CN1888663A - Controlling method for air conditioner - Google Patents

Controlling method for air conditioner Download PDF

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Publication number
CN1888663A
CN1888663A CN 200510014041 CN200510014041A CN1888663A CN 1888663 A CN1888663 A CN 1888663A CN 200510014041 CN200510014041 CN 200510014041 CN 200510014041 A CN200510014041 A CN 200510014041A CN 1888663 A CN1888663 A CN 1888663A
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China
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compressor
temperature
air conditioner
indoor
control method
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CN 200510014041
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Chinese (zh)
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黄盛俊
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CN 200510014041 priority Critical patent/CN1888663A/en
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Abstract

This invention discloses a kind of air conditioner controlling method. It includes: first time operation step for judging indoor refrigerating load; step for selectively carrying out starting-stopping operation or changeable capacity operation according to the first step judged refrigerating load.

Description

The control method of air conditioner
Technical field
The present invention relates to air conditioner, especially relate to a kind of control method that possesses the air conditioner of inverter compressor.
Background technology
In general, air conditioner is by the heat exchange between the air of cold-producing medium and indoor or outdoors, the device of cooling or heating room air.Cold-producing medium is successively by compressor-condenser-expansion valve-evaporimeter, along with the thermodynamic cycle process changes, particularly utilize the heat transmission that produces in the state change process of cold-producing medium, cooling or heating room air, wherein, the state variation of cold-producing medium is to take place in evaporimeter and condenser.
Compressor is in order to carry out the externally device of energize of thermodynamic cycle.Compressor according to the mode of compressed fluid, is divided into rotary compressor, reciprocating movement type compressor, screw compressor etc. as the machinery of fluids such as compressed refrigerant, gas.
As shown in Figure 1, casing 10 inside of rotary compressor 3 are provided with electronic 5 and compression unit 6; And make electronic 5 and compression unit 6 be combined in the two ends of rotating shaft 13 separately, electronic 5 revolving force is passed to compression unit 6.
More detailed theory, electronic 5. comprises stator 11 and rotor 12, promptly is made of stator 11 that is installed on casing 10 inner peripheral surfaces and the rotatable rotor 12 that is arranged on the stator inboard.Rotor 12 is with rotating shaft 13 combinations, and when providing power supply to electronic 5, under the effect that is formed at the rotation apparatus between stator 11 and the rotor 12, rotor 12 and rotating shaft 13 rotate together.
Compression unit 6 comprises cylinder 14 and is connected in the rolling piston 17 of rotating shaft that rolling piston 17 is eccentric in conjunction with rotation afterwards with rotating shaft 13.
As shown in Figure 2, the inboard of rotary compressor cylinder 14 formed the compression stroke of drum type in the past, and a lateral deviation heart of rolling piston 17 is connected in rotating shaft 13, and the opposite side of rolling piston 17 is with the inner peripheral surface contact of cylinder 14.And inside one side of cylinder 14 also has baffle plate 18, and baffle plate 18 is contacted with the outer peripheral face of rolling piston 7, can advance or retreat along radial direction, and the inner space of cylinder is divided into suction chamber S and discharge chambe C.Baffle plate 18 slides along the baffle plate resettlement section 18a that is formed at cylinder 14 1 sides, and its rear is supported by spring 18b elasticity.
One side of baffle plate 18 has formed the suction inlet 14a that cold-producing medium sucks into, and opposite side has formed the delivery outlet 14b of compressed cold-producing medium output.Suction inlet 14a connects with suction calandria 21, and delivery outlet 14b connects with output port 15a.The epimere of output port 15a also has the output valve 19 that opens and closes to upside elasticity.
Below, describe the start-up course of above-mentioned rotary compressor in detail:
At first, apply power supply to electronic 5, rotating shaft 13 is rotation in a clockwise direction just, and the rotary piston 17 that is connected in rotating shaft 13 is in the eccentric rotation in the inner space of cylinder 14.Among the suction chamber S that baffle plate 18 is divided, flow into cold-producing medium by suction inlet 14a; Among the discharge chambe C that baffle plate 18 is divided, after being compressed, exports by cold-producing medium by delivery outlet 14b, and above-mentioned repeatedly process.The cold-producing medium of output moves to upside by output port 15a earlier, moves to the output comb 22 on casing 10 tops once more.Afterwards, compressed cold-producing medium guides to condenser by output comb 22.Described compressor is adjusted indoor air according to indoor temperature running or the mode that stops compressor.
As shown in Figure 3, the control method of rotary compressor in the past: in order to cool off room air, start after the air conditioner, it is following and reach set temperature value that indoor actual temperature value (Tin) drops to desired temperature value (Td), and compressor is stopped startup.And because compressor stops to start, it is above that indoor temperature rises to set temperature value once more, and compressor is startup once more just, the air in the cooling chamber.The aforesaid a series of process that circulates, air conditioner is maintained proper temperature to indoor temperature.
But have following problem in the air conditioner in the past: stop after the startup of compressor, in the time of need starting once more, therefore the inertia of the rotating shaft that produces in the time of must overcoming compressor start in the early stage consume many electric power.And, carry out repeatedly compressor start or stop process the time, motor and its rotating shaft damage easily.
Summary of the invention
Technical problem to be solved by this invention is, a kind of air conditioner that possesses inverter compressor is provided, and makes and save the electric power that consumes in operation process, the stable startup.
For the technical solution problem, the technical solution used in the present invention is: a kind of control method that possesses the air conditioner of inverter compressor is provided, is made of following two steps: the first running step of judging indoor cooling load; Optionally carry out the step of starting-stopping operation or variable capacity running, that is, carry out the starting-stopping operation of starting-stopping operation process or the step of the variable capacity running that the execution variable capacity turns round according to the cooling load that first running step is judged.
The invention has the beneficial effects as follows:
The first, according to indoor cooling or heating load, make compressor open-close running or the variable-displacement mode turns round, in conjunction with indoor air environment control compressor, saved power consumption.
The second, improved the running rate of compressor according to the mode of indoor temperature change compressor capacity.That is, under cooling or the less situation of heating load, compressor only compresses low capacity, therefore, has reduced indoor variations in temperature, has prolonged the dwell time of compressor.Can reduce the electric power of carrying out frequent opening-consume when closing closed procedure, prevent the damage of compressor.
The 3rd, do not need complicated line unit, and simple operations optionally opens and closes tube channel at the converting member of comb, comb is connected in the compressor; And, by said process, the capacity of the change refrigerant compressed that is more prone to, the more stable realization compressor and the control method of air conditioner.
Description of drawings
Fig. 1 is the structure side profile of rotary compressor in the past;
Fig. 2 is the section of structure of rotary compressor cylinder in the past;
Fig. 3 is the control method of rotary compressor in the past;
Fig. 4 is the inverter compressor assembled construction figure of air conditioner of the present invention;
Fig. 5 a and Fig. 5 b are the channel valve of inverter compressor of the present invention and the section of structure of cylinder;
Fig. 6 a and Fig. 6 b are in the inverter compressor of the present invention, with the structure chart of three-dimensional valve conversion tube channel syndeton;
Control method flow chart when Fig. 7 is air conditioner refrigeration;
Fig. 8 is the control procedure flow chart that the A step among Fig. 7 is carried out;
Fig. 9 is when refrigeration, according to the running status figure of the inverter compressor of indoor temperature conversion;
Control method flow chart when the air-conditioning mechanism that Figure 10 is is warm;
Figure 11 is the control procedure flow chart that the B step among Figure 10 is carried out;
Figure 12 is system when warm, according to the running status figure of the inverter compressor of indoor temperature conversion.
Among the figure:
3: compressor 5: electronic portion
6: compression unit 17: rolling piston
18: baffle plate 21: suction calandria
22: output comb 31: tube channel
41: 33: the second combs of air accumulator
124: channel valve 114: cylinder
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Shown in Fig. 4 and Fig. 5 b, casing 10 inside of the inverter compressor 3 of air conditioner of the present invention comprise following formation: electronic 5, it is made up of rotor 12 and stator 11; Compression unit 6, it is arranged on the downside of electronic portion.Compression unit 6 also comprises following formation: cylinder 14, and its inside has formed the drum type compression stroke; Rolling piston 17, its off-centre is arranged at compression stroke, and can rotate.
Rolling piston 17 off-centre are connected in the rotating shaft 13 that is connected rotor 12, and when providing power supply to electronic 5, under the effect that is formed at the rotation apparatus between stator 11 and the rotor 12, rotor 12 and rotating shaft 13 rotate together.At this moment, be connected in the also rotation together of rolling piston 17 of rotating shaft 13 bottoms.And rotor 12 is that the one lateral deviation is felt at ease and is loaded on cylinder 114 inside, with the inner peripheral surface contact of cylinder 114.
Inside one side of cylinder 114 also has baffle plate 18, and this baffle plate 18 is contacted with the outer peripheral face of rolling piston 17, can advance or retreat, and the inner space of cylinder is divided into suction chamber S and discharge chambe C.Baffle plate 18 slides along the baffle plate resettlement section 18a that is formed at cylinder 14 1 sides, and its rear is supported by spring 18b elasticity.
One side of baffle plate 18 has formed the suction inlet 14a that cold-producing medium sucks into, and opposite side has formed the delivery outlet 14b of compressed cold-producing medium output.Wherein, suction inlet 14a connects with suction calandria 21, and delivery outlet 14b connects with output port 15a.The epimere of output port 15a also has the output valve 19 that opens and closes to upside elasticity.
As shown in Figure 4, flow into the cold-producing medium of low pressure to compressor from first heat exchanger 51 by suction calandria 21; Export the cold-producing medium of high pressure to second heat exchanger 53 from compressor by output comb 22.And, flow into the inside of first heat exchanger 51 from the cold-producing medium of second heat exchanger 53 output by expansion valve 52, like this, the cold-producing medium that passes through said apparatus successively changes its state along with thermodynamic cycle.
Following first heat exchanger 51 of the deferent segment connection of compressor is to use as condenser, and second heat exchanger 53 that is connected in the suction casing of compressor is to use as evaporimeter.At this moment, in the time of the cooling room air, evaporimeter answers the position in indoor, and on the contrary, in the time of the heating room air, condenser answers the position in indoor.For this reason, air conditioner can be made of the heat pump assembly in optionally cooling or the heating clamber, and this heat pump assembly optionally is connected in first heat exchanger or second heat exchanger one at the deferent segment of the following compressor of effect of four-way valve conversion equipment.
Being separated by with the part of baffle plate 18 positions is formed with channel slot 31a in the position of certain angle, and tube channel 31 is connected in channel slot.Under the effect of channel valve 124, the inner space of tube channel 31 and cylinder 114 optionally is communicated with.
Describe the volume change process of cold-producing medium below in detail, that is, from compressor assembling body, be drawn into the part of the cold-producing medium of cylinder 114 inside, optionally flow into compressor suction 14a once more by tube channel 31 with following formation.
At first, illustrate that the process of cold-producing medium of compression all told is as follows:
Shown in Fig. 5 a, the part of drawing oblique line in the inside of cylinder 114 is the capacity that flow into the cold-producing medium of cylinder 114 at first.Suppose that rolling piston 17 rotates in a clockwise direction, owing to formed the vacuum pressure among the suction chamber S, cold-producing medium is drawn into inside by suction inlet 14a; Simultaneously, among the discharge chambe C, the cold-producing medium that has been inhaled into is compressed between rolling piston 17 and cylinder 114 inwalls.
Shown in Fig. 5 b, when tube channel 31 was in blocking, the cold-producing medium that initial suction is come in was compressed into the capacity of right side discharge chambe C size.The above cold-producing medium of boil down to certain pressure is exported by delivery outlet 14b by this way.
The process of compressing the low capacity cold-producing medium in the mode that changes capacity is as follows:
When tube channel 31 was communicated with cylinder interior discharge chambe C, rolling piston 17 state from Fig. 5 a rotated in the time of state among Fig. 5 b, and cold-producing medium flows out by tube channel 31 with incompressible state.Afterwards, rolling piston 17 is further rotated, with channel slot 31a contact time, discharge chambe C just with tube channel 31a together with, like this, cold-producing medium just begins compression.In the initial cold-producing medium that sucks, except the cold-producing medium that flows out by tube channel 31a, actual compression be the cold-producing medium of remaining low capacity.In this case, has following advantage: because reduce, compare when following the cold-producing medium that compresses all told, reduced power consumption from the compressed refrigerant charge of compressor output.
As mentioned above, since optionally communication passage pipe 31 and cylinder 114 internal compression spaces, the capacity of compressed cold-producing medium in the adjustable compressor.For this reason, the tie point of tube channel 31 and cylinder 114 inner spaces is provided with channel valve 124, is used for optionally opening and closing channel slot 31a.
Shown in Fig. 5 a and Fig. 5 b, channel valve 124 is to be made of the body 124b that open and close valve 124a and guiding open and close valve 124a move.Wherein, open and close valve 124a is for closing passage groove 31a optionally, and preferably the shape with flat board or ball forms.And open and close valve 124a is according to moving under the action of pressure between cylinder and the tube channel, with optionally closing passage groove 51a and optionally communication passage pipe 31 and cylinder 114 inside.The rear of open and close valve 124a is supported that by spring 124c spring 124c provides restoring force with the direction of locking for channel slot 31a.
With open and close valve 124a is benchmark, and the pressure of cylinder is during greater than tube channel pressure, and channel valve 31a is just open; On the contrary, be benchmark with open and close valve 124a, the pressure of cylinder is during less than tube channel pressure, and channel valve 31a just closes.
Below, describe the process that the pressure of effectively regulating open and close valve 124a both sides optionally opens and closes channel valve 124 in detail:
As shown in Figure 4, passage comb 31 is connected in first comb 33 and second comb, 32, the first combs 33 follow the output comb 22 of compressor to connect, and second comb 32 connects with the suction calandria 21 of compressor.Passage comb 31 optionally is communicated with first comb 33 or second comb 32 according to the operation of converting member.Converting member is made of the first valve 33a that is arranged on first comb 33 and second comb 32 and the second valve 32a, and by valve 33a, flowing through the cold-producing medium of each comb 32,33 optionally cut off in the operation of 32a.For this reason, valve 33a, 32a should use the bidirectional electromagnetic valve of electric control.Certainly, when first comb 33 and second comb 32 optionally are communicated with tube channel 31, except two way valve, also can use three-dimensional valve and four-way valve.
In the suction calandria 21, also have air accumulator 41, air accumulator 41 the cold-producing medium that is sucked into compressor 3 be divided into the gas shape and liquid after, only gasiform cold-producing medium is flowed into compressor.By this process, can prevent that liquid cold-producing medium from flowing into the inside of compressor, damage compressor.
Shown in Fig. 6 a and Fig. 6 b, in the inverter compressor of the present invention, with three-dimensional valve conversion tube channel syndeton.After channel valve 124 lockings, the process of compressor compresses all told cold-producing medium is as follows; At first, the first valve 33a is by locking, and the second valve 32a is opened, and flows into the high-pressure refrigerant of compressor deferent segment to channel valve 31 by first comb 33.At this moment, shown in Fig. 5 a or Fig. 5 b, increase, under the action of pressure of open and close valve 124a with regard to the both sides, front and back, move to the direction of locking channel slot 31a in tube channel one lateral pressure of the open and close valve 124a of channel valve 124 inside.Therefore, channel valve 124 just is in the state of locking, and by this process, in the aforesaid compression process, cold-producing medium does not flow out compressible all told by tube channel 31.
After 124 openings of Fig. 6 a detailed description channel valve, the process of the part of refrigerant in the compression compressors portion body capacity is as follows: at first, the first valve 33a is by opening, the second valve 32a is during by locking, and the suction calandria that channel valve 31 low pressure refrigerant via second comb 32 with its internal flow connects.At this moment, the pressure height in the pressure ratio tube channel 31 in the cylinder 114.With reference to Fig. 5 a or Fig. 5 b as can be known, the pressure of cylinder one side of open and close valve 124a is higher, that is, higher at the pressure of cylinder one side of the open and close valve 124a of channel valve 124 inside, open and close valve 124a moves to open direction to channel slot 31a under the action of pressure of both sides.
When channel valve 124a was in open state, the cold-producing medium in the cylinder 114 by tube channel 31 output parts, like this, only compressed a certain amount of cold-producing medium in compressed process.Flow into the inside of inhaling valve 21 earlier by first comb 32 by the cold-producing medium of tube channel 31 output, be supplied to the inside of cylinder 114 once more.
As mentioned above, inverter compressor of the present invention can optionally be carried out the compression process of the low capacity cold-producing medium of the compression process of all told or an all told part.As mentioned above, the control method with air conditioner of variable displacement compressor is according to indoor variations in temperature, and the startup-stopped process of control compressor 3 is promptly opened-closed procedure; And the switching of controllable channel valve 124.
Control method when below use of the present invention being possessed inverter compressor cooling room air describes:
As shown in Figure 7, the control method of the air conditioner among the present invention comprises first running step and optionally carries out the step of starting-stopping operation process or variable capacity running according to the cooling load that first running step is judged.Wherein, inverter compressor is rotary compressor preferably, and rotary compressor changes the capacity of compressed cold-producing medium by the mode that optionally opens and closes in the tube channel of cylinder.
At first, open air conditioner (ON) S1, determine afterwards whether air conditioner needs first running, that is, judge the first running SA of compressor cooling load.
As shown in Figure 8, in the time of need turning round the judgement cooling load by the initial stage, execution initial stage running step.At first, utilize temperature sensor, measure indoor temperature (Tin) at set intervals, be passed to along with the temperature of measuring in the microcomputer that has started of control air conditioner in air conditioner one side.At this moment, microcomputer is just along with the indoor temperature that detects (Tin), optionally opening compressor.
The initial stage operating procedure is to comprise that two following steps carry out repeatedly: promptly, when indoor temperature (Tin) reaches the temperature (Td+a ℃) that desired temperature value (Td) adds setting value (a) or surpasses this temperature (Td+a ℃), start the step S6 of compressor in jumbo mode; When indoor temperature (Tin) reaches desired temperature value (Td) and cuts set temperature value (Td-a ℃) or end and reach this temperature (Td+a ℃), stop the step S7 of compressor.Wherein, the startup of compressor and stopped process repeatedly more than at least 2 times.
Stop more than the minimum lasting setting-up time of step (T1) of compressor.Like this, can prevent the frequent phenomenon of damaging compressor when open-closing of carrying out, and, the cold-producing medium of exporting in the indoor side heat exchanger of air conditioner of compressor is installed is diffused into and needs the regular hour when indoor, set setting-up time (T1) in order to consider cold-producing medium to diffuse to the indoor time.
The running rate that the cooling load utilization is calculated is judged, running rate is that the startup of compressor and stopped process are when carrying out to set point number repeatedly (total run time of the total run time/air conditioner of compressor), calculate by calculating, and, running rate of relatively calculating and setting value M.Wherein, the total run time of air conditioner is when pointing to air conditioner power supply being provided, the start-up time of compressor and dwell time sum.
The compressor dwell time reaches hour, and the running rate value is bigger, and this is owing to indoor cooling load produces especially greatly.On the contrary, indoor cooling load is low, and when perhaps high frequent started repeatedly and stops, the running rate value was less.Therefore, when the running rate value is low especially, by the frequent starting of compressor and stop, increasing power consumption, increased the damage probability of compressor, therefore, in requisition for the method for operation of change compressor, corresponding low cooling load.
Running rate reaches more than the setting value M or surpasses when setting value M, carries out out-close running in the mode of above-mentioned initial stage running step; When the running rate end reaches setting value M or is lower than setting value M, carry out the variable capacity running.For this reason, when indoor cooling load is bigger, carries out and open-close running, make air conditioner in the unit interval, carry out more heat exchanging process; When indoor cooling load is lower than below the certain level, carry out the variable capacity running, make air conditioner carry out suitable heat exchange.That is, the amount of the cold-producing medium of output is many more after being compressed in the compressor, and the more heats of easy more absorption can satisfy indoor big cooling load.On the contrary, indoor cooling load reduces the amount of the cold-producing medium of output after being compressed more after a little while, like this, needn't stop the cooling load that compressor also can satisfy suitable level.
Below, describe the running of carrying out when running rate reaches more than the setting value M of open-closing in detail:
As shown in Figure 8, open-closing running and comprising that two following steps carry out repeatedly: indoor temperature (Tin) reaches temperature (Td+a ℃) that desired temperature value (Td) adds setting value (a) or during above this temperature (Td+a ℃), starts the step S6 of compressor in jumbo mode; When indoor temperature (Tin) reaches desired temperature value (Td) and cuts set temperature value (Td-a ℃) or end and reach this temperature (Td+a ℃), stop the step S7 of compressor.Wherein, the startup of compressor and stopped process repeatedly more than at least 2 times.
Stop more than the minimum lasting setting-up time of step (T1) of compressor.Can prevent the frequent damage compressor when open-closing of carrying out, and, the cold-producing medium of exporting in the indoor side heat exchanger of air conditioner of compressor is installed is diffused into and needs the regular hour when indoor, consider that cold-producing medium diffuses to the indoor time and sets setting-up time (T1).
Below, when the detailed description running rate reaches more than the setting value, the variable capacity operation process of execution:
As shown in Figure 9, in order to cool off room air, start after the air conditioner, indoor actual temperature value (Tin) drops to below the desired temperature value (Td), and inverter compressor is just carried out the process of the low capacity cold-producing medium of a part in the compression all told.Afterwards, the minimizing speed of indoor temperature is slack-off, and like this, it is long that indoor temperature (Tin) reaches time of the temperature (Td-a ℃) that desired temperature (Td) cuts setting value (a).Therefore, can prolong the cycle of open-closing of compressor, outspent electric power when saving compressor start.Carry out variable capacity when running, carry out process as described below: along with the variation of indoor temperature (Tin), the closed procedure of opening-closes of controlled system compressor reaches switching process at the channel valve of rotary compressor inside.
At first, when indoor temperature (Tin) adds the temperature (Td+a ℃) of setting value (a) above desired temperature value (Td), the jumbo cold-producing medium of control compressor compresses.Shown in Fig. 6 a, according to the operation of conversion equipment, at the channel valve 124 of rotary compressor cylinder 114 1 sides by locking.Like this, because locking channel valve 124, compressor 3 compressible all tolds, that is, and output after jumbo cold-producing medium is compressed.
When indoor temperature (Tin) drops to desired temperature value (Td), control compressor 3 compression low capacity cold-producing mediums.Shown in Fig. 6 b, at the channel valve 124 of rotary compressor cylinder 3 one sides by locking.Because channel valve 124 is by locking, a part in all told that compressor 3 can compress promptly, is exported after the low capacity cold-producing medium is compressed.
The first valve 33a and the second valve 32a are in order to open and close channel valve 124, use as converting member, and the control procedure of the first valve 33a and the second valve 32a is identical with the declarative procedure that Fig. 6 b carries out with reference to Fig. 4.
When indoor temperature (Tin) reached the temperature (Td-a ℃) that desired temperature value (Td) cuts setting value (a), compressor stopped.At this moment, stop more than the minimum lasting setting-up time of step (T1) of compressor.
Below, when describing the heating room air in detail, the control method of air conditioner:
As Figure 10 and shown in Figure 11, heating is during room air, catches up with to state that to be used for Cooling Control identical, optionally carries out following two steps: judge the indoor first running step that heats load; The step of the starting-stopping operation that heats load execution starting-stopping operation process that first running step is judged or the variable capacity running of execution variable capacity running.
Heating load, to utilize the judgement of calculating of running rate, running rate be the startup of compressor and stopped process when carrying out to set point number repeatedly (total run time of the total run time/air conditioner of compressor), calculates by calculating.
The compressor dwell time reaches hour, and the running rate value is bigger, and this is owing to the indoor load that heats produces especially greatly.On the contrary, indoor heating loaded low, and when perhaps high frequent started repeatedly and stops, the running rate value was less.Therefore, when the running rate value is low especially, by the frequent starting of compressor and stop, increasing power consumption, increased the damage probability of compressor, therefore, in requisition for the method for operation of change compressor, the corresponding low load that heats.
Running rate reaches more than the setting value M or surpasses when setting value M, carries out out-close running in the mode of above-mentioned initial stage running step; When the running rate end reaches setting value M or is lower than setting value M, carry out the variable capacity running.And, during the variable capacity running, optionally change the capacity of the cold-producing medium of opening-close closed procedure and compressor compresses of compressor.
Running step and when surpassing setting value by the running step running rate of calculating promptly, heats load performed open-closing in operation process when big, according to open-closing of indoor temperature control compressor.
As shown in figure 11, on-off closes running and comprises two following steps: when indoor temperature (Tin) end reaches the temperature (Td-a ℃) that desired temperature value (Td) cuts setting value (a) or is lower than this temperature (Td-a ℃), start the step S15 of compressor in jumbo mode; When indoor temperature (Tin) reaches the temperature (Td+a ℃) that desired temperature value (Td) adds setting value (a) or surpasses this temperature (Td+a ℃), stop the step S16 of compressor.At this moment, identical during also with the cooling indoor temperature, consider that the wet of exporting in the indoor set of air conditioner diffuses to the indoor time, stops more than the minimum lasting setting-up time of step (T2) of compressor.
As shown in figure 10, the volume-variable step comprises three following steps: when indoor temperature (Tin) end reaches the temperature (Td-a ℃) that desired temperature value (Td) cuts setting value (a), and the step S12 of the big volume of refrigerant of control compressor compresses; When indoor temperature (Tin) rises to desired temperature value (Td), the step S13 of control compressor compresses low capacity cold-producing medium; When indoor temperature (Tin) adds the temperature (Td+a ℃) of setting value (a) above desired temperature value (Td), the step S14 that compressor stops.At this moment, identical during also with the cooling indoor temperature, stop more than the minimum lasting setting-up time of step of compressor.
As shown in figure 12, in order to heat room air, start after the air conditioner, indoor actual temperature value (Tin) rises to desired temperature value (Td), and capacity variable type compressor is just carried out the process of the low capacity cold-producing medium of a part in the compression all told.The minimizing speed of indoor temperature is slack-off, and it is long that indoor temperature (Tin) reaches time of the temperature (Td+a ℃) that desired temperature (Td) adds setting value (a).Therefore, can prolong the on-off closed cycle phase of compressor, outspent electric power when saving compressor start.
More detailed theory, in variable capacity when running,, along with the variation of indoor temperature, the closed procedure of opening-closes of controlled system compressor reaches switching process at the channel valve of rotary compressor inside:
At first, indoor temperature (Tin) end reaches desired temperature value (T d) when cutting the temperature (Td-a ℃) of setting value (a) or being lower than this temperature (Td-a ℃), the jumbo cold-producing medium of control compressor compresses.For this reason, shown in Fig. 6 a, according to the operation of conversion equipment, at the channel valve 124 of rotary compressor cylinder 114 1 sides by locking.Like this, because locking channel valve 124, compressor 3 compressible all tolds, that is, and output after jumbo cold-producing medium is compressed.
Along with the startup of air conditioner, carry out the startup of the air conditioner of action, the indoor beginning warmed, when indoor temperature (Tin) rises to desired temperature value (Td), control compressor compresses low capacity cold-producing medium.Shown in Fig. 6 b, opened at the channel valve 124 of rotary compressor cylinder 114 1 sides.Because channel valve 124 is a part of in all capacity that compressor 3 can compress by open, that is, and output after the low capacity cold-producing medium is compressed.
The first valve 33a and the second valve 32a use as converting member in order to open and close channel valve 124, and the control procedure of the first valve 33a and the second valve 32a is identical with the declarative procedure that Fig. 6 b is carried out with reference to Fig. 4.
Have, when indoor temperature (Tin) reached the temperature (Td+a ℃) that desired temperature value (Td) adds setting value (a), compressor stopped again.At this moment, stop more than the minimum lasting setting-up time of step (T2) of compressor.
Scope of the present invention is not limited in embodiment as above, can carry out after the proper transformation within the scope of the claims.

Claims (17)

1, a kind of control method of air conditioner, the compressor that is used to cool off room air is an inverter compressor, control method comprises two steps: the first running step of judging indoor cooling load; According to the cooling load that first running step is judged, carry out the starting-stopping operation of starting-stopping operation process or carry out the variable capacity running step that variable capacity turns round.
2, the control method of air conditioner according to claim 1 is characterized in that described initial stage running step comprises according to the difference between design temperature and the indoor temperature, calculates the step of the running rate of judging cooling load when compressor open-cuts out.
3, the control method of air conditioner according to claim 1 is characterized in that described starting-stopping operation process comprises two following steps, when indoor temperature adds the temperature of setting value above the desired temperature value, starts the step of compressor; When indoor temperature is lower than the desired temperature value and cuts the temperature of setting value, stop the step of compressor.
4, the control method of air conditioner according to claim 3 is characterized in that the described step that stops compressor should be more than the minimum lasting setting-up time.
5, the control method of air conditioner according to claim 1 is characterized in that described volume-variable step comprises three following steps, when indoor temperature adds the temperature of setting value above the desired temperature value, and the step of the big volume of refrigerant of control compressor compresses; When indoor temperature drops to the desired temperature value, the step of control compressor compresses low capacity cold-producing medium; When indoor temperature is lower than the desired temperature value and cuts the temperature of setting value, stop the step of compressor.
6, the control method of air conditioner according to claim 5 is characterized in that the described step that stops compressor should be more than the minimum lasting setting-up time.
7, a kind of control method of air conditioner, the compressor that is used to heat room air is an inverter compressor, control method comprises two steps: the first running step of judging indoor heating load; According to the heating load that first running step is judged, carry out the starting-stopping operation of starting-stopping operation process or the step of the variable capacity running that the execution variable capacity turns round.
8, the control method of air conditioner according to claim 7 is characterized in that described initial stage running step comprises according to the difference between design temperature and the indoor temperature, calculates the step of the running rate of judging cooling load when compressor open-cuts out.
9, the control method of air conditioner according to claim 7 is characterized in that described starting-stopping operation process comprises two following steps: when indoor temperature does not reach the desired temperature value and deducts the temperature of setting value, start the step of compressor; When indoor temperature adds the temperature of setting value above the desired temperature value, stop the step of compressor.
10, the control method of air conditioner according to claim 9 is characterized in that the described step that stops compressor should be more than the minimum lasting setting-up time.
11, the control method of air conditioner according to claim 7, it is characterized in that described volume-variable step comprises three following steps: when the indoor temperature end reaches the desired temperature value and cuts set-point temperature, the step of the big volume of refrigerant of control compressor compresses; When indoor temperature drops to the desired temperature value, the step of control compressor compresses low capacity cold-producing medium; When indoor temperature adds set-point temperature above the desired temperature value, stop the step of compressor.
12, the control method of air conditioner according to claim 11 is characterized in that the described step that stops compressor should be more than the minimum lasting setting-up time.
13, a kind of control method of air conditioner, described air conditioner comprises: the rotary compressor of output after the cold-producing medium that the inboard compression of cylinder sucks into; The tube channel that optionally is communicated with the inside of cylinder; Between tube channel and cylinder, the channel valve that under the action of pressure of cylinder and tube channel, opens and closes; Tube channel optionally is connected in the converting member of compressor suction casing or deferent segment; It is characterized in that control method is according to indoor variations in temperature, the switching of control channel valve and compressor open-close closed procedure.
14, the control method of air conditioner according to claim 13, when it is characterized in that cooling off room air, comprise three following steps: when indoor temperature adds the temperature of setting value above the desired temperature value, control conversion equipment, the step of locking tube channel; When indoor temperature drops to the desired temperature value, control conversion equipment, the step of open channel pipe; When indoor temperature is lower than the desired temperature value and cuts the temperature of setting value, stop the step of compressor.
15, the control method of air conditioner according to claim 13, when it is characterized in that heating room air, comprise three following steps: when the indoor temperature end reaches the desired temperature value and cuts the temperature of setting value, control conversion equipment, the step of locking tube channel; When indoor temperature rises to the desired temperature value, control conversion equipment, the step of open channel pipe; When indoor temperature adds the temperature of setting value above the desired temperature value, stop the step of compressor.
16, a kind of control method of air conditioner is used when possessing inverter compressor cooling room air, comprises following three steps: when indoor temperature adds the temperature of setting value above the desired temperature value, and the step of the big volume of refrigerant of control compressor compresses; When indoor temperature drops to the desired temperature value, the step of control compressor compresses low capacity cold-producing medium; When indoor temperature is lower than the desired temperature value and cuts the temperature of setting value, compressor is stopped more than the setting-up time at least.
17, a kind of control method of air conditioner is used when possessing inverter compressor heating room air, comprises following three steps: when the indoor temperature end reaches the desired temperature value and cuts the temperature of setting value, and the step of the big volume of refrigerant of control compressor compresses; When indoor temperature rises to the desired temperature value, the step of control compressor compresses low capacity cold-producing medium; When indoor temperature adds the temperature of setting value above the desired temperature value, compressor is stopped more than the setting-up time at least.
CN 200510014041 2005-06-28 2005-06-28 Controlling method for air conditioner Pending CN1888663A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338440A (en) * 2010-07-22 2012-02-01 海尔集团公司 Variable frequency air conditioner and control method thereof
CN102425894A (en) * 2011-09-07 2012-04-25 冯益安 Method for manufacturing high-efficiency air conditioner and heat pump controller
CN106152414A (en) * 2016-07-26 2016-11-23 广东美的制冷设备有限公司 Air conditioner with surplus indoor unit control method and device
CN106152698A (en) * 2015-05-11 2016-11-23 Lg电子株式会社 Refrigerator and control method thereof
CN109028496A (en) * 2014-04-01 2018-12-18 艾默生环境优化技术有限公司 For controlling the system and method for variable displacement compressor
CN109631250A (en) * 2018-11-28 2019-04-16 珠海格力电器股份有限公司 Air conditioning control method, device and air-conditioning
CN110056501A (en) * 2019-05-31 2019-07-26 广东奥马冰箱有限公司 A kind of energy-saving refrigerator and its control method with positive displacement compressor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338440A (en) * 2010-07-22 2012-02-01 海尔集团公司 Variable frequency air conditioner and control method thereof
CN102425894A (en) * 2011-09-07 2012-04-25 冯益安 Method for manufacturing high-efficiency air conditioner and heat pump controller
CN109028496A (en) * 2014-04-01 2018-12-18 艾默生环境优化技术有限公司 For controlling the system and method for variable displacement compressor
CN109028496B (en) * 2014-04-01 2020-12-08 艾默生环境优化技术有限公司 System and method for controlling variable capacity compressor
CN106152698A (en) * 2015-05-11 2016-11-23 Lg电子株式会社 Refrigerator and control method thereof
US9989287B2 (en) 2015-05-11 2018-06-05 Lg Electronics Inc. Refrigerator and control method thereof
CN106152698B (en) * 2015-05-11 2018-07-24 Lg电子株式会社 Refrigerator and its control method
US10422563B2 (en) 2015-05-11 2019-09-24 Lg Electronics Inc. Refrigerator and control method thereof
CN106152414A (en) * 2016-07-26 2016-11-23 广东美的制冷设备有限公司 Air conditioner with surplus indoor unit control method and device
CN106152414B (en) * 2016-07-26 2018-11-09 广东美的制冷设备有限公司 Air conditioner with surplus indoor unit control method and device
CN109631250A (en) * 2018-11-28 2019-04-16 珠海格力电器股份有限公司 Air conditioning control method, device and air-conditioning
CN110056501A (en) * 2019-05-31 2019-07-26 广东奥马冰箱有限公司 A kind of energy-saving refrigerator and its control method with positive displacement compressor

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