CN104596036B - Anti-freeze control method and device - Google Patents
Anti-freeze control method and device Download PDFInfo
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- CN104596036B CN104596036B CN201510014018.1A CN201510014018A CN104596036B CN 104596036 B CN104596036 B CN 104596036B CN 201510014018 A CN201510014018 A CN 201510014018A CN 104596036 B CN104596036 B CN 104596036B
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of anti-freeze control method and device, and the anti-freeze control method includes coil temperature in detection indoor environment temperature and heat exchanger indoor unit；When the indoor environment temperature is in the first preset temperature range, and the rotating speed of indoor set DC fan is carried out raising processing by the coil temperature in the second preset temperature range from default initial wind speed.The frequent starting of compressor and stopping when this method can reduce anti-freeze control, and can effectively freeze, so as to ensure refrigeration and ensure outdoor compressor service life.
Description
Technical field
The present invention relates to technical field of household appliance manufacture, more particularly to a kind of anti-freeze control method and device.
Background technology
Generally, air conditioner is in refrigerating operaton, when coil temperature is anti-less than default in heat exchanger indoor unit
After the freeze protection shutdown temperature regular hour, then directly stop outdoor compressor operation, to be protected in itself to air conditioner
Shield.
But when indoor environment temperature is relatively low, the result also resulted in is that coil temperature is relatively low, default
Anti-freeze protection shutdown temperature it is immovable in the case of, directly result in air conditioner frequently anti-freeze protection shut down, frequently
Phenomenon corresponding to anti-freeze protection shutdown is outdoor compressor frequent starting and stopping, and this results in that normal refrigeration fortune can not be carried out
OK, due refrigeration is reached, meanwhile, outdoor compressor Fraquent start, stop, causing compressor oil successfully to carry out
Circulation, thus compressor service life can be shortened so that air conditioner service life also shortens therewith.
Traditional inverter air conditioner is minimum by the way that the running frequency of outdoor compressor is limited to when cryogenic refrigeration is run
Frequency and somewhat prevent the frozen phenomenon of indoor heat converter, but sacrifice refrigeration, it is impossible to really meet uncommon
The user that can also carry out refrigerating operaton in low temperature is hoped to require.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of anti-freeze control method, this method can reduce anti-freeze
The frequent starting of compressor and stopping during control, and can effectively freeze, so as to ensure refrigeration and ensure outdoor compression
Machine service life.
It is another object of the present invention to propose a kind of anti-freeze control device.
To reach above-mentioned purpose, anti-freeze control method that first aspect present invention embodiment proposes, including：Detection is indoor
Coil temperature in environment temperature and heat exchanger indoor unit；When the indoor environment temperature is in the first preset temperature range, and institute
Coil temperature is stated in the second preset temperature range, the rotating speed of indoor set DC fan is improved from default initial wind speed
Processing.
The anti-freeze control method that first aspect present invention embodiment proposes, by according to indoor environment temperature and coil pipe temperature
Degree, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed, disk can be improved by improving wind speed
Pipe temperature, therefore can reduce and cause anti-freeze stoppage protection because how low coil temperature is, compressor when reducing anti-freeze control
Frequent starting and stopping, and can effectively freeze, so as to ensure refrigeration and ensure outdoor compressor service life.
To reach above-mentioned purpose, anti-freeze control device that second aspect of the present invention embodiment proposes, including：Detect mould
Block, for detecting coil temperature in indoor environment temperature and heat exchanger indoor unit；First control module, for when the interior
Environment temperature is in the first preset temperature range, and the coil temperature is in the second preset temperature range, by indoor set direct current wind
The rotating speed of machine carries out raising processing from default initial wind speed.
The anti-freeze control device that second aspect of the present invention embodiment proposes, by according to indoor environment temperature and coil pipe temperature
Degree, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed, disk can be improved by improving wind speed
Pipe temperature, therefore can reduce and cause anti-freeze stoppage protection because how low coil temperature is, compressor when reducing anti-freeze control
Frequent starting and stopping, and can effectively freeze, so as to ensure refrigeration and ensure outdoor compressor service life.
The additional aspect of the present 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 the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet for the anti-freeze control method that one embodiment of the invention proposes；
Fig. 2 is the composition structural representation of air conditioner in the embodiment of the present invention；
Fig. 3 is the schematic flow sheet for the anti-freeze control method that another embodiment of the present invention proposes；
Fig. 4 is the structural representation for the anti-freeze control device that another embodiment of the present invention proposes；
Fig. 5 is the structural representation for the anti-freeze control device that another embodiment of the present invention proposes.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, this
All changes that the embodiment of invention includes falling into the range of the spirit and intension of attached claims, modification and equivalent
Thing.
Fig. 1 is the schematic flow sheet for the anti-freeze control method that one embodiment of the invention proposes, this method includes：
S11：Detect coil temperature in indoor environment temperature and heat exchanger indoor unit.
The present embodiment can be applied in the anti-freeze control flow of air conditioner, and referring to Fig. 2, air conditioner can include outdoor
Compressor 21, heat exchanger indoor unit 22, indoor set DC fan 23, wherein, coil pipe, room are provided with heat exchanger indoor unit
External compression machine 21 can specifically refer to frequency-changeable compressor.Air conditioner can also include：For detecting the interior of indoor environment temperature
Environment temperature sensor 24, and for detecting the coil temperature sensor 25 of coil temperature in heat exchanger indoor unit, and room
Interior machine control unit 26.
Specifically, indoor environment temperature can be detected by indoor environment temperature sensor 24, and, sensed by coil temperature
Device 25 detects coil temperature.
When indoor environment temperature sensor 24 detects indoor environment temperature, and, coil temperature sensor 25 detects
After coil temperature, the relevant temperature detected can be sent to indoor set control section 26.
S12：When the indoor environment temperature is in the first preset temperature range, and the coil temperature is in the second preset temperature
During scope, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed.
Wherein, after indoor set control unit 26 receives indoor environment temperature and coil temperature, it may be determined that indoor environment
Temperature range where temperature and coil temperature.
Optionally, first preset temperature range is：T1 is less than TN, and second preset temperature range is：T2 is more than
Or equal to TM, and T2 is less than T21, wherein, T1 is indoor environment temperature, and T2 is coil temperature, and TN is default indoor environment temperature
Threshold value is spent, T21 is default anti-freeze protection frequency reducing temperature, and TM is default anti-freeze protection shutdown temperature.
It is understood that in numerical division, the end points equal to place can be located at the either end of scope, for example, the
Two preset temperature ranges also include：T2 is more than TM, and T2 is less than or equal to T21 situation.
Accordingly, when indoor set control unit 26 is determined：T1 is less than TN, and, T2 is more than or equal to TM, and T2 is less than
T21, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed.
Optionally, the rotating speed by indoor set DC fan carries out raising processing from default initial wind speed, including：
Value added is determined according to the indoor environment temperature, wherein, the size of the value added and the indoor environment temperature
Degree is inversely；
The rotating speed of indoor set DC fan is improved into the value added.
Specifically, the corresponding relation between indoor environment temperature and value added can be pre-established, for example, working as indoor environment
When temperature belongs to the first scope, corresponding first value added, then can according to the corresponding relation, it is determined that with current indoor environment temperature
Value added corresponding to degree, value is accordingly increased so as to which the rotating speed of indoor set DC fan be improved.
For example, indoor set control unit 26 determines value added according to the corresponding relation being pre-configured with, backward indoor set
DC fan 23 sends control instruction, carries wind speed comprising increase value information, instruction indoor set DC fan 23 in control instruction
Height accordingly increases value.
In the present embodiment, by according to indoor environment temperature and coil temperature, by the rotating speed of indoor set DC fan from pre-
If initial wind speed carry out raising processing, coil temperature can be improved by improving wind speed, therefore can reduce because of coil temperature
It is more low to cause anti-freeze stoppage protection, the frequent starting of compressor and stopping when reducing anti-freeze control, and can effectively make
It is cold, so as to ensure refrigeration and ensure outdoor compressor service life.
Fig. 3 is the schematic flow sheet for the anti-freeze control method that another embodiment of the present invention proposes, this method includes：
S31：Detect coil temperature in indoor environment temperature and heat exchanger indoor unit.
Wherein, indoor environment temperature is represented with T1, and coil temperature is represented with T2.
As above shown in an embodiment, corresponding temperature can be detected by sensor.
S32：Judge whether T1 is less than TN, if so, performing S34, otherwise, perform S33.
Wherein, TN is default indoor environment temperature threshold value.
S33：Carry out traditional temperature control flow.
For example, handled according to existing flow.
And the indoor set low temperature anti-freeze defencive function of proposition of the embodiment of the present invention is carried out when T1 is less than TN.
S34：Judge whether T2 is more than or equal to T21, if so, performing S35, otherwise, perform S36.
T21 is default anti-freeze protection frequency reducing temperature.
S35：The indoor set DC fan is controlled to be operated according to default initial wind speed.
For example, default initial wind speed is high wind, then indoor set control unit can control indoor set DC fan according to
High wind is operated.
S36：Judge whether T2 is more than or equal to TM, and be less than T21, if so, performing S37, otherwise, perform S38.
TM is default anti-freeze protection shutdown temperature.
S37：The rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed.
For example, default initial wind speed is high wind, then indoor set control unit can control indoor set DC fan according to
Operated than the current higher wind speed of high wind.
Specifically, the raising value of wind speed can be inversely proportional with current indoor environment temperature, for example, indoor environment temperature is got over
Low, raising value is bigger.
Specifically, the corresponding relation between indoor environment temperature and value added can be pre-established, for example, working as indoor environment
When temperature belongs to the first scope, corresponding first value added, then can according to the corresponding relation, it is determined that with current indoor environment temperature
Value added corresponding to degree, value is accordingly increased so as to which the rotating speed of indoor set DC fan be improved.
For example, indoor set control unit 26 determines value added according to the corresponding relation being pre-configured with, backward indoor set
DC fan 23 sends control instruction, carries wind speed comprising increase value information, instruction indoor set DC fan 23 in control instruction
Height accordingly increases value.
S38：After preset time, carry out the protection of indoor set anti-freeze and shut down.
For example, when T2 is less than TM, and operation of air-conditioner is after default time t, the control room of indoor set control unit 26
External compression machine 21 is shut down.
In the present embodiment, by according to indoor environment temperature and coil temperature, by the rotating speed of indoor set DC fan from pre-
If initial wind speed carry out raising processing, coil temperature can be improved by improving wind speed, therefore can reduce because of coil temperature
It is more low to cause anti-freeze stoppage protection, the frequent starting of compressor and stopping when reducing anti-freeze control, and can effectively make
It is cold, so as to ensure refrigeration and ensure outdoor compressor service life.In addition, the present embodiment passes through in different temperature ranges
Different flows is performed, corresponding protection processing can be carried out according to being actually needed, improve efficiency.
Fig. 4 is the structural representation for the anti-freeze control device that another embodiment of the present invention proposes, the device 40 includes inspection
Survey the control module 42 of module 41 and first.
Detection module 41 is used to detect coil temperature in indoor environment temperature and heat exchanger indoor unit；
The device can be used in air conditioner.
Referring to Fig. 2, air conditioner can include outdoor compressor 21, heat exchanger indoor unit 22, indoor set DC fan 23,
Wherein, coil pipe is provided with heat exchanger indoor unit, outdoor compressor 21 can specifically refer to frequency-changeable compressor.Air conditioner may be used also
With including：For detecting the indoor environment temperature sensor 24 of indoor environment temperature, and for detecting in heat exchanger indoor unit
The coil temperature sensor 25 of coil temperature, and indoor set control unit 26.
Specifically, the detection module 41 can include indoor environment temperature sensor 24 and coil temperature sensor 25, can
To detect indoor environment temperature by indoor environment temperature sensor 24, and, coil temperature is detected by coil temperature sensor 25.
When indoor environment temperature sensor 24 detects indoor environment temperature, and, coil temperature sensor 25 detects
After coil temperature, the relevant temperature detected can be sent to indoor set control section 26.
First control module 42 is used for when the indoor environment temperature is in the first preset temperature range, and the coil temperature
In the second preset temperature range, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed.
First control module 42 can specifically refer to the indoor set control unit 26 in Fig. 2.
After indoor set control unit 26 receives indoor environment temperature and coil temperature, it may be determined that indoor environment temperature and
Temperature range where coil temperature.
Optionally, first preset temperature range is：T1 is less than TN, and second preset temperature range is：T2 is more than
Or equal to TM, and T2 is less than T21, wherein, T1 is indoor environment temperature, and T2 is coil temperature, and TN is default indoor environment temperature
Threshold value is spent, T21 is default anti-freeze protection frequency reducing temperature, and TM is default anti-freeze protection shutdown temperature.
It is understood that in numerical division, the end points equal to place can be located at the either end of scope, for example, the
Two preset temperature ranges also include：T2 is more than TM, and T2 is less than or equal to T21 situation.
Accordingly, when indoor set control unit 26 is determined：T1 is less than TN, and, T2 is more than or equal to TM, and T2 is less than
T21, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed.
Optionally, first control module 42 is specifically used for：
Value added is determined according to the indoor environment temperature, wherein, the size of the value added and the indoor environment temperature
Degree is inversely；
The rotating speed of indoor set DC fan is improved into the value added.
Specifically, the corresponding relation between indoor environment temperature and value added can be pre-established, for example, working as indoor environment
When temperature belongs to the first scope, corresponding first value added, then can according to the corresponding relation, it is determined that with current indoor environment temperature
Value added corresponding to degree, value is accordingly increased so as to which the rotating speed of indoor set DC fan be improved.
For example, indoor set control unit 26 determines value added according to the corresponding relation being pre-configured with, backward indoor set
DC fan 23 sends control instruction, carries wind speed comprising increase value information, instruction indoor set DC fan 23 in control instruction
Height accordingly increases value.
In another embodiment, referring to Fig. 5, the device 40 also includes：
Second control module 43, for when the coil temperature is more than or equal to the T21, controlling the indoor set straight
Flow fan is according to the default initial wind speed operating.
For example, default initial wind speed is high wind, then indoor set control unit can control indoor set DC fan according to
High wind is operated.
In another embodiment, referring to Fig. 5, the device 40 also includes：
3rd control module 44, for being less than the TM when the coil temperature, and after preset time, carry out indoor
The protection of machine anti-freeze is shut down.
For example, when T2 is less than TM, and operation of air-conditioner is after default time t, the control room of indoor set control unit 26
External compression machine 21 is shut down.
In the present embodiment, by according to indoor environment temperature and coil temperature, by the rotating speed of indoor set DC fan from pre-
If initial wind speed carry out raising processing, coil temperature can be improved by improving wind speed, therefore can reduce because of coil temperature
It is more low to cause anti-freeze stoppage protection, the frequent starting of compressor and stopping when reducing anti-freeze control, and can effectively make
It is cold, so as to ensure refrigeration and ensure outdoor compressor service life.
It should be noted that in the description of the invention, term " first ", " second " etc. are only used for describing purpose, without
It is understood that to indicate or implying relative importance.In addition, in the description of the invention, unless otherwise indicated, the implication of " multiple "
It is two or more.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (6)
- A kind of 1. anti-freeze control method, it is characterised in that including：Detect coil temperature in indoor environment temperature and heat exchanger indoor unit；When the indoor environment temperature is in the first preset temperature range, and the coil temperature is in the second preset temperature range, The rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed；First preset temperature range is：T1 is less than TN, and second preset temperature range is：T2 is more than or equal to TM, and T2 is less than T21, wherein, T1 is indoor environment temperature, and T2 is coil temperature, and TN is default indoor environment temperature threshold value, and T21 is Default anti-freeze protects frequency reducing temperature, and TM is default anti-freeze protection shutdown temperature；Wherein, the rotating speed by indoor set DC fan carries out raising processing from default initial wind speed, including：Value added is determined according to the indoor environment temperature, wherein, the size of the value added and the indoor environment temperature into Inverse relation；The rotating speed of indoor set DC fan is improved into the value added.
- 2. according to the method for claim 1, it is characterised in that the detection indoor environment temperature and heat exchanger indoor unit After middle coil temperature, methods described also includes：When the coil temperature is more than or equal to the T21, the indoor set DC fan is controlled according to described default first Beginning wind speed operates.
- 3. according to the method for claim 1, it is characterised in that the detection indoor environment temperature and heat exchanger indoor unit After middle coil temperature, methods described also includes：When the coil temperature is less than the TM, and after preset time, carries out the protection of indoor set anti-freeze and shut down.
- A kind of 4. anti-freeze control device, it is characterised in that including：Detection module, for detecting coil temperature in indoor environment temperature and heat exchanger indoor unit；First control module, for when the indoor environment temperature is in the first preset temperature range, and the coil temperature is During two preset temperature ranges, the rotating speed of indoor set DC fan is subjected to raising processing from default initial wind speed；First preset temperature range is：T1 is less than TN, and second preset temperature range is：T2 is more than or equal to TM, and T2 is less than T21, wherein, T1 is indoor environment temperature, and T2 is coil temperature, and TN is default indoor environment temperature threshold value, and T21 is Default anti-freeze protects frequency reducing temperature, and TM is default anti-freeze protection shutdown temperature；Wherein, first control module is specifically used for：Value added is determined according to the indoor environment temperature, wherein, the size of the value added and the indoor environment temperature into Inverse relation；The rotating speed of indoor set DC fan is improved into the value added.
- 5. device according to claim 4, it is characterised in that also include：Second control module, for when the coil temperature is more than or equal to the T21, controlling the indoor set DC fan According to the default initial wind speed operating.
- 6. device according to claim 4, it is characterised in that also include：3rd control module, for being less than the TM when the coil temperature, and after preset time, it is antifreeze to carry out indoor set Knot protection is shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014018.1A CN104596036B (en) | 2015-01-12 | 2015-01-12 | Anti-freeze control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014018.1A CN104596036B (en) | 2015-01-12 | 2015-01-12 | Anti-freeze control method and device |
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| CN104596036A CN104596036A (en) | 2015-05-06 |
| CN104596036B true CN104596036B (en) | 2017-12-12 |
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| CN201510014018.1A Active CN104596036B (en) | 2015-01-12 | 2015-01-12 | Anti-freeze control method and device |
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