CN104251596B - Defrosting system control method for direct cooling refrigerator - Google Patents
Defrosting system control method for direct cooling refrigerator Download PDFInfo
- Publication number
- CN104251596B CN104251596B CN201310258593.7A CN201310258593A CN104251596B CN 104251596 B CN104251596 B CN 104251596B CN 201310258593 A CN201310258593 A CN 201310258593A CN 104251596 B CN104251596 B CN 104251596B
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- CN
- China
- Prior art keywords
- defrost
- magnetic valve
- cold preservation
- evaporation tube
- control method
- 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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- 238000001816 cooling Methods 0.000 title claims abstract description 50
- 238000010257 thawing Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008020 evaporation Effects 0.000 claims abstract description 35
- 238000001704 evaporation Methods 0.000 claims abstract description 35
- 238000004321 preservation Methods 0.000 claims abstract description 35
- 238000005057 refrigeration Methods 0.000 claims abstract description 29
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
Abstract
The invention provides a kind of defrosting system control method for direct cooling refrigerator, comprise the following steps: starting main cooling cycle system, now the first switching device connects compressor and condenser, second switch device connects compressor and refrigeration cold preservation evaporation tube；According to frosting degree, it may be judged whether carry out defrost；In this way, then starting defrost temperature controller, the first switching device is switched to connect compressor and freezer evaporator by this defrost temperature controller, second switch device switches to connect compressor and defrost cold preservation evaporation tube, starts defrost cooling cycle system whereby.The present invention switching by first, second switching device, it is achieved switch between main cooling cycle system and defrost cooling cycle system, make refrigerating chamber realize automatic defrosting.
Description
Technical field
The present invention relates to refrigerator art, particularly relate to a kind of defrosting system control method for direct cooling refrigerator.
Background technology
The refrigeration modes of refrigerator has direct-cooled and air-cooled two ways at present.Two kinds of refrigeration modes are respectively arranged with pluses and minuses, the easy frosting of direct cooling refrigerator, and food is difficult to air-dry taint of odour；Wind cooling refrigerator frost-free but food easily air-dries taint of odour.For the frosting problem of direct cooling refrigerator, existing defrost technology typically uses compensation heater strip automatically that cold room is carried out defrost, and refrigerating chamber needs user the most manually to defrost.Manually defrosting is wasted time and energy, and becomes the worry of all multi-users.
Summary of the invention
It is an object of the invention to provide a kind of defrosting system control method for direct cooling refrigerator, the automatic defrosting of refrigerating chamber can be realized.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that a kind of defrosting system control method for direct cooling refrigerator, described direct cooling refrigerator includes cold room, refrigeration cold preservation evaporation tube and the defrost cold preservation evaporation tube of being provided with parallel with one another in cold room, and defrost compensates electric heating tube；Described defrosting system control method comprises the following steps:
S1: starting main cooling cycle system, now the first switching device connects compressor and condenser, second switch device connects compressor and refrigeration cold preservation evaporation tube；
S2: according to frosting degree, it may be judged whether carry out defrost；
S3: in this way, then start defrost temperature controller, first switching device is switched to connect compressor and freezer evaporator by this defrost temperature controller, switch to second switch device connect compressor and defrost cold preservation evaporation tube, start defrost cooling cycle system whereby, meanwhile, described defrost compensates electric heating tube startup heating.
As a further improvement on the present invention, in S2 step, setting 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 set, 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 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, one 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, one entrance point of described three-way magnetic valve is connected with the port of export of described refrigeration cold preservation evaporation tube, and another entrance point of described three-way magnetic valve is connected with the port of export of described defrost cold preservation evaporation tube.
As a further improvement on the present invention, it is serially connected with defrost capillary tube between described freezer evaporator and described defrost cold preservation evaporation tube.
Compared with prior art, the defrosting system control method of the direct cooling refrigerator of the present invention switching by first, second switching device, it is achieved switch between main cooling cycle system and defrost cooling cycle system, make refrigerating chamber realize automatic defrosting.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing for the present invention in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 show the structural representation of an embodiment of the present invention direct cooling refrigerator.
Fig. 2 show the direct cooling refrigerator of the present invention refrigerant flow direction schematic diagram when freezing.
Fig. 3 show the direct cooling refrigerator of the present invention refrigerant flow direction schematic diagram when defrosting.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings.But these embodiments are not limiting as the present invention, structure, method or conversion functionally that those of ordinary skill in the art is made according to these embodiments are all contained in protection scope of the present invention.
As it is shown in figure 1, an embodiment of the present invention direct cooling refrigerator includes 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 tube 3, freezer evaporator 4 and refrigeration cold preservation evaporation tube 5 in turn by refrigerant flow direction.Described defrosting control system includes defrost cooling cycle system, the first switching device 6 and second switch device 7.Described defrost cooling cycle system is except including the compressor 1 shared with main cooling cycle system, in addition to freezer evaporator 4, also including defrost capillary tube 8 and defrost cold preservation evaporation tube 9.Described freezer evaporator 4 is arranged in freezer compartment of refrigerator (not shown), described refrigeration cold preservation evaporation tube 5, defrost cold preservation evaporation tube 9 are arranged in cold compartment of refrigerator (not shown) and are arranged in parallel, additionally, refrigerator cold-storage indoor are additionally provided with defrost and compensate electric heating tube 10, in order to cold compartment of refrigerator is carried out defrost.
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 connects compressor 1 and refrigeration cold preservation evaporation tube 5, defrost cold preservation evaporation tube 9, it is possible to select between cold preservation evaporation tube 5, defrost cold preservation evaporation tube 9 to connect to start main cooling cycle system or defrost cooling cycle system in refrigeration.In the present embodiment, first, second switching device is all three-way magnetic valve, can corresponding named 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, one 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 coolant flowing to condenser 2 thoroughly can be turned off；The port of export of the second three-way magnetic valve is connected with the coolant entrance point of compressor 1, one entrance point of the second three-way magnetic valve is connected with the port of export of refrigeration cold preservation evaporation tube 5, another entrance point is connected with the port of export of defrost cold preservation evaporation tube 9, when carrying out defrost, can be by the disconnecting with refrigeration cold preservation evaporation tube 5.
Coolant when refrigerator normally freezes flows to as shown in Figure 2, first three-way magnetic valve is in and is exported by compressor 1 and condenser 2 connected state, 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 coolant entrance point connected state of refrigeration cold preservation evaporation tube 5 with compressor 1, and leads to the path disconnection of compressor 1 from defrost cold preservation evaporation tube 9, refrigeration cold preservation evaporation tube 5 also absorbs heat, and refrigerator normally freezes；When refrigerator needs defrost, refrigerant cycle is as shown in Figure 3, first three-way magnetic valve makes compressor 1 disconnect with condenser 2 path, and make compressor 1 directly turn on freezer evaporator 4, simultaneously, second three-way magnetic valve makes defrost cold preservation evaporation tube 9 turn on compressor 1, and makes refrigeration cold preservation evaporation tube 5 and compressor 1 turn off, freezer evaporator 4 heat release, cold-producing medium absorbs heat through defrost capillary tube 8, defrost cold preservation evaporation tube 9, and freezer compartment of refrigerator is in defrosting state.
During concrete control, after refrigerator start, automatically starting 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 refrigeration cold preservation evaporation tube 5；According to frosting degree, it may be judged whether carry out defrost；In this way, then start defrost temperature controller 11, first switching device 6 is switched to connect compressor 1 and freezer evaporator 4 by defrost temperature controller 11, second switch device 7 switches to connect compressor 1 and defrost cold preservation evaporation tube 9 simultaneously, starts 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, defrost temperature controller 11 is automatically 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 back switches to the kind of refrigeration cycle stage, and so forth, the automatic defrosting of refrigerating chamber can be realized.
Defrosting of direct cooling refrigerator system control method of the present invention has the advantage that 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, additionally, the freezer compartment of refrigerator defrost time is short, and during refrigerating chamber defrost, cold room can normally use (because cold room also freezes normal) when refrigerating chamber defrost.
It is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should be using description as an entirety, technical scheme in each embodiment can also form, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that.
The a series of detailed description of those listed above is only for illustrating of the feasibility embodiment of the present invention; they also are not used to limit the scope of the invention, and all equivalent implementations or changes made without departing from skill of the present invention spirit should be included within the scope of the present invention.
Claims (6)
1. the defrosting system control method for direct cooling refrigerator, it is characterised in that described direct cooling refrigerator includes cold room, refrigeration cold preservation evaporation tube and the defrost cold preservation evaporation tube of being provided with parallel with one another in cold room, and defrost compensate electric heating tube；Described defrosting system control method comprises the following steps:
S1: starting main cooling cycle system, now the first switching device connects compressor and condenser, second switch device connects compressor and refrigeration cold preservation evaporation tube；
S2: according to frosting degree, it may be judged whether carry out defrost；
S3: in this way, then start defrost temperature controller, first switching device is switched to connect compressor and freezer evaporator by this defrost temperature controller, switch to second switch device connect compressor and defrost cold preservation evaporation tube, start defrost cooling cycle system whereby, meanwhile, described defrost compensates electric heating tube startup heating.
Defrosting system control method for direct cooling refrigerator the most according to claim 1, it is characterised in that in S2 step, sets the main kind of refrigeration cycle time, and the time then, starts defrost temperature controller automatically.
Defrosting system control method for direct cooling refrigerator the most according to claim 2, it is characterised in that in S3 step, after starting defrost cooling cycle system, through the defrost kind of refrigeration cycle time set, defrost temperature controller is closed, and first, second switching device switches to main cooling cycle system.
Defrosting system control method for direct cooling refrigerator the most according to any one of claim 1 to 3, 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, one 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.
Defrosting system control method for direct cooling refrigerator the most according to claim 4, 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, one entrance point of described three-way magnetic valve is connected with the port of export of described refrigeration cold preservation evaporation tube, and another entrance point of described three-way magnetic valve is connected with the port of export of described defrost cold preservation evaporation tube.
Defrosting system control method for direct cooling refrigerator the most according to claim 5, it is characterised in that be serially connected with defrost capillary tube between described freezer evaporator and described defrost cold preservation evaporation tube.
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 CN104251596A (en) | 2014-12-31 |
| CN104251596B true CN104251596B (en) | 2016-08-10 |
Family
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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) |
Families Citing this family (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 |
| CN114935220B (en) * | 2022-05-30 | 2024-05-24 | 郑州凯雪运输制冷设备有限公司 | Refrigerator set capable of 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9541317B2 (en) * | 2009-11-25 | 2017-01-10 | Daikin Industries, Ltd | Container refrigeration system |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014205973A1 (en) | 2014-12-31 |
| CN104251596A (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 Smart Home Co., Ltd. Patentee after: HAIER Group Corp. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Co-patentee before: QINGDAO HAIER JOINT STOCK Co.,Ltd. Patentee before: HAIER Group Corp. |