CN109073264A - Conditioner - Google Patents
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- CN109073264A CN109073264A CN201780024214.4A CN201780024214A CN109073264A CN 109073264 A CN109073264 A CN 109073264A CN 201780024214 A CN201780024214 A CN 201780024214A CN 109073264 A CN109073264 A CN 109073264A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention provides a kind of conditioner, it cold and hot can run simultaneously, running either mode operation is run or heated with cooling in a part of indoor unit in multiple indoor units as air-conditioning object on one side, carry out heating operation or cooling operation under the mode different from the operational mode of above-mentioned a part of indoor unit in remaining indoor unit other than a part of indoor unit on one side, the conditioner has indoor heat exchanger (41a~41d), indoor fan (49a~49d), compressor (11), indoor expansion valve (42a~42d), outdoor heat exchanger (14), outdoor fan (19), four-way valve (13), outdoor expansion valve (15), cold and hot switch unit (30a~30d), and according to indoor heat exchanger (41a~41d) Air conditioning capacity control the operation control device (28) of the revolving speed of outdoor fan (19), thus, it is possible to provide it is a kind of being capable of steadily cold and hot while operation conditioner.
Description
Technical field
The present invention relates to a kind of conditioners, specifically, being for example related to that a kind of Mobyneb is cold and hot while air
Cold and hot in regulating device while while running, can adjust the air conditioning dress of the ability of non-master side operation indoor unit well
It sets.
Background technique
It is known it is a kind of in building, commercially arrange etc. in can be independent and be filled simultaneously using the air conditioning cooled and heated
It sets (Mobyneb cold and hot while conditioner).In the conditioner, the cooling operation and heating of machine indoors
The circulating direction for running the balance for considering cooling capacity and heating efficiency in the case where being mixed and determining refrigerant.Specifically
Ground is said, in the case where cooling capacity is big, switches flow path in such a way that outdoor heat exchanger becomes condenser.The fortune of this flow path
Row is referred to as " cooling main body ".On the other hand, in the case where heating efficiency is big, become the side of evaporator with outdoor heat exchanger
Formula switches flow path.The operation of this flow path is referred to as " Heating body ".
As multifunctional cold and heat conditioner simultaneously, it is known that technology described in a kind of patent document 1.In patent document
A kind of conditioner is described in 1, is had multiple use units, heat source unit and relay unit, is able to carry out cooling
Operation and heating operation.Moreover, describing what cooling operation and heating operation in multiple operations using unit were mixed
In the case of, the aggregate value of the cooling load relationship amount using unit based on cooling operation and heating operation using unit
The air conditioner load relationship quantitative change of the operation (main operation) of the biggish side of aggregate value is in the aggregate value of heating load relationship amount
It is maximum to use unit, control the running speed of compressor.In addition, the operation (secondary operation) based on the lesser side of aggregate value
Air conditioner load relationship quantitative change be it is maximum use unit, control heat source side pressure fan air quantity.
Existing technical literature
Patent document 1: Japanese Unexamined Patent Publication 2011-112233 bulletin
Summary of the invention
Subject to be solved by the invention
In the technology described in patent document 1, cold and hot while when running, outdoor draft fan is controlled, change is supplied to room
Thus the air mass flow of outer heat-exchanger controls the heat exchange amount of outdoor air with the refrigerant for flowing through outdoor heat exchanger.Cause
This, in order to inhibit heat exchange amount as far as possible, and stops outdoor draft fan.But even if outdoor draft fan stops, outdoor heat is handed over
The heat dissipation of parallel operation also due to free convection and carry out, to be unable to fully inhibit heat exchange amount sometimes.
At this point, for example becoming excessive as the cooling capacity mainly run or as secondary in the case where cooling main body
The heating efficiency of operation becomes insufficient.On the other hand, in the case where Heating body, become as the heating efficiency mainly run
Excessive or as secondary operation cooling capacity becomes insufficient.Thus, in the technology described in patent document 1, it is cold and hot simultaneously
When operation, according to atmospheric condition, cooling operation sometimes or heating operation become excessively insufficient.It is used therefore, it is impossible to sufficiently meet
Person's demand.
The present invention is completed in view of this problem, and the problem to be solved in the present invention is, providing one kind can stablize
Ground it is cold and hot and meanwhile operation conditioner.
Means for solving the problems
To solve the above-mentioned problems, the present inventors are attentively studied.Finally, it is found that following opinion.That is, this
The ancestor of invention means a kind of conditioner, cold and hot can run simultaneously, i.e., on one side as the multiple of air-conditioning object
With cooling operation or heating running either mode operation in a part of indoor unit in indoor unit, on one side in addition to this one
It is heated in remaining indoor unit other than the indoor unit of part with the mode different from the operational mode of above-mentioned a part of indoor unit
Operation or cooling operation, the conditioner are characterized in that having: multiple indoor heat exchangers are respectively arranged at
It states in multiple indoor units;Indoor fan blows room air to the indoor heat exchanger, the room air and refrigerant it
Between carry out heat exchange;Compressor is connected by being piped with above-mentioned indoor heat exchanger, transported to the circulation piping
Refrigerant is compressed;First expansion mechanism, from the compressor, which is set to the upper of refrigerant flow direction
Side or downstream side are swum, makes to expand by the refrigerant of above-mentioned piping;Outdoor heat exchanger, with above-mentioned indoor heat exchanger, on
It states compressor and above-mentioned first expansion mechanism constitutes refrigeration cycle together;Outdoor fan blows the outdoor heat exchanger
Outdoor air carries out heat exchange between the outdoor air and refrigerant;Cold and hot main body switching device, switches in above-mentioned refrigeration
Formed in a manner of being functioned in circulation using above-mentioned outdoor heat exchanger as condenser flow path cooling main body operation and
The heating master of flow path is formed in a manner of functioning in above-mentioned refrigeration cycle using above-mentioned outdoor heat exchanger as evaporator
Running body;Second expansion mechanism makes the system in above-mentioned outdoor heat exchanger after heat exchange in the operation of above-mentioned cooling main body
Cryogen expansion, or the refrigerant expansion in the operation of above-mentioned Heating body in above-mentioned outdoor heat exchanger before heat exchange;Flow path
Switching mechanism switches flow path, so that the refrigerant from above-mentioned outdoor heat exchanger is directly provided, or at above-mentioned one
The indoor heat exchanger for dividing the refrigerant in the indoor heat exchanger of indoor unit after heat exchange to be provided to remaining above-mentioned indoor unit;
And operation control device, switched flow path by above-mentioned stream switching mechanism and is being handed in the Indoor Thermal of above-mentioned a part of indoor unit
When refrigerant in parallel operation after heat exchange is provided to the indoor heat exchanger of remaining above-mentioned indoor unit, according to remaining above-mentioned interior
The air conditioning capacity of the indoor heat exchanger of machine controls the revolving speed of above-mentioned outdoor fan.
Invention effect
In accordance with the invention it is possible to provide a kind of conditioner can be steadily cold and hot while run.
Detailed description of the invention
System diagram when Fig. 1 is the cooling main body operation in the conditioner of first embodiment.
Fig. 2 is the not sharp of the balance of the cooling capacity and heating efficiency in the conditioner for indicate first embodiment
That line chart.
Process when Fig. 3 is the cooling main body operation in the conditioner of first embodiment.
System diagram when Fig. 4 is the Heating body operation in the conditioner of first embodiment.
Process when Fig. 5 is the Heating body operation in the conditioner of first embodiment.
System diagram when Fig. 6 is the cooling main body operation in the conditioner of second embodiment.
Process when Fig. 7 is the cooling main body operation in the conditioner of second embodiment.
System diagram when Fig. 8 is the Heating body operation in the conditioner of second embodiment.
Process when Fig. 9 is the Heating body operation in the conditioner of second embodiment.
Specific embodiment
Hereinafter, being suitably described with reference to mode for carrying out the present invention (present embodiment).In each embodiment
In, same reference numerals are added to same apparatus, component, description is omitted.In addition, in each flow chart of reference, it is right
Identical to control additional same steps number, description is omitted.
[1. first embodiment]
System diagram when Fig. 1 is the cooling main body operation in the conditioner 100 of first embodiment.Air conditioning
Device 100 cold and hot can be run simultaneously, i.e., on one side in a part of indoor unit of multiple indoor unit 40a, 40b, 40c, 40d with cold
But running either mode operation is run or heats, on one side in remaining indoor unit other than a part of indoor unit
To carry out heating operation or cooling operation under the mode different from the operational mode of above-mentioned a part of indoor unit.
Conditioner 100 has 1 outdoor unit 10 and is present in indoor unit 40a, 40b, 40c, 40d and outdoor unit
Cold and hot switch unit 30a, 30b, 30c, 30d (stream switching mechanism) between 10.Cold and hot switch unit 30a, 30b, 30c, 30d
Switching flow path is directly to provide indoor heat exchanger 41a, 41b the refrigerant from outdoor heat exchanger 14 or will be by being arranged
Refrigerant after indoor heat exchanger 41a, 41b heat exchange of local heating operation indoor unit 40a, 40b, which is supplied to, to be set to
The indoor heat exchanger 41d of remaining cooling operation indoor unit 40d.Meaning is " direct to indoor heat exchanger 41a, 41b herein
Refrigerant from outdoor heat exchanger 14 is provided " mean " refrigerant in outdoor heat exchanger 14 after heat exchange without
Indoor heat exchanger 41a, 41b " are supplied to by other indoor heat exchangers, i.e. indoor heat exchanger 41c, 41d.Hereinafter,
" directly providing " in this case, indicates identical meaning.
Indoor heat exchanger 41a, 41b, 41c, 41d is respectively configured in machine 40a, 40b, 40c, 40d indoors, below
It is described in detail, but these heat exchangers, compressor 11, outdoor heat exchanger 14 are connected by piping.In addition, in room
Have indoor fan 49a, 49b, 49c, 49d in inside heat exchanger 41a, 41b, 41c, 41d, indoor fan 49a, 49b, 49c,
49d passes through the room air blowed as air-conditioning object, and heat exchange is carried out between air and refrigerant.In addition, machine indoors
Have indoor expansion valve 42a, 42b, 42c, 42d (the first expansion mechanism) in 40a, 40b, 40c, 40d.
In addition, outdoor unit 10 has: high-low pressure flue side four-way valve 12 switches over so that high-low pressure gas is responsible for
22 are connected with either one or two of high-pressure side or low-pressure side;(heat exchanger side) four-way valve 13 (cold and hot main body switching device), root
Switch flow path according to cooling either one or two of main body or Heating body;Outdoor heat exchanger 14;And outdoor fan 19, by atmosphere
It is blown into outdoor heat exchanger 14 and carries out heat exchange between atmosphere and refrigerant.Moreover, above-mentioned indoor heat exchanger 41a,
41b, 41c, 41d, compressor 11, indoor expansion valve 42a, 42b, 42c, 42d and outdoor heat exchanger 14 are with can be by matching
Pipe is connected, so that refrigerant circulates.Refrigeration cycle is constituted as a result,.
In addition, outdoor unit 10 has outdoor expansion valve 15 (the second expansion mechanism), which makes to lead cooling
Refrigerant when running body in outdoor heat exchanger 14 after heat exchange, in Heating body operation in outdoor heat exchanger 15
Refrigerant expansion before making heat exchange.The function of outdoor expansion valve 15 is described below.
In addition, the valve shown in dot pattern indicates valve closing in Fig. 1, aftermentioned system diagram.In addition, in present embodiment
In, outdoor unit 10 is 1, but can similarly be set as 2 or more.In addition, in the present embodiment, showing indoor unit
40a, 40b, 40c, 40d are set as 4 examples, but can also at least be set as more than 4.
Also, indoor unit 40a is heats operation, indoor unit 40b stops heating high pressure, low pressure is heated in indoor unit 40c stopping,
Indoor unit 40d is cooling operation, it is assumed that heating operation machine is mixed operation with cooling operation machine.In addition, indoor heat exchange
Device 41a, 41b are connected to high-pressure side, and condenser, indoor heat exchanger 41c, 41d are connected to low-pressure side, play as evaporator
Effect.
Outdoor unit 10 is cold and hot while multi-functional outdoor unit, comprising: compressor 11, high-low pressure flue side four-way valve
12, four-way valve 13, outdoor heat exchanger 14, outdoor expansion valve 15 and reservoir 18.The reservoir side of compressor 11 is low pressure
Side, the four-way valve side of compressor 11 are high-pressure side.Refrigerant is conveyed by its differential pressure.
Illustrate the application method of 2 four-way valves 12,13.As the cold and hot of this object while in the case where running, height
Pressure flue side four-way valve 12 switches over, so that high-low pressure gas supervisor 22 is connected to high-pressure side.In addition, outdoor four-way valve 13
According to the equilibrium condition of indoor cooling load and heating load.I.e. according to cooling main body or Heating body, by outdoor heat exchange
Device 14 is switched to the either side in high-pressure side and low-pressure side.It, will in the case where simply cooling load is greater than heating load
Outdoor heat exchanger 14 is connected to high-pressure side and is used as condenser.This is referred to as cooling main body.It is greater than in heating load cooling negative
In the case where load, outdoor heat exchanger 14 is connected to low-pressure side and is used as evaporator.This is referred to as Heating body.Fig. 1 is cold
But an example of main body, aftermentioned Fig. 4 are an examples of Heating body.Cooling load and heating load then is described in detail using Fig. 2
Balance.
In conditioner 100, be described in detail below with cooling either one or two of main body or Heating body into
The control of the control of capable four-way valve 12,13, the control of compressor 11, outdoor expansion valve 15 is carried out by control mechanism 28.Though
It is so not shown, but control mechanism 28 has CPU (Central Processing Unit: central processing unit), RAM
(Random Access Memory: random access memory), ROM (Read Only Memory: read-only memory), I/F (connect
Mouthful) etc..Moreover, executing the regulation control program for being stored in ROM by CPU, it is achieved in control mechanism 28.
Then, illustrate the process of refrigerant.As shown in Figure 1, the outdoor heat exchanger 14 and indoor unit of outdoor unit 10
Each indoor heat exchanger 41a, 41b, 41c, 41d of 40a, 40b, 40c, 40d pass through liquid supervisor 21, high-low pressure gas supervisor 22
And low-pressure gas is responsible for 23 these three pipings and is attached.Moreover, refrigerant is in the piping internal circulation.
Firstly, a part of the high-temperature high-pressure gas refrigerant compressed by compressor 11 passes through high-low pressure flue side four-way
Valve 12 is transported to high-low pressure gas supervisor 22.Moreover, being transported to heating indoor unit 40a, heating high pressure stops indoor unit
40b condenses in each indoor heat exchanger 41a, 41b and forms high pressure liquid refrigerant, and is transported to liquid supervisor 21.By
Remaining high-temperature high-pressure gas refrigerant that compressor 11 compresses condenses to be formed in outdoor heat exchanger 14 by four-way valve 13
High pressure liquid refrigerant, and be transported to liquid supervisor 21, with the liquid refrigerant in above-mentioned indoor condensation converged and by
It is delivered to cooling indoor unit 40d.Here, being depressurized by being squeezed by indoor expansion valve 42d, evaporated in heat exchanger 41d indoors
And low-pressure refrigerant gas is formed, outdoor unit is transported to by low-pressure gas supervisor 23.Moreover, being back to by reservoir 18
Compressor 11, is recycled again.
In this way, refrigerant recycles in refrigeration cycle and transmits heat.Therefore, when studying thermal balance, preferably consider respectively
The evaporation heat exchange amount of heat exchange amount, each indoor unit 40a, 40b, 40c, 40d in outdoor heat exchanger 14, condensation heat exchange
Power in amount or compressor 11.Here, being studied in conditioner 100 referring to not Lear line chart related with thermal balance
Thermal balance.
Fig. 2 is the balance of the cooling capacity and heating efficiency in the conditioner 100 for indicate first embodiment
Not Lear line chart.In Fig. 2, horizontal axis is indicated into specific enthalpy (kJ/kg), the longitudinal axis is expressed as each portion's pressure (MPa) of refrigeration cycle.It closes
It can uniquely be found out by measurement pressure and temperature in the part of each point of not Lear line chart, state 1,3, state 4 can
It is found out according to the specific enthalpy of pressure and state 3, state 1 can be according to the characteristic or pressure and condenser and evaporation of pressure and compressor
The characteristic of device is found out.Therefore, Fig. 2 shows not Lear line chart facilitate estimate conditioner 100 operating status.
In addition, condenser is equivalent to indoor heat exchanger 41a, 41b and outdoor heat exchanger 14 in Fig. 2.In addition, steaming
Hair device is equivalent to indoor heat exchanger 41c, 41d.
Also, Fig. 2 shows not Lear line chart in, 1~state of state 2 indicate compressor 11 sucking~discharge shape
State, 2~state of state 3 indicate entrance~discharge state of evaporator, and 4~state of state 1 indicates entrance~outlet of condenser
The ratio enthalpy change of state.Moreover, when by the specific enthalpy variable quantity multiplied by circulating mass of refrigerant (kg/s), additionally it is possible to find out W (state
1~state 2): compressor power, Qcond (2~state of state 3): the heat exchange amount of condenser, Qevap (4~state of state
1): the heat exchange amount in evaporator.In addition, as can be seen from FIG. 2, setting up following formula in stable operation in these three cases
(1)。
Qcond=Qevap+W formula (1)
For the formula (1), it is easier to understand when being illustrated from refrigerant side.The heat that refrigerant is discharged by condenser
Qcond means that the heat Qevap that refrigerant is absorbed by the evaporator and compressor power W's absorbed by compressor 14 is total
Value.In thermal balance collapse for example in the smaller situation of heat discharged by condenser, in the refrigerant, therefore heat gathers
The pressure of condenser and adiabatic condensation temperature is set to rise to keep thermal balance so as to be easy to radiating mode.It is released on the contrary by condenser
It in the case that the heat put is bigger, is reduced by refrigerant heat and not in a manner of easy heat radiation, makes the pressure and condensation temperature of condenser
Degree decline is to keep thermal balance.Here, conditioner 100 as shown in Figure 1 is like that, there are multiple indoor unit 40a,
In the case where 40b, 40c, 40d, in the case that heating operation machine and cooling operation machine be mixed, only add up to heat and idea
And it has not been changed.
In the case where outdoor unit 10 is cooling main body, Qcond becomes the heat dissipation capacity Σ of all heating operation indoor unit 40a
The heat dissipation capacity Qoutdoor's of Qindoorheat and outdoor heat exchanger 14 is total.In addition, Qevap becomes all cooling operations
The caloric receptivity Σ Qindoorcool of indoor unit 40d.Therefore, it when above-mentioned thermal balance type is unfolded to Qoutdoor, is expressed as follows.
Qoutdoor=- Σ Qindoorheat+ Σ Qindoorcool+W formula (2)
When adjusting the heat dissipation capacity of outdoor heat exchanger 14, as described above, considering to adjust outdoor by control motor M
The method of the air quantity of fan 19.But such as the outdoor in atmosphere low-temperature, not can avoid stopping outdoor fan 19 yet by
Heat dissipation caused by free convection.And in the case where outdoor is blown, also cause to radiate by forced convertion.Cooling capacity as a result,
Become excessive or heating efficiency becomes insufficient.Therefore, in order to cope with such case, outdoor expansion valve is set in outdoor unit 10
15, it reduces circulating mass of refrigerant and inhibits to radiate.
In addition, as described below, be infinitely close to zero in the heat exchange amount of outdoor heat exchanger 14 [in above-mentioned formula (2),
Qoutdoor ≒ 0] in the case of, when circulating mass of refrigerant is suppressed to 0, circulating mass of refrigerant adjustment is carried out by expansion valve.
Σ Qindoorheat ≒ Σ Qindoorcool+W formula (3)
Then, in Fig. 1, consider heat exchange amount formula.Outdoor heat exchanger 14 becomes condenser as described above.In addition, room
Interior machine 40a, 40b are also all connected to high-pressure side, therefore become condenser.Moreover, the heat exchange amount of these condensers is closed
Value obtained from meter is Qcond.On the other hand, indoor unit 41c, 41d is connected to low-pressure side, therefore becomes evaporator.Due to room
Interior machine 40c is to stop indoor unit, therefore normally closed indoor expansion valve 42c, but in the case where opening expansion valve transition
It can be functioned as evaporator, therefore corresponding heat exchange amount be worth obtained from adding up to also as Qevap.
Here, when the heat exchange amount of outdoor heat exchanger (hereinafter referred to as outdoor heat exchange amount) is defined as Qod, by room
The heat exchange amount (hereinafter referred to as ability) of inside heat exchanger is defined as Qa~Qd by each indoor unit, is applied to above-mentioned formula (2)
When, obtain following formula (4).
Qod=-Qa-Qb+Qc+Qd+W formula (4)
Further, since being cooling main body, therefore cooling operation indoor unit is usually controlled by the revolving speed of compressor 11
The ability Qc+Qd of 40c, 40d.In addition, the power W of compressor 11 also with compressor 11 operating status and change.Another party
Face adjusts the ability of heating operation indoor unit 40a, 40b according to outdoor heat exchange amount Qod.In formula (4), heating is run
Ability Qa, Qb of indoor unit 40a, 40b add negative appended drawing reference, it may thus be appreciated that heating when outdoor heat exchange amount Qod increases
The ability for running indoor unit 40a, 40b reduces, the energy of heating operation indoor unit 40a, 40b when outdoor heat exchange amount Qod reduces
Power increases.That is, the heated side indoor unit as non-master side can be adjusted by adjusting outdoor heat exchange amount Qod
The ability of 40a, 40b.
By the revolving speed of change outdoor fan 19 come variable air rate, so as to adjust outdoor heat exchange amount Qod.Wherein, such as
It is upper described, even if stopping outdoor fan 19 sometimes, undesirable heat dissipation also occurs, the heating as non-master side runs indoor unit
The ability of 40c, 40d become insufficient.Therefore, in this case, after stopping outdoor fan 19, by reducing outdoor expansion
The aperture of valve 15 reduces the circulating mass of refrigerant for flowing through outdoor heat exchanger 14, increases the refrigerant for flowing through indoor unit 40a, 40b
Internal circulating load.Thereby, it is possible to make heating operation indoor unit 40c, 40d obtain heating efficiency to rise.Moreover, finally working as outdoor expansion valve
When 15 aperture is set as scheduled lower limit or less (being also possible to fully closed), since refrigerant will not flow, heat can be handed over
The amount of changing ad infinitum is suppressed to 0.
In the case that heating efficiency becomes excessive in the control process of the outdoor expansion valve 15, outdoor can be again turned on
The aperture of expansion valve 15.On the contrary even if feelings insufficient the aperture of outdoor expansion valve 15 reaches lower limit aperture and heating efficiency
Under condition, mode is switched to Heating body from cooling main body using four-way valve 13.
Process when Fig. 3 is the cooling main body operation in the conditioner 100 of first embodiment.As long as no spy
Do not mentionlet alone it is bright, then the process shown in Fig. 3 pass through control mechanism 28 (operation control device) shown in fig. 1 execute.In cooling main body fortune
When row, the cooling capacity as cooling operation indoor unit 40c, 40d for mainly running adjusts the revolving speed by adjusting compressor 11
And circulating mass of refrigerant is controlled to carry out (step S100).Such as in the insufficient situation of cooling capacity, by improving compressor
11 revolving speed come increase circulating mass of refrigerant, increase cooling capacity.On the other hand, cooling lower than set temperature etc. in blowout temperature
In the case that ability is excessive, circulating mass of refrigerant is reduced by reducing the revolving speed of compressor 11, reduces cooling capacity.Moreover,
Hereinafter, adjustment is as the heating efficiency in heating operation indoor unit 40a, 40b of secondary operation.
First, it is determined that the air conditioning capacity of heating operation indoor unit 40a, 40b are relative to the whether excessive (step of air conditioner load
S101).In the case where being judged as that ability is excessive ("Yes" direction), next, it is determined that whether the aperture of outdoor expansion valve 15 is control
Below target aperture processed (step S102).In addition, illustrating " the "No" direction of step S101 " below.
In the case where being judged as "Yes" in step s 102, the aperture of outdoor expansion valve 15 becomes larger (step S103).As a result,
Circulating mass of refrigerant in outdoor heat exchanger 14 becomes larger, and is increased by the refrigeration dose of heat exchange, therefore inhibits heating efficiency.Separately
On the one hand, in the case where being judged as "No" in step s 102, only the effect of outdoor expansion valve 15 is insufficient, therefore controls electricity
Motivation M is to increase the revolving speed (step S104) of outdoor fan 19.The heat dissipation capacity of outdoor heat exchanger 14 increases as a result, therefore presses down
Heating efficiency processed.Then, it is controlled by these, the control of conditioner 100 terminates.
In addition, judging the energy of heating operation indoor unit 40a, 40b in the case where being judged as "No" in above-mentioned steps S101
Whether power is insufficient (step S105).Here, be not it is insufficient, i.e. neither heating efficiency is excessive be also not insufficient situation under
("No" direction), heating efficiency is run well with cooling capacity balance, therefore the control of conditioner 100 terminates.
But in step s105, in the case where being judged as scarce capacity ("Yes" direction), next, it is determined that outdoor wind
Whether the revolving speed of fan 19 is greater than scheduled lower limit (step S106).Its judge as a result, the revolving speed in outdoor fan 19 is greater than
In the case where lower limit ("Yes" direction), motor M is controlled, to reduce the revolving speed (step S107) of outdoor fan 19.It is outdoor as a result,
The heat dissipation of heat exchanger 14 is inhibited, and heating efficiency increases.Then, it is controlled by these, the control of conditioner 100
Terminate.
On the other hand, in above-mentioned steps S106, in the case where the revolving speed for being judged as outdoor fan 19 is lower limit situation below
("No" direction) can not inhibit heat dissipation capacity by reducing the revolving speed of outdoor fan 19, to can not increase heating efficiency.Cause
Whether this is then greater than scheduled lower limit (step S108) in the aperture for judging outdoor expansion valve 15.In this judgment, in room
The aperture of outer expansion valve 15 is greater than in the case where lower limit ("Yes" direction), reduces the aperture (step S109) of outdoor expansion valve 15.
Reduce the circulating mass of refrigerant in outdoor heat exchanger 14 by outdoor expansion valve 15 as a result,.That is, reducing in outdoor heat exchange
The refrigeration dose of heat exchange in device 14 increases heating efficiency.
On the other hand, in the case where the aperture of outdoor expansion valve 15 is lower limit situation below ("No" direction), based on outdoor swollen
The circulating mass of refrigerant of swollen valve 15 becomes lower limit.Therefore, the aperture of outdoor expansion valve 15 is sufficiently small, can not be to outdoor expansion
Valve 15 operate and can not increase heating efficiency.In this case, switch four-way valve 13, and operational mode is switched to heating
Main body (step S110).Then, it is controlled by these, the control of conditioner 100 terminates.
In addition, in the process shown in Fig. 3, in addition to operational mode is switched to the control (step S110) of Heating body with
Outside, the later process of step S100 is carried out at intervals of set time, obtains indoor load and the cooling thermal balance with heating, thus
Control conditioner 100.
System diagram when Fig. 4 is the Heating body operation in the conditioner 100 of first embodiment.In above-mentioned example
In illustrate that the cooling running system diagram of main body and process then illustrate the running system diagram of Heating body and process.
In the Heating body operation shown in Fig. 4, the direction of four-way valve 13 different from cooling main body operation shown in fig. 1
It is connected to low-pressure side as by outdoor heat exchanger 14, outdoor heat exchanger 14 becomes evaporator.Thus, in Fig. 4, condenser
It is equivalent to indoor heat exchanger 41c, 41d.In addition, evaporator is equivalent to indoor heat exchanger 41a, 41b and outdoor heat exchanger
14。
Here, illustrating thermal balance referring to Fig. 2 in the same manner as above-mentioned cooling main body operation.It is Heating body in outdoor unit 10
In the case where, the Qcond in above-mentioned formula (1) becomes the heat dissipation capacity Σ of all heating operation indoor unit 40a, 40b
Qindoorheat.In addition, Qevap becomes caloric receptivity Σ Qindoorcool and the room of all cooling operation indoor unit 40c, 40d
The caloric receptivity Qoutdoor's of outer heat-exchanger 14 is total.Therefore, when by above-mentioned thermally equilibrated formula (1) relative to Qoutdoor exhibition
When opening, indicated as following formula (5).
Qoutdoor=Σ Qindoorheat- Σ Qindoorcool-W formula (5)
When adjusting the caloric receptivity in outdoor heat exchanger 14, the method for the air quantity of adjustment outdoor fan 19 is considered.But
As through above-mentioned cooling main body explanation, undesirable heat dissipation occurs stopping outdoor fan 19, thus with it is above-mentioned cold
But outdoor expansion valve 15 is used in the same manner the case where main body, to inhibit to radiate.
Here, indoor unit 40a, 40b are connected to high-pressure side in Fig. 4, therefore become condenser as described above, by these
The heat exchange amount of condenser, which carries out value obtained from adding up to, becomes Qcond.On the other hand, indoor unit 41c, 41d and outdoor heat are handed over
Parallel operation 14 is connected to low-pressure side, therefore becomes evaporator as described above.Being carried out value obtained from adding up to becomes Qevap.So
Afterwards, when heat exchange amount (hereinafter referred to as outdoor heat exchange amount) Qod by outdoor heat exchanger 14 is unfolded to be illustrated in Figure 1
Thermally equilibrated formula (2) when become following formula (6).
Qod=Qa+Qb-Qc-Qd-W formula (6)
Further, since being Heating body, therefore indoor unit is run to control heating generally according to the revolving speed of compressor 11
The ability Qa+Qb of 40a, 40b.In addition, the power W of compressor 11 also with compressor 11 operating status and change.Another party
Face adjusts the ability of cooling operation indoor unit 40c, 40d according to outdoor heat exchange amount Qod.In formula (6), room is run to cooling
Ability Qc, Qd of interior machine 40c, 40d add negative appended drawing reference, it may thus be appreciated that the cooling fortune when outdoor heat exchange amount Qod increases
The ability of row indoor unit 40c, 40d reduce, the ability of cooling operation indoor unit 40c, 40d when outdoor heat exchange amount Qod reduces
Increase.That is, by adjusting outdoor heat exchange amount Qod, can adjust the cold side indoor unit 40c as non-master side,
The ability of 40d.
Control motor M and thus, it is possible to adjust outdoor heat exchange amount for the revolving speed that changes air quantity to change outdoor fan 19
Qod.Wherein, as described above, even if undesirable heat dissipation also occurs sometimes when stopping outdoor fan 19, as non-master side
Cooling operation indoor unit 40a, 40b scarce capacity.Therefore, in this case, after stopping outdoor fan 19, reduce
The aperture of outdoor expansion valve 15, thus reduces the circulating mass of refrigerant for flowing through outdoor heat exchanger 14, and indoor unit is flowed through in increase
The circulating mass of refrigerant of 40c, 40d.Thereby, it is possible to improve the cooling capacity of cooling operation indoor unit 40a, 40b.Then, finally
When the aperture of outdoor expansion valve 15 is set as scheduled lower limit (being also possible to fully closed) below, refrigerant will not flow, therefore
Heat exchange amount can be ad infinitum suppressed to 0.
In the case that cooling capacity becomes excessive in the control process of the outdoor expansion valve 15, outdoor can be again turned on
The aperture of expansion valve 15.On the contrary in feelings insufficient the aperture of outdoor expansion valve 15 reaches lower limit aperture and cooling capacity
Under condition, mode is switched to cooling main body from Heating body using four-way valve 13.
Process when Fig. 5 is the Heating body operation in the conditioner 100 of first embodiment.As long as no spy
Do not mentionlet alone bright, then the process shown in Fig. 5 is executed also by control mechanism 28 shown in fig. 1.When Heating body shown in Fig. 5 is run
Process when process is run with the cooling main body shown in above-mentioned Fig. 3 is substantially identical process, therefore mainly illustrates difference.
Heating body operation when, as mainly run heating operation indoor unit 40a, 40b heating efficiency adjustment with
It likewise by the revolving speed of adjustment compressor 11 and controls circulating mass of refrigerant when cooling main body operation and carries out (step S200).
Such as in the insufficient situation of heating efficiency, increases circulating mass of refrigerant by improving the revolving speed of compressor 11, increase heating
Ability.On the other hand, in the case where heating efficiency is excessive, reduce refrigerant circulation by reducing the revolving speed of compressor 11
Amount reduces heating efficiency.Then, hereinafter, cooling capacity of the adjustment as cooling operation indoor unit 40c, 40d of secondary operation.
First, it is determined that whether the ability of cooling operation indoor unit 40c, 40d are excessive (step S201) relative to air conditioner load.
In the case where being judged as that ability is excessive ("Yes" direction), when above-mentioned cooling main body is run in the same manner as (reference Fig. 3), control room
Outer expansion valve 15, outdoor fan 19 (step S102~S104).
On the other hand, not excessive in the ability for being judged as cooling operation indoor unit 40c, 40d in above-mentioned steps S201
In the case where (the "No" direction of step S201), judge the whether insufficient (step of the ability of cooling operation indoor unit 40c, 40d
S205).Then, in the case where being judged as scarce capacity ("Yes" direction), same (referring to Fig. 3) when being run with above-mentioned cooling main body
Sample, control outdoor expansion valve 15, outdoor fan 19 (step S106~S109).
Then, can not be extensive through the control of the outdoor expansion valve 15 of step S106~S109, outdoor fan 19
In the case where cooling down service ability again, when above-mentioned cooling main body is run in the same manner as (reference Fig. 3), running mode switching.That is, cutting
It is changed to cooling main body (step S210).
As described above, executing the process shown in Fig. 3 in cooling main body operation in conditioner 100, heating
The process shown in Fig. 5 is executed in main body operation.In particular, the revolving speed of outdoor fan 19 is scheduled opens in a process in office
Although degree is hereinafter, the heat exchange amount in outdoor heat exchanger 14 is sufficiently inhibited and the case where the scarce capacity of secondary operation
Under, it can also increase secondary service ability.
In addition, for example in step S110, step S210, change main body operation.Then, in the aperture of outdoor expansion valve 15
The change is carried out when for below scheduled lower limit.Therefore, according to " aperture of outdoor expansion valve 15 " being objectively easily mastered this
Index is planted to carry out the change of main body operation, therefore can simply carry out the control of conditioner 100.
Also, as shown in above-mentioned Fig. 1, Fig. 4, in conditioner 100,21, high-low pressure gas are responsible for using liquid
Supervisor 22 and low-pressure gas are responsible for 23 these three pipings.Therefore, outdoor expansion valve 15 is only installed on outdoor unit 10, it will be able to
The process shown in Fig. 3, Fig. 5 is carried out, to be easy to flexibly use existing equipment.
[2. second embodiment]
System diagram when Fig. 6 is the cooling main body operation in the conditioner 200 of second embodiment.Fig. 6 is shown
Conditioner 200 be in cooling subject mode, outdoor heat exchanger 14 becomes condenser.In the air tune shown in Fig. 6
In regulating device 200, the number of units of outdoor unit 10 and indoor unit 40a, 40b, 40c, 40d are identical as above-mentioned conditioner 100, even
Connect these indoor units piping number be only high-voltage tube 24 and low-voltage tube 25 the two.That is, the liquid system together with gas refrigerant
Thus cryogen omits the liquid supervisor 21 of above-mentioned conditioner 100 by the high-voltage tube 24 and low-voltage tube 25 shown in Fig. 6.
In addition, conditioner 200 has: gas-liquid segregating unit 61, be used for by from outdoor unit 10 to indoor unit 40a,
The two phase refrigerant of the side 40b, 40c, 40d conveying is separated into liquid and gas;And first mechanism of decompressor 62 and the second negative booster
Structure 63 (such as being expansion valve etc.), the hydraulic and gas pressure after adjustment separation.
Also, in conditioner 200, has 15 this point of outdoor expansion valve and above-mentioned conditioner 100
It is identical, but other than outdoor expansion valve 15, it is also equipped with outdoor heat exchanger by-passing valve 17, the outdoor heat exchanger by-passing valve
17 will not make the refrigerant flow direction outdoor heat exchanger 14 for being back to outdoor unit 10 and detour.The by-passing valve 17 is simultaneously not shown, but
It is arranged at the midway for the bypass pipe being arranged in the vertical direction, can only make to circulate in the pipe being configured on the downside of vertical direction
Gas-liquid mixed refrigerant in gas refrigerant detour.
Hereinafter, illustrating the process of the refrigerant in the conditioner 200 when cooling main body operation.It is filled in air conditioning
It sets in 200, in general, 15 standard-sized sheet of outdoor expansion valve and outdoor heat exchanger by-passing valve 17 is fully closed.
Four-way valve 13 is discharged to by the high-pressure gas refrigerant that compressor 11 compresses, and is supplied to outdoor heat exchanger
14.Then, moderately being condensed in outdoor heat exchanger 14 by outdoor fan 19 becomes high-pressure two-phase refrigerant.The high pressure
Two phase refrigerant passes through the outdoor expansion valve 15 and check-valves 26 of standard-sized sheet, and is transported to gas-liquid separator by high-voltage tube 24
61.The room of first mechanism of decompressor 62 with the indoor unit of cooling operation is transported to by the isolated liquid refrigerant of gas-liquid separator 61
Between interior expansion valve 42d.On the other hand, it is transported to by the isolated saturated gas refrigerant of gas-liquid separator 61 and carries out heating fortune
Capable indoor unit 40a, 40b, and condense and become high pressure liquid refrigerant.The high pressure liquid refrigerant passes through indoor expansion valve
42a, 42b are transported between first mechanism of decompressor 62 and indoor expansion valve 42d.As a result, the high pressure liquid refrigerant with it is defeated
Send to the liquid refrigerant between above-mentioned first mechanism of decompressor 62 and the indoor expansion valve 42d for the indoor unit for carrying out cooling operation into
Row converges.
The liquid refrigerant converged in this way is depressurized by being squeezed by indoor expansion valve 42d, indoors in heat exchanger 41d with
Room air carries out heat exchange and evaporates and become low-pressure refrigerant gas.The low-pressure refrigerant gas is transported to low-voltage tube
25, compressor 11 is back to by check-valves 26 in outdoor unit 10 and is recycled again.Here, indoor in heating operation
In the case where the scarce capacity of machine 40a, 40b, reduces the air quantity of outdoor fan 19 and inhibit heat exchange.But work as outdoor
When fan 19 stops, heat exchange amount can not be further suppressed.
Therefore, even if in the case where still heating up the scarce capacity of operation after stopping outdoor fan 19, outside control room
Expansion valve 15 and outdoor heat exchanger by-passing valve 17.Specifically, reducing outdoor expansion valve 15 after the stopping of outdoor fan 19
And outdoor heat exchanger by-passing valve 17 is opened, thus make the refrigerant detour for flowing through outdoor heat exchanger 14.Outdoor heat is handed over as a result,
The heat dissipation of parallel operation 14 is inhibited, so as to ensure to heat the ability of operation indoor unit 40a, 40b.Then, if by outdoor
The aperture of expansion valve 15 is set as scheduled lower limit or less (being also possible to fully closed) and by 17 standard-sized sheet of outdoor heat exchanger by-passing valve,
Refrigerant will not be then flowed in outdoor heat exchanger 14, heat dissipation can be ad infinitum suppressed to 0.
Heating efficiency becomes excessive in the control process of the outdoor expansion valve 15 and outdoor heat exchanger by-passing valve 17
In the case of, increase the aperture of outdoor expansion valve 15 again, and reduce the aperture of outdoor heat exchanger by-passing valve 17.On the contrary,
Scheduled lower limit or less is reached in the aperture for making outdoor expansion valve 17 (to be also possible to fully closed) and heating efficiency also insufficient situation
Under, the cooling main body shown in operational mode from Fig. 6 is switched to the Heating body shown in Fig. 7 using four-way valve 13.
Process when Fig. 7 is the cooling main body operation in the conditioner 200 of second embodiment.As long as no spy
Do not mentionlet alone bright, then the process shown in Fig. 7 is executed also by the control mechanism 28 shown in Fig. 6.In addition, the process shown in Fig. 7 is basic
It is upper identical as when carrying out cooling main body operation in above-mentioned conditioner 100 process (referring to Fig. 3).Therefore, with it is upper
Centered on stating the different point of process shown in Fig. 3, illustrate the process of the conditioner 200 of second embodiment.
When running conditioner 200 to cool down main body, as described above, 15 standard-sized sheet of outdoor expansion valve, in addition, room
Heat exchanger bypass valve 17 (hereinafter, sometimes referred to simply as " by-passing valve 17 ") is fully closed.Then, in cooling main body operation, as
The adjustment of the cooling capacity mainly run carries out (step 101) by controlling the revolving speed of compressor 11.In addition, as secondary fortune
The adjustment of capable heating efficiency carries out as follows.That is, in the case where heating efficiency is excessive (the "Yes" direction of step S101),
By controlling outdoor expansion valve 15, outdoor fan 19, adjust heating efficiency (step S102~step S104).
On the other hand, in the insufficient situation of heating efficiency (the "Yes" direction of step S105), control outdoor expansion valve 15,
Outdoor fan 19 is identical as above-mentioned conditioner 100 (referring to Fig. 3), but in the conditioner 200 shown in Fig. 6
In, also control by-passing valve 17 (step S309) in addition to this.Specifically, running the ability of indoor unit 40a, 40b not in heating
The aperture of foot (the "Yes" direction of step S105) and outdoor expansion valve 15 is greater than (the "Yes" side of step S108 in the case where lower limit
To), it carries out reducing the aperture of outdoor expansion valve 15 and increases the control (step S309) of the aperture of by-passing valve 17.Pass through opening
By-passing valve 17, the circulating mass of refrigerant in outdoor heat exchanger 14 reduce, are reduced by the refrigeration dose of heat exchange.Therefore, it comes from
The heat dissipation of the refrigerant of outdoor heat exchanger 14 is inhibited, hereby it is achieved that recovery heating service ability.
System diagram when Fig. 8 is the Heating body operation in the conditioner 200 of second embodiment.Show above-mentioned
The system diagram and process of cooling main body operation are illustrated in example, then, illustrate the system diagram and process of Heating body operation.
It is different from the cooling main body operation shown in Fig. 6 in the Heating body operation shown in above-mentioned Fig. 7, four-way valve 13
Outdoor heat exchanger 14 is connected to low-pressure side towards becoming, outdoor heat exchanger becomes evaporator.Thus, in Fig. 6, condensation
Device is equivalent to indoor heat exchanger 41c, 41d.In addition, evaporator is equivalent to indoor heat exchanger 41a, 41b and outdoor heat exchange
Device 14.Hereinafter, illustrating the flowing of the refrigerant in the conditioner 200 when Heating body operation.In conditioner
In 200, as described above, in general, 15 standard-sized sheet of outdoor expansion valve, outdoor heat exchanger by-passing valve 17 are fully closed.
Four-way valve 13 is discharged to by the high-pressure gas refrigerant that compressor 11 compresses, passes through check-valves 26 and high-voltage tube 24
It is transported to gas-liquid segregating unit 61.The high-pressure gas refrigerant separated herein is transported to heating operation indoor unit 40a, 40b, and
It condenses and becomes high pressure liquid refrigerant.The high pressure liquid refrigerant is transported to first by indoor expansion valve 42a, 42b and subtracts
Between press mechanism 62 and indoor expansion valve 42d.A part of liquid refrigerant of conveying is subtracted by being squeezed by indoor expansion valve 42d
Pressure exchanges heat with room air in heat exchanger 41d indoors and is evaporated, becomes low-pressure refrigerant gas.Low-pressure gas refrigeration
Agent is transported to low-voltage tube 25.Remaining liquid refrigerant passes through second mechanism of decompressor 63 and is transported to the above-mentioned of low-voltage tube 25
Low-pressure refrigerant gas is merged as biphase gas and liquid flow.
The biphase gas and liquid flow passes through low-voltage tube 25 and is transported to outdoor heat exchanger 14 via check-valves 26.Then, with
Outdoor air carries out heat exchange and evaporates, and becomes low-pressure refrigerant gas.The low-pressure refrigerant gas is returned by four-way valve 13
It is back to compressor 11 and is recycled again.Here, in the case where the scarce capacity of cooling operation indoor unit 40c, 40d, drop
The air quantity of low outdoor fan 19 and inhibit heat exchange.Then, persistently reduce outdoor fan 19 air quantity as a result, in outdoor
In the case that fan 19 stops, cooling capacity can be increased by reducing second mechanism of decompressor 63.
But even if in the case where reducing the second mechanism of decompressor 63 still insufficient situation of cooling capacity, second mechanism of decompressor 63
It is fully closed.But in this case, in the state that only gas refrigerant flows in outdoor heat exchanger 14.Gas refrigerant
Volume flow increases compared with liquid refrigerant under mass flow same case, and flow velocity is also accelerated.Then, when flow velocity is fast,
Flow path resistance in low-voltage tube 25 is simply square directly proportional to flow velocity, therefore the pressure loss increases, as refrigeration cycle
Efficiency decline.
Therefore, in conditioner 200, after the stopping of outdoor fan 19, the knot of second mechanism of decompressor 63 is reduced
Fruit is, when being transported to the ratio of refrigerant gas of outdoor heat exchanger 14 (mass dryness fraction) increase, to beat in outdoor expansion valve 15
In the state of opening, outdoor heat exchanger by-passing valve 17 is also opened.The one of the gas refrigerant of outdoor heat exchanger 14 is flowed through as a result,
Part detour can reduce the gas flow rate of outdoor heat exchanger 14, so as to reduce the pressure loss.
Also, when cooling capacity becomes excessive in the control process of the outdoor heat exchanger by-passing valve 17, outdoor heat is handed over
Parallel operation by-passing valve 17 is extruded again.Gas refrigerant and liquid refrigerant are again applied to outdoor heat exchanger 14 as a result,.
On the other hand, the aperture of second mechanism of decompressor 63 reach scheduled lower limit or less (be also possible to fully closed) and cooling capacity not yet
In the case where foot, the Heating body shown in operational mode from Fig. 7 is switched to the cooling main body shown in Fig. 6 using four-way valve 13.
Process when Fig. 9 is the Heating body operation in the conditioner 200 of second embodiment.As long as no spy
Do not mentionlet alone bright, the process shown in Fig. 9 is executed also by the control mechanism 28 shown in Fig. 6.When Heating body shown in Fig. 9 is run
Process (referring to Fig. 5) when Heating body in process and above-mentioned conditioner 100 is run is substantially identical process, because
This mainly illustrates the distinguishing characteristics with the process shown in Fig. 5.
When running conditioner 200 with Heating body, by-passing valve 17 is fully closed and carries out heating operation.Then,
Adjustment as the heating efficiency mainly run carries out (step 201) by adjusting the revolving speed of compressor 11.In addition, as secondary
The adjustment for the cooling capacity to be run carries out as follows.That is, (the "Yes" side of step S201 in the case where cooling capacity is excessive
To), by controlling outdoor expansion valve 15, outdoor fan 19, adjust cooling capacity (step S102~step S104).
On the other hand, in the insufficient situation of cooling capacity (the "Yes" direction of step S205), control outdoor fan 19 with
Above-mentioned conditioner 100 is identical (referring to Fig. 3), but in the conditioner 200 shown in Fig. 6, in addition to this, also
Control second mechanism of decompressor 63 and by-passing valve 17.Specifically, firstly, in the cooling scarce capacity for running indoor unit 40c, 40d
The revolving speed of (the "Yes" direction of step S205) and outdoor fan 19 is greater than in the case where lower limit (the "No" direction of step S106), sentences
Whether the aperture of disconnected second mechanism of decompressor 63 is greater than lower limit (step S408).Then, it is greater than in the aperture of second mechanism of decompressor 63
In the case where lower limit ("Yes" direction), second mechanism of decompressor 63 reduces (step S409).It is supplied to cooling operation indoor unit as a result,
The refrigeration dose of 40d increases, to realize recovery cooling capacity.On the contrary, second mechanism of decompressor 63 aperture be lower limit with
In the case where lower ("No" direction), second mechanism of decompressor 63 can not be further reduced, therefore switch four-way valve 13, operational mode from
Heating body is changed to cooling main body (step S410).
As described above, executing the process shown in Fig. 7 in cooling main body operation in conditioner 200, heating
The process shown in Fig. 9 is executed in main body operation.Therefore, in the same manner as above-mentioned conditioner 100, in conditioner
In 200, also independently with outdoor state, air conditioning can be steadily carried out.
Description of symbols
10: outdoor unit;11: compressor;12: high-low pressure flue side four-way valve;13: four-way valve;14: outdoor heat exchange
Device;15: outdoor expansion valve;17: outdoor heat exchanger by-passing valve;18: reservoir;19: outdoor fan;21: liquid supervisor;22:
High-low pressure gas supervisor;23: low-pressure gas supervisor;24: high-voltage tube;25: low-voltage tube;26: check-valves;28: control mechanism;30a,
30b, 30c, 30d: cold and hot switch unit;31a, 31b, 31c, 31d: the effective expansion valve of high-low pressure gas;32a,32b,32c,
32d: the effective expansion valve of low-pressure gas;40a, 40b, 40c, 40d: indoor unit;41a, 41b, 41c, 41d: indoor heat exchanger;
42a, 42b, 42c, 42d: indoor expansion valve;49a, 49b, 49c, 49d: outdoor fan;61: gas-liquid segregating unit;62: the first decompressions
Mechanism;63: the second mechanisms of decompressor.
Claims (according to the 19th article of modification of treaty)
1. a kind of (after modification) conditioner cold and hot can be run simultaneously, i.e., on one side as the multiple of air-conditioning object
Running either mode operation is run or heats with cooling in a part of indoor unit in indoor unit, on one side in addition to this
Heating fortune is carried out with the mode different from the operational mode of above-mentioned a part of indoor unit in remaining indoor unit divided other than indoor unit
Capable or cooling operation, it is characterised in that it is characterized in that,
Above-mentioned conditioner has:
Multiple indoor heat exchangers are respectively arranged in above-mentioned multiple indoor units;
Indoor fan blows room air to the indoor heat exchanger, hot friendship is carried out between the room air and refrigerant
It changes;
Compressor is connected by being piped with above-mentioned indoor heat exchanger, to the circulation piping transported refrigerant into
Row compression;
First expansion mechanism, from the compressor, which is set to the upstream side or downstream of refrigerant flow direction
Side makes the refrigerant expansion for flowing through above-mentioned piping;
Outdoor heat exchanger is constituted together with above-mentioned indoor heat exchanger, above-mentioned compressor and above-mentioned first expansion mechanism
Refrigeration cycle;
Outdoor fan blows outdoor air to the outdoor heat exchanger, hot friendship is carried out between the outdoor air and refrigerant
It changes;
Cold and hot main body switching device switches cooling main body operation and Heating body operation, which operates to, above-mentioned
Flow path is formed in a manner of functioning in refrigeration cycle using above-mentioned outdoor heat exchanger as condenser, Heating body operation
To form flow path in a manner of functioning in above-mentioned refrigeration cycle using above-mentioned outdoor heat exchanger as evaporator;
Second expansion mechanism makes the refrigeration in above-mentioned outdoor heat exchanger after heat exchange in the operation of above-mentioned cooling main body
Agent expansion, or the refrigerant expansion in the operation of above-mentioned Heating body in above-mentioned outdoor heat exchanger before heat exchange;
Stream switching mechanism switches flow path, so that the refrigerant from above-mentioned outdoor heat exchanger is directly provided, Huo Zhe
Refrigerant in the indoor heat exchanger of above-mentioned a part of indoor unit after heat exchange is provided to the interior of remaining above-mentioned indoor unit
Heat exchanger;And
Operation control device is being switched flow path by above-mentioned stream switching mechanism and is being handed in the Indoor Thermal of above-mentioned a part of indoor unit
When refrigerant in parallel operation after heat exchange is provided to the indoor heat exchanger of remaining above-mentioned indoor unit, according to remaining above-mentioned interior
The air conditioning capacity of the indoor heat exchanger of machine controls the revolving speed of above-mentioned outdoor fan,
In the case where the revolving speed of above-mentioned outdoor fan becomes scheduled lower limit situation below, above-mentioned operation control device is according to above-mentioned
Air conditioning capacity when cooling main body operation as the indoor heat exchanger of remaining above-mentioned indoor unit of heating operation, it is above-mentioned to control
Second expansion mechanism, according to the indoor heat exchange when above-mentioned Heating body is run as remaining above-mentioned indoor unit of cooling operation
The air conditioning capacity of device controls above-mentioned second expansion mechanism, thus adjusts the circulating mass of refrigerant of above-mentioned outdoor heat exchanger.
(2. deletion)
3. a kind of (after modification) conditioner cold and hot can be run simultaneously, i.e., on one side as the multiple of air-conditioning object
Running either mode operation is run or heats with cooling in a part of indoor unit in indoor unit, on one side in addition to this
Heating fortune is carried out with the mode different from the operational mode of above-mentioned a part of indoor unit in remaining indoor unit divided other than indoor unit
Capable or cooling operation, which is characterized in that
Above-mentioned conditioner has:
Multiple indoor heat exchangers are respectively arranged in above-mentioned multiple indoor units;
Indoor fan blows room air to the indoor heat exchanger, hot friendship is carried out between the room air and refrigerant
It changes;
Compressor is connected by being piped with above-mentioned indoor heat exchanger, to transported refrigerant in the piping of circulating
It is compressed;
First expansion mechanism, from the compressor, which is set to the upstream side or downstream of refrigerant flow direction
Side makes the refrigerant expansion for flowing through above-mentioned piping;
Outdoor heat exchanger is constituted together with above-mentioned indoor heat exchanger, above-mentioned compressor and above-mentioned first expansion mechanism
Refrigeration cycle;
Outdoor fan blows outdoor air to the outdoor heat exchanger, hot friendship is carried out between the outdoor air and refrigerant
It changes;
Cold and hot main body switching device switches cooling main body operation and Heating body operation, which operates to, above-mentioned
Flow path, Heating body operation are formed in a manner of functioning in refrigeration cycle using above-mentioned outdoor heat exchanger as condenser
To form flow path in a manner of functioning in above-mentioned refrigeration cycle using above-mentioned outdoor heat exchanger as evaporator;
Second expansion mechanism makes the refrigerant when above-mentioned cooling main body is run in above-mentioned outdoor heat exchanger after heat exchange
Expansion or the refrigerant expansion in the operation of above-mentioned Heating body in above-mentioned outdoor heat exchanger before heat exchange;
Stream switching mechanism, switch flow path, so as to the refrigerant from above-mentioned outdoor heat exchanger be directly provided or
Refrigerant in the indoor heat exchanger of above-mentioned a part of indoor unit after heat exchange is provided to the interior of remaining above-mentioned indoor unit
Heat exchanger;And
Operation control device is being switched flow path by above-mentioned stream switching mechanism and is being handed in the Indoor Thermal of above-mentioned a part of indoor unit
When refrigerant in parallel operation after heat exchange is provided to the indoor heat exchanger of remaining above-mentioned indoor unit, according to remaining above-mentioned interior
The air conditioning capacity of the indoor heat exchanger of machine controls the revolving speed of above-mentioned outdoor fan,
When the revolving speed of above-mentioned outdoor fan becomes scheduled lower limit or less, above-mentioned operation control device is expanded by above-mentioned second
Mechanism adjusts the circulating mass of refrigerant of above-mentioned outdoor heat exchanger, also, in the refrigerant circulation of above-mentioned second expansion mechanism
When amount becomes lower limit, above-mentioned operation control device runs operational mode from above-mentioned cooling main body operation and above-mentioned Heating body
Either one is switched to another party.
(4. after modification) conditioner according to claim 1 or 3, which is characterized in that
Above-mentioned multiple indoor heat exchangers are responsible for above-mentioned outdoor heat exchanger by the liquid that liquid refrigerant flows through and gas
Two gases supervisor that cryogen flows through is attached.
(5. after modification) conditioner according to claim 1 or 3, which is characterized in that
In times of the cooling operation of the main body as cooling main body operation or the heating operation of the main body as Heating body operation
It is carried out in one in the indoor unit being heated or cooled as the operational mode different from main body,
When the ability of the indoor unit is excessive for air conditioner load, above-mentioned operation control device is with the system of above-mentioned outdoor heat exchanger
The increased mode of refrigerant cycle amount controls above-mentioned second expansion mechanism,
When the ability of the indoor unit is for air conditioner load deficiency, above-mentioned operation control device is with the system of above-mentioned outdoor heat exchanger
The mode of refrigerant cycle amount reduction controls above-mentioned second expansion mechanism.
6. conditioner according to claim 5, which is characterized in that
When the ability of above-mentioned indoor unit is excessive for air conditioner load, above-mentioned operation control device is with above-mentioned outdoor heat exchanger
The increased mode of heat dissipation capacity improves the revolving speed of above-mentioned outdoor fan,
When the ability of above-mentioned indoor unit is for air conditioner load deficiency, above-mentioned operation control device is with above-mentioned outdoor heat exchanger
The mode that heat dissipation capacity reduces reduces the revolving speed of above-mentioned outdoor fan.
Illustrate or states (according to the 19th article of modification of treaty)
(1)
It is revised as in claim 1, has added composition in the invention constitutive requirements that claim 1 before a modification is recorded
Important document, this composition important document be limited to outdoor fan revolving speed become scheduled lower limit situation below under operation control device institute into
Capable control content.The control content of the operation control device limited by the modification is will limit in the claim 2 before modification
The control content of operation control device when being further divided into the operation of cooling main body and when Heating body is run each situation come it is detailed
It is thin to limit.
In addition, the control content when cooling main body for the operation control device limited in claim 1 is run, is recorded
Paragraphs [0033]-[0034], paragraph [0049]-[0050], Fig. 3 when application etc..In addition, being transported for Heating body
Control content when row is recorded in paragraphs [0033]-[0034], paragraph [0049]-[0050], Fig. 3 etc. when application.
In contrast, outdoor fan is not documented in the document 1-6 quoted in the position paper of international survey organ
Revolving speed becomes the control content of the conditioner in scheduled lower limit situation below, or it is controlled describing
Method it is also different from the control method of operation control device limited in modified claim.
Therefore, invention involved in modified claim 1 has novelty and creativeness.
(2)
Modified claim 3 is that will be determined as in the position paper of international survey organ with novelty and creativeness
Modification before the record of claim 3 (reference modification before claim 1 and 2) be revised as the claim of absolute version
It records.Therefore, invention involved in modified claim 3 has novelty and creativeness.
(3)
Based on the claim 2 and power by the claim 3 before modification as absolute version for being revised as deleting before modification
Benefit requires, and the claim of reference is revised as claim 1 or 3 from claims 1 or 2 by modified claim 4,5.Separately
Outside, it does not modify for quoting the claim 6 of claim 5.
Therefore, because as above-mentioned modified claim 1 and 3 has novelty and creativeness, therefore modified power
Benefit, which requires 4-6 also, has novelty and creativeness.
Claims (6)
1. a kind of conditioner cold and hot can be run simultaneously, i.e., on one side in multiple indoor units as air-conditioning object
A part of indoor unit in cooling operation or heat running either mode operation, on one side in addition to a part of indoor unit
Heating operation or cooling are carried out with the mode different from the operational mode of above-mentioned a part of indoor unit in remaining indoor unit in addition
Operation, it is characterised in that it is characterized in that,
Above-mentioned conditioner has:
Multiple indoor heat exchangers are respectively arranged in above-mentioned multiple indoor units;
Indoor fan blows room air to the indoor heat exchanger, hot friendship is carried out between the room air and refrigerant
It changes;
Compressor is connected by being piped with above-mentioned indoor heat exchanger, to the circulation piping transported refrigerant into
Row compression;
First expansion mechanism, from the compressor, which is set to the upstream side or downstream of refrigerant flow direction
Side makes the refrigerant expansion for flowing through above-mentioned piping;
Outdoor heat exchanger is constituted together with above-mentioned indoor heat exchanger, above-mentioned compressor and above-mentioned first expansion mechanism
Refrigeration cycle;
Outdoor fan blows outdoor air to the outdoor heat exchanger, hot friendship is carried out between the outdoor air and refrigerant
It changes;
Cold and hot main body switching device switches cooling main body operation and Heating body operation, which operates to, above-mentioned
Flow path is formed in a manner of functioning in refrigeration cycle using above-mentioned outdoor heat exchanger as condenser, Heating body operation
To form flow path in a manner of functioning in above-mentioned refrigeration cycle using above-mentioned outdoor heat exchanger as evaporator;
Second expansion mechanism makes the refrigeration in above-mentioned outdoor heat exchanger after heat exchange in the operation of above-mentioned cooling main body
Agent expansion, or the refrigerant expansion in the operation of above-mentioned Heating body in above-mentioned outdoor heat exchanger before heat exchange;
Stream switching mechanism switches flow path, so that the refrigerant from above-mentioned outdoor heat exchanger is directly provided, Huo Zhe
Refrigerant in the indoor heat exchanger of above-mentioned a part of indoor unit after heat exchange is provided to the interior of remaining above-mentioned indoor unit
Heat exchanger;And
Operation control device is being switched flow path by above-mentioned stream switching mechanism and is being handed in the Indoor Thermal of above-mentioned a part of indoor unit
When refrigerant in parallel operation after heat exchange is provided to the indoor heat exchanger of remaining above-mentioned indoor unit, according to remaining above-mentioned interior
The air conditioning capacity of the indoor heat exchanger of machine controls the revolving speed of above-mentioned outdoor fan.
2. conditioner according to claim 1, which is characterized in that
When the revolving speed of above-mentioned outdoor fan becomes scheduled lower limit or less, above-mentioned operation control device is expanded by above-mentioned second
Mechanism adjusts the circulating mass of refrigerant of above-mentioned outdoor heat exchanger.
3. conditioner according to claim 2, which is characterized in that
When the circulating mass of refrigerant of above-mentioned second expansion mechanism becomes lower limit, above-mentioned operation control device is by operational mode from upper
It states any of cooling main body operation and the operation of above-mentioned Heating body side and is switched to another party.
4. conditioner according to claim 1 or 2, which is characterized in that
Above-mentioned multiple indoor heat exchangers are responsible for above-mentioned outdoor heat exchanger by the liquid that liquid refrigerant flows through and gas
Two gases supervisor that cryogen flows through is attached.
5. conditioner according to claim 1 or 2, which is characterized in that
In times of the cooling operation of the main body as cooling main body operation or the heating operation of the main body as Heating body operation
It is carried out in one in the indoor unit being heated or cooled as the operational mode different from main body,
When the ability of the indoor unit is excessive for air conditioner load, above-mentioned operation control device is with the system of above-mentioned outdoor heat exchanger
The increased mode of refrigerant cycle amount controls above-mentioned second expansion mechanism,
When the ability of the indoor unit is for air conditioner load deficiency, above-mentioned operation control device is with the system of above-mentioned outdoor heat exchanger
The mode of refrigerant cycle amount reduction controls above-mentioned second expansion mechanism.
6. conditioner according to claim 5, which is characterized in that
When the ability of above-mentioned indoor unit is excessive for air conditioner load, above-mentioned operation control device is with above-mentioned outdoor heat exchanger
The increased mode of heat dissipation capacity improves the revolving speed of above-mentioned outdoor fan,
When the ability of above-mentioned indoor unit is for air conditioner load deficiency, above-mentioned operation control device is with above-mentioned outdoor heat exchanger
The mode that heat dissipation capacity reduces reduces the revolving speed of above-mentioned outdoor fan.
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JP2016-083665 | 2016-04-19 | ||
JP2016083665A JP6723640B2 (en) | 2016-04-19 | 2016-04-19 | Air conditioner |
PCT/JP2017/007692 WO2017183308A1 (en) | 2016-04-19 | 2017-02-28 | Air conditioner |
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JP (1) | JP6723640B2 (en) |
CN (1) | CN109073264B (en) |
WO (1) | WO2017183308A1 (en) |
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KR102266359B1 (en) * | 2020-01-16 | 2021-06-17 | 엘지전자 주식회사 | Control Method of the Air Conditioner System for Simultaneous Cooling and Heating and Air Conditioner System using the same |
CN114211929B (en) * | 2021-11-25 | 2023-11-28 | 三一重机有限公司 | Air conditioner control method, air conditioner control system and working machine |
EP4227605A1 (en) * | 2022-02-11 | 2023-08-16 | Daikin Europe N.V. | Refrigeration device |
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JPH0599525A (en) * | 1991-10-09 | 1993-04-20 | Matsushita Refrig Co Ltd | Multi-chamber type air conditioner |
JP2531256B2 (en) * | 1989-02-17 | 1996-09-04 | 三菱電機株式会社 | Air conditioner |
JP2002130861A (en) * | 2000-10-20 | 2002-05-09 | Hitachi Ltd | Air conditioner |
JP2006343052A (en) * | 2005-06-10 | 2006-12-21 | Hitachi Ltd | Simultaneous cooling and heating multi-air conditioner |
CN102713461A (en) * | 2009-12-28 | 2012-10-03 | 大金工业株式会社 | Heat-pump system |
WO2013093966A1 (en) * | 2011-12-21 | 2013-06-27 | 日立アプライアンス株式会社 | Air conditioner |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2777176B2 (en) * | 1989-02-27 | 1998-07-16 | 株式会社東芝 | Air conditioner |
JP4399667B2 (en) * | 2004-09-08 | 2010-01-20 | 日立アプライアンス株式会社 | Air conditioner |
-
2016
- 2016-04-19 JP JP2016083665A patent/JP6723640B2/en active Active
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2017
- 2017-02-28 CN CN201780024214.4A patent/CN109073264B/en active Active
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2531256B2 (en) * | 1989-02-17 | 1996-09-04 | 三菱電機株式会社 | Air conditioner |
JPH0599525A (en) * | 1991-10-09 | 1993-04-20 | Matsushita Refrig Co Ltd | Multi-chamber type air conditioner |
JP2002130861A (en) * | 2000-10-20 | 2002-05-09 | Hitachi Ltd | Air conditioner |
JP2006343052A (en) * | 2005-06-10 | 2006-12-21 | Hitachi Ltd | Simultaneous cooling and heating multi-air conditioner |
CN102713461A (en) * | 2009-12-28 | 2012-10-03 | 大金工业株式会社 | Heat-pump system |
WO2013093966A1 (en) * | 2011-12-21 | 2013-06-27 | 日立アプライアンス株式会社 | Air conditioner |
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JP6723640B2 (en) | 2020-07-15 |
CN109073264B (en) | 2021-09-21 |
JP2017194202A (en) | 2017-10-26 |
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