CN1278590A - Overload controlling method for refrigerating/heating multi-mode air-conditioner in heating work-period - Google Patents
Overload controlling method for refrigerating/heating multi-mode air-conditioner in heating work-period Download PDFInfo
- Publication number
- CN1278590A CN1278590A CN00109644A CN00109644A CN1278590A CN 1278590 A CN1278590 A CN 1278590A CN 00109644 A CN00109644 A CN 00109644A CN 00109644 A CN00109644 A CN 00109644A CN 1278590 A CN1278590 A CN 1278590A
- Authority
- CN
- China
- Prior art keywords
- overload
- indoor set
- temperature
- heating
- work
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 title claims description 51
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000004087 circulation Effects 0.000 description 13
- 230000001276 controlling effect Effects 0.000 description 13
- 238000005057 refrigeration Methods 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- LXRZVMYMQHNYJB-UNXOBOICSA-N [(1R,2S,4R)-4-[[5-[4-[(1R)-7-chloro-1,2,3,4-tetrahydroisoquinolin-1-yl]-5-methylthiophene-2-carbonyl]pyrimidin-4-yl]amino]-2-hydroxycyclopentyl]methyl sulfamate Chemical compound CC1=C(C=C(S1)C(=O)C1=C(N[C@H]2C[C@H](O)[C@@H](COS(N)(=O)=O)C2)N=CN=C1)[C@@H]1NCCC2=C1C=C(Cl)C=C2 LXRZVMYMQHNYJB-UNXOBOICSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/029—Control issues
- F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A method for controlling the overload of the air-condition at working time comprises: 1) When a temperature of an indoor unit is detected as a first overload preventing reference temperature, the first overload preventing operation works, 2) When a temperature of an indoor unit is detected as a secondary overload preventing reference temperature, the secondary overload preventing operation works. Besides, When a temperature of an indoor unit is detected as a secondary overload preventing reference temperature, whether another indoor unit is during operating or not is judged, that is, if any one indoor unit is during operating and an unused indoor unit is operated as an indoor operating state, a secondary overload preventing operation is not executed, but a compressor is driven to conduct the secondary overload preventing operation, thereby stopping the compressor to prevent discharging of cold air thus generated.
Description
The present invention relates to a kind of operation control method that is used for air-conditioner, more particularly, the present invention relates to the overload controlling method of a kind of refrigeration/heating multi-type air conditioner, this air-conditioner has an outdoor location and a plurality of indoor set that is connected to outdoor location during heating work.
Usually, air-conditioner cool off by the heat exchange of the cold-producing medium that stands phase transformation that in the closed-loop path, circulates or heating clamber in air.Recently, the multi-type air conditioner with the indoor set in an outdoor location and a plurality of some rooms that are installed in building has obtained application.But such multi-type air conditioner high efficiency and freezing cheaply and heating work.
The cold-producing medium circulation of a refrigeration/heating multi-type air conditioner has been shown, and Fig. 2 is the controlling party block diagram of Fig. 1 in Fig. 1 and Fig. 2.
As shown in Figure 1, refrigeration/heating multi-type air conditioner comprises an outdoor location 10 and a plurality of indoor set 20,30 and 40.
In addition, as shown in Figure 2, outdoor location 10 comprise microcomputer 17, that outdoor fan drive part 14, a cross valve drive part 16, that a power unit 11, a driven compressor part 12, an electric expansion valve drive part 13, are used to drive outdoor fan 15 are used to control said elements work be used for indoor set 20,30 and 40 with outdoor temperature sensor 19 between the communications portion of communicating by letter 18.
In addition, each indoor set 20,30 and 40 comprise power unit 21,31 and 41, communication part 22,32 and 42, microcomputer 23,33 and 43, key input section 24,34 and 44, indoor fan 26,36 and 46, be used for the indoor fan drive part 25 of drive chamber's inner blower 26,36 and 46,35 and 45 and indoor temperature transmitter 29,39 and 49.
To describe the situation of the refrigeration/heating multi-type air conditioner of above-mentioned structure below in detail by circulation of single-unit cold-producing medium and the periodic duty of more piece cold-producing medium.
In the circulation of single-unit cold-producing medium, cold-producing medium is by single-unit circulating path 121, capillary 131, single-unit outdoor heat converter 141, single- unit cross valve 151 and 111 circulations of single-unit compressor of single-unit compressor 111, single-unit cross valve 151, outdoor heat converter 120, to carry out refrigeration work.By regulating single-unit cross valve 151, the loop direction that can make cold-producing medium is on the contrary to carry out heating work.
Identical with above-mentioned single-unit cold-producing medium circulation, in the circulation of more piece cold-producing medium, with the direction that replaces more piece circulating path 122, electric expansion valve 132 and 133, more piece indoor heat converter 142 and 143, more piece cross valve 152 and more piece compressor 12, hold refrigeration/heating work by the cold-producing medium circulation by more piece compressor 112, more piece cross valve 152, outdoor heat converter 120.
Yet in more piece cold-producing medium circulation, two different rooms of building are simultaneously by a pair of more piece indoor heat converter 142 and 143 refrigeration/heating.During two room refrigeration/heating works to building, control the flow velocity of cold-producing medium at the same time by opening or closing electric expansion valve 132 and 133.In addition, during the refrigeration/heating work to a room of building only, the electric expansion valve of obsolete indoor set (for example 133) is closed so that cold-producing medium does not flow to yet obsolete indoor heat converter 143.During the refrigeration work that is used for a room,, can keep the suitable flow velocity of cold-producing medium because bypass 160 is switched on (ON) and circulates by outdoor location with the licence system cryogen.But, because during the heating work in a room, owing to there is not independent indoor set draught excluder, cold-producing medium is collected in certain part.In order to prevent this problem, also not exclusively close obsolete indoor electric expansion valve 133, so that make a spot of cold-producing medium flow to also obsolete indoor heat converter 143.
Because a spot of cold-producing medium flows to the indoor heat converter 142 or 143 of idle indoor set 30 or 40, and other indoor set 30 or 40 work to be heating a room, thus the overload work that the temperature of obsolete indoor heat converter 142 or 143 can raise and cause air-conditioner.In order to prevent overload work, as shown in Figure 3, during heating work (step S100), detect the temperature (T) (step S101) of indoor heat converter 142 or 143.When detecting temperature (T) and be on first overload reference temperature (being generally 53 degrees centigrade) (step S102), outdoor fan 15 is disconnected (OFF) (step S103) to carry out the operation of first overload preventing, reduces the temperature of indoor heat converter 142 or 143.If even temperature still continues to raise above the second overload reference temperature (being generally 60 degrees centigrade) (step S104) after first overload preventing operation that outdoor fan 15 disconnects, compressor 112 is disconnected (step S105).Compressor 112 keeps the off-state (step S106) of predetermined time interval (about 3-4 minutes), connects (step S107) again.Therefore, indoor heat converter 142 or 143 temperature no longer raise and surpass the overload reference temperature, can prevent overload work.
But, according to above-mentioned conventional overload controlling method, during the heating work of the indoor set 30 in a room, for example, when other indoor set 40 was started working, compressor 112 stopped sometimes to carry out the operation of second overload preventing, the cold air when emitting initialization.To describe this situation in detail with reference to figure 4.
When an indoor heat converter of the more piece indoor set 30 that detects work or 40 (for example, when temperature first indoor heat converter 142) is on 53 degrees centigrade (they are the first overload reference temperature), carry out the operation of first overload preventing, disconnect outdoor fan 15 to reduce the temperature of first and second indoor heat converters.
Then, when disconnecting other indoor set 40, allow indoor set 30 work independently, the indoor heat converter 143 of the indoor set 40 that allows a spot of cold-producing medium to flow to be in off-state, and therefore increase the temperature of indoor heat converter 143, surpass 60 degrees centigrade sometimes, this temperature is the second overload reference temperature (seeing the a-quadrant of Fig. 4).Here, even the temperature of the indoor heat converter 143 of indoor set 40 is elevated on 60 degrees centigrade,, indoor set 40 do not carry out the operation of second overload preventing because being in off-state.Then, when indoor set 40 was started working, the temperature that detects the heat exchanger 143 of indoor set 40 was in more than 60 degrees centigrade, so stop compressor 112 to carry out the operation of second overload preventing.Therefore, shown in the line of expression first and second indoor heat converters 142 and 143 variations in temperature among Fig. 4, first and second indoor heat converters 142 and 143 temperature significantly descend in compressor 112 areas of disconnection (the B zone of Fig. 4 is seen in letter).At 3 to 4 minutes off period of this compressor 112, cold air is discharged from each indoor set 30 and 40, the efficiency of heating surface of the air-conditioner that has reduced.
The present invention is in order to overcome the problems referred to above of prior art, therefore, the purpose of this invention is to provide a kind of overload controlling method that is used for during the refrigerating/heating multi-mode air-conditioner in heating work, by optionally carrying out the operation of second overload preventing, such as during other indoor set heating work in a room that is used for building, when definite idle indoor set is started working, do not carry out second overload preventing operation, thereby prevent that cold air from discharging when starting working.
Above-mentioned purpose of the present invention can realize by the overload controlling method that is used for during the refrigerating/heating multi-mode air-conditioner in heating work, this method comprises the steps: 1) when the temperature that detects indoor set during heating work surpasses the first overload reference temperature, be used to stop first overload preventing operation of outdoor fan; And 2) when the temperature that detects indoor set surpasses the second overload reference temperature, carry out the operation of second overload preventing, to stop the compressor predetermined time interval, drive compression machine again then.In step 2) in, if determining idle indoor set starts working at other more piece indoor set duration of work in a room that is used for building, surpass the second overload reference temperature even detect the temperature of a more piece indoor set, also do not carry out the operation of second overload preventing, compressor still carries out work.
Between the period of heating of an indoor set, even because from detected temperature requirement second overload preventing operation of the indoor heat converter of other indoor set of starting working, do not carry out the operation of second overload preventing yet, therefore, can prevent owing to compressor is in the cold air discharge that off-state causes, and prevent that the efficiency of heating surface from reducing.
Above-mentioned purpose of the present invention and other advantage will become clearer in the description to most preferred embodiment below in conjunction with the accompanying drawings, wherein:
Fig. 1 is the view of the cold-producing medium circulation of refrigeration/heating multi-type air conditioner of being used to represent a routine;
Fig. 2 is the controlling party block diagram of Fig. 1;
Fig. 3 is the flow chart that is used to represent to be used for the overload controlling method during the conventional refrigerating/heating multi-mode air-conditioner in heating work;
Fig. 4 is the sequential chart of Fig. 3;
Fig. 5 is used to represent the flow chart that is used for the overload controlling method during the refrigerating/heating multi-mode air-conditioner in heating work of the present invention; And
Fig. 6 is the sequential chart of Fig. 5.
As shown in Figure 5, the overload controlling method that is used for during the refrigerating/heating multi-mode air-conditioner in heating work of the present invention comprises the steps: that (step S200) carries out heating work by more piece indoor set 30 or 40; (step S201) detects the indoor heat converter 142 of more piece indoor set 30 or 40 or 143 temperature (T); In the time of on the temperature that detects indoor heat converter 142 or 143 (T) is in first 53 degrees centigrade of the reference temperatures of overload, determine the overload work of air-conditioners by microcomputer 17; And (step S203) disconnects outdoor fan 15 to carry out first overload preventing operation work.
In addition, even after carrying out the operation of first overload preventing, when the temperature (T) of the indoor heat converter 142 of the indoor set 30 that is using or 40 or 143 owing to any reason is elevated to the second overload reference temperature more than 60 degrees centigrade the time, microcomputer 17 is determined the overload work (step S204) of air-conditioner, and disconnects compressor 112 (step S206).Keep compressor 112 to be in off-state preset time back (step S206) at interval, compressor 112 is connected (step S208) to carry out the operation of second overload preventing.
The basic process of the overload work of control during the refrigerating/heating multi-mode air-conditioner in heating work is with above-mentioned identical.But, the overload controlling method of conventional air-conditioning device has following shortcoming: when an idle indoor set (for example 40) when starting working during other indoor set 30 heating works, because the temperature (T) of the indoor heat converter 143 of indoor set 40 increases, compressor 112 stops carrying out the overload preventing operation, and therefore cold air is discharged to the room when initialization.
The present invention has overcome the above-mentioned shortcoming of conventional air-conditioning device: in the time of on the temperature that detects indoor set 30 or 40 is in second 60 degrees centigrade of the reference temperatures of overload, determine whether other indoor set 30 or 40 works.That is to say, when detecting idle indoor set 40 when other indoor set 30 duration of works are started working (step S205), do not carry out the operation of second overload preventing, compressor 112 still works on (step S210) to prevent discharging cold air owing to disconnecting compressor 112.Simultaneously, when detecting obsolete indoor set 40 and still be in off-state, carry out normal second overload preventing operation (step S206, S207 and S208).
Below with reference to Fig. 1,2 and 5 more detailed descriptions are of the present invention to be used for overload controlling method during the refrigerating/heating multi-mode air-conditioner in heating work.
When the driving signal is input in any one more piece indoor set 30 or 40, promptly, when the driving signal is input to more piece indoor set 30 by the user by key input section 34, the microcomputer 33 of more piece indoor set 30 is connected indoor fan 36, outputs to outdoor location 10 driving signal simultaneously.Drive the communications portion 18 that communications portion 32 and the communication line of signal by indoor set 30 is sent to outdoor location 10.
The microcomputer 17 of outdoor location 10 is according to the electric expansion valve 132 of the signal connection indoor set 30 that passes through communication part 18 transmission, simultaneously by allowing cold-producing medium to carry out heating work by corresponding indoor heat converter 142 circulations and connection cross valve 152, compressor 112 and outdoor fan 15.
During heating work, detect the temperature of indoor heat converter 142 and compare with the first overload reference temperature.In the time of on the temperature that detects indoor heat converter 142 is in the first overload reference temperature, the outdoor fan cut-off signal is output to outdoor location 10.According to the outdoor fan cut-off signal from indoor set 30 outputs, microcomputer 17 disconnects outdoor fan 15, thereby carries out the operation of first overload preventing.
In addition, although it is not shown among Fig. 5, when making the temperature (T) of indoor heat converter 142 drop to the first overload reference temperature below 50 degrees centigrade the time in first overload preventing operating period by disconnecting outdoor fan 15, the outdoor fan connection signal is output to outdoor location 10.Then, the microcomputer 17 of outdoor location 10 is operated thereby cancel first overload preventing according to connecting outdoor fan 15 from the outdoor fan connection signal of indoor set 30 outputs, gets back to originate mode.
In addition, surpass the second overload reference temperature when the temperature (T) of indoor heat converter 142 even after the first overload preventing operation disruption is opened outdoor fan 15, still continue to raise, the compressor cut-off signal is output to outdoor location 10, and outdoor fan 15 remains on off-state simultaneously.Compressor 112 is in off-state up to from from outdoor location 10 input compressor connection signals., even at this state, disconnect the overload temperature when the temperature (T) that detects from indoor heat converter 142 is lower than first herein, the outdoor fan connection signal also outputs to outdoor location 10.
Here, the microcomputer 17 of outdoor location 10 determines whether other indoor set, and promptly idle indoor set 40 is started working.When definite idle indoor set 40 still is in off-state, the microcomputer 17 of outdoor location 10 carries out the operation of second overload preventing, be that microcomputer 17 stops compressor 112 according to the compressor cut-off signal from indoor set 30 outputs, keep this state preset time at interval, and reset compressor 112.When definite idle indoor set 40 was started working, microcomputer 17 did not carry out the operation of second overload preventing, and continues drive compression machine 112.
The overload controlling method be used for during the refrigerating/heating multi-mode air-conditioner in heating work is described below with reference to Fig. 6.
As shown in Figure 6, indoor heat converter when the more piece indoor set 30 that detects work or 40 (when for example, 142) temperature (T) has arrived 53 degrees centigrade, disconnects outdoor fan 15 by the operation of first overload preventing, usually, the temperature of indoor heat converter 142 descends.
Here, when disconnecting an indoor set 40 and its indoor fan 46, a spot of cold-producing medium flows to the indoor heat converter 143 of indoor set 40, and the temperature that increases indoor heat converter 143 sometimes surpasses 60 degrees centigrade (seeing the a-quadrant).Usually, owing to detect the temperature (T) of indoor heat converter 143 when indoor set 40 is started working, continue the operation of second overload preventing, therefore compressor 112 is disconnected when indoor set 40 is started working.But according to the present invention, when definite idle indoor set 40 had been started working, compressor 112 did not disconnect (seeing the B zone), can prevent to cause discharging cold air owing to disconnect compressor 112 when initialization.
As mentioned above, according to the present invention, when definite idle indoor set is started working, do not continue the operation of second overload preventing during other indoor set heating work even be under the condition of second overload preventing operation yet.Therefore, prevent the disconnection of compressor 112, can prevent from when initialization, to discharge cold air.As a result, can prevent to reduce the efficiency of heating surface.
Although described the present invention especially with reference to most preferred embodiment, be appreciated that the same domain technical staff can carry out various variations in form and details, they do not break away from aim of the present invention and the scope that is limited by the claim of enclosing.
Claims (1)
1, a kind of overload controlling method that is used for during the refrigerating/heating multi-mode air-conditioner in heating work, it comprises the steps:
1), when the temperature that detects indoor set during heating work surpasses the first overload reference temperature, be used to stop first overload preventing operation of outdoor fan; And
2), when the temperature that detects indoor set surpasses the second overload reference temperature, carry out the operation of second overload preventing, to stop the compressor predetermined time interval, drive compression machine again then; And
In step 2) in, if determining idle indoor set starts working at other more piece indoor set duration of work in a room that is used for building, surpass the second overload reference temperature even detect the temperature of a more piece indoor set, also do not carry out the operation of second overload preventing, compressor still carries out work.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR9923216 | 1999-06-21 | ||
| KR1019990023216A KR100354065B1 (en) | 1999-06-21 | 1999-06-21 | Control method for a heat pump type multi air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278590A true CN1278590A (en) | 2001-01-03 |
| CN1114796C CN1114796C (en) | 2003-07-16 |
Family
ID=19593793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00109644A Expired - Fee Related CN1114796C (en) | 1999-06-21 | 2000-06-19 | Overload controlling method for refrigerating/heating multi-mode air-conditioner in heating work-period |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3267597B2 (en) |
| KR (1) | KR100354065B1 (en) |
| CN (1) | CN1114796C (en) |
| IT (1) | IT1320516B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575860B (en) * | 2009-09-18 | 2014-12-24 | 三菱电机株式会社 | Air conditioning device |
| CN104879892A (en) * | 2015-05-12 | 2015-09-02 | 广东美的暖通设备有限公司 | Control method and control system for high-temperature protection of air conditioner internal unit |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100705223B1 (en) * | 2005-10-28 | 2007-04-06 | 엘지전자 주식회사 | Method for dissolving partial overload in air conditioner |
| KR101579825B1 (en) * | 2009-01-09 | 2015-12-24 | 삼성전자 주식회사 | Air conditioner and method to cancel stop mode |
| GB2478925A (en) | 2010-03-23 | 2011-09-28 | Dyson Technology Ltd | External filter for a fan |
| CN105805901A (en) * | 2016-05-13 | 2016-07-27 | 广东美的制冷设备有限公司 | Operation control method and device for air conditioner |
| CN105902169B (en) * | 2016-07-01 | 2019-05-03 | 杭州杰富睿科技有限公司 | Heat exchanger and direct drinking fountain comprising the heat exchanger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0261454A (en) * | 1988-08-29 | 1990-03-01 | Hitachi Ltd | Method of controlling operation of multi-room air-conditioner on priority control basis |
| JPH07120046A (en) * | 1993-10-20 | 1995-05-12 | Fujitsu General Ltd | Controlling method for air conditioner |
| JPH1194384A (en) * | 1997-09-26 | 1999-04-09 | Mitsubishi Heavy Ind Ltd | Multi-room type air conditioner |
-
1999
- 1999-06-21 KR KR1019990023216A patent/KR100354065B1/en not_active IP Right Cessation
-
2000
- 2000-06-05 JP JP2000168199A patent/JP3267597B2/en not_active Expired - Fee Related
- 2000-06-19 CN CN00109644A patent/CN1114796C/en not_active Expired - Fee Related
- 2000-06-20 IT IT2000TO000603A patent/IT1320516B1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575860B (en) * | 2009-09-18 | 2014-12-24 | 三菱电机株式会社 | Air conditioning device |
| CN104879892A (en) * | 2015-05-12 | 2015-09-02 | 广东美的暖通设备有限公司 | Control method and control system for high-temperature protection of air conditioner internal unit |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1320516B1 (en) | 2003-12-10 |
| ITTO20000603A1 (en) | 2001-12-20 |
| JP3267597B2 (en) | 2002-03-18 |
| KR100354065B1 (en) | 2002-09-26 |
| CN1114796C (en) | 2003-07-16 |
| KR20010003069A (en) | 2001-01-15 |
| JP2001004193A (en) | 2001-01-12 |
| ITTO20000603A0 (en) | 2000-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100560376B1 (en) | Controller for air conditioner | |
| KR100423970B1 (en) | Air conditioner and control method thereof | |
| US5775116A (en) | Defrosting control method for air conditioner | |
| CN100340819C (en) | Multiple air conditioner system and operation of its indoor units | |
| CN1114796C (en) | Overload controlling method for refrigerating/heating multi-mode air-conditioner in heating work-period | |
| KR20050075976A (en) | Air conditioning system and control method thereof | |
| EP1677058A2 (en) | Method of controlling over-load cooling operation of air conditioner | |
| JP3445861B2 (en) | Air conditioner | |
| KR20040067980A (en) | Air conditioning apparatus and control method thereof | |
| KR20070071093A (en) | Air conditioner and defrosting driving method thereof | |
| KR20040003707A (en) | Method for controlling compressor frequency for airconditioner | |
| JP3377632B2 (en) | Air conditioner | |
| JP3642609B2 (en) | Air conditioner | |
| JP3789620B2 (en) | Air conditioner | |
| JPH11237091A (en) | Multi-room split type air conditioner | |
| JP3526393B2 (en) | Air conditioner | |
| JP2004324981A (en) | Control device for multiple room air-conditioner | |
| KR100312740B1 (en) | Detecting method of vavle failure for a multi-type air conditioner | |
| KR100689899B1 (en) | A Device For Controlling The Capacity And Controlling Method Thereof | |
| JPH0921556A (en) | Air conditioner | |
| KR20070028681A (en) | Activating logic of the air conditioner in the low ambient | |
| KR100246890B1 (en) | Air conditioner and control method therefor | |
| KR100538827B1 (en) | Air conditioner and control method thereof | |
| KR100625471B1 (en) | Multi-chamber type air conditioner and control method thereof it | |
| JPH11287500A (en) | Air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030716 |