CN102549359A - Refrigerator/freezer ice maker - Google Patents
Refrigerator/freezer ice maker Download PDFInfo
- Publication number
- CN102549359A CN102549359A CN2010800411901A CN201080041190A CN102549359A CN 102549359 A CN102549359 A CN 102549359A CN 2010800411901 A CN2010800411901 A CN 2010800411901A CN 201080041190 A CN201080041190 A CN 201080041190A CN 102549359 A CN102549359 A CN 102549359A
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- China
- Prior art keywords
- ice
- heater
- freezing
- temperature
- thermistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/04—Producing ice by using stationary moulds
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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
- 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
- F25C5/06—Apparatus for disintegrating, removing or harvesting ice without the use of saws by deforming bodies with which the ice is in contact, e.g. using inflatable members
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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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
- F25B2600/112—Fan speed control of evaporator fans
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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
- F25C2305/00—Special arrangements or features for working or handling ice
- F25C2305/022—Harvesting ice including rotating or tilting or pivoting of a mould or tray
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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
- F25C2400/00—Auxiliary features or devices for producing, working or handling ice
- F25C2400/10—Refrigerator units
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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
- F25C2600/02—Timing
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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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- 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
- F25C2700/00—Sensing or detecting of parameters; Sensors therefor
- F25C2700/02—Level of 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2700/00—Sensing or detecting of parameters; Sensors therefor
- F25C2700/12—Temperature of ice 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
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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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
- F25D2323/021—French doors
Abstract
Disclosed is an ice maker (10) that is disposed in the ice making chamber (4) of a refrigerator/freezer (1). The ice maker comprises an ice tray (20) that makes ice by means of cold air that is sucked into the ice making chamber, a thermistor (25) that measures the temperature within the ice tray, a heater (31) that heats the ice tray from below, and a control unit (50) that controls the operation of a freezing cycle and the passage of electric current to the heater using the temperature measured by the thermistor as a criteria. The control unit performs a freezing preparation step in which, after water has been supplied to the ice tray, a "preheating" electric current is passed to the heater until the temperature measured by the thermistor falls below freezing; an ice melting step in which, after the temperature measured by the thermistor has fallen below freezing, a "rapid heating" electric current is passed to the heater for a given period of time only; and a freezing progression step in which a "normal heating" electric current is passed to the heater until the temperature measured by the thermistor falls to a prescribed temperature.
Description
Technical field
The present invention relates to a kind of ice maker of freezing-cooling storeroom.
Background technology
Freezing-cooling storeroom has usually and utilizes freezing cold air to carry out the ice maker of ice making.The example of the ice maker that in freezing-cooling storeroom, is provided with can be with reference to patent documentation 1-7.
The transparency of the ice of usually, making with the ice maker of freezing-cooling storeroom is lower.So all manage to improve the transparency of ice all the time.The ice maker that patent documentation 1-7 is put down in writing has also carried out such research.
In the ice maker that patent documentation 1,2 is put down in writing, heater is set above ice-making disc, make the top of ice-making disc be in the condition of high temperature, and generate ice from the inner bottom of ice-making disc to the top successively than the bottom.Thus, in the generative process of ice, the air in the water flows out from the top easily, can make not aeriferous transparency ice.The ice maker that patent documentation 3 is put down in writing also is provided with heater above ice-making disc.
In the ice maker that patent documentation 4-7 is put down in writing; Transparency ice part and white casse ice part are generated with connection status; When separate ice, cut off transparency ice part and white casse ice part, remain in white casse ice part in the ice-making disc, only take out the transparency ice part.
Patent documentation 1: Japan Patent open communique spy open flat 4-260768 number
Patent documentation 2: Japan Patent open communique spy open flat 5-196331 number
Patent documentation 3: Japan Patent open communique spy open flat 1-203869 number
Patent documentation 4: Japan Patent open communique spy open 2007-232336 number
Patent documentation 5: Japan Patent open communique spy open 2007-232336 number
Patent documentation 6: Japan Patent open communique spy open 2008-151504 number
Patent documentation 7: Japan Patent open communique spy open 2008-157619 number
Summary of the invention
The object of the present invention is to provide a kind of ice maker with freezing-cooling storeroom of the new construction that generates transparency ice.
According to preferred implementation of the present invention, the ice maker of freezing-cooling storeroom comprises: ice-making disc, be configured in the ice-making compartment, and utilize the cold air that is blown in the said ice-making compartment to carry out ice making; Thermistor is measured the temperature in the said ice-making disc; Heater heats said ice-making disc from the below; And control part; Based on the measurement temperature of said thermistor, carry out the running control of cooling cycle system and the energising control of said heater, after supplying water to said ice-making disc; Said control part is switched on to said heater; The development that control is frozen, and, carry out the ice melting step to the initial stage of said heater energising.
Through ice-making disc being heated from the below with heater and freezing, transparency ice is not from the position growth that contacts with the ice-making disc inner surface, but from leaving the position growth of ice-making disc inner surface.When freeze accomplishing, owing to flow out air from peripheral part, so residual bubble impression and form concavo-convexly on the surface, but the jog of outer surface is dissolved in the liquid fast, liquid cooled off fast, the last only part of residual transparency ice.Thus, can provide transparency ice to swim in the view in the liquid to the user.
During ice making,, then hinder and obtain transparency ice, but shift the generation transparency ice, so can make the part of transparency ice become big owing to temporarily melt the back to existing ice if adhere to existing ice at the ice-making disc inner surface.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; Said control part to said heater with " usually heating ", " preheating " that caloric value is littler than " heating usually ", caloric value than the control of switching on of " heating usually " big " Fast Heating " three phases; After supplying water to said ice-making disc; Carry out following steps: the preparation process that freezes, before the measurement temperature of said thermistor drops under the freezing point, carry out " preheating " energising to said heater; The ice melting step after the measurement temperature of said thermistor drops under the freezing point, carries out " Fast Heating " energising to said heater within a certain period of time; And icing development step, before the measurement temperature of said thermistor drops to set point of temperature, said heater is carried out " heating usually " energising.
According to this structure, suitably regulate the heating of heater, can generate transparency ice reliably.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; In the said icing preparation process, when the compressor in said cooling cycle system got into stopping period, said control part was ended to said heater energising.
In the preparation process that freezes, require heater to slow down temperature and sharply reduce.In compressor operation,, can realize said purpose, but the compressor stopping period has slowed down the temperature reduction naturally, because the necessity of heater energising is little, so end to switch on to heater through to the heater energising.Thus, can the power consumption of meaningless ground.
According to preferred implementation of the present invention, on the basis of the ice maker of the freezing-cooling storeroom of said structure, in the said icing preparation process, when setting was above, said control part was ended to said heater energising in the measurement temperature of said thermistor.
If to the heater energising, then the ice making time is elongated till when the water temperature that supplies water to ice-making disc is high.According to this structure, if the measurement temperature of thermistor for example more than 1 ℃ the time, is ended to the heater energising, then till water can not produce when freezing from the position that contact with ice-making disc, switch on to heater, can avoid meaningless power consumption.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; In the said ice melting step, no matter the compressor in the said cooling cycle system is in the running or in stopping, and said control part all carries out " Fast Heating " energising to said heater.
According to this structure, ice is melted quickly.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; In the said icing development step, when the compressor in said cooling cycle system got into stopping period, said control part was ended to said heater energising; And behind compressor entry into service again, within a certain period of time said heater is carried out " Fast Heating " energising.
Because when compressor stopped, temperature controlled necessity that utilizing the heater energising to carry out was little, so end energising this moment, avoids meaningless power consumption.But; Because of ending, when compressor entry into service again, might produce at the inner surface of ice making unit and freeze to the heater energising; So behind compressor entry into service again; Only within a certain period of time heater is carried out " Fast Heating " energising, freeze, then it is melted if produced at the inner surface of ice-making disc.Thus, although heater is intermittently switched on, also can generate transparency ice continuously.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; In the said icing development step, after the measurement temperature of said thermistor dropped to set point of temperature, said control part stopped to said heater energising; And, make the separate ice device carry out the separate ice action through behind the certain hour.
According to this structure, generate transparency ice reliably after, carry out separate ice action, be placed to operable state to transparency ice.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; In the said icing development step, after the measurement temperature of said thermistor dropped to set point of temperature, said control part reduced the electrical current of said heater gradually up to stopping energising; And, make the separate ice device carry out the separate ice action through behind the certain hour.
The temperature of each ice making unit of the ice-making disc measurement temperature with thermistor entirely is consistent.Even the measurement temperature of thermistor drops to set point of temperature, the temperature of the ice making unit of a part does not also drop to this degree, sometimes maybe the residual water that does not freeze.Be not measurement temperature with thermistor to drop to set point of temperature be opportunity, stop to the heater energising, but through electrical current is reduced up to the processing that stops to switch on gradually quickly, can prevent because of water not icing and residual.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; When the indoor temperature of said ice-making compartment or the cold air temperature that is blown into said ice-making compartment when setting is above, it is low-intensity that said control part makes the electrical current of said heater.
According to this structure, to control the needed heat part of the development of freezing, can make iceman's preface optimization to the heater energising through only.
According to preferred implementation of the present invention; On the basis of the ice maker of the freezing-cooling storeroom of said structure; Set temperature of refrigerating chamber when higher for when externally temperature is low, said control part reduces the rotating speed of the compressor in the said cooling cycle system and sends into the rotating speed of the pressure fan of cold air to said ice-making compartment.
If when externally temperature is low set temperature of refrigerating chamber for higherly, then shorten the duration of runs of compressor usually, and the time of cold air contact ice-making disc shortens, and makes the ice making time lengthening.In this case, the rotating speed through making compressor and the rotating speed of pressure fan all reduce, and have prolonged the duration of runs of compressor, can shorten the ice making time.
According to the present invention, freeze through from the below ice-making disc being heated simultaneously with heater, though that the vestige of the bubble that flows out from peripheral part produces on the surface is concavo-convex, accounts for most core and can obtain transparent ice.In addition, can prevent power wastage, make ice making operation optimization, and can obtain the uniform transparency ice of quality.
Description of drawings
Fig. 1 is the front view of the freezing-cooling storeroom with ice maker of the preferred embodiment for the present invention.
Fig. 2 is the freezing-cooling storeroom partial vertical sectional view of expression ice maker.
Fig. 3 is and the meet at right angles vertical sectional view of the ice maker that direction cuts open of Fig. 2.
Fig. 4 be up and down inverted status ice-making disc and with the stereogram of the thermistor of its combination.
Fig. 5 be up and down inverted status ice-making disc and with the heater of its combination and the stereogram of lid.
Fig. 6 is the stereogram of state that the lid of heater is installed on the ice-making disc of inverted status up and down.
Fig. 7 is the control block diagram of freezing-cooling storeroom.
Fig. 8 is the flow chart of expression ice maker action.
Fig. 9 is the flow chart of the difference action of expression ice maker.
Description of reference numerals
1 freezing-cooling storeroom
4 ice-making compartments
10 ice makers
11 pipelines
13 cold air blow-off outlets
20 ice-making disc
21 ice making unit
24 separate ice devices
25 thermistors
31 heaters
34 lids
45 wind shutters
50 control parts
51 compressors
52 pressure fans
53 water supply installations
The specific embodiment
Describe according to the structure of accompanying drawing the freezing-cooling storeroom with ice maker of the preferred embodiment for the present invention.Freezing-cooling storeroom 1 shown in Figure 1 comprises: the refrigerating chamber 2 with double- open type door 3L, 3R of the superiors; It is the ice-making compartment with door 54 and the refrigerating chamber 6 with door 7 of one deck down; It is the refrigerating chamber 8 of the drawer type of one deck down; And the vegetable compartment 9 of undermost drawer type.Not shown cooling cycle system by comprising compressor and heat exchanger generates cold air, and this cold air is assigned to each chamber through pipeline, in each chamber, obtains needed refrigerated storage temperature or cryogenic temperature.Because this structure is well-known, so be not elaborated.
Be provided with Fig. 2 and ice maker 10 shown in Figure 3 at the top of ice-making compartment 4.Also to Fig. 6 its structure is described below with reference to Fig. 4.
Fig. 2 is the cutaway view from the ice maker 10 of the left surface direction observation of freezing-cooling storeroom 1.On the wall of the depths of ice-making compartment 4, be formed with pipeline 11, this pipeline 11 is used for being blown into cold air to ice-making compartment 4.Ice-making disc shell 12 extends towards the place ahead from the upper end of pipeline 11.For the ice of making in the ice-making disc is fallen, the lower surface opening of ice-making disc shell 12.On pipeline 11, be formed with cold air blow-off outlet 13 towards the inside of ice-making disc shell 12.
In the inside of ice-making disc shell 12, on the position that receives the cold air that blows out from cold air blow-off outlet 13, dispose ice-making disc 20.Even ice-making disc 20 is by the molding synthetic resin that also can not follow the string at low temperatures.In addition, if on the inner surface of the bubble in the water that provides attached to ice-making disc 20, then be difficult to obtain transparency ice.Therefore, the processing that preferably makes bubble be difficult to adhere to, for example with the material of allocating silicon in the polypropylene into as moulding material, perhaps use the ice-making disc 20 behind the fluororesin coating molding.
The particulate that the static that produces because of ice-making disc 20 surfaces adsorbs also hinders the generation transparency ice.Therefore, preferably adopt following countermeasure: for example ice-making disc 20 is carried out moulding, perhaps on the ice-making disc after the moulding 20, apply antistatic agent by the resin of allocating silicon into or the material of sneaking into the so difficult generation static of the resin of antistatic agent.
It is the ice making unit 21 that ice is made in trapezoidal being used to that ice-making disc 20 has eight sections.Two row four lines are lined up in eight ice making unit 21, so the flat shape of ice-making disc 20 is elongated.Be configured to elongated like this ice-making disc 20 make its long side direction consistent with the depth direction of freezing-cooling storeroom 1.
An end of ice-making disc 20 long side directions is provided with bolster 22, and another end is provided with receptacle portion 23.Bolster 22 rotates and is bearing in freely on the ice-making disc shell 12.Receptacle portion 23 is closed with being arranged on ice-making disc shell 12 inner being coupling of separate ice device 24 (with reference to Fig. 3), by 24 supportings of separate ice device.Bolster 22 is configured on the same horizontal axis with receptacle portion 23.Separate ice device 24 has motor and deceleration device, and making ice-making disc 20 is the turning cylinder scope that turns an angle with said horizontal axis.
On the lower surface of ice-making disc 20, side by side two row ice making unit 21 between the position on dispose thermistor 25.Thermistor 25 is measured the internal temperature of ice making unit 21 across the wall of ice making unit 21.
On the lower surface of ice-making disc 20 except disposing thermistor 25, also dispose heater shown in Figure 5 31.Form heater 31 through covering heater strip with silicones, heater 31 is made whole soft, can be driven in reversing of ice-making disc 20.Apex portion at the inverted status up and down of each ice making unit 21 is formed with the parallel ribs 32 of holding heater 31.
Because the design caloric value of heater 31 is little, so be to be wrapped in the structure on the core of glass fibre to very thin heater strip, if reverse to the direction of taking up, then heater strip cuts off easily.Therefore as previously mentioned, can also to make heater 31 configured in one piece become on heater strip, not bear the shape of excessive power the free activity to a certain extent except heater 31.
Put into parallel ribs 32 to heater 31, heater 31 is close on the lower surface of ice-making disc 20, and cover the lower surface of ice-making disc 20 with lid 34.Cover 34 roles and be and prevent that cold air from getting into the bottom surface section of ice-making disc 20, make the uniformity of temperature profile between each ice making unit 21, and push heater 31 and be limited in the parallel ribs 32.
Near the two ends near the long side direction center line on the lid 34, be formed with two through holes 38.In addition, than through hole 38 more near the position of lid central authorities, be formed with and be clipped in the middle the long side direction center line and two symmetrical through holes 39.Through hole 38 is circular, and the section that is formed on ice-making disc 20 lower surfaces is passed through for circular convexity 40.Through hole 39 is a rectangle, makes the spring that is formed on ice-making disc 20 lower surfaces that rib 41 is installed and passes through.
Fix if be screwed into screw 36 in the convexity of exposing from through hole 38 40, then cover 34 with screw 36 as the mode of anticreep with retainer, be retained and can move along protruding 40 axis.That is, screw 36 is not 34 fastening lid, covers 34 and separates with ice-making disc 20 but stop.
Come off if prevent to cover 34 with screw 36, then as shown in Figure 6, it is outstanding from covering 34 through hole 39 that spring is installed rib 41.The installation hook 43 at spring 37 two ends is fastened in the horizontal through hole 42 of spring installation rib 41 front ends formation.Spring 37 is to have the hook of installation 43, to have the mode of hair clip portion 44 at the long side direction both ends, by the spring steel wire bending forming at the long side direction central portion.
On the wind shutter that extends below 45 one-body molded two edges of long side direction in ice-making disc 20.Wind shutter 45 stops the cold air that blows to ice-making disc 20 from the top around to the below.Therefore, can prevent that cold air from entering into the lower surface of ice-making disc 20 and damage the heats of heater 31, makes cold air concentrate on the upper surface of ice-making disc 20.
On wind shutter 45, with ice making unit 21 between consistent position, border be formed with recess 46.Under the situation of embodiment, a wind shutter 45 has two recesses 46.If recess 46 is not set, then when reversing ice-making disc 20, the stress of wind shutter 45 concentrates on the position, and the resin material at this position is stage generation albefaction in early days, and develops into be full of cracks.Through forming recess 46, stress is disperseed, can prevent to produce albefaction and be full of cracks.
As shown in Figure 3, be provided with gap 47 at wind shutter 45 with between covering 34, be not in contact with one another thereby when reversing ice-making disc 20, can not produce for separate ice yet.
On the end of bolster 22 1 sides of ice-making disc 20, on single side, be formed with projection 48.Projection 48 is used for when separate ice, making ice-making disc 20 to reverse.
50 pairs of freezing-cooling storerooms of control part shown in Figure 71 carry out integral body control, and the running that comprises cooling cycle system is controlled and controlled to the energising of heater 31.At the water supply installation 53, the temperature sensor 54 that supply water except the pressure fan 52 that is connected with separate ice device 24 with the heater 31, also is connected with the compressor 51 that becomes a link of cooling cycle system, each one sees cold air off in the storehouse, to ice maker 10 on the control part 50 be configured in ice quantity sensor 55 in the ice-making compartment 4 etc.Temperature sensor 54 comprises the temperature elements such as thermistor that are configured in each several part, wherein also comprises thermistor 25.
Control part 50 is controlled to following three phases to the energising of heater 31.That is " preheating " of, " heat usually ", caloric value is littler than " heating usually ", caloric value are than " heating usually " big " Fast Heating ".The power consumption that for example can set " heating usually " for is 5～6W, and the power consumption of " preheating " is 2W, and the power consumption of " Fast Heating " is 7～8W, makes caloric value different.
Action to ice maker 10 describes with reference to the flow chart of Fig. 8 below.When accomplishing the separate ice action and making ice-making disc 20 turn back to state upwards, flow process begins.
In step # 101, control part 50 makes water supply installation 54 actions, supplies water to ice-making disc 20.
Because the temperature of ice-making compartment 4 is near the cryogenic temperature (being set at negative 18 ℃), if supply water then the temperature rising of ice-making disc 20.In step # 102, thermistor 25 detects this temperature and rises.
Because water supply just just is cooled, so just begin to reduce after the temperature that thermistor 25 is measured temporarily rises.Get into step # 103 this moment.
In step after this, also utilize heater 31 to heat.Through ice-making disc 20 being heated from the below with heater 31 and freezing; Not to make the transparency ice growth from the position that joins with ice-making disc 20 inner surfaces; But make the transparency ice growth from the position of leaving ice-making disc 20 inner surfaces, so grow into the high ice of transparency easily.
When the compressor midway 51 of step # 103 gets into stopping period, slowed down the temperature reduction naturally.Control part 50 is ended meaningless power consumption is avoided in heater 31 energisings.
When the measurement temperature of thermistor 25 when setting is above, for example more than 1 ℃ the time, control part 50 is also ended heater 31 energisings.Thus, till water can not take place from the position that contacts with ice-making disc 20 to freeze, heater 31 is switched on, can avoid meaningless power consumption.
In step # 104, whether the measurement temperature of control part 50 inspection thermistors 25 drops under the freezing point.If drop under the freezing point, then get into step # 105.
In step # 105, tube compressor 51 is not in the running or in stopping, and control part 50 all carries out " Fast Heating " energising to heater 31.Thus, ice is melted quickly.
When the compressor midway 51 of step # 106 got into stopping period, control part 50 was ended meaningless power consumption is avoided in heater 31 energisings.But,, when restarting the running of compressor 51, might take place at the inner surface of ice-making disc 20 to freeze because of ending to heater 31 energisings.So, after the running that restarts compressor 51, within a certain period of time heater 31 is carried out " Fast Heating " energising, if on the inner surface of ice-making disc 20, taken place to freeze, then it is melted.Thus, although intermittently heater 31 is switched on, also can generate transparency ice continuously.
In step # 107, whether the measurement temperature of control part 50 inspection thermistors 25 drops to set point of temperature.If drop to for example negative 9 ℃ set point of temperature, then judge the ice making completion, enter into step # 108.
In step # 108, control part 50 stops heater 31 energisings.Through behind the certain hour, judge to generate transparency ice really, get into step # 109.
In step # 109, control part 50 makes separate ice device 24 carry out the counter-rotating action of ice-making disc 20.Make ice-making disc 20 after bolster 22 rotates at separate ice device 24, in the stage before counter-rotating will be accomplished up and down, projection 48 contacts are formed on the not shown retainer on the ice-making disc shell 12.Because after this separate ice device 24 also makes ice-making disc 20 be rotated further predetermined angular, so ice-making disc 20 torsional deflections.As previously mentioned, even because at wind shutter 45 with cover to be provided with between 34 and reverse the gap 47 that ice-making disc 20 also can not be in contact with one another, can not send the sound of creaky voice, or mutual abrasion because of mutual friction mutually so cover 34 edge and wind shutter 45.
If ice-making disc 20 is reversed, then extrude the ice in the ice making unit 21, and fall in the not shown ice container that is placed in the ice-making compartment 4.After the separate ice, separate ice device 24 rotates ice-making disc 20 round about, make ice-making disc 20 turn back to original towards.Thus, accomplish the ice making operation of one-period.If the ice amount in the ice quantity sensor 55 report ice containers not enough, then continue the ice making operation of beginning next cycle.If the ice amount in the ice quantity sensor 55 report ice containers is enough, then ice maker 10 got between stand-down.
The temperature of each the ice making unit 21 all measurement temperature with thermistor 25 is consistent.Even the measurement temperature of thermistor 25 drops to set point of temperature, the temperature of the ice making unit 21 of a part does not drop to this degree, the yet residual sometimes water that does not freeze.Be not measurement temperature with thermistor 25 to drop to set point of temperature be opportunity, stop heater 31 energisings quickly, but, can prevent that sealing is not icing and residual through electrical current is reduced up to the processing that stops to switch on gradually.
Control part 50 also can carry out following action.
When setting was above, it was low-intensity that control part 50 makes the electrical current of heater 31 at the indoor temperature of ice-making compartment 4 or the cold air temperature that is blown into ice-making compartment 4.As an example, the design temperature of establishing acquiescence is negative 18 ℃, if temperature is higher than negative 18 ℃, the electrical current that then makes heater 31 is a low-intensity.If below 18 ℃, the electrical current that then makes heater 31 is common intensity to temperature negative.
Like this, to control the needed heat part of the development of freezing, can make iceman's preface optimization through only to heater 31 energisings.
Set temperature of refrigerating chamber when higher for when externally temperature is low, control part 50 makes the rotating speed reduction of the rotating speed and the pressure fan 52 of compressor 51.
If when externally temperature is low set temperature of refrigerating chamber for higherly, then shorten the duration of runs of compressor 51 usually, and the time of cold air contact ice-making disc 20 shortens the ice making time lengthening.The rotating speed through making compressor 51 and the rotating speed of pressure fan 52 all reduce, and prolonged the duration of runs of compressor 51, can shorten the ice making time.
More than each embodiment of the present invention is illustrated, but scope of the present invention is not limited thereto, can be with various mode of texturing embodiment of the present invention in not breaking away from the scope of inventing aim.
(industrial applicibility)
The present invention can be widely used in the ice maker of freezing-cooling storeroom.
Claims (10)
1. the ice maker of a freezing-cooling storeroom is characterized in that comprising:
Ice-making disc is configured in the ice-making compartment, utilizes the cold air that is blown in the said ice-making compartment to carry out ice making;
Thermistor is measured the temperature in the said ice-making disc;
Heater heats said ice-making disc from the below; And
Control part based on the measurement temperature of said thermistor, carries out the running control of cooling cycle system and the energising control of said heater,
After supplying water to said ice-making disc, said control part is switched on to said heater, the development that control is frozen, and, carry out the ice melting step to the initial stage of said heater energising.
2. the ice maker of freezing-cooling storeroom according to claim 1 is characterized in that,
Said control part to said heater with " usually heating ", " preheating " that caloric value is littler than " heating usually ", caloric value than the control of switching on of " heating usually " big " Fast Heating " three phases; After supplying water, carry out following steps to said ice-making disc:
Icing preparation process before the measurement temperature of said thermistor drops under the freezing point, carries out " preheating " energising to said heater;
The ice melting step after the measurement temperature of said thermistor drops under the freezing point, carries out " Fast Heating " energising to said heater within a certain period of time; And
Icing development step before the measurement temperature of said thermistor drops to set point of temperature, carries out " heating usually " energising to said heater.
3. the ice maker of freezing-cooling storeroom according to claim 2 is characterized in that, in the said icing preparation process, when the compressor in said cooling cycle system got into stopping period, said control part was ended to said heater energising.
4. the ice maker of freezing-cooling storeroom according to claim 2 is characterized in that, in the said icing preparation process, when setting was above, said control part was ended to said heater energising in the measurement temperature of said thermistor.
5. the ice maker of freezing-cooling storeroom according to claim 2; It is characterized in that; In the said ice melting step, no matter the compressor in the said cooling cycle system is in the running or in stopping, and said control part all carries out " Fast Heating " energising to said heater.
6. the ice maker of freezing-cooling storeroom according to claim 2; It is characterized in that; In the said icing development step, when the compressor in said cooling cycle system got into stopping period, said control part was ended to said heater energising; And behind compressor entry into service again, within a certain period of time said heater is carried out " Fast Heating " energising.
7. the ice maker of freezing-cooling storeroom according to claim 2; It is characterized in that; In the said icing development step, after the measurement temperature of said thermistor dropped to set point of temperature, said control part stopped to said heater energising; And, make the separate ice device carry out the separate ice action through behind the certain hour.
8. the ice maker of freezing-cooling storeroom according to claim 2; It is characterized in that; In the said icing development step, after the measurement temperature of said thermistor dropped to set point of temperature, said control part reduced the electrical current of said heater gradually up to stopping energising; And, make the separate ice device carry out the separate ice action through behind the certain hour.
9. according to the ice maker of any described freezing-cooling storeroom in the claim 1 to 8; It is characterized in that; When the indoor temperature of said ice-making compartment or the cold air temperature that is blown into said ice-making compartment when setting is above, it is low-intensity that said control part makes the electrical current of said heater.
10. according to the ice maker of any described freezing-cooling storeroom in the claim 1 to 8; It is characterized in that; Set temperature of refrigerating chamber when higher for when externally temperature is low, said control part reduces the rotating speed of the compressor in the said cooling cycle system and sends into the rotating speed of the pressure fan of cold air to said ice-making compartment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-214052 | 2009-09-16 | ||
| JP2009214052A JP4680311B2 (en) | 2009-09-16 | 2009-09-16 | Refrigeration refrigerator ice making equipment |
| PCT/JP2010/056296 WO2011033804A1 (en) | 2009-09-16 | 2010-04-07 | Refrigerator/freezer ice maker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102549359A true CN102549359A (en) | 2012-07-04 |
| CN102549359B CN102549359B (en) | 2014-04-16 |
Family
ID=43758417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080041190.1A Expired - Fee Related CN102549359B (en) | 2009-09-16 | 2010-04-07 | Refrigerator/freezer ice maker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4680311B2 (en) |
| CN (1) | CN102549359B (en) |
| MY (1) | MY153321A (en) |
| WO (1) | WO2011033804A1 (en) |
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| CN115803573A (en) * | 2020-07-22 | 2023-03-14 | 重庆海尔制冷电器有限公司 | Ice making system and method for making transparent ice |
| WO2022017344A1 (en) * | 2020-07-22 | 2022-01-27 | 重庆海尔制冷电器有限公司 | Ice-making system for making clear ice, and method |
| CN115803573B (en) * | 2020-07-22 | 2024-03-22 | 重庆海尔制冷电器有限公司 | Ice making system and method for making transparent ice |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011033804A1 (en) | 2011-03-24 |
| MY153321A (en) | 2015-01-29 |
| CN102549359B (en) | 2014-04-16 |
| JP4680311B2 (en) | 2011-05-11 |
| JP2011064373A (en) | 2011-03-31 |
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