CN106440067A - High-temperature refrigeration air conditioner and high-temperature refrigeration control method - Google Patents
High-temperature refrigeration air conditioner and high-temperature refrigeration control method Download PDFInfo
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- CN106440067A CN106440067A CN201611090744.2A CN201611090744A CN106440067A CN 106440067 A CN106440067 A CN 106440067A CN 201611090744 A CN201611090744 A CN 201611090744A CN 106440067 A CN106440067 A CN 106440067A
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- Prior art keywords
- heat exchanger
- temperature
- pressure
- temperature refrigeration
- indoor heat
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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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
- F24F11/70—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
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
Abstract
The invention relates to the technical field of air conditioners, in particular to a high-temperature refrigeration air conditioner and a high-temperature refrigeration control method. The high-temperature refrigeration air conditioner comprises a compressor, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are connected to form a refrigeration loop or a heating loop. The high-temperature refrigeration air conditioner further comprises a wind shielding device for shielding the indoor heat exchanger, a driving mechanism connected with the wind shielding device, and a control module for controlling the driving mechanism. A pressure sensor connected with the control module is arranged on a pipeline between the outdoor heat exchanger and the compressor, and the control module adjusts the shielding area, shielded by the wind shielding device, of the indoor heat exchanger through the driving mechanism according to data of the pressure sensor. According to the high-temperature refrigeration air conditioner, it is achieved that pressure can be kept within a proper range during refrigeration in the outdoor high-temperature environment, the problem that an air conditioning system cannot run in severe working conditions due to too high pressure is solved, and the running reliability and comfort in the high-temperature environment are greatly improved.
Description
Technical field
The present invention relates to air-conditioner technical field, more particularly, to a kind of high-temperature refrigeration air-conditioner and high-temperature refrigeration controlling party
Method is and in particular to a kind of high-temperature refrigeration that can effectively improve air conditioning unit reliability of operation in high temperature environments and comfortableness is empty
Adjust device and high-temperature refrigeration control method.
Background technology
At present much air conditioning unit in running, when ambient temperature is too high, the pressure of air conditioning unit system and row
Temperature degree is also higher, and the ambient temperature that existing most of air conditioning unit outdoor heat exchanger can bear is usually no more than 60
Degree.In order to reduce the pressure of system operation, to ensure the reliability of unit operation it is common practice that being provided with high-voltage switch gear or increasing
Set up defences high temperature protection function, its operation principle is：Air conditioning unit in running, when the pressure of system or pipe temperature surpasses
When crossing setting value, then pressure switch disconnects, and compressor or blower fan are out of service, thus reduces the pressure of system operation, prevents
The long-time overload operation of compressor.
But certain defect is all had using such method, specially：On the one hand, when ambient temperature is higher, pressure is higher
Then more easily high voltage protective in unit, and now user, then with greater need for refrigeration, leads to unit no if as hypertonia
When method is run, then it is easy to cause the complaint of user.On the other hand, the air conditioning unit employing high temperature-proof protection that has is although unit
Can also run, but now often result in because blower fan is out of service and return liquid in a large number, lead to liquid hammer, had a strong impact on compressor fortune
The reliability of row.
Content of the invention
(1) technical problem to be solved
The purpose of the present invention is：There is provided one kind can effectively improve air conditioning unit reliability of operation in high temperature environments and relax
The high-temperature refrigeration air-conditioner of adaptive and high-temperature refrigeration control method, with solve existing air conditioning unit under worst hot case due to pressure
The problem that power is too high and can not run.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of high-temperature refrigeration air-conditioner, form refrigeration including connecting
Loop or heat the compressor in loop, outdoor heat exchanger, throttling arrangement, indoor heat exchanger, is also included for covering described room
The drive mechanism that the device of becalming of interior heat exchanger is connected with described device of becalming and the control mould for controlling described drive mechanism
Block, the pipeline between described outdoor heat exchanger and described compressor is provided with the pressure transducer being connected with described control module,
Described control module, according to the data of described pressure transducer, is covered indoor by device of becalming described in the regulation of described drive mechanism
The masked area of heat exchanger.
Wherein, described device of becalming includes the tactic rolling slat of polylith and the spool for winding described rolling slat,
The both sides of described indoor heat exchanger are provided with the guide rail cooperating with described rolling slat, and described drive mechanism is with described spool even
Connect, with drive described spool drive described rolling slat along described guide rail move towards move.
Wherein, described rolling slat is made using asbestos or polystyrene material.
Wherein, described drive mechanism is micromachine.
Present invention also offers a kind of high-temperature refrigeration control method, for air-conditioner, including：
Under high-temperature refrigeration pattern, the pressure on the outdoor heat exchanger exhaustor of described air-conditioner is detected by pressure transducer
Force value；
Judge the pressure value on the described outdoor heat exchanger exhaustor that detects whether be in preset pressure upper limit value and lower limit value it
Between；
According to the pressure value on described outdoor heat exchanger exhaustor, adjust the dress of becalming of the indoor heat exchanger of described air-conditioner
The masked area put.
Wherein, before the described pressure value being detected by pressure transducer on described outdoor heat exchanger exhaustor, also wrap
Include：
Current environmental temperature is detected by environment temperature sensor；
Judge whether the described current environmental temperature detecting is more than or equal to specific environment temperature；
When the described current environmental temperature confirming to detect is more than or equal to specific environment temperature, the described high-temperature refrigeration of entrance
Pattern.
Wherein, before the described detection current environmental temperature by environment temperature sensor, also include：According to receive
Setting command, arranges described specific environment temperature and described preset pressure upper limit value and lower limit value.
Wherein, described according to the pressure value on described outdoor heat exchanger exhaustor, adjust the indoor heat exchange of described air-conditioner
The masked area of the device of becalming of device, including：
When described judged result is yes, then do not adjust described masked area；
When described judged result is no, then adjust described masked area.
Wherein, described when described judged result be no, then adjust described masked area, including：
If the pressure value on described outdoor heat exchanger exhaustor exceedes described preset pressure higher limit, drive mechanism is controlled to drive
Device of becalming described in dynamic is displaced outwardly along described indoor heat exchanger, increases the masked area of described indoor heat exchanger, until working as
Pressure value on front described outdoor heat exchanger exhaustor is less than described preset pressure higher limit, described drive mechanism out of service；
If the pressure value on described outdoor heat exchanger exhaustor is less than described preset pressure lower limit, control described driving machine
Device of becalming described in structure driving moves inwardly into collapsed state along described indoor heat exchanger.
(3) beneficial effect
The technique scheme of the present invention has the advantage that：The invention provides a kind of high-temperature refrigeration air-conditioner, including
Connect the compressor forming refrigerating circuit or heating loop, outdoor heat exchanger, throttling arrangement, indoor heat exchanger, also include using
In the drive mechanism becalmed device and is connected with device of becalming covering indoor heat exchanger and be used for controlling the control mould of drive mechanism
Block, the pipeline between outdoor heat exchanger and compressor is provided with the pressure transducer being connected with control module, control module according to
The data of pressure transducer, adjusts the masked area that device of becalming covers indoor heat exchanger by drive mechanism.Concrete air-conditioner
In refrigerating operaton, when outdoor environment temperature raises, the pressure at expulsion of air conditioning system and temperature increase, and now basis
Exhaust pressure value on pipeline suitably blocks the part heat exchange area of indoor heat exchanger, to weaken indoor heat exchanger and external environment
Heat exchange, then the back pressure of air conditioning system and temperature can reduce, pressure at expulsion and delivery temperature also can decrease, thus really
Protect air conditioning system pressure can be maintained in suitable scope when freezing under outdoor high temperature environment, solve air conditioning system and exist
The problem that can not be run due to hypertonia under bad working environments, substantially increases the reliability that air conditioning system is run in high temperature environments
Property and comfortableness.
Brief description
Fig. 1 is a kind of present invention high-temperature refrigeration air-conditioner and a kind of high-temperature refrigeration air-conditioner of high-temperature refrigeration embodiment of the method
Structured flowchart；
Fig. 2 is a kind of present invention high-temperature refrigeration air-conditioner and a kind of high-temperature refrigeration method of high-temperature refrigeration embodiment of the method
Flow chart.
In figure：1：Compressor；2：Cross valve；3：Outdoor heat exchanger；4：Pressure transducer；5：Throttling arrangement；6：Interior is changed
Hot device；7：Becalm device；8：Guide rail；9：Drive mechanism；10：Control module.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As shown in figure 1, embodiments providing a kind of high-temperature refrigeration air-conditioner, including connect formed refrigerating circuit or
Person heats the compressor 1 in loop, outdoor heat exchanger 3, throttling arrangement 5, indoor heat exchanger 6, also includes for covering indoor heat exchange
The drive mechanism 9 becalmed device 7 and be connected with device 7 of becalming of device 6 and the control module 10 for controlling drive mechanism 9, outdoor
Pipeline between heat exchanger 3 and compressor 1 is provided with the pressure transducer 4 being connected with control module 10, and pressure transducer 4 is used for
Read outdoor heat exchanger 3 exhaustor on pressure value, control module 10 according to the data of pressure transducer 4, by drive mechanism 9
Adjust the masked area that device 7 of becalming covers indoor heat exchanger 6, the corresponding heat-transfer surface adjusting indoor heat exchanger 6 and indoor environment
Long-pending, therefore ensure that pressure can be maintained in suitable scope when freezing under outdoor high temperature environment by air conditioning system, solve
The problem that air conditioning system can not be run due to hypertonia under bad working environments, substantially increases air conditioning system in high temperature environments
Reliability of operation and comfortableness.In the present embodiment, connect the refrigerating circuit being formed or heat four-way is additionally provided with loop
Valve 2, it is connected with the import and export of compressor 1, outdoor heat exchanger 3 and indoor heat exchanger 6 respectively, and throttling arrangement 5 is choke valve；Room
Interior heat exchanger 6 is indoor evaporator.
Specifically, device 7 of becalming includes the tactic rolling slat of polylith and the spool for winding rolling slat, and interior is changed
The both sides of hot device 6 are provided with the guide rail 8 cooperating with rolling slat, and drive mechanism 9 is connected with spool, to drive spool to drive roller shutter
Plate along guide rail 8 move towards move.Using the device 7 of becalming being made up of rolling slat and spool, take up room little, do not interfere with room
The installation of interior machine other structures；Simultaneously using said structure becalm device 7 can quick, flexible adjustment indoor heat exchanger 6 with
The heat exchange area of indoor environment, so that the high-temperature refrigeration air-conditioner that the application provides can make outdoor heat exchanger at short notice
Pressure value on 3 exhaustors is in rational pressure value interval, and then to extend the service life of high-temperature refrigeration air-conditioner.
Particularly, rolling slat may also be employed roller shutter cloth replacement.
Preferably, rolling slat is made using asbestos or polystyrene material.The rolling slat light weight made using above-mentioned material,
To mitigate the weight of whole air-conditioner；Good heat-insulation effect simultaneously, can reduce indoor heat exchanger 6 and indoor environment in maximization degree
The heat exchange efficiency of temperature, and then be beneficial to make the pressure value on the exhaustor of outdoor heat exchanger 3 quickly be in rational pressure value
In interval.Particularly, rolling slat may also be employed the preferably other material of high temperature resistant and effect of heat insulation and makes, such as high temperature resistant heat insulation
Cotton, ceramic fibre, crystal fibre or high aluminum fiber etc..
Preferably, drive mechanism 9 is micromachine.Micromachine takes up room little, does not affect the other structures of indoor set
Installation；Noise is low, to improve Consumer's Experience；Lightweight, to mitigate indoor heat exchanger 6 overall weight；In the present embodiment,
From motor as micromachine, high precision and high-temperature resistance are strong, beneficial to extending making of whole high-temperature refrigeration air-conditioner
Use the life-span.
As shown in Fig. 2 present invention also offers a kind of high-temperature refrigeration control method, for air-conditioner, including：In high temperature system
Under chill formula, the pressure value on outdoor heat exchanger 3 exhaustor of air-conditioner is detected by pressure transducer 4；Judgement detects
Whether the pressure value on outdoor heat exchanger 3 exhaustor is between preset pressure upper limit value and lower limit value；According to outdoor heat exchanger 3 aerofluxuss
Pressure value on pipe, the masked area of the device 7 of becalming of indoor heat exchanger 6 of adjustment air-conditioner.
Under high-temperature refrigeration pattern, due to the too high pressure at expulsion that can lead to whole air-conditioner of outdoor environment temperature and aerofluxuss
Temperature also can increase, and then can be caused by the problem that hypertonia can not be run.Therefore, under high-temperature refrigeration pattern,
Pressure value on outdoor heat exchanger 3 exhaustor of air-conditioner is detected by pressure transducer 4, and according to this pressure value come regulation room
Pressure value on outdoor heat exchanger 3 exhaustor of air-conditioner can be protected by interior heat exchanger 6 and the heat exchange area of indoor environment with this
Hold in suitable scope, solve the problems, such as air conditioning unit under bad working environments because hypertonia can not be run, and then significantly
Improve air conditioning unit reliability of operation in high temperature environments and comfortableness.
Further, before detect the pressure value on outdoor heat exchanger 3 exhaustor by pressure transducer 4, also include：
Current environmental temperature is detected by environment temperature sensor；Judge the current environmental temperature detecting whether more than or equal to predetermined
Ambient temperature；When the current environmental temperature confirming to detect is more than or equal to specific environment temperature, entrance high-temperature refrigeration pattern.This
The high-temperature refrigeration control method that application provides, can judge to current environmental temperature in advance, be more than in current environmental temperature
Or when being equal to specific environment temperature, judge that current environmental temperature is too high, high-temperature refrigeration pattern can be opened, to avoid because of outdoor heat exchange
Hypertonia on device 3 exhaustor, reduces safety in operation at a temperature of high temperature outdoor environment for the air conditioning system and reliability.
Further, before current environmental temperature is detected by environment temperature sensor, also include：According to receive
Setting command, setting specific environment temperature and preset pressure upper limit value and lower limit value.User can pre-set according to actual needs
Specific environment temperature and preset pressure upper limit value and lower limit value, thus improve the motility that air-conditioner is controlled and practicality.
Specifically, according to the pressure value on outdoor heat exchanger 3 exhaustor, the becalming of indoor heat exchanger 6 of adjustment air-conditioner
The masked area of device 7, including：
When judged result is yes, then do not adjust masked area；When judged result is no, then adjust masked area, specifically, control
Drive mechanism 9 processed drives device 7 of becalming mobile along indoor heat exchanger 6, makes indoor heat exchanger 6 by blocking that device 7 of becalming covers
Area increases or reduces, so that indoor heat exchanger 6 is decreased or increased with the heat exchange area of indoor environment, by using above-mentioned regulation
Mode, with guarantee air conditioning system under outdoor high temperature environment freeze when pressure can be maintained in suitable scope, and then
To improve operation stability and the safety of air-conditioner.
Further, when judged result is no, then adjust masked area, including：If the pressure on outdoor heat exchanger 3 exhaustor
Force value exceedes preset pressure higher limit, controls drive mechanism 9 to drive device 7 of becalming to be displaced outwardly along indoor heat exchanger 6, increases
The masked area of indoor heat exchanger 6, to weaken the exchange capability of heat of indoor heat exchanger 6 and indoor environment, until current outdoor heat exchange
Pressure value on device 3 exhaustor is less than preset pressure higher limit, drive mechanism 9 out of service, then device 7 of becalming is out of service；
If the pressure value on outdoor heat exchanger 3 exhaustor is less than preset pressure lower limit, drive mechanism 9 is controlled to drive device 7 edge of becalming
Indoor heat exchanger 6 and move inwardly into collapsed state, device 7 of now becalming completely closes, to ensure indoor heat exchanger 6 and interior
The normal heat exchange of environment.
In sum, the invention provides a kind of high-temperature refrigeration air-conditioner, form refrigerating circuit including connection or heat
The compressor in loop, outdoor heat exchanger, throttling arrangement, indoor heat exchanger, also include the dress of becalming for covering indoor heat exchanger
Put the drive mechanism being connected with device of becalming and for controlling the control module of drive mechanism, outdoor heat exchanger and compressor it
Between pipeline be provided with the pressure transducer being connected with control module, control module according to the data of pressure transducer, by driving
Motivation structure adjusts the masked area that device of becalming covers indoor heat exchanger.Concrete air-conditioner, in refrigerating operaton, works as outdoor environment
When temperature raises, the pressure at expulsion of air conditioning system and temperature increase, and now suitable according to the exhaust pressure value on pipeline
Block the part heat exchange area of indoor heat exchanger, to weaken the heat exchange of indoor heat exchanger and external environment, then air conditioning system return
Atmospheric pressure and temperature can reduce, and pressure at expulsion and delivery temperature also can decrease, and therefore ensure that air conditioning system in outdoor high temperature
Pressure can be maintained in suitable scope when freezing under environment, solve air conditioning system under bad working environments due to pressure mistake
The problem that height can not run, substantially increases air conditioning system reliability of operation and comfortableness in high temperature environments.
Finally it should be noted that：Above example only in order to technical scheme to be described, is not intended to limit；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a kind of high-temperature refrigeration air-conditioner, including connect formed refrigerating circuit or heat the compressor in loop, outdoor heat exchanger,
Throttling arrangement, indoor heat exchanger it is characterised in that：Also include for cover described indoor heat exchanger becalm device with described
The drive mechanism that device of becalming connects and the control module for controlling described drive mechanism, described outdoor heat exchanger and described pressure
Pipeline between contracting machine is provided with the pressure transducer being connected with described control module, and described control module passes according to described pressure
The data of sensor, covers the masked area of indoor heat exchanger by device of becalming described in the regulation of described drive mechanism.
2. high-temperature refrigeration air-conditioner according to claim 1 it is characterised in that：Described device of becalming includes polylith order and arranges
The rolling slat of row and for winding the spool of described rolling slat, the both sides of described indoor heat exchanger are provided with mutual with described rolling slat
The guide rail of cooperation, described drive mechanism is connected with described spool, to drive described spool to drive described rolling slat to lead along described
Rail move towards move.
3. high-temperature refrigeration air-conditioner according to claim 2 it is characterised in that：Described rolling slat adopts asbestos or polyphenyl second
Alkene material is made.
4. the high-temperature refrigeration air-conditioner according to any one of claim 1-3 it is characterised in that：Described drive mechanism is miniature
Motor.
5. a kind of high-temperature refrigeration control method, for air-conditioner it is characterised in that including：
Under high-temperature refrigeration pattern, the pressure on the outdoor heat exchanger exhaustor of described air-conditioner is detected by pressure transducer
Value；
Judge whether the pressure value on the described outdoor heat exchanger exhaustor detecting is between preset pressure upper limit value and lower limit value；
According to the pressure value on described outdoor heat exchanger exhaustor, adjust the device of becalming of indoor heat exchanger of described air-conditioner
Masked area.
6. high-temperature refrigeration control method according to claim 5 is it is characterised in that detected by pressure transducer described
Before pressure value on described outdoor heat exchanger exhaustor, also include：
Current environmental temperature is detected by environment temperature sensor；
Judge whether the described current environmental temperature detecting is more than or equal to specific environment temperature；
When the described current environmental temperature confirming to detect is more than or equal to specific environment temperature, the described high-temperature refrigeration mould of entrance
Formula.
7. high-temperature refrigeration control method according to claim 6 is it is characterised in that described by environment temperature sensor
Before detection current environmental temperature, also include：According to the setting command receiving, described specific environment temperature and described pre- is set
If pressure upper limit value and lower limit value.
8. the high-temperature refrigeration control method according to any one of claim 5-7 it is characterised in that described according to described outdoor
Pressure value on heat exchanger exhaustor, adjusts the masked area of the device of becalming of indoor heat exchanger of described air-conditioner, including：
When described judged result is yes, then do not adjust described masked area；
When described judged result is no, then adjust described masked area.
9. high-temperature refrigeration control method according to claim 8 it is characterised in that described when described judged result be no,
Then adjust described masked area, including：
If the pressure value on described outdoor heat exchanger exhaustor exceedes described preset pressure higher limit, drive mechanism is controlled to drive institute
State device of becalming to be displaced outwardly along described indoor heat exchanger, increase the masked area of described indoor heat exchanger, until current institute
The pressure value stated on outdoor heat exchanger exhaustor is less than described preset pressure higher limit, described drive mechanism out of service；
If the pressure value on described outdoor heat exchanger exhaustor is less than described preset pressure lower limit, described drive mechanism is controlled to drive
Device of becalming described in dynamic moves inwardly into collapsed state along described indoor heat exchanger.
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| CN201611090744.2A CN106440067A (en) | 2016-11-30 | 2016-11-30 | High-temperature refrigeration air conditioner and high-temperature refrigeration control method |
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| CN201611090744.2A CN106440067A (en) | 2016-11-30 | 2016-11-30 | High-temperature refrigeration air conditioner and high-temperature refrigeration control method |
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Family
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| CN111578388A (en) * | 2020-04-10 | 2020-08-25 | 青岛海信日立空调系统有限公司 | Air condensing units and air conditioner |
| CN113757816A (en) * | 2020-06-04 | 2021-12-07 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112212416A (en) * | 2020-10-14 | 2021-01-12 | 青岛海信日立空调系统有限公司 | Air conditioner and control method thereof |
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