CN101893360A - Control is used for the method for the Icemaker assembly of refrigerator - Google Patents
Control is used for the method for the Icemaker assembly of refrigerator Download PDFInfo
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- CN101893360A CN101893360A CN2010102432783A CN201010243278A CN101893360A CN 101893360 A CN101893360 A CN 101893360A CN 2010102432783 A CN2010102432783 A CN 2010102432783A CN 201010243278 A CN201010243278 A CN 201010243278A CN 101893360 A CN101893360 A CN 101893360A
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- ice
- temperature
- plunger
- pallet
- water
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/22—Construction of moulds; Filling devices for moulds
- F25C1/24—Construction of moulds; Filling devices for moulds for refrigerators, e.g. freezing trays
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
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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
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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
- F25B2600/11—Fan speed control
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/18—Producing ice of a particular transparency or translucency, e.g. by injecting air
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
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- 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)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides the method that a kind of control is used for the Icemaker assembly of refrigerator.Said method comprising the steps of: the initialization ice-make mode; Ice groove in being formed at pallet supplies water, and described pallet is used for ccontaining plunger; Make water contact described plunger, from water, to remove heat; Intermittently operated is arranged on the heater at described pallet place, is higher than icing temperature so that described pallet is maintained; And control is used to heat the operation that the ice of described plunger ejects heater, to reduce the temperature of described plunger gradually; Wherein cooling blower is set to operation till the ice making operation is finished.According to the method, can in remaining the ice making space that is lower than 0 ℃, temperature prepare transparency ice.
Description
The application be that March 10, application number in 2009 are 200910126958.4 the applying date, denomination of invention divides an application for the application of " control is used for the method for the Icemaker assembly of refrigerator ".
Technical field
The present invention relates to the method that a kind of control is used for the Icemaker assembly of refrigerator, in order to the preparation transparency ice.
Background technology
Refrigerator is to be used for the household electrical appliance of food storage under refrigeration or freezing environment.
Recently, various refrigerators flood the market.The example of refrigerator recently comprises: the clamshell doors refrigerator, and wherein refrigerating chamber and refrigerating chamber are arranged on left side and right side; Following refrigerating chamber refrigerator, wherein refrigerating chamber is arranged on the refrigerating chamber top; And the overhead type refrigerator, wherein refrigerating chamber is arranged on the refrigerating chamber below.
In addition, the many refrigerators that enter the market recently have such structure: allow the user need not open main refrigerating-chamber door and come access to be placed on the food or the beverage of refrigerating chamber inside by standby access site.Be provided with compressor, condenser and swelling part in refrigerator inside, and the back of refrigerator main body is provided with evaporimeter, these parts are as the kind of refrigeration cycle parts of refrigerator.
In addition, can Icemaker assembly be set in refrigerator inside.This Icemaker assembly can be installed in refrigerating chamber, refrigerating chamber, refrigerating chamber door or the refrigerating-chamber door.
In order to satisfy consumer's demand growing to transparency ice, people have done a large amount of research to the Icemaker assembly that transparency ice can be provided.
Summary of the invention
The method that the embodiment disclosed herein provides a kind of control to be used for the Icemaker assembly of refrigerator, described method can prepare transparency ice.
The embodiment disclosed herein provides various control to be used for the method for the Icemaker assembly of refrigerator.
In one embodiment, provide a kind of control to be used for the method for the Icemaker assembly of refrigerator, said method comprising the steps of: selected ice-make mode; Ice groove in being formed at pallet supplies water, the plunger that is configured to absorb heat from water with submergence; Intermittently operated is arranged on the heater at described pallet place, described pallet is maintained the temperature that is higher than freezing temperature; And control the operation that is configured to provide the cooling blower that cools off air, to cool off described plunger.
In another embodiment, provide a kind of control to be used for the method for the Icemaker assembly of refrigerator, said method comprising the steps of: selected ice-make mode; Ice groove in being formed at pallet supplies water, the plunger that is configured to absorb heat from water with submergence; Intermittently operated is arranged on the heater at described pallet place, described pallet is maintained the temperature that is higher than freezing temperature; And control is configured to heat the operation that the ice of described plunger ejects heater, to reduce the temperature of described plunger in time.
In yet another embodiment, provide a kind of control to be used for the method for the Icemaker assembly of refrigerator, said method comprising the steps of: selected ice-make mode; Ice groove in being formed at pallet supplies water, the plunger that is configured to absorb heat from water with submergence; Intermittently operated is arranged on the heater at described pallet place, described pallet is maintained the temperature that is higher than freezing temperature; And control is configured to heat the co-operating that the ice of described plunger ejects heater and is configured to provide the cooling blower of cooling air, to reduce the temperature of described plunger in time.
Method according to the control Icemaker assembly can prepare transparency ice in temperature remains the ice-making compartment that is lower than 0 ℃.
That is, in ice making operating period, pallet maintains and is higher than 0 ℃ temperature, so that water freezes slowly, and guarantees that water freezes along the direction that begins from described plunger towards the inner surface of described ice groove.Therefore, when water freezed, before air was trapped within the ice, the air that is dissolved in the water can be overflowed from water.Therefore, the ice of preparation is transparent.
In addition, in ice making operating period, by the control cooling blower with freeze the temperature of the adjustable water saving of temperature of plunger, thereby the bubble that comprises in the water can be overflowed in ice making operating period.Therefore can easily prepare transparency ice.
One or more embodiments of the detail of the present invention in accompanying drawing and following description, have been illustrated.Further feature is conspicuous in specification, accompanying drawing and claims.
Description of drawings
Fig. 1 and Fig. 2 are the stereogram that illustrates according to the Icemaker assembly structure that is used for refrigerator of the embodiment of the invention.
Fig. 3 is the stereogram that illustrates according to the Icemaker assembly of the embodiment of the invention.
Fig. 4 is the stereogram of the Icemaker assembly before ice is transferred to container just that illustrates according to the embodiment of the invention.
Fig. 5 is the stereogram that illustrates according to the pallet of the Icemaker assembly of the embodiment of the invention.
Fig. 6 is the cutaway view for preparing the process of transparency ice in Icemaker assembly that illustrates according to the embodiment of the invention.
Fig. 7 is the flow chart of description according to the pallet method of temperature of the control Icemaker assembly of the embodiment of the invention.
Fig. 8 is for describing the flow chart for preparing the method for transparency ice according to the use Icemaker assembly of the first embodiment of the present invention.
Fig. 9 prepares the flow chart of the method for transparency ice for description use Icemaker assembly according to a second embodiment of the present invention.
Figure 10 prepares the flow chart of the method for transparency ice for the use Icemaker assembly of describing a third embodiment in accordance with the invention.
Figure 11 is the view of plunger temperature when carrying out the method for control Icemaker assembly that illustrates according to the embodiment of the invention.
The specific embodiment
Hereinafter will describe the Icemaker assembly that is used for refrigerator in detail according to embodiments of the invention and with reference to accompanying drawing.
In the following description, Icemaker assembly can be installed on the refrigerating chamber door.Yet Icemaker assembly also can be installed on other position such as refrigerating chamber, refrigerating chamber and refrigerating-chamber door, and these installation sites are still in protection scope of the present invention.
Fig. 1 and Fig. 2 are the stereogram that illustrates according to the Icemaker assembly structure that is used for refrigerator of the embodiment of the invention.
Referring to Fig. 1 and Fig. 2, the Icemaker assembly 20 of exemplary embodiment can be installed on the back side of door 10, and the back side of door 10 can be recessed into the ice making space 11 that holds Icemaker assembly 20 with formation.Can form cooling air supply hole 111 (Fig. 2) in a side in ice making space 11, so that the cooling air is able to flow into from the evaporimeter (not shown), and can form 112 (as shown in Figure 2) of cooling air tap in the above-mentioned side in ice making space 11, so that the cooling air in ice making space 11 is flow back into evaporimeter.
Detailed says, Icemaker assembly 20 can be installed in the top in ice making space 11, and container 30 can be installed below Icemaker assembly 20, to store the ice by Icemaker assembly 20 preparations.Icemaker assembly 20 can be covered (ice making cover) 31 protections by ice making.These ice making lid 31 also bootable ice that separate from Icemaker assembly 20 make ice directly arrive in the container 30 along passage.
Fig. 3 is the stereogram that illustrates according to the Icemaker assembly of the embodiment of the invention, and Fig. 4 is the stereogram of the Icemaker assembly before ice is transferred to container 30 just that illustrates according to the embodiment of the invention.
With reference to Fig. 3 and Fig. 4, Icemaker assembly 20 can comprise: pallet 21, have a plurality of ice grooves (ice recess) 211, and be used for the reservation shape ice making; A plurality of fins (fin) 24 are stacked in the top of pallet 21, and can vertically and rotatably move; A plurality of plungers 23 are configured to pass a plurality of fins 24 and are inserted in a plurality of ice grooves 211; Ice ejects heater (ice ejecting heater) 25, can be arranged to the fin of the foot of a plurality of fins 24; Gripper shoe 27 is configured to support ice and ejects heater 25, remaining a plurality of fins 24 and plunger 23 as a unit; Water supply component 26 is arranged on an end of pallet 21; And control box 28, be arranged on the other end of pallet 21.
Detailed says, in the bottom of pallet 21 the heater (not shown) can be installed, and is being higher than icing temperature with the temperature maintenance with pallet 21.Can extend a support bar 271 from the front end of gripper shoe 27, and can articulated elements 272 be set at an end of gripper shoe 27.As shown in Figure 4, in ice making operating period, form the corresponding ice cube I of shape of shapes and ice groove 211 around plunger 23.
Inside at control box 28 is provided with the cam 29 that is connected with CD-ROM drive motor.This drive motor cam 29 rotatablely moves.Articulated elements 272 can be connected to cam 29, so that articulated elements 272 can lifting and rotation by the rotation of cam 29.Ice ejects heater 25 can have plate-like shape, but and contacting plunger 23.As selection, ice can be ejected heater 25 embedding (bury) in plunger 23.Gripper shoe 27 can be used for closing top (open-top) (see figure 3) of the opening of pallet 21, with by offering ice making space 11 and cooling off the water that offers pallet 21 indirectly around the cooling air that fin 24 and plunger 23 flow.
Hereinafter will describe the ice making operation of Icemaker assembly 20 and eject the ice operation.
At first, can operate the heater that is attached to pallet 21, be higher than 0 ℃ temperature so that pallet 21 is maintained, thereby in Icemaker assembly 20, prepare transparency ice.
In the prior art, when the cooling air that provides when evaporimeter made the water quick freezing, the air that is dissolved in the water can not be overflowed from water before water freezes.Therefore, when water when being trapped in gas in the water and together freezing, the ice that obtains is opaque.
Yet in the Icemaker assembly 20 of disclosed exemplary embodiment, the temperature of pallet 21 can maintain and be higher than icing temperature, so that water freezes slowly.Thereby the air in the water can be overflowed from water before water freezes fully.Therefore, can obtain the transparency ice that the user likes.
In case plunger 23 is inserted in the ice groove 211 of pallet 21, just water is offered pallet 21, and after water supply is finished, begin to freeze operation.By provide the cooling air to begin the ice making operation to ice making space 11.Then, by carrying out convection heat transfer' heat-transfer by convection, make the temperature of fin 24 drop to and be lower than freezing temperature with the cooling air that provides.By carrying out conduction heat transfer with fin 24, the temperature of plunger 23 also is brought down below freezing temperature.The part that plunger 23 inserts in the ice groove 211 is submerged in the water.Therefore, water is from beginning to freeze gradually from plunger 23 nearest zones, and the frozen region of water becomes and is attached on (attach) plunger 23.Then, water begins from outwards further freezing towards the zone near the inner surface of ice groove 211 with the nearest zone of plunger 23.
After water freezed fully, rotating cam 29 was shifted out from ice groove 211 with the ice cube that forms with plunger 23 and on plunger 23 straight up.In the exemplary embodiment, after groove 211 is shifted out fully from ice with ice cube I, be further rotated cam 29 so that plunger 23 is rotated to predetermined angle, thereby ice cube I can skid off and drop into the ice container 30 from plunger 23.
Can determine whether water is finished by several different methods freezes.First method is included in water the passing of monitoring time when freezing.If after water freezes beginning, passed through scheduled time amount, then can determine to have finished and freeze.
Another kind is determined to finish the method for freezing and is comprised: by cam 29 plunger 23 is risen to and leave ice groove 211, and detect the remaining water yield in the ice groove 211.When after freezing to begin to have passed through scheduled time amount, plunger 23 can rise to predetermined altitude.This predetermined altitude can be that on described height, the ice that is attached to plunger 23 does not also separate from ice groove 211 fully.In case promote plunger 23, just can detect the remaining water yield in the ice groove 211.For example, can use the level sensor (not shown) that is installed on the pallet 21 to detect the remaining water yield of not freezing in the ice groove 211.If the remaining water yield of not freezing is equal to or less than scheduled volume in the ice groove 211, can determines to have finished and freeze.On the other hand, if the remaining water yield of not freezing can be moved down into its initial position with plunger 23, to continue to freeze water more than scheduled volume in the ice groove 211.Hereinafter will level sensor be described with reference to accompanying drawing.
As mentioned above, water finish freeze after, rotatable cam 29 shifts out ice groove 211 straight up with the ice cube that forms with plunger 23 and on plunger 23.After ice groove 211 shifts out fully, can be further rotated cam 29 at ice cube I so that plunger 23 rotations.More particularly, can be by cam 29 rotation articulated elements 272, so that plunger 23 is rotated to predetermined angular.In case plunger 23 is rotated to as shown in Figure 4 predetermined angular, just can move ice and eject heater 25.When ice ejected heater 25 operations, the temperature of plunger 23 raise, and therefore makes ice cube I and plunger 23 be separated.Then, isolated ice cube I can fall into container 30.
Fig. 5 is the stereogram that illustrates according to the pallet 21 of the Icemaker assembly 20 of the embodiment of the invention.
As shown in Figure 5, a plurality of ice grooves 211 are arranged in the pallet 21 of Icemaker assembly 20.Between ice groove 211, form raceway groove (groove) 213 with desired depth.Water can flow between adjacent ice groove 211 via raceway groove 213.The bottom of raceway groove 213 is spaced from each other with the bottom of ice groove 211.
Can form guiding piece (guide) 212 in the end of pallet 21, will guide to pallet 21 and ice groove 211 from the water that water supply component 26 provides.Water can be offered the ice groove 211 of the most close guiding piece 212, and water can flow to the ice groove 211 away from guiding piece 212 gradually.
Can ice groove 211, away from a side of guiding piece 212, for example ice side groove, that be positioned at the relative end of pallet 21 and guiding piece 212, installation level sensor 40.In addition, can be at a side mounting temperature sensor 50 of pallet 21.This temperature sensor 50 can provide and feed back to the subsystem (subsystem) that is suitable for pallet 21 is maintained steady temperature.Can be at pallet 21 place's tray heater (not shown).This pallet heater can embedded mode or adhering mode be installed in pallet 21 places.
Fig. 6 is the cutaway view for preparing the process of transparency ice in Icemaker assembly that illustrates according to the embodiment of the invention.
With reference to Fig. 6, in the exemplary embodiment, can be in the pallet 21 of Icemaker assembly 20 tray heater 60.After plunger 23 is moved down into preset position, fill water in the ice groove 211.As selection, can in ice groove 211, fill water and again plunger 23 has been moved down into preset position afterwards.
In case plunger 23 is in correct position, and the ice groove has held enough water yields, then ice making operation beginning.By cooling air cooling fins 24, promptly cool off air by circulating so that pallet 21 and plunger 23 are cooled under the freezing temperature with fin 24 convective heat exchange.When the temperature of plunger 23 is reduced under the freezing temperature, around plunger 23, form ice.At this moment, operation pallet heater 60 is being higher than 0 ℃ with the temperature maintenance with pallet 21.According to exemplary embodiment, the temperature of pallet 21 can maintain in 1 ℃ to 2 ℃ the scope.According to Henry's law, along with the rising of the temperature of water, the solubility of gas in water descends.Therefore, by operation pallet heater 60, when freezing, water the air that has in the water can be removed from water.Simultaneously, on the surface of plunger, generate ice.
During ice making was handled, ice outwards formed from the surface of plunger 23, and the temperature of pallet 21 remains on and is higher than icing temperature.Therefore, ice can not be formed on the inner surface place of pallet 21.In other words, ice can not be formed on the inner surface of ice groove 211.Therefore, when finishing the ice making operation, can in ice groove 211, remain the water of scheduled volume.In one embodiment, the water of the remaining not frozen state just inner surface with ice groove 211 is adjacent, thereby is convenient to remove ice cube from pallet 21.
Other method is also included within protection scope of the present invention.For example, in another approach, can control the cooling blower (not shown) that is configured to the cooling air is provided to 11 inside, ice making space.In another method, can operate and control the ice ejection heater 25 and the cooling blower that are configured to heat plunger 23 simultaneously.Hereinafter be filled in the temperature of the water in the pallet 21 to prepare the method for transparency ice with reference to flow chart description control.
Fig. 7 is the flow chart of description according to the pallet method of temperature of the control Icemaker assembly of the embodiment of the invention.
Referring to Fig. 7, can be by user or control module (for example with reference to Fig. 3 Reference numeral 45) beginning ice-make mode, wherein said control module relevant with refrigerator in the ordinary course of things (operation S11) or be correlated with Icemaker assembly especially.
By example, when the needs automatic ice-making is operated (for example ought detect ice container 30 in the ice amount after a little while), can be by control module 45 initialization ice-make mode.
After ice-make mode begins, perhaps even under the situation that ice-make mode continues always, control module 45 from temperature sensor (temperature sensor 50 for example shown in Figure 5) received signal to determine the temperature of pallet 21.Control module 45 can determine that whether the temperature T of pallet 21 is at predetermined temperature T
0The place.For example, control module 45 can determine whether the pallet temperature T is below or above predetermined temperature T
0(operation S12).
If the pallet temperature T is lower than predetermined temperature T
0, then can open pallet heater 60 with heated tray 21 (operation S13).On the other hand, if the pallet temperature T is equal to or higher than predetermined temperature T
0, then can close pallet heater 60 (operation S14).At this moment, close pallet heater 60 and comprise the situation of having closed and kept closed condition before the pallet heater 60.
Because to the control of pallet heater 60, control module 45 can determine also whether ice making is finished (operation S15) as mentioned above.The illustrative methods whether definite ice making is finished as above has been discussed.
If determine to have finished ice making, then close ice-make mode (operation S16) to finish the ice making operation.On the other hand, if determine not finish ice making, but then repetitive operation S12, S13 and operation S14.Thereby control lasts till always and forms ice satisfactoryly to the Open-closure of pallet heater 60.
By using control method as described above, the temperature of pallet 21 can remain on more than the freezing temperature, forms ice simultaneously around control plunger 23, thereby obtains transparency ice.
Fig. 8 is for describing the flow chart for preparing the method for transparency ice according to the use Icemaker assembly of the first embodiment of the present invention.
Referring to Fig. 8, in the exemplary embodiment,, control the temperature that provides to the water of pallet 21 by the operation of control blower fan in ice making operating period.
In detail, according to the characteristic of above-described gas solubility, if the decline of the temperature of water is too fast, the air that then is included in when water freezes in the water can be trapped within the water.For fear of this situation, the temperature of the water that temporarily raises so that air overflowed.
At first, when opening ice-make mode (operation S21), (operation S22) at first supplies water.Before ice making operation beginning after the operation of supplying water, control module 45 determines whether the measurement temperature T of plunger 23 is equal to or greater than the first predetermined temperature T1 (operation S24).At this, the temperature T of plunger 23 can be the surface temperature of plunger 23, and this temperature can use plunger temperature sensor 70 (Fig. 6) to detect.Be equal to or greater than first temperature T 1 if determine the temperature T of plunger 23, then can open the temperature (operation S25) of cooling blower to reduce plunger 23.On the other hand, be lower than first temperature T 1, then can close cooling blower (operation S26) to avoid the circulation of cooling air in the ice making space 11 if determine the temperature T of plunger 23.At this, open (S25) or close (S26) and comprise this situation, that is, before opened or closed cooling blower and maintained respectively and opened or closed condition.For example, be equal to or greater than first temperature T 1 if determine the plunger temperature T, and cooling blower is opening, then cooling blower can rest on opening simply.
In case determined the operation of cooling blower, control module determines just whether the ice making time (t) reaches first time t1 (operation S27) is set.
In detail, do not reach first time t1 is set if determine the ice making time (for example from ice making operation beginning elapsed time (t)), step (procedure) can be back to operation S24.On the other hand, reached first time t1 has been set, then can control the temperature of plunger 23 if determine the ice making time (t).
More particularly, the ice making time reach first time t1 is set after, then determine whether the plunger temperature T is equal to or higher than the second predetermined temperature T2 (operation S28).The second predetermined temperature T2 can be lower than the first predetermined temperature T1.If determine that the plunger temperature T is equal to or higher than the second predetermined temperature T2, then can open cooling blower (operation S29).Otherwise, can close cooling blower (operation S30).These operations are roughly the same with the operation of using first temperature.
When keeping the plunger temperature T to be lower than the second predetermined temperature T2, determine whether the ice making time (t) has reached second time t2 (operation S31) is set.
Reach second when time t2 is set when definite ice making time (t), can carry out and eject ice operation (S32).After ejecting the ice operation, can close ice-make mode (operation S33).If the ice making time (t) also reaches second time t2 is not set, then step will be back to operation S28.
In first embodiment, can under the situation of not opening ice ejection heater 25, use cooling blower to carry out control and handle with the preparation transparency ice.Although described " On/Off " control of cooling blower hereinbefore, also can control the speed of cooling blower according to the measurement temperature of plunger 23.In the case, can use the speed-changing draught fan motor.
Can progressively reduce the temperature of plunger 23 lentamente, to prevent freezing entrapped air among the Shi Zaishui at water.In the exemplary embodiment, reduce the temperature T of plunger 23 with two steps, yet, can according to the situation of for example refrigerating chamber use three steps or more multistep reduce the temperature T of plunger 23.
Fig. 9 is for describing the flow chart for preparing the method for transparency ice according to the use Icemaker assembly of second embodiment.
With reference to Fig. 9, in the exemplary embodiment, can eject the temperature that heater 25 is controlled the water that offers pallet 21 by ice.Can be held open (being ongoing operation) cooling blower and control ice ejection heater 25 simultaneously, thus the temperature of regulating plunger 23.
At first, initialization ice-make mode (operation S51), supply water (operation S52), and finish waters supply (operating S53) similarly with first embodiment.
After finishing water supply, can operate cooling blower the cooling air to be provided and to make cooling air whole ice making space 11 in, circulate (operate S54).Cool off a plurality of fins 24 by conducting heat with the cooling cross-ventilation, and by cooling off plunger 23 with fin 24 conduction heat transfers of cooling.
Can measure the surface temperature of plunger 23 by plunger temperature sensor 70, and the surface temperature of plunger 23 is transferred to control module 45.Then, control module 45 determines whether the plunger temperature T of measuring is equal to or greater than the first predetermined temperature T1 (operation S55).
In detail, if determine that the plunger temperature T is equal to or greater than first temperature T 1, then can close ice and eject heater 25 (operation S56).Otherwise, open ice and eject heater 25 (operation S57).At this, open or close class of operation that ice ejects heater 25 and " On/Off " of cooling blower mentioned above seemingly.
After the On/Off operation of having determined ice heater 25 and having passed through the scheduled time, control module can determine whether the ice making time (t) has reached first time t1 (operation S58) is set.If the ice making time (t) also reaches first time t1 is not set, then step will be back to operation S55.
On the other hand, if the ice making time (t) has reached first time t1 is set, then the temperature T of plunger 23 just is reduced to and is lower than first temperature that temperature T 1 is set.
In detail, time t1 is set, then can measures current plunger temperature T in case the ice making time (t) reaches first.Determine then whether the plunger temperature T of measuring is equal to or higher than the second predetermined temperature T2 (operation S59).At this, second temperature T 2 can be lower than first temperature T 1 is set.If the plunger temperature T is equal to or higher than second temperature T 2, then can closes ice and eject heater 25 (operation S60).Otherwise, if the plunger temperature T is lower than second temperature T 2 is set, then can open ice and eject heater 25 (operation S61).
Then, determine whether the ice making time (t) reaches second the time (operation S62) is set.When the temperature T of plunger 23 maintains second when temperature T 2 is set, just can carry out this determining by the time (time passage).
As shown in Figure 9, if the ice making time (t) reaches second time t2 is not set, then step can be back to operation S59.Otherwise, if the ice making time (t) has reached second time t2 is set, then can carry out and eject ice operation (operation S63).After ejecting ice, can close ice-make mode (operation S64).
According to method mentioned above, can use ice to eject heater 25 and control the ice making environment, thus the preparation transparency ice.That is to say, be lower than the temperature that is fit to the preparation transparency ice, then open ice ejection heater 25 and heat plunger 23 if the plunger temperature T drops to.Therefore, can suitably control the temperature that is filled in the water in the pallet 21, thereby when water freezed, the air that comprises in the water can be overflowed.
In second exemplary embodiment, can eject heater 25 by control ice and regulate the temperature that is filled in the water in the pallet 21.Yet method disclosed by the invention is not limited thereto.For example, can use semiconductor switch device (for example TRIAC or thyristor (thyristor)) to control and be applied to the voltage that ice ejects heater 25.In the case, temperature T 1 or T2 are set, then can increase the amplitude of the voltage that is applied to ice ejection heater 25, to produce more heat if the temperature T of plunger 23 is lower than.Otherwise, if temperature T is higher than temperature is set, then can reduce to be applied to the amplitude that ice ejects the voltage of heater 25, to produce less heat.In addition, the temperature T of plunger 23 is (constantly) reduction stably, rather than reduces in the mode of stepping.
Figure 10 is for describing the flow chart for preparing the method for transparency ice according to the use Icemaker assembly of the 3rd embodiment.
As shown in figure 10, in the exemplary embodiment, can control the temperature of the water that is provided to pallet 21 by compounding practice ice ejection heater 25 and cooling blower.
It is also noted that at first it is identical with mode among first embodiment to open ice-make mode (operation S71), supply water (operation S72) and finish the execution of waters supply (operating S73).
In detail, after water supply is finished, determine whether the temperature T of plunger 23 is equal to or higher than the first predetermined temperature T1 (operation S74).If detected plunger temperature T is equal to or higher than first temperature T 1, then can opens cooling blower and can close ice ejection heater 25 (operation S75).Therefore, the cooling air can be provided to ice making space 11, plunger 23 is cooled to first temperature T 1.Otherwise, if the plunger temperature T is lower than first temperature T 1, then can closes cooling blower and can open ice ejection heater 25, so that being maintained, the plunger temperature T is about first temperature (operation S76).
As indicated above, when the plunger temperature T maintains when being about first temperature T 1, control module 45 determines that whether reaching first from ice making operation beginning elapsed time (being ice making time (t)) is provided with time t1 (operation S77).If the ice making time (t) reaches first time t1 is not set, then step will be back to operation S74.
Otherwise, if the ice making time (t) reaches first time t1 is set, then the temperature T of plunger 23 drops to the temperature that is lower than first temperature T 1 and keeps this temperature.That is, determine whether the plunger temperature T is equal to or greater than the second predetermined temperature T2 (operation S78).At this, second temperature T 2 is lower than first temperature T 1.
In detail, if the plunger temperature T is equal to or higher than the second predetermined temperature T2, then can opens cooling blower and can close ice ejection heater 25 (operation S79).On the other hand, if the plunger temperature T is lower than second temperature T 2, then can closes cooling blower and can open ice ejection heater 25 (operation S80).In case the plunger temperature T reaches second temperature T 2, then elapsed time amount (that is ice making time (t)) and second is provided with time t2 and compares.Come relatively to determine based on this whether the ice making time (t) reaches second time t2 (operation S81) is set.If the ice making time (t) also reaches second time t2 is not set, then step is back to operation S78.
If the ice making time (t) has reached second time t2 is set, then the ice making operation is finished, and then ejects ice (S82).After finishing the operation of ejection ice, close ice-make mode (operation S83).It is also noted that for method mentioned above, the mode that the temperature T of plunger 23 can stepping reduces, perhaps with continue/gradually mode reduces.For example, if the temperature T of plunger 23 is equal to or higher than predetermined temperature T1 or T2, speed that then can be by increasing cooling blower and reduce power supply that ice is ejected heater 25 and the temperature T of plunger 23 is reduced to temperature is set.On the other hand, if the temperature T of plunger 23 is lower than predetermined temperature T1 or T2, speed that then can be by reducing cooling blower and increase power supply that ice is ejected heater 25 temperature T of plunger 23 is increased to predetermined temperature T1 or T2.
Figure 11 is the view of plunger temperature when carrying out the method for control Icemaker assembly that illustrates according to embodiment.
With reference to Figure 11, according to the described control method of first to the 3rd exemplary embodiment, the temperature of plunger 23 can change shown in the view of Figure 11.In embodiment mentioned above, can reduce the temperature of plunger 23 two steps; Yet, also can three the step or more multistep reduce the temperature of plunger 23.
As shown in figure 11, the temperature of plunger 23 is provided with time t1 first and slightly changes around first temperature T 1.That is, the mean temperature of plunger 23 maintains and is about first temperature T 1.After through first time cycle t1 being set, the temperature of plunger 23 is provided with time t2 second and maintains and be about second temperature T 2 is set, till ice making is finished.
According to control method mentioned above, in the early stage of ice making operation, the water that is supplied to pallet 21 can maintain higher relatively temperature, so that the air that comprises in the water was overflowed before water freezes.Afterwards, the temperature of plunger 23 reduces, to increase the formation speed of ice.Therefore, the situation that produces opaque ice owing to the quick decline of coolant-temperature gage can be minimized.
Although embodiment is described with reference to a plurality of exemplary embodiments, be understandable that those skilled in the art can derive numerous other modification and embodiment fully, these modification and embodiment fall within the design and scope of principle of the present invention.Especially, multiple changes and improvements are carried out in assembly and/or the arrangement that can make up in being provided with main body in the scope of the disclosure, accompanying drawing and appended claims.Except the changes and improvements of assembly and/or arrangement, it also is conspicuous to those skilled in the art that other selectivity are used.
Claims (6)
1. a control is used for the method for the Icemaker assembly of refrigerator, said method comprising the steps of:
The initialization ice-make mode;
Ice groove in being formed at pallet supplies water, and described pallet is used for ccontaining plunger;
Make water contact described plunger, from water, to remove heat;
Intermittently operated is arranged on the heater at described pallet place, is higher than icing temperature so that described pallet is maintained; And
Control is used to heat the operation that the ice of described plunger ejects heater, to reduce the temperature of described plunger gradually;
Wherein cooling blower is set to operation till the ice making operation is finished.
2. method according to claim 1 wherein when forming ice, is optionally opened or is closed described ice and eject heater, so that described plunger is maintained predetermined temperature.
3. method according to claim 1 wherein when forming ice, increases or reduces being applied to the voltage that described ice ejects heater, so that described plunger is maintained predetermined temperature.
4. method according to claim 3 wherein increases or reduces the voltage that is applied to described ice ejection heater by semiconductor switch device.
5. method according to claim 1 is wherein in ice making operating period, stable and reduce the temperature of described plunger constantly.
6. method according to claim 1 wherein in ice making operating period, reduces the temperature of described plunger in the mode of stepping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0021817 | 2008-03-10 | ||
| KR1020080021817A KR101457691B1 (en) | 2008-03-10 | 2008-03-10 | Controlling method of an ice making assembly for refrigerator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910126958A Division CN101532761A (en) | 2008-03-10 | 2009-03-10 | Method of controlling ice making assembly for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101893360A true CN101893360A (en) | 2010-11-24 |
| CN101893360B CN101893360B (en) | 2012-07-04 |
Family
ID=40791004
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102432783A Expired - Fee Related CN101893360B (en) | 2008-03-10 | 2009-03-10 | Method of controlling ice making assembly for refrigerator |
| CN200910126958A Pending CN101532761A (en) | 2008-03-10 | 2009-03-10 | Method of controlling ice making assembly for refrigerator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910126958A Pending CN101532761A (en) | 2008-03-10 | 2009-03-10 | Method of controlling ice making assembly for refrigerator |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20090223230A1 (en) |
| EP (1) | EP2101128B1 (en) |
| KR (1) | KR101457691B1 (en) |
| CN (2) | CN101893360B (en) |
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|---|---|---|---|---|
| CN115289762A (en) * | 2018-10-02 | 2022-11-04 | Lg电子株式会社 | Refrigerator |
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2008
- 2008-03-10 KR KR1020080021817A patent/KR101457691B1/en active IP Right Grant
-
2009
- 2009-02-25 EP EP09002660.0A patent/EP2101128B1/en active Active
- 2009-02-26 US US12/379,694 patent/US20090223230A1/en not_active Abandoned
- 2009-03-10 CN CN2010102432783A patent/CN101893360B/en not_active Expired - Fee Related
- 2009-03-10 CN CN200910126958A patent/CN101532761A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289762A (en) * | 2018-10-02 | 2022-11-04 | Lg电子株式会社 | Refrigerator |
| CN115289761A (en) * | 2018-10-02 | 2022-11-04 | Lg电子株式会社 | Refrigerator |
| CN115289761B (en) * | 2018-10-02 | 2023-11-14 | Lg电子株式会社 | Refrigerator with a refrigerator body |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090096787A (en) | 2009-09-15 |
| KR101457691B1 (en) | 2014-11-03 |
| EP2101128A3 (en) | 2014-01-15 |
| EP2101128A2 (en) | 2009-09-16 |
| CN101893360B (en) | 2012-07-04 |
| CN101532761A (en) | 2009-09-16 |
| EP2101128B1 (en) | 2018-11-07 |
| US20090223230A1 (en) | 2009-09-10 |
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