CN104089380A - Ultralow-temperature air conditioner refrigeration method and device - Google Patents

Ultralow-temperature air conditioner refrigeration method and device Download PDF

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Publication number
CN104089380A
CN104089380A CN201410373002.5A CN201410373002A CN104089380A CN 104089380 A CN104089380 A CN 104089380A CN 201410373002 A CN201410373002 A CN 201410373002A CN 104089380 A CN104089380 A CN 104089380A
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China
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prerequisite
temperature
blower fan
meets
coil temperature
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CN201410373002.5A
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Chinese (zh)
Inventor
李文
胡根
彭琪
邓安哲
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Guangdong Chigo Air Conditioning Co Ltd
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Guangdong Chigo Air Conditioning Co Ltd
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Priority to CN201410373002.5A priority Critical patent/CN104089380A/en
Publication of CN104089380A publication Critical patent/CN104089380A/en
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Abstract

The embodiment of the invention discloses an ultralow-temperature air conditioner refrigeration method and device. The method and device solve the technical problems that an indoor unit is frozen and blows water under the low-temperature environment, and oil returning of a compressor is hard. The method comprises the steps of 1, judging whether collected outdoor temperature needs to enter in a low-temperature refrigeration mode or not, and if the outdoor temperature meets the first preset condition, executing the step 2; 2, entering in the low-temperature refrigeration mode; 3, judging whether the coil temperature of a fan meets a third preset condition or a fourth preset condition, if the coil temperature meets the third preset condition, stopping the fan from operating, and if the coil temperature meets the fourth preset condition, starting the fan to operate.

Description

A kind of ultralow temperature air conditioner refrigerating method and device
Technical field
The present invention relates to automatic control technology field, relate in particular to a kind of ultralow temperature air conditioner refrigerating method and device.
Background technology
Convertible frequency air-conditioner is on the basis of common air-conditioning, to have selected frequency conversion dedicated compressor, has increased frequency-changing control system.Its basic structure is identical with common air-conditioning with refrigeration principle.The main frame of convertible frequency air-conditioner is automatically to carry out infinite variable speedly, and it can provide required cold (heat) amount automatically according to room availability; When indoor temperature reaches after desired value, air-conditioner host, can accurately keep the operate at constant speed of this temperature, is realized " not shutting down running ", thereby guarantees the stable of environment temperature.
Current air-conditioning system, for example conventional domestic variable frequency air-conditioning system its outdoor environment temperature is more than 8 ℃ in when refrigeration, when outdoor environment is during lower than 8 ℃, because the integral pressure of air-conditioning system is too low, more easily cause that indoor set freezes, blows the phenomenons such as water, and the problem of compressor oil return difficulty.
Too low for the integral pressure solving based on the above-mentioned air-conditioning system of mentioning, more easily cause that indoor set freezes, blows the phenomenons such as water, and the problem of compressor oil return difficulty, the present invention proposes a kind of start and stop technology of controlling blower fan.
Summary of the invention
The embodiment of the present invention provides a kind of ultralow temperature air conditioner refrigerating method and device, and solve indoor set under low temperature environment and frozen, blown the phenomenons such as water, and the technical problem of compressor oil return difficulty.
A kind of ultralow temperature air conditioner refrigerating method that the embodiment of the present invention provides, comprising:
S1: whether the outdoor temperature that judgement gathers is to enter cryogenic refrigeration pattern, if described outdoor temperature meets the first prerequisite, performs step S2;
S2: enter cryogenic refrigeration pattern;
S3: the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
Preferably,
After described step S1, also comprise:
If described outdoor temperature meets the second prerequisite, exit cryogenic refrigeration pattern.
Preferably,
Described step S1 specifically comprises:
Whether judgement is to enter cryogenic refrigeration pattern by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, if described outdoor temperature, lower than 10 ℃, performs step S2.
Preferably,
Described step S3 specifically comprises:
By temperature sensor, the described coil temperature of described blower fan is detected;
Judge that described coil temperature meets described the 3rd prerequisite or described the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
Preferably,
Described the 3rd prerequisite is that described coil temperature is lower than 16 ℃, and more than lasting duration 20s;
Described the 4th prerequisite is that described coil temperature is higher than 42 ℃.
Preferably,
If described outdoor temperature meets the second prerequisite, exit cryogenic refrigeration pattern and specifically comprise:
If described outdoor temperature is higher than 13 ℃, and during lasting duration 300s, exit cryogenic refrigeration pattern;
Recover conventional operation pattern.
A kind of ultralow temperature air-conditioning refrigeration plant that the embodiment of the present invention provides, is used by the ultralow temperature air conditioner refrigerating method of mentioning in this example, comprising:
The first judging unit, for judging whether the outdoor temperature of collection is to enter cryogenic refrigeration pattern, if described outdoor temperature meets the first prerequisite, triggers cryogenic unit, if described outdoor temperature meets the second prerequisite, triggers low temperature and exits unit;
Described cryogenic unit, for entering cryogenic refrigeration pattern;
Described low temperature exits unit, for exiting cryogenic refrigeration pattern.
The second judging unit, for the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
Preferably,
Described the first judging unit, specifically for judgement, by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, whether be to enter cryogenic refrigeration pattern, if described outdoor temperature is lower than 10 ℃, trigger described cryogenic unit, if described outdoor temperature is higher than 13 ℃, and during lasting duration 300s, trigger described low temperature and exit unit.
Preferably,
Described the second judging unit specifically comprises:
Detection sub-unit, for detecting the described coil temperature of described blower fan by temperature sensor;
The second judgment sub-unit, be used for judging that described coil temperature meets described the 3rd prerequisite or described the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running;
Wherein, described the 3rd prerequisite is that described coil temperature is lower than 16 ℃, and more than lasting duration 20s;
Described the 4th prerequisite is that described coil temperature is higher than 42 ℃.
Preferably,
Described low temperature exits unit and also comprises:
Normal mode subelement, for exiting after cryogenic refrigeration pattern, recovers conventional operation pattern.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
A kind of ultralow temperature air conditioner refrigerating method and device that the embodiment of the present invention provides, wherein, method comprises: S1: whether the outdoor temperature that judgement gathers is to enter cryogenic refrigeration pattern, if described outdoor temperature meets the first prerequisite, performs step S2; S2: enter cryogenic refrigeration pattern; S3: the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.In the present embodiment, by the outdoor temperature that gathers for after need to entering cryogenic refrigeration pattern, judge again the satisfied condition of coil temperature of blower fan, carry out on off control, touch the increased pressure that makes air-conditioning system, further make the evaporating temperature of indoor evaporator improve, inner cold medium flux increases, improve refrigerant flow rate in condenser and evaporimeter, thereby solved indoor set under low temperature environment, freeze, blow the phenomenons such as water, and the technical problem of compressor oil return difficulty.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of an embodiment of a kind of ultralow temperature air conditioner refrigerating method that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of another embodiment of a kind of ultralow temperature air conditioner refrigerating method that Fig. 2 provides for the embodiment of the present invention;
The structural representation of an embodiment of a kind of ultralow temperature air-conditioning refrigeration plant that Fig. 3 provides for the embodiment of the present invention;
The structural representation of another embodiment of a kind of ultralow temperature air-conditioning refrigeration plant that Fig. 4 provides for the embodiment of the present invention.
The specific embodiment
The embodiment of the present invention provides a kind of ultralow temperature air conditioner refrigerating method and device, and solve indoor set under low temperature environment and frozen, blown the phenomenons such as water, and the technical problem of compressor oil return difficulty.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiment, but not whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, an embodiment of a kind of ultralow temperature air conditioner refrigerating method that the embodiment of the present invention provides comprises:
S1: whether the outdoor temperature that judgement gathers is to enter cryogenic refrigeration pattern, if outdoor temperature meets the first prerequisite, performs step S2;
In the present embodiment, when using split domestic variable frequency air-conditioning system, whether the outdoor temperature that first needs judgement to gather is to enter cryogenic refrigeration pattern, if outdoor temperature meets the first prerequisite, perform step S2, it should be noted that, aforesaid outdoor temperature meets the detailed process of the first prerequisite by being described in detail in follow-up embodiment, repeats no more herein.
S2: enter cryogenic refrigeration pattern;
After satisfied the first prerequisite of outdoor temperature that judgement gathers, enter cryogenic refrigeration pattern, be understandable that, the aforesaid cryogenic refrigeration pattern that enters is that split domestic variable frequency air-conditioning system enters cryogenic refrigeration pattern.
S3: the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stop blower fan running, if coil temperature meets the 4th prerequisite, start blower fan running.
In the present embodiment, after split domestic variable frequency air-conditioning system enters cryogenic refrigeration pattern, need to carry out to the coil temperature of blower fan the judgement of the 3rd prerequisite and the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stop blower fan running, if coil temperature meets the 4th prerequisite, start blower fan running.
In the present embodiment, by the outdoor temperature that gathers for after need to entering cryogenic refrigeration pattern, judge again the satisfied condition of coil temperature of blower fan, carry out on off control, touch the increased pressure that makes air-conditioning system, further make the evaporating temperature of indoor evaporator improve, inner cold medium flux increases, improve refrigerant flow rate in condenser and evaporimeter, thereby solved indoor set under low temperature environment, freeze, blow the phenomenons such as water, and the technical problem of compressor oil return difficulty.
Be that the process of ultralow temperature air conditioner refrigerating method is described in detail above, will be described in detail each prerequisite below, refer to Fig. 2, another embodiment of a kind of ultralow temperature air conditioner refrigerating method that the embodiment of the present invention provides comprises:
201, whether judgement is to enter cryogenic refrigeration pattern by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, if outdoor temperature meets the first prerequisite, performs step 202, if satisfied the second prerequisite of outdoor temperature performs step 203;
In the present embodiment, when using split domestic variable frequency air-conditioning system, first need whether judgement is to enter cryogenic refrigeration pattern by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, if outdoor temperature meets the first prerequisite, perform step 202, if outdoor temperature meets the second prerequisite, perform step 203, it should be noted that, it is that outdoor temperature is lower than 10 ℃ that aforesaid outdoor temperature meets the first prerequisite, and the duration is while being 0s, it is that outdoor temperature is higher than 13 ℃ that aforesaid outdoor temperature meets the second prerequisite, and during lasting duration 300s.
202, enter cryogenic refrigeration pattern;
After satisfied the first prerequisite of outdoor temperature that judgement gathers, enter cryogenic refrigeration pattern, be understandable that, the aforesaid cryogenic refrigeration pattern that enters is that split domestic variable frequency air-conditioning system enters cryogenic refrigeration pattern.
203, exit cryogenic refrigeration pattern;
After satisfied the second prerequisite of outdoor temperature that judgement gathers, exit cryogenic refrigeration pattern, be understandable that, the aforesaid cryogenic refrigeration pattern that exits is that split domestic variable frequency air-conditioning system exits cryogenic refrigeration pattern, further recovers conventional operation pattern.
204, by temperature sensor, the coil temperature of blower fan is detected;
After split domestic variable frequency air-conditioning system enters cryogenic refrigeration pattern, by temperature sensor, the coil temperature of blower fan is detected.
205, judgement coil temperature meets the 3rd prerequisite or the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stops blower fan running, if coil temperature meets the 4th prerequisite, starts blower fan running.
In the present embodiment, after the coil temperature of blower fan being detected by temperature sensor, need to judge that coil temperature meets the 3rd prerequisite or the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stop blower fan running, if coil temperature meets the 4th prerequisite, start blower fan running.
It should be noted that, aforesaid the 3rd prerequisite be coil temperature lower than 16 ℃, and more than lasting duration 20s, aforesaid the 4th prerequisite is that coil temperature is higher than 42 ℃.
In the present embodiment, by the outdoor temperature that gathers for after need to entering cryogenic refrigeration pattern, judge again the satisfied condition of coil temperature of blower fan, carry out on off control, touch the increased pressure that makes air-conditioning system, further make the evaporating temperature of indoor evaporator improve, inner cold medium flux increases, improve refrigerant flow rate in condenser and evaporimeter, thereby solved indoor set under low temperature environment, freeze, blow the phenomenons such as water, and the technical problem of compressor oil return difficulty.
An embodiment of a kind of ultralow temperature air-conditioning refrigeration plant providing in the embodiment of the present invention as shown in Figure 3, comprises:
The first judging unit 301, for judging whether the outdoor temperature of collection is to enter cryogenic refrigeration pattern, if outdoor temperature meets the first prerequisite, trigger cryogenic unit 302, if outdoor temperature meets the second prerequisite, trigger low temperature and exit unit 303;
Cryogenic unit 302, for entering cryogenic refrigeration pattern;
Low temperature exits unit 303, for exiting cryogenic refrigeration pattern.
The second judging unit 304, for the coil temperature of blower fan being carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stops blower fan running, if coil temperature meets the 4th prerequisite, starts blower fan running.
In the present embodiment, the outdoor temperature gathering by the first judging unit 301 is for after need to entering cryogenic refrigeration pattern, the second judging unit 304 judges the satisfied condition of coil temperature of blower fan again, carry out on off control, touch the increased pressure that makes air-conditioning system, further make the evaporating temperature of indoor evaporator improve, inner cold medium flux increases, improve refrigerant flow rate in condenser and evaporimeter, thereby solved indoor set under low temperature environment, freeze, blow the phenomenons such as water, and the technical problem of compressor oil return difficulty.
That each unit of ultralow temperature air-conditioning refrigeration plant is described in detail above, to the subelement of the second judging unit be described in detail below, an embodiment of a kind of ultralow temperature air-conditioning refrigeration plant providing in the embodiment of the present invention as shown in Figure 4, comprises:
The first judging unit 401, for judging whether the outdoor temperature of collection is to enter cryogenic refrigeration pattern, if outdoor temperature meets the first prerequisite, trigger cryogenic unit 402, if outdoor temperature meets the second prerequisite, trigger low temperature and exit unit 403, it should be noted that, whether the first judging unit 401 can also be to enter cryogenic refrigeration pattern by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature specifically for judgement, if outdoor temperature is lower than 10 ℃, trigger cryogenic unit 402, if outdoor temperature is higher than 13 ℃, and during lasting duration 300s, trigger low temperature and exit unit 403.
Cryogenic unit 402, for entering cryogenic refrigeration pattern;
Low temperature exits unit 403, for exiting cryogenic refrigeration pattern;
Wherein, low temperature exits unit 403 and can further include:
Normal mode subelement 4031, for exiting after cryogenic refrigeration pattern, recovers conventional operation pattern.
The second judging unit 404, for the coil temperature of blower fan being carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stops blower fan running, if coil temperature meets the 4th prerequisite, starts blower fan running.
Wherein, the second judging unit 404 can further include:
Detection sub-unit 4041, for detecting the coil temperature of blower fan by temperature sensor;
The second judgment sub-unit 4042, for judging that coil temperature meets the 3rd prerequisite or the 4th prerequisite, if coil temperature meets the 3rd prerequisite, stops blower fan running, if coil temperature meets the 4th prerequisite, starts blower fan running;
Wherein, the 3rd prerequisite is that coil temperature is lower than 16 ℃, and more than lasting duration 20s;
The 4th prerequisite is that coil temperature is higher than 42 ℃.
In the present embodiment, the outdoor temperature gathering by the first judging unit 401 is for after need to entering cryogenic refrigeration pattern, the second judging unit 404 judges the satisfied condition of coil temperature of blower fan again, carry out on off control, touch the increased pressure that makes air-conditioning system, further make the evaporating temperature of indoor evaporator improve, inner cold medium flux increases, improve refrigerant flow rate in condenser and evaporimeter, thereby solved indoor set under low temperature environment, freeze, blow the phenomenons such as water, and the technical problem of compressor oil return difficulty.
Those skilled in the art can be well understood to, for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, INDIRECT COUPLING or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed on a plurality of NEs.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If the form of SFU software functional unit of usining described integrated unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Understanding based on such, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only storage (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above, above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a ultralow temperature air conditioner refrigerating method, is characterized in that, comprising:
S1: whether the outdoor temperature that judgement gathers is to enter cryogenic refrigeration pattern, if described outdoor temperature meets the first prerequisite, performs step S2;
S2: enter cryogenic refrigeration pattern;
S3: the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
2. method according to claim 1, is characterized in that, after described step S1, also comprises:
If described outdoor temperature meets the second prerequisite, exit cryogenic refrigeration pattern.
3. method according to claim 1, is characterized in that, described step S1 specifically comprises:
Whether judgement is to enter cryogenic refrigeration pattern by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, if described outdoor temperature, lower than 10 ℃, performs step S2.
4. method according to claim 1, is characterized in that, described step S3 specifically comprises:
By temperature sensor, the described coil temperature of described blower fan is detected;
Judge that described coil temperature meets described the 3rd prerequisite or described the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
5. method according to claim 4, is characterized in that, described the 3rd prerequisite is that described coil temperature is lower than 16 ℃, and more than lasting duration 20s;
Described the 4th prerequisite is that described coil temperature is higher than 42 ℃.
6. method according to claim 2, is characterized in that, if described outdoor temperature meets the second prerequisite, exits cryogenic refrigeration pattern and specifically comprises:
If described outdoor temperature is higher than 13 ℃, and during lasting duration 300s, exit cryogenic refrigeration pattern;
Recover conventional operation pattern.
7. a ultralow temperature air-conditioning refrigeration plant, is used by the ultralow temperature air conditioner refrigerating method described in claim 1 to 6, it is characterized in that, comprising:
The first judging unit, for judging whether the outdoor temperature of collection is to enter cryogenic refrigeration pattern, if described outdoor temperature meets the first prerequisite, triggers cryogenic unit, if described outdoor temperature meets the second prerequisite, triggers low temperature and exits unit;
Described cryogenic unit, for entering cryogenic refrigeration pattern;
Described low temperature exits unit, for exiting cryogenic refrigeration pattern.
The second judging unit, for the coil temperature of blower fan is carried out to the judgement of the 3rd prerequisite and the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running.
8. ultralow temperature air-conditioning refrigeration plant according to claim 7, is characterized in that,
Described the first judging unit, specifically for judgement, by the pop one's head in outdoor temperature of Real-time Collection of outdoor temperature, whether be to enter cryogenic refrigeration pattern, if described outdoor temperature is lower than 10 ℃, trigger described cryogenic unit, if described outdoor temperature is higher than 13 ℃, and during lasting duration 300s, trigger described low temperature and exit unit.
9. ultralow temperature air-conditioning refrigeration plant according to claim 7, is characterized in that, described the second judging unit specifically comprises:
Detection sub-unit, for detecting the described coil temperature of described blower fan by temperature sensor;
The second judgment sub-unit, be used for judging that described coil temperature meets described the 3rd prerequisite or described the 4th prerequisite, if described coil temperature meets described the 3rd prerequisite, stop described blower fan running, if described coil temperature meets described the 4th prerequisite, start described blower fan running;
Wherein, described the 3rd prerequisite is that described coil temperature is lower than 16 ℃, and more than lasting duration 20s;
Described the 4th prerequisite is that described coil temperature is higher than 42 ℃.
10. ultralow temperature air-conditioning refrigeration plant according to claim 7, is characterized in that, described low temperature exits unit and also comprises:
Normal mode subelement, for exiting after cryogenic refrigeration pattern, recovers conventional operation pattern.
CN201410373002.5A 2014-07-31 2014-07-31 Ultralow-temperature air conditioner refrigeration method and device Pending CN104089380A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848484A (en) * 2015-05-12 2015-08-19 广东美的制冷设备有限公司 Control method for air conditioner and air conditioner
CN105318506A (en) * 2015-11-26 2016-02-10 广东美的制冷设备有限公司 Control method and device of air conditioner, and air conditioner
CN105588260A (en) * 2014-12-26 2016-05-18 海信(山东)空调有限公司 Method and device for regulating rotating speed of outdoor fan
CN106288160A (en) * 2016-08-08 2017-01-04 美的集团武汉制冷设备有限公司 A kind of cryogenic refrigeration control method, low-temperature refrigeration control device and air-conditioner
CN108019895A (en) * 2017-11-27 2018-05-11 青岛海尔空调电子有限公司 The control method of air-conditioning
CN109269020A (en) * 2018-10-15 2019-01-25 珠海格力电器股份有限公司 Air conditioning control method, control device and air-conditioning
CN110617558A (en) * 2019-08-16 2019-12-27 成都仙德科技有限公司 Portable sound energy air conditioner refrigeration method
CN110857809A (en) * 2018-08-24 2020-03-03 青岛海尔空调器有限总公司 Air conditioner and oil return control method thereof
CN112902503A (en) * 2021-02-03 2021-06-04 四川长虹空调有限公司 Variable frequency multi-split air conditioning unit heating oil return control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256021A (en) * 2007-09-27 2008-09-03 宁波奥克斯空调有限公司 Control method for air conditioner capable of low-temperature refrigeration
CN202792404U (en) * 2012-09-06 2013-03-13 广东美的电器股份有限公司 Air conditioner and outdoor unit thereof
CN103398444A (en) * 2013-07-01 2013-11-20 Tcl空调器(中山)有限公司 Air conditioner low-temperature refrigeration method and device
CN103411292A (en) * 2013-08-30 2013-11-27 广东志高暖通设备股份有限公司 Method for controlling low temperature refrigeration of air conditioner
CN103807970A (en) * 2012-11-12 2014-05-21 珠海格力电器股份有限公司 Control method and control device of air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256021A (en) * 2007-09-27 2008-09-03 宁波奥克斯空调有限公司 Control method for air conditioner capable of low-temperature refrigeration
CN202792404U (en) * 2012-09-06 2013-03-13 广东美的电器股份有限公司 Air conditioner and outdoor unit thereof
CN103807970A (en) * 2012-11-12 2014-05-21 珠海格力电器股份有限公司 Control method and control device of air conditioner
CN103398444A (en) * 2013-07-01 2013-11-20 Tcl空调器(中山)有限公司 Air conditioner low-temperature refrigeration method and device
CN103411292A (en) * 2013-08-30 2013-11-27 广东志高暖通设备股份有限公司 Method for controlling low temperature refrigeration of air conditioner

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105588260A (en) * 2014-12-26 2016-05-18 海信(山东)空调有限公司 Method and device for regulating rotating speed of outdoor fan
CN104848484A (en) * 2015-05-12 2015-08-19 广东美的制冷设备有限公司 Control method for air conditioner and air conditioner
CN104848484B (en) * 2015-05-12 2017-12-19 广东美的制冷设备有限公司 The control method and air conditioner of air conditioner
CN105318506B (en) * 2015-11-26 2018-07-10 广东美的制冷设备有限公司 Control method, device and the air conditioner of air conditioner
CN105318506A (en) * 2015-11-26 2016-02-10 广东美的制冷设备有限公司 Control method and device of air conditioner, and air conditioner
CN106288160A (en) * 2016-08-08 2017-01-04 美的集团武汉制冷设备有限公司 A kind of cryogenic refrigeration control method, low-temperature refrigeration control device and air-conditioner
CN106288160B (en) * 2016-08-08 2019-04-09 美的集团武汉制冷设备有限公司 A kind of cryogenic refrigeration control method, low-temperature refrigeration control device and air conditioner
CN108019895A (en) * 2017-11-27 2018-05-11 青岛海尔空调电子有限公司 The control method of air-conditioning
CN108019895B (en) * 2017-11-27 2020-11-24 青岛海尔空调电子有限公司 Control method of air conditioner
CN110857809A (en) * 2018-08-24 2020-03-03 青岛海尔空调器有限总公司 Air conditioner and oil return control method thereof
CN109269020A (en) * 2018-10-15 2019-01-25 珠海格力电器股份有限公司 Air conditioning control method, control device and air-conditioning
CN110617558A (en) * 2019-08-16 2019-12-27 成都仙德科技有限公司 Portable sound energy air conditioner refrigeration method
CN112902503A (en) * 2021-02-03 2021-06-04 四川长虹空调有限公司 Variable frequency multi-split air conditioning unit heating oil return control method

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Application publication date: 20141008