CN109405168A - Air conditioner and the control method for preventing the coil temperature of its indoor unit excessively high - Google Patents
Air conditioner and the control method for preventing the coil temperature of its indoor unit excessively high Download PDFInfo
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- CN109405168A CN109405168A CN201811051541.1A CN201811051541A CN109405168A CN 109405168 A CN109405168 A CN 109405168A CN 201811051541 A CN201811051541 A CN 201811051541A CN 109405168 A CN109405168 A CN 109405168A
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- Prior art keywords
- air conditioner
- temperature
- coil pipe
- revolving speed
- indoor fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention relates to air conditioner and the control method for preventing the coil temperature of its indoor unit excessively high, which includes: to obtain the temperature of coil pipe；When the temperature of coil pipe is more than default secure threshold, control air conditioner restarts air conditioner after shutting down the first preset duration again, and continues to test the temperature of coil pipe.After the number shut down after starting for the first time from air conditioner because the temperature of coil pipe is more than default secure threshold reaches a times; when air conditioner is again started up; the revolving speed of the indoor fan of air conditioner is improved into Δ n revolution per second on the basis of the revolving speed before air conditioner last time is shut down; and continue the temperature of detection plate pipe after the second preset duration of continuous running; to be quickly effectively reduced the temperature of coil pipe by the heat dissipation for increasing coil pipe; to reduce the frequent generation for even preventing to shut down phenomenon; the refrigeration effect for improving air conditioner improves the usage experience of user；Wherein, a >=1, Δ n > 0.
Description
Technical field
The present invention relates to air conditioners, more particularly to a kind of air conditioner and the control for preventing the coil temperature of its indoor unit excessively high
Method processed.
Background technique
Existing heat pump air conditioner is in the operation of the states such as heating, it is possible to which the coil temperature for indoor unit occur is excessively high, program
In defencive function have little time to act, reach air-conditioning shutdown temperature, shut down.
The control mode of existing air conditioner are as follows: when the excessively high arrival X degree of interior machine coil temperature, compressor starts frequency reducing reaches Y
Degree, the quick frequency reducing of compressor reach Z degree, and compressor and air-conditioning stop working (wherein Z > Y > X).After shutting down several minutes, air-conditioning
Device restarting, running frequency before compressor frequency is kept.If interior machine coil temperature continuation is excessively high, shut down again, in repetition
State movement.Repeatedly, the phenomenon that occurring is the continuous startup-shutdown of air conditioner, and heating effect is poor, influences the usage experience of user.
Summary of the invention
One purpose of first aspect present invention is intended to overcome at least one defect in the prior art, provides one kind and avoids
Air conditioner is frequent the control method of start and stop phenomenon due to coil pipe overheat protector.
One of first aspect present invention sets further objective is that air conditioner is avoided to deviate due to coil pipe overheat protector
Fixed operational mode.
The purpose of second aspect of the present invention, which is to provide one kind, to be frequent start and stop phenomenon due to coil pipe overheat protector
Air conditioner.
According to the first aspect of the invention, the present invention provides a kind of control that the coil temperature for preventing air conditioner room unit is excessively high
Method processed, comprising:
Obtain the temperature of the coil pipe；
The air conditioner is controlled when the temperature of the coil pipe is more than default secure threshold to shut down after the first preset duration again
The air conditioner is restarted, and continues to test the temperature of the coil pipe；Wherein
Time shut down after starting for the first time from the air conditioner because the temperature of the coil pipe is more than the default secure threshold
Number reach a times after, when the air conditioner is again started up, by the revolving speed of the indoor fan of the air conditioner the air conditioner most
Δ n revolution per second is improved on the basis of the revolving speed before primary shutdown afterwards, and continues to test the disk after the second preset duration of continuous running
The temperature of pipe；
Wherein, a >=1, Δ n > 0.
Optionally, after the second preset duration of revolving speed continuous running after the indoor fan is to improve, if the coil pipe
Temperature be more than the default secure threshold, then control the air conditioner and shut down first preset duration；
When being again started up the air conditioner, revolving speed of the indoor fan before the air conditioner last time is shut down is judged
Whether default maximum (top) speed value setting mode under is reached, if it is not, then continuing to improve Δ n turns often for the revolving speed of the indoor fan
Second, and the temperature of the coil pipe is continued to test after the second preset duration described in continuous running.
Optionally, after the second preset duration described in the revolving speed continuous service after indoor fan is to improve, if described
The temperature of coil pipe is less than or equal to the default secure threshold, alternatively, the revolving speed of the indoor fan reaches under setting mode
The default maximum (top) speed value, then
Keep the revolving speed of the indoor fan constant until the temperature of the coil pipe is lower than a preset temperature threshold, it is described pre-
If temperature threshold is lower than the default secure threshold.
Optionally, default with the default maximum (top) speed value continuous service third under setting mode when the indoor fan
After duration, if the temperature of the coil pipe reduces the sky still above the default secure threshold, according to the temperature of the coil pipe
Adjust the compressor operating frequency or the control compressor shutdown of device.
Optionally, the running frequency of the compressor or the concrete mode of the control compressor shutdown are reduced are as follows:
If T0< T≤T0+ x, then the compressor is with the frequency reducing at a slow speed of the speed of p Hertz per second；
If T0+ x < T≤T0+ y, then the compressor is with the quick frequency reducing of the speed of q Hertz per second；
If T > T0+ y then controls the compressor shutdown；
Wherein, T indicates the temperature of the coil pipe；T0Indicate the default secure threshold；And
X < y, p < q, x, y, p and q are all larger than zero.
Optionally, when the temperature of the coil pipe is lower than the preset temperature threshold, the revolving speed of the indoor fan is controlled
Restore with the running frequency of the compressor to initial value.
Optionally, from the air conditioner start for the first time after because the temperature of the coil pipe be more than the default secure threshold due to stop
When the number of machine is less than a times, after the air conditioner is again started up, the revolving speed of the indoor fan of the air conditioner and the sky
The frequency of the compressor of device is adjusted to remain unchanged.
Optionally, first preset duration is any duration value of the range between 1~4min；Or
Second preset duration is any duration value of the range between 5~10s.
According to the second aspect of the invention, the present invention also provides a kind of air conditioners, including the interior with indoor heat exchanger
Machine, the indoor heat exchanger include coil pipe, the air conditioner further include:
Temperature acquisition module, for obtaining the temperature of the coil pipe；And
Controller is configured to control the air conditioner shutdown first when the temperature of the coil pipe is more than default secure threshold
After preset duration, it is again started up the air conditioner；And it is configured to the temperature after starting for the first time from the air conditioner because of the coil pipe
After the number shut down more than the default secure threshold reaches a times, when the air conditioner is again started up, by the air conditioner
The revolving speed of indoor fan improve Δ n revolution per second on the basis of the revolving speed before air conditioner last time is shut down；
Wherein, a >=1, Δ n > 0.
Optionally, it is default to be configured to the revolving speed continuous running second after the indoor fan is to improve for the controller
After duration, if the temperature of the coil pipe still above the default secure threshold, and the indoor fan the air conditioner most
Afterwards it is primary shut down before revolving speed default maximum (top) speed value has not yet been reached, then control the air conditioner and shut down after the first preset duration again
Secondary starting, and the revolving speed of the indoor fan is continued to improve Δ n revolution per second.
Present inventors appreciate that if the revolving speed of the compressor frequency after air conditioner starting and indoor fan is all every time
It remains unchanged, the temperature of coil pipe is easy to rise to default secure threshold again in a short time, and air conditioner is caused to be shut down again.
Repeatedly, the phenomenon that occurring is air conditioner continually start and stop, and refrigeration effect is poor, can seriously affect the refrigeration experience of user.
For this purpose, in control method of the invention, particularly after the number that air conditioner is shut down due to coil pipe overheat protector reaches a times,
The revolving speed of indoor fan is improved, to be quickly effectively reduced the temperature of coil pipe by the heat dissipation for increasing coil pipe, to reduce even
The frequent generation for preventing shutdown phenomenon, improves the refrigeration effect of air conditioner, improves the usage experience of user.
Further, since the revolving speed of indoor fan can directly affect the sensory experience of user, the present invention is also special
Default maximum (top) speed value provided with indoor fan under setting mode (under different operational modes, presets maximum (top) speed value
Value it is different), preset maximum (top) speed value no more than this when improving indoor fan revolving speed.If indoor fan revolving speed reaches this
After default maximum (top) speed value operation a period of time, coil temperature is still above default secure threshold, then by suitably extending room
Inner blower is with the duration of default maximum (top) speed value operation or the running frequency by reducing compressor or other modes come effectively
The temperature of coil pipe is reduced, it is excessive so as to avoid indoor fan revolving speed and change operational mode set by user, deviate from use
The use at family is intended to.
Further, when the temperature of coil pipe is lower than a preset temperature threshold, the revolving speed of indoor fan restores to initial to turn
Speed, with the normal operating condition being restored under user's setting mode as soon as possible.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the excessively high control method of the coil temperature according to an embodiment of the invention for preventing air conditioner room unit
Schematic flow chart；
Fig. 2 is the schematic block diagram of air conditioner according to an embodiment of the invention；
Fig. 3 is the schematic flow chart of the control method of a further embodiment according to the present invention.
Specific embodiment
Present invention firstly provides a kind of control methods that the coil temperature for preventing air conditioner room unit is excessively high.Fig. 1 is basis
The schematic flow chart of the control method for preventing the coil temperature of air conditioner room unit excessively high of one embodiment of the invention.
Referring to Fig. 1, control method of the invention includes: to obtain the temperature of coil pipe；When the temperature of coil pipe is more than default safety
It is controlled when threshold value after air conditioner shuts down the first preset duration and restarts air conditioner again, and continue to test the temperature of coil pipe.
On this basis, present inventors appreciate that, if every time air conditioner 1 start after compressor frequency and interior
The revolving speed of blower 15 all remains unchanged, and the temperature of coil pipe 11 is easy to rise to default secure threshold again in a short time, leads
Air conditioner 1 is caused to shut down again.Repeatedly, the phenomenon that occurring is the continually start and stop of air conditioner 1, and refrigeration effect is poor, can be serious
Influence the heating experience of user.For this purpose, in the further control method of the present invention, also particularly in air conditioner 1 because to coil pipe 11
Overheat protector and the number shut down reach a (a >=1) it is secondary after, the revolving speed of indoor fan 15 is improved, by improving indoor fan 15
Heat-sinking capability fast and effeciently reduce the temperature of coil pipe 11, to reduce the frequent generation for even preventing to shut down phenomenon, improve
The refrigeration effect of air conditioner 1, improves the usage experience of user.
Specifically, control method of the invention further include: from air conditioner 1 start for the first time after because coil pipe 11 temperature be more than it is upper
State default secure threshold and after the number shut down reaches a times, when air conditioner 1 is again started up, by the indoor fan 15 of air conditioner 1
Revolving speed Δ n revolution per second, and the second preset duration of continuous running are improved on the basis of the revolving speed before air conditioner 1 is shut down for the last time
Continue the temperature of detection plate pipe 11 afterwards；Wherein, a >=1, Δ n > 0.It is understood that a is the integer more than or equal to 1.Δ n is excellent
It is selected as the integer greater than zero.
The present invention also provides a kind of air conditioners.Fig. 2 is the schematic structure of air conditioner according to an embodiment of the invention
Block diagram.Specifically, air conditioner 1 may include indoor unit 10 and outdoor unit 20, and indoor unit 10 has indoor heat exchanger, indoor heat exchanger
With coil pipe 11, the temperature of coil pipe can be obtained by temperature acquisition module 12.Temperature acquisition module can be temperature sensor, with
Directly detect the temperature of coil pipe；Temperature acquisition module may be the dress that other can directly or indirectly obtain coil temperature
It sets.Indoor unit also has controller 13, and it is empty that controller 13 is configured to the control when the temperature of coil pipe 11 is more than default secure threshold
It adjusts device 1 to shut down, be again started up air conditioner 1 after the time that air conditioner 1 is shut down continues the first preset duration.Air conditioner 1 shuts down meaning
Refer to that 1 complete machine of air conditioner is out of service, at this point, the compressor 14 and indoor fan 15 of air conditioner 1 are in halted state.
Controller 13 be further configured into from air conditioner 1 start for the first time after because coil pipe 11 temperature be more than above-mentioned default peace
After full threshold value and the number shut down reach a times, when air conditioner 1 is again started up, the revolving speed of the indoor fan 15 of air conditioner 1 is existed
Air conditioner 1 shut down for the last time before revolving speed on the basis of improve Δ n revolution per second, to improve the heat-sinking capability of indoor fan 15, from
And it fast and effeciently radiates to coil pipe 11.
Further, above-mentioned first preset duration is any duration value of the range between 1~4min, for example, first is pre-
If duration can be 1min, 2min, 3min or 4min.Above-mentioned second preset duration can be any of range between 5~15s
Duration value to avoid the time too short temperature for causing continually to detect coil pipe 11, and avoids overlong time from leading to functional module 11
Temperature obtain not in time so that correspondingly measure cannot be taken in time.For example, the second preset duration can for 5s, 6s, 7s,
8s, 9s, 10s, 11s, 12s, 13s, 14s or 15s.Preferably, the second preset duration is selected as any duration between 8~12s
Value, so that better effect.
After the second preset duration of revolving speed continuous running after indoor fan 15 is to improve, the temperature of coil pipe 11 still has can
Default secure threshold can be higher than, it is also possible to lower than default secure threshold.Revolving speed after indoor fan 15 is to improve persistently is transported
After the second preset duration of row, if the temperature of coil pipe 11, still above default secure threshold, and the revolving speed of indoor fan 15 does not reach
To its default maximum (top) speed value under setting mode, so that it may when being again started up after air conditioner 1 shuts down the first preset duration
Continue the revolving speed of raising indoor fan 15, to further increase its heat-sinking capability, until the temperature of coil pipe 11 is less than or equal to pre-
If the revolving speed of secure threshold or indoor fan 15 reaches the default maximum (top) speed value under setting mode.Can to understand,
When the operational mode of air conditioner set by user is different (such as high wind speed, middle wind speed, low wind speed), indoor fan 15 it is default most
Big tachometer value may be different.
Specifically, Fig. 3 is the schematic flow chart of the control method of a further embodiment according to the present invention.In this hair
In bright some embodiments, control method of the invention further include: the revolving speed continuous running the after indoor fan 15 is to improve
After two preset durations, if the temperature of coil pipe 11 is more than default secure threshold, controls air conditioner 1 and shut down the first preset duration；Again
When secondary starting air conditioner 1, judge whether revolving speed of the indoor fan 15 before air conditioner 1 is shut down for the last time reaches under setting mode
Default maximum (top) speed value, (the default maximum (top) speed value under setting mode has not yet been reached) if not, then by indoor fan 15
Revolving speed continues to improve Δ n revolution per second, and continues the temperature of detection plate pipe 11 after the second preset duration of continuous running.
Further, after the second preset duration of revolving speed continuous service after indoor fan 15 is to improve, if coil pipe 11
Temperature is less than or equal to default secure threshold, alternatively, the revolving speed of indoor fan 15 reaches the default maximum (top) speed under setting mode
Value then keeps the revolving speed of indoor fan 15 constant until the temperature of coil pipe 11 is lower than preset temperature threshold.
It is understood that above-mentioned preset temperature threshold is lower than above-mentioned default secure threshold.Preferably, above-mentioned default safety
Difference between threshold value and above-mentioned preset temperature threshold can be any temperature value of the range between 3~7 DEG C.For example, above-mentioned
The difference of default secure threshold and above-mentioned preset temperature threshold can be 3 DEG C, 4 DEG C, 5 DEG C, 6 DEG C or 7 DEG C.
Correspondingly, in some embodiments of the invention, controller 13 is further configured into: when indoor fan 15 is to mention
After the second preset duration of revolving speed continuous service after height, if the temperature of coil pipe 11 still above default secure threshold, and indoor wind
The revolving speed of machine 15 does not reach its default maximum (top) speed value under setting mode, then control air conditioner 1 shut down first it is default when
It is again started up after length, and continues to improve the revolving speed of indoor fan 15, to further increase its heat-sinking capability, until the temperature of coil pipe 11
Degree reaches the default maximum (top) speed value under setting mode less than or equal to the revolving speed of default secure threshold or indoor fan 15.
Since the revolving speed of indoor fan 15 can directly affect the sensory experience of user, the present invention is also especially provided with
(under different operational modes, default maximum (top) speed value takes default maximum (top) speed value of the indoor fan 15 under setting mode
Value is different), maximum (top) speed value is preset no more than this when improving 15 revolving speed of indoor fan.If 15 revolving speed of indoor fan reaches this
After default maximum (top) speed value operation a period of time, 11 temperature of coil pipe is still above default secure threshold, then by suitably extending
Indoor fan 15 with preset maximum (top) speed value operation duration or by reduce compressor 14 running frequency or other modes come
It is effectively reduced the temperature of coil pipe 11, it is excessive so as to avoid 15 revolving speed of indoor fan and change operation mould set by user
Formula, the use for deviating from user are intended to.
Present inventors appreciate that in some special cases, the revolving speed for only relying on raising indoor fan 15 may
It can not solve the problems, such as that 11 temperature of coil pipe is excessively high, at this time, it is also necessary to control the running frequency of compressor 14.
Specifically, in some embodiments, control method of the invention further include:
After indoor fan 15 is with default maximum (top) speed value continuous service third preset duration, if the temperature of coil pipe 11 is still super
Default secure threshold is crossed, then the compressor operating frequency of air conditioner 1 is reduced according to the temperature of coil pipe 11 or control compressor 14 stops
Machine, to reduce the calorific value of coil pipe 11, to reduce the temperature of coil pipe 11.Rapid cooling is carried out to coil pipe 11 and reduces coil pipe 11
Calorific value be two coolings best modes, both modes combine the temperature that can more fast and effeciently reduce coil pipe 11
Degree.
Correspondingly, in some embodiments, controller 13 is further configured into: when indoor fan 15 is under setting mode
Default maximum (top) speed value continuous service third preset duration after, if the temperature of coil pipe 11 is still above default secure threshold, root
The compressor operating frequency of air conditioner 1 is reduced according to the temperature of coil pipe 11 or control compressor 14 is shut down.
Further, the concrete mode that the running frequency or control compressor 14 for reducing compressor 14 are shut down are as follows:
If T0< T≤T0+ x controls compressor 14 then with the frequency reducing at a slow speed of the speed of p Hertz per second；
If T0+ x < T≤T0+ y controls compressor 14 then with the quick frequency reducing of the speed of q Hertz per second；
If T > T0+ y then controls the shutdown of compressor 14；
Wherein, T indicates the temperature of coil pipe；T0Indicate above-mentioned default secure threshold；And x < y, p < q, x, y, p and q is big
In zero.
Specifically, the value of x can be 9,10,11 or other suitable numerical value, the value of y can for 18,20,22 or its
His suitable numerical value, the value of p can be 0.5,1.0,1.5 or other suitable numerical value, the value of q can for 1.8,2.0,
2.2 or other suitable numerical value.X, the value of y, p, q can have according to the type of air conditioner, model or other specifications difference
Institute is different.
In some embodiments, control method of the invention further include: when the temperature of coil pipe 11 is lower than above-mentioned preset temperature
When threshold value, the running frequency of the revolving speed and compressor 14 that control indoor fan 15 is restored to initial value.The revolving speed of indoor fan 15
Mean value when being in normal operating condition under setting mode when air conditioner 1 with the initial value of the running frequency of compressor 14.
Correspondingly, in some embodiments, the temperature when coil pipe 11 is further configured into lower than above-mentioned pre- in controller 13
If the running frequency for the revolving speed and compressor 14 for controlling indoor fan 15 when temperature threshold is restored to initial value.
In some embodiments, control method of the invention further include: from air conditioner 1 start for the first time after because coil pipe 11 temperature
When degree is more than that the number presetting secure threshold and shutting down is less than a times, after air conditioner 1 is again started up, the indoor fan of air conditioner 1
The frequency of the compressor 14 of 15 revolving speed and air conditioner 1 remains unchanged.That is the revolving speed of indoor fan 15 and compressor 14
Running frequency is value when air conditioner is in normal operating condition under setting mode.
Correspondingly, in some embodiments, controller 13 be further configured into from air conditioner 1 start for the first time after because of coil pipe
When 11 temperature is more than that the number presetting secure threshold and shutting down is less than a times, after air conditioner 1 is again started up, air conditioner 1 is controlled
The revolving speed of indoor fan 15 and the frequency of compressor 14 of air conditioner 1 remain unchanged.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of control method that the coil temperature for preventing air conditioner room unit is excessively high characterized by comprising
Obtain the temperature of the coil pipe；
The air conditioner is controlled when the temperature of the coil pipe is more than default secure threshold to shut down after the first preset duration again again
Start the air conditioner, and continues to test the temperature of the coil pipe；Wherein
The number shut down after starting for the first time from the air conditioner because the temperature of the coil pipe is more than the default secure threshold reaches
After to a times, when the air conditioner is again started up, by the revolving speed of the indoor fan of the air conditioner the air conditioner last
Δ n revolution per second is improved on the basis of revolving speed before secondary shutdown, and continues to test the coil pipe after the second preset duration of continuous running
Temperature；
Wherein, a >=1, Δ n > 0.
2. control method according to claim 1, which is characterized in that
After the second preset duration of revolving speed continuous running after the indoor fan is to improve, if the temperature of the coil pipe is more than institute
Default secure threshold is stated, then controls the air conditioner and shuts down first preset duration；
When being again started up the air conditioner, whether revolving speed of the indoor fan before the air conditioner last time is shut down is judged
Reach the default maximum (top) speed value under setting mode, if it is not, then continue the revolving speed of the indoor fan to improve Δ n revolution per second,
And the temperature of the coil pipe is continued to test after the second preset duration described in continuous running.
3. control method according to claim 2, which is characterized in that
After second preset duration described in revolving speed continuous service after the indoor fan is to improve, if the temperature of the coil pipe is low
In or be equal to the default secure threshold, alternatively, the revolving speed of the indoor fan reaches the default maximum under setting mode
Tachometer value, then
Keep the revolving speed of the indoor fan constant until the temperature of the coil pipe is lower than a preset temperature threshold, the default temperature
It spends threshold value and is lower than the default secure threshold.
4. control method according to claim 3, which is characterized in that
After the indoor fan is with the default maximum (top) speed value continuous service third preset duration under setting mode, if institute
The temperature of coil pipe is stated still above the default secure threshold, then reduces the compressor of the air conditioner according to the temperature of the coil pipe
Running frequency or the control compressor shutdown.
5. control method according to claim 4, which is characterized in that reduce running frequency or the control institute of the compressor
State the concrete mode of compressor shutdown are as follows:
If T0< T≤T0+ x, then the compressor is with the frequency reducing at a slow speed of the speed of p Hertz per second；
If T0+ x < T≤T0+ y, then the compressor is with the quick frequency reducing of the speed of q Hertz per second；
If T > T0+ y then controls the compressor shutdown；
Wherein, T indicates the temperature of the coil pipe；T0Indicate the default secure threshold；And
X < y, p < q, x, y, p and q are all larger than zero.
6. control method according to claim 5, which is characterized in that
When the temperature of the coil pipe is lower than the preset temperature threshold, the revolving speed and the compressor of the indoor fan are controlled
Running frequency restore to initial value.
7. control method according to claim 1, which is characterized in that
The number shut down after starting for the first time from the air conditioner because the temperature of the coil pipe is more than the default secure threshold is few
When a times, after the air conditioner is again started up, the compression of the revolving speed of the indoor fan of the air conditioner and the air conditioner
The frequency of machine remains unchanged.
8. control method according to claim 1, which is characterized in that
First preset duration is any duration value of the range between 1~4min；Or
Second preset duration is any duration value of the range between 5~10s.
9. a kind of air conditioner, including the indoor unit with indoor heat exchanger, the indoor heat exchanger includes coil pipe, and feature exists
In the air conditioner further include:
Temperature acquisition module, for obtaining the temperature of the coil pipe；And
Controller is configured to default more than the air conditioner shutdown first is controlled when presetting secure threshold when the temperature of the coil pipe
After duration, it is again started up the air conditioner；And it is configured to after starting for the first time from the air conditioner because the temperature of the coil pipe is more than
After the default secure threshold and the number shut down reach a times, when the air conditioner is again started up, by the room of the air conditioner
The revolving speed of inner blower improves Δ n revolution per second on the basis of the revolving speed before the air conditioner last time is shut down；
Wherein, a >=1, Δ n > 0.
10. air conditioner according to claim 9, which is characterized in that
After the controller is configured to the second preset duration of revolving speed continuous running after the indoor fan is to improve, if institute
The temperature of coil pipe is stated still above the default secure threshold, and the indoor fan is before the air conditioner last time is shut down
Revolving speed default maximum (top) speed value has not yet been reached, then control after the air conditioner shuts down the first preset duration and be again started up, and will
The revolving speed of the indoor fan continues to improve Δ n revolution per second.
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| CN111442459A (en) * | 2020-03-17 | 2020-07-24 | 海信（山东）空调有限公司 | Control method of air conditioner, storage medium and air conditioner |
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| CN113587356A (en) * | 2021-06-02 | 2021-11-02 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing heating of air conditioner from being blocked and air conditioner |
| CN113587356B (en) * | 2021-06-02 | 2022-11-25 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing heating of air conditioner from being blocked and air conditioner |
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