CN101256011A - Air conditioner - Google Patents
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- CN101256011A CN101256011A CNA2007100848167A CN200710084816A CN101256011A CN 101256011 A CN101256011 A CN 101256011A CN A2007100848167 A CNA2007100848167 A CN A2007100848167A CN 200710084816 A CN200710084816 A CN 200710084816A CN 101256011 A CN101256011 A CN 101256011A
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Abstract
The invention provides an air conditioner comprising an indoor set and an outdoor set. The indoor set at least comprises an indoor heat exchanger, and the outdoor set at least comprises a compressor, an outdoor heat exchanger, a throttling device, an outdoor fan used for the outdoor heat exchanger, and a low pressure detection device at the inhalation side of the compressor, wherein a control device controlling at least the compressor and the outdoor fan is disposed in the outdoor set, stops the compressor when low pressure abnormality is detected by the low pressure detection device during the operation process of the air conditioner, and controls start of the outdoor fan at the same time according to times of low pressure generation of the compressor. The inventive air conditioner facilitates protection of the compressor, elongates life of the compressor and assures normal operation of the air conditioner.
Description
Technical field
The present invention relates to air-conditioner, specifically, can reduce the air-conditioner of negative pressure when relating to a kind of cryogenic refrigeration.
Background technology
Existing air-conditioner comprises indoor set and off-premises station, described indoor set comprises indoor heat converter (evaporimeter) at least, described off-premises station comprises compressor, outdoor heat converter (condenser) and throttling arrangement at least, and described compressor, outdoor heat converter, throttling arrangement and indoor heat converter connect into basic kind of refrigeration cycle by tube connector.
When the lower or interior outer connecting pipe of ambient temperature is longer, be easy to generate negative pressure during " refrigeration " running.In order to reduce the appearance of negative pressure, can improve throttling arrangement.
Throttling arrangement can adopt electromagnetic expanding valve, opens greatly by making expansion valve, improves low pressure, negative pressure occurs thereby reduce.But utilization electromagnetic expanding valve cost is higher relatively.
Throttling arrangement also can adopt capillary frequency system surely, reduces negative pressure by control room external fan start-stop.But, at throttling arrangement is capillary surely frequently during system, reduces negative pressure by the control room external fan, concrete grammar be the control room external fan start-stop (for example, outdoor fan running one-period is: 4 seconds, wherein start 3 seconds, stop 1 second) improve high pressure, drive low pressure and raise, reduce negative pressure and take place, but negative pressure is in case take place, compressor continuous several times startup in the case stops, and can not return to normal operation soon, thereby influence system's operation.
Summary of the invention
In order to overcome the defective of described prior art, the object of the present invention is to provide a kind of air-conditioner, comprise indoor set and off-premises station, described indoor set comprises indoor heat converter at least, described off-premises station comprises compressor at least, outdoor heat converter, throttling arrangement, be used for the outdoor fan of described outdoor heat converter and the low pressure checkout gear of described compressor suction side, also be provided with the control device of controlling described compressor and outdoor fan at least in the wherein said off-premises station, in the air-conditioner operation process when described low pressure checkout gear detects ultra-low pressure, described control device stops compressor, and controls the startup of described outdoor fan simultaneously according to the number of times of described compressor generation ultra-low pressure.
According to the described air-conditioner of an embodiment of the invention, wherein said control device is controlled the delay start time of described outdoor fan according to the number of times of compressor generation ultra-low pressure.In addition, the described delay start time prolongs according to the increase of the number of times of compressor generation ultra-low pressure.
Described according to another implementation of the invention air-conditioner also is provided with outdoor gas temperature checkout gear in the wherein said off-premises station, the outdoor gas temperature when described control device is restarted according to compressor comes the delay start time of revisal outdoor fan.
According to the described air-conditioner of another embodiment of the present invention, also be provided with the outdoor heat converter temperature-detecting device in the wherein said off-premises station, the outdoor heat converter temperature when described control device is restarted according to compressor is come the delay start time of revisal outdoor fan.
Described according to another implementation of the invention air-conditioner, wherein said control device are controlled the low rate start time of described outdoor fan according to the number of times of compressor generation ultra-low pressure.In addition, the described low rate start time prolongs according to the increase of the number of times of compressor generation ultra-low pressure.
According to the described air-conditioner of another embodiment of the present invention, also be provided with outdoor gas temperature checkout gear in the wherein said off-premises station, the outdoor gas temperature when described control device is restarted according to compressor comes the low rate start time of revisal outdoor fan.
According to the described air-conditioner of another embodiment of the present invention, also be provided with the outdoor heat converter temperature-detecting device in the wherein said off-premises station, the outdoor heat converter temperature when described control device is restarted according to compressor is come the low rate start time of revisal outdoor fan.
The present invention can solve negative pressure problem better.Especially be capillary surely frequently in the system at throttling arrangement, reduce negative pressure by the control room external fan.Behind the reducing of negative pressure, the also corresponding minimizing of compressor start-stop time, the assurance system returns to normal condition very soon.
Air-conditioner of the present invention can solve the negative pressure problem that occurs in the prior art better, especially be that capillary is surely frequently in the system at throttling arrangement, reduce the generation of negative pressure by the control room external fan, behind the reducing of negative pressure, the also corresponding minimizing of compressor start-stop time, the assurance system returns to normal condition very soon.Air-conditioner of the present invention helps the protection of compressor, prolongs the compressor life-span, guarantees that air-conditioner normally moves.
Description of drawings
Fig. 1 is the schematic diagram of air-conditioner of the present invention;
Fig. 2 is the workflow diagram according to the air-conditioner of an embodiment of the invention;
Fig. 3 is the schematic diagram of the operation principle of the compressor of Fig. 2 and outdoor fan;
Fig. 4 is the workflow diagram of air-conditioner according to another implementation of the invention;
Fig. 5 is the schematic diagram of the operation principle of the compressor of Fig. 4 and outdoor fan;
Fig. 6 a shows to come the figure of the delay start time of revisal outdoor fan by outdoor gas temperature that Fig. 6 b shows to come the figure of the delay start time of revisal outdoor fan by the outdoor heat converter temperature.
The specific embodiment
The present invention will be described in more detail below in conjunction with drawings and Examples.
As shown in Figure 1, air-conditioner of the present invention comprises off-premises station X and indoor set Y, described indoor set X comprises indoor heat converter 4 at least, described off-premises station Y comprises compressor 1, outdoor heat converter 2, throttling arrangement 3, control device 5, outdoor gas temperature checkout gear 6 at least, be used for the outdoor fan 7 of described outdoor heat converter and be arranged on described compressor suction side low pressure checkout gear 8, outdoor heat converter temperature-detecting device 9, be arranged on the high pressure checkout gear 10 of described compressor outlet side.
Wherein, compressor 1, outdoor heat converter 2, throttling arrangement 3 and indoor heat converter 4 are connected to become kind of refrigeration cycle by the refrigerant pipe.At first, the low pressure gaseous coolant is inhaled in the compressor 1, forms the gaseous coolant of HTHP in compressor 1; Gaseous coolant flow to outdoor heat converter 2, and in outdoor heat radiation process, condensation becomes the high-pressure liquid refrigerant gradually, and simultaneously, described heat radiation process is regulated by the start-stop of outdoor fan 7; Subsequently, refrigerant is by throttling arrangement 3 step-downs, cooling simultaneously, thereby become the gas-liquid refrigerant mixture of low-temp low-pressure, enter indoor heat converter 4, carry out heat exchange indoor, performance reduces the effect of indoor temperature, from and become low pressure refrigerant, flow into again in the compressor 1, carry out new kind of refrigeration cycle.
In above-mentioned kind of refrigeration cycle, a side (low-pressure side) that sucks the low pressure gaseous coolant at compressor 1 is provided with the pressure that low pressure checkout gear 8 detects the low pressure gaseous coolant, and sends detected ultra-low pressure signal (negative pressure signal) to control device 5; Side (high-pressure side) at compressor 1 output high-pressure liquid refrigerant is provided with the pressure that high pressure checkout gear 10 detects the high-pressure liquid refrigerant, and sends detected high pressure abnormal signal to control device 5; On outdoor heat converter 2, also be provided with outdoor heat converter temperature-detecting device 9, send the temperature of detected outdoor heat converter 2 to control device 5; In addition, in off-premises station, also be provided with outdoor gas temperature checkout gear 6, send detected outdoor gas temperature to control device 5.Control device 5 is by receiving the signal from outdoor gas temperature checkout gear 6, low pressure checkout gear 8 and outdoor heat converter temperature-detecting device 9, high pressure checkout gear 10, control the running of described compressor 1 and outdoor fan 7, thereby prevent the negative pressure appearance that air-conditioner is easy to generate when freezing under low temperature environment.Detailed content is described hereinafter.
First embodiment
In Fig. 2, Ps represents compressor suction side pressure, Ps
0Expression low pressure lower limit, n represents the number of times of compressor generation ultra-low pressure, n
SetMaximum number of times of the compressor generation ultra-low pressure of expression default, t
xThe expression control device is judged the setting-up time whether ultra-low pressure takes place when starting, t
cStand-by time when expression compressor and outdoor fan stop simultaneously, t
nThe delay start time of outdoor fan when the n time ultra-low pressure takes place the expression compressor, To represents outdoor gas temperature, and Te represents the outdoor heat converter temperature.
As shown in Figure 2, open when air-conditioner, compressor and outdoor fan start simultaneously, this moment n=0, promptly ultra-low pressure does not take place in compressor; In the process that compressor and outdoor fan start simultaneously, the low pressure checkout gear detects the pressure P s of low-pressure side, and sends pressure signal to control device.
As Ps 〉=Ps
0The time, control device utilizes the tx time to judge whether to take place ultra-low pressure, if be judged as ultra-low pressure does not take place, and then controls compressor and outdoor fan and normally starts (remaining in operation), at this moment n=0; If control device is judged as the generation ultra-low pressure, then the low pressure checkout gear carries out the detection of low-pressure lateral pressure again.
As Ps＜Ps
0The time, then control device is judged as compressor generation ultra-low pressure, and this moment controls compressor and outdoor fan all stops, at this moment n=1; Simultaneously, judge n and n by control device
SetBetween the relation.
When control device is judged n＞n
Set, that is, the number of times of compressor generation ultra-low pressure surpasses maximum number of times of the compressor generation ultra-low pressure of default, and then control device control compressor and outdoor fan stop, and air-conditioner is reported to the police.
When control device is judged n≤n
Set, that is, the number of times of compressor generation ultra-low pressure is no more than maximum number of times of the compressor generation ultra-low pressure of default, then control device control compressor and outdoor fan standby, and stand-by time is set at t
c
t
cAfter time, compressor is restarted, and this moment, outdoor fan still stopped.Simultaneously, outdoor gas temperature checkout gear detects To, and the outdoor heat converter temperature-detecting device detects Te, and sends detection signal to control device respectively, calculates t by control device according to a preceding compressor delay start time and To and Te
nSubsequently, come the delay start time t of control room external fan by control device
n, this time is come timing by timer.
When outdoor fan postpones t
nRestart the timer zero clearing after time.At this moment, the low pressure checkout gear detects low-pressure side Ps again, restarts said process.
In Fig. 3, t
1The delay start time of outdoor fan when the 1st ultra-low pressure takes place the expression compressor, t
2The delay start time of outdoor fan when the 2nd ultra-low pressure takes place the expression compressor, t
nThe delay start time of outdoor fan when the n time ultra-low pressure takes place the expression compressor, t
cStand-by time (time that high-low pressure is all pressed was generally about 3 minutes) when expression compressor and outdoor fan stop simultaneously.
As shown in Figure 3, when outdoor fan and compressor all stopped (off), the pressure of the pressure of compressor outlet side (high-pressure side) and compressor suction side (low-pressure side) was in equilibrium pressure.
When outdoor fan and compressor start (on), and when carrying out kind of refrigeration cycle under low temperature environment, the on high-tension side pressure of compressor constantly raises, and the pressure of compressor low-pressure side constantly descends.
Because air-conditioner freezes under low temperature environment, declining by a big margin of low-pressure lateral pressure, the pressure that detects compressor when the low pressure checkout gear for the 1st time is lower than down in limited time, send this ultra-low pressure signal to control device, be judged as after the 1st ultra-low pressure takes place compressor by control device, control compressor and fan stop simultaneously preventing that low-pressure lateral pressure from further descending.
The stand-by time t that stops simultaneously for the 1st time at compressor and fan
cIn, high side pressure and low-pressure lateral pressure all return back to equilibrium pressure gradually.t
cAfter time, control device control compressor is restarted, and the control room external fan stops t
1Restart after time, that is, the outdoor fan ratio piston compressor postpones t
1Time starts.At t
1In time, because outdoor fan stops, the outdoor heat converter heat radiation is slow, and therefore under the drive of high side pressure, the low-pressure lateral pressure fall is slowed down.
t
1After time, outdoor fan is restarted, and and compressor turn round simultaneously, at this moment, high side pressure continues to raise gradually, and the pressure of compressor low-pressure side continues to descend gradually, but because through the outdoor fan delay start, the low-pressure lateral pressure fall is slowed down, thereby has reduced the possibility that ultra-low pressure appears in compressor once more.
However, still the ultra-low pressure situation may appear in the kind of refrigeration cycle of low temperature environment.Therefore, the pressure that detects compressor when the low pressure checkout gear for the 2nd time is lower than down in limited time, send this ultra-low pressure signal to control device, be judged as after the 2nd ultra-low pressure takes place compressor by control device, control compressor and fan stop simultaneously preventing that low-pressure lateral pressure from further descending.。
The stand-by time t that stops simultaneously for the 2nd time at compressor and fan
cIn, high side pressure and low-pressure lateral pressure all return back to equilibrium pressure gradually.t
cAfter time, control device control compressor is restarted, and the control room external fan further stops t
2Restart after time, that is, the outdoor fan ratio piston compressor postpones t
2Time starts.t
2Be that control device is according to the 1st delay start time t
1And in conjunction with outdoor gas temperature and outdoor heat converter temperature to the revisal of delay start time and calculate (hereinafter will describe in detail) and t
2＞t
1
At t
2In time, because outdoor fan stops, the outdoor heat converter heat radiation is slow, and because t
2＞t
1, therefore under the drive of high side pressure, the low-pressure lateral pressure fall is further slowed down.
t
2After time, outdoor fan is restarted, and and compressor turn round simultaneously, at this moment, high side pressure continues to raise gradually, and the pressure of compressor low-pressure side continues to descend gradually, but because through preceding twice outdoor fan delay start, the low-pressure lateral pressure fall is further slowed down, thereby has further reduced the possibility that occurs ultra-low pressure once more.
Be appreciated that delay start through the n time outdoor fan, and t
n＞...＞t
2＞t
1, the reduction amplitude of low-pressure lateral pressure can constantly reduce, so the probability of compressor generation ultra-low pressure constantly reduces.
Although it should be noted that t
nTime is long more, and the reduction amplitude of low-pressure lateral pressure is more little, is not easy to produce ultra-low pressure more, but t
nShould limit to some extent, can not be excessive, in order to avoid cause high side pressure to rise, detected high pressure abnormal signal is sent to control device and causes air-conditioner to quit work and cause the high pressure checkout gear until the overpressure upper limit.
Second embodiment
Symbol shown in Figure 4 is same as shown in Figure 2, except t
nThe low rate start time of representing outdoor fan when the n time ultra-low pressure takes place compressor in the present embodiment.
As shown in Figure 4, open when air-conditioner, compressor and outdoor fan start simultaneously, this moment n=0, promptly ultra-low pressure does not take place in compressor; In the process that compressor and outdoor fan start simultaneously, the low pressure checkout gear detects the pressure of low-pressure side, and sends pressure signal to control device.
As Ps 〉=Ps
0The time, send pressure signal to control device after, utilize the tx time to judge whether to take place ultra-low pressure by control device, ultra-low pressure does not take place if be judged as, then compressor and outdoor fan normally start (remaining in operation), this moment n=0; If control device is judged as the generation ultra-low pressure, then the low pressure checkout gear carries out the detection of low-pressure lateral pressure again.
As Ps＜Ps
0The time, then control device is judged as compressor generation ultra-low pressure, and this timed unit control compressor and outdoor fan all stop, at this moment n=1; Simultaneously, judge n and n by control device
SetBetween the relation.
When control device is judged n＞n
Set, that is, the number of times of compressor generation ultra-low pressure surpasses maximum number of times of the compressor generation ultra-low pressure of default, and then control device control compressor and outdoor fan stop, and air-conditioner is reported to the police.
When control device is judged n≤n
Set, that is, the number of times of compressor generation ultra-low pressure is no more than maximum number of times of the compressor generation ultra-low pressure of default, then control device control compressor and outdoor fan standby, and stand-by time is set at t
c
Through t
cAfter time, new normal startup of weight of compressor, and outdoor fan low rate start (low air quantity starts).Simultaneously, outdoor gas temperature checkout gear detects To, and the outdoor heat converter temperature-detecting device detects Te, and sends detection signal to control device respectively, calculates t by control device according to a preceding low rate start time and To and Te
nComing the low rate start time of control room external fan by control device is t
n, this time is come timing by timer.
As outdoor fan low rate start t
nAfter time, return to normal startup, the timer zero clearing.At this moment, the low pressure checkout gear detects low-pressure side Ps again, restarts said process.
Symbol shown in Figure 5 is same as shown in Figure 3.
As shown in Figure 5, when outdoor fan and compressor all stopped (off), the pressure of the pressure of compressor outlet side (high-pressure side) and compressor suction side (low-pressure side) was in equilibrium pressure.
When compressor and outdoor fan all start (on), and when under low temperature environment, carrying out kind of refrigeration cycle.In outdoor fan and compressor operation process, the on high-tension side pressure of compressor constantly raises, and the pressure of compressor low-pressure side constantly descends.
Because air-conditioner freezes under low temperature environment, declining by a big margin of low-pressure lateral pressure, the pressure that detects compressor when the low pressure checkout gear for the 1st time is lower than down in limited time, send this ultra-low pressure signal to control device, be judged as after the 1st ultra-low pressure takes place compressor by control device, control compressor and fan stop simultaneously preventing that low-pressure lateral pressure from further descending.
The stand-by time t that stops simultaneously for the 1st time at compressor and fan
cIn, high side pressure and low-pressure lateral pressure all return back to equilibrium pressure gradually.t
cAfter time, control device control compressor and outdoor fan are restarted, and wherein compressor normally starts, and outdoor fan low rate start (low air quantity starts), promptly at the normal t that starts of compressor
1In time, outdoor fan low rate start t
1Time.At t
1In time, because the outdoor fan low rate start, the outdoor heat converter heat radiation is slow, and therefore under the drive of high side pressure, the low-pressure lateral pressure fall is slowed down.
t
1After time, outdoor fan returns to rated speed, and and compressor turn round simultaneously, at this moment, high side pressure continues to raise gradually, and the pressure of compressor low-pressure side continues to descend gradually, but because through the outdoor fan low rate start, the low-pressure lateral pressure fall is slowed down, thereby has reduced the possibility that ultra-low pressure appears in compressor once more.
However, still the ultra-low pressure situation may appear in the kind of refrigeration cycle of low temperature environment.Therefore, the pressure that detects compressor when the low pressure checkout gear for the 2nd time is lower than down in limited time, send this ultra-low pressure signal to control device, be judged as after the 2nd ultra-low pressure takes place compressor by control device, control compressor and fan stop simultaneously preventing that low-pressure lateral pressure from further descending.
The stand-by time t that stops simultaneously for the 2nd time at compressor and fan
cIn, high side pressure and low-pressure lateral pressure all return back to equilibrium pressure gradually.t
cAfter time, control device control compressor and outdoor fan are restarted, and wherein compressor normally starts, and outdoor fan low rate start (low air quantity starts), promptly at the normal t that starts of compressor
2In time, outdoor fan low rate start t
2Time.t
2Be that control device is according to the 1st low rate start time t
1And in conjunction with outdoor gas temperature and outdoor heat converter temperature to the revisal of low rate start time and calculate (hereinafter will describe in detail) and t
2＞t
1
At t
2In time, because the outdoor fan low rate start, the outdoor heat converter heat radiation is slow, and because t
2＞t
1, therefore under the drive of high side pressure, the low-pressure lateral pressure fall is further slowed down.
t
2After time, outdoor fan returns to normal startup, and and compressor turn round simultaneously, at this moment, high side pressure continues to raise gradually, and the pressure of compressor low-pressure side continues to descend gradually, but because through preceding twice outdoor fan low rate start, the low-pressure lateral pressure fall is further slowed down, thereby has further reduced the possibility that occurs ultra-low pressure once more.
Be appreciated that low rate start through the n time outdoor fan, and t
n＞...＞t
2＞t
1, the reduction amplitude of low-pressure lateral pressure can constantly reduce, so the probability of compressor generation ultra-low pressure constantly reduces.
Although it should be noted that t
nTime is long more, and the reduction amplitude of low-pressure lateral pressure is more little, is not easy to produce ultra-low pressure more, but t
nShould limit to some extent, can not be excessive, in order to avoid cause high side pressure to rise, detected high pressure abnormal signal is sent to control device and causes air-conditioner to quit work and cause the high pressure checkout gear until the overpressure upper limit
The 3rd embodiment
In Fig. 6 a and Fig. 6 b, the delay start time of outdoor fan (or low rate start time) is formula t rule of thumb
n=t
N-1* α * β * γ calculates, wherein t
N-1The delay start time (or low rate start time) of outdoor fan when the n-1 time ultra-low pressure takes place the expression compressor, t
nThe delay start time (or low rate start time) of outdoor fan, wherein t when the n time ultra-low pressure takes place the expression compressor
n＞t
N-1, t
N-1〉=0; α represents the augmenting factor of outdoor gas temperature to the delay start time (or low rate start time) of outdoor fan; β represents the augmenting factor of outdoor heat converter temperature to the delay start time (or low rate start time) of outdoor fan; γ represents the constant greater than 1; To represents outdoor gas temperature; Te represents the outdoor heat converter temperature.
Shown in Fig. 6 a, the relation of To and α is inversely proportional to, that is, when To raise, then α descended.Therefore, when outdoor gas temperature is high more, the delay start time of outdoor fan (or low rate start time) is then short more.For example, when outdoor gas temperature checkout gear detected To and is 3 ℃, corresponding α was 1.2; When outdoor gas temperature checkout gear detected To and rises to 10 ℃, corresponding α dropped to 1.0.Therefore, after outdoor gas temperature checkout gear detects outdoor gas temperature, signal is passed to control device, control device can be extrapolated α according to above-mentioned figure about To and α, thereby further extrapolates t
n
Shown in Fig. 6 b, the relation of Te and β is inversely proportional to, that is, when Te raise, then β descended.Therefore, when the outdoor heat converter temperature is high more, the delay start time of outdoor fan (or low rate start time) is then short more.For example, when the outdoor heat converter temperature-detecting device detected Te and is 4 ℃, corresponding β was 1.1; When the outdoor heat converter temperature-detecting device detected Te and rises to 10 ℃, corresponding β dropped to 1.0, and when the outdoor heat converter temperature-detecting device further detects Te for rising 15 ℃ the time, corresponding β further drops to 0.8.Therefore, after the outdoor heat converter temperature-detecting device detects the outdoor heat converter temperature, signal is passed to control device, control device can be extrapolated β according to above-mentioned figure about Te and β, thereby further extrapolates t
n
Though below in conjunction with the accompanying drawings and embodiments the present invention is specified, is appreciated that described explanation does not limit the present invention in any form.Those skilled in the art can be out of shape and change the present invention as required under the situation that does not depart from connotation of the present invention and scope, and these distortion and variation all fall within the scope of the present invention.
Claims (9)
1. air-conditioner, comprise indoor set and off-premises station, described indoor set comprises indoor heat converter at least, described off-premises station comprises compressor, outdoor heat converter, throttling arrangement at least, is used for the outdoor fan of described outdoor heat converter and the low pressure checkout gear of described compressor suction side, it is characterized in that:
Also be provided with the control device of controlling described compressor and outdoor fan at least in the described off-premises station, in the air-conditioner operation process when described low pressure checkout gear detects ultra-low pressure, described control device stops compressor, and controls the startup of described outdoor fan simultaneously according to the number of times of described compressor generation ultra-low pressure.
2. air-conditioner according to claim 1 is characterized in that: described control device is controlled the delay start time of described outdoor fan according to the number of times of compressor generation ultra-low pressure.
3. air-conditioner according to claim 2 is characterized in that: the increase of described delay start time according to the number of times of compressor generation ultra-low pressure prolongs.
4. according to claim 2 or 3 described air-conditioners, it is characterized in that: also be provided with outdoor gas temperature checkout gear in the described off-premises station, the outdoor gas temperature when described control device is restarted according to compressor comes the delay start time of revisal outdoor fan.
5. according to claim 2 or 3 described air-conditioners, it is characterized in that: also be provided with the outdoor heat converter temperature-detecting device in the described off-premises station, the outdoor heat converter temperature when described control device is restarted according to compressor is come the delay start time of revisal outdoor fan.
6. air-conditioner according to claim 1 is characterized in that: described control device is controlled the low rate start time of described outdoor fan according to the number of times of compressor generation ultra-low pressure.
7. air-conditioner according to claim 6 is characterized in that: the increase of described low rate start time according to the number of times of compressor generation ultra-low pressure prolongs.
8. according to claim 6 or 7 described air-conditioners, it is characterized in that: also be provided with outdoor gas temperature checkout gear in the described off-premises station, the outdoor gas temperature when described control device is restarted according to compressor comes the low rate start time of revisal outdoor fan.
9. according to claim 6 or 7 described air-conditioners, it is characterized in that: also be provided with the outdoor heat converter temperature-detecting device in the described off-premises station, the outdoor heat converter temperature when described control device is restarted according to compressor is come the low rate start time of revisal outdoor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100848167A CN100545523C (en) | 2007-02-27 | 2007-02-27 | Air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100848167A CN100545523C (en) | 2007-02-27 | 2007-02-27 | Air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101256011A true CN101256011A (en) | 2008-09-03 |
| CN100545523C CN100545523C (en) | 2009-09-30 |
Family
ID=39891019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100848167A Expired - Fee Related CN100545523C (en) | 2007-02-27 | 2007-02-27 | Air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100545523C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937323A (en) * | 2011-08-16 | 2013-02-20 | 中国钢铁股份有限公司 | Air-conditioning set operation protection device |
| TWI395912B (en) * | 2010-07-15 | 2013-05-11 | China Steel Corp | Operation protection apparatus for an air condition unit |
| CN107062586A (en) * | 2016-12-28 | 2017-08-18 | 芜湖顺景自动化设备有限公司 | A kind of multifunctional safety automates gas heater equipment |
| CN109737566A (en) * | 2018-12-29 | 2019-05-10 | 青岛海尔空调电子有限公司 | Air conditioner and its control method |
-
2007
- 2007-02-27 CN CNB2007100848167A patent/CN100545523C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395912B (en) * | 2010-07-15 | 2013-05-11 | China Steel Corp | Operation protection apparatus for an air condition unit |
| CN102937323A (en) * | 2011-08-16 | 2013-02-20 | 中国钢铁股份有限公司 | Air-conditioning set operation protection device |
| CN102937323B (en) * | 2011-08-16 | 2015-02-11 | 中国钢铁股份有限公司 | Air-conditioning set operation protection device |
| CN107062586A (en) * | 2016-12-28 | 2017-08-18 | 芜湖顺景自动化设备有限公司 | A kind of multifunctional safety automates gas heater equipment |
| CN109737566A (en) * | 2018-12-29 | 2019-05-10 | 青岛海尔空调电子有限公司 | Air conditioner and its control method |
| CN109737566B (en) * | 2018-12-29 | 2021-09-21 | 青岛海尔空调电子有限公司 | Air conditioner and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100545523C (en) | 2009-09-30 |
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