CN1934401A - A cooling device and its control method - Google Patents
A cooling device and its control method Download PDFInfo
- Publication number
- CN1934401A CN1934401A CNA2005800074216A CN200580007421A CN1934401A CN 1934401 A CN1934401 A CN 1934401A CN A2005800074216 A CNA2005800074216 A CN A2005800074216A CN 200580007421 A CN200580007421 A CN 200580007421A CN 1934401 A CN1934401 A CN 1934401A
- Authority
- CN
- China
- Prior art keywords
- fresh
- keeping chamber
- defrost
- door
- 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.)
- Granted
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/006—Defroster control with electronic control circuits
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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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25B2600/23—Time delays
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
This invention relates to a cooling device (1) which enables a decrease of the energy consumption cost of the user as a consequence of a decrease in the number of defrost procedures which is performed by taking into consideration the temperature of freshfood compartment (T1) during the defrost process taking place when the doors (4) are closed.
Description
Technical field
The present invention relates to a kind of cooling device and control method thereof, raise the efficiency by avoiding unnecessary at closing time defrosting.
Background technology
Because the evaporimeter in the cooling system has the coldest surface in the inside of the chamber at place, the humid air in the environment causes the evaporator surface frosting.The frost of evaporator surface accumulation need regularly be melted by defrost process.The cycle of defrost process is by the quantity based on frost on the evaporimeter for example, the defrosting control algolithm decision of the parameter that the switching frequency of refrigerator doors or energy consume; Or defrosting occurs in the predetermined constant time range.Cooling effectiveness avoids frosting to improve by defrost process; Yet, defrost operation energy consumption height, the increase that energy consumption increases consumer's expense.Best defrosting number of times and the time function cut down the consumption of energy.
The long-pending frost amount of evaporator surface directly is proportional to the humidity of the air that circulates in cooling system.When humidity was high, long-pending frost increased.Open if refrigerator doors keeps long-time, because there is not air to enter in the refrigerator from the outside, the humidity that circulates in the air continues to descend.In this case, the long-pending frost of evaporimeter needs the longer time.Energy consumption when closing for a long time in order to reduce a maintenance, different Defrost methods are suggested.
In the U.S. Pat 4297852, when refrigerator doors was not often opened, second Defrost method was to introduce when making the defrosting decision in the time that is held open according to door with the ratio that keeps the shut-in time.
In the European patent application EP 1070925, when refrigerator doors kept closing for a long time, second Defrost method was based on the difference between evaporator temperature and the refrigerator inside capacity and makes when defrosting determines and introducing.
Summary of the invention
The objective of the invention is to realize a kind of cooling system and control method thereof, defrosting time is set to reduce user's energy consumption cost.
Description of drawings
Accompanying drawing has been described cooling device and the control method thereof that is designed in order to satisfy this purpose, wherein:
Fig. 1 is the schematic diagram of cooling device.
Fig. 2 is the block diagram of cooling device control method.
Fig. 3 and 4 is flow charts of another example of cooling device control method.
The parts of describing among the figure are numbered separately and are listed.
The 1-cooling device
The 2-fresh-keeping chamber
The 3-refrigerating chamber
The 4-door
The 5-compressor
The 6-evaporimeter
The 7-defrost unit
The 8-thermometer
The 9-control panel
The 10-memory
The 11-door switch
The specific embodiment
Cooling device (1), frost-free refrigerator preferably, comprise the fresh-keeping chamber (2) that stores F﹠B, food is frozen the refrigerating chamber (3) of storage, one or more doors (4) that can lead to chamber (2 and 3), help to implement the compressor (5) of cool cycles, by absorbing the evaporimeter (6) of heat energy cooling cooling device (1) internal capacity, remove the defrost unit (7) of the long-pending frost on the evaporimeter (6), the thermometer (8) of energy measurement fresh-keeping chamber (6) internal temperature, one or more door switch (11) of when door is opened, opening and when door is closed, regaining, determine the defrost unit control panel of (7) cycle of operation (9) based on constant or variable defrosting algorithm, if and door (4) is not in the end opened after a defrost process, the cycle of operation that control panel (9) postpones defrost unit (7) surpasses default limiting temperature value up to the temperature of fresh-keeping chamber (2) in the default stand-by period, and stores the algorithm that for example defrosts, the memory (10) of information such as next defrosting time.
Control panel (9) writes down the state of the door (4) of any chamber (2 and 3) by the position of door switch (11) after any defrost process that defrost unit (7) is implemented.The defrosting time of being determined by the defrosting algorithm subsequently is stored in memory (10) lining.If door (4) is opened before defrosting time subsequently, that is to say door switch (11) when opening, defrost process is implemented at Preset Time.If door (4) keeps closing, that is to say that door switch (11) always keeps retracted state, defrost process is delayed by control panel (9).Continuous control thermometer (8) collection information; The temperature value if the temperature of fresh-keeping chamber (2) does not overstep the extreme limit does not carry out defrost process.If temperature value of overstepping the extreme limit of fresh-keeping chamber (2) and keep certain hour on limiting value, control panel (9) start defrost unit (7) and carry out defrost process.The longer cycle of temperature value of overstepping the extreme limit of fresh-keeping chamber (2) is that upward the indication and the expression of the quantity increase of frost need defrost process to an evaporimeter (6).
To belong to cooling device of the present invention (1) control method in order describing, to use following symbol:
Zd: defrosting time subsequently
T1: the temperature of fresh-keeping chamber (2)
Ts: the limiting temperature value of fresh-keeping chamber (2)
Z1: the temperature of fresh-keeping chamber remains on the time interval on the limiting temperature value (Ts) of fresh-keeping chamber (2)
Zs: the limit heating cycle of fresh-keeping chamber (2)
Z2: defrost additional delay time
Z3: door (4) is the minimum interval between two defrost process when closing
The limiting temperature value (Ts) of fresh-keeping chamber (2), the limit heating cycle (zs) of fresh-keeping chamber (2), defrost additional delay time (z2) and door (4) when closing the minimum interval (z3) between two defrost process be that the producer presets and be recorded in memory (10) lining.
The control of the defrost process of cooling device (1) is as follows:
--along with defrost process finish calculating defrosting time (zd) (101) subsequently,
--whether open by door (4) and to control (102),
--if door is unlocked, and then waits for the defrosting time (zd) (103) up to subsequently,
--operation defrost unit (7) is carried out defrost process (106),
--return the step (101) of calculating defrosting time subsequently,
--if door (4) is not opened, and compares (104) by the temperature (T1) of the definite fresh-keeping chamber of thermometer (8) and the limiting temperature value (Ts) of fresh-keeping chamber (2),
--if the temperature (T1) of fresh-keeping chamber is lower than the limiting temperature value (Ts) of fresh-keeping chamber (2), then returns by door (4) whether close the step of controlling (102),
--if the temperature (T1) of fresh-keeping chamber (2) is higher than the limiting temperature value (Ts) of fresh-keeping chamber (2), then the temperature of fresh-keeping chamber compares (105) at the limit heating cycle (zs) that remains on the time interval (z1) and fresh-keeping chamber (2) on the limiting temperature value (Ts) of fresh-keeping chamber (2)
--if the temperature of fresh-keeping chamber remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2) and is lower than the limit heating cycle (zs) of fresh-keeping chamber (2), then returns step (102), and whether close by door (4) and control,
--if the temperature of fresh-keeping chamber remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2) and is higher than the limit heating cycle (zs) of fresh-keeping chamber (2), and then move defrost unit (7) and carry out defrosting (106),
--return the step (101) (accompanying drawing 2) of calculating defrosting time subsequently,
In the another embodiment of the present invention, for fear of defrosting continuously takes place in a circulation, the minimum interval (z3) that produces in the required continuous defrost process when closing at door (4) is determined.When door (4) is in the closed position, switch (11) is depressed but still opens slightly, or the food of the hypothesis heat cooling device (1) of packing into, or owing to fault (gas leakage etc.) is cooled off not enough, because the temperature (T1) of fresh-keeping chamber always is on the limiting temperature value (Ts) of fresh-keeping chamber (2), continuous defrost cycle can occur.For fear of this situation, except that above-mentioned steps, the time interval (z1) on the temperature of fresh-keeping chamber remains on the limiting temperature value (Ts) of fresh-keeping chamber (2) with compare the step of (105) limit heating cycle (zs) of fresh-keeping chamber (2) after, carry out following steps:
--if the temperature of fresh-keeping chamber (2) remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2) and is higher than the limit heating cycle (zs) of fresh-keeping chamber (2), check and whether to have passed through door (4) minimum interval (z3) (201) in two continuous defrost process when closing
If--the minimum interval (z3) in two defrost process of door (4) when closing is not finished, and then returns by door (4) whether close the step of controlling (102),
If--the minimum interval (z3) in two defrost process of door (4) when closing is finished, and then move defrost unit (7) and carry out defrosting (106) (accompanying drawing 3),
In the another embodiment of the present invention, whether opening the step (102) controlled afterwards, be opened if find door (4) by door (4)
--check whether defrosting time (zd) subsequently reaches (301),
--if do not reach defrosting time (zd) subsequently, process lag is up to next defrosting time (zd) (103),
--if reach next defrosting time (zd), process lag is to defrost additional delay time (z2) (302),
--operation defrost unit (7) is carried out defrosting (106) (accompanying drawing 4),
For cooling device (1), owing to needing only the situation generation that door (4) maintenance is closed does not just have humidity to increase, the long-pending frost on the evaporimeter (6) occur in a longer time interval of the common service condition of ratio with needing to defrost.When door (4) when being closed, carry out the temperature (T1) that defrost process is considered fresh-keeping chamber, to such an extent as to reduce defrost process and user's energy consumption cost reduces.
Claims (4)
1, a kind of cooling device (1), comprise the fresh-keeping chamber (2) that stores F﹠B, food is frozen the refrigerating chamber (3) of storage, one or more doors (4) that can lead to chamber (2 and 3), can carry out the compressor (5) of cool cycles, by absorbing the evaporimeter (6) of heat energy cooling cooling device (1) internal capacity, remove the defrost unit (7) of the long-pending frost on the evaporimeter (6), the thermometer (8) of energy measurement fresh-keeping chamber (6) internal temperature, one or more door switch (11) of opening when door is opened and regaining when door is closed are stored the algorithm that for example defrosts, the memory (10) of information such as next defrosting time; And be characterised in that; Control panel (9) is determined the cycle of operation of defrost unit (7) based on constant or variable defrosting algorithm, if door (4) is not in the end opened after a defrost process, the cycle of operation that postpones defrost unit (7) surpasses default limiting temperature value up to the temperature of fresh-keeping chamber (2) in the default stand-by period.
2, the control method of cooling device as claimed in claim 1 (1), its step comprise finishes decision defrosting time (zd) (101) subsequently along with defrost process; Whether control gate (4) opens (102); If door (4) is unlocked, then postpone this process up to subsequently defrosting time (zd) (103); Operation defrost unit (7) is carried out defrost process (106); Return the step (101) of calculating defrosting time subsequently; If door (4) is not opened, then relatively by the temperature (T1) of the definite fresh-keeping chamber of thermometer (8) and the limiting temperature value (Ts) (104) of fresh-keeping chamber (2); If the temperature of fresh-keeping chamber (T1) is lower than the limiting temperature value (Ts) of fresh-keeping chamber (2), then return the step (102) whether control gate (4) closes; If the temperature of fresh-keeping chamber (T1) is higher than the limiting temperature value (Ts) of fresh-keeping chamber (2), the temperature that then compares (105) fresh-keeping chamber remains on the limit heating cycle (zs) of the time interval (z1) and fresh-keeping chamber (2) on the limiting temperature value (Ts) of fresh-keeping chamber (2); Be lower than the limit heating cycle (zs) of fresh-keeping chamber (2) if the temperature of fresh-keeping chamber remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2), then return the step (102) whether control gate (4) closes; Be higher than the limit heating cycle (zs) of fresh-keeping chamber (2) if the temperature of fresh-keeping chamber remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2), then move defrost unit (7) and carry out defrosting (106); Return the step (101) (accompanying drawing 2) of calculating defrosting time subsequently.
3, control method as claimed in claim 2, the time interval (z1) on the temperature of fresh-keeping chamber remains on the limiting temperature value (Ts) of fresh-keeping chamber (2) with compare the step of (105) limit heating cycle (zs) of fresh-keeping chamber (2) after, may further comprise the steps; Be higher than the limit heating cycle (zs) of fresh-keeping chamber (2) if the temperature of fresh-keeping chamber (2) remains on time interval (z1) on the limiting temperature value (Ts) of fresh-keeping chamber (2), inspection door (4) when closing the minimum interval (z3) in two continuous defrost process whether finish (201); When closing,, then return the step (102) whether control gate (4) closes at door (4) if the minimum interval in the defrost process (z3) is not finished; ,, then move defrost unit (7) and carry out defrosting (106) when closing at door (4) if the minimum interval in the defrost process (z3) is finished.
4, as claim 2 or 3 described control methods, carrying out the step (102) whether control gate (4) closes, and after finding that door (4) has been opened, may further comprise the steps: whether control defrosting time (zd) subsequently reaches (301); If do not reach defrosting time (zd) subsequently, postpone this process up to next defrosting time (zd) (103); If reach next defrosting time (zd), postpone (302) this process to defrost additional delay time (z2); Operation defrost unit (7) is carried out defrosting (106).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR200400456 | 2004-03-08 | ||
| TR2004/00456 | 2004-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1934401A true CN1934401A (en) | 2007-03-21 |
| CN100460788C CN100460788C (en) | 2009-02-11 |
Family
ID=34961550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800074216A Expired - Fee Related CN100460788C (en) | 2004-03-08 | 2005-03-08 | A cooling device and its control method |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1730457B1 (en) |
| KR (1) | KR100780101B1 (en) |
| CN (1) | CN100460788C (en) |
| RU (1) | RU2337283C2 (en) |
| TR (1) | TR200604831T1 (en) |
| WO (1) | WO2005088215A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873447A (en) * | 2019-11-29 | 2020-03-10 | 深圳麦克维尔空调有限公司 | Defrosting control method, device and equipment of refrigeration air conditioner |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2375198B1 (en) * | 2010-04-12 | 2014-07-30 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | A method for defrosting process |
| ITTO20111240A1 (en) * | 2011-12-30 | 2013-07-01 | Indesit Co Spa | METHOD AND DEVICE FOR CONTROL OF THE DEFROSTING PHASE OF A REFRIGERANT APPLIANCE AND A REFRIGERANT APPLIANCE THAT IMPLEMENTS THIS METHOD |
| PL3903049T3 (en) | 2018-12-25 | 2024-01-03 | Arçelik Anonim Sirketi | A cooling device with reduced energy consumption |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4297852A (en) * | 1980-07-17 | 1981-11-03 | General Electric Company | Refrigerator defrost control with control of time interval between defrost cycles |
| CN1028798C (en) * | 1987-05-18 | 1995-06-07 | 罗斯蒙德公司 | Modular pressure instrument |
| US5483804A (en) * | 1994-03-28 | 1996-01-16 | Sanyo Electric Co., Ltd. | Defrost control apparatus for refrigerator |
| CN1034987C (en) * | 1994-11-04 | 1997-05-28 | 广西大学 | Iron cage dam (or dyke) technology for purification of waste water |
| EP1121564A1 (en) * | 1998-10-05 | 2001-08-08 | Powerpulse Holding AG | Light element having a translucent surface |
| US6260365B1 (en) * | 2000-01-07 | 2001-07-17 | Traulsen & Company, Inc. | Control system and related methods for refrigeration and freezer units |
-
2005
- 2005-03-08 EP EP05708972.4A patent/EP1730457B1/en active Active
- 2005-03-08 CN CNB2005800074216A patent/CN100460788C/en not_active Expired - Fee Related
- 2005-03-08 WO PCT/IB2005/050846 patent/WO2005088215A1/en active Application Filing
- 2005-03-08 KR KR1020067018293A patent/KR100780101B1/en not_active IP Right Cessation
- 2005-03-08 TR TR2006/04831T patent/TR200604831T1/en unknown
- 2005-03-08 RU RU2006135377/12A patent/RU2337283C2/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873447A (en) * | 2019-11-29 | 2020-03-10 | 深圳麦克维尔空调有限公司 | Defrosting control method, device and equipment of refrigeration air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100780101B1 (en) | 2007-11-30 |
| KR20060126808A (en) | 2006-12-08 |
| EP1730457A1 (en) | 2006-12-13 |
| EP1730457B1 (en) | 2017-06-28 |
| CN100460788C (en) | 2009-02-11 |
| RU2337283C2 (en) | 2008-10-27 |
| WO2005088215A1 (en) | 2005-09-22 |
| TR200604831T1 (en) | 2007-01-22 |
| RU2006135377A (en) | 2008-04-20 |
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