JP2004225948A - Air conditioner and control method of air conditioner - Google Patents

Air conditioner and control method of air conditioner Download PDF

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Publication number
JP2004225948A
JP2004225948A JP2003011767A JP2003011767A JP2004225948A JP 2004225948 A JP2004225948 A JP 2004225948A JP 2003011767 A JP2003011767 A JP 2003011767A JP 2003011767 A JP2003011767 A JP 2003011767A JP 2004225948 A JP2004225948 A JP 2004225948A
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JP
Japan
Prior art keywords
rotation speed
operating frequency
indoor fan
air conditioner
fan
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.)
Pending
Application number
JP2003011767A
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Japanese (ja)
Inventor
Taisei Amano
Hiroshi Arafune
Koichi Matsumoto
Kazuya Sugiyama
泰声 天野
宏 新船
和也 杉山
公一 松本
Original Assignee
Sanyo Electric Air Conditioning Co Ltd
Sanyo Electric Co Ltd
三洋電機株式会社
三洋電機空調株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Air Conditioning Co Ltd, Sanyo Electric Co Ltd, 三洋電機株式会社, 三洋電機空調株式会社 filed Critical Sanyo Electric Air Conditioning Co Ltd
Priority to JP2003011767A priority Critical patent/JP2004225948A/en
Publication of JP2004225948A publication Critical patent/JP2004225948A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/6806Driving mechanisms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/001Accessories not otherwise provided for
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/835Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
    • A01D34/90Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator
    • A01D34/902Ergonomic provisions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00Hand carts having only one axis carrying one or more transport wheels; Equipment therefor

Abstract

<P>PROBLEM TO BE SOLVED: To prevent dew condensation even in an air conditioner not having a refrigerant circuit of a capillary tube not having an electric expansion valve nor a humidity sensor. <P>SOLUTION: An indoor control part 20 automatically controls a rotating frequency of an indoor fan through an indoor fan motor 17M. In parallel therewith, an outdoor control part 19 determines the operating frequency within a setting range of the operating frequency having an upper limit of the operating frequency of a compressor to prevent dew condensation every range of rotating frequency of the indoor fan 17. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an operation control method of an air conditioner, and more particularly to a technique for preventing dew condensation at an outlet for supplying cooled air to a room during a cooling operation for cooling the room.
[0002]
[Prior art]
During the cooling operation of the air conditioner, if the humidity in the room is high or the temperature of the air supplied to the room is too low, dew will form around the air outlet and condensed water will drip in the room or white fog will be generated There were problems such as.
[0003]
In order to solve the above-mentioned problems, Patent Document 1 discloses that a target discharge temperature is corrected based on a discharge temperature, a suction temperature, and a coil temperature during operation of a compressor, and electric expansion is performed in response to drying of a heat exchanger of an indoor unit. There is disclosed a technique for preventing dew condensation due to drying of a heat exchanger by controlling a valve.
[0004]
Further, Patent Document 2 discloses that the maximum operating frequency of a compressor is regulated based on a comparison result by detecting a blowing amount, a room temperature, an outside air temperature, and a humidity of a blowing device and comparing the detected values with corresponding set values. Discloses a technique for suppressing dew condensation due to blowing of cool air.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-292013 [Patent Document 2]
JP 2001-65552 A
[Problems to be solved by the invention]
However, the technique described in Patent Document 1 has a problem that it can be applied only to an air conditioner equipped with an electric expansion valve.
[0007]
Further, the technology described in Patent Document 2 requires a humidity sensor, and there is a possibility that correct control cannot be performed when a sensor circuit fails or the like.
[0008]
Therefore, an object of the present invention is to provide an air conditioner and an air conditioner that can prevent dew condensation even in a refrigerant circuit of a capillary tube without an electric expansion valve or an air conditioner without a humidity sensor. It is to provide a control method.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, an air conditioner including an indoor fan, an indoor heat exchanger, and a compressor includes: a rotation speed control unit that automatically controls the rotation speed of the indoor fan; An operating frequency setting unit that sets the operating frequency within an operating frequency setting range in which an upper limit of the operating frequency of the compressor for preventing dew condensation is set.
[0010]
According to the above configuration, the rotation speed control unit performs automatic control of the rotation speed of the indoor fan.
[0011]
In parallel with this, the operating frequency setting unit sets the operating frequency within the operating frequency setting range in which the upper limit of the operating frequency of the compressor for preventing dew condensation is set for each indoor fan speed range.
[0012]
In this case, the operating frequency setting unit may set the operating frequency as if there is no upper limit of the operating frequency until a predetermined time has elapsed from the start of the operation.
[0013]
The operating frequency setting unit may include, when the rotation speed of the indoor fan is equal to or lower than a predetermined low frequency reference rotation speed, the rotation frequency range of the indoor fan to which the rotation speed equal to or lower than the low frequency reference rotation speed after a predetermined time has elapsed. May be set to the operating frequency corresponding to
[0014]
The method for controlling an air conditioner including an indoor fan, an indoor heat exchanger, and a compressor includes a rotation speed control step of automatically controlling a rotation speed of the indoor fan, and a dew condensation for each rotation speed range of the indoor fan. An operating frequency setting step of setting the operating frequency within an operating frequency setting range in which an upper limit of the operating frequency of the compressor for preventing the compressor is set.
[0015]
In this case, in the operation frequency setting step, the operation frequency may be set assuming that there is no upper limit of the operation frequency until a predetermined time elapses from the start of operation.
[0016]
The operating frequency setting step may include, when the rotation speed of the indoor fan is equal to or lower than a predetermined low-frequency reference rotation speed, a rotation speed range of the indoor fan to which a rotation speed equal to or lower than the low-frequency reference rotation speed after a predetermined time has elapsed. May be set to the operating frequency corresponding to
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a preferred embodiment of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 is a refrigerant circuit diagram of the air conditioner.
[0019]
The air conditioner 10 can be roughly classified into a compressor 11, a compressor motor 11M, a four-way valve 12, an outdoor heat exchanger 13, an electric expansion valve 14, an indoor heat exchanger 15, a refrigerant pipe 16, , An indoor fan 17, an indoor fan motor 17M, an outdoor fan 18, an outdoor fan motor 18M, an outdoor control unit 19, an indoor control unit 20, a remote controller transmitting / receiving unit 21, and a remote controller 22. ing. Hereinafter, for simplicity of description, the remote controller light transmitting / receiving unit 21 is described as a remote control light transmitting / receiving unit 21 and the remote controller 22 is described as a remote controller 22.
[0020]
First, the general operation of the air conditioner will be described.
[0021]
According to the above configuration, the compressor 11, the four-way valve 12, the outdoor heat exchanger 13, the electric expansion valve 14, and the indoor heat exchanger 15 of the air-conditioning apparatus 10 are connected by the refrigerant pipe 16 to form a so-called refrigeration cycle. ing.
[0022]
The refrigerant flow path is switched by the four-way valve 12 between the cooling operation (including the dry operation and the defrosting operation) under the control of the outdoor control unit 19 and the heating operation, so that the outdoor heat exchanger 13 and the indoor Heat exchange is performed in the heat exchanger 15 to perform cooling or heating.
[0023]
At this time, the outdoor fan 18 driven by the outdoor fan motor 18M under the control of the outdoor control unit 19 promotes heat exchange of the outdoor heat exchanger 13.
[0024]
On the other hand, the indoor fan 17 driven by the indoor fan motor 17M under the control of the indoor control unit 20 promotes the heat exchange of the indoor heat exchanger 15. In this case, the control mode of the rotation speed (corresponding to the wind speed) of the indoor fan 17 includes a manual setting mode in which a user manually gives an instruction, and an automatic control by the indoor control unit 20 under preset conditions (such as indoor temperature). There is an automatic setting mode (hereinafter, referred to as an automatic wind speed mode) in which automatic setting is performed.
[0025]
The remote controller 22 transmits a control light signal, and controls the air conditioner 10 via the remote controller light transmitting / receiving unit 21 and the indoor control unit 20.
[0026]
Next, dew condensation prevention control on the indoor unit side of the air conditioner will be described.
[0027]
FIG. 2 is a diagram illustrating the relationship between the rotation speed of the indoor fan and the operating frequency of the compressor in the automatic wind speed mode. In FIG. 2, a hatched line shown by a solid line indicates a control characteristic in a case where the rotational speed of the indoor fan and the operating frequency of the compressor are controlled in a one-to-one correspondence with a safety factor in consideration of a safety factor in order to prevent dew condensation. The case where it is represented by a first-order approximation straight line is shown.
[0028]
In the present embodiment, when controlling the rotation speed of the indoor fan 17 in the automatic wind speed mode, in each rotation speed range of the indoor fan 17, the dew condensation does not occur near the outlet of the indoor unit in the rotation speed range. Under the following conditions, the maximum operating frequency Fmax, which is the upper limit of the operating frequency of the compressor 11, is set.
[0029]
This will be specifically described below.
[0030]
In the automatic wind speed mode, the rotation speed R of the indoor fan 17 is determined based on the maximum rotation speed RMAX based on the maximum standard rotation speed FAN_H of the indoor fan 17 (the rotation speed that is not operated at a higher rotation speed in the control state). It is determined as follows.
[0031]
RMAX = FAN_AT_H (rpm)
Further, the minimum rotation speed RMIN is set to be equal to the minimum standard rotation speed FAN_AT_L of the indoor fan 17 (a rotation speed at which the indoor fan 17 is not operated at a rotation speed lower than this in the control state).
[0032]
RMIN = FAN_AT_L
On the other hand, the highest operating frequency Fmax of the compressor uses the low-range reference speed & FAN-L and the mid-range reference speed & FAN-M in this embodiment for each range of the rotation speed R of the indoor fan 17 described below. Are defined in three stages. Here, the low-range reference rotation speed & FAN-L and the middle-range reference rotation speed & FAN-M are appropriately determined in consideration of the feeling of use and the like.
[0033]
(A) When the range of the rotation speed R is R ≦ & FAN-L (b) When the range of the rotation speed R is & FAN-L <R ≦ & FAN-M (c) The range of the rotation speed R is & FAN-M <R The case is specifically described for each range of the rotational speed R.
(A) When the range of the rotation speed R is R ≦ & FAN-L In this case, the maximum operation frequency when the rotation speed of the indoor fan 17 is the minimum standard rotation speed FAN_AT_L is F_AT_L, and the rotation speed of the indoor fan 17 is Assuming that the maximum rotation frequency RMAX, that is, the minimum operation frequency when the rotation number of the indoor fan 17 is FAN_AT_H is F_AT_H, the maximum operation frequency F_LIMIT_L is expressed by the following equation (1).
[0034]
F_LIMIT_L = [(& FAN-L-FAN_AT_L) / (FAN_AT_H-FAN_AT_L)] × (F_AT_HFF_AT_L) + F_AT_L + α (1)
Here, α> 0, and the value of α is such that the range of the rotation speed R of the indoor fan 17 is R ≦ & FAN-L.
In this case, a value that does not cause dew condensation near the outlet is experimentally obtained. (B) When the range of the rotation speed R is & FAN-L <R ≦ & FAN-M In this case, the maximum operation frequency when the rotation speed of the indoor fan 17 is the minimum standard rotation speed FAN_AT_L is F_AT_L, and the indoor fan 17 Is the maximum rotational speed RMAX, that is, the operating frequency when the rotational speed of the indoor fan 17 is FAN_AT_H is F_AT_H, the maximum operating frequency F_LIMIT_M is expressed by the following equation (2).
[0035]
F_LIMIT_M = [(& FAN-M-FAN_AT_L) / (FAN_AT_H-FAN_AT_L)] × (F_AT_HFF_AT_L) + F_AT_L + α (2)
Here, α> 0, and the value of α is such that the range of the rotation speed R of the indoor fan 17 is & FAN-L <R ≦ & FAN-M
In this case, a value that does not cause dew condensation near the outlet is experimentally obtained.
(C) In the case where the range of the rotational speed R is & FAN-M <R In this case, the rotational speed of the indoor fan 17 is the maximum rotational speed RMAX, that is, the minimum operating frequency when the rotational speed of the indoor fan 17 is FAN_AT_H. When F_AT_H is set, the maximum operating frequency F_LIMIT_H is represented by the following equation (3).
[0036]
F_LIMIT_H = F_AT_H + β (3)
Here, | β |> 0, and the value of β is such that the range of the rotation speed R of the indoor fan 17 is & FAN-M <R ≦ FAN_AT_H
In this case, a value that does not cause dew condensation near the outlet is experimentally obtained. The reason why the value of β includes a negative value is that consideration is given to a case where the rotational speed of the indoor fan 17 has an upper limit.
[0037]
As a result, as shown in FIG. 2, the rotation speed R of the indoor fan 17 is
R ≦ FAN_AT_H
Within the range of the maximum operating frequency according to the value range of the rotation speed R,
F_LIMIT_L → F_LIMIT_M → F_LIMIT_H
Is switched in sequence.
[0038]
Therefore, the operating frequency of the compressor 11 is not excessively limited by the rotation speed R of the indoor fan 17, the degree of freedom in setting the operation state is increased, and a comfortable operation according to the needs of the user can be performed.
[0039]
In the above description, the relationship between the rotational frequency R of the indoor fan 17 and the operating frequency of the compressor has been described. However, in actuality, it is necessary to perform control in consideration of the elapsed time from the start of operation.
[0040]
Hereinafter, the actual control processing will be described.
[0041]
FIG. 3 is a processing flowchart during cooling in the automatic wind speed mode according to the embodiment.
[0042]
First, when the remote controller 22 is operated by the user instructing the start of the cooling operation in the automatic wind speed mode, the remote controller 22 sends a control light signal to the remote controller light transmitting / receiving unit 21.
[0043]
As a result, the remote control light transmission / reception unit 21 outputs control data for instructing start of operation corresponding to the received control light signal to the indoor control unit 20.
[0044]
Accordingly, the indoor control unit 20 notifies the outdoor control unit 19 of the start of the operation, and sets the maximum operation frequency Fmax = MAX (permissible maximum operation frequency) to cause the outdoor control unit 19 to drive the compressor motor 11M, and 11 is driven (step S1).
[0045]
At this time, the indoor control unit 20 automatically controls the rotation speed R of the indoor fan 17 by measuring the temperature in the air-conditioned room by using an unillustrated indoor temperature sensor.
[0046]
Then, the indoor control unit 20 determines whether or not the rotation speed R of the indoor fan 17 is higher than the low-range reference rotation speed & FAN-L (Step S2).
[0047]
If it is determined in step S2 that the rotation speed R of the indoor fan 17 is greater than the low-range reference rotation speed & FAN-L (step S2; Yes), the indoor control unit 20 determines whether one hour has elapsed since the start of operation. It is determined whether or not it is (step S3). Here, the reason for determining whether or not one hour has already passed since the start of the operation is that if the air conditioner 10 is properly installed if one hour has passed in the state of the maximum operating frequency Fmax = MAX, This is because the temperature of the air-conditioned room should have already been lowered to a sufficient temperature.
[0048]
If it is determined in step S3 that one hour has not yet elapsed since the start of operation (step S3; No), the process returns to step S2, and substantially enters a standby state.
[0049]
If it is determined in step S3 that one hour has already elapsed from the start of operation (step S3; Yes), the indoor control unit 20 determines that the rotation speed R of the indoor fan 17 is greater than the mid-range reference rotation speed & FAN-M. It is determined whether or not it is larger (step S4).
[0050]
If it is determined in step S4 that the rotation speed R of the indoor fan 17 is larger than the mid-range reference rotation speed & FAN-M (step S4; Yes), the indoor control unit 20 sets the maximum operation frequency Fmax = F_LIMIT_H to the outdoor control. The unit 19 drives the compressor motor 11M to continue the operation of the compressor 11 (step S5). Then, the process proceeds to step S9.
[0051]
In the determination in step S4, when the rotation speed R of the indoor fan 17 is equal to or lower than the mid-range reference rotation speed & FAN-M (step S4; No), the indoor control unit 20 sets the maximum operation frequency Fmax = F_LIMIT_M to the outdoor The controller 19 drives the compressor motor 11M to continue the operation of the compressor 11 (step S6). Then, the process proceeds to step S9.
[0052]
On the other hand, if it is determined in step S2 that the rotation speed R of the indoor fan 17 is equal to or lower than the low-range reference rotation speed & FAN-L (step S2; No), the indoor control unit 20 determines the rotation speed R of the indoor fan 17 It is determined whether or not 5 minutes have already passed since the low frequency reference rotation speed & FAN-L was reached (step S7). Here, the reason why it is determined whether or not 5 minutes have already passed since the rotation speed R of the indoor fan 17 became the low-range reference rotation speed & FAN-L is that the rotation speed R of the indoor fan 17 is low-range reference rotation. This is because if the operation frequency of the compressor 11 is not reduced after 5 minutes or more in the state of several & FAN-L, dew condensation may occur near the outlet of the indoor unit.
[0053]
If it is determined in step S5 that five minutes have not yet elapsed after the rotation speed R of the indoor fan 17 has reached the low-range reference rotation speed & FAN-L state (step S5; No), the process is repeated. The process shifts to S2, and substantially enters a standby state.
[0054]
In the determination in step S5, if five minutes have already passed since the rotation speed R of the indoor fan 17 became the low-range reference rotation speed & FAN-L, the indoor control unit 20 sets the maximum operation frequency Fmax = F_LIMIT_L as The outdoor controller 19 drives the compressor motor 11M to continue the operation of the compressor 11 (step S6). Then, the process proceeds to step S9.
[0055]
Next, the indoor control unit 20 determines whether or not the user has performed an instruction operation to cancel the automatic wind speed mode via the remote control 22 and the remote control light transmission / reception unit 21 (step S9).
[0056]
If it is determined in step S9 that the user has not performed the operation to cancel the automatic wind speed mode (step S9; No), the process returns to step S2, and the operation frequency control of the compressor in the automatic wind speed mode is performed. continue.
[0057]
If it is determined in step S9 that the user has performed an instruction to cancel the automatic wind speed mode (step S9; Yes), the process returns to step S1 to continue the process corresponding to the operation of the remote controller 22. Become.
[0058]
As described above, according to the present embodiment, the operation of the compressor is restricted in spite of the fact that the maximum operating frequency of the compressor is limited (the upper limit of the operating frequency) in accordance with the rotation speed of the indoor fan. The frequency is not unnecessarily limited by the number of revolutions of the indoor fan.
[0059]
【The invention's effect】
According to the present invention, in parallel with the automatic control of the rotational speed of the indoor fan by the rotational speed control unit, the operating frequency setting unit sets the upper limit of the operating frequency of the compressor for preventing dew condensation for each of the indoor fan rotational speed ranges. The operating frequency is set within the specified operating frequency setting range, so the operating frequency of the compressor is higher than necessary, despite the upper limit of the operating frequency of the compressor being set according to the number of rotations of the indoor fan. There is no restriction due to the rotation speed of the indoor fan.
[Brief description of the drawings]
FIG. 1 is a refrigerant circuit diagram of an air conditioner.
FIG. 2 is an explanatory diagram showing a relationship between a rotation speed of an indoor fan and an operating frequency of a compressor in an automatic wind speed mode.
FIG. 3 is a processing flowchart during cooling in an automatic wind speed mode according to the embodiment.
[Explanation of symbols]
Reference Signs List 10 air conditioner 11 compressor 11M compressor motor 12 four-way valve 13 outdoor heat exchanger 14 electric expansion valve 15 indoor heat exchanger 16 refrigerant pipe 17 indoor fan 17M indoor fan motor 18 outdoor fan 18M outdoor fan motor 19 outdoor control unit ( Operating frequency setting section)
20 Indoor control unit (rotation speed control unit)
21 Remote controller transmitter / receiver 22 Remote controller

Claims (6)

  1. In an air conditioner equipped with an indoor fan, an indoor heat exchanger and a compressor,
    A rotation speed control unit that performs automatic control of the rotation speed of the indoor fan,
    An operating frequency setting unit that sets the operating frequency within an operating frequency setting range in which an upper limit of an operating frequency of the compressor for preventing dew condensation at each rotation speed range of the indoor fan is set;
    An air conditioner comprising:
  2. The air conditioner according to claim 1,
    The air conditioning apparatus, wherein the operating frequency setting unit sets the operating frequency as if there is no upper limit of the operating frequency until a predetermined time has elapsed from the start of the operation.
  3. The air conditioner according to claim 1 or 2,
    The operating frequency setting unit, when the rotation speed of the indoor fan is equal to or less than a predetermined low-frequency reference rotation speed, corresponds to a rotation speed range of the indoor fan to which a rotation speed equal to or less than the low-frequency reference rotation speed after a predetermined time has elapsed. An air conditioner characterized by an operating frequency of:
  4. In the control method of the air conditioner including the indoor fan, the indoor heat exchanger, and the compressor,
    A rotation speed control step of automatically controlling the rotation speed of the indoor fan,
    An operating frequency setting step of setting the operating frequency within an operating frequency setting range in which an upper limit of an operating frequency of the compressor for preventing dew condensation for each rotation speed range of the indoor fan is set;
    A method for controlling an air conditioner, comprising:
  5. The control method for an air conditioner according to claim 4,
    The method of controlling an air conditioner, wherein the operation frequency setting step sets the operation frequency as if there is no upper limit of the operation frequency until a predetermined time has elapsed from the start of operation.
  6. In the control method of the air conditioner according to claim 4 or 5,
    The operation frequency setting step corresponds to a rotation speed range of the indoor fan to which a rotation speed equal to or lower than the low frequency reference rotation speed after a predetermined time has elapsed when the rotation speed of the indoor fan is equal to or lower than a predetermined low frequency reference rotation speed. A method for controlling an air conditioner, comprising:
JP2003011767A 2003-01-21 2003-01-21 Air conditioner and control method of air conditioner Pending JP2004225948A (en)

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JP2003011767A JP2004225948A (en) 2003-01-21 2003-01-21 Air conditioner and control method of air conditioner
CNB2004100013775A CN100386576C (en) 2003-01-21 2004-01-07 Air conditioner and control method of air conditioner
KR1020040004047A KR100545957B1 (en) 2003-01-21 2004-01-20 Air conditioning apparatus and control method thereof

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JP2008128608A (en) * 2006-11-24 2008-06-05 Mitsubishi Electric Corp Air conditioner
JP2011153756A (en) * 2010-01-27 2011-08-11 Mitsubishi Heavy Ind Ltd Air conditioner and method of controlling the same
CN104236010A (en) * 2013-06-20 2014-12-24 广东美的集团芜湖制冷设备有限公司 Control method of air conditioner
EP3115705A3 (en) * 2015-07-07 2017-02-15 Emerson Network Power S.R.L. Method of optimizing the dehumidification function for air-conditioning units for server rooms and the like and air-conditioning unit for applying such method
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US20150128628A1 (en) * 2012-07-24 2015-05-14 Mitsubishi Electric Corporation Air-conditioning apparatus
JP5959473B2 (en) * 2013-05-09 2016-08-02 三菱電機株式会社 Air conditioner
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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0519696Y2 (en) * 1987-09-14 1993-05-24
JP2933384B2 (en) * 1990-11-29 1999-08-09 松下電器産業株式会社 Air conditioner
JPH11304227A (en) * 1998-04-17 1999-11-05 Hitachi Ltd Control method for air conditioner
JP2000292013A (en) * 1999-02-03 2000-10-20 Sanyo Electric Co Ltd Air-conditioner

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JP2008128608A (en) * 2006-11-24 2008-06-05 Mitsubishi Electric Corp Air conditioner
JP4698558B2 (en) * 2006-11-24 2011-06-08 三菱電機株式会社 Air conditioner
JP2011153756A (en) * 2010-01-27 2011-08-11 Mitsubishi Heavy Ind Ltd Air conditioner and method of controlling the same
CN104236010A (en) * 2013-06-20 2014-12-24 广东美的集团芜湖制冷设备有限公司 Control method of air conditioner
CN104236010B (en) * 2013-06-20 2017-02-22 广东美的集团芜湖制冷设备有限公司 Control method of air conditioner
EP3115705A3 (en) * 2015-07-07 2017-02-15 Emerson Network Power S.R.L. Method of optimizing the dehumidification function for air-conditioning units for server rooms and the like and air-conditioning unit for applying such method
CN106839263A (en) * 2016-12-20 2017-06-13 青岛海尔空调器有限总公司 Air-conditioning and its control method
CN106839263B (en) * 2016-12-20 2019-11-26 青岛海尔空调器有限总公司 Air-conditioning and its control method

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