CN101086365A - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN101086365A
CN101086365A CN 200610014097 CN200610014097A CN101086365A CN 101086365 A CN101086365 A CN 101086365A CN 200610014097 CN200610014097 CN 200610014097 CN 200610014097 A CN200610014097 A CN 200610014097A CN 101086365 A CN101086365 A CN 101086365A
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CN
China
Prior art keywords
value
temperature
stage
fan
control
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CN 200610014097
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Chinese (zh)
Inventor
李采昊
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乐金电子(天津)电器有限公司
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Priority to CN 200610014097 priority Critical patent/CN101086365A/en
Publication of CN101086365A publication Critical patent/CN101086365A/en

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Abstract

The invention discloses an air-conditioner and the control method. The air-conditioner comprises the following parts: more than two outdoor fans, a driving section of the outdoor fan, a capacity detecting section, an outdoor temperature detecting section, an output temperature detecting section, a saving section, a control section, a compressor and a timer. The method comprises the following steps: the first step, starting a fan in the upper outdoor fan or the lower outdoor fan; the second step, detecting the capacity and the outdoor temperature of the indoor machine and judging if the condition is met when the outdoor fan is started; the third step, starting the upper outdoor fan and the lower outdoor fan and executing the second step again when the condition is met, detecting the coolant temperature through the compressor when the condition isn't met; the fourth step, controlling and starting the outdoor fan according to the coolant temperature. The invention avoids the freezing phenomenon of the indoor machine and the compressor, which achieves the continuous and steady refrigerating operation.

Description

Air-conditioner and control method thereof
Technical field
The present invention relates to a kind of air-conditioner.Particularly relate to a kind of under the low situation of indoor and outdoor temperature, can stable continuous the air-conditioner and the control method thereof of running.
Background technology
Usually, air-conditioner is meant after the interior hot-air of suction chamber, make it become cold gas and output to indoor cyclic process repeatedly once more indoor environment is cooled off, perhaps utilize its mutually reverse circulating process, cold/heating system that indoor environment is heated through heat exchange.
Such air-conditioner provides various forms of air-conditioners in order to select to be provided with according to the volume that the condition and the interior space are set, and its kind comprises: indoor set, the incorporate window air conditioner of off-premises station; Indoor set and off-premises station respectively have one detachable air conditioner respectively; On an off-premises station, be connected with the one-driven-several type air-conditioner of several indoor sets.
Wherein, one-driven-several type air-conditioner can be divided into according to its acting characteristic classification: 2 compressors, 2 circular forms and 2 compressors, 1 circular form and 1 compressor separating and condensing type etc., what wherein mainly use in the diversified environment of the capacity of indoor set is 2 compressors, 2 circular forms, promptly is that the center is separated into/descends circulation with the condenser.
The course of work of the one-driven-several type air-conditioner of 2 compressors, 2 circular forms and act on as follows.At first, the situation the when Capacity design of compressor all turns round according to indoor evaporator, if the running quantity of indoor set is few, then the capacity of compressor will be greater than the capacity of indoor set, the therefore main frequency-changeable compressor that uses.By using frequency-changeable compressor, can carry out correspondence according to the revolution that the range of capacity of indoor set is adjusted compressor.
But, even the revolution of frequency-changeable compressor is reduced to minimum, at the capacity of indoor set hour, the phenomenon of the capacity of compressor greater than the indoor set capacity that is turned round can take place also.And, when being to use at the uniform velocity compressor not using frequency-changeable compressor, can't satisfy the Capacity Ratio of compressor and indoor set.Thus, when 1 indoor set running of capacity minimum, because the coolant quantity deficiency that flows into, the refrigerant temperature of suction port of compressor will be reduced to below 0 degree, thus the phenomenon that generation is frozen on the suction port of compressor.
In order to address this is that, the method for control room external fan has been proposed.In this outdoor fan controlling method, one-driven-several type air-conditioner comprises: the capacity check portion that is used to detect the indoor set capacity; Be used to detect the temperature detecting part of outdoor temperature; Capacity that capacity check portion and temperature detecting part are detected and temperature and reference data compare the control part of calculating; Outdoor fan drive division according to the order priming chamber external fan of control part.
Control part compares capacity check portion and the temperature detecting part value that detects and capacity and the temperature value set, and generates and export startup, the stop signal of outdoor fan according to result relatively.According to the outdoor fan startup of control part output, the signal that stops, the outdoor fan entry into service that is connected with the outdoor fan drive division.
In order to utilize the running of aforesaid structure control outdoor fan, at first control part is set the capability value and the outdoor temperature value of indoor set in advance.Here, the outdoor temperature value is set at the 1st temperature value and the 2nd temperature value, and the 1st temperature value is greater than the 2nd temperature value.After the indoor set entry into service, the capacity of indoor set detects in capacity check portion, and temperature detecting part sends to control part with the result after detecting outdoor temperature.Capability value that control part relatively detects and the indoor set capability value of setting in advance.When the indoor set capability value that detects surpasses the capability value of setting, send the signal of priming chamber external fan for the outdoor fan drive division, the upper and lower part outdoor fan is all started.In contrast, when the capability value that is detected during, carry out next stage, i.e. the indoor temperature comparison phase less than the capability value set.
Control part compares temperature value and the 1st temperature value that temperature detecting part detects, and when the temperature value that is detected has surpassed the 1st temperature value, sends enabling signal for the outdoor fan drive division, and the outdoor fan of upper and lower part is all started.
If more whether the temperature value that is detected less than the 1st temperature value, then compares with the 2nd temperature value, less than the 2nd temperature value.Upper and lower part outdoor fan if the temperature value that is detected surpasses the 2nd temperature value in turning round remains in operation.And opposite, if the temperature value that is detected less than the 2nd temperature value, then control part sends the signal that stops the bottom compartment external fan for the outdoor fan drive division, stops the rotation of bottom fan thus.
And control part judges whether ceasing and desisting order of cooling operation continuously, ceases and desist order if exist, then finish all processes, if the order that does not stop then getting back in the 2nd stage by the startup of control room external fan, carries out the cooling operation of air-conditioner continuously.
According to the control method of above-mentioned outdoor fan, be under the situation of low temperature in outdoor temperature, realized continuous cooling.But aforesaidly just utilize 2 variablees to come the control room external fan, the then startup of control room external fan accurately, have can't corresponding various conditions problem, that is, require under multiple condition, outdoor fan to be controlled.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of output temperature with indoor set capacity and outdoor temperature and the refrigerant by compressor as controlling elements, under the low environment of outdoor temperature, make the running that air-conditioner can be continuous, and, be a kind of FEEDBACK CONTROL of having carried out indoor set capacity and the outdoor temperature and the output temperature of corresponding variation, thereby can better keep the balance of freeze cycle, improved the air-conditioner and the control method thereof of reliability of products thus.
The technical solution adopted in the present invention is: a kind of air-conditioner and control method thereof, and its air-conditioner includes: plural at least outdoor fan; The drive division that is used for the priming chamber external fan; Be used to detect the capacity check portion of the capacity of indoor set; Be used to detect the outdoor temperature test section of outdoor temperature; Be used to detect the output temperature test section of the output temperature of the refrigerant that compressor discharges; Be used to preserve the storage part of a reference value of the capacity of indoor set and outdoor temperature and output temperature; Detected value and a reference value that capacity check portion and temperature detecting part are detected compare judgement, and according to the control part of the startup of judged result control room external fan; Refrigerant is compressed into the compressor of high-temperature high-pressure state; Be used to detect the timer of compressor operating time.Control part is according to the relatively judgement of detected value and a reference value, and control is carried out the actuating section outdoor fan or started whole outdoor fans or stop a kind of control of outdoor fan in starting.
The control method of its air-conditioner comprises: (a) behind the power connection, start the stage of a certain fan in upper chambers external fan or the bottom compartment external fan; (b) in the outdoor fan start-up course, detect the capacity and the outdoor temperature of indoor set, judge whether the stage of full condition; (c), carry out (b) stage once more when starting upper chambers external fan and bottom compartment external fan, if do not satisfy condition then detects stage of the temperature of the refrigerant that passes through compressor in (b) stage when satisfying condition; (d) according to stage of the temperature of refrigerant control priming chamber external fan.Just start the upper chambers external fan in stage at (a).
At (d) in the stage, when output temperature does not reach the 1st a reference value, carry out the stage of detecting compressor operating time, and when compressor operating time does not surpass a reference value, carry out (b) stage once more, when compressor operating time had surpassed a reference value, execution stopped to start upper chambers external fan and bottom compartment external fan, and detected the stage of the output temperature of the refrigerant that passes through compressor.
In the stage of detecting output temperature, when the output temperature that detects has surpassed the 2nd a reference value, start the desk fan in upper chambers external fan or the bottom compartment external fan, and carry out (b) stage once more, and when the output temperature that detects does not reach the 2nd a reference value, detect indoor set capacity and outdoor temperature, judge whether to satisfy condition, when satisfying condition, start upper chambers external fan and bottom compartment external fan, when not satisfying condition, continue to judge whether output temperature has surpassed the 2nd a reference value.
At (d) in the stage, when output temperature surpasses the 1st a reference value, detect indoor set capacity and outdoor temperature, judge whether to satisfy condition, when satisfying condition, start upper chambers external fan and bottom compartment external fan simultaneously, and carry out (b) stage once more, when not satisfying condition, carry out the stage of detecting output temperature and compressor operating time once more.
When the output temperature that is detected does not reach the 4th a reference value, carry out (b) stage once more, and surpassed the 4th a reference value at output temperature, and the duration of runs of compressor is not when surpassing a reference value, carry out (b) stage once more, judge that output temperature has surpassed the 4th a reference value, and when having surpassed a reference value the duration of runs of compressor, start upper chambers external fan and bottom compartment external fan simultaneously, detect the stage of output temperature once more.
In the stage of detecting output temperature, when output temperature has surpassed the 3rd a reference value, detect indoor set capacity and outdoor temperature, judge whether to satisfy condition, when satisfying condition, carry out (b) stage once more, and when not satisfying condition, continue to judge whether output temperature has surpassed the 3rd a reference value, when the output temperature that detects during, start the desk fan in upper chambers external fan or the bottom compartment external fan, and carry out (b) stage once more less than the 3rd a reference value.
Air-conditioner of the present invention and control method thereof, will be according to the startup of the output temperature control room external fan of the capacity of indoor set, outdoor temperature and the refrigerant by compressor, thus under the low state of indoor and outdoor temperature, prevent the icing phenomenon of indoor set and compressor, and can realize the cooling operation of steady and continuous.And the present invention has carried out the control procedure of feeding back according to indoor set capacity, outdoor temperature and output temperature, can better keep the balance of freeze cycle, has improved reliability of products.
Description of drawings
Fig. 1 is the structural representation of the state that is provided with of one-driven-several type air-conditioner of the present invention;
Fig. 2 is the structural representation of the refrigerant loop structure of one-driven-several type air-conditioner of the present invention;
Fig. 3 is the formation block diagram of control method of the outdoor fan of one-driven-several type air-conditioner of the present invention;
Fig. 4 is the testing process figure of detection indoor set capacity of the present invention and outdoor temperature;
Fig. 5 is a control method flow chart of the present invention.
Wherein:
100: off-premises station 152: the upper chambers external fan
154: bottom compartment external fan 400: control part
410: press key input section 420: storage part
430: indoor set capacity check portion 440: outdoor temperature test section
450: output temperature test section 460: drive division
The specific embodiment
Below, in conjunction with the accompanying drawings and specific embodiment, air-conditioner of the present invention and control method thereof are described.
Fig. 1 is the structural representation of the state that is provided with of one-driven-several type air-conditioner of the present invention.
As shown in Figure 1, one-driven-several type air-conditioner of the present invention has used 2 distributors, is controlling 6 indoor sets.
Specifically, one-driven-several type air-conditioner comprises: off-premises station 100; Be connected to the 1st distributor 200 and the 2nd distributor 300 on the off-premises station 100; Be arranged on the 1st to the 6th indoor set 220,240,260,320,340,360 in each room.Off-premises station 100 is connected by main pipe arrangement p1 with distributor 200,300, and the 1st distributor 200 is connected by the 1st, the 2nd, the 3rd pipe arrangement P2, P3, P4 with the 1st to the 3rd indoor set 220,240,260.The 2nd distributor is connected by the 4th, the 5th, the 6th pipe arrangement P5, P6, P7 respectively with the 4th to the 6th indoor set 320,340,360.And, comprising outdoor fan on the off-premises station 100, outdoor fan is divided into upper chambers external fan 152 and bottom compartment external fan 154.
The effuser that the refrigerant of pipe arrangement P1 to P7 flows to off-premises station from indoor set from the inflow pipe of off-premises station side direction indoor set side flow and refrigerant forms a pair of, and forms the state of isolating mutually.
After the user imported the operational order of cooling operation, the indoor control part that is provided with on selected or several indoor sets was collected temperature, the current indoor temperature that the user sets, the data of setting air quantity, each indoor set capacity etc.The data of collecting will be sent on the outdoor control part, and outdoor control part is according to the total load of the selected indoor set running of the outdoor temperature data computation of these data and increase.Then, data are delivered on the distribution control part,, start off-premises station 100 based on these data.
The refrigerant of output is assigned in the 1st distributor 200 and the 2nd distributor 300 mobile by the inflow pipe of main pipe arrangement P1 when off-premises station 100 starts.The refrigerant that flows into the 1st distributor 200 and the 2nd distributor 300 decompression and expanding in by the process of the electromagnetic expanding valve that is connected respectively with the indoor heat converter in each room.Then, the inflow pipe along the 1st to the 6th pipe arrangement (P2 to P7) flows to each indoor set.
The refrigerant that flows into each indoor set flows along the 1st to the 6th pipe arrangement (P2 to P7) carry out heat exchange through indoor heat converter the time after.On the 1st distributor 200 and the 2nd distributor 300, collaborate, and flow into off-premises station 100 inside along the effuser of main pipe arrangement P1.
Fig. 2 is the structural representation of the refrigerant loop structure of one-driven-several type air-conditioner of the present invention.
Fig. 2 just expresses off-premises station the 100, the 1st distributor 200 and the 1st to the 3rd indoor set 220,240,260 parts in the one-driven-several type air-conditioner of Fig. 1.
As shown in Figure 2, be respectively arranged with the 1st, the 2nd, the 3rd indoor set 220,240,260 that possesses the 1st, the 2nd, the 3rd indoor heat converter 224,244,264 and the 1st, the 2nd, the 3rd indoor fan 226,246,266 on indoor each chamber.
Specifically, off-premises station 100 is provided with by frequency-changeable compressor 112 that refrigerant is compressed into high-temperature high-pressure state output and the compression unit 110 that constitutes of compressor 114 at the uniform velocity, possesses respectively to be useful on the 1st oil feeder the 122, the 2nd oil feeder 124 that provides oily on the efferent of compressor 112,114.Interflow after the refrigerant of compression unit 110 output is respectively through the 1st oil feeder 122 and the 2nd oil feeder 124, and inflow cross valve 130.
Cross valve 130 is when air-conditioner turns round with the refrigeration mode running or with heating mode, the device of the flow path of the corresponding adjustment inflow or the refrigerant of outflow compressor 112,114, under the refrigeration mode of air-conditioner, refrigerant is according to the solid line direction inflow/outflow among the figure, and under the heating mode of air-conditioner, refrigerant is according to the dotted line direction inflow/outflow among the figure.Thus,, under the adjustment of cross valve 112, when air-conditioner freezes, flow, and when air-conditioner heats, flow into the 1st distributor 200 from the refrigerant of compressor 112,114 output to outdoor heat converter 140.
Outdoor heat converter 140 is connected with the 1st distributor 200 by the inflow pipe 172 of main pipe arrangement P1, when freezing, under the assistance of outdoor fan 150, play the effect of condenser of the refrigerant heat release of the HTHP that makes compressor 112,114 output, and when heating, play the effect of the evaporimeter of the outer heat of absorption chamber.
The 1st distributor 200 portion within it possesses the 1st branched pipe 204 and the 2nd branched pipe 206 is arranged, wherein, the 1st branched pipe 204 is used for the refrigerant that the inflow pipe 172 by main pipe arrangement flows into is assigned to each indoor set, and the refrigerant that the 2nd distributing pipe 206 is used for having passed through each indoor set collaborates together (effect was opposite when air-conditioner heated).
Thus, the inflow pipe 172 of main pipe arrangement P1 branches into the inflow pipe 261 of inflow pipe the 241, the 3rd pipe arrangement P4 of inflow pipe the 221, the 2nd pipe arrangement P3 of the 1st pipe arrangement P2 respectively at the 1st branched pipe 204, the effuser 174 of main pipe arrangement P1 branches into the effuser 262 of effuser the 242, the 3rd pipe arrangement P4 of effuser the 222, the 2nd pipe arrangement P3 of the 1st pipe arrangement P1 respectively on the 2nd branched pipe 206.
On the inflow pipe 221,241,261 of the 1st, the 2nd, the 3rd pipe arrangement, be provided with the 1st, the 2nd, the 3rd electromagnetic expanding valve 212,214,216 respectively, this is to be used for the refrigerant that flows into each indoor set is carried out puffing, is transformed to the device of the refrigerant of low-temp low-pressure thus.Carry out inflow pipe 221,241,261 inflows 1st to 3rd indoor heat converter 224,244,264 inside of the refrigerant of puffing by the 1st to the 3rd pipe arrangement by the 1st to the 3rd electromagnetic expanding valve 212,214,216, and through the refrigerant after 224,244,264 heat exchanges of the 1st to the 3rd indoor heat converter, by effuser 222,242,262 inflows the 2nd branched pipe 206 of the 1st to the 3rd pipe arrangement.
The 2nd branched pipe 206 is connected with cross valve 130, and the refrigerant (with reference to the solid arrow the figure) under the guiding of cross valve 130 from the 2nd branched pipe 206 flows out flows into reservoir 160 inside.Reservoir 160 is connected with the inflow entrance of compressor 112,114, is used to prevent from not have by the 1st, the 2nd, the 3rd indoor heat converter the inside that still enters compressor 112,114 for the refrigerant of liquid condition of gasification at 224,244,264 o'clock.
One-driven-several type air-conditioner of the present invention turns round in the mode that universal joint connects (free joint).So-called universal joint connected mode is meant that in order to make the refrigerant that flows out in the compressor be not to circulate to fixing refrigerant, but needs circulating of refrigerant to any one, with the incorporated composition mode of the efferent of compressor.
Thus, can load as required adjust the frequency and the method for operation of compressor, not only can realize the economize on electricity running, and can utilize 2 small-sized compressors to substitute a large-scale compressor, thereby can save cost.
Enumerated the embodiment of the one-driven-several type air-conditioner that uses 6 indoor sets of 2 distributors control among Fig. 1 and Fig. 2, but the present invention does not limit the quantity of distributor and the value volume and range of product of indoor set (such as, ceiling-type, wall-hanging, console mode etc.).
Below, be described in detail for the control method of outdoor fan.
Fig. 3 is the formation block diagram of control method of the outdoor fan of one-driven-several type air-conditioner of the present invention.
As shown in Figure 3, the control system of outdoor fan of the present invention comprises: the operation push-button 410 that can import data for the starting state of setting outdoor fan in advance; Preserve storage part 420 in advance by the data of operation push-button 410 inputs; Send the control part 400 of control signal to drive division 460 for the startup of control room external fan and/or compression unit 110 etc.; Be used to detect the indoor set capacity check portion 430 of indoor set capacity; Be used to detect the outdoor temperature test section 440 of outdoor temperature; Be used to detect the output temperature test section 450 of the output temperature of the refrigerant that has passed through compression unit 110; According to the control signal priming chamber external fan of control part 400 and/or the drive division 460 of compression unit 110.And, also be connected with the timer 470 that is used to detect start-up time on the control part 400.
Include the sensor that is used to collect data respectively in indoor set capacity check portion 430, indoor temperature test section 440, the output temperature test section 450, and outdoor fan is divided into top fan 152 and bottom fan 154.
According to aforesaid composition, in order to control upper and lower part outdoor fan 152,154, be kept in the storage part 420 in advance by operation push-button 410 input indoor set capacity, outdoor temperature, the output temperature of refrigerant by compression unit and the start-up time of compression unit 110, and with it.When starting indoor set, detect the capacity and the outdoor temperature of the indoor set that starts, be sent to control part 400, by control part 400 data that relatively detect and the data of preserving in advance.Simultaneously, detect the output temperature of the refrigerant by compression unit 100 and the start-up time of compression unit 110, with the output temperature of having preserved and compare judgement start-up time, and send the signal of control room external fan to drive division 460 according to judged result.Drive division 460 is according to control signal priming chamber external fan, promptly, start top fan 152 and bottom fan 154 according to enabling signal, perhaps just start a fan in top fan 152 and the bottom fan 154, or do not start top fan 152 and bottom fan 154.Detection data that control part 400 carries out and the relatively judgement of the data of preservation are in advance carried out when air-conditioner turns round continuously.
Therefore, the refrigerant temperature during according to the indoor set capacity that changes or outdoor temperature and compression unit startup changes, priming chamber external fan, and feedback information, thus can keep stable kind of refrigeration cycle, and can realize continuous kind of refrigeration cycle.Particularly, can come the startup of control room external fan, thus control room external fan more accurately according to the output temperature of refrigerant.
Fig. 4 is the testing process figure of detection indoor set capacity of the present invention and outdoor temperature.
As shown in Figure 4, the process (hereinafter referred to as the initial stage control procedure) that detects the capacity of indoor set and outdoor temperature is that control part 400 at off-premises station 100 carries out.
Specifically, in the control procedure, detect the capacity and the outdoor temperature of indoor set in the early stage, and control the startup of upper and lower part outdoor fan 152,154 according to detected value.And, when process satisfies condition in the early stage, start upper chambers external fan 152 and bottom compartment external fan 154 S115 simultaneously, if do not satisfy condition then carry out the process S120 that detects output temperature.
Promptly comprise, detect the stage S111 of indoor set capacity in the initial stage control procedure.When the indoor set capacity that detects in the stage as S111 has surpassed a reference value, be considered as satisfying the condition of initial stage control procedure.On the contrary, if the detected value of judging as a result during less than a reference value, is carried out the stage of detecting outdoor temperature.
Judge whether S112 on the 1st a reference value of the outdoor temperature that detected in the stage of outdoor temperature detecting, when having surpassed the 1st a reference value, be considered as satisfying the initial stage control procedure.When detected value less than the 1st a reference value, judge then whether outdoor temperature has surpassed the 2nd a reference value S113.When detected temperatures during, be considered as not satisfying condition less than the 2nd a reference value.Here, preferably the 1st a reference value greater than the 2nd a reference value.
The temperature value that is detected is between the 1st a reference value and the 2nd a reference value the time, judges that whether the value that detected is to reduce or increase S114 from the 2nd a reference value from the 1st a reference value.According to the result who judges,, be considered as satisfying condition when the temperature value that detects reduces from the 1st a reference value.The value that detects increases from the 2nd a reference value, is considered as not satisfying condition.In order to carry out the S114 stage, the continuous detection outdoor temperature, and the temperature value that detects will be stored on the storage part 420.
Fig. 5 is the flow chart that the value that detects in the initial stage control procedure according to Fig. 4 and output temperature and compressor operating time are controlled the control method of off-premises station.
As shown in Figure 5, when the user passes through operation push-button 410 input service orders, air-conditioner entry into service S100.After air-conditioner starts, 152 startups of the upper chambers external fan in the outdoor fan are considered as a reference value here.
Specifically, after the air-conditioner entry into service, the temperature that indoor set capacity check portion 430, outdoor temperature test section 440, output temperature test section 450 detect indoor set capacity and outdoor temperature and pass through the refrigerant of compression unit 110 outputs.
At first, after the air-conditioner entry into service, carry out the initial stage control procedure S100 among Fig. 5.The initial stage control procedure is carried out in the process of air-conditioner running at a certain time interval.In the control procedure,, start upper chambers external fan 152 and bottom compartment external fan 154 S115 simultaneously in the early stage if judge S110 when outdoor temperature or indoor set capacity satisfy condition.In contrast, the S110 if judgement outdoor temperature or indoor set capacity do not satisfy condition then carries out the process S120 that detects output temperature.Under the state that upper chambers external fan 152 and bottom compartment external fan 154 start simultaneously, passed through after the official hour, carried out the initial stage control procedure repeatedly.
It is as follows to specify the process that detects output temperature.Judge that whether the output temperature that output temperature test section 450 detects surpasses the 1st a reference value S120, when judging that the temperature that is detected surpasses the 1st a reference value, carries out initial stage control procedure S121.In contrast, judge and carry out the stage S130 of the duration of runs of detecting compressor 110 when the temperature that detects is lower than the 1st a reference value.
At the S130 of the duration of runs of detecting compression unit 110 in the stage, stop upper chambers external fan 152 and bottom compartment external fan 154 when surpassing a reference value the duration of runs of judging compression unit 110.In contrast, when do not surpass a reference value the duration of runs of compression unit 110, start upper chambers external fan 152, bottom compartment external fan 154 is kept halted state S131, carries out initial stage control procedure S110 once more repeatedly.
S140 under the state that upper chambers external fan 152 and bottom compartment external fan 154 all stop, judge that whether output temperature is at the above S150 of the 2nd a reference value, when output temperature when the 2nd a reference value is above, carry out to start the process S131 that upper chambers external fan 152 stops bottom compartment external fan 154.Judge when output temperature does not surpass the 2nd a reference value, carry out initial stage control procedure S151.Among the control procedure S151, judging satisfies condition carries out the S115 stage constantly in the early stage.When not satisfying condition, carry out the S150 stage repeatedly.
Among the control procedure S121, be judged as when satisfying condition in the early stage, carry out the S115 stage repeatedly.On the contrary, if do not satisfy condition, then carry out and judge the whether stage S122 more than the 4th a reference value of output temperature.
Judge when output temperature has surpassed the 4th a reference value whether surpassed a reference value S123 the duration of runs of then judging compression unit 110.In contrast, do not reach the 4th a reference value, get back to the control procedure S110 stage at initial stage once more when being judged as output temperature.
In stage, simultaneously start upper chambers external fan 152 and bottom compartment external fan 154 S124s when having surpassed a reference value the duration of runs of judgement compression unit 110 at S123.In contrast, if judge, get back to initial stage control procedure S110 once more not above a reference value.
In stage, upper chambers external fan 152 and bottom compartment external fan 154 all start at S124, passed through the regular hour after, carry out and to judge that output temperature is whether above the stage S125 of the 3rd a reference value.If be judged as output temperature when having surpassed the 3rd a reference value, carry out initial stage control procedure S126.When control procedure S126 satisfied condition in the stage in the early stage, carry out the S115 stage, if do not satisfy condition then carry out the S125 stage repeatedly.
Here, greater than the 3rd a reference value, and the 3rd a reference value is greater than the 2nd a reference value as the 4th a reference value of the fiducial value of output temperature, and the 2nd a reference value is greater than the 1st a reference value.A reference value is not limited to specific value, can be according to suitable the regulating of the capacity of air-conditioner.
And greater than the 2nd a reference value, this a reference value also is not restricted to specific value as the 1st a reference value of outdoor temperature benchmark.
As mentioned above, these controlling elements of output temperature on the basis of indoor set capacity, outdoor temperature, have been increased by the refrigerant of compression unit, thus can be according to the startup of the situation control room external fan that changes, particularly fed back control procedure according to output temperature, under low capacity and low-temperature condition, prevent the icing phenomenon of indoor set and compressor, realized stable cooling operation.

Claims (10)

1. an air-conditioner is characterized in that, includes: plural at least outdoor fan (152,154); The drive division (460) that is used for the priming chamber external fan; Be used to detect the capacity check portion (430) of the capacity of indoor set; Be used to detect the outdoor temperature test section (440) of outdoor temperature; Be used to detect the output temperature test section (450) of the output temperature of the refrigerant that compressor discharges; Be used to preserve the storage part (420) of a reference value of the capacity of indoor set and outdoor temperature and output temperature; Detected value and a reference value that capacity check portion and temperature detecting part are detected compare judgement, and according to control part (400) formation of the startup of judged result control room external fan.
2. air-conditioner according to claim 1, it is characterized in that, control part (400) is according to the relatively judgement of detected value and a reference value, and control is carried out the actuating section outdoor fan or started whole outdoor fans or stop a kind of control of outdoor fan in starting.
3. air-conditioner according to claim 1 is characterized in that, also comprises: the compressor (110) that refrigerant is compressed into high-temperature high-pressure state; Be used to detect compressor (110) timer (470) of the duration of runs.
4. the control method of an air-conditioner is characterized in that, comprising: (a) behind the power connection, start the stage of a certain fan in upper chambers external fan or the bottom compartment external fan; (b) in the outdoor fan start-up course, detect the capacity and the outdoor temperature of indoor set, judge whether the stage of full condition; (c), carry out (b) stage once more when starting upper chambers external fan and bottom compartment external fan, if do not satisfy condition then detects stage of the temperature of the refrigerant that passes through compressor in (b) stage when satisfying condition; (d) according to stage of the temperature of refrigerant control priming chamber external fan.
5. the control method of air-conditioner according to claim 4 is characterized in that, just starts the upper chambers external fan in the stage at (a).
6. the control method of air-conditioner according to claim 4, it is characterized in that, at (d) in the stage, when output temperature does not reach the 1st a reference value, carry out the stage of detecting compressor operating time, and when compressor operating time does not surpass a reference value, carry out (b) stage once more, when compressor operating time had surpassed a reference value, execution stopped to start upper chambers external fan and bottom compartment external fan, and detected the stage of the output temperature of the refrigerant that passes through compressor.
7. the control method of air-conditioner according to claim 6, it is characterized in that, in the stage of detecting output temperature, when the output temperature that detects has surpassed the 2nd a reference value, start the desk fan in upper chambers external fan or the bottom compartment external fan, and carry out (b) stage once more, and when the output temperature that detects does not reach the 2nd a reference value, detect indoor set capacity and outdoor temperature, judge whether to satisfy condition, when satisfying condition, start upper chambers external fan and bottom compartment external fan, when not satisfying condition, continue to judge whether output temperature has surpassed the 2nd a reference value.
8. the control method of air-conditioner according to claim 4, it is characterized in that, in stage, when output temperature surpasses the 1st a reference value, detect indoor set capacity and outdoor temperature at (d), judge whether to satisfy condition, when satisfying condition, start upper chambers external fan and bottom compartment external fan simultaneously, and carry out (b) stage once more, when not satisfying condition, carry out the stage of detecting output temperature and compressor operating time once more.
9. the control method of air-conditioner according to claim 8, it is characterized in that, when the output temperature that is detected does not reach the 4th a reference value, carry out (b) stage once more, and surpassed the 4th a reference value at output temperature, and the duration of runs of compressor is not when surpassing a reference value, carry out (b) stage once more, judge that output temperature has surpassed the 4th a reference value, and the duration of runs of compressor is when having surpassed a reference value, start upper chambers external fan and bottom compartment external fan simultaneously, detect the stage of output temperature once more.
10. the control method of air-conditioner according to claim 9, it is characterized in that, in the stage of detecting output temperature, when output temperature has surpassed the 3rd a reference value, detect indoor set capacity and outdoor temperature, judge whether to satisfy condition, when satisfying condition, carry out (b) stage once more, and when not satisfying condition, continue to judge whether output temperature has surpassed the 3rd a reference value, when the output temperature that detects during, start the desk fan in upper chambers external fan or the bottom compartment external fan, and carry out (b) stage once more less than the 3rd a reference value.
CN 200610014097 2006-06-06 2006-06-06 Air conditioner and control method thereof CN101086365A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154627A (en) * 2013-05-14 2014-11-19 珠海格力电器股份有限公司 Control method of outdoor fan motors of air conditioner
CN105222640A (en) * 2015-10-30 2016-01-06 广东美的暖通设备有限公司 The control method that the upper and lower blower fan of a kind of heat exchanger confirms automatically and control system
CN109084429A (en) * 2018-08-17 2018-12-25 Tcl空调器(中山)有限公司 Control method, air conditioner and the readable storage medium storing program for executing of air conditioner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154627A (en) * 2013-05-14 2014-11-19 珠海格力电器股份有限公司 Control method of outdoor fan motors of air conditioner
CN104154627B (en) * 2013-05-14 2017-03-22 珠海格力电器股份有限公司 Control method of outdoor fan motors of air conditioner
CN105222640A (en) * 2015-10-30 2016-01-06 广东美的暖通设备有限公司 The control method that the upper and lower blower fan of a kind of heat exchanger confirms automatically and control system
CN105222640B (en) * 2015-10-30 2017-06-13 广东美的暖通设备有限公司 Control method and control system that a kind of upper and lower blower fan of heat exchanger is automatically confirmed that
CN109084429A (en) * 2018-08-17 2018-12-25 Tcl空调器(中山)有限公司 Control method, air conditioner and the readable storage medium storing program for executing of air conditioner

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