CN105258304B - Cryogenic refrigeration control method, low-temperature refrigeration control device and air conditioner - Google Patents
Cryogenic refrigeration control method, low-temperature refrigeration control device and air conditioner Download PDFInfo
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- CN105258304B CN105258304B CN201510822269.2A CN201510822269A CN105258304B CN 105258304 B CN105258304 B CN 105258304B CN 201510822269 A CN201510822269 A CN 201510822269A CN 105258304 B CN105258304 B CN 105258304B
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
-
- 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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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of cryogenic refrigeration control method, a kind of low-temperature refrigeration control device and a kind of air conditioner, wherein, cryogenic refrigeration control method includes：Under cryogenic refrigeration pattern, the outdoor condensator outlet temperature of the air conditioner is detected by temperature sensor；Whether the outdoor condensator outlet temperature for judging to detect is less than or equal to predetermined outlet temperature；According to judged result, the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device.Pass through technical scheme, weaken the heat exchange of outdoor condenser and external environment, outdoor refrigerant pressure is maintained to be in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment is added, improves Consumer's Experience.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of cryogenic refrigeration control method, a kind of low temperature system
Cold control device and a kind of air conditioner.
Background technology
With the development of China's economy and science and technology, the material life of people has obtained very big improvement, especially to environment
The requirement of comfort level and cleanliness factor is gradually lifted, and under conditions of ambient temperature is relatively low, many occasions still need air-conditioning
Refrigeration mode is run to keep the temperature and humidity in room in zone of reasonableness, such as exclusive restaurant, data center module.
When running refrigeration mode, ambient temperature often controls at 25 DEG C to 35 DEG C conventional air conditioner, and works as environment
When temperature is less than -10 DEG C, if air conditioner needs to run refrigeration mode, the load of air conditioner will be relatively small, outdoor unit cold
Condenser good effect of heat exchange.But at the same time, condensation temperature and condensing pressure are smaller, and this results in laggard in adiabatic throttling process
The refrigerant for entering indoor evaporator is in relatively low evaporating pressure and evaporating temperature, and evaporating temperature is too low to cause indoor set knot
Frost, the refrigeration of air-conditioning system is had a strong impact on, in addition, evaporating temperature is too low also make it that compressor return air temperature is relatively low, easily
Liquid hammer is formed, the operation of air-conditioning system is in an unsure state.
Therefore, when how to avoid cryogenic refrigeration because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, into
For current urgent problem to be solved.
The content of the invention
The present invention is based on above mentioned problem, it is proposed that a kind of new technical scheme, because of outdoor system when avoiding cryogenic refrigeration
Refrigerant pressure it is too low and caused by frosting, liquid hammer the problems such as.
Therefore, it is an object of the present invention to propose a kind of cryogenic refrigeration control method.
It is another object of the present invention to propose a kind of low-temperature refrigeration control device.
Another object of the present invention is to propose a kind of air conditioner have above-mentioned low-temperature refrigeration control device.
To achieve the above object, the embodiment of the first aspect of the present invention proposes a kind of cryogenic refrigeration control method, uses
In air conditioner, including：Under cryogenic refrigeration pattern, the outdoor condensator outlet temperature of the air conditioner is detected by temperature sensor
Degree；Whether the outdoor condensator outlet temperature for judging to detect is less than or equal to predetermined outlet temperature；According to judged result,
The peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device.
The cryogenic refrigeration control method of embodiments of the invention, under cryogenic refrigeration pattern, because outdoor temperature is too low, room
The heat transfer effect of external condenser is preferable, and it is relatively low to result in outdoor condensator outlet temperature, brings and is produced because refrigerant pressure is too low
The problems such as raw frosting, liquid hammer.Therefore, under cryogenic refrigeration pattern, outdoor condensation can be monitored in real time by temperature sensor
Device outlet temperature, so as to when outdoor condensator outlet temperature be less than predetermined outlet temperature, increase peripheral hardware and becalm device covered chamber
The area of external condenser, reduce outdoor condenser and the heat exchange area of external environment condition, so as to reduce changing for outdoor condenser
Thermal effect, refrigerant pressure is maintained to be in zone of reasonableness, wherein, the masked area is smaller, the outdoor condenser and outside
The heat exchange area of environment is bigger.By the technical scheme, the heat exchange of outdoor condenser and external environment is weakened, maintains outdoor system
Refrigerant pressure is in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add
Safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, in the outdoor condensator outlet that air conditioner is detected by temperature sensor
Before temperature, in addition to：Current environmental temperature is detected by environment temperature sensor；Determine whether the current environmental temperature is small
In or equal to specific environment temperature；When it is determined that the current environmental temperature is less than or equal to the specific environment temperature, enter
The cryogenic refrigeration pattern.
The cryogenic refrigeration control method of embodiments of the invention, can judge current environmental temperature in advance, work as
When preceding environment temperature is less than or equal to specific environment temperature, judges that current environmental temperature is too low, cryogenic refrigeration pattern can be opened, with
Avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add air-conditioning system in low temperature outdoor environment
At a temperature of safety in operation.
According to one embodiment of present invention, in the outdoor condensator outlet that air conditioner is detected by temperature sensor
Before temperature, in addition to：According to the first setting command received, the specific environment temperature and the predetermined outlet temperature are set
Degree.
The cryogenic refrigeration control method of embodiments of the invention, user be able to can pre-set predetermined according to being actually needed
Environment temperature and predetermined outlet temperature, so as to improve the flexibility being controlled to air conditioner and practicality.
According to one embodiment of present invention, it is described according to judged result, adjust the outdoor condenser of the air conditioner
Peripheral hardware is becalmed the masked area of device, including：When the judged result is to be, motor of becalming is controlled to drive the peripheral hardware
Device of becalming moves along the outdoor condenser, make the outdoor condenser by the peripheral hardware becalm device covering shielded area
Increase, so that the outdoor condenser and the heat exchange area of the external environment condition reduce；It is uncomfortable when the judged result is no
The whole shielded area.
The cryogenic refrigeration control method of embodiments of the invention, can be becalmed device edge by motor driving peripheral hardware of becalming
The outdoor condenser moves, so as to increase or reduce shielded area, to change changing for outdoor condenser and external environment
Hot area.For example peripheral hardware device of becalming can be cloth of becalming, the cloth that will becalm rotates placement in connecting rod, covers on outdoor heat exchange
On the outside of device, micromachine and gear are provided with connecting rod, so, is rotated by micromachine drive gear, you can control hides
Wind cloth moves up and down in outdoor heat exchanger outer surface, increases or reduce shielded area.By the technical scheme, do not changing air-conditioning
On the basis of device original structure, by outdoor condenser air outlet temperature peripheral hardware can be controlled to becalm the lifting of device, so as to
Outdoor condenser and the heat exchange area of external environment, the heat transfer effect of control room external condenser, so as to tie up can easily be changed
Hold outdoor refrigerant pressure and be in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer etc. ask
Topic, adds safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, the peripheral hardware is driven to becalm device along institute in control motor of becalming
Before stating outdoor condenser movement, in addition to：According to the second setting command received, at least one outlet temperature scope is set
With each outlet temperature scope at least one outlet temperature scope corresponding to becalm device displacement；It is and described
Control motor of becalming drives peripheral hardware device of becalming to be moved along the outdoor condenser, specifically includes：It is described at least
The target outlet temperature scope belonging to the outdoor condensator outlet temperature is determined in one outlet temperature range；Control the screening
Wind motor drives peripheral hardware device of becalming to move the device movement of becalming corresponding to the target outlet temperature scope
Distance.
The cryogenic refrigeration control method of embodiments of the invention, can specifically it be controlled according to outdoor condensator outlet temperature range
Peripheral hardware processed is becalmed the displacement of device, specifically, can pre-set outlet temperature scope, and set outlet temperature scope
Corresponding device displacement of becalming, wherein, outdoor condensator outlet temperature it is lower, it is necessary to becalm device displacement more
Greatly, the weakening to the heat transfer effect of outdoor condenser is more obvious, so as to lift refrigerant pressure as much as possible, avoids because of outdoor
Refrigerant pressure it is too low and caused by frosting, liquid hammer the problems such as, add fortune of the air-conditioning system at a temperature of low temperature outdoor environment
Row security, improves Consumer's Experience.
The embodiment of the second aspect of the present invention proposes a kind of low-temperature refrigeration control device, for air conditioner, including：Go out
Mouth temperature detecting unit, under cryogenic refrigeration pattern, the outdoor condensator outlet of the air conditioner is detected by temperature sensor
Temperature；Whether judging unit, the outdoor condensator outlet temperature for judging to detect are less than or equal to predetermined outlet temperature；Hold
Row unit, according to judged result, the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device, wherein,
The masked area is smaller, and the heat exchange area of the outdoor condenser and external environment condition is bigger.
The low-temperature refrigeration control device of embodiments of the invention, under cryogenic refrigeration pattern, because outdoor temperature is too low, room
The heat transfer effect of external condenser is preferable, and it is relatively low to result in outdoor condensator outlet temperature, brings and is produced because refrigerant pressure is too low
The problems such as raw frosting, liquid hammer.Therefore, under cryogenic refrigeration pattern, outdoor condensation can be monitored in real time by temperature sensor
Device outlet temperature, so as to when outdoor condensator outlet temperature be less than predetermined outlet temperature, increase peripheral hardware and becalm device covered chamber
The area of external condenser, reduce outdoor condenser and the heat exchange area of external environment condition, so as to reduce changing for outdoor condenser
Thermal effect, refrigerant pressure is maintained to be in zone of reasonableness, wherein, the masked area is smaller, the outdoor condenser and outside
The heat exchange area of environment is bigger.By the technical scheme, the heat exchange of outdoor condenser and external environment is weakened, maintains outdoor system
Refrigerant pressure is in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add
Safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, in addition to：Environment temperature detection unit, examined described by temperature sensor
Survey before the outdoor condensator outlet temperature of air conditioner, current environmental temperature is detected by environment temperature sensor；First determines
Unit, determines whether the current environmental temperature is less than or equal to specific environment temperature, wherein, when it is determined that the current environment temperature
When degree is less than or equal to the specific environment temperature, into the cryogenic refrigeration pattern.
The low-temperature refrigeration control device of embodiments of the invention, current environmental temperature can be judged in advance, worked as
When preceding environment temperature is less than or equal to specific environment temperature, judges that current environmental temperature is too low, cryogenic refrigeration pattern can be opened, with
Avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add air-conditioning system in low temperature outdoor environment
At a temperature of safety in operation.
According to one embodiment of present invention, in addition to：First setting unit, sky is detected by temperature sensor described
Before the outdoor condensator outlet temperature for adjusting device, according to the first setting command received, set the specific environment temperature and
The predetermined outlet temperature.
The low-temperature refrigeration control device of embodiments of the invention, user be able to can pre-set predetermined according to being actually needed
Environment temperature and predetermined outlet temperature, so as to improve the flexibility being controlled to air conditioner and practicality.
According to one embodiment of present invention, the execution unit includes：Becalm device driver element, judge knot when described
For fruit for when being, control motor of becalming drives peripheral hardware device of becalming to be moved along the outdoor condenser, makes the outdoor
Condenser is increased by the becalm shielded area of device covering of the peripheral hardware, so that the outdoor condenser and the external environment condition
Heat exchange area reduces；Second determining unit, when the judged result is no, the shielded area is not adjusted.
The low-temperature refrigeration control device of embodiments of the invention, can be becalmed device edge by motor driving peripheral hardware of becalming
The outdoor condenser moves, so as to increase or reduce shielded area, to change changing for outdoor condenser and external environment
Hot area.For example peripheral hardware device of becalming can be cloth of becalming, the cloth that will becalm rotates placement in connecting rod, covers on outdoor heat exchange
On the outside of device, micromachine and gear are provided with connecting rod, so, is rotated by micromachine drive gear, you can control hides
Wind cloth moves up and down in outdoor heat exchanger outer surface, increases or reduce shielded area.By the technical scheme, do not changing air-conditioning
On the basis of device original structure, by outdoor condenser air outlet temperature peripheral hardware can be controlled to becalm the lifting of device, so as to
Outdoor condenser and the heat exchange area of external environment, the heat transfer effect of control room external condenser, so as to tie up can easily be changed
Hold outdoor refrigerant pressure and be in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer etc. ask
Topic, adds safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, in addition to：Second setting unit, motor driving of becalming is controlled described
The peripheral hardware is becalmed before device moves along the outdoor condenser, according to the second setting command received, sets at least one
Device of being becalmed corresponding to each outlet temperature scope in individual outlet temperature scope and at least one outlet temperature scope moves
Dynamic distance；And the device driver element of becalming is specifically used for：Described in being determined at least one outlet temperature scope
Target outlet temperature scope belonging to outdoor condensator outlet temperature, and motor of being becalmed described in control drives the peripheral hardware to hide
Wind apparatus moves the device displacement of becalming corresponding to the target outlet temperature scope.
The low-temperature refrigeration control device of embodiments of the invention, can specifically it be controlled according to outdoor condensator outlet temperature range
Peripheral hardware processed is becalmed the displacement of device, specifically, can pre-set outlet temperature scope, and set outlet temperature scope
Corresponding device displacement of becalming, wherein, outdoor condensator outlet temperature it is lower, it is necessary to becalm device displacement more
Greatly, the weakening to the heat transfer effect of outdoor condenser is more obvious, so as to lift refrigerant pressure as much as possible, avoids because of outdoor
Refrigerant pressure it is too low and caused by frosting, liquid hammer the problems such as, add fortune of the air-conditioning system at a temperature of low temperature outdoor environment
Row security, improves Consumer's Experience.
The embodiment of the third aspect of the present invention proposes a kind of air conditioner, including the low temperature described in any of the above-described embodiment
Refrigeration control device.Therefore, the low-temperature refrigeration control device phase that the air conditioner has and second aspect of the present invention embodiment provides
Same technique effect, will not be repeated here.
The additional aspect and advantage of the present invention 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
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the flow chart of cryogenic refrigeration control method according to an embodiment of the invention；
Fig. 2A shows the flow chart of cryogenic refrigeration control method according to another embodiment of the invention；
Fig. 2 B and Fig. 2 C show the structural representation of the low-temperature refrigeration control device used in Fig. 2A；
Fig. 3 shows the block diagram of low-temperature refrigeration control device according to an embodiment of the invention；
Fig. 4 shows the block diagram of air conditioner according to an embodiment of the invention.
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 the present invention is further described in detail.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 to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the flow chart of cryogenic refrigeration control method according to an embodiment of the invention.
As shown in figure 1, cryogenic refrigeration control method according to an embodiment of the invention, including：
Step 102, under cryogenic refrigeration pattern, the outdoor condensator outlet of the air conditioner is detected by temperature sensor
Temperature.
Step 104, whether the outdoor condensator outlet temperature for judging to detect is less than or equal to predetermined outlet temperature.
Step 106, according to judged result, the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the cover-up surface of device
Product.
The cryogenic refrigeration control method of embodiments of the invention, under cryogenic refrigeration pattern, because outdoor temperature is too low, room
The heat transfer effect of external condenser is preferable, and it is relatively low to result in outdoor condensator outlet temperature, brings and is produced because refrigerant pressure is too low
The problems such as raw frosting, liquid hammer.Therefore, under cryogenic refrigeration pattern, outdoor condensation can be monitored in real time by temperature sensor
Device outlet temperature, so as to when outdoor condensator outlet temperature be less than predetermined outlet temperature, increase peripheral hardware and becalm device covered chamber
The area of external condenser, reduce outdoor condenser and the heat exchange area of external environment condition, so as to reduce changing for outdoor condenser
Thermal effect, refrigerant pressure is maintained to be in zone of reasonableness, wherein, the masked area is smaller, the outdoor condenser and outside
The heat exchange area of environment is bigger.By the technical scheme, the heat exchange of outdoor condenser and external environment is weakened, maintains outdoor system
Refrigerant pressure is in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add
Safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, before step 102, in addition to：Worked as by environment temperature sensor detection
Preceding environment temperature；Determine whether the current environmental temperature is less than or equal to specific environment temperature；When it is determined that the current environment
When temperature is less than or equal to the specific environment temperature, into the cryogenic refrigeration pattern.
The cryogenic refrigeration control method of embodiments of the invention, can judge current environmental temperature in advance, work as
When preceding environment temperature is less than or equal to specific environment temperature, judges that current environmental temperature is too low, cryogenic refrigeration pattern can be opened, with
Avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add air-conditioning system in low temperature outdoor environment
At a temperature of safety in operation.
According to one embodiment of present invention, before step 102, in addition to：According to the first setting command received,
The specific environment temperature and the predetermined outlet temperature are set.
The cryogenic refrigeration control method of embodiments of the invention, user be able to can pre-set predetermined according to being actually needed
Environment temperature and predetermined outlet temperature, so as to improve the flexibility being controlled to air conditioner and practicality.
According to one embodiment of present invention, step 106 includes：When the judged result is to be, driving of becalming is controlled
Motor drives peripheral hardware device of becalming to be moved along the outdoor condenser, the outdoor condenser is becalmed dress by the peripheral hardware
The shielded area increase of covering is put, so that the outdoor condenser and the heat exchange area of the external environment condition reduce；Sentence when described
When disconnected result is no, the shielded area is not adjusted.
The cryogenic refrigeration control method of embodiments of the invention, can be becalmed device edge by motor driving peripheral hardware of becalming
The outdoor condenser moves, so as to increase or reduce shielded area, to change changing for outdoor condenser and external environment
Hot area.For example peripheral hardware device of becalming can be cloth of becalming, the cloth that will becalm rotates placement in connecting rod, covers on outdoor heat exchange
On the outside of device, micromachine and gear are provided with connecting rod, so, is rotated by micromachine drive gear, you can control hides
Wind cloth moves up and down in outdoor heat exchanger outer surface, increases or reduce shielded area.By the technical scheme, do not changing air-conditioning
On the basis of device original structure, by outdoor condenser air outlet temperature peripheral hardware can be controlled to becalm the lifting of device, so as to
Outdoor condenser and the heat exchange area of external environment, the heat transfer effect of control room external condenser, so as to tie up can easily be changed
Hold outdoor refrigerant pressure and be in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer etc. ask
Topic, adds safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, the peripheral hardware is driven to becalm device along institute in control motor of becalming
Before stating outdoor condenser movement, in addition to：According to the second setting command received, at least one outlet temperature scope is set
With each outlet temperature scope at least one outlet temperature scope corresponding to becalm device displacement；It is and described
Control motor of becalming drives peripheral hardware device of becalming to be moved along the outdoor condenser, specifically includes：It is described at least
The target outlet temperature scope belonging to the outdoor condensator outlet temperature is determined in one outlet temperature range；Control the screening
Wind motor drives peripheral hardware device of becalming to move the device movement of becalming corresponding to the target outlet temperature scope
Distance.
The cryogenic refrigeration control method of embodiments of the invention, can specifically it be controlled according to outdoor condensator outlet temperature range
Peripheral hardware processed is becalmed the displacement of device, specifically, can pre-set outlet temperature scope, and set outlet temperature scope
Corresponding device displacement of becalming, wherein, outdoor condensator outlet temperature it is lower, it is necessary to becalm device displacement more
Greatly, the weakening to the heat transfer effect of outdoor condenser is more obvious, so as to lift refrigerant pressure as much as possible, avoids because of outdoor
Refrigerant pressure it is too low and caused by frosting, liquid hammer the problems such as, add fortune of the air-conditioning system at a temperature of low temperature outdoor environment
Row security, improves Consumer's Experience.
Fig. 2A shows the flow chart of cryogenic refrigeration control method according to another embodiment of the invention.
As shown in Figure 2 A, cryogenic refrigeration control method according to another embodiment of the invention, including：
Step 202, condensator outlet temperature T3 is detected.
Step 204, judge whether condensator outlet temperature T3 is less than setting value, when judged result is to be, into step
206, otherwise, return to step 202, continue to monitor T3.
Step 206, becalm micromachine in cylinder of control rotates, and the cloth that makes to becalm prevents outdoor condenser and external environment
Heat exchange.
Fig. 2 B and Fig. 2 C show the structural representation of the low-temperature refrigeration control device used in Fig. 2A.
As shown in fig. 2 b and fig. 2 c, the low-temperature refrigeration control device used in Fig. 2A includes：Sleeve 1, cloth 2 of becalming, outdoor
Condenser 3, gear 4, micromachine 5, connecting rod 6, wherein, connecting rod 6 is arranged on the center of sleeve 1, micromachine 5 and gear
4 are arranged in connecting rod 6, and gear 4 is connected with the both ends of cloth 2 of becalming to drive cloth 2 of becalming to move up and down.
In cryogenic refrigeration pattern, control module sensing chamber external condenser outlet temperature T3, and judge whether T3 is less than and set
Definite value, when T3 is less than setting value, signal can be passed to electric controller, electric controller control micromachine 5, which rotates clockwise, makes screening
Wind cloth 2 is fallen, to prevent the heat exchange of outdoor condenser 3 and external environment.
Specifically, the exhaust come out from compressor enters outdoor condenser 3, miniature when detecting that T3 is less than setting value
Motor 5 turns clockwise, and band moving gear 4 rotates, and under the effect of gear 4, cloth 2 of becalming moves down along the gap on sleeve 1,
The outdoor front and rear sides of condenser 3 are covered, reduce the heat exchange of the refrigerant and extraneous low temperature environment in outdoor condenser 3, weakening is changed
Thermal effect, so as to maintaining condensing pressure in rational scope, avoid after refrigerant throttling that pressure and temperature is too low to be brought
The problems such as indoor set frosting, compressor liquid hammer, ensure that air-conditioning system stablizes output cold at low ambient temperatures, maintain room temperature
With humidity in OK range, ensure the comfortableness of space air.In addition, when detecting that T3 is higher than setting value, micro electric is controlled
The rotate counterclockwise of machine 5, so as to rise with the cloth 2 that makes to becalm of moving gear 4, withdraw in sleeve 1.The apparatus structure is simple, and cost is low, energy
Optimize refrigeration performance of the air-conditioning system under low temperature outdoor environment well.
In any of the above-described technical scheme, it is preferable that connecting rod 6 is arranged in sleeve 1, and cloth 2 of becalming revolves in connecting rod 6
Relay and put, micromachine 5 and gear 4 are arranged in connecting rod 6.
In any of the above-described technical scheme, it is preferable that cloth 2 of becalming is placed in sleeve 1, is provided with gap on sleeve 1, is made screening
Wind cloth 2 can fall or withdraw sleeve 1 out of sleeve 1.
In any of the above-described technical scheme, it is preferable that control micro electric by sensing chamber external condenser outlet temperature T3
The unlatching of machine 5.
In any of the above-described technical scheme, it is preferable that gear 4 is connected with the both ends for cloth 2 of becalming, so as to drive cloth of becalming
Move up and down.
In any of the above-described technical scheme, it is preferable that the outdoor front and rear sides of condenser 3 are respectively provided with sleeve 1 and effectively prevented
The outdoor inner refrigerant of condenser 3 exchanges heat with external environment, and front side sleeve 1 is disposed in the outdoor the space between condenser 3 and blower fan.
Fig. 3 shows the block diagram of low-temperature refrigeration control device according to an embodiment of the invention.
As shown in figure 3, low-temperature refrigeration control device 300 according to an embodiment of the invention, including outlet temperature inspection
Unit 302, judging unit 304 and execution unit 306 are surveyed, wherein, outlet temperature detection unit 302 is used in cryogenic refrigeration pattern
The outdoor condensator outlet temperature of air conditioner is detected by temperature sensor down；Judging unit 304 is used to judge the room detected
Whether external condenser outlet temperature is less than or equal to predetermined outlet temperature；Execution unit 306 is used to, according to judged result, adjust institute
The peripheral hardware for stating the outdoor condenser of air conditioner is becalmed the masked area of device.
The low-temperature refrigeration control device 300 of embodiments of the invention, under cryogenic refrigeration pattern, because outdoor temp is spent
Low, the heat transfer effect of outdoor condenser is preferable, and it is relatively low to result in outdoor condensator outlet temperature, brings because refrigerant pressure is too low
And the problems such as caused frosting, liquid hammer.Therefore, under cryogenic refrigeration pattern, outdoor can be monitored in real time by temperature sensor
Condensator outlet temperature, so as to when outdoor condensator outlet temperature be less than predetermined outlet temperature, increase peripheral hardware device of becalming hides
The area of outdoor condenser is covered, reduces outdoor condenser and the heat exchange area of external environment condition, so as to reduce outdoor condenser
Heat transfer effect, maintain refrigerant pressure be in zone of reasonableness, wherein, the masked area is smaller, the outdoor condenser and
The heat exchange area of external environment condition is bigger.By the technical scheme, the heat exchange of outdoor condenser and external environment is weakened, maintains room
Outer refrigerant pressure is in rational scope, avoid because outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, increase
Add safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improve Consumer's Experience.
According to one embodiment of present invention, in addition to：Environment temperature detection unit 308, is examined by temperature sensor
Survey before the outdoor condensator outlet temperature of air conditioner, current environmental temperature is detected by environment temperature sensor；First determines
Unit 310, determines whether current environmental temperature is less than or equal to specific environment temperature, wherein, when it is determined that current environmental temperature is small
When specific environment temperature, into cryogenic refrigeration pattern.
The low-temperature refrigeration control device 300 of embodiments of the invention, can judge current environmental temperature in advance,
When current environmental temperature is less than or equal to specific environment temperature, judges that current environmental temperature is too low, cryogenic refrigeration pattern can be opened,
To avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add air-conditioning system in low temperature chamber outer shroud
Safety in operation at a temperature of border.
According to one embodiment of present invention, in addition to：First setting unit 312, it is empty being detected by temperature sensor
Before the outdoor condensator outlet temperature for adjusting device, according to the first setting command received, specific environment temperature is set and made a reservation for
Outlet temperature.
The low-temperature refrigeration control device 300 of embodiments of the invention, user be able to can pre-set pre- according to being actually needed
Environment temperature and predetermined outlet temperature are determined, so as to improve the flexibility being controlled to air conditioner and practicality.
According to one embodiment of present invention, execution unit 306 includes：Becalm device driver element 3062, when judging to tie
For when being, control motor driving peripheral hardware device of becalming of becalming moves fruit along outdoor condenser, makes outdoor condenser by peripheral hardware
The shielded area increase of device of becalming covering, so that outdoor condenser and the heat exchange area of external environment condition reduce；Second determines list
Member 3064, when judged result is no, do not adjust shielded area.
The low-temperature refrigeration control device 300 of embodiments of the invention, can be becalmed dress by motor driving peripheral hardware of becalming
Put along outdoor condenser and move, so as to increase or reduce shielded area, to change changing for outdoor condenser and external environment
Hot area.For example peripheral hardware device of becalming can be cloth of becalming, the cloth that will becalm rotates placement in connecting rod, covers on outdoor heat exchange
On the outside of device, micromachine and gear are provided with connecting rod, so, is rotated by micromachine drive gear, you can control hides
Wind cloth moves up and down in outdoor heat exchanger outer surface, increases or reduce shielded area.By the technical scheme, do not changing air-conditioning
On the basis of device original structure, by outdoor condenser air outlet temperature peripheral hardware can be controlled to becalm the lifting of device, so as to
Outdoor condenser and the heat exchange area of external environment, the heat transfer effect of control room external condenser, so as to tie up can easily be changed
Hold outdoor refrigerant pressure and be in rational scope, avoid because of outdoor refrigerant hypotony and caused by frosting, liquid hammer etc. ask
Topic, adds safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment, improves Consumer's Experience.
According to one embodiment of present invention, in addition to：Second setting unit 314, control becalm motor driving
Peripheral hardware is becalmed before device moves along outdoor condenser, according to the second setting command received, sets at least one outlet temperature
Becalmed device displacement corresponding to each outlet temperature scope in degree scope and at least one outlet temperature scope；And hide
Wind apparatus driver element 3062 is specifically used for：Determined at least one outlet temperature scope belonging to outdoor condensator outlet temperature
Target outlet temperature scope, and control motor driving peripheral hardware of becalming device movement target outlet temperature scope of becalming corresponding
Device displacement of becalming.
The low-temperature refrigeration control device 300 of embodiments of the invention, can be had according to outdoor condensator outlet temperature range
Body control peripheral hardware is becalmed the displacement of device, specifically, can pre-set outlet temperature scope, and set outlet temperature
Becalmed corresponding to scope device displacement, wherein, outdoor condensator outlet temperature it is lower, it is necessary to device displacement of becalming
Bigger, the weakening to the heat transfer effect of outdoor condenser is more obvious, so as to lifting refrigerant pressure as much as possible, avoid because
Outdoor refrigerant hypotony and caused by frosting, liquid hammer the problems such as, add air-conditioning system at a temperature of low temperature outdoor environment
Safety in operation, improve Consumer's Experience.
Fig. 4 shows the block diagram of air conditioner according to an embodiment of the invention.
As shown in figure 4, air conditioner 400 according to an embodiment of the invention, including the cryogenic refrigeration control shown in Fig. 3
Device 300.Therefore, the identical technology of low-temperature refrigeration control device 300 effect that air conditioner 400 has and above-described embodiment provides
Fruit, it will not be repeated here.
Technical scheme is described in detail above in association with accompanying drawing, by technical scheme, weakens room
The heat exchange of external condenser and external environment, maintain outdoor refrigerant pressure to be in rational scope, avoid because of outdoor refrigerant pressure
Power it is too low and caused by frosting, liquid hammer the problems such as, add safety in operation of the air-conditioning system at a temperature of low temperature outdoor environment,
Improve Consumer's Experience.
In the present invention, term " first ", " second ", " the 3rd " and be only used for description purpose, and it is not intended that instruction
Or imply relative importance；Term " multiple " represents two or more；Term " connected ", " connection " etc. all should do broad sense reason
Solution, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be joined directly together, can also
It is indirectly connected by intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in the present invention.
In the description of this specification, the description of term " one embodiment ", " another embodiment " etc., which means to combine, is somebody's turn to do
Embodiment or specific features, structure, material or the feature of example description are contained at least one embodiment or example of the present invention
In.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, retouch
Specific features, structure, material or the feature stated can be in any one or more embodiments or example in an appropriate manner
With reference to.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (7)
- A kind of 1. cryogenic refrigeration control method, for air conditioner, it is characterised in that including：Under cryogenic refrigeration pattern, the outdoor condensator outlet temperature of the air conditioner is detected by temperature sensor；Whether the outdoor condensator outlet temperature for judging to detect is less than or equal to predetermined outlet temperature；According to judged result, the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device；It is described that the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device according to judged result, including：When the judged result for when being, control motor of becalming drives the peripheral hardware to becalm device along the outdoor condenser It is mobile, the outdoor condenser is increased by the becalm shielded area of device covering of the peripheral hardware, so that the outdoor condenser Reduce with the heat exchange area of external environment condition；When the judged result is no, the shielded area is not adjusted；Drive the peripheral hardware to becalm before device moves along the outdoor condenser in control motor of becalming, also wrap Include：According to the second setting command received, at least one outlet temperature scope and at least one outlet temperature model are set Becalmed corresponding to each outlet temperature scope enclosed device displacement；AndControl motor of becalming drives peripheral hardware device of becalming to be moved along the outdoor condenser, specifically includes：The target outlet temperature belonging to the outdoor condensator outlet temperature is determined at least one outlet temperature scope Scope；Motor of being becalmed described in control drives peripheral hardware device of becalming to move institute corresponding to the target outlet temperature scope State device displacement of becalming.
- 2. cryogenic refrigeration control method according to claim 1, it is characterised in that detected described by temperature sensor Before the outdoor condensator outlet temperature of air conditioner, in addition to：Current environmental temperature is detected by environment temperature sensor；Determine whether the current environmental temperature is less than or equal to specific environment temperature；When it is determined that the current environmental temperature is less than or equal to the specific environment temperature, into the cryogenic refrigeration pattern.
- 3. cryogenic refrigeration control method according to claim 2, it is characterised in that detected described by temperature sensor Before the outdoor condensator outlet temperature of air conditioner, in addition to：According to the first setting command received, the specific environment temperature and the predetermined outlet temperature are set.
- A kind of 4. low-temperature refrigeration control device, for air conditioner, it is characterised in that including：Outlet temperature detection unit, under cryogenic refrigeration pattern, the outdoor condensation of the air conditioner is detected by temperature sensor Device outlet temperature；Whether judging unit, the outdoor condensator outlet temperature for judging to detect are less than or equal to predetermined outlet temperature；Execution unit, according to judged result, the peripheral hardware for adjusting the outdoor condenser of the air conditioner is becalmed the masked area of device；The execution unit includes：Becalm device driver element, when the judged result for when being, control motor of becalming drives the peripheral hardware to becalm dress Put along the outdoor condenser and move, make the outdoor condenser by the peripheral hardware becalm device covering shielded area increase, So that the outdoor condenser and the heat exchange area of external environment condition reduce；Second determining unit, when the judged result is no, the shielded area is not adjusted；The low-temperature refrigeration control device also includes：Second setting unit, peripheral hardware device of becalming is driven to be moved along the outdoor condenser in control motor of becalming Before dynamic, according to the second setting command received, at least one outlet temperature scope and at least one outlet temperature are set Becalmed device displacement corresponding to each outlet temperature scope in degree scope；AndThe device driver element of becalming is specifically used for：The target outlet temperature belonging to the outdoor condensator outlet temperature is determined at least one outlet temperature scope Scope, and motor of being becalmed described in control drives the peripheral hardware to becalm corresponding to the device movement target outlet temperature scope The device displacement of becalming.
- 5. low-temperature refrigeration control device according to claim 4, it is characterised in that also include：Environment temperature detection unit, before the outdoor condensator outlet temperature that air conditioner is detected by temperature sensor, Current environmental temperature is detected by environment temperature sensor；First determining unit, determines whether the current environmental temperature is less than or equal to specific environment temperature, wherein, when it is determined that institute When stating current environmental temperature and being less than or equal to the specific environment temperature, into the cryogenic refrigeration pattern.
- 6. low-temperature refrigeration control device according to claim 5, it is characterised in that also include：First setting unit, before the outdoor condensator outlet temperature that air conditioner is detected by temperature sensor, according to The first setting command received, the specific environment temperature and the predetermined outlet temperature are set.
- 7. a kind of air conditioner, it is characterised in that including the low-temperature refrigeration control device as any one of claim 4 to 6.
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| CN105674505B (en) * | 2016-03-04 | 2019-04-30 | 广东美的制冷设备有限公司 | The control method of air conditioner refrigeration |
| CN106440067A (en) * | 2016-11-30 | 2017-02-22 | 广州华凌制冷设备有限公司 | High-temperature refrigeration air conditioner and high-temperature refrigeration control method |
| CN108151254B (en) * | 2017-12-25 | 2020-09-08 | 广东美的制冷设备有限公司 | Air conditioner, operation control method, and computer-readable storage medium |
| CN112577164B (en) * | 2019-09-27 | 2022-03-25 | 广东美的制冷设备有限公司 | Control method and device of air conditioner, air conditioner and electronic equipment |
| CN113757816A (en) * | 2020-06-04 | 2021-12-07 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112212416B (en) * | 2020-10-14 | 2022-03-01 | 青岛海信日立空调系统有限公司 | Air conditioner and control method thereof |
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