CN106288159B - Control method, control device and the air conditioner of air conditioner - Google Patents
Control method, control device and the air conditioner of air conditioner Download PDFInfo
- Publication number
- CN106288159B CN106288159B CN201610640226.7A CN201610640226A CN106288159B CN 106288159 B CN106288159 B CN 106288159B CN 201610640226 A CN201610640226 A CN 201610640226A CN 106288159 B CN106288159 B CN 106288159B
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- Prior art keywords
- fan
- air conditioner
- speed
- threshold value
- rotating speed
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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 provides a kind of control method of air conditioner, control device and air conditioners, the air conditioner includes outdoor unit, the outdoor unit includes DC fan, and the control method of the air conditioner includes: to detect the actual speed of the DC fan in the DC fan operational process；Detect the DC fan whether normal operation, to obtain testing result；According to the actual speed and the testing result, the operating status of the DC fan is controlled.According to the technical solution of the present invention, the operating status of the DC fan of air conditioner is controlled, to prevent the device in air conditioner to be damaged under typhoon weather environment, improves the reliability of air conditioner, promotes the usage experience of user.
Description
Technical field
The present invention relates to air conditioner technical fields, control method, a kind of air conditioner in particular to a kind of air conditioner
Control device and a kind of air conditioner.
Background technique
Develop with air conditioner technology high-speed, outdoor unit of the air conditioner will use DC fan.The DC fan of outdoor unit
To be operated with exogenous wind, especially violent typhoon when, the electric current that DC fan power generation generates may flow back into the skies such as frequency converter
On the device for adjusting device, the device of air conditioner is damaged, the reliability of air conditioner is reduced, influences the usage experience of user.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, an object of the present invention is to provide a kind of control programs of new air conditioner, to the straight of air conditioner
The operating status of flow fan is controlled, and to prevent the device in air conditioner to be damaged under typhoon weather environment, improves sky
The reliability for adjusting device, promotes the usage experience of user.
It is another object of the present invention to propose a kind of air conditioner.
To achieve the above object, according to the embodiment of the first aspect of the invention, a kind of controlling party of air conditioner is proposed
Method, the air conditioner include outdoor unit, and the outdoor unit includes DC fan, and the control method of the air conditioner includes: in institute
It states in DC fan operational process, detects the actual speed of the DC fan；Detect the DC fan whether normal operation,
To obtain testing result；According to the actual speed and the testing result, the operating status of the DC fan is carried out
Control.
The control method of the air conditioner of embodiment according to the present invention, by the actual speed and inspection that detect DC fan
Survey DC fan whether normal operation, and the operating status of DC fan is controlled according to actual speed and testing result
System, to prevent the device in air conditioner to be damaged under typhoon weather environment, improves the reliability of air conditioner, promotes user's
Usage experience.Wherein, the pulse signal that the actual speed of DC fan can specifically be fed back by acquisition DC fan, and root are detected
The actual speed of DC fan is calculated according to collected pulse signal.
The control method of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, detect the DC fan whether normal operation, to obtain testing result
Step specifically includes: judging whether the actual speed is within the scope of preset rotation speed；It is in described pre- in the actual speed
If when in the range of speeds, determining the DC fan normal operation；In the actual speed not within the scope of the preset rotation speed
When, determine that the DC fan is operating abnormally.
The control method of the air conditioner of embodiment according to the present invention, by judging whether actual speed is in preset rotation speed
In range (preset rotation speed range can be configured according to actual needs), determined when actual speed is within the scope of preset rotation speed
DC fan normal operation determines that DC fan is operating abnormally when actual speed is not within the scope of preset rotation speed, ensure that straight
The accuracy of the state-detection of flow fan takes different control to arrange to be subsequent according to DC fan operation exception or normal condition
It applies and premise guarantee is provided.
According to one embodiment of present invention, in the case where the determination DC fan normal operation, described
According to the actual speed and the testing result of the DC fan, the step that the operating status of the DC fan is controlled
Suddenly, it specifically includes: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting speed
Between rotating speed difference；Judge whether the rotating speed difference reaches default typhoon protection threshold value, and judges the rotating speed difference
Whether the duration for reaching the predetermined typhoon protection threshold value reaches the first duration；Reach described default in the rotating speed difference
Typhoon protects threshold value, and the rotating speed difference reaches the predetermined typhoon and the duration of threshold value is protected to reach first duration
When, stop transmitting speed controling signal to the DC fan, and cut off the power supply of the DC fan；In the revolving speed
Difference is not up to the default typhoon protection threshold value and/or the rotating speed difference reaches continuing for the predetermined typhoon protection threshold value
When duration is not up to first duration, controls the DC fan and continue to run.
The control method of the air conditioner of embodiment according to the present invention, when the DC fan normal operation, by
Rotating speed difference between actual speed and setting speed reaches predetermined typhoon protection threshold value, and (predetermined typhoon protection threshold value can be according to reality
Border demand is configured) and rotating speed difference when reaching the duration of predetermined typhoon protection threshold value and reaching the first duration, stop to
DC fan transmits speed controling signal, and cuts off the power supply of DC fan, so that DC fan is out of service, leads to simultaneously
The duration that detection rotating speed difference reaches predetermined typhoon protection threshold value is crossed, reduces probability of miscarriage of justice caused by other factors, really
The accuracy for having protected entire control process, by protecting threshold value and/or rotating speed difference to reach in the not up to default typhoon of rotating speed difference
When protecting the duration of threshold value to be not up to the first duration to predetermined typhoon, control DC fan is continued to run, it is ensured that does not influence
The normal operation of DC fan.
According to one embodiment of present invention, in the case where the determination DC fan is operating abnormally, described
According to the actual speed and the testing result of the DC fan, the step that the operating status of the DC fan is controlled
Suddenly, it specifically includes: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting speed
Between rotating speed difference；Judge whether the rotating speed difference reaches default typhoon protection threshold value；Reach institute in the rotating speed difference
When stating default typhoon protection threshold value, stop transmitting speed controling signal to the DC fan, and cut off the DC fan
Power supply；When the rotating speed difference is not up to the default typhoon protection threshold value, controls the DC fan and continue to run.
The control method of the air conditioner of embodiment according to the present invention, when DC fan is operating abnormally, by reality
Rotating speed difference between revolving speed and setting speed reaches predetermined typhoon protection threshold value, and (predetermined typhoon protection threshold value can be according to practical need
Ask and be configured) when, stop transmitting speed controling signal to DC fan, and cut off the power supply of DC fan, thus and
When control DC fan it is out of service, be damaged to avoid the device in air conditioner, whole process is reached without detecting rotating speed difference
It is too long to avoid detection time and be unable to control DC fan and shut down in time to the duration of predetermined typhoon protection threshold value.
According to one embodiment of present invention, before the actual speed of the detection DC fan the step of, also
It include: to be closed the power supply of the DC fan, and at second when receiving the open command to the DC fan
Speed controling signal is transmitted to the DC fan after length, to control the DC fan operation；When detecting the air conditioner
When under standby or shutdown status, the power supply of the DC fan is cut off.
The control method of the air conditioner of embodiment according to the present invention, the DC fan of air conditioner are not run always, In
When receiving the open command to DC fan, be closed the power supply of DC fan, and the second duration (the second duration be
The second duration after being closed the power supply of DC fan, the second duration can be configured according to actual needs) when to direct current wind
Machine transmits speed controling signal to control DC fan operation, and when so that only having use demand to DC fan, just control is straight
Flow fan starting operation, and in the case where air conditioner is in standby or shutdown status, the power supply of DC fan is cut off so that direct current
Blower does not start or stop operation, significantly reduces the power consumption of air-conditioner system.
Embodiment according to the second aspect of the invention proposes a kind of control device of air conditioner, the air conditioner packet
Outdoor unit is included, the outdoor unit includes DC fan, and the control device of the air conditioner includes: first detection unit, is used for
In the DC fan operational process, the actual speed of the DC fan is detected；Second detection unit is described straight for detecting
Flow fan whether normal operation, to obtain testing result；Control unit, for being tied according to the actual speed and the detection
Fruit controls the operating status of the DC fan.
The control device of the air conditioner of embodiment according to the present invention, by the actual speed and inspection that detect DC fan
Survey DC fan whether normal operation, and the operating status of DC fan is controlled according to actual speed and testing result
System, to prevent the device in air conditioner to be damaged under typhoon weather environment, improves the reliability of air conditioner, promotes user's
Usage experience.Wherein, the pulse signal that the actual speed of DC fan can specifically be fed back by acquisition DC fan, and root are detected
The actual speed of DC fan is calculated according to collected pulse signal.
The control device of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, the second detection unit is specifically used for: whether judging the actual speed
Within the scope of preset rotation speed；When the actual speed is within the scope of the preset rotation speed, the DC fan fortune is determined
Row is normal；When the actual speed is not within the scope of the preset rotation speed, determine that the DC fan is operating abnormally.
The control device of the air conditioner of embodiment according to the present invention, by judging whether actual speed is in preset rotation speed
In range (preset rotation speed range can be configured according to actual needs), determined when actual speed is within the scope of preset rotation speed
DC fan normal operation determines that DC fan is operating abnormally when actual speed is not within the scope of preset rotation speed, ensure that straight
The accuracy of the state-detection of flow fan takes different control to arrange to be subsequent according to DC fan operation exception or normal condition
It applies and premise guarantee is provided.
According to one embodiment of present invention, in the case where the determination DC fan normal operation, the control
Unit processed is specifically used for: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting
Rotating speed difference between revolving speed；Judge whether the rotating speed difference reaches default typhoon protection threshold value, and judges the revolving speed
Whether the duration that difference reaches the predetermined typhoon protection threshold value reaches the first duration；Reach described in the rotating speed difference
Default typhoon protects threshold value, and the rotating speed difference reaches the predetermined typhoon and the duration of threshold value is protected to reach described first
When duration, stop transmitting speed controling signal to the DC fan, and cut off the power supply of the DC fan；Described
Rotating speed difference is not up to the default typhoon protection threshold value and/or the rotating speed difference reaches the predetermined typhoon protection threshold value
When duration is not up to first duration, controls the DC fan and continue to run.
The control device of the air conditioner of embodiment according to the present invention, when the DC fan normal operation, by
Rotating speed difference between actual speed and setting speed reaches predetermined typhoon protection threshold value, and (predetermined typhoon protection threshold value can be according to reality
Border demand is configured) and rotating speed difference reach the duration of predetermined typhoon protection threshold value and reach the first duration (the first duration
Can be configured according to actual needs) when, stop transmitting speed controling signal to DC fan, and cut off the power supply of DC fan
Power supply, so that DC fan is out of service, while reaching the duration that predetermined typhoon protects threshold value by detecting rotating speed difference,
Reduce probability of miscarriage of justice caused by other factors, it is ensured that the accuracy of entire control process, by being not up in rotating speed difference
When the duration that default typhoon protection threshold value and/or rotating speed difference reach predetermined typhoon protection threshold value is not up to the first duration,
Control DC fan continues to run, it is ensured that does not influence the normal operation of DC fan.
According to one embodiment of present invention, in the case where the determination DC fan is operating abnormally, the control
Unit processed is specifically used for: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting
Rotating speed difference between revolving speed；Judge whether the rotating speed difference reaches default typhoon protection threshold value；It is reached in the rotating speed difference
When protecting threshold value to the default typhoon, stop transmitting speed controling signal to the DC fan, and cut off the direct current wind
The power supply of machine；When the rotating speed difference is not up to the default typhoon protection threshold value, controls the DC fan and continue
Operation.
The control device of the air conditioner of embodiment according to the present invention, when DC fan is operating abnormally, by reality
Rotating speed difference between revolving speed and setting speed reaches predetermined typhoon protection threshold value, and (predetermined typhoon protection threshold value can be according to practical need
Ask and be configured) when, stop transmitting speed controling signal to DC fan, and cut off the power supply of DC fan, thus and
When control DC fan it is out of service, be damaged to avoid the device in air conditioner, whole process is reached without detecting rotating speed difference
It is too long to avoid detection time and be unable to control DC fan and shut down in time to the duration of predetermined typhoon protection threshold value.
According to one embodiment of present invention, described control unit is also used to: being opened when receiving the DC fan
When opening instruction, it is closed the power supply of the DC fan, and to DC fan transmission revolving speed control after the second duration
Signal, to control the DC fan operation；When detecting that the air conditioner is under standby or shutdown status, described in cutting
The power supply of DC fan.
The control device of the air conditioner of embodiment according to the present invention, the DC fan of air conditioner are not run always, In
When receiving the open command to DC fan, be closed the power supply of DC fan, and the second duration (the second duration be
The second duration after being closed the power supply of DC fan, the second duration can be configured according to actual needs) when to direct current wind
Machine transmits speed controling signal to control DC fan operation, and when so that only having use demand to DC fan, just control is straight
Flow fan starting operation, and in the case where air conditioner is in standby or shutdown status, the power supply of DC fan is cut off so that direct current
Blower does not start or stop operation, significantly reduces the power consumption of air-conditioner system.
Embodiment according to the third aspect of the invention we, it is also proposed that a kind of air conditioner, comprising: as appointed in above-described embodiment
The control device of air conditioner described in one.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the schematic flow diagram of the control method of air conditioner according to an embodiment of the invention；
Fig. 2 shows the schematic block diagrams of the control device of the air conditioner of embodiment according to the present invention；
Fig. 3 shows the schematic block diagram of the air conditioner of embodiment according to the present invention；
Fig. 4 shows the control principle drawing of the DC fan of the air conditioner of embodiment according to the present invention；
Fig. 5 shows the schematic flow diagram of the control method of air conditioner according to another embodiment of the invention.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the schematic flow diagram of the control method of air conditioner according to an embodiment of the invention.
As shown in Figure 1, the control method of air conditioner according to an embodiment of the invention, the air conditioner includes outdoor
Machine, the outdoor unit include DC fan, and the control method of the air conditioner includes:
Step 102, in the DC fan operational process, the actual speed of the DC fan is detected.
Step 104, detect the DC fan whether normal operation, to obtain testing result.
Step 106, according to the actual speed and the testing result, the operating status of the DC fan is carried out
Control.
By detect DC fan actual speed and detection DC fan whether normal operation, and according to actual speed
And testing result controls the operating status of DC fan, to prevent the device in air conditioner under typhoon weather environment
It is damaged, improves the reliability of air conditioner, promote the usage experience of user.Wherein, the actual speed tool of DC fan is detected
Body can be by the pulse signal of acquisition DC fan feedback, and calculates according to collected pulse signal the reality of DC fan
Revolving speed.
The control method of air conditioner according to the abovementioned embodiments of the present invention can also have following technical characteristic:
According to one embodiment of present invention, detect the DC fan whether normal operation, to obtain testing result
Step specifically includes: judging whether the actual speed is within the scope of preset rotation speed；It is in described pre- in the actual speed
If when in the range of speeds, determining the DC fan normal operation；In the actual speed not within the scope of the preset rotation speed
When, determine that the DC fan is operating abnormally.
By judging whether actual speed is within the scope of preset rotation speed, (preset rotation speed range can carry out according to actual needs
Setting), DC fan normal operation is determined when actual speed is within the scope of preset rotation speed, is not turned default in actual speed
It determines that DC fan is operating abnormally when in fast range, ensure that the accuracy of the state-detection of DC fan, be that subsequent basis is straight
Flow fan is operating abnormally or normal condition takes different control measure to provide premise guarantee.
According to one embodiment of present invention, in the case where the determination DC fan normal operation, described
According to the actual speed and the testing result of the DC fan, the step that the operating status of the DC fan is controlled
Suddenly, it specifically includes: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting speed
Between rotating speed difference；Judge whether the rotating speed difference reaches default typhoon protection threshold value, and judges the rotating speed difference
Whether the duration for reaching the predetermined typhoon protection threshold value reaches the first duration；Reach described default in the rotating speed difference
Typhoon protects threshold value, and the rotating speed difference reaches the predetermined typhoon and the duration of threshold value is protected to reach first duration
When, stop transmitting speed controling signal to the DC fan, and cut off the power supply of the DC fan；In the revolving speed
Difference is not up to the default typhoon protection threshold value and/or the rotating speed difference reaches continuing for the predetermined typhoon protection threshold value
When duration is not up to first duration, controls the DC fan and continue to run.
When the DC fan normal operation, reach pre- by the rotating speed difference between actual speed and setting speed
Determine typhoon protection threshold value (predetermined typhoon protection threshold value can be configured according to actual needs) and rotating speed difference reaches predetermined typhoon
When the duration of protection threshold value reaches the first duration, stop transmitting speed controling signal to DC fan, and cut off direct current wind
The power supply of machine, so that DC fan is out of service, while reaching predetermined typhoon protection threshold value by detecting rotating speed difference
Duration reduces probability of miscarriage of justice caused by other factors, it is ensured that the accuracy of entire control process, by rotational speed difference
Value is not up to default typhoon protection threshold value and/or rotating speed difference reaches predetermined typhoon and the duration of threshold value is protected to be not up to first
When duration, control DC fan is continued to run, it is ensured that does not influence the normal operation of DC fan.
According to one embodiment of present invention, in the case where the determination DC fan is operating abnormally, described
According to the actual speed and the testing result of the DC fan, the step that the operating status of the DC fan is controlled
Suddenly, it specifically includes: obtaining setting speed corresponding with the actual speed；Calculate the actual speed and the setting speed
Between rotating speed difference；Judge whether the rotating speed difference reaches default typhoon protection threshold value；Reach institute in the rotating speed difference
When stating default typhoon protection threshold value, stop transmitting speed controling signal to the DC fan, and cut off the DC fan
Power supply；When the rotating speed difference is not up to the default typhoon protection threshold value, controls the DC fan and continue to run.
When DC fan is operating abnormally, predetermined table is reached by the rotating speed difference between actual speed and setting speed
When wind protection threshold value (predetermined typhoon protection threshold value can be configured according to actual needs), stop transmitting revolving speed control to DC fan
Signal processed, and the power supply of DC fan is cut off, so that control DC fan is out of service in time, to avoid in air conditioner
Device is damaged, and whole process is not necessarily to detect the duration that rotating speed difference reaches predetermined typhoon protection threshold value, to avoid detection
Overlong time and be unable to control DC fan and shut down in time.
According to one embodiment of present invention, before the actual speed of the detection DC fan the step of, also
It include: to be closed the power supply of the DC fan, and at second when receiving the open command to the DC fan
Speed controling signal is transmitted to the DC fan after length, to control the DC fan operation；When detecting the air conditioner
When under standby or shutdown status, the power supply of the DC fan is cut off.
The DC fan of air conditioner is not run always, when receiving the open command to DC fan, is closed direct current
The power supply of blower, and the second duration (the second duration is the second duration after the power supply of closure DC fan, the
Two durations can be configured according to actual needs) when to DC fan transmit speed controling signal with control DC fan operation,
When so that only having use demand to DC fan, DC fan starting operation is just controlled, and is in standby in air conditioner or stops
Under machine state, the power supply of DC fan is cut off so that DC fan does not start or stop operation, significantly reduces air-conditioning
The power consumption of device system.
Fig. 2 shows the schematic block diagrams of the control device of the air conditioner of embodiment according to the present invention.
As shown in Fig. 2, the control device 200 of the air conditioner of embodiment according to the present invention, the air conditioner includes outdoor
Machine, the outdoor unit include DC fan, and the control device 200 of the air conditioner includes: that first detection unit 202, second is examined
Survey unit 204 and control unit 206.
Wherein, first detection unit 202 is used in the DC fan operational process, detects the reality of the DC fan
Border revolving speed；Second detection unit 204 for detect the DC fan whether normal operation, to obtain testing result；Control is single
Member 206 is for controlling the operating status of the DC fan according to the actual speed and the testing result.
By detect DC fan actual speed and detection DC fan whether normal operation, and according to actual speed
And testing result controls the operating status of DC fan, to prevent the device in air conditioner under typhoon weather environment
It is damaged, improves the reliability of air conditioner, promote the usage experience of user.Wherein, the actual speed tool of DC fan is detected
Body can be by the pulse signal of acquisition DC fan feedback, and calculates according to collected pulse signal the reality of DC fan
Revolving speed.
The control device 200 of air conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, the second detection unit 204 is specifically used for: judging that the actual speed is
It is no to be within the scope of preset rotation speed；When the actual speed is within the scope of the preset rotation speed, the DC fan is determined
Normal operation；When the actual speed is not within the scope of the preset rotation speed, determine that the DC fan is operating abnormally.
By judging whether actual speed is within the scope of preset rotation speed, (preset rotation speed range can carry out according to actual needs
Setting), DC fan normal operation is determined when actual speed is within the scope of preset rotation speed, is not turned default in actual speed
It determines that DC fan is operating abnormally when in fast range, ensure that the accuracy of the state-detection of DC fan, be that subsequent basis is straight
Flow fan is operating abnormally or normal condition takes different control measure to provide premise guarantee.
According to one embodiment of present invention, in the case where the determination DC fan normal operation, the control
Unit 206 processed is specifically used for: obtaining setting speed corresponding with the actual speed；The actual speed is calculated to set with described
Determine the rotating speed difference between revolving speed；Judge whether the rotating speed difference reaches default typhoon protection threshold value, and described turn of judgement
Whether the duration that speed difference value reaches the predetermined typhoon protection threshold value reaches the first duration；Reach institute in the rotating speed difference
State default typhoon protection threshold value, and the rotating speed difference reaches the duration of the predetermined typhoon protection threshold value and reaches described the
When one duration, stop transmitting speed controling signal to the DC fan, and cut off the power supply of the DC fan；Institute
State that rotating speed difference is not up to the default typhoon protection threshold value and/or the rotating speed difference reaches the predetermined typhoon protection threshold value
Duration when being not up to first duration, control the DC fan and continue to run.
When the DC fan normal operation, reach pre- by the rotating speed difference between actual speed and setting speed
Determine typhoon protection threshold value (predetermined typhoon protection threshold value can be configured according to actual needs) and rotating speed difference reaches predetermined typhoon
When the duration of protection threshold value reaches the first duration (the first duration can be configured according to actual needs), stop to direct current wind
Machine transmits speed controling signal, and cuts off the power supply of DC fan, so that DC fan is out of service, while passing through detection
Rotating speed difference reaches the duration of predetermined typhoon protection threshold value, reduces probability of miscarriage of justice caused by other factors, it is ensured that whole
The accuracy of a control process, by protecting threshold value and/or rotating speed difference to reach predetermined in the not up to default typhoon of rotating speed difference
When the duration of typhoon protection threshold value is not up to the first duration, control DC fan is continued to run, it is ensured that does not influence direct current wind
The normal operation of machine.
According to one embodiment of present invention, in the case where the determination DC fan is operating abnormally, the control
Unit 206 processed is specifically used for: obtaining setting speed corresponding with the actual speed；The actual speed is calculated to set with described
Determine the rotating speed difference between revolving speed；Judge whether the rotating speed difference reaches default typhoon protection threshold value；In the rotating speed difference
When reaching the default typhoon protection threshold value, stop transmitting speed controling signal to the DC fan, and cut off the direct current
The power supply of blower；When the rotating speed difference is not up to the default typhoon protection threshold value, control the DC fan after
Reforwarding row.
When DC fan is operating abnormally, predetermined table is reached by the rotating speed difference between actual speed and setting speed
When wind protection threshold value (predetermined typhoon protection threshold value can be configured according to actual needs), stop transmitting revolving speed control to DC fan
Signal processed, and the power supply of DC fan is cut off, so that control DC fan is out of service in time, to avoid in air conditioner
Device is damaged, and whole process is not necessarily to detect the duration that rotating speed difference reaches predetermined typhoon protection threshold value, to avoid detection
Overlong time and be unable to control DC fan and shut down in time.
According to one embodiment of present invention, described control unit 206 is also used to: when receiving to the DC fan
When open command, it is closed the power supply of the DC fan, and transmits revolving speed control to the DC fan after the second duration
Signal processed, to control the DC fan operation；When detecting that the air conditioner is under standby or shutdown status, institute is cut off
State the power supply of DC fan.
The DC fan of air conditioner is not run always, when receiving the open command to DC fan, is closed direct current
The power supply of blower, and the second duration (the second duration is the second duration after the power supply of closure DC fan, the
Two durations can be configured according to actual needs) when to DC fan transmit speed controling signal with control DC fan operation,
When so that only having use demand to DC fan, DC fan starting operation is just controlled, and is in standby in air conditioner or stops
Under machine state, the power supply of DC fan is cut off so that DC fan does not start or stop operation, significantly reduces air-conditioning
The power consumption of device system.
Fig. 3 shows the schematic block diagram of the air conditioner of embodiment according to the present invention.
As shown in figure 3, the air conditioner 300 of embodiment according to the present invention, comprising: the control of air conditioner as shown in Figure 2
Device 200.
Technical solution of the present invention is described further below in conjunction with Fig. 4 and Fig. 5.
As shown in figure 4, air conditioner includes controller MCU (Microcontroller Unit) 402, DC fan power supply control
Circuit 404, DC fan rotating-speed control circuit 406, DC fan Rotating speed measring circuit 408 and DC fan 410 processed.
Wherein, the DC fan control method of air-conditioner outdoor unit has: 1) controller MCU controls PWM to DC fan
The control of (Pulse Width Modulation, pulse width modulation) signal；2) controller MCU is to DC fan speed feedback
Signal parsing；3) control of DC fan power supply；4) parsing of the controller MCU to Typhoon Information.
DC fan control circuit is divided into three control circuits: first is that (the power supply control of DC fan power control circuit 404
Circuit can be switching circuit, such as: relay, silicon-controlled etc.)；Second is that direct current wind rotating-speed control circuit 406；Third is that direct current wind
Machine Rotating speed measring circuit 408.
Controller MUC402 carries out real-time control and detection to DC fan power supply and revolving speed, and is sentenced by controller MCU
The switch state of disconnected DC fan power control circuit 404 provides power supply for DC fan operation.If DC fan needs to transport
Turn, then 15S (second) is closed DC fan power control circuit before DC fan operates.When the DC fan of outdoor unit is by typhoon
When operating, at this moment relay is disconnected, and on the current reflux to frequency converter for preventing DC fan power generation from generating, causes to damage to frequency converter
It is bad.
Specific control process is as shown in Figure 5, comprising:
Step 502, the DC fan control interface of controller MCU receives boot-strap information, and controller MCU is to DC fan
It is controlled.Specifically, under air-conditioner standby, shutdown status: DC fan power supply disconnects, and DC fan does not start；Work as air-conditioning
When device detects power-on command, 15S is closed DC power supply before DC fan is opened, and normally starts DC fan.
Step 504, it is closed DC fan power control circuit.
Step 506,15S (i.e. the second duration can be specifically arranged according to actual needs) sends the PWM of DC fan revolving speed afterwards
Control signal.
Step 508, judge whether the wind speed of DC fan is normal, if so, executing step 510；It is no to then follow the steps 522.
Step 510, the feedback signal of real-time monitoring DC fan calculates actual speed.
Step 512, whether the rotational speed difference for comparing actual speed and setting speed reaches default typhoon protection threshold value, if so,
Execute step 514；Otherwise, step 516 is executed.
Step 514, rotational speed difference reaches default typhoon protection threshold value, and continues for some time (i.e. the first duration).Such as setting
The rotational speed difference of revolving speed and actual speed is greater than or equal to 300rpm and when continuing 2min (minute) or more, then air conditioner out of service
And DC fan, it is then turned off DC fan power supply, into protection.
Step 516, DC fan continues to run.
Step 518, the control power supply of DC fan is disconnected, MCU stops sending DC fan pwm control signal.
Step 520, air-conditioner outdoor unit enters typhoon protection.
Step 522, whether the rotational speed difference for comparing actual speed and setting speed reaches default typhoon protection threshold value, if so,
Execute step 524；Otherwise, step 526 is executed.
Step 524, the control power supply of DC fan is disconnected, MCU stops sending DC fan pwm control signal.
Step 526, DC fan continues to run.
Step 528, air-conditioner outdoor unit enters typhoon protection.
In the above-described embodiments, protection processing is carried out to the DC fan of direct-flow air conditioner device under typhoon weather environment, prevented
Only air-conditioning equipment device is burnt, and improves the reliability of air conditioner, and the air-conditioning service of more comfortableization is brought to user.
The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, and the invention proposes a kind of controls of new air conditioner
Scheme processed controls the operating status of the DC fan of air conditioner, to prevent in air conditioner under typhoon weather environment
Device is damaged, and improves the reliability of air conditioner, promotes the usage experience of user.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of control method of air conditioner, which is characterized in that the air conditioner includes outdoor unit, and the outdoor unit includes direct current
The control method of blower, the air conditioner includes:
In the DC fan operational process, the actual speed of the DC fan is detected；
Judge whether the actual speed is within the scope of preset rotation speed；
When the actual speed is within the scope of the preset rotation speed, the DC fan normal operation is determined；
Obtain setting speed corresponding with the actual speed；
Calculate the rotating speed difference between the actual speed and the setting speed；
Judge whether the rotating speed difference reaches default typhoon protection threshold value, and judges that the rotating speed difference reaches described predetermined
Whether the duration of typhoon protection threshold value reaches the first duration；
Reach the default typhoon protection threshold value in the rotating speed difference, and the rotating speed difference reaches the predetermined typhoon protection
When the duration of threshold value reaches first duration, stop transmitting speed controling signal to the DC fan, and cut off institute
State the power supply of DC fan；
The default typhoon protection threshold value is not up in the rotating speed difference and/or the rotating speed difference reaches the predetermined typhoon
When the duration of protection threshold value is not up to first duration, controls the DC fan and continue to run.
2. the control method of air conditioner according to claim 1, which is characterized in that further include:
When the actual speed is not within the scope of the preset rotation speed, determine that the DC fan is operating abnormally.
3. the control method of air conditioner according to claim 2, which is characterized in that
In the case where determining that the DC fan is operating abnormally；
Obtain setting speed corresponding with the actual speed；
Calculate the rotating speed difference between the actual speed and the setting speed；
Judge whether the rotating speed difference reaches default typhoon protection threshold value；
When the rotating speed difference reaches the default typhoon protection threshold value, stop transmitting revolving speed control letter to the DC fan
Number, and cut off the power supply of the DC fan；
When the rotating speed difference is not up to the default typhoon protection threshold value, controls the DC fan and continue to run.
4. the control method of air conditioner according to any one of claim 1 to 3, which is characterized in that in the detection institute
Before the step of stating the actual speed of DC fan, further includes:
When receiving the open command to the DC fan, it is closed the power supply of the DC fan, and at second
Speed controling signal is transmitted to the DC fan when long, to control the DC fan operation；
When detecting that the air conditioner is under standby or shutdown status, the power supply of the DC fan is cut off.
5. a kind of control device of air conditioner, which is characterized in that the air conditioner includes outdoor unit, and the outdoor unit includes direct current
The control device of blower, the air conditioner includes:
First detection unit, for detecting the actual speed of the DC fan in the DC fan operational process；
Second detection unit, for judging whether the actual speed is within the scope of preset rotation speed；
The second detection unit is also used to determine the direct current when the actual speed is within the scope of the preset rotation speed
Fan operation is normal；
Control unit, in the case where the second detection unit determines the DC fan normal operation；
Obtain setting speed corresponding with the actual speed；
Calculate the rotating speed difference between the actual speed and the setting speed；
Judge whether the rotating speed difference reaches default typhoon protection threshold value, and judges that the rotating speed difference reaches described predetermined
Whether the duration of typhoon protection threshold value reaches the first duration；
Reach the default typhoon protection threshold value in the rotating speed difference, and the rotating speed difference reaches the predetermined typhoon protection
When the duration of threshold value reaches first duration, stop transmitting speed controling signal to the DC fan, and cut off institute
State the power supply of DC fan；
The default typhoon protection threshold value is not up in the rotating speed difference and/or the rotating speed difference reaches the predetermined typhoon
When the duration of protection threshold value is not up to first duration, controls the DC fan and continue to run.
6. the control device of air conditioner according to claim 5, which is characterized in that the second detection unit is also used to:
When the actual speed is not within the scope of the preset rotation speed, determine that the DC fan is operating abnormally.
7. the control device of air conditioner according to claim 6, which is characterized in that described control unit is also used to:
In the case where the second detection unit determines that the DC fan is operating abnormally；
Obtain setting speed corresponding with the actual speed；
Calculate the rotating speed difference between the actual speed and the setting speed；
Judge whether the rotating speed difference reaches default typhoon protection threshold value；
When the rotating speed difference reaches the default typhoon protection threshold value, stop transmitting revolving speed control letter to the DC fan
Number, and cut off the power supply of the DC fan；
When the rotating speed difference is not up to the default typhoon protection threshold value, controls the DC fan and continue to run.
8. the control device of air conditioner according to any one of claims 5 to 7, which is characterized in that described control unit
It is also used to:
When receiving the open command to the DC fan, it is closed the power supply of the DC fan, and at second
Speed controling signal is transmitted to the DC fan when long, to control the DC fan operation；
When detecting that the air conditioner is under standby or shutdown status, the power supply of the DC fan is cut off.
9. a kind of air conditioner characterized by comprising
The control device of air conditioner as described in any one of claim 5 to 8.
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| CN106949605A (en) * | 2017-04-10 | 2017-07-14 | 广东美的暖通设备有限公司 | Air-conditioner, outdoor unit accumulated snow determination methods and system |
| CN109405171B (en) * | 2018-09-30 | 2021-04-20 | 青岛海尔空调器有限总公司 | Control method and device for air conditioning system |
| CN111121176B (en) * | 2020-01-19 | 2022-03-18 | 青岛海信日立空调系统有限公司 | Air condensing units and air conditioner |
| CN114353299B (en) * | 2021-12-07 | 2023-06-16 | 珠海格力电器股份有限公司 | Control method of air conditioning system and air conditioning system |
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