CN1641279A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN1641279A CN1641279A CNA2004100318260A CN200410031826A CN1641279A CN 1641279 A CN1641279 A CN 1641279A CN A2004100318260 A CNA2004100318260 A CN A2004100318260A CN 200410031826 A CN200410031826 A CN 200410031826A CN 1641279 A CN1641279 A CN 1641279A
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- indoor unit
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B25/00—Stilts or the like
Abstract
The air conditioner, including an indoor unit installed in a room and having an indoor heat exchanger for exchanging heat with indoor air, and an outdoor unit connected to the indoor unit by a refrigerant pipe, installed outside, and exchanging heat with a refrigerant, is provided with a compressing part provided on the outdoor unit for varying a compression capacity of the refrigerant at more than three stages, a driving part for driving the compressing part, and a control part for controlling the driving part so that the driving part rotates at an optimal rotation speed by previously storing an optimal capacity of the compressing part and the optimal rotation speed of the driving part by a requested capacity of the indoor unit, and driving the compressing part at the optimal capacity in accordance with the requested capacity calculated by calculation of the requested capacity of the indoor unit. The air conditioner and its control method can improve energy utilization efficiency and guarante a life of a driving part for a long period of time according to the invention.
Description
Technical field
The present invention relates to air-conditioning and control method thereof, relate in particular to and to improve energy efficiency and guarantee the actuator air-conditioning and the control method thereof of long life cycle.
Background technology
Usually, air-conditioning refers to the circulation that can carry out compression, condensation, expansion and evaporative cooling agent repeatedly with the heat rooms and come the device of cool room by the evaporation heat absorption in summer by the condensation heating in the winter time.
Fig. 1 is a kind of schematic diagram of air-conditioning of the cool cycles with cooling agent compression method.
As shown in fig. 1, traditional air-conditioning comprises: indoor unit 200, and it is installed in indoor and carries out heat exchange with room air; Outdoor unit 100, it is connected to indoor unit 200 by coolant hose 300, and is installed in outdoor heat with the exchange cooling agent.
Indoor unit 200 comprises: indoor heat exchanger 202, and it is used to exchange the heat from the cold-producing medium of outdoor heat exchanger 112 or compressor 102; With indoor valve 204, it is in order to be controlled at the refrigerant amount in the refrigerating operation.
In the cooling down operation of the traditional air-conditioning with described structure, the cold-producing medium that is in high-temperature high-pressure state that discharges from compressor is dispersed into the outside with heat, and is condensed into liquid state during by outdoor heat exchanger 112 heat exchange at cold-producing medium and outdoor air.Condensed refrigerant reduces pressure when offering indoor heat exchanger 202 by refrigerant pipe 300 by outdoor heat exchanger 112.Equally, be in liquid cold-producing medium by indoor heat exchanger 202 evaporations, cold-producing medium heat absorption and cooling room air.Then, the cold-producing medium of getting back to outdoor unit 100 flows into compressor 102 and repeats above-mentioned circulation.
Simultaneously, the cold-producing medium that is in high-temperature high-pressure state that discharges from compressor 102 in heating process offers indoor unit 200 by cross valve 108, with by indoor heat exchanger 202 and room air heat exchange with the heating room air, and condensation.The cold-producing medium that is in liquid condensed reduces pressure when offering outdoor heat exchanger 112 by refrigerant pipe 300.Equally, it is converted to the cold-producing medium of gaseous state by outdoor heat exchanger 112 and outdoor air heat exchange, and the cold-producing medium of gaseous state is inhaled into compressor 102 and repeats above-mentioned circulation.
Below, have the operation process of traditional air-conditioning of described structure with reference to Fig. 2 explanation.Herein, when two compressors, 102 parallel installations, term definition is: stage-1 running refers to the situation of having only 102 runnings of a compressor, and stage-2 refer to the situation that two compressors turn round simultaneously.Sometimes, for stage-1 and stage-2 running, can operational phase-2 positive displacement compressor.
In case the air-conditioning entry into service is calculated the required capacity of indoor unit 200 at step S100 controller (not shown).At step S102, determine whether that the desired volume of indoor unit 200 reaches the capacity of stage-1 running of compressor 102.According to judged result, if stage-1 running capacity of compressor 102 reaches the required capacity of indoor unit 200, compressor 102 at step S104 with stage-1 running work.If the desired volume of indoor unit 200 surpasses the capacity of stage-1 running of compressor 102, at step S106 compressor 102 with stage-2 running work.
Fig. 3 A represents the variation characteristic according to the capacity of the variation of the revolution of the engine of Fig. 1.Fig. 3 B represents according to the coefficient of performance of the engine revolution of Fig. 1 (COP) variation characteristic.
As shown in Fig. 3 A, in the operation process of stage-1 of compressor 102, engine revolution greatly the running between 1000rpm and 2300rpm approximately reach indoor unit 200 desired properties 5% to 60%.Simultaneously, in the operation process of stage-2 of compressor 102, the engine revolution revolution between 1000rpm and 2000rpm greatly can reach 60% to 100% of indoor unit 200 desired properties.Correspondingly, to the scope of indoor unit 200 desired volumes between 5% to 100%, use stage-1 of engine revolution and optional compressor and stage-2 running just to have various capability response.
As shown in Fig. 3 B, greatly about 60% between 100% the time, need stage-2 running at the required capacity of indoor unit 200, wherein two compressors all turn round.As a result, COP becomes between 80% to 100%.Greatly between 5% to 60%, need stage-1 running at the desired volume of indoor unit 200, wherein have only a compressor operation.Disadvantageously, COP is reduced to 15% to 40%.In other words, energy efficiency worsens.
Summary of the invention
Therefore, an aspect of of the present present invention provides the long life cycle that a kind of air-conditioning and control method thereof improve energy efficiency and guarantee actuator.
Others of the present invention and characteristics will and be understood in conjunction with the accompanying drawings by following detailed description, perhaps can recognize from application of the present invention.
Aforementioned and others of the present invention can realize by a kind of air-conditioning is provided, comprise: indoor unit, described indoor unit are arranged on indoor and comprise indoor heat exchanger with the room air heat-shift; Outdoor unit, that described outdoor unit is connected to indoor unit by refrigerant pipe and be placed in outdoor, and comprise outdoor heat exchanger with the cold-producing medium heat exchange, described air-conditioning comprises: compressor, it is arranged in the described outdoor unit, and to change the compression volume of cold-producing medium more than three kinds of phase runs; The actuator that is used for the drive compression machine; And controller, described controller is stored the optimum revolution of optimum capacity and actuator in advance according to the required capacity of indoor unit, the required capacity that calculates indoor unit comes the drive compression machine with the desired volume according to calculating at optimum capacity, and is controlled at optimum revolution rotating drive part.
According to an aspect of the present invention, controller the required capacity of indoor unit under the situation on the predeterminated level with heap(ed) capacity drive compression machine, and be lower than at the required capacity of indoor unit under the situation of predeterminated level with many phase runs drive compression machine.
According to an aspect of the present invention, the capacity ratio of the middle phase run of controller compressor is set between 30% to 60%.
According to a further aspect of the invention, above-mentioned and others of the present invention also can realize by a kind of method of controlling air-conditioning is provided, described air-conditioning comprises: indoor unit, described indoor unit are installed in indoor and comprise indoor heat exchanger with the room air heat-shift; Outdoor unit, described outdoor unit is connected to indoor unit and is installed in outdoor by refrigerant pipe, and comprise the outdoor heat exchanger that carries out heat exchange with cold-producing medium, described method comprises: provide the compressor that is arranged in the outdoor unit, to change the compression volume of cold-producing medium more than three phase runs; According to the required capacity of the indoor unit revolution of the actuator of the optimum capacity of store compressed machine and drive compression machine in advance; And according to the desired volume that calculated control actuator at optimum capacity drive compression machine, and at optimum revolution rotating drive part.
According to an aspect of the present invention, the desired volume that the control actuator is included in indoor unit surpasses under the situation of predeterminated level drive compression machine on heap(ed) capacity, is lower than at the desired volume of indoor unit under the situation of predeterminated level with many phase runs drive compression machine.
According to an aspect of the present invention, the method for the control air-conditioning middle phase run that also is included in compressor is arranged on Capacity Ratio between 30% to 60%.
Description of drawings
These and/or others of the present invention and feature be readily appreciated that under situation about in conjunction with the accompanying drawings each side of the present invention being described in detail, wherein:
Fig. 1 is the schematic diagram of traditional air-conditioning;
Fig. 2 is the flow chart of the operation process of traditional air-conditioning;
Fig. 3 A and Fig. 3 B are respectively volume change characteristic and the coefficient of performance (COP) variation characteristics according to the revolution variation of the engine among Fig. 1;
Fig. 4 is the schematic diagram of air-conditioning according to an embodiment of the invention;
Fig. 5 is the control block diagram of air-conditioning according to an embodiment of the invention;
Fig. 6 A and Fig. 6 B are illustrated respectively in volume controlled pattern and COP pattern in the control procedure of compressor of phase run-4;
Fig. 7 is the control flow chart of air-conditioning according to an embodiment of the invention;
Fig. 8 and Fig. 9 be stage-2 running and stage-4 running of compressor relatively;
Figure 10 and Figure 11 have compared stage-3 running and stage-4 running of compressor;
Figure 12 A and Figure 12 B are illustrated respectively in volume controlled pattern and COP pattern in stage-3 operation process of compressor;
Figure 13 has illustrated the COP characteristic of each capacity in the operation process of stage-3 of compressor.
The specific embodiment
To be described in detail specific embodiments of the invention below, in corresponding accompanying drawing, instantiation wherein be shown, parts like the wherein similar Reference numeral representation class.Following aspect is that accompanying drawing is explained the present invention in order to reference.
Fig. 4 is the schematic diagram of air-conditioning according to an embodiment of the invention.As shown therein, air-conditioning comprises according to an embodiment of the invention: indoor unit 30, and it is installed in indoor and carries out heat exchange with room air; And outdoor unit 10, its be connected to indoor unit 30 by refrigerant pipe 40 and be installed in outdoor with the cold-producing medium heat-shift.
Herein, compressor 12 can be parallel three or a plurality of high power capacity compressor arrangement of installing, or has three phase runs or more multistage compressor with variable structure.
Fig. 5 is the signal control block diagram of air-conditioning according to an embodiment of the invention.As shown in FIG., in air-conditioning, outdoor unit 10 comprise compressor 12, drive compression machine 12 actuator 14, be used for and the outdoor controller 19 of the telecommunication circuit 16 of indoor unit 30 interaction datas, the above-mentioned parts of control, indoor unit 30 comprises the indoor temperature detector 33 that detects indoor temperature, in order to the temperature required configuration part 35 of the required temperature of configure user be used for telecommunication circuit 36 with outdoor unit 10 swap datas, and control above-mentioned component room internal controller 38.
Indoor controller 38 is transfused to the indoor temperature that detects by indoor temperature detector 33, and input is by the configuration temperature of temperature required configuration part 35 configurations.Indoor controller 38 has the cooling capacity information of himself.Indoor controller 38 can calculate the difference between indoor temperature and the configuration temperature when calculating required cooling capacity, and can be on the basis of cooling capacity of himself the required cooling capacity of calculating.Equally, can be only on the basis of the cooling capacity of indoor unit 30, calculate required cooling capacity.The required refrigeration of in indoor unit 30, being calculated/add thermal capacity to be transferred to outdoor controller 19 by telecommunication circuit 36 and 16.
Outdoor controller 19 is according to the desired volume of indoor unit 30 optimum capacity and the best engine revolution of store compressed machine 12 in advance.Compressor 12 and engine turn round according to the corresponding best capacity of desired volume and the best engine revolution of the indoor unit 30 that is transmitted from indoor controller 38.To this detailed description with reference to Fig. 6 in follow-up demonstration.
As shown in Fig. 6 A, if compressor 12 can change four phase runs, outdoor controller 19 control compressors 12 surpass at 60% o'clock with the desired volume at indoor unit 30, at the heap(ed) capacity place or the stage running.Equally, outdoor controller 19 control compressors 12 are lower than with the desired volume at indoor unit 30 under 60% the situation engine are turned round at phase run-1 to phase run-3 with the engine revolution of minimum.
Correspondingly, at phase run,, only use such as 1500rpm and following little engine revolution thereof and just can operate such as phase run-1, phase run-2, phase run-3 except operational phase-4.Equally, it can guarantee long life cycle.
Equally, as shown in Fig. 6 B, it should be noted that comparing COP with traditional air-conditioning is improved.Herein, COP represents with the relative ratios, maximum 100%.
Below, with reference to Fig. 6 A and 7 the control stream of air-conditioning according to an embodiment of the invention is described.
Indoor controller 38 calculates the desired volume of indoor unit 30 at step S10.Equally, outdoor controller 19 is controlled the capacity of compressor 12 changeably according to the desired volume of the indoor unit 30 that is calculated.
If the desired volume of indoor unit 30 can be reached by the phase run of compressor 12-1, perhaps between 5% to 25%, outdoor controller 19 makes compressor 12 runnings with phase run-1 to the desired volume of indoor unit 30 in step S12 and S14 greatly.
Simultaneously, if the desired volume of indoor unit 30 can reach and can reach by phase run-2 by phase run-1, approximately between 25% to 45%, outdoor controller 19 makes compressor 12 runnings with phase run-2 to the desired volume of perhaps required indoor unit 30 in step S16 and S18.
If the desired volume of indoor unit 30 can not reach by phase run-2, but can reach by phase run-3, perhaps between 45% to 60%, outdoor controller 19 makes compressor 12 runnings with phase run-3 to the desired volume of indoor unit 30 in step S20 and S22 greatly.If between 60% to 100%, outdoor controller 19 makes compressor 12 runnings at step S24 with phase run-4 to the desired volume of indoor unit 30 greatly.
Fig. 8 and Fig. 9 have compared the phase run-2 and the phase run-4 of compressor 12.Under the situation between 25% to 45%, phase run-4 has improved about 30% than the COP of phase run-2 at desired volume.Equally, under the situation between 45% to 60%, phase run-4 has improved about 60% than the COP of phase run-2 at required capacity.In other words, if compressor 12 is controlled in phase run-4, it approximately is area ' A ' among Fig. 9 that the situation that COP ratio piston compressor 12 is controlled in phase run-2 improves.
Figure 10 and Figure 11 have compared the phase run-3 and the phase run-4 of compressor 12.As shown in Figure 10, under the situation between 45% and 60%, phase run-4 has improved about 30% than the COP of phase run-3 at required capacity.The capacity of the corresponding efficient that is improved of the area among Figure 11 ' B ' expression.
Simultaneously, under the situation of three phase run controlled variable, the improvement of energy efficiency depends on the design of operational phase-2 of corresponding dielectric capacity at compressor 12.
As shown in Figure 12 A, if phase run-2 is designed to phase run-2 ', COP shows characteristic as shown in Figure 12B.
Below, with reference to the COP of each capacity of Figure 13 comparison.
As shown in Figure 13, be transformed under the situation of phase run-3 in running by phase run-2 from phase run-1, area ' C ' has been represented the area of running capacity, and it shows the efficient height that is transformed into the situation of phase run-3 than described running from phase run-1 by phase run-2 '.Simultaneously, be transformed into by phase run-2 ' under the situation of phase run-3 from phase run-1 in described running, the area of area ' D ' expression running capacity has better efficient than described operating at from phase run-1 by the situation that phase run-2 is transformed into phase run-3.If two areas of this of described running compare, can notice to exist an area that other area of the described relatively running of each running is shown to have better efficient.But, have than the relative bigger area of described running by the situation that phase run-2 ' is transformed into phase run-3 from phase run-1 in described running, shown better efficient.The desired volume of indoor unit 30 is that 100% probability is 1%, and desired volume is that 75% probability is 42%.Equally, desired volume is that 50% probability is 45%, and desired volume is that 25% probability is 12%.For improve frequency the highest the efficient of 50% area, decision design is that running is converted to phase run-3 from phase run-1 by phase run-2 ', rather than described running is converted to phase run-3 from phase run-1 by phase run-2.Correspondingly, in triphasic design running, the designed range of capacity of the phase run of corresponding medium phase run-2 is 30% to 60% can improve the efficient of system.
Simultaneously, although the foregoing description can three stages or the quadravalence section change the capacity of compressor 12, can use the more stage.
As mentioned above, embodiments of the invention are at optimum capacity drive compression machine 12, and at best revolution rotating drive part 14, efficient improves like this, and cycle long-life of actuator 14 is guaranteed.
As mentioned above, air-conditioning and control method thereof can improve energy efficiency and guarantee the long life cycle of actuator according to an embodiment of the invention.
Although some embodiments of the present invention are showed and are illustrated, it will be understood to those of skill in the art that under the situation that does not depart from principle of the present invention and essence, can change these embodiments, its scope also falls in claim of the present invention and the equivalent institute restricted portion thereof.
Claims (8)
1. air-conditioning comprises: indoor unit, described indoor unit are arranged on indoor and comprise indoor heat exchanger with the room air heat-shift; Outdoor unit, described outdoor unit are connected to described indoor unit by refrigerant pipe and are installed in outdoorly, and comprise and the outdoor heat exchanger of cold-producing medium heat exchange that described air-conditioning comprises:
Compressor, it is arranged in the described outdoor unit and to change the compression volume of cold-producing mediums more than three kinds of phase runs;
Be used to drive the actuator of described compressor; And
Controller, described controller is stored the optimum capacity of described compressor and the optimum revolution of actuator in advance according to the desired volume of indoor unit, calculate the desired volume of indoor unit, come the drive compression machine with desired volume at optimum capacity, and be controlled at optimum revolution rotating drive part according to calculating.
2. air-conditioning according to claim 1, it is characterized in that, described controller the required capacity of indoor unit under the situation on the predeterminated level with heap(ed) capacity drive compression machine, and be lower than at the required capacity of indoor unit under the situation of predetermined level with multistage running drive compression machine.
3. air-conditioning according to claim 1 is characterized in that, the capacity ratio of the middle phase run of described controller compressor is set between 30% to 60%.
4. air-conditioning according to claim 2 is characterized in that, the capacity ratio of the middle phase run of described controller compressor is set between 30% to 60%.
5. method of controlling air-conditioning comprises: indoor unit, described indoor unit are installed in indoor and comprise indoor heat exchanger with the room air heat-shift; Outdoor unit, described outdoor unit are connected to indoor unit by refrigerant pipe and are installed in outdoorly, and comprise the outdoor heat exchanger that carries out heat exchange with cold-producing medium, and described method comprises:
Provide the compressor that is arranged in the described outdoor unit, to change the compression volume of cold-producing medium more than three phase runs;
According to the desired volume of the indoor unit revolution of the actuator of the optimum capacity of store compressed machine and drive compression machine in advance; And
Control described actuator according to the desired volume that is calculated, with at optimum capacity drive compression machine, and at optimum revolution rotating drive part.
6. the method for control air-conditioning according to claim 5, it is characterized in that, control desired volume that described actuator is included in indoor unit and surpass under the situation of predeterminated level, be lower than at the desired volume of indoor unit under the situation of predeterminated level with many phase runs drive compression machine with heap(ed) capacity drive compression machine.
7. the method for control air-conditioning according to claim 5 is characterized in that, the middle phase run that also is included in compressor is arranged on Capacity Ratio between 30% to 60%.
8. the method for control air-conditioning according to claim 6 is characterized in that, the middle phase run that also is included in compressor is arranged on Capacity Ratio between 30% to 60%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040002382A KR100541455B1 (en) | 2004-01-13 | 2004-01-13 | Air conditioner and method of controlling the same |
| KR20042382 | 2004-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1641279A true CN1641279A (en) | 2005-07-20 |
| CN100504212C CN100504212C (en) | 2009-06-24 |
Family
ID=34825021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100318260A Expired - Fee Related CN100504212C (en) | 2004-01-13 | 2004-03-30 | Air conditioner and control method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005201630A (en) |
| KR (1) | KR100541455B1 (en) |
| CN (1) | CN100504212C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329131B (en) * | 2007-06-19 | 2010-06-02 | 三洋电机株式会社 | Control device of refrigerator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1813891A1 (en) * | 2005-03-16 | 2007-08-01 | Lg Electronics Inc. | Method for controlling air conditioner having multi-compressor |
| JP2007292406A (en) * | 2006-04-26 | 2007-11-08 | Aisin Seiki Co Ltd | Air conditioner |
| CN104838218B (en) * | 2012-12-12 | 2016-09-14 | 三菱电机株式会社 | Air-conditioning device |
| CN104730977B (en) * | 2015-02-05 | 2018-06-01 | 珠海格力电器股份有限公司 | A kind of method and air-conditioning stored and read air conditioning capacity code |
-
2004
- 2004-01-13 KR KR1020040002382A patent/KR100541455B1/en not_active IP Right Cessation
- 2004-03-30 CN CNB2004100318260A patent/CN100504212C/en not_active Expired - Fee Related
-
2005
- 2005-01-13 JP JP2005006906A patent/JP2005201630A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329131B (en) * | 2007-06-19 | 2010-06-02 | 三洋电机株式会社 | Control device of refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100504212C (en) | 2009-06-24 |
| KR20050074153A (en) | 2005-07-18 |
| KR100541455B1 (en) | 2006-01-12 |
| JP2005201630A (en) | 2005-07-28 |
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