CN106765950A - The control method of air-conditioning heating system, control device and air-conditioner - Google Patents
The control method of air-conditioning heating system, control device and air-conditioner Download PDFInfo
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- CN106765950A CN106765950A CN201611206003.6A CN201611206003A CN106765950A CN 106765950 A CN106765950 A CN 106765950A CN 201611206003 A CN201611206003 A CN 201611206003A CN 106765950 A CN106765950 A CN 106765950A
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- air
- conditioning
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- unit
- heating
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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
- F24F11/62—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of control method of air-conditioning heating system, control device and air-conditioner, wherein, the control method of air-conditioning heating system includes：Detection outdoor temperature；When the outdoor temperature is less than the first preset temperature threshold value and the air-conditioning is in heating mode or heating mode time out of service less than preset time threshold, the chassis electric heater of the air-conditioning is controlled to be heated.By technical scheme, the condensation water freezing in the unit chassis for remaining in air-conditioning can be reduced, the possibility of the discharge of condensed water after influence, and then reduce the influence that the heat transfer effect of heat exchanging device bottom is caused, improve whole air-conditioning system using effect and reliability of operation.
Description
Technical field
The present invention relates to air-conditioning device field, in particular to a kind of control method of air-conditioning heating system, Yi Zhongkong
Adjust the control device and a kind of air-conditioner of heating system.
Background technology
With the improvement of people ' s living standards with the enhancing of awareness of saving energy, with its energy-conservation, control is flexible, easily installs for air-conditioning
The features such as with safeguarding, vast average family is come into, and be increasingly widely applied.But under low-temperature condition, due to
Evaporating temperature than relatively low, the factor such as easy frosting of evaporator, to ensure that air-conditioner set reliablely and stablely runs, it is necessary to removed
Frost.A large amount of condensed waters can be formed during defrosting, can be excluded by the osculum on unit chassis under normal circumstances, in environment
Temperature than it is relatively low when, often defrost and one terminate, set heat exchange device and chassis temperature are reduced at once, have little time discharge clean
Condensed water, is gathered in chassis and is accumulated as ice, and chassis osculum can be caused to block when serious, and the defrosting condensed water after influence is just
Often discharge, or even the heat transfer effect of exchanger base can be fed through to, so as to influence whole air-conditioning system using effect with operation
Reliability.In the prior art, to solve the above problems, heater is set up on chassis, temperature is relatively low and air-conditioning is in and heats
During pattern, chassis is heated.However, after air-conditioning heating pattern terminates operation, if stopping the heating to chassis simultaneously,
The condensed water that then remaining in does not have in chassis discharge clean can flash freeze, the defrosting condensed water after influence at low ambient temperatures
Normal discharge.
Therefore, after how preventing air-conditioning to be in heating mode or stop heating mode, in remaining in the unit chassis of air-conditioning
Condensed water icing effect discharge turn into problem demanding prompt solution.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of control method of air-conditioning heating system.
It is another object of the present invention to propose a kind of control device of air-conditioning heating system.
A further object of the present invention is to propose a kind of air-conditioner.
To achieve the above object, a kind of technical scheme according to the first aspect of the invention, it is proposed that air-conditioning heating system
Control method, including：Detection outdoor temperature；The first preset temperature threshold value is less than in outdoor temperature and air-conditioning is in heating mode
Or the heating mode time out of service be less than preset time threshold when, control air-conditioning chassis electric heater heated.
The control method of the air-conditioning heating system of technical scheme according to the first aspect of the invention, can be according to outdoor temperature
With the comparing of the first preset temperature threshold value, and air-conditioning whether whether the time terminated in heating mode or heating mode exceeds
The default time determines whether to heat unit chassis.If the air-conditioning heating pattern end time falls short of, and temperature
Less than the first preset temperature threshold value, then the condensed water that remnants are there may be in the unit chassis of air-conditioning can freeze, after influence
Condensed water is discharged.Therefore, if temperature is less than the first preset temperature threshold value, heating mode or heating mode knot are in air-conditioning
Beam is interior for a period of time, and unit chassis are heated, and is prevented from after air-conditioning is in heating mode or stops heating mode, remaining
Condensation water freezing in the unit chassis of air-conditioning, the discharge of condensed water after influence, and then prevent changing for heat exchanging device bottom
Thermal effect is impacted, and improves whole air-conditioning system using effect and reliability of operation.
The control method of the air-conditioning heating system of above-mentioned technical proposal of the invention, can also have following technology special
Levy：
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：By temperature
Sensor detects outdoor temperature；Detection temperature sensor whether failure, if it is determined that temperature sensor fault, then control air-conditioning stop
Only run.
In the technical scheme, if the sensor that air-conditioning is used for temperature outside sensing chamber breaks down, cannot obtain just
True outdoor temperature, it is impossible to during learning air-conditioning heating because the condensed water that causes of defrosting whether can ice blockage osculum,
Therefore, in order to prevent air-conditioning in the case where outdoor temperature can not be detected, condensed water ice blockage osculum, to air-conditioner set
Heating effect and operational reliability are impacted, and now judge that air-conditioning is in malfunction, and control air-conditioning is out of service.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：To air-conditioning
Unit chassis are carried out in heating process, if the time out of service for detecting air-conditioning heating pattern exceedes preset time threshold,
Then control stops the heating of chassis electric heater.
In the technical scheme, if when temperature is less than certain value, the air-conditioning heating pattern time out of service is beyond pre-
If the time, then it is assumed that in Preset Time, the heating to unit chassis is enough to make condensed water that may be remaining normally discharge unit
Chassis, therefore after the Preset Time, control stops heating of the chassis electric heater to unit chassis, in this manner it is ensured that
Do not result in condensation water-ice it is stifled while, save electric energy.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：To unit bottom
Disk is carried out in heating process, if detecting outdoor temperature is not less than the second preset temperature threshold value, control stops chassis electric heating
The heating of device.
In the technical scheme, if in chassis electric heater carries out heating process to unit chassis, outdoor temperature lifting
To more than the second preset temperature threshold value, condensed water will not occur icing phenomenon at such a temperature, would not also cause chassis draining
The situation of hole plug, now stops heating of the chassis electric heater to unit chassis, can save electric energy.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：If it is determined that
Temperature sensor fault, then alert.
In the technical scheme, if the sensor that air-conditioning is used for temperature outside sensing chamber breaks down, sky cannot be learnt
In modulation thermal process because the condensed water that causes of defrosting whether can ice blockage osculum, therefore, in order to prevent air-conditioning can not
In the case of detection outdoor temperature, condensed water ice blockage osculum, heating effect and operational reliability to air-conditioner set are made
Into influence, control air-conditioning alert, be used to point out user's air-conditioning break down and failure source, be easy to user to enter
The further treatment of row.
A kind of technical scheme according to a second aspect of the present invention, it is also proposed that control device of air-conditioning heating system, including：
Temperature detecting unit, for detecting outdoor temperature；Control unit, for being less than the first preset temperature threshold value and sky in outdoor temperature
The time out of service in heating mode or heating mode is mediated less than preset time threshold, controls the chassis electric heater of air-conditioning to enter
Row heating.
The control device of the air-conditioning heating system of technical scheme according to a second aspect of the present invention, if temperature detecting unit is examined
The outdoor temperature for measuring is less than preset temperature threshold value, and air-conditioning is in heating mode or the heating mode time out of service is less than
Preset time threshold, then control unit control air-conditioning chassis electric heater unit chassis are heated.If air-conditioning is in system
Heat pattern or heating mode end time fall short of, and temperature is less than certain value, then be there may be in the unit chassis of air-conditioning residual
Remaining condensed water can freeze, the condensed water discharge after influence.Therefore, if temperature is less than certain value, system is in air-conditioning
Heat pattern or heating mode terminate in Preset Time, and control unit control chassis electric heater is heated to unit chassis, can
After preventing air-conditioning from stopping heating mode, the condensation water freezing in the unit chassis of air-conditioning is remained in, the row of condensed water after influence
Put, and then prevent the heat transfer effect of heat exchanging device bottom from impacting, the whole air-conditioning system using effect of raising can with operation
By property.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：Fault detect
Unit, for detection temperature detection unit whether failure, if it is determined that temperature detecting unit failure, then control air-conditioning stop fortune
OK.
In the technical scheme, if the temperature detecting unit that air-conditioning is used for temperature outside sensing chamber breaks down, cannot
During learning air-conditioning heating because the condensed water that causes of defrosting whether can ice blockage osculum, therefore, in order to prevent air-conditioning
In the case where temperature detecting unit breaks down, condensed water ice blockage osculum, to the heating effect and fortune of air-conditioner set
Row reliability is impacted, and now fault detection unit judges that air-conditioning is in malfunction, and control air-conditioning is out of service.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that control unit is additionally operable to：To machine
Group chassis is carried out in heating process, if the time out of service for detecting air-conditioning heating pattern exceedes preset time threshold,
Control stops the heating of chassis electric heater.
In the technical scheme, if when temperature is less than certain value, the air-conditioning heating pattern time out of service exceeds one
Fix time, then it is assumed that within the time, control unit controls heating of the air-conditioning to unit chassis to be enough to make the condensation of possible remnants
Water normally discharges unit chassis, therefore after the time, control unit control air-conditioning stops heating unit chassis, this
Sample, it is ensured that do not result in condensation water-ice it is stifled while, save electric energy.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that control unit is additionally operable to：To machine
Group chassis is carried out in heating process, if detecting outdoor temperature is not less than the second preset temperature threshold value, control stops chassis
The heating of electric heater.
In the technical scheme, if in air-conditioning carries out heating process to unit chassis, outdoor temperature lifting to second
More than preset temperature threshold value, condensed water will not occur icing phenomenon at such a temperature, would not also cause chassis draining hole plug
Situation, now control unit control air-conditioning stop to unit chassis heat, electric energy can be saved.
A technical scheme of the invention, in the above-mentioned technical solutions, it is preferable that further include：Alarm unit,
For in the case of temperature detection unit failure, alert.
In the technical scheme, if temperature detecting unit breaks down, during cannot learning air-conditioning heating, because
The condensed water that causes of defrosting whether can ice blockage osculum, therefore, in order to prevent air-conditioning from can not detect the feelings of outdoor temperature
Under condition, condensed water ice blockage osculum, heating effect and operational reliability to air-conditioner set are impacted, then alarm unit
Alert, be used to point out user's air-conditioning break down and failure source, be easy to user to be further processed.
A kind of technical scheme according to a third aspect of the present invention, it is also proposed that air-conditioner, including：Second aspect present invention skill
The control device of any air-conditioning heating system in art scheme；Chassis electric heater, on the chassis of unit installed outdoors, in control
Heat on chassis under the control of device processed to outdoor unit.
The air-conditioner of technical scheme according to a third aspect of the present invention, control device is used to control the bottom of unit installed outdoors
Chassis electric heater on disk is heated to the chassis of outdoor unit.Specific control method and control mode are in first aspect skill
Description has been carried out in art scheme and second aspect technical scheme, as described above with practice of the invention, can be to the
Tripartite's surface technology scheme understands, and will not be repeated here.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 shows the exemplary flow of the control method of air-conditioning heating system according to first embodiment of the invention
Figure；
Fig. 2 shows the schematic block diagram of the control device of the air-conditioning heating system of second embodiment of the invention；
Fig. 3 shows the schematic block diagram of the air-conditioner of the 3rd embodiment of the invention；
Fig. 4 shows the schematic flow diagram of the control logic of air-conditioning heating system according to an embodiment of the invention.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the exemplary flow of the control method of air-conditioning heating system according to first embodiment of the invention
Figure.
As shown in figure 1, the control method of air-conditioning heating system according to first embodiment of the invention, including：Step
S102, detects outdoor temperature；Step S104, outdoor temperature less than the first preset temperature threshold value and air-conditioning be in heating mode or
When the time out of service of heating mode is less than preset time threshold, the chassis electric heater of air-conditioning is controlled to be heated.
If being used to detect that the temperature sensor of outdoor temperature breaks down in step s 102, air-conditioning system cannot be learnt
In thermal process, because whether the condensed water that defrosting is caused can ice blockage osculum.Therefore, in order to prevent the air-conditioning from can not detect
In the case of outdoor temperature, condensed water ice blockage osculum, heating effect and operational reliability to air-conditioner set cause shadow
Ring, then now also judge that air-conditioning is in malfunction, control air-conditioning is out of service.Additionally, air-conditioning alert is also controlled,
Be used to point out user's air-conditioning break down and failure source, be easy to user to be further processed.
In step S104, during the unit chassis of air-conditioning are carried out with heating process, if detect outdoor temperature be not less than
Second preset temperature threshold value or air-conditioning heating pattern time out of service exceed preset time threshold, then control stops chassis electric heating
Device is heated to unit chassis.If that is, when temperature is less than certain value, the air-conditioning heating pattern time out of service exceeds
Certain hour, then it is assumed that within a certain period of time, the heating to unit chassis is enough to make condensed water that may be remaining normally discharge machine
Group chassis, therefore after the time, stop heating of the chassis electric heater to unit chassis, in this manner it is ensured that will not
While causing condensation water-ice stifled, electric energy is saved.Additionally, in chassis electric heater carries out heating process to unit chassis, if
Detect outdoor temperature to be lifted to more than the second preset temperature threshold value, condensed water will not occur icing phenomenon at such a temperature,
The situation of chassis draining hole plug would not be caused, now also stops heating of the chassis electric heater to unit chassis.
In the present embodiment, according to the comparing of the outdoor temperature and preset temperature threshold value detected in step S102, step
S104 judges whether whether the time terminated in heating mode or heating mode exceeds the default time to determine whether air-conditioning
Unit chassis are heated.If air-conditioning is in heating mode or heating mode end time and falls short of, and temperature is less than the
One preset temperature threshold value, the then condensed water that remnants are there may be in the unit chassis of air-conditioning can freeze, the condensed water after influence
Discharge.Therefore, if temperature is less than the first preset temperature threshold value, heating mode is in or in air-conditioning heating pattern knot in air-conditioning
Beam is interior for a period of time, and unit chassis are heated, and after being prevented from air-conditioning stopping heating mode, remains in the unit bottom of air-conditioning
Condensation water freezing in disk, the discharge of condensed water after influence, and then prevent the heat transfer effect of heat exchanging device bottom from impacting,
Improve whole air-conditioning system using effect and reliability of operation.
Fig. 2 shows the schematic block diagram of the control device of the air-conditioning heating system of second embodiment of the invention.
As shown in Fig. 2 the control device 200 of the air-conditioning heating system of second embodiment of the invention, including：Temperature
Degree detection unit 202, for detecting outdoor temperature；Control unit 204, for being less than the first preset temperature threshold value in outdoor temperature
And air-conditioning is in heating mode or the time out of service of heating mode is less than preset time threshold, controls the chassis electric heating of air-conditioning
Device is heated.
The comparing of the outdoor temperature that detection of air-conditioning is arrived and preset temperature threshold value, control are controlled according to temperature detecting unit 202
Unit 204 judges whether whether the time terminated in heating mode or heating mode is less than the default time, and according to judgement
As a result, the chassis electric heater of control air-conditioning is heated to unit chassis.If air-conditioning is in heating mode or heating mode knot
The beam time falls short of, and temperature is less than certain value, then the condensed water that remnants are there may be in the unit chassis of air-conditioning can freeze, shadow
Condensed water discharge after sound.Therefore, if temperature is less than certain value, terminate in a period of time in air-conditioning heating pattern, control
The chassis electric heater of the control air-conditioning of unit processed 204 is heated to unit chassis, is prevented from air-conditioning and is in heating mode or stops
Only after heating mode, the condensation water freezing in the unit chassis of air-conditioning is remained in, the discharge of condensed water after influence, and then prevent
The heat transfer effect of heat exchanging device bottom is impacted, and improves whole air-conditioning system using effect and reliability of operation.
Additionally, also including：Fault detection unit 206, for detection temperature detection unit whether failure, if air-conditioning is used for
Detect that the temperature detecting unit 202 of outdoor temperature breaks down, during cannot learning air-conditioning heating, because what defrosting was caused
Condensed water whether can ice blockage osculum, therefore, for the situation for preventing air-conditioning from being broken down in temperature detecting unit 202
Under, condensed water ice blockage osculum, heating effect and operational reliability to air-conditioner set are impacted, now fault detect
Unit 206 judges that air-conditioning is in malfunction, and control air-conditioning is out of service.
Specifically, control unit 204 be additionally operable to temperature be less than certain value when, if unit chassis are carried out it is heated
Cheng Zhong, the time out of service for detecting air-conditioning heating pattern exceedes preset time threshold, then it is assumed that within the time, and control is single
Unit 204 controls heating of the chassis electric heater of air-conditioning to unit chassis to be enough to make condensed water that may be remaining normally discharge unit bottom
Disk, therefore after the time, the control air-conditioning of control unit 204 stops heating unit chassis, in this manner it is ensured that not
While condensation water-ice can be caused stifled, electric energy is saved.
Control unit 204 is additionally operable in air-conditioning carries out heating process to unit chassis, is detected outdoor temperature lifting and is arrived
When more than second preset temperature threshold value, condensed water will not occur icing phenomenon at such a temperature, would not also cause chassis draining
The situation of hole plug, the chassis electric heater of the now control of control unit 204 air-conditioning stops heating unit chassis, can save electricity
Energy.
In addition, the control device 200 of air-conditioning heating system also includes alarm unit 208, for being examined in temperature
In the case of surveying the failure of unit 202, alert.If temperature detecting unit 202 breaks down, air-conditioning cannot be learnt
In heating operations because the condensed water that causes of defrosting whether can ice blockage osculum, therefore, in order to prevent air-conditioning to examine
In the case of surveying outdoor temperature, condensed water ice blockage osculum, heating effect and operational reliability to air-conditioner set are caused
Influence, then the alert of alarm unit 208, be used to point out user's air-conditioning break down and failure source, be easy to use
Family is further processed.
Fig. 3 shows the schematic block diagram of the air-conditioner of the 3rd embodiment of the invention.
As shown in figure 3, the air-conditioner 300 of the 3rd embodiment of the invention, including the sky in second embodiment
Adjust the control device 200 of heating system；Chassis electric heater 302, on the chassis of unit installed outdoors, in control device
Heat on chassis under 200 control to outdoor unit.
The control device 200 of air-conditioning heating system is used to control the chassis electric heater on the chassis of unit installed outdoors
Heat on the chassis of 302 pairs of outdoor units.Specific control method and control mode are in one embodiment and second reality
Apply and have been carried out in example description, as described above with practice of the invention, the 3rd embodiment can be understood, herein not
Repeat again.
Fig. 4 shows the schematic flow diagram of the control logic of air-conditioning heating system according to an embodiment of the invention.
As shown in figure 4, the present embodiment increases a chassis electric heater on unit chassis, by the air-conditioning shown in Fig. 4
The control logic of heating system, controls the opening and closing of electric heater, it is ensured that the condensed water that unit is produced in normal defrost,
Can be transferred through the smooth discharge of chassis osculum, it is to avoid the ice that condensation water freezing is formed is blocked up, so as to ensure the reliable and stable of unit
Property operation.
In step S402, air-conditioning start operation, after start, into step S404, the moment detects outdoor environment temperature,
If detecting temperature sensor in step S406 to break down, into step S408, control air-conditioning is out of service；If
Detecting temperature sensor does not have failure or failure recovered, then into step S410, judge whether outdoor temperature is less than
First preset temperature threshold value, the first preset temperature threshold value is preferably 2 DEG C；If it is determined that outdoor temperature is not less than 2 DEG C, then enter
In step S404, continue to detect outdoor temperature, if it is determined that outdoor temperature is less than 2 DEG C, then into step S412, judge unit
Whether whether preset time threshold is less than, preset time threshold is preferably in heating mode or heating mode time out of service
It is 30 minutes；If it is determined that air-conditioning is in heating mode or time out of service is not less than 30 minutes, then into step S410,
Continuation judges that whether outdoor temperature, less than the first preset temperature threshold value, if it is determined that the time out of service is less than 30 minutes, is then entered
Enter unlatching chassis electric heater in step S414, then in step S416, judge outdoor temperature whether more than the second preset temperature
Whether threshold value, the second preset temperature threshold value is preferably 4 DEG C, or judge the unit heating mode time out of service more than default
Time threshold, i.e., 30 minute；If any one judged result is no in step S416, in return to step S414, continue on
Chassis electric heater, if any one judged result is yes in step S416, into step S418, control chassis electric heater stops
Only run, go successively to detect outdoor temperature in step S404.
Technical scheme, technical scheme proposed by the present invention, according to detection is described in detail above in association with accompanying drawing
The comparing of the outdoor temperature and the first preset temperature threshold value that arrive, and judge whether what is terminated in heating mode or heating mode
Whether the time is less than the judged result of default time, controls the chassis electric heater of air-conditioning to heat unit chassis, so
Can reduce the condensation water freezing in the unit chassis for remaining in air-conditioning, the possibility of the discharge of condensed water after influence, and then
Reduce the influence that the heat transfer effect of heat exchanging device bottom is caused, improve whole air-conditioning system using effect and reliability of operation.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of control method of air-conditioning heating system, it is characterised in that including：
Detection outdoor temperature；
The first preset temperature threshold value is less than in the outdoor temperature and the air-conditioning is in heating mode or heating mode stops fortune
When the row time is less than preset time threshold, the chassis electric heater of the air-conditioning is controlled to be heated.
2. the control method of air-conditioning heating system according to claim 1, it is characterised in that also include：
The outdoor temperature is detected by temperature sensor；
Detect the temperature sensor whether failure, if it is determined that the temperature sensor fault, then control the air-conditioning to stop
Operation.
3. the control method of air-conditioning heating system according to claim 1 and 2, it is characterised in that further include：
During the unit chassis of the air-conditioning are carried out with heating process, if the time out of service for detecting the heating mode surpasses
The preset time threshold is crossed, then control stops the heating of the chassis electric heater.
4. the control method of air-conditioning heating system according to claim 1 and 2, it is characterised in that further include：
During the unit chassis are carried out with heating process, if detecting the outdoor temperature is not less than the second preset temperature threshold
Value, then control stops the heating of the chassis electric heater.
5. the control method of air-conditioning heating system according to claim 2, it is characterised in that further include：
If it is determined that the temperature sensor fault, then alert.
6. a kind of control device of air-conditioning heating system, it is characterised in that including：
Temperature detecting unit, for detecting outdoor temperature；
Control unit, for being in heating mode or system less than the first preset temperature threshold value and the air-conditioning in the outdoor temperature
The heat pattern time out of service is less than preset time threshold, controls the chassis electric heater of the air-conditioning to be heated.
7. the control device of air-conditioning heating system according to claim 6, it is characterised in that also include：
Fault detection unit, for detect the temperature detecting unit whether failure, if it is determined that the temperature detecting unit therefore
Barrier, then control the air-conditioning out of service.
8. the control device of the air-conditioning heating system according to claim 6 or 7, it is characterised in that described control unit is also
For：
During the unit chassis are carried out with heating process, if the time out of service for detecting the heating mode exceed it is described
Preset time threshold, then control stops the heating of the chassis electric heater.
9. the control device of the air-conditioning heating system according to claim 6 or 7, it is characterised in that described control unit is also
For：
During the unit chassis are carried out with heating process, if detecting the outdoor temperature is not less than the second preset temperature threshold
Value, then control stops the heating of the chassis electric heater.
10. the control device of air-conditioning heating system according to claim 7, it is characterised in that further include：
Alarm unit, for it is determined that in the case of the temperature detecting unit failure, alert.
A kind of 11. air-conditioners, it is characterised in that including：
The control device of the air-conditioning heating system as any one of claim 6 to 10；
Chassis electric heater, on the chassis of unit installed outdoors, under the control of the control device to outdoor unit
Heated on chassis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206003.6A CN106765950A (en) | 2016-12-23 | 2016-12-23 | The control method of air-conditioning heating system, control device and air-conditioner |
| PCT/CN2017/081926 WO2018113154A1 (en) | 2016-12-23 | 2017-04-25 | Control method and control apparatus for air conditioner heating system, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206003.6A CN106765950A (en) | 2016-12-23 | 2016-12-23 | The control method of air-conditioning heating system, control device and air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106765950A true CN106765950A (en) | 2017-05-31 |
Family
ID=58920167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206003.6A Pending CN106765950A (en) | 2016-12-23 | 2016-12-23 | The control method of air-conditioning heating system, control device and air-conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106765950A (en) |
| WO (1) | WO2018113154A1 (en) |
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| CN109682018A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method of heating system, the control device of heating system and air conditioner |
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