoor humidity environment.
（4-3）
Relate in the conditioner 10 of the present embodiment, room control unit 92 is set with higher limit and the lower limit of refrigeration target temperature in automatic mode.Specifically, the higher limit of acquiescence is set as 28 DEG C, lower limit is set as 22 DEG C, and the temperature adjusted value Tad according to user's input finely tunes higher limit and lower limit.
Owing to setting higher limit and the lower limit of refrigeration target temperature as described above, and the temperature province between these higher limits and lower limit makes refrigeration target temperature and outdoor temperature link, and refrigeration target temperature can be suppressed to become extremely high or low problem.
(5) variation
Although in above-described embodiment, illustrate the conditioner 10 outdoor unit 11 being connected with to multiple stage indoor unit 12, the outdoor unit that the present invention also can be applicable to more than two is included in the conditioner in a kind of refrigeration cycle.And the present invention can also be applicable to a match type conditioner outdoor unit being connected with to an indoor unit.
In addition, in the above-described embodiments, according to the temperature adjusted value Tad of user-selected input, namely the refrigeration target temperature after relative standard's target temperature reduces adjustment freezes target temperature.But, if when user is for being set as refrigeration target temperature than standard target temperature height shown in Fig. 4, can select to input corresponding temperature adjusted value Tad.Such as, indoor are provided with the home appliance of a lot of illuminating equipment or heating, or when indoor have the room conditioning cooling loads such as a lot of people very large, even if refrigeration target temperature also seldom goes to stopping refrigerating state higher than outdoor temperature.Now, user selects to make refrigeration target temperature higher than the temperature adjusted value Tad of outdoor temperature.
Claims (4)
1. a conditioner (10), it comprises:
Indoor heat converter (50), the cold-producing medium flowed therein and carry out heat exchange between the air of its flows outside;
Indoor fan (55), for the formation of the flowing of described air, this indoor fan indoor space sucks described air and makes described air flow through the outside after-blow of described indoor heat converter to the described interior space;
Indoor temperature transmitter (96), detects the described air themperature of the described interior space, i.e. indoor temperature;
Outdoor temperature sensor (95), the air themperature outside sensing chamber, i.e. outdoor temperature;
Control part (92), this control part has automatic mode, and in this automatic mode, when the evaporimeter making described indoor heat converter as described cold-producing medium plays the cooling operation of effect, setting is as the refrigeration target temperature of target indoor temperature automatically,
In described automatic mode, described control part (92) makes described refrigeration target temperature and described outdoor temperature link to change.
2. conditioner according to claim 1, is characterized in that:
In described automatic mode, described refrigeration target temperature is set as the temperature lower than described outdoor temperature by described control part (92).
3. conditioner according to claim 2, is characterized in that:
In described automatic mode, the temperature deducting setting (Tad) from described outdoor temperature is set as described refrigeration target temperature by described control part (92).
4. the conditioner according to any one of claims 1 to 3, is characterized in that:
In described automatic mode, described control part (92) makes described refrigeration target temperature link with described outdoor temperature between set upper limit temperature and lower limit temperature to change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062020.1A CN104864517A (en) | 2014-02-24 | 2014-02-24 | Air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062020.1A CN104864517A (en) | 2014-02-24 | 2014-02-24 | Air conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864517A true CN104864517A (en) | 2015-08-26 |
Family
ID=53910532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410062020.1A Pending CN104864517A (en) | 2014-02-24 | 2014-02-24 | Air conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104864517A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016610A (en) * | 2016-05-31 | 2016-10-12 | 深圳创维空调科技有限公司 | Method and system for intelligently adjusting set temperatures of air conditioning systems |
| CN110307623A (en) * | 2018-03-20 | 2019-10-08 | 松下知识产权经营株式会社 | Conditioner and air conditioning control method |
| CN114076354A (en) * | 2020-08-21 | 2022-02-22 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof and readable storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128338A (en) * | 1994-09-16 | 1996-08-07 | 株式会社日立制作所 | Air conditioner including dehumidifying function |
| CN1145468A (en) * | 1995-06-28 | 1997-03-19 | 株式会社东芝 | Air conditioner |
| CN1474105A (en) * | 2002-08-06 | 2004-02-11 | ���ǵ�����ʽ���� | Multiple system air conditioner and its control method |
| CN1920423A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Air conditioner temperature control apparatus and method therefor |
| CN102022798A (en) * | 2009-09-14 | 2011-04-20 | 财团法人资讯工业策进会 | Temperature control system, temperature control device, air conditioning device and temperature control method |
| WO2012118198A1 (en) * | 2011-03-03 | 2012-09-07 | サンデン株式会社 | Vehicle-use air conditioner |
-
2014
- 2014-02-24 CN CN201410062020.1A patent/CN104864517A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128338A (en) * | 1994-09-16 | 1996-08-07 | 株式会社日立制作所 | Air conditioner including dehumidifying function |
| CN1145468A (en) * | 1995-06-28 | 1997-03-19 | 株式会社东芝 | Air conditioner |
| CN1474105A (en) * | 2002-08-06 | 2004-02-11 | ���ǵ�����ʽ���� | Multiple system air conditioner and its control method |
| CN1920423A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Air conditioner temperature control apparatus and method therefor |
| CN102022798A (en) * | 2009-09-14 | 2011-04-20 | 财团法人资讯工业策进会 | Temperature control system, temperature control device, air conditioning device and temperature control method |
| WO2012118198A1 (en) * | 2011-03-03 | 2012-09-07 | サンデン株式会社 | Vehicle-use air conditioner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016610A (en) * | 2016-05-31 | 2016-10-12 | 深圳创维空调科技有限公司 | Method and system for intelligently adjusting set temperatures of air conditioning systems |
| CN106016610B (en) * | 2016-05-31 | 2019-06-11 | 深圳创维空调科技有限公司 | A kind of air-conditioning system intelligently adjusts the method and system of set temperature |
| CN110307623A (en) * | 2018-03-20 | 2019-10-08 | 松下知识产权经营株式会社 | Conditioner and air conditioning control method |
| CN110307623B (en) * | 2018-03-20 | 2021-10-08 | 松下知识产权经营株式会社 | Air conditioner and air conditioner control method |
| CN114076354A (en) * | 2020-08-21 | 2022-02-22 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof and readable storage medium |
| CN114076354B (en) * | 2020-08-21 | 2023-03-10 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof and readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102272534B (en) | Air conditioning apparatus | |
| KR101462745B1 (en) | Control device for an air-conditioning device and air-conditioning device provided therewith | |
| CN102865646B (en) | Air-conditioning apparatus | |
| JP5790729B2 (en) | Air conditioning system and control method thereof | |
| WO2009157191A1 (en) | Air conditioner and method for determining the amount of refrigerant therein | |
| US8069682B2 (en) | Air conditioner that corrects refrigerant quantity determination based on refrigerant temperature | |
| US11199342B2 (en) | Air conditioner | |
| US11371743B2 (en) | Air conditioning system | |
| JP4840522B2 (en) | Refrigeration equipment | |
| US20090031739A1 (en) | Air conditioner | |
| CN110741208B (en) | Air conditioner | |
| JP2007218532A (en) | Air conditioner | |
| JP5505477B2 (en) | AIR CONDITIONER AND REFRIGERANT AMOUNT JUDGING METHOD FOR AIR CONDITIONER | |
| JP5506433B2 (en) | Multi-type air conditioner | |
| JP2008292073A (en) | Air-conditioner | |
| CN104864517A (en) | Air conditioning device | |
| CN106062486B (en) | The control method of air conditioner and air conditioner | |
| JP5245575B2 (en) | Refrigerant amount determination method for air conditioner and air conditioner | |
| KR20140112681A (en) | Method of controlling an air conditioner | |
| JP6562139B2 (en) | Refrigeration equipment | |
| JP5424705B2 (en) | Refrigeration air conditioner | |
| KR101064483B1 (en) | Multi-type air conditioner having frequency correction function and frequency correction method of a inverter compressor | |
| KR101065082B1 (en) | Refrigerants volume control method of long pipe of multi type air conditioner | |
| KR20240042308A (en) | air conditioner | |
| JP2022017620A (en) | Air conditioner, and server |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |