CN106839282B - A kind of air conditioner and its control method for over-heating protection and system - Google Patents
A kind of air conditioner and its control method for over-heating protection and system Download PDFInfo
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- CN106839282B CN106839282B CN201710007442.2A CN201710007442A CN106839282B CN 106839282 B CN106839282 B CN 106839282B CN 201710007442 A CN201710007442 A CN 201710007442A CN 106839282 B CN106839282 B CN 106839282B
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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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- 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
- F24F11/62—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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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 discloses a kind of air conditioner and its control method for over-heating protection and systems; the present invention judges whether air conditioner is in dirty stifled state by complete machine electric current; judge whether indoor coil pipe sensor breaks down by the relationship of complete machine electric current, the absolute value of indoor coil pipe and indoor coil setting value difference and given threshold; indoors when coil pipe sensor failure, pass through the operating status of complete machine current control blower and compressor.Thus; the present invention can accurately distinguish the dirty stifled and two kinds of situations of indoor coil pipe sensor fault of air conditioner; and air conditioner is controlled according to every kind of situation; accurate overheating protection is carried out to air conditioner; superheat protecting function can really be played; and when can guarantee indoor coil pipe sensor fault, the normal operation of air conditioner reduces the influence to heating effect.
Description
Technical field
The invention belongs to air-conditioning technique fields, specifically, being to be related to a kind of air conditioner and its overheating protection control
Method and system.
Background technique
Existing air conditioner overheating protection is the method for taking detection indoor coil pipe, is dropped when coil temperature is excessively high indoors
Low outdoor fan revolving speed or outdoor fan are shut down or compressor shutdown to protect to air-conditioning system avoids system pressure
Power is excessive.For example, outdoor fan is by switching at a high speed low speed when indoor unit coil temperature is greater than 53 DEG C；Indoor unit coil temperature
When greater than 56 DEG C, outdoor fan is switched to shut down by low speed；When indoor unit coil temperature is greater than 70 DEG C, compressor shutdown；To drop
Low system pressure protects air-conditioning system.Air conditioner all has been subjected to related experiment simulation before factory, and overheating protection is not in ask
Topic.
But air-conditioning is after a period of use, can there is indoor coil pipe sensor fault or system situation dirty plugging.
Can have that system pressure is excessively high when system occurs dirty stifled and indoor coil pipe sensor detection temperature is not high, from
Without causing high voltage protective.
When indoor coil sensing temperature device breaks down, causes detection temperature not to be inconsistent with actual temperature, will cause outdoor
Blower, compressor malfunction or high voltage protective can not be implemented.
When indoor coil pipe sensor detection temperature is higher than the actual temperature of indoor coil, overheating protection can be entered,
The reduction of outdoor fan wind speed and the shutdown of compressor are caused, heating effect is influenced.When indoor coil pipe sensor detects temperature
When degree is lower than the actual temperature of indoor coil, and it will lead to overheating protection and can not implement, it is higher so as to cause the pressure of system, it is right
Entire air-conditioning system damages.
Summary of the invention
The object of the present invention is to provide a kind of control method for over-heating protection of air conditioner, solve existing air conditioner and pass through inspection
Survey indoor coil pipe carry out overheating protection existing for outdoor fan, compressor malfunction or high voltage protective can not be implemented
Technical problem.
For achieving the above object, the control method for over-heating protection of air conditioner provided by the invention uses following technical sides
Case is achieved:
A kind of control method for over-heating protection of air conditioner, the method are as follows:
Indoor temperature transmitter detects room temperature, and outdoor temperature sensor detects outdoor temperature, current detection module inspection
Complete machine electric current is surveyed, indoor coil pipe sensor detects indoor coil pipe；
Complete machine electric current setting range and indoor coil pipe setting value are read according to room temperature, outdoor temperature；
Complete machine electric current is judged whether within complete machine electric current setting range, if so, and indoor coil pipe and indoor coil
The absolute value of desired temperature difference is greater than given threshold, then indoor coil pipe sensor failure；If complete machine electric current is big
In the larger value of setting range, then air conditioner is dirty stifled, and control air conditioner is shut down；
When coil temperature sensor breaks down indoors, pass through the operation shape of complete machine current control blower and compressor
State.
The control method for over-heating protection of air conditioner as described above, when coil temperature sensor breaks down indoors, room
Interior temperature sensor detects room temperature, and outdoor temperature sensor detects outdoor temperature, and current detection module detects complete machine electric current,
Outdoor fan is read according to room temperature, outdoor temperature and unloads setting electric current, if complete machine electric current >=outdoor fan unloading setting electricity
Stream, controls the outdoor fan and shuts down.
The control method for over-heating protection of air conditioner as described above, when coil temperature sensor breaks down indoors, room
Interior temperature sensor detects room temperature, and outdoor temperature sensor detects outdoor temperature, and current detection module detects complete machine electric current,
Compressor shutdown setting electric current is read according to room temperature, outdoor temperature, if complete machine electric current >=compressor shutdown setting electric current, control
Make the compressor shutdown.
The control method for over-heating protection of air conditioner as described above, when the indoor coil pipe sensor failure,
The air conditioner issues fault cues；And/or；When the air conditioner is dirty stifled, the air conditioner issues dirty stifled prompt.
The invention also provides a kind of overheating protection control system of air conditioner, the system comprises:
Indoor temperature transmitter, for detecting room temperature and being sent to control module；
Outdoor temperature sensor, for detecting outdoor temperature and being sent to control module；
Indoor coil pipe sensor, for detecting indoor coil pipe and being sent to control module；
Current detection module, for detecting complete machine electric current and being sent to control module；
Control module, the control module be stored with the corresponding complete machine electric current setting range of room temperature, outdoor temperature and
Indoor coil pipe setting value, the control module are used to read the setting of complete machine electric current according to the room temperature, outdoor temperature
Range and indoor coil pipe setting value；The control module judge the complete machine electric current whether complete machine electric current setting range it
It is interior, if so, and control module judge that the difference of indoor coil pipe and indoor coil pipe setting value is greater than given threshold, then room
Inner coil pipe temperature sensor breaks down, and control module passes through the operating status of complete machine current control blower and compressor；If whole
Electromechanics stream is greater than the larger value of setting range, then air conditioner is dirty stifled, and the control module control air conditioner is shut down.
The overheating protection control system of air conditioner as described above, the control module are stored with room temperature, outdoor temp
Corresponding outdoor fan unloading setting electric current is spent, the control module judges complete machine electric current >=outdoor fan unloading setting electric current
When, it controls the outdoor fan and shuts down.
The overheating protection control system of air conditioner as described above, the control module are stored with room temperature, outdoor temp
Corresponding compressor shutdown setting electric current is spent, when the control module judges complete machine electric current >=compressor shutdown setting electric current, control
Make the compressor shutdown.
The overheating protection control system of air conditioner as described above, the control module judge that the indoor coil pipe passes
When sensor breaks down, the control module exports fault message；And/or；The control module judges that the air conditioner is dirty stifled
When, the control module exports dirty stifled information.
The overheating protection control system of air conditioner as described above, the system comprises wireless communication modules, are used for institute
The fault message and/or dirty stifled information for stating control module output are sent to other equipment.
The invention also provides a kind of air conditioner, the air conditioner includes above-mentioned control system.
Compared with prior art, the advantages and positive effects of the present invention are: the air condition of that present invention is stored with different outdoor temps
Complete machine electric current setting range and indoor coil pipe setting value under the conditions of degree, room temperature, when air-conditioning system operates normally.This
Invention judges whether air conditioner is in dirty stifled state by complete machine electric current, passes through complete machine electric current, indoor coil pipe and indoor disk
The absolute value of pipe setting value difference and the relationship of given threshold judge whether indoor coil pipe sensor breaks down, indoors
When coil pipe sensor failure, pass through the operating status of complete machine current control blower and compressor.Thus, the present invention can be quasi-
The dirty stifled and two kinds of situations of indoor coil pipe sensor fault of air conditioner are really distinguished, and air conditioner is controlled according to every kind of situation
System carries out accurate overheating protection to air conditioner, can really play superheat protecting function, and can guarantee indoor coil pipe
When sensor fault, the normal operation of air conditioner reduces the influence to heating effect.
After a specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Detailed description of the invention
Fig. 1 is the flow chart of specific embodiment of the invention air conditioner method for excessive heating protection.
Fig. 2 is the functional block diagram of specific embodiment of the invention air conditioner overheat protecting system.
Specific embodiment
The technical scheme of the present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
The present embodiment proposes a kind of control method for over-heating protection of air conditioner, whether judges air conditioner by complete machine electric current
In dirty stifled state, air conditioner is controlled when air conditioner is in dirty stifled state and is shut down；By complete machine electric current, indoor coil pipe with
The absolute value of indoor coil setting value difference and the relationship of given threshold judge whether indoor coil pipe sensor breaks down,
When coil temperature sensor breaks down indoors, pass through the operating status of complete machine current control blower and compressor.
Specifically, the control method for over-heating protection of the present embodiment air conditioner are as follows:
Indoor temperature transmitter detects room temperature, and outdoor temperature sensor detects outdoor temperature, current detection module inspection
Complete machine electric current is surveyed, indoor coil pipe sensor detects indoor coil pipe.
Complete machine electric current setting range and indoor coil pipe setting value are read according to room temperature, outdoor temperature.Air conditioner
Interior storage is by room temperature, the corresponding complete machine electric current setting range of outdoor temperature and indoor coil pipe setting value.
Complete machine electric current is judged whether within complete machine electric current setting range, if so, and indoor coil pipe and indoor coil
The absolute value of desired temperature difference is greater than given threshold, then indoor coil pipe sensor failure；Coil pipe temperature indoors
When spending sensor failure, pass through the operating status of complete machine current control blower and compressor.If complete machine electric current is greater than setting
The larger value of range, then air conditioner is dirty stifled, and control air conditioner is shut down.
When coil temperature sensor breaks down indoors, indoor temperature transmitter detects room temperature, and outdoor temperature passes
Sensor detects outdoor temperature, and current detection module detects complete machine electric current, reads outdoor fan according to room temperature, outdoor temperature and unloads
Setting electric current is carried, if complete machine electric current >=outdoor fan unloads setting electric current, control outdoor fan shuts down.
When coil temperature sensor breaks down indoors, indoor temperature transmitter detects room temperature, and outdoor temperature passes
Sensor detects outdoor temperature, and current detection module detects complete machine electric current, reads compressor shutdown according to room temperature, outdoor temperature
Setting electric current controls compressor shutdown if complete machine electric current >=compressor shutdown setting electric current.
Wherein, when indoor coil pipe sensor failure, air conditioner issues fault cues；It is empty when air conditioner is dirty stifled
Device is adjusted to issue dirty stifled prompt.
In the present embodiment, room temperature, outdoor temperature, complete machine electric current setting range, indoor coil pipe setting value, outdoor
Blower unloading setting electric current, compressor shutdown setting electric current can store as lower sheet form:
| Room temperature | Outdoor temperature | Complete machine electric current setting range | Indoor coil pipe setting value | Outdoor fan unloads setting electric current | Compressor shutdown setting electric current | |
| 1 | Tin1 | Tout1 | Imin1-Imax1 | T1 | Ixz1 | It1 |
| 2 | Tin2 | Tout2 | Imin2-Imax2 | T2 | Ixz2 | It2 |
| … | … | … | … | … | … | … |
| j | Tinj | Toutj | Iminj-Imaxj | Tj | Ixzj | Itj |
| … | … | … | … | … | … | … |
If it is Tin2 that indoor temperature transmitter, which detects room temperature, it is Tout2 that outdoor temperature sensor, which detects outdoor temperature,
It is I that current detection module, which detects complete machine electric current, and it is T that indoor coil pipe sensor, which detects indoor coil pipe,.Then according to interior
It is Imin2-Imax2 that temperature Tin2, outdoor temperature Tout2, which read complete machine electric current setting range, and indoor coil pipe setting value is
T2。
Complete machine electric current I is judged whether in complete machine electric current setting range Imin2-Imax2, if so, and indoor coil pipe T
It is greater than given threshold with the absolute value of indoor coil pipe setting value T2 difference, then indoor temperature transmitter breaks down；If room
Inner coil pipe temperature T and the absolute value of indoor coil pipe setting value T2 difference are less than or equal to given threshold, then air conditioner is normally transported
Row.If complete machine electric current I is greater than the larger value Imax2 of setting range, air conditioner is dirty stifled, and control air conditioner is shut down.
When temperature sensor breaks down indoors, pass through the operating status of complete machine current control blower and compressor.Tool
Body, indoor temperature transmitter detects room temperature Tinj, and outdoor temperature sensor detects outdoor temperature Toutj, current detecting
Module detects complete machine electric current I, reads outdoor fan according to room temperature Tinj, outdoor temperature Toutj and unloads setting electric current Ixzj
With compressor shutdown setting electric current Itj, if complete machine electric current I >=outdoor fan unloads setting electric current Ixzj, control outdoor fan stops
It only operates, if complete machine electric current I >=compressor shutdown setting electric current Itj, controls compressor shutdown.Wherein, compressor shutdown is set
Electric current is greater than outdoor fan and unloads setting electric current.
As shown in Figure 1, the method for the present embodiment includes the following steps:
S1, indoor temperature transmitter detect room temperature, and outdoor temperature sensor detects outdoor temperature, current detection module
Complete machine electric current is detected, indoor coil pipe sensor detects indoor coil pipe.
S2, complete machine electric current setting range and indoor coil pipe setting value are read according to room temperature, outdoor temperature.
S3, complete machine electric current is judged whether within complete machine electric current setting range, if so, entering step S5；If complete machine electric current
Greater than the larger value of setting range, S4 is entered step.If complete machine electric current is less than the smaller value of setting range, air conditioner is shut down, is had
Leakage of refrigerant may occur.
S4, air conditioner are dirty stifled, control air conditioner shutdown.
The absolute value of S5, indoor coil pipe and indoor coil pipe setting value difference are greater than given threshold, if it is not, into
Step S6；If so, entering step S7；
S6, air conditioner operate normally.
S7, indoor coil pipe sensor failure, pass through the operating status of complete machine current control blower and compressor.
In the step s 7, indoor temperature transmitter detects room temperature, and outdoor temperature sensor detects outdoor temperature, electric current
Detection module detects complete machine electric current, reads outdoor fan unloading setting electric current according to room temperature, outdoor temperature and compressor stops
Machine setting electric current, if complete machine electric current >=outdoor fan unloads setting electric current, control outdoor fan shuts down；If complete machine electric current >=
Compressor shutdown setting electric current controls compressor shutdown.
As shown in Fig. 2, the present embodiment also proposed a kind of overheating protection control system of air conditioner, including room temperature passes
Sensor, outdoor temperature sensor, indoor coil pipe sensor, current detection module and control module.It is described as follows:
Indoor temperature transmitter, for detecting room temperature and being sent to control module；
Outdoor temperature sensor, for detecting outdoor temperature and being sent to control module；
Indoor coil pipe sensor, for detecting indoor coil pipe and being sent to control module；
Current detection module, for detecting complete machine electric current and being sent to control module；
Control module, control module are stored with the corresponding complete machine electric current setting range of room temperature, outdoor temperature and interior
Coil temperature setting value, storage form is as shown above, and details are not described herein again.
Control module is used to read complete machine electric current setting range according to room temperature, outdoor temperature and indoor coil pipe is set
Definite value；Control module judge the complete machine electric current whether within complete machine electric current setting range, if so, and control module judge room
The difference of inner coil pipe temperature and indoor coil pipe setting value is greater than given threshold, then event occurs for indoor coil pipe sensor
Barrier, control module pass through the operating status of complete machine current control blower and compressor；If so, and control module judge indoor coil
The difference of temperature and indoor coil pipe setting value is less than or equal to given threshold, then there is no events for indoor coil pipe sensor
Barrier, air conditioner operate normally.If complete machine electric current is greater than the larger value of complete machine electric current setting range, air conditioner is dirty stifled, controls mould
Block controls air conditioner and shuts down；If complete machine electric current is less than the smaller value of complete machine electric current setting range, air conditioner is shut down, it is possible to be sent out
Raw leakage of refrigerant.
Control module is also stored with the corresponding outdoor fan unloading setting electric current of room temperature, outdoor temperature, control module
When judging complete machine electric current >=outdoor fan unloading setting electric current, control outdoor fan shuts down.
Control module is stored with the corresponding compressor shutdown setting electric current of room temperature, outdoor temperature, control module judgement
When complete machine electric current >=compressor shutdown setting electric current, compressor shutdown is controlled.
When control module judges the indoor coil pipe sensor failure, control module exports fault message；Control
When molding block judges that the air conditioner is dirty stifled, control module exports dirty stifled information；To prompt user to handle.
The overheating protection control system of the present embodiment air conditioner further includes wireless communication module, for exporting control module
Fault message and/or dirty stifled information be sent to other equipment, to prompt user to handle.
The present embodiment also proposed a kind of air conditioner, and air conditioner includes above-mentioned control system.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although referring to aforementioned reality
Applying example, invention is explained in detail, for those of ordinary skill in the art, still can be to aforementioned implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of control method for over-heating protection of air conditioner, which is characterized in that the method are as follows:
Indoor temperature transmitter detects room temperature, and outdoor temperature sensor detects outdoor temperature, and current detection module detection is whole
Electromechanics stream, indoor coil pipe sensor detect indoor coil pipe；
Complete machine electric current setting range and indoor coil pipe setting value are read according to room temperature, outdoor temperature；
Complete machine electric current is judged whether within complete machine electric current setting range, if so, and indoor coil pipe and indoor coil pipe
The absolute value of setting value difference is greater than given threshold, then indoor coil pipe sensor failure；It is set if complete machine electric current is greater than
Determine the larger value of range, then air conditioner is dirty stifled, and control air conditioner is shut down；
When coil temperature sensor breaks down indoors, pass through the operating status of complete machine current control blower and compressor；
Indoor temperature transmitter detects room temperature, and outdoor temperature sensor detects outdoor temperature, and current detection module detection is whole
Electromechanics stream reads outdoor fan according to room temperature, outdoor temperature and unloads setting electric current, if complete machine electric current >=outdoor fan unloading
Setting electric current controls the outdoor fan and shuts down；
Compressor shutdown setting electric current is read according to room temperature, outdoor temperature, if complete machine electric current >=compressor shutdown setting electricity
Stream, controls the compressor shutdown.
2. the control method for over-heating protection of air conditioner according to claim 1, which is characterized in that the indoor coil pipe
When sensor failure, the air conditioner issues fault cues；And/or；When the air conditioner is dirty stifled, the air conditioner is issued
Dirty stifled prompt.
3. a kind of overheating protection control system of air conditioner, which is characterized in that the system comprises:
Indoor temperature transmitter, for detecting room temperature and being sent to control module；
Outdoor temperature sensor, for detecting outdoor temperature and being sent to control module；
Indoor coil pipe sensor, for detecting indoor coil pipe and being sent to control module；
Current detection module, for detecting complete machine electric current and being sent to control module；
Control module, the control module are stored with the corresponding complete machine electric current setting range of room temperature, outdoor temperature and interior
Coil temperature setting value, the control module are used to read complete machine electric current setting range according to the room temperature, outdoor temperature
With indoor coil pipe setting value；The control module judge the complete machine electric current whether within complete machine electric current setting range,
If so, and control module judge that the difference of indoor coil pipe and indoor coil pipe setting value is greater than given threshold, then it is indoor
Coil temperature sensor breaks down, and control module passes through the operating status of complete machine current control blower and compressor；If complete machine
Electric current is greater than the larger value of setting range, then air conditioner is dirty stifled, and the control module control air conditioner is shut down；
The control module is stored with the corresponding outdoor fan unloading setting electric current of room temperature, outdoor temperature, the control mould
When block judges complete machine electric current >=outdoor fan unloading setting electric current, controls the outdoor fan and shut down；
The control module is stored with the corresponding compressor shutdown setting electric current of room temperature, outdoor temperature, the control module
When judging complete machine electric current >=compressor shutdown setting electric current, the compressor shutdown is controlled.
4. the overheating protection control system of air conditioner according to claim 3, which is characterized in that the control module judgement
When the indoor coil pipe sensor failure, the control module exports fault message；And/or；The control module
When judging that the air conditioner is dirty stifled, the control module exports dirty stifled information.
5. the overheating protection control system of air conditioner according to claim 4, which is characterized in that the system comprises wireless
Communication module, fault message and/or dirty stifled information for exporting the control module are sent to other equipment.
6. a kind of air conditioner, which is characterized in that the air conditioner includes control system described in claim 3-5 any one.
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| CN201710007442.2A CN106839282B (en) | 2017-01-05 | 2017-01-05 | A kind of air conditioner and its control method for over-heating protection and system |
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| CN201710007442.2A CN106839282B (en) | 2017-01-05 | 2017-01-05 | A kind of air conditioner and its control method for over-heating protection and system |
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| CN106839282B true CN106839282B (en) | 2019-10-01 |
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