CN101089505A - Air conditioning and control method thereof - Google Patents
Air conditioning and control method thereof Download PDFInfo
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- CN101089505A CN101089505A CNA2006101515000A CN200610151500A CN101089505A CN 101089505 A CN101089505 A CN 101089505A CN A2006101515000 A CNA2006101515000 A CN A2006101515000A CN 200610151500 A CN200610151500 A CN 200610151500A CN 101089505 A CN101089505 A CN 101089505A
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- temperature
- compressor
- predefined
- power relay
- air conditioner
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- 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
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- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
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- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2103—Temperatures near a heat exchanger
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- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to an air conditioner and the control method thereof, and the invention adopts an overload excess load protector which is controlled simultaneously by the electric current and the temperature, and it forecasts the condition of excessive ascending of compressor temperature before the disconnecting of the overload protector which is caused by the low current value of the compressor that caused by the refrigerant leakage and the like reasons according to the temperature difference between the temperature of the heat exchanger tubing and the indoor temperature, when this condition is detected it cuts off the electric power providing to prevent the excessive ascending temperature of the compressor. Thereby, it adopts the overload protector which is cheap to manufacture and is controlled simultaneously by electric current and temperature can get a same capacity when uses the overload protector which is expensive to manufacture and is controlled respectively controlled by electric current and temperature, therefore it can reduce the integral manufacturing cost when the overload protecting capacity of the compressor is not weakened.
Description
Technical field
The present invention relates to a kind of air conditioner, relate in particular to the air conditioner and the control method thereof that can reduce whole manufacturing cost when preventing that by the superheating phenomenon that effectively prevents compressor compressor is impaired.
Background technology
As shown in Figure 1; be connected with the overloading protector (OLP:over load protector) 2 that is made of bimetal leaf 2a between compressor 1 and the AC power 4, compressor 1 is by constituting as the main coil 1b of operation coil with as the ancillary coil 1a of actuating coil.This overloading protector 2 roughly be installed in compressor 1 on cover.Therefore, when connecting AC power 4, electric current flow through overloading protector 2, compressor 1 and operation capacitor 5 make compressor 1 enter normal operating condition.But; if in the running of compressor 1, overload state occurs; then the surface temperature of meeting circulation overcurrent or compressor 1 rises to abnormal temperature in the compressor 1; this moment, thermal deformation took place in the bimetal leaf 2a of overloading protector 2; the power supply supply of compressor 1 is cut off thereupon, makes that compressor 1 is out of service.
When described overloading protector 2 when the surface temperature of machine 1 and the heat that electric current produced common of flowing through bimetal leaf 2a influence its temperature and surpass set point of temperature by compression; bimetal leaf 2a is crooked because of thermal deformation; thereby the power supply supply of cutting off compressor 1 makes compressor 1 out of service; pass through after the certain hour then; when bimetal leaf 2a returned to original position because of temperature descends, the power supply supply was restored and makes compressor 1 restart operation.
Described overloading protector 2; when filling quantitative cold-producing medium in the compressor 1 at compressor 1 supply of in good time cutting off the electricity supply before overheated takes place because of bimetal leaf 2a; thereby the excessive temperature that can prevent compressor 1 rises; but when taking place when unusual because of reasons such as cold-producing medium leakage cause service condition in the running of compressor 1; because the running current of compressor 1 sharply descends; therefore in order to satisfy the dump condition; bimetal leaf 2a just can be because of the thermal deformation bending under than the original state that sharply raises in the surface temperature of compressor 1, thereby causes in time cutting off the power supply supply of compressor 1.Because overloading protector 2 just moves under the state that the compressor surface excessive temperature rises, so compressor 1 might be burnt out.
In order to prevent this problem; in Japan publication communique " flat 8-219565 " (referring to Fig. 2) adopted overloading protector 2 '; the temperature switch 3 of action takes place in this overloading protector 2 ' also have except bimetal leaf 2a according to compressor 1 surface temperature; thereby control respectively according to electric current and temperature; therefore even bimetal leaf 2a crosses because of the running current of compressor 1 and low thermal deformation can't take place in time; as long as the surface temperature of compressor 1 is higher than the temperature of regulation; then temperature switch 3 is just closed and is cut off the power supply supply of compressor 1, thereby has improved the overload protection performance of compressor.At this moment, resistance 2b plays the effect of auxiliary bimetal leaf 2a heating.
But, described overloading protector 2 ',, cause whole manufacturing cost to rise so price is higher because of controlling respectively according to electric current and temperature.
Summary of the invention
The present invention proposes in order to solve aforesaid problem; its purpose is to provide a kind of air conditioner and control method thereof that can reduce whole manufacturing cost when not weakening compressor overload protection performance; adopt simultaneously the overloading protector of controlling according to electric current and temperature for this reason; and increase the control logic utilize existing sensors, so that identical performance during the overloading protector that its performance and employing are controlled respectively according to electric current and temperature.
To achieve these goals, air conditioner provided by the present invention comprises: overloading protector, cut off described power of compressor supply to be used for moving according to the temperature of compressor and electric current; Power relay makes described compressor operating or stops by being switched on or switched off action being used for; Indoor temperature monitoring portion is to be used to detect indoor temperature; Indoor heat converter pipe arrangement temperature monitoring portion is to be used to detect the pipe arrangement temperature of indoor heat converter; Control part is to be used for controlling according to the temperature difference between described indoor temperature that is detected and the indoor heat converter pipe arrangement temperature action of described power relay.
And when the duration of the temperature difference within predefined temperature range between described indoor temperature and the indoor heat converter pipe arrangement temperature reached predefined time, described control part disconnected described power relay.
And described control part is connected described power relay through the predefined time after described power relay disconnects.
And described predefined time during described compressor initial start and the described predefined time when starting once more later are different.
And, the described predefined time of the described predefined time during described compressor initial start when starting once more later.
And air conditioner provided by the present invention comprises the temperature difference calculating part that is used to calculate the temperature difference between described indoor temperature and the indoor heat converter pipe arrangement temperature, is used to calculate the Time Calculation portion of the described duration of the temperature difference that calculates within predefined temperature range.
And, air conditioner provided by the present invention comprise according to the temperature of compressor and electric current move the overloading protector that cuts off described power of compressor supply with by being switched on or switched off the power relay that action makes described compressor operating or stops, the control method of this air conditioner comprises step: detect indoor temperature; Detect the pipe arrangement temperature of indoor heat converter; Control the action of described power relay according to the temperature difference between described indoor temperature that is detected and the indoor heat converter pipe arrangement temperature.
And, when the duration of the described temperature difference within predefined temperature range reaches predefined time, disconnect described power relay.
And, after described power relay is disconnected, connect described power relay through the predefined time.
And, when described compressor initial start,, then disconnect described power relay if the duration of the described temperature difference within described predefined temperature range reaches the predefined very first time; When starting once more later on,, then disconnect described power relay if the duration of the described temperature difference within described predefined temperature range reaches predefined second time shorter than the described predefined very first time.
And, when the duration that the described temperature difference exceeds predefined temperature range reaches predefined time, connect described power relay.
Description of drawings
Fig. 1 is the control loop figure of existing air conditioner;
Fig. 2 is the another kind of control loop figure of existing air conditioner;
Fig. 3 is the cold-producing medium circulation schematic diagram according to air conditioner provided by the present invention;
The control block diagram of the air conditioner that Fig. 4 is provided for the foundation embodiment of the invention;
Fig. 5 is the sequential chart of the ruuning situation of air conditioner provided by the present invention when being used to refrigerating operaton is described;
Fig. 6 is the sequential chart of the ruuning situation of air conditioner provided by the present invention when being used to heating operation is described;
The control flow chart of the air conditioner control method that Fig. 7 a, 7b are provided for the foundation embodiment of the invention.
Main symbol description: 10 is compressor, and 20 is temperature setting portion, and 30 is control part; 31 is the power relay coil; 40 is overloading protector, and 40a is a bimetal leaf, and 41 is AC power; 42 is power relay; 50 is temperature difference calculating part, and 51 is Time Calculation portion, and 52 is display part; 60 is indoor temperature monitoring portion, and 61 is indoor heat converter pipe arrangement temperature monitoring portion.
The specific embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in Figure 3, comprise off-premises station A and indoor set B according to air conditioner provided by the present invention.Off-premises station A comprises compressor 10, cross valve 11, outdoor heat converter 12, electric expansion valve 13, reservoir 15.By switching cross valve 11, make the high-temperature high-pressure refrigerant of discharging from compressor 10 when refrigerating operaton, flow to outdoor heat converter 12, and when heating operation, flow to indoor heat converter 14.
One side of the discharging refrigerant of compressor 10 is connected to a side of outdoor heat converter 12 by cross valve 11.The opposite side of outdoor heat converter 12 is connected to the indoor heat converter 14 of indoor set B by refrigerant pipe W.On the refrigerant pipe between this outdoor heat converter 12 and the indoor heat converter 14 electric expansion valve 13 is set.
The outlet of indoor heat converter 14 is connected to a side of the suction cold-producing medium of compressor 10 afterwards through cross valve 11 and reservoir 15 by refrigerant pipe G.
Thus, when refrigerating operaton shown in dotted arrow, the cold-producing medium of discharging from compressor 10 is flowed through after cross valve 11, the outdoor heat converter 12 as condenser, electric expansion valve 13, the indoor heat converter 14 as evaporimeter, be recycled to through cross valve 11 compressor 10 the suction cold-producing medium a side and freeze to indoor.In addition, when heating operation shown in the solid line arrow, the cold-producing medium of discharging from compressor 10 is flowed through after cross valve 11, the indoor heat converter 14 as condenser, electric expansion valve 13, the outdoor heat converter 12 as evaporimeter, be recycled to through cross valve 11 compressor 10 the suction cold-producing medium a side and heat indoor.Label 18 is an outdoor fan in the accompanying drawing, and label 19 is an indoor fan.
As shown in Figure 4, the air conditioner with said structure comprises temperature setting portion 20, indoor temperature monitoring portion 60, indoor heat converter pipe arrangement temperature monitoring portion 61, overloading protector 40, power relay coil 31, power relay 42, temperature difference calculating part 50, Time Calculation portion 51 and display part 52.
Comprise as the main coil 10b of operation coil with as a side of the compressor 10 of the ancillary coil 10a of actuating coil and be connected to an electrode of AC power, and opposite side is connected on another electrode of AC power 41 through overloading protector 40 through overpower relay 42.
The input side of control part 30 with the temperature setting portion 20 of importing design temperature by the user, the indoor heat converter pipe arrangement temperature monitoring portion 61 that is used to detect the indoor temperature monitoring portion 60 of indoor temperature and is used to detect the pipe arrangement temperature of indoor heat converter 14 is electrically connected.
When being higher than the design temperature of setting by temperature setting portion 20 by indoor temperature monitoring portion 60 detected indoor temperatures, control part 30 makes power relay coil 31 be in excited state and connects power relay 42, makes compressor 10 operations thereby connect power supply to compressor 10.And when indoor temperature reached design temperature, control part 30 made power relay coil 31 finish excited state and disconnects power relay 42, thereby the power supply supply of cutting off compressor 10 makes compressor 10 out of service.
In the running of compressor 10, if monitor overcurrent by overloading protector 40, then overloading protector 40 is disconnected and makes compressor 10 out of service.And, crossed after the certain hour overloading protector 40 and be switched on again compressor 10 is moved once more.
As mentioned above; when filling quantitative cold-producing medium in the compressor; described overloading protector 40 can be disconnected before the compressor surface excessive temperature rises; but when taking place when unusual because of reasons such as cold-producing medium leakage cause service condition in the running of compressor 10; because the running current of compressor 10 sharply descends; therefore in order to satisfy the dump condition; bimetal leaf 40a just can be because of the thermal deformation bending under than the original state that sharply raises in the surface temperature of compressor 10, thereby causes in time cutting off the power supply supply of compressor 10.That is, owing to overloading protector 40 just moves under the state that compressor 10 surface temperatures excessively rise, so compressor might be burnt out.
For this reason, be electrically connected on the described control part 30 and be used to calculate respectively by the temperature difference calculating part 50 of the temperature difference between indoor temperature monitoring portion 60 and indoor heat converter pipe arrangement temperature monitoring portion 61 detected indoor temperatures and the indoor heat converter pipe arrangement temperature, be used to calculate the Time Calculation portion 51 of the duration of the temperature difference in predefined temperature range (for example 0 ℃～1 ℃) that is calculated by this temperature difference calculating part 50.The time that the temperature difference that described control part 30 is calculated by temperature difference calculating part 50 by 51 calculating of Time Calculation portion continues in predefined temperature range, when the time that calculates surpasses predefined time, be judged as the abnormal operating condition that causes because of cold-producing medium leakage etc. and force to disconnect power relay 42 and cut off the power supply supply of compressors 10, rise with the excessive temperature that prevents compressor 10.And the outlet side of control part 30 is electrically connected with display part 52, and control part 30 is warned abnormal operating condition by display part 52 to the user.
Illustrate the ruuning situation of control part 30 below with reference to Fig. 5 and Fig. 6.When carrying out refrigerating operaton or heating operation, in order to utilize indoor temperature and indoor heat converter pipe arrangement temperature monitoring cold-producing medium to leak the abnormal operating condition that causes, from the moment that compressor 10 is connected power supply, when the temperature difference between indoor temperature and the indoor heat converter pipe arrangement temperature reaches during in the compressor initial start less than duration of 1 ℃ when reaching predefined second time (for example 20 minutes) in the predefined very first time (for example 30 minutes) or the starting afterwards, disconnect power relay 42 and cut off the power supply supply of compressor 10, thus close compressor 10.Constantly through after 80 minutes, connect power relay 42 from this, compressor 10 is reruned.At this moment, described during described compressor initial start preestablishes the time and described when starting once more later preestablishes the time and inequality, and the time that preestablishes during the compressor initial start preestablishes the time when starting once more later.
In addition; in the course of action of overloading protector 40; if the temperature difference between indoor temperature and the indoor heat converter pipe arrangement temperature exceeds 1 ℃ duration greater than predefined time (for example 5 minutes), then remove compressor 10 is normally moved to power of compressor control.
As shown in Figure 5; for the prior art that adopts the overloading protector 40 that only has a bimetal leaf 40a; when refrigerating operaton; if the abnormal operating condition that generation cold-producing medium leakage etc. causes; then because the running current of compressor 10 is relatively low; therefore when 165 ℃ of limiting temperatures allowable that exceed compressor 10 up to the surface temperature of compressor 10 were near 200 ℃, overloading protector 40 just was disconnected the power supply supply that makes compressor 10 and is cut off.And utilize the present invention; even adopt described overloading protector 40; the also abnormal operating condition that can cause by the temperature difference between indoor temperature and the indoor heat converter pipe arrangement temperature and duration monitoring refrigerant leakage thereof etc.; make that power relay 42 is forced to disconnect and close compressor under 150 ℃ of temperature that are lower than 165 ℃ of compressor limiting temperatures allowable, thereby can prevent in advance that compressor temperature from excessively rising.In addition, like this too during heating operation.
Thus; therefore identical performance when adopting overloading protector 40 cheap for manufacturing cost and that control according to electric current and temperature simultaneously also can bring into play with the overloading protector of controlling respectively according to electric current and temperature that adopts high price can reduce whole manufacturing cost when not weakening the overload protection performance of compressor 10.
Further describe the ruuning situation of described control part 30 with reference to accompanying drawing 7a, 7b.At first, control part 30 is connected power relay 42 at step S100 and is made compressor 10 operations.
Then; for the abnormal operating condition of judging that cold-producing medium leakage etc. causes; promptly overloading protector 40 does not disconnect yet under the state of compressor surface temperature overheating; make compressor 10 continue to connect the situation of power supply; control part 30 detects indoor temperature T1 at step S101 by indoor temperature monitoring portion 60, detects indoor heat converter pipe arrangement temperature T 2 at step S102 by indoor heat converter pipe arrangement temperature monitoring portion 61.
Calculate the temperature difference (Δ T=T1-T2) between detected indoor temperature T1 and the indoor heat converter pipe arrangement temperature T 2 at step S103, judge that at step S104 the temperature difference is whether within predefined temperature range (for example below 1 ℃), if the temperature difference is below 1 ℃, then at step S105 calculating prolongeding time and judge whether the time of described state continuance exceeds the predefined time (for example 30 minutes).
The judged result of step S104 does not continue more than 30 minutes at the state below 1 ℃ if the described temperature difference exceeds 1 ℃ or the temperature difference, then owing to do not meet the misoperation situation that cold-producing medium leakage etc. causes, jumps to step S116 and normally moves compressor 10.
In addition, the judged result of step S105 meets the misoperation situation that cold-producing medium leakage etc. causes if the described temperature difference at the state continuance below 1 ℃ more than 30 minutes, is then thought, thereby disconnect power relay 42 at step S106 compressor 10 cuts out.Thus; even the running current that causes compressor 10 is low to make overloading protector 40 not to be disconnected because of cold-producing medium leaks; also can under 150 ℃ of temperature that are lower than 165 ℃ of compressor limiting temperatures allowable, force to disconnect power relay 42 and close compressor 10, thereby can prevent that compressor 10 excessive temperature from rising.
After the close compressor 10, calculate compressor at step S107 and be closed the time of rising constantly, and the time of judge calculating whether reach the predefined time (for example 80 minutes), if reach 80 minutes, connect power relay 42 at step S108 compressor 10 moved once more.
Then, in order to judge whether to meet the misoperation situation that cold-producing medium leakage etc. causes once more, detect indoor temperature T1 ' at step S109 by indoor temperature monitoring portion 60, step S110 by indoor heat converter pipe arrangement temperature monitoring portion 61 detect indoor heat converter pipe arrangement temperature T 2 '.
Step S111 calculate detected indoor temperature T1 ' and indoor heat converter pipe arrangement temperature T 2 ' between the temperature difference (Δ T '=T1 '-T2 '), judge that at step S112 the temperature difference is whether within predefined temperature range (for example below 1 ℃).
The judged result of step S112 if described temperature difference T ' exceeds 1 ℃, then judges at step S115 whether the time that described temperature difference T ' exceeds 1 ℃ state continuance exceeds the predefined time (for example 5 minutes).The judged result of step S115 is if described state fails to continue then to return step S109 more than 5 minutes.In addition, exceed 1 ℃ state continuance more than 5 minutes if the judged result of step S115 is described temperature difference T ', then leak the abnormal operating condition that causes owing to meet cold-producing medium, therefore entering step S116 normally moves compressor.At this moment, in normal operation compressor,, then deleted if show the information of the warning misoperation that will mention in the back.
In addition, if the judged result of step S112 is that the described temperature difference is below 1 ℃, then calculate the time of described temperature difference T ' at the state continuance below 1 ℃ at step S113, and whether the time of judging described state continuance exceeds the predefined time (time of weak point during the ratio piston compressor initial start, for example 20 minutes).If the judged result of step S113 is a described state continuance more than 20 minutes, then showing the information of warning misoperations by display part 52 when, step S114 turns back to the step of step S106 below carrying out.In addition, do not continue more than 20 minutes, think that then not meeting cold-producing medium leaks the abnormal operating condition that causes, normally moves compressor 10 thereby enter step S116 if the judged result of step S113 is described state.
In sum; the present invention adopts simultaneously the overloading protector of controlling according to electric current and temperature; and based on the temperature difference between indoor heat converter pipe arrangement temperature and the indoor temperature and duration thereof predict because of reasons such as cold-producing medium leakage make the low overloading protector that causes of compressor current value disconnect before compressor temperature situation about excessively rising, when predicting this situation, cut off the power of compressor supply and excessively rise to prevent compressor temperature.Thus; therefore identical performance when adopting overloading protector cheap for manufacturing cost and that control according to electric current and temperature simultaneously also can bring into play with the overloading protector of controlling respectively according to electric current and temperature that adopts high price can reduce whole manufacturing cost when not weakening the overload protection performance of compressor.
Claims (11)
1, a kind of air conditioner is characterized in that comprising:
Overloading protector cuts off described power of compressor supply to be used for moving according to the temperature of compressor and electric current;
Power relay makes described compressor operating or stops by being switched on or switched off action being used for;
Indoor temperature monitoring portion is to be used to detect indoor temperature;
Indoor heat converter pipe arrangement temperature monitoring portion is to be used to detect the pipe arrangement temperature of indoor heat converter;
Control part is to be used for controlling according to the temperature difference between described indoor temperature that is detected and the indoor heat converter pipe arrangement temperature action of described power relay.
2, air conditioner according to claim 1, it is characterized in that described control part disconnects described power relay when the duration of the temperature difference within predefined temperature range between described indoor temperature and the indoor heat converter pipe arrangement temperature reaches predefined time.
3, air conditioner according to claim 2 is characterized in that described control part passes through the predefined time and connects described power relay after described power relay disconnects.
4, air conditioner according to claim 2, described predefined time when it is characterized in that described compressor initial start and the described predefined time when starting once more later are different.
5, air conditioner according to claim 4, the described predefined time of the described predefined time when it is characterized in that described compressor initial start when starting once more later.
6, air conditioner according to claim 1 is characterized in that comprising the temperature difference calculating part that is used to calculate the temperature difference between described indoor temperature and the indoor heat converter pipe arrangement temperature, is used to calculate the Time Calculation portion of the described duration of the temperature difference that calculates within predefined temperature range.
7, a kind of control method of air conditioner; this air conditioner comprise according to the temperature of compressor and electric current move the overloading protector that cuts off described power of compressor supply with by being switched on or switched off the power relay that action makes described compressor operating or stops, it is characterized in that comprising step:
Detect indoor temperature;
Detect the pipe arrangement temperature of indoor heat converter;
Control the action of described power relay according to the temperature difference between described indoor temperature that is detected and the indoor heat converter pipe arrangement temperature.
8, air conditioner control method according to claim 7 is characterized in that disconnecting described power relay when the duration of the described temperature difference within predefined temperature range reaches predefined time.
9, air conditioner control method according to claim 8 is characterized in that connecting described power relay through the predefined time after described power relay is disconnected.
10, air conditioner control method according to claim 8, it is characterized in that when described compressor initial start, if the duration of the described temperature difference within described predefined temperature range reaches the predefined very first time, then disconnect described power relay; When starting once more later on,, then disconnect described power relay if the duration of the described temperature difference within described predefined temperature range reaches predefined second time shorter than the described predefined very first time.
11, air conditioner control method according to claim 8 is characterized in that connecting described power relay when the duration that the described temperature difference exceeds predefined temperature range reaches predefined time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060053670 | 2006-06-14 | ||
| KR1020060053670A KR20070119272A (en) | 2006-06-14 | 2006-06-14 | Air conditioner and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101089505A true CN101089505A (en) | 2007-12-19 |
Family
ID=38933001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101515000A Pending CN101089505A (en) | 2006-06-14 | 2006-09-12 | Air conditioning and control method thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2007333370A (en) |
| KR (1) | KR20070119272A (en) |
| CN (1) | CN101089505A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929719A (en) * | 2010-08-27 | 2010-12-29 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
| CN102481824A (en) * | 2009-08-25 | 2012-05-30 | 标致·雪铁龙汽车公司 | Air-conditioning having an onboard compressor power estimator |
| CN102486327A (en) * | 2010-12-02 | 2012-06-06 | 乐金电子(天津)电器有限公司 | Cold treatment method for temperature of air-conditioner pipe |
| CN105066370A (en) * | 2015-09-02 | 2015-11-18 | 珠海格力电器股份有限公司 | Compressor overload protection control method and device and air conditioner |
| CN105091185A (en) * | 2014-04-22 | 2015-11-25 | 海信（山东）空调有限公司 | Method and device used for controlling air conditioner and air conditioner |
| CN105783180A (en) * | 2014-12-22 | 2016-07-20 | 广东美的制冷设备有限公司 | Air conditioner and protection method and device of variable frequency module in air conditioner |
| CN106150999A (en) * | 2016-07-04 | 2016-11-23 | 珠海格力电器股份有限公司 | Method and device for detecting and controlling overload protection of compressor |
| CN109442674A (en) * | 2018-11-01 | 2019-03-08 | Tcl空调器(中山)有限公司 | Compressor of air conditioner guard method, unit, storage medium and air conditioner |
| CN110617606A (en) * | 2019-09-23 | 2019-12-27 | 芜湖美智空调设备有限公司 | Air conditioner and control method and system thereof |
| CN110779161A (en) * | 2019-11-18 | 2020-02-11 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
| CN111189176A (en) * | 2018-11-14 | 2020-05-22 | 青岛海尔空调器有限总公司 | Air conditioner and anti-freezing control method thereof |
| CN111771091A (en) * | 2018-03-05 | 2020-10-13 | 松下知识产权经营株式会社 | Refrigeration cycle device |
| CN111854071A (en) * | 2020-06-09 | 2020-10-30 | 海信（山东）空调有限公司 | Switch input circuit and air conditioner |
| CN112833596A (en) * | 2021-01-21 | 2021-05-25 | 四川长虹空调有限公司 | Method for judging state of refrigerant of refrigerating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10823444B2 (en) | 2017-03-31 | 2020-11-03 | Johnson Controls Technology Company | Pressure control device |
| CN110500711B (en) * | 2019-08-13 | 2023-09-08 | 珠海格力电器股份有限公司 | Temperature limiting protection control method, device and system |
| CN111023264A (en) * | 2019-12-25 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method thereof |
-
2006
- 2006-06-14 KR KR1020060053670A patent/KR20070119272A/en not_active Application Discontinuation
- 2006-09-06 JP JP2006241842A patent/JP2007333370A/en active Pending
- 2006-09-12 CN CNA2006101515000A patent/CN101089505A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102481824B (en) * | 2009-08-25 | 2016-01-06 | 标致·雪铁龙汽车公司 | There is the air-conditioning of the vehicle-mounted power estimator of compressor |
| CN102481824A (en) * | 2009-08-25 | 2012-05-30 | 标致·雪铁龙汽车公司 | Air-conditioning having an onboard compressor power estimator |
| CN101929719B (en) * | 2010-08-27 | 2012-07-18 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
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| Publication number | Publication date |
|---|---|
| JP2007333370A (en) | 2007-12-27 |
| KR20070119272A (en) | 2007-12-20 |
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