CN101825328B - Air conditioner and its control method - Google Patents

Air conditioner and its control method Download PDF

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Publication number
CN101825328B
CN101825328B CN2010101456460A CN201010145646A CN101825328B CN 101825328 B CN101825328 B CN 101825328B CN 2010101456460 A CN2010101456460 A CN 2010101456460A CN 201010145646 A CN201010145646 A CN 201010145646A CN 101825328 B CN101825328 B CN 101825328B
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CN
China
Prior art keywords
air
air conditioner
mentioned
power running
adjustment plate
Prior art date
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Expired - Fee Related
Application number
CN2010101456460A
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Chinese (zh)
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CN101825328A (en
Inventor
冈诚司
铃木徹
中井明纪
长岭光昭
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Daikin Industries Ltd
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Daikin Industries Ltd
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Filing date
Publication date
Priority claimed from JP2003371919A external-priority patent/JP3815470B2/en
Priority claimed from JP2003371920A external-priority patent/JP3815471B2/en
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of CN101825328A publication Critical patent/CN101825328A/en
Application granted granted Critical
Publication of CN101825328B publication Critical patent/CN101825328B/en
Expired - Fee Related legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction 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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • 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
    • F24F2120/12—Position of occupants

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

There are provided an air conditioner capable of controlling a conditioned air blow direction during power operation and a control method for it. The air conditioner (1) includes a control section (60). The control section (60) is connected to a compressor (21), a four-way switching valve (22), decompressor (25), a ROM (41), a RAM (42), a fan motor (13), a flap motor (146), a temperature sensor (43), and an infrared ray sensor (44). The control section (60) performs control of the compressor (21), the four-way switching valve (22), the decompressor (25), the fan motor (13), and the flap motor (146). When an instruction to perform powerful operation is inputted from a remote controller (40), the control section (60) temporarily increases the rotation speed of a cross flow fan (12) and the operation frequency of the compressor (21) so as to increase the air conditioning ability and controls the direction of a horizontal flap (144), considering the direction of people in the room.

Description

Air conditioner and control method thereof
The application is to be on September 27th, 2004, denomination of invention to be the dividing an application of Chinese invention patent application of 200480032127.6 (PCT/JP2004/014074) for " air conditioner and control method thereof ", application number the applying date.
Technical field
The present invention relates to a kind of air conditioner and control method thereof, the interim rising improved the high-power running of air conditioning disposal ability thereby this air conditioner can be carried out the rotating speed that makes fan and the operating frequency of compressor etc.
Background technology
In the past, known have such air conditioner: it was arranged in dwelling house, the building etc., through the air row that will carry out regulating to the indoor indoor comfort that improves.This air conditioner makes the occupant feel comfortable temperature through to indoor discharge cold wind or hot blast indoor temperature being remained on, thereby improves indoor comfort.
Air conditioner has: indoor apparatus of air conditioner, and it is arranged at indoor, and is used to carry out air conditioning; Be arranged at outdoor air-conditioner outdoor unit.And, connecting through refrigerant piping between indoor apparatus of air conditioner and the air-conditioner outdoor unit, air conditioning is carried out through between the cold-producing medium of the refrigerant piping of flowing through and room air, carrying out heat exchange.
In this air conditioner; The air conditioner that particularly has is at cooling operation or when adding heat run etc.; According to indication, thereby carry out the so-called high-power running of the interim raising air conditioning disposal abilities that raise such as the operating frequency that makes compressor and rotation speed of the fan by user input.Through carrying out the indication of high-power running with input such as remote controller, can improve the air handling capacity that for example being used to of turning round freeze and heat in this moment temporarily.
Patent documentation 1: jp patent publication spy opens flat 7-103551 number
Yet, in above-mentioned existing air conditioner, have following problem.
Promptly; As stated, in above-mentioned existing air conditioner, when the input purpose is when carrying out the indication of high-power running; The control that operating frequency and the rotation speed of the fan etc. of compressor are improved; Thereby improve the air conditioning disposal ability, but for the carrying out of this moment the blow-off direction of the air after the air conditioning but do not carry out any control, the trend of advancing of the direction of the wind direction adjustment plate the when blow-off direction of air is carried out the indication of high-power running by input decides.
Therefore; For example; When in refrigeration, imported under the situation of the indication of carrying out high-power running; Air cooler during than common cooling operation is provided to indoor in a large number, if but this air to supplying with the diverse direction of direction at people place, then the user can not feel effectively and carries out high-power running.In addition; In contrast, for example the time imported under the situation of the indication of carrying out high-power running in refrigeration, the air after carrying out air conditioning under the state that disposal ability has raise is provided to indoor; But this air directly blows to the people sometimes; For example, when the high-power running of refrigeration, bring excessive uncomfortable feeling such as creeping chill may for the people in the room.
Summary of the invention
The purpose of this invention is to provide a kind of air conditioner and control method thereof, it can control the blow-off direction that carries out the air after the air conditioning when high-power running.
The air conditioner of first aspect present invention comprises: air conditioning mechanism, and it is used for that indoor air is carried out air conditioning and handles; Wind direction adjustment plate, it is used to adjust the blow-off direction that carries out the air after the air conditioning; Control part, it is used to carry out the interim high-power running that raises of the processing that makes air conditioning mechanism.And control part is adjusted the direction of wind direction adjustment plate when high-power running, so that the direction of air to the people place blows out.
Here, when high-power running, not only improve the disposal ability of the air conditioning mechanism comprise compressor and fan etc., also control blowing to the indoor blow-off direction that carries out the air after the air conditioning.
In existing air conditioner, the just interim disposal ability that improves air conditioning mechanism when high-power running, the blow-off direction of air that will this moment is as the control object.Therefore, the trend of advancing that the direction of wind direction adjustment plate is carried out the direction of the wind direction adjustment plate before the indication of high-power running by input during high-power running decides.So for example, even when refrigeration, carry out under the situation of identical high-power running, according to operational situation before this, the direction of wind direction adjustment plate sometimes also can be different.
So in air conditioner of the present invention, the direction through at high-power running time control wind direction adjustment plate can access following effect.
That is, in air conditioner of the present invention, the direction of control wind direction adjustment plate blows out so that carried out the direction of the air after the air conditioning towards the people place when the indication of the high-power running of input.Like this, imported the user of the indication of high-power running,, can feel the high-power sense of high-power running effectively through the air of direct impression after carrying out air conditioning under the state that the disposal ability of air conditioning mechanism has improved.And, in contrast, in air conditioner of the present invention, can also when the indication of the high-power running of input, adjust plate by the control wind direction, so that the air that carries out after the air conditioning blows out to nobody's direction.Like this, caused sticky feeling of excessive creeping chill in the time of can preventing to bring for example because of cooling operation to indoor people or heating the time directly blow out the discomfort that warm air causes etc.
The air conditioner of second aspect present invention, on the basis of the air conditioner of first aspect present invention, control part is adjusted the direction of wind direction adjustment plate when high-power running, so that the direction of air to the people place blows out.
At this, when importing the indication of high-power running, the direction of control wind direction adjustment plate is so that the direction of air towards the people place of carrying out after the air conditioning blows out.Like this, imported the user of the indication of high-power running,, can feel the high-power sense of high-power running effectively through the air of direct impression after carrying out air conditioning under the state that the disposal ability of air conditioning mechanism has improved.
The air conditioner of third aspect present invention, on the basis of the air conditioner of first aspect present invention, control part is adjusted the direction of wind direction adjustment plate when high-power running, so that air blows out to nobody's direction.
At this, when importing the indication of high-power running, the direction of control wind direction adjustment plate is so that the air that carries out after the air conditioning blows out to nobody's direction.The discomfort that directly blows out warm air when caused sticky feeling of excessive creeping chill in the time of like this, can preventing to bring cooling operation for example or heating and cause etc. to indoor people.
The air conditioner of fourth aspect present invention, on the basis of described air conditioner, when high-power running, the direction of wind direction adjustment plate is fixed aspect the present invention first arbitrary to the third aspect.
At this, when the indication of the high-power running of input, the direction of wind direction adjustment plate is fixed to the direction towards the people place.Like this, can either let the people fully feel and high-power sense in contrast, can also prevent when cooling operation, to bring discomfort to people reliably because of excessive creeping chill.
The air conditioner of fifth aspect present invention, on the basis of described air conditioner, when high-power running, the hunting range of wind direction adjustment plate changes aspect the present invention first arbitrary to the third aspect.
At this, even in the process of wind direction adjustment plate swing, set under the situation of high-power running, wind direction adjustment plate also can change to hunting range and make the hunting range of wind in people's scope.Like this, even air does not directly blow under people's the situation before the high-power running, through the setting of high-power running, air directly blows out to the people, therefore can feel high-power sense.And, in contrast,, also can its hunting range be changed to wind less than the hunting range in people's the scope even in the process that wind direction adjustment plate is swung, set under the situation of high-power running.Like this, directly blow under people's the situation, when high-power running, also can prevent reliably directly to blow out to the people even before high-power running, carry out the air of air conditioning.
The air conditioner of sixth aspect present invention on the basis of the described air conditioner in arbitrary aspect in aspect the present invention first to the 5th, also has the timer of the time that is used to limit high-power running.
At this, also has the timer of the time that is used to limit high-power running.Like this, can improve the refrigeration heating temporarily wait the air conditioning disposal ability.And, when continuous running,, can limit the time of high-power running through timer even be adjusted under near the situation of the direction that is being about to produce dewfall the exhaust outlet in the direction of wind direction adjustment plate.Thus, can prevent near exhaust outlet, to produce dewfall reliably.And, in contrast,, can improve the refrigeration heating temporarily and wait the air conditioning disposal ability through the time that high-power running is carried out in restriction.
The air conditioner of seventh aspect present invention on the basis of the air conditioner of sixth aspect present invention, is set with the time that wind direction adjustment plate is stopped in timer.
At this, in timer, be set with and in high-power operation process, make wind direction adjustment plate in time that predetermined angular stops.Therefore, in high-power operation process, when through the scheduled time, wind direction adjustment plate is swung in the scope that comprises the direction that the people belongs to.
On the basis of the described air conditioner in arbitrary aspect of the air conditioner of eighth aspect present invention in aspect of the present invention first to the 7th, wind direction adjustment plate is the baffle plate that moves up and down.
At this, the direction through the last lower baffle plate in the control wind direction adjustment plate determines whether blowing out to the people.Therefore,, just can easily wind direction be adjusted plate and be adjusted to direction, in contrast, also can adjust plate to wind direction and be adjusted to not direction towards the people towards the people only through blow-off direction is swung up and down.
The air conditioner of nineth aspect present invention on the basis of described air conditioner, also has the sensor that is used for the sensing people aspect the present invention first arbitrary to the eight aspect.
At this, also has the sensor that sensing is positioned at indoor people.Like this, when high-power running, can be reliably wind direction be adjusted to reverse towards the people, in contrast, also can be reliably wind direction be adjusted to not the direction towards the people.
The air conditioner of tenth aspect present invention on the basis of the described air conditioner in arbitrary aspect in aspect the present invention first to the 9th, when cooling operation, carries out the adjustment of the direction of wind direction adjustment plate under the situation of having set high-power running.
At this, to the control of the direction of wind direction adjustment plate, particularly only when cooling operation, imported under the situation of high-power running indication and carried out when carrying out high-power running.That is, when when in refrigeration, carrying out high-power running, control wind direction adjustment plate direction makes cold wind directly blow to the people.Like this, through bringing creeping chill, can feel high-power sense more effectively to the people.And in contrast, when freezing high-power running, the direction that also can control wind direction adjustment plate makes cold wind directly not blow to the people.Like this, can prevent to bring discomfort to people because of excessive creeping chill.
The control method of the present invention the tenth air conditioner on the one hand is the control method of such air conditioner, and this air conditioner comprises: air conditioning mechanism, and it is used for that indoor air is carried out air conditioning and handles; Wind direction adjustment plate, it is used to adjust the blow-off direction of air, and above-mentioned air conditioner is carried out the interim high-power running that raises of the disposal ability that makes above-mentioned air conditioning mechanism.And, when high-power running, adjust the direction of wind direction adjustment plate according to the direction at people place.
At this, when high-power running, the disposal ability of the air conditioning mechanism that comprises compressor and fan etc. is improved, also the blow-off direction that carries out the air after the air conditioning of the indoor supply of subtend is controlled.
In the control method of existing air conditioner, the just interim disposal ability that improves air conditioning mechanism when high-power running, the blow-off direction of air that will this moment is as the control object.Therefore, the direction of the wind direction adjustment plate during high-power running is decided by the trend of advancing of the direction of the wind direction adjustment plate before the high-power running indication of input.Therefore, for example, even when refrigeration, carry out under the situation of identical high-power running, according to operational situation before this, the direction of wind direction adjustment plate sometimes also can be different.
So, in the control method of air conditioner of the present invention,, can obtain effect as follows through also controlling the direction of wind direction adjustment plate when the high-power running.
That is, in the control method of air conditioner of the present invention, the direction of control wind direction adjustment plate when importing the indication of high-power running is so that the direction of air to the people place of carrying out after the air conditioning blows out.Like this, imported the user of the indication of high-power running, carried out the air after the air conditioning improving under the state of disposal ability, can feel the high-power sense of high-power running effectively through direct impression.And in contrast, in the control method of air conditioner of the present invention, the direction of control wind direction adjustment plate when importing the indication of high-power running is so that the air that carries out after the air conditioning blows out to nobody's direction.Like this, can prevent that for example when cooling operation, giving indoor people because of excessive creeping chill brings discomfort.
The control method of the air conditioner of the 12 aspect of the present invention, on the basis of the control method of the present invention the tenth air conditioner on the one hand, when high-power running, the direction of adjustment wind direction adjustment plate so that the direction of air to the people place blow out.
In the control method of air conditioner of the present invention, the direction of control wind direction adjustment plate when the indication of the high-power running of input is so that the direction of air to the people place of carrying out after the air conditioning blows out.Like this, only imported the user of the indication of high-power running,, can feel the high-power sense of high-power running effectively through the air of direct impression after carrying out air conditioning under the state that disposal ability has improved.
The control method of the air conditioner of the present invention the 13 aspect, on the basis of the control method of the present invention the tenth air conditioner on the one hand, when high-power running, the direction of adjustment wind direction adjustment plate so that air blow out to nobody's direction.
In the control method of air conditioner of the present invention, when the indication of the high-power running of input, the direction of control wind direction adjustment plate is so that the air that carries out after the air conditioning blows out to nobody's direction.Like this, can prevent that for example when cooling operation, giving indoor people because of excessive creeping chill brings discomfort.
Description of drawings
Fig. 1 is the outside drawing of the air conditioner that an embodiment of the invention adopted.
Fig. 2 is the sketch map of refrigerant loop.
Fig. 3 is the profile along the A-A line of indoor set.
B portion enlarged drawing when Fig. 4 is the baffle plate level.
Fig. 5 is the B portion enlarged drawing of baffle plate down the time.
B portion enlarged drawing when Fig. 6 stops for running.
Fig. 7 is the block diagram of expression control part.
Fig. 8 is the sketch map of the air blow-off direction of the indoor set of expression first embodiment.(a) when being illustrated in common cooling operation, from the sketch map of the direction of indoor set blow out air.(b) when being illustrated in high-power cooling operation, from the sketch map of the direction of indoor set blow out air.
Fig. 9 is the sketch map of the air blow-off direction of the indoor set of the variation (B) of expression first embodiment.(a) when being illustrated in common cooling operation, the sketch map of the hunting range of horizontal baffle.(b) when being illustrated in high-power cooling operation, the sketch map of the hunting range of horizontal baffle.
Figure 10 is the sketch map of the air blow-off direction of the indoor set of expression second embodiment.(a) be when common cooling operation, from the sketch map of the direction of indoor set blow out air.(b) be when high-power cooling operation, from the sketch map of the direction of indoor set blow out air.
Figure 11 is the sketch map of the air blow-off direction of the indoor set of the variation (A) of expression second embodiment.(a) when being illustrated in common cooling operation, the sketch map of the hunting range of horizontal baffle.(b) when being illustrated in high-power cooling operation, the sketch map of the hunting range of horizontal baffle.
Label declaration
1: air conditioner; 2: indoor set; 3: off-premises station; 11: indoor heat converter (air conditioning mechanism); 12: cross flow fan (air conditioning mechanism); 13: fan motor; 21: compressor (air conditioning mechanism); 41:ROM; 42:RAM; 44: infrared ray sensor (sensor); 45: timer; 60: control part; 144: horizontal baffle (going up lower baffle plate); S: indoor.
The specific embodiment
(first embodiment)
< structure of air conditioner >
The outside drawing of the air conditioner 1 that an embodiment of the invention of representing Fig. 1 adopt.
Air conditioner 1 is such device: the adjusting air row that will carry out refrigeration, heating or dehumidifying etc. is to indoor, with the air in the conditioning chamber.This air conditioner 1 has: be installed in the indoor set 2 on indoor metope top and be arranged on outdoor off-premises station 3.Off-premises station 3 has outdoor unit of air conditioner 5, and this outdoor unit of air conditioner 5 is used for receiving room outer heat-exchanger (air conditioning mechanism) and outdoor fan (air conditioning mechanism) etc.
In indoor set 2, taken in indoor heat exchanger (air conditioning mechanism), in outdoor unit of air conditioner 5, taken in outdoor heat converter, each heat exchanger and the refrigerant piping 6 formation refrigerant loops that connect these heat exchangers.
Fig. 2 is illustrated in the system diagram of the refrigerant loop that uses in the air conditioner 1.
Be provided with indoor heat converter 11 in the indoor set 2.This indoor heat converter 11 comprises: two ends in the longitudinal direction turn back repeatedly heat-transfer pipe and run through a plurality of fin that are inserted with heat-transfer pipe.This indoor heat converter 11 carries out heat exchange with the air that is contacted.
And, in indoor set 2, being provided with cross flow fan (air conditioning mechanism) 12, this cross flow fan 12 is used to suck room air, and will have carried out heat-exchanged air with indoor heat converter 11 and blow to indoor.Cross flow fan 12 constitutes cylindric, and on its side face, is provided with blade along the rotating shaft direction.And cross flow fan 12 generates air stream on the direction of intersecting with rotating shaft.This cross flow fan 12 is by fan motor 13 driven in rotation that are arranged in the indoor set 2.
In outdoor unit of air conditioner 5, be provided with compressor (air conditioning mechanism) 21, four-way switching valve 22, gas-liquid separator 23, outdoor heat converter 24, pressure reducer 25 (with reference to Fig. 2).Four-way switching valve 22 is connected with the exhaust end of compressor 21.Gas-liquid separator 23 is connected with the suction side of compressor 21.Outdoor heat converter 24 is connected with four-way switching valve 22.Pressure reducer 25 is the electric expansion valve that is connected with outdoor heat converter 24.And pressure reducer 25 is connected with pipe arrangement 31 with liquid stop valve 27 through filter 26, and is connected with an end of indoor heat converter 11 through pipe arrangement 31.In addition, four-way switching valve 22 is connected with pipe arrangement 32 through gas stop valve 28, and is connected with the other end of indoor heat converter 11 through this pipe arrangement 32.These pipe arrangements 31,32 are equivalent to the refrigerant piping 6 among Fig. 1.
Fig. 3 representes the profile of indoor set 2.Above-mentioned indoor heat converter 11 is accommodated in the shell 14 of indoor set 2 with cross flow fan 12.Indoor heat converter 11 is mounted to the place ahead, top and the top, rear portion that surrounds cross flow fan 12.Indoor heat converter 11 makes through the driving of cross flow fan 12 and passes through in cross flow fan 12 sides from suction inlet 142 inhaled airs, and with carry out heat exchange through the inner cold-producing medium of heat-transfer pipe.
And, below indoor heat converter 11, be provided with drain pan 141, the water droplet that produces on the surface of indoor heat converter 11 when drain pan 141 is used to receive heat exchange.On this drain pan 141, be equipped with and be used for the water droplet that receives is discharged to outside drainpipe (not shown).Drain pan 141 constitutes this water droplet of reception and through drainpipe water droplet is discharged.
Be provided with the suction inlet 142 that constitutes by a plurality of slit-shaped openings on the top of shell 14.Be provided with exhaust outlet 143 in the bottom of shell 14, this exhaust outlet 143 is made up of opening long on the length direction of indoor set 2.And, being provided with horizontal baffle (going up lower baffle plate) 144 at exhaust outlet 143 places, this horizontal baffle 144 is used for confirming the blow-off direction to indoor air through cross flow fan 12 rows.It can be the center rotation with the axle 145 of the length direction that is parallel to indoor set 2 that this horizontal baffle 144 is arranged to.Horizontal baffle 144 through after the flap motor 146 (with reference to Fig. 7) stated rotate, thereby can confirm the blow-off direction of air.As shown in Figure 4, roughly under the situation of horizontal direction, the air after the adjusting roughly blows out to horizontal direction 144a in the end of horizontal baffle 144.And, as shown in Figure 5, when the end of horizontal baffle 144 144a roughly under the situation of vertical below, the air after the adjusting roughly blows out towards vertical below.In addition, as shown in Figure 6, when air conditioner 1 shut down, the end 144a of horizontal baffle 144 was connected to the end of shell 14.In this case, horizontal baffle 144 almost completely hides exhaust outlet 143.
In outdoor unit of air conditioner 5, be provided with propeller type fan 29, this propeller type fan 29 is used for being discharged to the outside with having carried out heat-exchanged air at outdoor heat converter 24.This propeller type fan 29 is by propeller type fan motor 30 driven in rotation.
< control part >
Also be provided with control part 60 in the air conditioner 1.
As shown in Figure 7, control part 60 is connected with compressor 21, four-way switching valve 22, pressure reducer 25, ROM 41, RAM 42, fan motor 13, flap motor 146, temperature sensor 43 and infrared ray sensor 44.And, communicate between control part 60 and the remote controller 40, and pass through time in the high-power running of timer 45 restrictions of program internal operation.In addition, 60 pairs of compressors 21 of control part, four-way switching valve 22, pressure reducer 25, fan motor 13, flap motor 146 are controlled.
Storing control program and various parameter in ROM 41.Parameters such as the position of horizontal baffle 144, hunting range when in ROM 41, also storing the setting air quantity when carrying out various the setting and setting high-power running.
Set air quantity and be the running air quantity of the air quantity of the air of confirming to blow out from exhaust outlet 143, particularly, any in " gentle breeze ", " gentle breeze ", " faint ", " weak wind ", " medium ", " high wind ".The minimum running air quantity of " gentle breeze " expression air quantity, the maximum running air quantity of " high wind " expression air quantity.Control part 60 according to from after state the signal of branch remote controller 40, select to set any in the air quantity, and be stored in selected setting air quantity among the RAM 42.And control part 60 makes fan motor 13 rotations, so that the row of the air after the adjusting that air quantity is corresponding with selected setting air quantity is to indoor.
Remote controller 40 is operating means, and it is used for indoor people's indication is conveyed to air conditioner 1 and makes air conditioner 1 carry out work according to indoor people's requirement.Indoor people can use a teleswitch and 40 carry out following indication input etc.: set room temperature, select horizontal baffle 144 the swing function ON/OFF (ON/OFF) and select weave mode, input instruction to carry out high-power running etc.
At this, so-called high-power running is meant that the indication according to user's input improves the rotating speed of cross flow fan 12 and the operating frequency of compressor 21 etc. temporarily, thereby can improve the air conditioning disposal ability temporarily.In addition, about this high-power running, will set forth in detail in the back.
These indications send to control part 60 from remote controller 40, and are used to control each structure.In addition, these indications send to the RAM 42 from control part 60, and are stored among the RAM42 with the sensing result to the people that obtains through infrared ray sensor 44 (information of the direction that belongs to about the people).
In addition, can use a teleswitch 40 set air conditioner 1 work target temperature T.This target temperature T sends to control part 60 from remote controller 40, and is used to control various piece.And this target temperature T sends to RAM 42 and is stored in the RAM 42 from control part 60.For example, when cooling operation, be lower than in room temperature under the situation of temperature more than or equal to predetermined temperature (t1) of target temperature T, control part 60 shuts down compressor 21, to suppress the power consumption of air conditioner 1.On the other hand, when compressor 21 stops, room temperature surpasses under the situation of temperature more than or equal to predetermined temperature t2 of target temperature T, control part 60 makes compressor 21 runnings once more.
Temperature sensor 43 is arranged in the indoor set 2, is used to measure indoor temperature.Temperature sensor 43 sends to control part 60 with measured room temperature.
Infrared ray sensor (sensor) 44 is arranged on the near surface of indoor set 2, be used for the indoor people of sensing the people is carried out the sensor of sensing.This infrared ray sensor 44 sends to control part 60 with the relevant information of the direction at the people place that senses.In addition, carry out sensing, can carry out sensing all the time, also can whenever carry out sensing at a distance from the scheduled time about using 44 couples of people of infrared ray sensor.
< the high-power running of this air conditioner >
Below, to cooling operation and the high-power running of the air conditioner 1 when adding heat run describe.
For example; When the user during at cooling operation when the indication of high-power running is carried out in remote controller 40 inputs; In order to improve the air conditioning disposal ability; 60 pairs of fan motors 13 of the control part of air conditioner 1 are controlled so that the rotating speed of cross flow fan 12 improves, and control part 60 is also controlled the operating frequency of compressor 21.
In the air conditioner 1 of this embodiment, particularly under the situation of the input of the indication that has received high-power running, on the basis of above-mentioned control, control part 60 is also controlled the direction of horizontal baffle 144.For example, as figure (8) shown in, when common cooling operation, carried out the air after the air conditioning roughly along continuous straight runs be blown out to indoor S.Here; Shown in Fig. 8 (b), when importing the indication of high-power running, according to sensing result from infrared ray sensor 44; Control flap motor 146 is adjusted the direction of horizontal baffle 144, blows out so that carried out the direction of air to the people place of heat exchange at indoor heat converter 11.
Thus; The direction of horizontal baffle 144 is controlled so as to: the input high-power running indication before running the time; No matter horizontal baffle 144 is towards which direction, and when the indication of the high-power running of input, the direction of horizontal baffle 144 becomes the direction that belongs to towards the people all the time.Therefore, according to the input of the indication of high-power running, the user carries out the air after the air conditioning through direct impression, can feel the high-power sense that high-power running brought effectively.
When adding heat run, this high-power running is carried out too.
And high-power running is used for improving the air conditioning disposal ability of air conditioner 1 temporarily, and limits the time of carrying out high-power running through timer 45.Timer 45 begins Measuring Time from the input that control part 60 receives from the indication of user's high-power running, when having passed through the scheduled time, sends signals to control part 60.When control part 60 when timer 45 receives signal, control part 60 is just controlled fan motor 13, compressor 21 and flap motor 146, makes them turn back to original common operating condition, thereby finishes high-power running, turns back to common operating condition.
In addition; In the air conditioner 1 of this embodiment, input has such time to be used as setting-up time in the timer 45, promptly; Even under near the situation of air refrigeration directly blows to exhaust outlet 143 during high-power running, can be near exhaust outlet 143 yet time of dewfall.
Therefore, in the high-power operation process of refrigeration, no matter horizontal baffle 144 is towards which direction, through time restriction is set, can both prevent near exhaust outlet 143, to produce the problem of dewfall reliably.
< characteristic of this air conditioner >
(1)
When the indication of high-power running is carried out in remote controller 40 input, the rotary speed that the air conditioner of first embodiment 1 is interim to improve cross flow fan 12 and the operating frequency of compressor 21 etc., thereby raising air conditioning disposal ability, and control its wind direction.
In existing air conditioner, when importing the indication of this interim raising disposal ability, also improve the rotating speed of fan and the operating frequency of compressor etc.Yet, because control this moment, so wind direction was decided by the trend of advancing of the direction of the horizontal baffle before the indication of the high-power running of input to the blow-off direction of the air of indoor supply.
Therefore; In the air conditioner 1 of this embodiment; Through in the interim side that also controls horizontal baffle 144 when improving disposal ability promptly in so-called high-power running with, can blow out to the direction of hope at the air after carrying out air conditioning under the state that running ability improves.
Particularly, in the air conditioner 1 of this embodiment, the direction of control horizontal baffle 144 is so that the direction of air towards indoor people place of carrying out after the air conditioning blows out.
Like this, when having set high-power running by the user, the air that carries out after the air conditioning blows out to the user, therefore, and the high-power sense the when user can feel high-power running effectively.
(2)
The air conditioner 1 of first embodiment uses infrared ray sensor 44 to come the direction at the indoor people place of sensing.
Like this, can the direction of horizontal baffle 144 be adjusted to: no matter the people is where indoor, and the people can both directly blow to wind effectively.
(3)
The air conditioner 1 of first embodiment fixes the direction of horizontal baffle 144 when the indication of the high-power running of input, and the direction of air to the people place of carrying out after the air conditioning blown out.
Like this, the high-power sense in the time of can making indoor user feel high-power running effectively.
(4)
The air conditioner 1 of first embodiment uses timer 45 to limit the time of carrying out high-power running.
Like this, can high-power running control be become the running of interim raising air handling capacity.
(5)
The air conditioner 1 of first embodiment is set the setting-up time of timer 45 for: near the time that the exhaust outlet 143 of indoor set 2, does not produce dewfall.
Usually, when when refrigeration high-power running, when horizontal baffle 144 during towards the direction at people place, the air that carries out after the air conditioning also can blow near the exhaust outlet sometimes.In this case, when blowing out cold air so for a long time, possibly near exhaust outlet, produce dewfall.
Therefore, in air conditioner 1 of the present invention,, can prevent near exhaust outlet 143, to produce dewfall reliably through limiting horizontal baffle 144 towards the time of this direction.
(6)
The air conditioner 1 usage level baffle plate 144 of first embodiment is controlled the blow-off direction to the air of indoor supply.
Like this, compare, control, the direction blow out air that can easily belong to the people through the horizontal baffle 144 that uses the wind direction of adjusting above-below direction with the situation of the direction of controlling vertical baffle.
< variation of first embodiment >
More than, an embodiment of the invention are illustrated, but the present invention is not limited thereto, in the scope that does not break away from main idea of the present invention, can carry out various changes.
(A)
In the first embodiment, give an example such situation has been described: the direction of using infrared ray sensor 44 to come sensing people place, and the air after when this direction blows out in high-power running, carrying out air conditioning.Yet the present invention is not limited thereto.For example, also can not use sensor, the air that carries out after the air conditioning is blown out towards the particular range that the supposition people belongs to the place.
And, about sensor, so long as can the sensing people sensor in place at place, then be not limited to infrared ray sensor, can also use other sensors.
(B)
In the first embodiment, give an example and explained that the direction that when high-power running, makes horizontal baffle 144 is fixed into the situation towards the direction at people place.Yet the present invention is not limited thereto.For example; Shown in Fig. 9 (a); When common cooling operation, when horizontal baffle 144 in general horizontal direction and under the situation of swinging between the horizontal direction direction a little down, when high-power running; Shown in Fig. 9 (b), horizontal baffle 144 is swung under these circumstances: hunting range is expanded into the direction that comprises that the people belongs to.In this case, the user also can directly feel the air that when high-power running, blows out, and is therefore the same with the situation that is fixed into horizontal baffle 144 direction that belongs to towards the people, also can let the user feel high-power sense effectively.
(C)
In the first embodiment, give an example such situation has been described: the direction of control horizontal baffle 144, and when high-power running, make the air that carries out air conditioning blow to indoor in the direction of above-below direction to the people place.Yet the present invention is not limited thereto.For example, also can use vertical baffle on left and right directions, to control wind direction, both control wind direction also can to use vertical baffle and horizontal baffle 144.
(D)
In the first embodiment; Give an example such situation has been described: when no matter when refrigeration, still heating; Under the situation of having imported the indication of carrying out high-power running, the direction of control horizontal baffle 144 is so that the direction of air to the people place of carrying out after the air conditioning blows out.Yet the present invention is not limited thereto.For example, also can be constrained to: have only under the situation of the indication of when in refrigeration, importing high-power running, the direction of control horizontal baffle 144 is so that the direction of air to the people place of carrying out after the air conditioning blows out.
Like this, let the user in the high-power running in when refrigeration, feel creeping chill, thus the high-power sense can further feel high-power running effectively the time.
(E)
In addition, in the first embodiment, give an example and explained the time of limiting the high-power running of execution through timer 45.Yet the present invention is not limited thereto.For example, also can in timer 45, set: the time of the direction of fixing horizontal baffle plate 144 in high-power running.In this case, also can carry out such control: horizontal baffle 144 fixing at a predetermined angle in high-power running is being swung through after being set in the binding hours in the timer 45.
(second embodiment)
The difference of the air conditioner of the air conditioner of second embodiment and first embodiment is: control part 60 is adjusted the direction of horizontal baffle 144 through control flap motor 146, so that the direction of air to the people place of carrying out after the heat exchange process (air conditioning) through indoor heat converter 11 blows out.So the action of the air conditioner during here only to high-power running describes.
< the high-power running of air conditioner >
Below, at cooling operation and the high-power running of the air conditioner 1 when adding heat run describe.
For example; When the user during at cooling operation when the indication of high-power running is carried out in remote controller 40 inputs; In order to improve the air conditioning disposal ability, the control part 60 control fan motors 13 of air conditioner 1 are to improve the rotating speed of cross flow fan 12; And control part 60 is also controlled the operating frequency of compressor 21.
In the air conditioner 1 of second embodiment, particularly under the situation of the input of the indication that receives high-power running, on the basis of illustrated in the first embodiment control, the direction of control part 60 control horizontal baffles 144.For example, when cooling operation, shown in Figure 10 (a), carry out air after the air conditioning to blowing to indoor S from general horizontal direction direction a little down.At this moment; When the indication of high-power running is imported; Shown in Figure 10 (b); According to sensing result, adjust the direction of horizontal baffle 144 through control flap motor 146, so that the direction of air to the people place of carrying out after the heat exchange process (air conditioning) through indoor heat converter 11 blows out from infrared ray sensor 44.
Like this; The direction of horizontal baffle 144 is controlled to: the input high-power running indication before running the time; No matter horizontal baffle 144 is towards which direction, and when the indication of the high-power running of input, the direction of horizontal baffle 144 becomes the direction that belongs to towards the people all the time.Thereby even under the situation of the indication of having imported high-power running, the occupant can not feel excessive cold because of refrigeration the time directly blows to wind yet, thereby can feel pleasant indoor.
This high-power operating at when adding heat run carried out similarly.
And high-power running is the running that is used for temporarily improving the air handling capacity of air conditioner 1, carries out the time of high-power running and is limited by timer 45.The input that these timer 45 slave controllers 60 receive from user's high-power running indication begins Measuring Time, and through the scheduled time time, this timer 45 sends signal to control part 60.When timer 45 receives signal, control part 60 control fan motor 13, compressor 21 and flap motors 146 so that they turn back to original common operating condition, thereby finish high-power running, turn back to common operating condition.
< characteristic of air conditioner >
(1)
The air conditioner 1 of second embodiment when the indication of high-power running is carried out in remote controller 40 input, improves the rotary speed of cross flow fan 12 and the operating frequency of compressor 21 etc. temporarily, with raising air conditioning disposal ability, and controls its wind direction.
In existing air conditioner, when the indication of this interim raising disposal ability of input, also improve rotating speed and the compressor operation frequency of fan etc.Yet at this moment not controlling to the blow-off direction of the air of indoor supply, therefore, wind direction is decided by the trend of advancing of the direction of the horizontal baffle 144 before the indication of the high-power running of input.Its result, after high-power running began, horizontal baffle 144 was towards the direction at people place sometimes, and the air that carries out air conditioning directly blows to the people, can bring uncomfortable feeling to the people.
So; In the air conditioner 1 of this embodiment; Through in the interim direction of also controlling horizontal baffle 144 when improving the so-called high-power running of disposal ability, the air after carrying out air conditioning under the state that running ability has improved is blown out to the direction of hope.
Particularly, in the air conditioner 1 of this embodiment, the direction of control horizontal baffle 144 is avoided the direction at people place and is blown out so that carry out air after the air conditioning.
Like this, when the user set high-power running, the air that carries out after the air conditioning blew out to the direction except the direction at people place, for example near ceiling, waited to blow out.Thereby, for example,, can prevent that also cold air from directly blowing to the people even when refrigeration, be provided with under the situation of high-power running, therefore, under the situation of the sticky feeling that can cause, carry out high-power running not bringing excessive creeping chill.
(2)
The air conditioner 1 of second embodiment uses infrared ray sensor 44 to come the direction at the indoor people place of sensing.
Like this, no matter the people is where indoor, can both be reliably the direction of horizontal baffle 144 be adjusted to make wind can directly not blow to the people.
(3)
The air conditioner 1 of second embodiment, when the indication of the high-power running of input, the direction of fixing horizontal baffle plate 144 makes the air that carries out after the air conditioning blow out to nobody's direction.
Like this, for example, can prevent to bring the discomfort because of excessive cold of directly blowing to cold wind and causing in when refrigeration to indoor user.
(4)
The air conditioner 1 of second embodiment uses the timer 45 at the program internal operation to limit the time of carrying out high-power running.
Like this, can high-power running be controlled to the running of interim raising air conditioning disposal ability.
(5)
The air conditioner 1 usage level baffle plate 144 of second embodiment is controlled the blow-off direction to the air of indoor supply.
Like this, compare with the situation of control vertical baffle, the horizontal baffle 144 that is used to adjust the wind direction of above-below direction through use is controlled, and air is blown out to nobody's direction.
< variation of second embodiment >
More than, an embodiment of the invention have been described, but the present invention is not limited to above-mentioned embodiment, in the scope that does not break away from main idea of the present invention, can carry out various changes.
(A)
In second embodiment, give an example such situation has been described: when high-power running, the direction of horizontal baffle 144 is fixed into the direction towards nobody.Yet the present invention is not limited thereto.For example; Shown in Figure 11 (a); When cooling operation, at horizontal baffle 144 in the horizontal direction and under the situation of swinging between the direction of a little number of degrees down, when high-power running from horizontal direction; Shown in Figure 11 (b), horizontal baffle 144 is swung in the scope that does not comprise the direction that the people belongs to.In this case; Because the user can directly not blow to the air that when high-power running, blows out; Therefore make its situation the same with horizontal baffle 144 is fixed into, also can under the situation that can not bring discomfort to the user, carry out high-power running towards nobody's direction.
(B) in second embodiment, give an example such situation has been described:, so that when high-power running, the air that carries out after the air conditioning is blown out on above-below direction to indoor towards nobody's direction through the direction of control horizontal baffle 144.Yet the present invention is not limited thereto.For example, also can use vertical baffle or usage level baffle plate 144 and vertical baffle to come to control on the left and right directions wind direction.
(C)
In second embodiment; Give an example such situation has been described: no matter be when refrigeration or when heating; Under the situation of having imported the indication of carrying out high-power running, the direction of control horizontal baffle 144 is so that the air that carries out after the air conditioning blows out to nobody's direction.Yet the present invention is not limited thereto.For example also can be constrained to: have only under the situation of the indication of when in refrigeration, having imported high-power running, the direction of control horizontal baffle 144 is so that the air that carries out after the air conditioning blows out towards nobody's direction.
The present invention owing to can reach can control the effect of the blow-off direction that carries out the air after the air conditioning when high-power running, therefore can be applicable to when cooling operation and can carry out the air conditioner of high-power running when adding heat run.

Claims (8)

1. an air conditioner (1), this air conditioner comprises:
Air conditioning mechanism (11,12,21), this air conditioning mechanism are used for that indoor air is carried out air conditioning to be handled;
Wind direction adjustment plate (144), this wind direction adjustment plate are used to adjust the blow-off direction that carries out the air after the above-mentioned air conditioning;
Control part (60), this control part can be carried out the interim high-power running that raises of the disposal ability that makes above-mentioned air conditioning mechanism (11,12,21),
For above-mentioned control part (60); When common cooling operation; Above-mentioned wind direction adjustment plate (144) is swung near general horizontal direction; When the indication input that above-mentioned high-power running is arranged, above-mentioned wind direction adjustment plate (144) is swung: make the hunting range of above-mentioned wind direction adjustment plate (144) be expanded into the direction that comprises that the people belongs under following situation.
2. air conditioner according to claim 1 (1) is characterized in that,
This air conditioner also has the sensor (44) that is used for the sensing people,
Above-mentioned control part changes the hunting range of above-mentioned wind direction adjustment plate (144) according to the information from the sensor, so that above-mentioned wind direction adjustment plate (144) is swung in the scope that comprises the direction that the people belongs to.
3. air conditioner according to claim 1 (1) is characterized in that,
This air conditioner also has the sensor (44) that is used for the above-mentioned people of sensing,
Above-mentioned control part is according to the hunting range of controlling above-mentioned wind direction adjustment plate from the information of the sensor.
4. air conditioner according to claim 1 and 2 (1) is characterized in that,
This air conditioner also has the timer (45) of the time of the above-mentioned high-power running of restriction.
5. air conditioner according to claim 4 (1) is characterized in that,
In above-mentioned timer (45), be set with: the time that above-mentioned wind direction adjustment plate (144) is stopped.
6. air conditioner according to claim 4 (1) is characterized in that,
Process is during the scheduled time in above-mentioned high-power running, and above-mentioned control part is swung above-mentioned wind direction adjustment plate in the scope that comprises the direction that the people belongs to.
7. according to each described air conditioner (1) in the claim 1 to 3, it is characterized in that,
Baffle plate and the vertical baffle plate that move of above-mentioned wind direction adjustment plate (144) for moving up and down.
8. the control method of an air conditioner (1), above-mentioned air conditioner (1) comprising: air conditioning mechanism (11,12,21), this air conditioning mechanism are used for that indoor air is carried out air conditioning to be handled; Wind direction adjustment plate (144); This wind direction adjustment plate is used to adjust the blow-off direction that carries out the air after the above-mentioned air conditioning; Above-mentioned air conditioner (1) can be carried out the interim high-power running that raises of the disposal ability that makes above-mentioned air conditioning mechanism (11,12,21), and the control method of said air conditioner (1) comprising:
When common cooling operation; Above-mentioned wind direction adjustment plate (144) is swung near general horizontal direction; When the indication input that above-mentioned high-power running is arranged; Adjust the direction of above-mentioned wind direction adjustment plate (144), blow out so that the hunting range of above-mentioned wind direction adjustment plate (144) is expanded into the direction of air to the people place.
CN2010101456460A 2003-10-31 2004-09-27 Air conditioner and its control method Expired - Fee Related CN101825328B (en)

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