CN104251596A - Control method for defrosting system of direct-cooling refrigerator - Google Patents
Control method for defrosting system of direct-cooling refrigerator Download PDFInfo
- Publication number
- CN104251596A CN104251596A CN201310258593.7A CN201310258593A CN104251596A CN 104251596 A CN104251596 A CN 104251596A CN 201310258593 A CN201310258593 A CN 201310258593A CN 104251596 A CN104251596 A CN 104251596A
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- CN
- China
- Prior art keywords
- defrost
- control method
- magnetic valve
- compressor
- defrosting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2507—Flow-diverting valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
Abstract
The invention provides a control method for a defrosting system of a direct-cooling refrigerator. The control method comprises the following steps of starting a main refrigerating circulation system, wherein, at the moment, a first switch device is connected with a compressor and a condenser, and a second switch device is connected with the compressor and a refrigerating and freezing evaporation pipe; judging whether defrosting can be carried out or not according to the frosting degree; starting a defrosting temperature controller if so, and starting a defrosting and refrigerating circulation system by enabling the defrosting temperature controller to switch the first switch device to be connected with the compressor and a freezing chamber evaporator and the second switch device to be connected with the compressor and a defrosting and freezing evaporation pipe. According to the control method provided by the invention, the switching between the main refrigerating circulation system and the defrosting and refrigerating circulation system is realized through the switching of the first switch device and the second switch device, and thus the automatic defrosting of a freezing chamber is realized.
Description
Technical field
The present invention relates to refrigerator technical field, particularly relate to a kind of defrosting system control method for direct cooling refrigerator.
Background technology
The refrigeration modes of current refrigerator has direct-cooled and air-cooled two kinds of modes.Two kinds of refrigeration modes respectively have pluses and minuses, the easy frosting of direct cooling refrigerator, and food is air-dry taint of odour not easily; Wind cooling refrigerator frost-free but the easy air-dry taint of odour of food.For the frosting problem of direct cooling refrigerator, existing defrost technology generally adopts auto-compensation heater strip to carry out defrost to refrigerating chamber, and refrigerating chamber needs user regularly manually to defrost.Manual defrosting is wasted time and energy, and becomes the worry of all multi-users.
Summary of the invention
The object of the present invention is to provide a kind of defrosting system control method for direct cooling refrigerator, the automatic defrosting of refrigerating chamber can be realized.
For achieving the above object, the present invention adopts following technical scheme: a kind of defrosting system control method for direct cooling refrigerator, comprises the following steps:
S1: start main cooling cycle system, now the first switching device connects compressor and condenser, and second switch device connects compressor and refrigerates evaporation tube;
S2: according to frosting degree, judges whether to carry out defrost;
S3: in this way, then start defrost temperature controller, and the first switching device switches to and connects compressor and freezer evaporator by this defrost temperature controller, switched to by second switch device to connect compressor and refrigerate evaporation tube with defrost, startup defrost cooling cycle system whereby.
As a further improvement on the present invention, in S2 step, set the main kind of refrigeration cycle time, the time then, starts defrost temperature controller automatically.
As a further improvement on the present invention, in S3 step, after starting defrost cooling cycle system, through the defrost kind of refrigeration cycle time of a setting, defrost temperature controller is closed, and first, second switching device switches to main cooling cycle system.
As a further improvement on the present invention, described direct cooling refrigerator comprises refrigerating chamber, arranges defrost and compensate electric heating tube to defrost to refrigerating chamber in refrigerating chamber.
As a further improvement on the present invention, described refrigeration refrigeration evaporation tube and described defrost refrigerate evaporation tube and are arranged in parallel.
As a further improvement on the present invention, described first switching device is three-way magnetic valve, the entrance point of this three-way magnetic valve is connected with the port of export of described compressor, a port of export of described three-way magnetic valve is connected with the entrance point of described condenser, and another port of export of described three-way magnetic valve is connected with the entrance point of described freezer evaporator.
As a further improvement on the present invention, described second switch device is three-way magnetic valve, the port of export of this three-way magnetic valve is connected with the entrance point of described compressor, an entrance point of described three-way magnetic valve is connected with the described port of export refrigerating evaporation tube that freezes, and the port of export that another entrance point and the described defrost of described three-way magnetic valve refrigerate evaporation tube is connected.
As a further improvement on the present invention, described freezer evaporator and described defrost refrigerate between evaporation tube and are serially connected with defrost capillary.
Compared with prior art, the defrosting system control method of direct cooling refrigerator of the present invention, by the switching of first, second switching device, realizes switching between main cooling cycle system and defrost cooling cycle system, makes refrigerating chamber realize automatic defrosting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing for the present invention in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the structural representation of an embodiment of the present invention direct cooling refrigerator.
Figure 2 shows that the refrigerant flow direction schematic diagram of direct cooling refrigerator of the present invention when freezing.
Figure 3 shows that the refrigerant flow direction schematic diagram of direct cooling refrigerator of the present invention when defrosting.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection scope of the present invention.
As shown in Figure 1, an embodiment of the present invention direct cooling refrigerator comprises main cooling cycle system and defrosting control system.Main cooling cycle system is connected with compressor 1, condenser 2, main kind of refrigeration cycle capillary 3, freezer evaporator 4 and refrigeration refrigeration evaporation tube 5 in turn by refrigerant flow direction.Described defrosting control system comprises defrost cooling cycle system, the first switching device 6 and second switch device 7.Described defrost cooling cycle system, except comprising the compressor 1 shared with main cooling cycle system, freezer evaporator 4, also comprises defrost capillary 8 and defrost refrigeration evaporation tube 9.Described freezer evaporator 4 is arranged in freezer compartment of refrigerator (not shown), described refrigeration refrigeration evaporation tube 5, defrost refrigeration evaporation tube 9 to be arranged in cold compartment of refrigerator (not shown) and to be arranged in parallel, in addition, refrigerator cold-storage indoor are also provided with defrost and compensate electric heating tube 10, in order to carry out defrost to cold compartment of refrigerator.
First switching device 6 connects compressor 1 and condenser 2, freezer evaporator 4, and can select to be connected to start main cooling cycle system or defrost cooling cycle system between condenser 2 with freezer evaporator 4, second switch device 7 connect compressor 1 and refrigerate evaporation tube 5, defrost refrigerate evaporation tube 9, and can to refrigerate between evaporation tube 9 selection connection to start main cooling cycle system or defrost cooling cycle system in refrigeration refrigeration evaporation tube 5, defrost.In the present embodiment, first, second switching device is all three-way magnetic valve, may correspond to called after first three-way magnetic valve and the second three-way magnetic valve.The entrance point of the first three-way magnetic valve is connected with the refrigerant exit end of compressor 1, a port of export of the first three-way magnetic valve is connected with the entrance point of condenser 2, another port of export is connected with the entrance point of freezer evaporator 4, this refrigerant bypass is arranged, when carrying out defrost, the refrigerant flowing to condenser 2 thoroughly can be turned off; The port of export of the second three-way magnetic valve is connected with the refrigerant entrance point of compressor 1, an entrance point of the second three-way magnetic valve is connected with the port of export refrigerating evaporation tube 5, the port of export that another entrance point refrigerates evaporation tube 9 with defrost is connected, when carrying out defrost, can by with the disconnecting refrigerating evaporation tube 5.
Refrigerant when refrigerator normally freezes flows to as shown in Figure 2, first three-way magnetic valve is in and is exported and condenser 2 connected state by compressor 1, and the by-pass line disconnection of freezer evaporator 4 is led to from compressor 1, condenser 2 heat release, freezer evaporator 4 absorbs heat, and the second three-way magnetic valve is in the refrigerant entrance point connected state of refrigeration refrigeration evaporation tube 5 with compressor 1, and leads to the path disconnection of compressor 1 from defrost refrigeration evaporation tube 9, refrigeration refrigeration evaporation tube 5 also absorbs heat, and refrigerator normally freezes; When refrigerator needs defrost, refrigerant circulation as shown in Figure 3, first three-way magnetic valve makes compressor 1 and condenser 2 path disconnect, and make compressor 1 directly and freezer evaporator 4 conducting, simultaneously, second three-way magnetic valve makes defrost refrigerate evaporation tube 9 and compressor 1 conducting, and refrigeration refrigeration evaporation tube 5 is turned off with compressor 1, freezer evaporator 4 heat release, cold-producing medium absorbs heat through defrost capillary 8, defrost refrigeration evaporation tube 9, and freezer compartment of refrigerator is in defrost state.
In concrete control procedure, after refrigerator start, automatically start main cooling cycle system, now the first switching device 6 connects compressor 1 and condenser 2, and second switch device 7 connects compressor 1 and refrigerates evaporation tube 5; According to frosting degree, judge whether to carry out defrost; In this way, then start defrost temperature controller 11, first switching device 6 switches to and connects compressor 1 and freezer evaporator 4 by defrost temperature controller 11, second switch device 7 is switched to connection compressor 1 simultaneously and refrigerates evaporation tube 9 with defrost, start defrost cooling cycle system whereby.In general, the time of main kind of refrigeration cycle time and defrost kind of refrigeration cycle can be set, that is, after main kind of refrigeration cycle carries out a period of time, automatically defrost temperature controller 11 is started, defrost temperature controller 11 controls first, second switching device and switches to the defrost kind of refrigeration cycle stage, after a while, defrost temperature controller 11 is closed, and first, second switching device switches to the kind of refrigeration cycle stage again, and so forth, the automatic defrosting of refrigerating chamber can be realized.
Defrosting of direct cooling refrigerator system control method tool of the present invention has the following advantages: the switching being realized first, second switching device by the opening and closing of defrost temperature controller, and then realize switching between main cooling cycle system and defrost cooling cycle system, refrigerating chamber is made to realize automatic defrosting, in addition, the freezer compartment of refrigerator defrost time is short, and during refrigerating chamber defrost, refrigerating chamber normally can use (because refrigerating chamber when refrigerating chamber defrost also in normal refrigeration).
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.
Claims (8)
1., for a defrosting system control method for direct cooling refrigerator, it is characterized in that, comprise the following steps:
S1: start main cooling cycle system, now the first switching device connects compressor and condenser, and second switch device connects compressor and refrigerates evaporation tube;
S2: according to frosting degree, judges whether to carry out defrost;
S3: in this way, then start defrost temperature controller, and the first switching device switches to and connects compressor and freezer evaporator by this defrost temperature controller, switched to by second switch device to connect compressor and refrigerate evaporation tube with defrost, startup defrost cooling cycle system whereby.
2. the defrosting system control method for direct cooling refrigerator according to claim 1, is characterized in that, in S2 step, sets the main kind of refrigeration cycle time, and the time then, starts defrost temperature controller automatically.
3. the defrosting system control method for direct cooling refrigerator according to claim 2, is characterized in that, in S3 step, after starting defrost cooling cycle system, through the defrost kind of refrigeration cycle time of a setting, defrost temperature controller is closed, and first, second switching device switches to main cooling cycle system.
4. the defrosting system control method for direct cooling refrigerator according to claim 3, it is characterized in that, described direct cooling refrigerator comprises refrigerating chamber, arranges defrost and compensate electric heating tube to defrost to refrigerating chamber in refrigerating chamber.
5. the defrosting system control method for direct cooling refrigerator according to claim 1, is characterized in that, described refrigeration refrigeration evaporation tube and described defrost refrigerate evaporation tube and be arranged in parallel.
6. the defrosting system control method for direct cooling refrigerator according to any one of claim 1 to 5, it is characterized in that, described first switching device is three-way magnetic valve, the entrance point of this three-way magnetic valve is connected with the port of export of described compressor, a port of export of described three-way magnetic valve is connected with the entrance point of described condenser, and another port of export of described three-way magnetic valve is connected with the entrance point of described freezer evaporator.
7. the defrosting system control method for direct cooling refrigerator according to claim 6, it is characterized in that, described second switch device is three-way magnetic valve, the port of export of this three-way magnetic valve is connected with the entrance point of described compressor, an entrance point of described three-way magnetic valve is connected with the described port of export refrigerating evaporation tube that freezes, and the port of export that another entrance point and the described defrost of described three-way magnetic valve refrigerate evaporation tube is connected.
8. the defrosting system control method for direct cooling refrigerator according to claim 7, is characterized in that, described freezer evaporator and described defrost refrigerate between evaporation tube and be serially connected with defrost capillary.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258593.7A CN104251596B (en) | 2013-06-26 | 2013-06-26 | Defrosting system control method for direct cooling refrigerator |
| PCT/CN2013/086326 WO2014205973A1 (en) | 2013-06-26 | 2013-10-31 | Defrosting system control method used in direct-cooling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258593.7A CN104251596B (en) | 2013-06-26 | 2013-06-26 | Defrosting system control method for direct cooling refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104251596A true CN104251596A (en) | 2014-12-31 |
| CN104251596B CN104251596B (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258593.7A Active CN104251596B (en) | 2013-06-26 | 2013-06-26 | Defrosting system control method for direct cooling refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104251596B (en) |
| WO (1) | WO2014205973A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207534A (en) * | 2020-01-09 | 2020-05-29 | 珠海格力电器股份有限公司 | Refrigeration system, refrigeration equipment and control method of refrigeration system |
| CN114935220A (en) * | 2022-05-30 | 2022-08-23 | 郑州凯雪运输制冷设备有限公司 | Refrigerator set for preventing wet compression during defrosting or heating and defrosting or heating method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115840A (en) * | 1974-07-30 | 1976-02-07 | Sanyo Electric Co | JOSOSOCHI |
| JPS60182662U (en) * | 1984-05-15 | 1985-12-04 | シャープ株式会社 | Cooling system |
| CN2543004Y (en) * | 2002-04-23 | 2003-04-02 | 广东科龙电器股份有限公司 | Direct-cooling refrigerator |
| JP2005030606A (en) * | 2003-07-07 | 2005-02-03 | Hitachi Home & Life Solutions Inc | Refrigerator |
| CN103017427A (en) * | 2013-01-10 | 2013-04-03 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
| CN202853235U (en) * | 2012-11-14 | 2013-04-03 | 合肥晶弘电器有限公司 | Direct cooling system capable of realizing semi-automatic defrosting of freezing chamber evaporator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2505941B1 (en) * | 2009-11-25 | 2019-05-15 | Daikin Industries, Ltd. | Refrigeration device for container |
| CN101984312A (en) * | 2010-11-23 | 2011-03-09 | 深圳和而泰智能控制股份有限公司 | Refrigerator defrosting system and method |
-
2013
- 2013-06-26 CN CN201310258593.7A patent/CN104251596B/en active Active
- 2013-10-31 WO PCT/CN2013/086326 patent/WO2014205973A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115840A (en) * | 1974-07-30 | 1976-02-07 | Sanyo Electric Co | JOSOSOCHI |
| JPS60182662U (en) * | 1984-05-15 | 1985-12-04 | シャープ株式会社 | Cooling system |
| CN2543004Y (en) * | 2002-04-23 | 2003-04-02 | 广东科龙电器股份有限公司 | Direct-cooling refrigerator |
| JP2005030606A (en) * | 2003-07-07 | 2005-02-03 | Hitachi Home & Life Solutions Inc | Refrigerator |
| CN202853235U (en) * | 2012-11-14 | 2013-04-03 | 合肥晶弘电器有限公司 | Direct cooling system capable of realizing semi-automatic defrosting of freezing chamber evaporator |
| CN103017427A (en) * | 2013-01-10 | 2013-04-03 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigerating system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207534A (en) * | 2020-01-09 | 2020-05-29 | 珠海格力电器股份有限公司 | Refrigeration system, refrigeration equipment and control method of refrigeration system |
| CN114935220A (en) * | 2022-05-30 | 2022-08-23 | 郑州凯雪运输制冷设备有限公司 | Refrigerator set for preventing wet compression during defrosting or heating and defrosting or heating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104251596B (en) | 2016-08-10 |
| WO2014205973A1 (en) | 2014-12-31 |
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Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Co-patentee after: Haier Zhijia Co., Ltd. Patentee after: haier group corporation Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Co-patentee before: Qingdao Hair Co., Ltd. Patentee before: haier group corporation |
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| CP01 | Change in the name or title of a patent holder |