CN1111685C - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN1111685C
CN1111685C CN98118577A CN98118577A CN1111685C CN 1111685 C CN1111685 C CN 1111685C CN 98118577 A CN98118577 A CN 98118577A CN 98118577 A CN98118577 A CN 98118577A CN 1111685 C CN1111685 C CN 1111685C
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CN
China
Prior art keywords
wind direction
temperature
air
baffle plate
mentioned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN98118577A
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Chinese (zh)
Other versions
CN1210230A (en
Inventor
石原学
船越智英
金井弘
渡边正人
进士干泰
细贝和伸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of CN1210230A publication Critical patent/CN1210230A/en
Application granted granted Critical
Publication of CN1111685C publication Critical patent/CN1111685C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy

Abstract

The present invention is to efficiently air-condition the specified region inside a room to be air-conditioned. When the mode is set to physically sensitive mode and air current control is started, the swing range is set together with initial position. After that, a main remote controller and a sub remote controller measure the temperature while performing initial swing, left-sided swing, and right-sided swing in order. When the optimum swing mode for left and right flaps is selected, the air conditioning in the selected swing mode is performed.

Description

Air conditioner
The present invention relates to the quilt that is provided with indoor unit is transferred the indoor air conditioner that carries out air-conditioning in chamber.Relate in particular to and utilize moving back and forth of the left and right sides wind direction baffle plate be arranged on exhaust outlet, blow out the air conditioner of air-conditioning wind to the prescribed limit of along continuous straight runs.
Air conditioner (to call " air conditioner " in the following text) is to utilize to be arranged on the heat exchanger of being transferred the indoor indoor set (indoor unit) in chamber, by to being transferred indoor the blowing out in chamber to carry out the air that excess temperature is regulated, realizes being transferred the indoor air conditioning in chamber.
In such air conditioner, the remote control switch that carries out the running operation of air conditioner is provided with temperature sensor, mainly be to control to make by air-conditioning to reach design temperature, transferred the indoor people's in chamber the temperature that reaches setting on every side thereby make by the detected temperature of this temperature sensor (being arranged on the temperature sensor on the remote control switch).That is remote control switch is being transferred the indoor operated device of people in chamber, and the temperature of this remote control switch approaches to be transferred the indoor people's in chamber sendible temperature.Therefore, by by the detected temperature of the temperature sensor of remote control switch as design temperature, can allow the people feel to be transferred the chamber indoor is a comfortable air-conditioning state.
But, the installation site of the indoor unit of air conditioner preferably is chosen in and can thus, can makes indoor whole zone become comfortable air-conditioning state to being transferred indoor whole zone, chamber to blow out the position of air-conditioning wind.
In recent years, utilize air conditioner carry out air conditioning by air-conditioned room in continuous expansion, in addition, the structure in these rooms has L word shape etc., its shape is also in variation.On the other hand, window, door, beam etc. need be avoided in the installation site of indoor unit, are subjected to a lot of restrictions.Therefore, realize coming the broad indoor whole zone of air-conditioning equably, need the very high air conditioner of air-conditioning ability with 1 indoor set.
But, do not wish that the broad quilt of air-conditioning is transferred indoor whole zone, chamber equably from economizing the viewpoint of energy.It is limited that people's space is promptly in most cases arranged, and the broad indoor whole zone, chamber of being transferred of air-conditioning also will be to the air after temperature adjustment is sent in nobody's space to, so produce the problem that needs to improve the air-conditioning ability because of this part space.
Consideration when carrying out such air-conditioning, economize can problem, zone that preferably can emphasis air-conditioning people place then, thereby, can consider to have people's area configurations temperature sensor herein, again according to the detected temperatures control air-conditioning ability of each temperature sensor at each.
Although can on indoor unit, be provided for controlling in the baffle plate of wind direction up and down of wind direction, left and right sides wind direction baffle plate is set again, require these wind direction baffle plates all can swing by certain speed.
On the other hand, want to carry out the zone of air-conditioning, may not all be in apart from the same distance of indoor unit upward, in addition, even want towards the region limits scope of wanting air-conditioning and swing left and right sides wind direction baffle plate, also being difficult to judges rightly wants the zone of air-conditioning.
The present invention is in view of the above fact and proposes, and purpose is to provide and can be used in effectively that air-conditioning has disposed the air conditioner in a plurality of zones of temperature sensor respectively.
First aspect present invention is by allowing the wind direction baffle plate that is arranged on the indoor unit exhaust outlet move back and forth and blow out air-conditioning wind to the prescribed limit of along continuous straight runs and regulate the air conditioner of being transferred the chamber room air at left and right directions, it is characterized in that it includes as lower device: the storage device that changes a plurality of Move Modes of above-mentioned wind direction baffle plate translational speed when preserving above-mentioned wind direction baffle plate and moving back and forth in the position of regulation; Be configured in the above-mentioned temperature-detecting device of being transferred indoor at least 2 places, chamber; With a plurality of Move Modes that are kept at above-mentioned storage device, above-mentioned wind direction baffle plate is moved on the limit in turn, the limit measure each Move Mode by the detected temperature of said temperature checkout gear, and then select the selecting arrangement of the pattern that the temperature difference of this mensuration temperature diminishes.
According to the present invention, preserve: when allowing the wind direction baffle plate of wind direction of change along continuous straight runs move back and forth, changed a plurality of patterns of translational speed, and pattern ground utilizes and is configured in 2 locational temperature-detecting devices at least and measures temperature one by one at assigned position.According to institute's measurement result, select the pattern of temperature difference minimum.By according to selected pattern control wind direction baffle plate, can make at least 2 places that are provided with temperature-detecting device reach the air-conditioning state of expectation.
Promptly, if it is certain from the air quantity that exhaust outlet blows out, then can carry out air-conditioning equably, in addition, can emphasis be set on this direction by the translational speed (swing speed) that reduces the wind direction baffle plate and carry out air-conditioning by allow the wind direction baffle plate move (swing) by certain speed.Here, can be which direction to carry out the Move Mode that the emphasis air-conditioning comes conversion and preserves the wind direction baffle plate with respect to exhaust outlet in, by select optimal mode from the Move Mode of being preserved, air-conditioning quilt is transferred indoor zone, at least 2 place, chamber efficiently.
According to the 2nd aspect of the present invention, above-mentioned selecting arrangement judges in the detected variation of temperature of each above-mentioned Move Mode whether this Move Mode is suitable according to above-mentioned each temperature-detecting device.
According to the present invention, according to utilizing the detected variations in temperature of above-mentioned each temperature-detecting device to judge whether this Move Mode is suitable.For example, when system is warm,, can judge that then this Move Mode is improper, and if at least one side's temperature rising under the state that does not reach design temperature then can be selected this Move Mode if descend by the detected temperature of each temperature-detecting device.
According to third aspect present invention, above-mentioned storage device is preserved a plurality of Move Modes that move back and forth scope and each moving range.
According to this invention, be set with the scope that moves back and forth of a plurality of wind direction baffle plates.That is, the moving range of wind direction baffle plate is exactly the scope of air-conditioning, and its air-conditioner efficiency of zone that leaves this wind direction baffle plate moving range is low.That is,, can emphasis ground set the scope of air-conditioning by the scope that moves back and forth of conversion wind direction baffle plate.
By setting Move Mode for each moving range respectively, can be partitioned into thinner zone and carry out air-conditioning.
According to fourth aspect present invention, one of said temperature checkout gear has the position setting device of setting with respect to the relative position of above-mentioned indoor unit, and the position that above-mentioned selecting arrangement correspondence is set by above-mentioned position setting device, selection is kept at the moving range of the above-mentioned wind direction baffle plate in the above-mentioned storage device.
According to the present invention, on at least one side's temperature-detecting device, be provided with and set the position setting device disposed with respect to the relative position (direction) in the zone of this temperature-detecting device of indoor unit, can select the moving range of wind direction baffle plate so that can carry out air-conditioning to the direction that sets by this position setting device.Thus, the desired zone of air-conditioning more efficiently.
Fig. 1 illustrates the indoor unit that is applicable to this example and the brief strabismus map of remote control switch.
Fig. 2 is the skeleton diagram that the kind of refrigeration cycle of the air-conditioning that is applicable to this example is shown.
Fig. 3 is the broad cross-section map that the inside of indoor unit is shown.
Fig. 4 illustrates the general block diagram that substrate constitutes in the indoor unit.
Fig. 5 illustrates the general block diagram that the outdoor unit substrate constitutes.
It is respectively the general view that master remote controller is shown that (A) of Fig. 6 reaches (B), and wherein, (A) state of slip cover cap is opened in expression; (B) state of slip cover cap is closed in expression.
Fig. 7 is the block diagram that the summary formation of the sub remote controller that relates to the present invention is shown.
It is respectively that the general view that relates to sub remote controller of the present invention is shown that (A) of Fig. 8 reaches (B), and wherein, (A) state of slip cover cap is opened in expression; (B) state of slip cover cap is closed in expression.
Fig. 9 is the skeleton diagram that illustrates with respect to by the wobble area of the left and right sides wind direction baffle plate of the indoor unit of sub remote controller appointed positions.
Figure 10 illustrates the skeleton diagram that blows out the zone of air-conditioning wind from indoor unit, expression air-conditioning main region and subregion both sides' state.
(A) of Figure 11 is respectively that the initial position of setting of correspondence position configuration switch and the skeleton diagram of hunting range are shown to (C).
Figure 12 illustrates to utilize left and right sides wind direction baffle plate to carry out the flow chart of current-controlled summary.
Figure 13 illustrates according to the temperature difference of the airflow position of the best that is used to select to utilize left and right sides wind direction baffle plate to judge the wherein flow chart of an example that whether is fit to.
The following describes an example of the present invention.
Be applicable to the kind of refrigeration cycle of air conditioner of the present invention (below be referred to as " air conditioner 10 ") shown in Fig. 2.This air conditioner 10 constitutes by being arranged on the indoor unit 12 of being transferred the chamber and being arranged on outdoor outdoor unit 14, and indoor unit 12 makes the extra heavy pipe refrigerant piping 16A of cold-producing medium circulation be connected with tubule refrigerant piping 16B with outdoor unit 14 usefulness.
Indoor unit 12 is provided with heat exchanger 18, and refrigerant piping 16A, a 16B end separately is connected on this heat exchanger 18.In addition, the other end of refrigerant piping 16A is connected on the valve 20A of outdoor unit 14.This valve 20A is connected on the cross valve 24 via muffler 22A.This cross valve 24 is connected on the compressor 26 by reservoir 28 and muffler 22B.
And then outdoor unit 14 is provided with heat exchanger 30.These heat exchanger 30 1 sides are connected on the cross valve 24, and opposite side is connected on the valve 20B via capillary 32, filter 34, adjuster 38.In addition, between filter 34 and adjuster 38, be provided with electric expansion valve 36, on valve 20B, connecting the other end of refrigerant piping 16B.Thus, between indoor unit 12 and outdoor unit 14, constitute the closed circuit of the airtight cold-producing medium that forms kind of refrigeration cycle.
Air conditioner 10 can utilize the running of compressor 26, by cold-producing medium is circulated freeze or make warm running in this kind of refrigeration cycle.
Promptly in refrigeration mode, because of be provided for heat exchanger 30 and then liquefaction by compressor 26 refrigerant compressed, this cold-producing medium that is liquefied can cool off the air by heat exchanger 18 by in the gasification of heat exchanger 18 places of indoor unit 12.Then opposite in the warm pattern of system, by by the condensing and heat release at heat exchanger 18 places of indoor unit 12 of compressor 26 refrigerant compressed, the heat of utilizing this cold-producing medium to emit can heat the air by heat exchanger 18.
The flow direction of the cold-producing medium of (refrigeration mode or dehumidification mode) when (the warm pattern of system) and cooling operation when utilizing arrow that the warm running of system is shown among Fig. 2, switching by cross valve 24, operation mode can be switched into refrigeration mode (containing dehumidification mode) and the warm pattern of system, by the valve opening of control electric expansion valve 36, can adjust the evaporating temperature of cold-producing medium.In addition, the present invention is applicable to the air conditioner that constitutes arbitrarily, and air conditioner 10 illustrates a wherein example.
As shown in Figure 3 such, indoor unit 12 is provided with heat exchanger 18 in the cabinet 42 that is formed with suction inlet 48 and exhaust outlet 50.This cabinet 42 is fixed on indoor wall etc. by substrate 40.
In this cabinet 42, between heat exchanger 18 and suction inlet 48, dispose cross flow fan (cross flow fun) 44 and filter 46, action by cross flow fan 44, indoor air is inhaled in the cabinet 42, and after passing through filter 46 and heat exchanger 18, blow to indoor from exhaust outlet 50.At this moment, also and between the cold-producing medium of circulation in heat exchanger 18 carried out heat exchange by heat exchanger 18 because of blowing to indoor air, so, become to regulate the tempering air of indoor temperature.
On the exhaust outlet 50 of indoor unit 12, be provided with up and down wind direction baffle plate 54 with left and right sides wind direction baffle plate 52, utilize left and right sides wind direction baffle plate 52 and up and down wind direction baffle plate 54 can change the air-conditioning wind that blows out from exhaust outlet 50 (by temperature adjustment air) towards.That is, be blown out to indoor air, can utilize up and down wind direction baffle plate 54 conversion wind direction along the vertical direction from exhaust outlet 50.And left and right sides wind direction baffle plate 52 can make the wind direction of the air that blows out from exhaust outlet 50 along left and right directions (horizontal direction) conversion.Air conditioner 10 can utilize the wind direction of the air that up and down wind direction baffle plate 54 and the 52 any conversion of left and right sides wind direction baffle plate blow out from exhaust outlet 50.
As shown in Figure 4, indoor unit 12 is provided with power supply board 56, control substrate 58 and power supply relay substrate 60.The power supply board 56 that is used to supply with the electric power that makes air conditioner 10 runnings is provided with motor power 62, control circuit power supply 64, serial power supply 66 and drive circuit 68.In addition, on control circuit substrate 58, be provided with serial circuit 70, drive circuit 72 and microcomputer 74.
On the drive circuit 68 of power supply board 56, be connected with the fan electromotor 76 (for example DC brushless electric machine) that drives cross flow fan 44, correspondence provides driving electric power from the control signal motor power 62 that is arranged on the microcomputer 74 on the control substrate 58.At this moment, the output voltage of microcomputer 74 control drive circuits 68 makes them can be by 256 grades of variations in the scope of 12V～36V.Thus, can adjust the air quantity of the air-conditioning wind that blows out from the exhaust outlet 50 of indoor unit 12.
On the drive circuit 72 of control substrate 58, be connected with power supply relay substrate 60, handle the left and right sides wind direction baffle plate motor 77 of left and right sides wind direction baffle plate 52 and handle the baffle plate of the wind direction up and down motor 78 of wind direction baffle plate 54 up and down.On power supply relay substrate 60, be provided with power supply relay 80 and Thermal Cutoffs etc., the signal manipulation power supply relay 80 that utilizes microcomputer 74 to send opens and closes the contact 80A that is used for providing to outdoor unit 14 electric power.Air conditioner 10 can carry out the supply of electric power to outdoor unit 14 by cutting out contact 80A.
Left and right sides wind direction baffle plate motor 77 and up and down wind direction baffle plate motor 78 corresponding microcomputers 74 control signal and be controlled, and then handle left and right sides wind direction baffle plate 52 and wind direction baffle plate 54 up and down respectively.By left and right sides wind direction baffle plate 52 swing of direction to the left and right, the blow-off direction of the air (air-conditioning wind) that blows out from exhaust outlet 50 is direction transformation to the left and right, by up and down wind direction baffle plate 54 swing of direction up and down, the blow-off direction of the air (air-conditioning wind) that blows out from the exhaust outlet 50 of indoor unit 12 is direction transformation up and down.Left and right sides wind direction baffle plate 52 and up and down the manipulation of wind direction baffle plate 54 wind that can fixedly blow out also can set wind direction for and change randomly towards direction arbitrarily.
Indoor unit 12 at air conditioner 10, rotation and left and right sides wind direction baffle plate 52 and the manipulation of wind direction baffle plate 54 up and down by control cross flow fan 44, can be by the air quantity and the wind direction of expectation, perhaps control is used to make indoor comfortable air quantity and wind direction, blows to the air behind the air-conditioning indoor.
Other has, and as shown in Figure 9, can control left and right sides wind direction baffle plate 52 is the center with the front of indoor unit 12, at left and right directions upper angle θ 0(angle is 2 θ as a whole 0) scope in change wind direction.This angle 2 θ here 0, as it can be expanded and is set to 100 °～120 ° with respect to about 90 ° of scopes in past.
As shown in Figure 4, the serial circuit 70 that is connected on the serial power supply 66 of microcomputer 74 and power circuit 56 is connected on the outdoor unit 14, microcomputer 74 can be by carrying out serial communication between this serial circuit 70 and the outdoor unit 14, and the action of control outdoor unit 14.
In addition, on indoor unit 12, be provided with reception from the receiving circuit of the operation signal of remote control switch 120 (with reference to Fig. 1) and have running and show that this display base plate 82 is connected on the microcomputer 74 with the display base plate 82 that shows LED etc.As shown in Figure 1, the display part 82A of display base plate 82 is configured in the front of cabinet 42, and this display part 82A is provided with the acceptance division of reception by the operation signal of remote control switch 120 transmissions.Thus, by with remote control switch 120 towards the display part 82A line operate of going forward side by side, can input to the operation signal that remote control switch 120 sends microcomputer 74.
As shown in Figure 4, on microcomputer 74, be connected with temperature sensor 84 that detects indoor temperature and the heat exchange temperature sensor 86 that detects the coil temperature of heat exchanger 18, and then, also be connected with the service LED and the running change-over switch 88 that are arranged on the control substrate 58.Running change-over switch 88 is switched " running usually " and " trial run " under the situation such as when safeguarding, and it is switched to contact of open power switch 88A and cut off " stopping " to the supply of the running electric power of air conditioner 10.Usually, this running change-over switch 88 is configured to the contact of " normal operation " and closed power switch 88A.And service LED passes through bright lamp operation when safeguarding, can inform the OBD result to the maintenance personal.
On indoor unit 12, be provided with the coupling terminal block 90 of the distribution between connection and the outdoor unit 14.On terminal 90A, the 90B of this coupling terminal block 90,90C, connecting by indoor unit 12 to distribution that outdoor unit 14 supply powers are used and be used for the distribution that between indoor unit 12 and outdoor unit 14, carries out serial communication.
As shown in Figure 5, on outdoor unit 14, be provided with terminal board 92, terminal 92A, 92B, the 92C on this terminal board 92 is connected respectively on terminal 90A, 90B on the terminal board 90 of indoor unit 12, the 90C.
On this outdoor unit 14, be provided with rectification substrate 94, control substrate 96.On control substrate 96, microcomputer 98 is being set, noise filter 100A, 100B, 100C, serial circuit 102 and Switching Power Supply 104 etc.
On rectification substrate 94, the electric power that voltage multiplying rectifier is supplied with via noise filter 100A, and the direct current power after level and smooth by noise filter 100B, 100C exported to Switching Power Supply 104.Switching Power Supply 104 and microcomputer 98 are connected on the converter circuit 106 together, and this converter circuit 106 is connected again on the compressor motor 108.Converter circuit 106 is exported to compressor motor 108 to correspondence by the electric power of the frequency of the control signal of microcomputer 98 outputs, and then rotation drive compression machine 26.
In addition, microcomputer 98 can control from the frequency of the electric power of converter circuit 106 output make it by or the scope of (upper limit depends on the upper limit of revolution electric current) more than the 14Hz, thus, can change compressor motor 108, be the revolution (rotating speed) of compressor 26, and then the running ability of controlled system compressor 26 (the cooling/heating ability of air conditioner 10).
On this control substrate 96, be connected with cross valve 24 and drive fan electromotor 110, the fan electromotor capacitor 110A of the blowing fan (diagram is omitted) be used for cooling heat exchanger 30.In addition, on outdoor unit 14, the compressor temperature sensor 116 of the coil temperature sensor 114 of the cold-producing medium coil temperature that be provided with the outer temperature degree sensor 112 that detects outer temperature degree, detects heat exchanger 30 and the temperature of detection compressor 26, they all are connected on the microcomputer 98.
Microcomputer 98 is when corresponding operation mode switches cross valve 24, can also be according to the testing result of outer temperature degree sensor 112, coil temperature sensor 114 and compressor temperature sensor 116, the ON/OFF of control fan electromotor 110 and the operating frequency (ability of compressor 26) of compressor motor 108 etc.
In addition, on control substrate 96, be connected with and drive the motor 118 that electric expansion valve 36 opens and closes.Microcomputer 98 utilizes motor 118 to control the aperture of electric expansion valve 36.
The remote control switch 120 (following conduct " master remote controller ") that is useful on the running operation of carrying out air conditioner 10 is shown on Fig. 6 A and Fig. 6 B.Master remote controller 120 is provided with display part 122.Operation mode, design temperature, indoor temperature (room temperature), time can be shown on this display part 122, the operating condition when wind direction, air quantity etc. turn round air conditioner 10 can be shown in addition.
In addition, on master remote controller 120, set button 126A, 126B, also be provided with body sense button 128 and wind direction button 130 with running/stop button 124, temperature.Air conditioner 10 can turn round/stop according to the operation of running/stop button 124.In addition, utilize temperature to set button 126A, 126B, can also change design temperature shown on the display part 122 (target temperature when carrying out air-conditioning).
On master remote controller 120, inside is provided with temperature sensor (omit diagram), utilizes this master remote controller 120 can measure the room temperature around the master remote controller 120 and it is sent to indoor unit 12.In addition, also be provided with temperature sensor on sub remote controller 140 described later, it also can be measured the room temperature around the sub remote controller 140 and it is sent to indoor unit 12.The microcomputer 74 of indoor unit 12 can utilize the temperature sensor 84, master remote controller 120 and the sub remote controller 140 that are arranged on indoor unit 12 to detect indoor temperature.
Body sense button 128 is for switching the temperature sensor button of measuring room temperature, by operating this body sense button 128, can switch the temperature sensor 84 that uses indoor unit 12 and measure the general mode of room temperature and on the basis of this temperature sensor 84, use master remote controller 120 (physically sensitive mode usually) or use master remote controller 120 and sub remote controller 140 (many physically sensitive modes) to measure the physically sensitive mode of room temperature.
Other has, and by the operation of wind direction button 130, the direction (wind direction) of the air that blows out from exhaust outlet 50 can be according to from the signal of sub remote controller 140 and the inclined left right.
Master remote controller 120 is provided with slip cover cap 134, by the slide of this slip cover cap 134, can expose the guidance panel 132 that has all action buttons.
As shown in Figure 6A, utilize the running switching push button 136 on the hidden guidance panel 132 in slip cover cap 134, the operation mode that can switch air conditioner 10 in turn for automatically, warm, the dehumidifying of system, refrigeration, clean air, drying.In addition, utilize the switching manipulation in the guidance panel 132, can carry out the air quantity that blows out from exhaust outlet 50, the switching of wind direction (above-below direction), can select the selection of air-conditioning ability such as powerful and energy-conservation.And then, utilizing the switching manipulation on the guidance panel 132, timers such as the time started of can also turning round, running dwell time are set.
This master remote controller 120 can be according to the operation of each action button, and the operation signal of respective operations content is sent to the display part 82A of indoor unit 12, simultaneously, also sends by the temperature around the detected master remote controller 120 of temperature sensor.In addition, the operation of master remote controller 120 unattended operation buttons how, can send by certain time interval in the operation process of air conditioner 10.
And as shown in Figure 1, the display part 82A of air conditioner 10 also can merge the signal of reception other remotely monitored sensor switch (hereinafter referred to as " sub remote controller 140 ") that is provided with from being different from master remote controller 120.
On Fig. 7, Fig. 8 A and Fig. 8 B, the summary of sub remote controller 140 is shown.As shown in Figure 7, sub remote controller 140 has the temperature detecting part 142 of the signal (as voltage) that detects the detected temperature of sub remote controller 140 also output correspondence of temperature on every side, simultaneously, also have the people and detect portion 144 and set positions switch 146, these devices are connected on the transformation component 148.In addition, this transformation component 148 is connected on the Department of Communication Force 150.
Detect in the portion 144 the people, be provided with the people who has the thermoelectric element that can detect the far infrared of assembling by Fresnel lens and detect sensor 152.Like that, this people detects sensor 152 and is configured in the hemispheric dome 154 that is arranged on sub remote controller 140 central portions shown in Fig. 8 A and Fig. 8 B, and it can detect through the far infrared around the dome 154.
As shown in Figure 7, this people detects sensor 152 and is connected on the checking circuit 156.The people detect portion 144 be a kind of according to checking circuit 156 have the manual inspection of having no way of know the variation of sensor 152 detected far infrareds detect sub remote controller 140 around have unmanned common people to detect structure.
In addition, on checking circuit 156, be connected with sensitivity control 158.Shown in Fig. 8 B like that, on sub remote controller 140, be provided with the adjustment knob 158A of sensitivity control 158, utilize adjustable the giving sb. a hard time of this adjustment knob 158A to detect the sensitivity of sensor 152, promptly can adjust the detection distance.
Shown in Fig. 8 A and Fig. 8 B like that, by the operation that the slip cover cap 140A of sub remote controller 140 is slided, can expose set positions switch 146 downwards.
Shown in Fig. 8 B like that, position switch 146 can be corresponding with respect to the position of the indoor unit 12 of sub remote controller 140, slide adjuster 146A reach " left side " 3 sections display positions slips to " right side ", " central authorities ".As shown in Figure 9, for example, when the relative position towards sub remote controller 140 and indoor unit 12 is positioned at the right side, then set positions switch 146 slides are got final product to " right side ".In addition, above-mentioned usually adjustment knob 158A is also hidden by slip cover cap 140A.
Transformation component 148 is according to the sign indicating number of each signal that sets in advance, and conversion detects the signal of portion 144 and set positions switch 146 from temperature detecting part 142, people, and exports to Department of Communication Force 150.
Department of Communication Force 150 sends the signal by transformation component 148 outputs to indoor unit 12.Other has, shown in Fig. 8 A and Fig. 8 B like that, on sub remote controller 140, be provided with the power switch 160 of ON/OFF sub remote controller 140.Department of Communication Force 150 is according to ON (opening) operation of power switch 160, and when sending ON (opening) signal, also correspondence is carried out the transmission of signal from the input that temperature detecting part 142, people detect portion 144 and set positions switch 146.
Sub remote controller 140 is by ON (opening) operating power switch 160, utilize the room temperature measuring of temperature detecting part 142 and utilize the people to detect the unmanned detection that has of portion 144, detecting portion 144 the people detects in people's the process, send the room temperature of being measured by certain time interval, send the position signalling of setting by set positions switch 146 simultaneously.
On the other hand, the microcomputer 74 of indoor unit 12 is judged the position of sub remote controller 140 according to the set positions signal from sub remote controller 140, and allows wind direction baffle plate 52 swings in the left and right sides so that the air-conditioning wind energy that blows out from exhaust outlet 50 blows to this position.In addition, if expression is stopped by the signal that sub remote controller 140 detects the people, then the microcomputer 74 of indoor unit 12 stops the swing of this left and right sides wind direction baffle plate 52, and begins the swing of left and right sides wind direction baffle plate 52 by importing the signal that detects the people once more.At this moment, when microcomputer 74 makes it to physically sensitive mode at the body sense button 128 of handling master remote controller 120, can use the room temperature that sends by sub remote controller 140 to control the temperature and the air quantity of air-conditioning wind.
As shown in Figure 10, the indoor unit 12 of air conditioner 10 is installed into usually towards the state that is blown out air-conditioning wind by the main region 162A in the accent chamber 162.That is, indoor unit 12 is installed into its front towards being transferred the indoor main region in chamber, and usually, it is comfortable air-conditioning state that its running can make this main region.
Sub remote controller 140 is installed in to be transferred in the chamber 162 and the zone of desiring to carry out air-conditioning (hereinafter referred to as " subregion 162B ") of main region 162A diverse location.
As shown in Figure 9, air conditioner 10 utilize air-conditioning wind that left and right sides wind direction baffle plate 52 blows out towards the initial position that is generally indoor unit 12 fronts (below be made as " initial position C "), left and right sides wind direction baffle plate 52 can be that the center is at angle θ with this initial position C 0Scope in swing (for example about swing in 50 ° the scope).In addition, be set at the set positions switch 146 of sub remote controller 140 " in " time, be the center left and right sides wind direction baffle plate 52 that can swing equally with this initial position C.
On the other hand, be " left side " or " right side " if set the set positions switch 146 of sub remote controller 140, then initial position R, the L of indoor unit 120 change to angle θ respectively R, θ L, each comfortable left and right corner degree θ 1Swing in the scope of (for example about 30 °).That is, left and right sides wind direction baffle plate 52 utilizes the set positions switch 146 of sub remote controller 140, and the initial position at the center when variable conduct is swung simultaneously, can also change amplitude of fluctuation.
If the body sense button 128 of operation master remote controller 120 then is arranged on room temperature that the microcomputer 74 of indoor unit 12 can detect according to design temperature, by master remote controller 120 and carries out operation of air conditioner by the room temperature that sub remote controller 140 detects.
At this moment, owing to establish the room temperature T that detects by master remote controller 120 RtpReach the room temperature T that detects by sub remote controller 140 RtsMuch the same, so microcomputer 74 can change the swing speed of left and right sides wind direction baffle plate 52.
In table 1, the setting with respect to the set positions switch 146 of sub remote controller 140 is shown, one of weave mode of this left and right sides wind direction baffle plate 52 example.The variable one-tenth of the swing speed of left and right sides wind direction baffle plate 52 at a high speed, 3 grades of middling speed and low speed, in initial swing, by certain speed (for example, middling speed or low speed) allow left and right sides wind direction baffle plate 52 swing, pay attention on a left side or during right the attention, can adopt towards indoor unit 12 allow than initial position in the left side and the swing speed on right side become the way of low speed.In addition, stop temporarily and will make the swing of left and right sides wind direction baffle plate 52 stop the regular hour.[table 1]
Set positions SW The right setting Central authorities are provided with A left side is provided with
Hunting range 40°～100° 0°～100° 0°～60°
Initial swing Gamut (middling speed) stops at left end temporarily Gamut (middling speed) nothing stops temporarily Gamut (middling speed) stops at right-hand member temporarily
A left side is paid attention to Low speed right side, left side stops at left end at a high speed temporarily Low speed right side, left side does not have temporarily at a high speed and stops Low speed right side, left side does not have temporarily at a high speed and stops
The right attention High speed right side, left side low speed does not have temporarily and stops High speed right side, left side low speed does not have temporarily and stops High speed right side, left side low speed stops at right-hand member temporarily
By changing the swing speed of left and right sides wind direction baffle plate 52, can change the air quantity that blows out from exhaust outlet 50.That is,, can increase the air quantity that blows out towards this wind direction by turning down the swing speed of left and right sides wind direction baffle plate 52, so that the faster rising of temperature when system is warm, the faster decline of temperature during refrigeration.
For example, shown in Figure 11 A like that, when being set at initial position R, by paying attention to making left and right sides wind direction baffle plate 52 to swing with right, can increase the air quantity of the face side (initial position C side) of indoor unit 12, shown in Figure 11 B like that, when being set at initial position L, can increase air quantity towards the left side of indoor unit 12.That is, in the amplitude of fluctuation of regulation, emphasis is set and carries out air-conditioning in the left side.In addition, shown in Figure 11 C like that, when being set at initial position C,, can blow out blowing out the air-conditioning wind of the whole regional homogeneous air quantity in the zone from exhaust outlet 50 by carrying out initial swing.
Because the relative position with respect to indoor unit 12 of master remote controller 120 and sub remote controller 140 is indeterminate, so, microcomputer 74 can change the variation of swing speed frontier inspection survey by master remote controller 120 and sub remote controller 140 detected room temperatures or room temperature by the limit, judge the best swing state (weave mode) of left and right sides wind direction baffle plate 52, and according to this result of determination control left and right sides wind direction baffle plate 52.
The following describes the effect of this example.
In air conditioner 10, if utilize the operation of master remote controller 120 to turn round/shut-down operation by arbitrary state of having set cooling operation, dehumidifying running and the warm running of system etc., then it begins the running according to the operation mode that sets.
Begin operation of air conditioner if carry out running operation, then air conditioner 10 is measured design temperature and indoor temperature, and according to this measurement result, the operating frequency of setting compressor 26, air quantity (rotating speed of cross flow fan) etc. carry out operation of air conditioner based on this setting result again.
In addition, on outdoor unit 14, the operation mode that correspondence sets switches cross valve 24.For example, if be set at refrigeration or dehumidification mode, then will be fed into the heat exchanger 30 of outdoor unit 14 by compressor 26 refrigerant compressed.At this, be liquefied by heat exchanger 30 by compressor 26 refrigerant compressed, this cold-producing medium that has been liquefied is provided for the heat exchanger 18 of indoor unit 12.The cold-producing medium of heat exchanger 18 that is provided to indoor unit 12 is by heat exchanger 18 time gasification and the cooling air by heat exchanger 18.
The high-pressure refrigerant that is compressed by compressor 26 on the other hand, when the warm running of system, switches cross valve, so that can be fed into the heat exchanger 18 of indoor unit 12.Like this, at the high-pressure refrigerant that has been compressed by compressor 26 during by heat exchanger 18 liquefaction, will heating air by heat exchanger 18.By being blown toward indoor from exhaust outlet 50, can warm up indoor system by these heat exchanger 18 warmed-up air.
But, though on air conditioner 10, normally utilize the temperature sensor 84 of indoor unit 12 to carry out temperature measuring, if but the body sense button 128 of operation master remote controller 120 then carries out to add the running of the physically sensitive mode that has used the room temperature of being measured by master remote controller 120 on the room temperature of being measured by temperature sensor 84.At this moment, be ON (opening) at sub remote controller 140, and when receiving the room temperature of measuring by the temperature detecting part 142 of sub remote controller 140, will carry out to carry out the running of many physically sensitive modes of operation of air conditioner according to the room temperature of measuring respectively by temperature sensor 84, master remote controller 120 and sub remote controller 140.In addition, physically sensitive mode can also be at automatic setting move during the automatic running of the wind direction of warm, the drying of refrigeration, system etc. and air quantity.
On the other hand, if set physically sensitive mode for, then the microcomputer 74 of indoor unit 120 can be controlled left and right sides wind direction baffle plate 52 and makes by master remote controller 120 detected room temperature T RtpWith the room temperature T that detects by sub remote controller 140 RtpRoughly consistent (temperature difference is in prescribed limit).That is, though owing to know the general location of master remote controller 120 and sub remote controller 140, its accurate situs ambiguus, so, adjust the swing speed of left and right sides wind direction baffle plate 52 and select best swing state.In addition, stipulating in this example that left and right sides wind direction baffle plate 52 is pressed 50pps (pulse/sec), 2 ° of/second variations of wind direction, is 60pps at a high speed, and middling speed is 30pps, and low speed is 15pps, stops temporarily, then stops the swing 30 seconds of left and right sides wind direction baffle plate 52.
In Figure 12, the summary of the air quantity control that utilizes left and right sides wind direction baffle plate 52 is shown, this flow chart is set up current-controlled condition and operation after confirming (judging certainly) air-flow control beginning with 200 initial steps.In addition, current-controlled beginning condition under the state that is set to automatic running (refrigeration, system is warm and dehumidifying) and physically sensitive mode at least for sending out the room temperature signal condition respectively from master remote controller 120 and sub remote controller 140.
If the set condition of the set positions switch 146 that is sent out by sub remote controller 140 is then read in air-flow control beginning in step 202, and set the initial position (step 204) of left and right sides wind direction baffle plate 52.
So, for example, when configuration switch 146 was set to " right side ", it was configured to initial position R (with reference to Fig. 9 and Figure 11 A); When being " central authorities ", it is configured to initial position C (with reference to Fig. 9 and Figure 11 C); And be set to when being " left side " at configuration switch 146, it is configured to initial position L (with reference to Fig. 9 and Figure 11 B).
After this, at first at step 206 beginning initial swing.This begins swing and continues certain hour (for example 10 minutes).Step 208 in this initial swing process is carried out temperature difference and is judged.
In Figure 13, the summary that temperature difference is judged is shown.In addition, Figure 13 illustrates the warm working order of system, and when cooling operation, the judgement of variations in temperature is opposite.
In this flow chart, the room temperature T that the master remote controller 120 when initial step 240 is read in the swing beginning detects RtpWith room temperature T RtsAfter this, in step 242, confirm whether carried out the swing of certain hour (for example about 10 minutes), if carried out the swing (judging certainly) of certain hour, the room temperature T that master remote controller 120 and sub remote controller 140 are detecting after then jumping to step 244 and reading in swing Rtp, T Rts
Then, in step 246, the room temperature T after confirming to swing RtpWith room temperature T RtsTemperature difference.Here, if the room temperature T after the swing RtpWith room temperature T RtsTemperature difference be (for example 2 ℃ in) in the scope of regulation, then the sendible temperature of factor zone 162B and main region 162A about equally, can continue by present weave mode, so will carry out sure judgement in step 246, program jumps to step 248, sets for and continues present weave mode (OK judgement).
On the other hand, when step 246 had been carried out negative judgement, program jumped to step 250, judged the room temperature T that is detecting with master remote controller 120 RtpVariations in temperature.At this, promptly in this judgement, for example, if the temperature difference of the room temperature the when room temperature in when beginning and swing finish be setting with interior (for example 0.5 ℃), then be judged to be equally, if below the setting, then be judged to be temperature and descend or rise.
If the room temperature T that is detecting by master remote controller 120 RtpBe to descend, then program jumps to step 248, sets for and continues present weave mode.In addition, at room temperature T RtpThe same or when rising, then program jumps to step 252, confirms the room temperature T that sub remote controller 140 is measured RtsWhether rise.
At this moment, at the room temperature T that is detecting by sub remote controller 140 RtsWhen rising (in step 252 for certainly judging), program jumps to step 248, sets for and continues present weave mode.And at the room temperature T that is detecting by sub remote controller 140 RtsBe the same or when descending, in step 252 for negating to judge that program will jump to step 254, be set at the change weave mode.
On the one hand, in being shown in the flow chart of Figure 12, if the end temp difference is judged, then program jumps to the affirmation that step 210 is carried out result of determination, be judged as (OK) when continuing present weave mode, program will jump to step 212, be set at the initial swing as present weave mode.
On the other hand, when being judged as the change weave mode, for negating judgement, program jumps to step 214 in step 210.In this step 214, weave mode is altered to left-sided swing and begins the swing of left and right sides wind direction baffle plate 52 from initial swing, the trip temperature difference of going forward side by side is judged (step 216).
After this, if press certain hour, swing certain hour with the weave mode of left side attention, the trip temperature difference of going forward side by side is judged, then will confirm the result of determination that this temperature difference is judged in step 218, be judged to be when continuing present weave mode (in step 218 for judging certainly), program will jump to step 220, be set at as the left side of present weave mode and pay attention to pattern.
On the one hand, when being judged as the change weave mode, for negating judgement, program will jump to step 222 in step 218.In this step 222, the beginning right-sided swing, and carry out judging (step 224) according to the temperature difference of right-sided swing.Continue weave mode (being judgement certainly in step 226) if this result is judged to be, then program will jump to 228, and the weave mode of setting left and right sides wind direction baffle plate 52 is right the attention.
On the other hand, even carry out right-sided swing, when being judged as change weave mode (judging for negative), also program is jumped to step 230, and confirm whether to change the position of wind direction baffle plate 54 up and down in step 226.
In the automatic running of the cooling/heating situation of air conditioner 10, because wind direction baffle plate 54 stops (fix) on the position of regulation up and down, so, to for example changing 1 grade up and down during the stop position of wind direction baffle plate 54, be judgement certainly in step 230.Thus, for example when system is warm, will be towards the baffle plate of wind direction up and down 54 of below by 1 grade towards the top, and the initial swing of beginning step 206.
In addition, when the change of not carrying out wind direction baffle plate 54 up and down, perhaps when the change of wind direction baffle plate 54 has finished up and down (in step 230 for negating to judge), program will jump to step 232 and set initial swing for.Also have, the weave mode of the left and right sides wind direction baffle plate 52 that sets will be adjusted when producing variations in temperature or when step 232 is set initial swing and passed through the stipulated time once again.Have, the weave mode of the left and right sides wind direction baffle plate 52 that sets can be removed by the releasing of physically sensitive mode, stop (stopping of room temperature measuring) etc. of sub remote controller 140 again.
Like this, because can be by the weave mode of change left and right sides wind direction baffle plate, selection is also set and is wanted emphasis to carry out the zone of air-conditioning, so, even if the situs ambiguus of sub remote controller 140, master remote controller 120 also can be selected and set to be used to make the main region 162A and the subregion 162B that are transferred in the chamber 162 to reach the suitableeest wind direction or the swing state of left and right sides wind direction baffle plate 52, so can carry out air-conditioning efficiently.
On the other hand, at sub remote controller 140, it is unmanned by having in certain interval detection subregion 162B that the people detects sensor 152, if sub remote controller 140 does not detect the people, then because of air conditioner 10 is used for the control of air-conditioning main region 162A and subregion 162B both sides' left and right sides wind direction baffle plate 52 with releasing, and can prevent that the subregion 162B to nobody from doing the situation of unnecessary air-conditioning.
Like this, transfer in the chamber 162 by using air conditioner 10 air-conditioning quilts, the desired zone of an air-conditioning makes it to reach comfortable efficiently, so, the province's energy in the time of can utilizing air conditioner 10 to seek in the air-conditioning quilt accent chamber 162.At this moment, owing to select the swing state of left and right sides wind direction baffle plate 52, so, even the indeterminate suitable air-conditioning that also can realize current region of air conditioning area.
In addition, at this example, though illustrated be that relative 1 indoor unit 12 respectively uses 1 master remote controller 120 and sub remote controller 140, many estrades remote controller 140 is set also is fine.Thus, can be broad indoor a plurality of zones and the specific zone of air-conditioning in separately efficiently only of being divided into.
In addition, illustrated example is not only to be defined in formation of the present invention above.The present invention is applicable to that air-conditioning is provided with the air conditioner of the arbitrary structures of being transferred the chamber of indoor unit.
As described above, according to the present invention, with predefined a plurality of Move Modes the wind direction baffle plate is moved by lateral dominance in turn, frontier inspection is surveyed by the temperature in the indoor place, many places of air-conditioning, both made the regional indefinite situation that is provided with each temperature-detecting device, also can select can efficient well air-conditioning be provided with the wind direction baffle plate Move Mode in the zone of temperature-detecting device.Therefore, is transferred indoor whole zone, chamber from needless to say, can also be obtained the effect of the excellence in indoor desired zone, air-conditioning quilt accent chamber efficiently and so on.

Claims (4)

1. air conditioner by allowing the wind direction baffle plate that is arranged on the indoor unit exhaust outlet move back and forth at left and right directions, blows out air-conditioning wind to the prescribed limit of along continuous straight runs and regulates and transferred the chamber room air, comprises:
Change the storage device of a plurality of Move Modes of above-mentioned wind direction baffle plate translational speed when being kept at above-mentioned wind direction baffle plate and moving back and forth in the position of regulation;
It is characterized in that, also comprise:
Be configured in the above-mentioned temperature-detecting device of being transferred indoor at least 2 places, chamber;
Move above-mentioned wind direction baffle plate in turn with a plurality of Move Modes limit that is kept in the above-mentioned storage device, the limit measure each Move Mode by the detected mensuration temperature of said temperature checkout gear, and select the selecting arrangement of the pattern that the temperature difference of this mensuration temperature diminishes.
2. the air conditioner of putting down in writing as claim 1 is characterized in that:
Above-mentioned selecting arrangement judges in the detected variation of temperature of above-mentioned each Move Mode whether this Move Mode is suitable according to above-mentioned each temperature-detecting device.
3. as claim 1 or 2 each air conditioners of putting down in writing, it is characterized in that:
Above-mentioned storage device is preserved a plurality of Move Modes that move back and forth scope and each moving range.
4. the air conditioner of putting down in writing as claim 3 is characterized in that:
One of said temperature checkout gear has the position setting device of setting with respect to the relative position of above-mentioned indoor unit;
The position that above-mentioned selecting arrangement correspondence is set by above-mentioned position setting device, selection is kept at the moving range of the above-mentioned wind direction baffle plate in the above-mentioned storage device.
CN98118577A 1997-09-03 1998-09-03 Air conditioner Expired - Fee Related CN1111685C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP238664/97 1997-09-03
JP238664/1997 1997-09-03
JP9238664A JPH1183121A (en) 1997-09-03 1997-09-03 Air conditioner

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CN1210230A CN1210230A (en) 1999-03-10
CN1111685C true CN1111685C (en) 2003-06-18

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Publication number Priority date Publication date Assignee Title
JP2007139227A (en) * 2005-11-15 2007-06-07 Sanyo Electric Co Ltd Air conditioner
JP2009002601A (en) * 2007-06-22 2009-01-08 Panasonic Corp Air-conditioner
CN101694322B (en) * 2009-10-20 2012-08-22 广东美的电器股份有限公司 Air-conditioner control method aiming at different people
JP2014126295A (en) * 2012-12-26 2014-07-07 Fujitsu General Ltd Air conditioner
CN103912962A (en) * 2013-01-08 2014-07-09 海信科龙电器股份有限公司 Air conditioner capable of automatically adjusting air volume and air swinging structure, and control method thereof
CN103900209B (en) * 2014-03-25 2016-12-07 四川长虹电器股份有限公司 A kind of information processing method and air-conditioning
CN104279718A (en) * 2014-11-06 2015-01-14 珠海格力电器股份有限公司 Control method, control device and air conditioner
CN104930662B (en) * 2015-06-25 2017-08-01 广东美的制冷设备有限公司 A kind of accurate air blowing control method and system of air-conditioning

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