WO2014092329A1 - Icemaker - Google Patents
Icemaker Download PDFInfo
- Publication number
- WO2014092329A1 WO2014092329A1 PCT/KR2013/009639 KR2013009639W WO2014092329A1 WO 2014092329 A1 WO2014092329 A1 WO 2014092329A1 KR 2013009639 W KR2013009639 W KR 2013009639W WO 2014092329 A1 WO2014092329 A1 WO 2014092329A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heater
- ice
- ice tray
- accommodating
- insulating layer
- Prior art date
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Classifications
-
- 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
Definitions
- the present invention relates to an ice maker, and more particularly, to an ice maker having a heating heater to smoothly ice the ice tray.
- the refrigerator In general, the refrigerator is used for long-term storage to avoid food damage, but in recent years, a variety of functions are being added in addition to the food storage function.
- the ice making function has been one of functions of a refrigerator in the past, but an ice maker which automatically generates ice by automatically making an ice making process and keeps it in an ice bank is one of items that can improve usability.
- Such ice makers can be classified into a torsion method, an ejector method, and a rotation method according to the ice-making method.
- the torsion method is a method of twisting the ice tray to drop the ice
- the ejector method is an ejector installed on the upper side of the ice tray to drop the ice from the ice tray drop
- the rotation method is the ice tray is rotated ice It is a way to drop.
- This type of ice maker can slim down the size of the entire ice maker, thereby increasing the effective volume in the refrigerator and simplifying the construction of the device.
- This type of ice maker when the ice tray is not smoothly iced, there is a problem in that the ice maker cannot be efficiently operated.
- Korean Patent Publication No. 2006-0009405 discloses an ice maker having a heater.
- the published ice maker has a configuration in which an ice heater for heating the ice tray is installed.
- Republic of Korea Patent Publication No. 2010-0138373 discloses a refrigerator ice maker.
- the ice maker disclosed is installed on one side of the ice tray and rotatably assembled by a motor embedded in the driving unit rotatably assembled between the water supply unit for supplying water to the ice tray and the driving unit and the water supply unit installed on one side of the ice tray.
- Bimetal or temperature fuses to shut off the power supply.
- the ice maker as described above is provided with a heater at the lower portion of the ice tray to smoothly move the ice, but such a heater has a structure in which a heating wire is installed inside the metal tube, and the heater has an inlet groove formed at the lower portion of the ice tray. And a heater supported by the locking step formed on the inner end side thereof.
- the heater formed on the lower side of the ice tray does not come in contact with the ice tray smoothly, so that the lower surface of the ice tray is heated to a set temperature, which requires a relatively long time.
- the time for which the heater is operated becomes long, the total temperature of the ice maker in which the ice maker is mounted increases. In this case, after the ice in the ice tray is iced into the ice bank, it takes a long time to cool the ice tray to the ice making temperature when the ice is prepared by receiving ice-making water again.
- the heater since the heater is installed to be exposed to the outside from the lower surface of the ice tray, the loss of heat generated from the heater is relatively high.
- the present invention is to solve the above problems, it is possible to reduce the heat loss of the heater installed in the lower portion of the ice tray for the ice, and to close the heater and the ice tray to shorten the time to heat up to the set ice temperature Its purpose is to provide an ice maker.
- Another object of the present invention is to provide an ice maker which can stably fix the overheat prevention part when the base cover is coupled to the ice tray.
- Ice tray of the present invention for solving the above technical problem
- An overheat detection unit A base cover coupled to the ice tray to protect the heater; and a sensing unit support unit including a support member extending to a side of the ice tray on one side of the base cover and having a coupling part formed to be in close contact with the ice tray by inserting the overheat detection unit. It includes;
- the ice maker according to the present invention can increase the area in which the heater and the ice tray directly contact each other, and can form a heater over the entire area of the ice tray, thereby reducing the time required to heat the ice tray to a predetermined temperature. Will be.
- the ice tray is iced to the ice bank, and the ice tray is cooled to the ice making temperature when the ice is prepared by supplying the ice making water again. This will reduce the time it takes to do so.
- the ice maker of the present invention supports the heater at the lower portion of the ice tray, thereby preventing the heater from being separated from the heater accommodating portion.
- the heater in the heater housing it is possible to prevent cold air from contacting the heater even if cold air is supplied to the ice tray.
- the installation of the heater installed on the lower surface of the ice tray can be easily visually inspected.
- Ice maker according to the present invention can be equipped with an overheat detection unit for detecting the overheat of the heater when the base cover surrounding the heater installed in the ice tray can reduce the work maneuver according to the installation of the overheat detection unit.
- FIG. 1 is a perspective view of an ice maker according to the present invention
- FIG. 2 is an exploded perspective view illustrating a state in which an ice tray, a heater, and a base cover are attached according to the present invention
- FIG. 3 is a cross-sectional view of the ice tray is installed with a heater
- FIG. 4 is a perspective view showing an embodiment of a heater
- FIG. 5 is a perspective view showing another embodiment of the heater
- FIG. 6 is a cross-sectional view showing a heater length buffer part formed on an ice tray
- FIG. 7 is a view illustrating a state in which a heater is formed in an ice tray in an ice maker according to an embodiment of the present invention
- FIG. 8 is a cross-sectional view showing a state in which a heater of another embodiment is accommodated in a heater accommodating unit in an ice maker according to an embodiment of the present invention
- FIG. 9 is a cross-sectional view of an ice tray of another embodiment in which the heater is accommodated in the heater accommodating portion in the ice maker according to the embodiment of the present invention.
- FIG. 10 is a perspective view showing another embodiment of an ice tray in which the heater of the present invention is installed;
- FIG. 11 is a cross-sectional view of the ice tray shown in FIG.
- FIG. 12 is a view showing another embodiment of the support rib of the base cover of the present invention.
- FIG. 13 is a side view of a partial ablation of the ice maker of the present invention.
- FIG. 14 is an exploded perspective view showing a state in which the overheat detection unit is installed by the ice tray and the base cover;
- FIG. 15 is a partial ablation perspective view showing another embodiment in a state where an overheat detection unit is installed by an ice tray and a base cover;
- 16 is a cross-sectional view showing another embodiment in which an overheat detection unit is installed by an ice tray and a base cover according to the present invention
- Figure 17 is a graph comparing the performance of the heater according to the embodiment of the present invention and the heater according to the prior art.
- the ice maker 10 includes an ice tray 20, an ejector 11, a control unit 12, a side guide 13, an ice bank 14, and a water supply pipe 15. , A water supply cup 16, an ice lever 17, and a heater 30.
- the ice tray 20 has an ice making space for receiving water therein.
- a plurality of partitions may be formed inside the ice tray 20 to separate the ice making space into a plurality of partitions.
- each of the separated ice making spaces in the ice tray 20 may be formed to correspond to the ejector pin 11b to be described later.
- the ice tray 20 receives water (ie, ice making water) through the water supply pipe 15 and the water supply cup 16. At this time, the water contained in the ice making space in the ice tray 20 is iced by the cold air of the ice making chamber (not shown).
- water ie, ice making water
- the controller 12 drives a motor (not shown) to rotate the ejector 11 clockwise.
- the ejector 11 includes an ejector shaft 11a connected to a motor and a plurality of ejector pins 11b formed to be spaced apart from each other on the ejector shaft 11a.
- the motor rotates the ejector shaft 11a in the clockwise direction
- the ejector pin 11b rotates together with the ejector shaft 11a to separate the ice in the ice tray 20 from the ice tray 20 and push it upward.
- the ice pushed up by the ejector pins 11b descends on the side guide 13 formed on one side of the ice tray 20 and is accommodated in the ice bank 14.
- the heater accommodating part 21 accommodating the heater 30 is formed on an outer circumferential surface of the ice tray 20.
- the heater accommodating part 21 may include a heater accommodating groove 21c formed in the pair of protrusions 21a and 21b protruding from the outer circumferential surface of the ice tray 20.
- the present invention is not limited thereto, and the heater accommodating part 21 may be formed in various shapes other than those capable of accommodating the heater 30.
- the heater accommodating part 21 may be made of only an accommodating groove formed by being drawn into the outer circumferential surface of the ice tray 20 without a separate protrusion.
- the heater 30 mounted on the heater accommodating part 21 is flexible as illustrated in FIG. 5, and includes a heat generating part 31 and a first insulating layer 32a formed surrounding the heat generating part 31. ), And a second insulating layer 32b surrounding the first insulating layer 31a.
- the heat generator 31 is a portion that generates heat when a voltage is applied.
- a general heating wire for example, nickel-chromium wire or copper-nickel wire, etc.
- the present invention is not limited thereto, and the heating unit 31 may be formed in a form in which the glass fibers are wound around the heating wire, or may be formed in a form in which the heating wire is wound around the glass fibers.
- the first insulating layer 32a may be formed by extruding silicon or rubber, and the second insulating layer 32b may be formed by adding a flame retardant to EVA (Ethylene Vinyl Acetate) or PE (Polyethylene).
- EVA Ethylene Vinyl Acetate
- PE Polyethylene
- the second insulating layer 32b may be cross-linked by electron beam irradiation.
- crosslinking treatment is performed on the second insulating layer 32b by electron beam irradiation, the heat resistance temperature of the second insulating layer 32b can be improved, and brittleness of the second insulating layer 32b can be compensated. Will be.
- the second insulating layer 32b is made by adding a flame retardant to polyethylene (PE)
- PE polyethylene
- H ions are dissociated from the polyethylene chain (PE chain) to form radicals. Is produced and the crosslinking proceeds by the bonding of the radicals.
- polyethylene has a network structure by the bonding of radicals, the heat resistance temperature of the second insulating layer 32b can be improved, and brittleness of the second insulating layer 32b can be compensated.
- the second insulating layer 32b may be formed by extruding on the first insulating layer 32a.
- the flexible heater 30 has a jig and a zigzag on the outer peripheral surface of the ice tray 20
- the second insulating layer 32b has been described as being made of electron beam crosslinked EVA (Ethylene Vinyl Acetate) or PE (Polyethylene), but the present invention is not limited thereto, and a shrink tube may be used as the second insulating layer 32b.
- the shrink tube can be made of silicone or rubber elastomer.
- the airtightness of the second insulating layer 32b can be improved and can withstand mechanical shock well.
- the shrink tube may be a shrink tube cross-linked by electron beam irradiation.
- the second insulating layer 32b may be made of cross-linking polyethylene (XLPE).
- XLPE is a crosslinked mixture of organic vulcanizing agents in polyethylene, and the polyethylene structure is made into a bonded state (ie, a crosslinked state) to impart thermosetting viscoelastic properties to polyethylene.
- the flexible heater 30 may include a heat generating unit 31 and one insulating layer 34 surrounding the heat generating unit 31.
- the insulating layer 34 may be EVA (Ethylene Vinyl Acetate) or PE (Polyethylene) cross-linked by electron beam irradiation.
- the present invention is not limited thereto, and the insulating layer 34 may be made of cross-linking polyethylene (XLPE).
- the heater 30 of the above-described type may include, for example, a cord heater, but the type of the heater 30 is not limited to the cord heater.
- the cord heater When the cord heater is used as the heater 30, since the cord heater is flexible and can be formed small in diameter (for example, 2 to 4 mm), the heater 30 can be formed on the outer circumferential surface of the ice tray 20. At this time, the area where the heater 30 and the ice tray 20 contact each other can be increased. That is, by forming the heater 30 in a zigzag shape on the outer circumferential surface of the ice tray 20, the area in which the heater 30 and the ice tray 20 contact each other can be improved.
- the heater 30 is illustrated as being formed in a zigzag shape on the outer circumferential surface of the ice tray 20, but is not limited thereto.
- the heater 30 may be closely disposed on the outer circumferential surface of the ice tray 30. It may be formed in various forms (eg, spiral form, etc.).
- the heater accommodating part 21 is illustrated here as being continuously formed along the heater 30, the present invention is not limited thereto, and the heater accommodating part 21 may be disconnected at regular intervals.
- the cord heater when used as the heater 30, the area in which the heater 30 and the ice tray 20 directly contact can be widened, and the heater 30 is spread over the entire area of the ice tray 20. Since it can be formed, it is possible to reduce the time taken to heat the ice tray 20 to a predetermined temperature. In this case, since the total temperature of the ice making chamber equipped with the ice maker 10 can be reduced, the ice in the ice tray 20 is iced to the ice bank 14, and then ice is supplied again to manufacture ice. When it is possible to reduce the time taken to cool the ice tray 20 to the ice making temperature. As a result, the total ice making time required to complete a cycle of ice making can be reduced, and power consumption consumed in the ice making process can be reduced.
- the heater 30 since the heater 30 has a substantially short heat transfer distance (about 1 to 2 mm) from the heat generator 31 to the ice tray 20, the heater 30 can be used even at low power (for example, 50 W). 20) can be heated to a predetermined temperature to reduce the power consumption used to operate the heater 30 itself.
- the heater length buffer part 22 is formed at an end portion of the heater accommodating part 21 according to the length error of the heater.
- the heater length buffer part 22 has a molding storage groove 22a wider than the heater housing groove 21c at the end side of the heater storage groove 21c, and is connected to the heater 30 and the lead wire 35.
- a molding part 22b is formed at a portion to be fitted into the molding receiving groove 22a.
- the molding accommodating groove 22a may extend from the accommodating groove 21c of the heater accommodating portion 21.
- the molding accommodating groove 22a may be formed such that a free space exists to the left and right of the molding part 22b when the molding part 22b is accommodated in the molding accommodating groove 22a. Is shorter or longer than the reference value, it can be used as it is without any design change, that is, the free space existing on the left and right sides of the molding portion 22b in the molding receiving groove (22a) is the length error of the heater 30 It can be called a buffer space according to.
- the inner bottom of the accommodating groove 21b is formed in a semicircular shape, and the accommodating groove 21c is formed in the heater accommodating portion 21 formed in the ice tray 20. Both sides of) may be made of planes parallel to each other. And, the heater 30 inserted therein may be formed in a circular shape. In this case, 1/2 or more of the outer peripheral surfaces of the heater 30 come into contact with the ice tray 30.
- the close contact member 26 may be formed between the heater 30 and the inner wall of the heater accommodating groove 21c.
- the close contact member 26 serves to prevent an empty space or air from being present between the heater 30 and the inner wall of the heater accommodating groove 21c. That is, the close contact member 26 serves to bring the heater 30 into close contact with the inner wall of the heater accommodating groove 21c.
- an adhesive member may be used as the close contact member 26.
- the heater 30 can be fixed while being in close contact with the inner wall of the heater storage groove 21c. At this time, when the thermally conductive adhesive member is used as the close contact member 26, the heat conduction efficiency from the heater 30 to the ice tray 20 can be increased.
- a separate sealing member may be filled in the empty space between the inner wall of the heater housing groove 21c and the heater 30 at the bottom of the heater housing groove 21c.
- the heater 30 can be fixed in the heater housing groove 21c while reducing the heat loss of the heater 30.
- the sealing member may be made of the same material as the close contact member 26.
- the cross section of the heater accommodating groove 21c may be formed in a quadrangular shape in which a lower portion thereof is open, and the insulating portion 34 or the second insulating portion of the heater 30 inserted therein is provided.
- 32b) may have a quadrangular shape corresponding to the heater accommodating groove 21c.
- the heater 30 comes into contact with the accommodating groove 121-2 or more of the area of the outer circumferential surface of the heater 30.
- the heat transfer efficiency to (20) can be improved.
- the area to which the heater 30 is exposed to the outside may be minimized to reduce heat loss.
- an upper end of the heater storage groove 21c is formed in a semicircle shape, and a cross section of the insulation portion of the heater 30 inserted into the heater storage groove 21c is formed in a semicircular shape.
- the area where the heater 30 is in contact with the ice tray 20 can be widened while the area where the heater 30 is exposed to the outside can be reduced.
- the heater 30 is fixed to the heater accommodating groove 21c through a fitting coupling method, but the heater 30 is the heater accommodating groove 21c.
- the heater 30 may be fixed to the heater storage groove 21c by using both a fitting method and an adhesive method, and may be fixed to the heater storage groove 21c using various other coupling methods. have.
- FIG 8 is a view showing another embodiment in which the heater is accommodated in the heater receiving unit in the ice maker according to the embodiment of the present invention.
- an auxiliary protrusion 35 may be formed on an outer circumferential surface of the heater 30.
- the auxiliary protrusion 35 may be formed to be inclined downward.
- the second insulator 32b or the insulator 34 is made of a soft insulating material. 33 is folded by the inner wall of the heater accommodating groove 21c to be inserted in close contact with the outer circumferential surface of the heater 30.
- the auxiliary protrusion 35 is shown as one, but is not limited to this may be formed in two or more.
- An auxiliary protrusion insertion groove (not shown) corresponding to the auxiliary protrusion 35 may be further formed in the heater receiving groove 21c. In this case, when the heater 30 is inserted into the heater storage groove 21c, the auxiliary protrusion 35 is inserted into the auxiliary protrusion insertion groove (not shown) to fix and support the heater 30.
- the protrusions 21a and 21b for protruding to the outer circumferential surface of the ice tray 20 to form the heater housing grooves have a pair of protrusions 21a and 21b as shown in FIG. 9. It may be formed to protrude in the horizontal direction from the outer peripheral surface of the ice tray 20. In this case, the heater 30 may be easily installed in the heater accommodating groove 21c formed by the protrusions 21a and 21b.
- FIG. 10 and 11 show another embodiment of the ice tray, and FIG. 10 is a bottom view of the ice tray, and FIG. 11 is a cross-sectional view of the ice tray.
- the heater accommodating portion 21 protrudes from the outer circumferential surface of the ice tray 20 so that one of the pair of first and second protrusions 25 and 26 forming the heater accommodating groove is an adjacent protrusion 26. Longer than) In this case, when the heater 30 is turned off, the area in contact with the cold air of the ice tray 20 may be expanded to improve the heat dissipation effect of the ice tray 20.
- the 1-8 heater accommodating parts 21a-1 to 21a-8 are sequentially arranged from one side of the ice tray 20 to the other side of the ice tray 20. Can be formed.
- eight heater receiving parts 21a-1 to 21a-8 are illustrated on the outer circumferential surface of the ice tray 20, the present invention is not limited thereto and may be formed in various numbers.
- the first protrusion 25 formed adjacent to one side of the ice tray 20 among the pair of first and second protrusions 25 and 26 forming the accommodation grooves in the first to eighth heater accommodating parts 21a-1. ) May be formed in a length corresponding to the diameter of the heater 30 on the outer circumferential surface of the ice tray 20. In this case, when the worker looks at the ice tray 20 from one side of the ice tray 30, the heater 30 can be visually inspected whether or not the heater 30 is tightly inserted into each heater accommodating portion 21a-1. do.
- the second protrusion 26 of the pair of first and second protrusions 25 and 26 may protrude to a longer length than the first protrusion 25 in the first heater accommodating part 21a-1.
- the second protrusion 26 of the first heater accommodating portion 21a-1 is formed so as not to protrude from the first protrusion 25 ′ of the second heater accommodating portion 21a-2.
- the operator of the ice tray 20 When looking at the ice tray 20 from one side, it is difficult to visually check whether the heater 30 is inserted in close contact with the second heater accommodating portion 21a-2.
- the second protrusion 26 formed as described above serves as a heat dissipation fin that emits heat of the ice tray 20 heated by the heater 30 to the outside when the heater 30 is turned off. That is, after the ice in the ice tray 20, the ice must be produced by receiving ice-making water again. At this time, in order to cool the ice tray 20 to the ice making temperature, the heat of the ice tray 20 heated by the heater 30 must be quickly discharged to the outside. Accordingly, the second protrusions 26 are formed to have a longer length than the first protrusions 25 so as to widen the area where the ice trays 20 come into contact with cold air, thereby rapidly cooling the ice trays 20 to the ice making temperature. do. As such, the second protrusion 26 also serves as a heat radiation fin.
- a base cover 40 may be further provided on the lower side of the ice tray of the ice maker 10 according to the present invention.
- the base cover 40 is coupled to the ice tray 20 to surround the lower portion of the ice tray 20, the heater cover groove 21c of the heater support portion 21 formed in the lower portion of the ice tray 20 Support ribs 41 for supporting the heater 30 is inserted.
- the support rib 41 may be formed on the inner surface of the base cover 40 corresponding to the heater receiving grooves 12c.
- the support rib 41 may serve to cover the end of the hydraulic groove.
- a plurality of through holes 42 are formed in the base cover 40 so that the cold air is transferred to the ice tray 20, and it is preferable not to be interfered with, and the space between the support ribs 41 is cold air. It is desirable to be a passage to move.
- shielding portions 43 may be formed at end portions of the support ribs 41.
- the shield 43 may extend from the end of the support rib 41 to the left and right.
- the shielding portion 43 may be formed to block the inlet of the heater housing groove (21c), in this case, the heater housing groove (21c) in which the heater 30 is installed is cut off from the outside.
- the shield 43 is described as extending from the end of the support rib 41 to the left and right, but is not limited thereto, the shield 43 is formed separately from the support rib 41 to support the rib It may be bound to the end of (41).
- FIG. 12 shows another embodiment of the support ribs installed on the base cover.
- the shielding portion is not formed at the end of the support rib 41, and may be formed in contact with the heater 30 installed in the heater accommodating groove 21c.
- the support ribs 41 support the heater 30, thereby preventing the heater 30 from being separated from the heater storage groove 21c.
- the width of the shielding portion 43 formed at the distal end of the support rib 41 is substantially the same as the width of the pressure receiving portion, and is inserted into the heater accommodating groove 21c. 30).
- the shield 43 may block the heater 30 from the outside while supporting the heater 30.
- a shield 43 formed at an end of the support rib 41 may be formed to block an inlet of the heater accommodating groove 21c.
- the heater support protrusion 43a may be formed on the upper surface side of the shield 43 to be in contact with the heater 30. In this case, it is possible to prevent the shield 43 from being deformed due to the heater 30 by reducing the area where the shield 43 is in contact with the heater 30.
- the shield 43 when the base cover 40 and the support ribs 41 are made of synthetic resin, when the shield 43 comes into contact with the heater 30, the shield 43 and the support ribs due to the heat generated by the heater 30. (41) and the like may be deformed, and the heater support protrusion 43a is formed on the upper surface of the shield 43 to reduce the area where the shield 43 is in contact with the heater 30 from the heater 30. Heat transfer to the shield 43 can be reduced. This can prevent the shield 43 and the support rib 41 from being deformed due to the heater 30.
- the shielding portion 43 formed at the end of the support rib 41 has a width between the first and second protrusions 25 and 26 and the outer edge of the heater receiving groove. It may be formed to be the same or to surround the first and second protrusions 25 and 26 forming the receiving groove, as shown in Figure 12 (e).
- a sealing member may be filled in the empty space between the inner wall of the heater housing groove 21c and the heater 30 in the heater housing groove 21c.
- the heater 30 may be sealed in the heater accommodating groove 21c to reduce heat loss.
- the sealing member serves as a buffer to prevent the shield 43 and the support rib 41 from being deformed by heat generated by the heater 30.
- the first and second overheat detection units 51 and 52 are respectively connected to the first and second lead wires 36 and 37 connected to both end sides of the heater. Can be installed.
- the overheat detection unit may be installed on one side of the first and second lead wires.
- the first and second lead wires 36 and 37 are connected to terminals of the main board 50 installed in the control box 12, respectively.
- the first and second overheat detection units 51 and 52 serve to prevent the heater 30 from overheating.
- the first overheat detection unit 51 and the second overheat detection unit 52 detect whether the temperature of the heater 30 exceeds a preset threshold temperature to prevent the heater 30 from overheating. Can be.
- the present invention is not limited thereto, and the first overheat detection unit 51 and the second overheat detection unit 52 may detect whether an overcurrent flows through the heater 30 to prevent the heater 30 from overheating. .
- one side of the base cover 40 extends between the control box 12 and the ice tray 20 and the coupling parts 61 and 62 to which the first and second overheat detection parts 51 and 52 are coupled. It is provided with a sensing unit support unit 60 having a support member 63 is formed. The support member 63 of the sensing unit support unit 60 is located between the control box 12 and the ice tray 20 so that interference does not occur when the base cover 40 and the ice tray 20 are coupled to each other. It is preferable to avoid.
- the coupling parts 61 and 62 may be formed of insertion grooves formed on the side surfaces of the coupling parts 61 and 62 so that the first overheat detection parts 51 and 52 may be coupled to each other. In this case, the first overheat detection unit 51 and the second overheat detection unit 52 may be inserted into and inserted into the insertion grooves forming the coupling units 61 and 62, but are not limited thereto. Can be combined in a way.
- the support member 63 is shown that the coupling portion 61, 62 is formed integrally with the base cover 40, but is not limited thereto, and the support member 63 is separate from the base cover 40. After being manufactured as may be coupled to the base cover 40.
- the first overheat detection unit 51 and the second overheat detection unit 52 are in contact with the ice tray 20 while being supported by the coupling units 61 and 62.
- the first insertion hole 64 may be formed in the support member 63.
- the first insertion hole 64 is coupled to the coupling parts 61 and 62 after the overheat detection unit 51 and the second overheat detection unit 52 are inserted through the first insertion hole 64, respectively.
- the first and second lead wires 36 and 37 may be drawn out through the first insertion hole 64 to be connected to terminals of the main board 50, respectively.
- a second insertion hole 65 is formed below the first insertion hole 64 to connect a lead wire connected to the first overheat detection unit 51 or the second overheat detection unit 52. It may be separated and inserted, and a molding housing 66 to which the molding unit 22b of the heater is fixed may be formed at the control box side of the support member 63.
- the molding accommodating part 66 may be fixed to the molding part 21b of the heater, and the molding accommodating part 66 may be spaced left and right or up and down when the molding part 22b is accommodated in the molding accommodating part. It can be formed so that space exists. In this case, even if the length of the heater 30 is made a little shorter or longer than the reference value, it can be used as it is without a separate design change. That is, the free space existing on the left, right, and top of the molding unit in the molding accommodating unit may be referred to as a buffer space according to the length error of the heater. In this case, the side of the control box 12 corresponding to the molding housing 66 is formed with a lead so that the molding housing 66 can be inserted.
- the support member 63 communicates with the coupling parts 61 and 62, and the first and second overheat detection parts 51 and 52 respectively have through holes for insertion. 65) can be formed.
- the through holes 65 may insert the first and second overheat detection parts 51 and 52, respectively, in a state in which the base cover 40 and the ice tray 20 are coupled to each other.
- the first overheat detection unit 51 and the second overheat detection unit 52 are coupled to the coupling portions 61 and 62 formed on the support member 63 of the base cover 40. Therefore, the first overheat detection unit 51 and the second overheat detection unit 52 can be stably fixed, and the operation of fixing the first overheat detection unit 51 and the second overheat detection unit 52 is simple.
- the first and second lead wires 36 and 37 can be arranged.
- the first overheat detection unit 51 and the second overheat detection unit 52 may be connected to the ice tray 20.
- the first overheat detection unit 51 and the second overheat detection unit 52 are primarily in close contact with the ice tray 20 by the base cover 40, and secondly by the control box 12. It is in close contact with the ice tray 20.
- Figure 17 is a graph comparing the performance of the heater of the ice maker according to the present invention and the heater according to the prior art.
- the heater 30 takes a first time t1 to raise the temperature of the ice tray 20 to a preset temperature. It can be seen that the heater takes a second time t2 longer than the first time t1 to raise the temperature of the ice tray 20 to a predetermined temperature. This increases the area where the heater 30 is in direct contact with the ice tray 20 by forming the heater 30 in the same shape as a cord heater, and forms the heater 30 over the entire area of the ice tray 20 to ice This is because the whole tray 30 was heated uniformly. Further, this is because the cold air is blocked from contacting the heater 30 through the blocking unit.
- the power used in the heater 30 according to an embodiment of the present invention is lower than the power used in the heater according to the prior art. This is because the heater 30 according to an embodiment of the present invention can heat the ice tray 20 to a predetermined temperature even at low power due to a short heat transfer distance.
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Abstract
Description
Claims (34)
- 아이스 트레이;Ice tray;상기 아이스 트레이에 형성되는 적어도 하나의 히터 수납부; 및At least one heater accommodating portion formed in the ice tray; And연질의 외피 또는 탄성력을 갖는 외피를 구비하여 상기 히터 수납부 내에 밀착되어 수납되고, 상기 아이스 트레이를 가열하는 히터와,A heater having a soft outer shell or an outer shell having elastic force, the heater being tightly accommodated in the heater accommodating unit and heating the ice tray;상기 아이스 트레이와 결합되는 것으로, 상기 히터수납부에 장착된 히터를 를 가압하여 히터수납부에 히터를 밀착시키기 위한 지지리브를 구비한 베이스커버를 포함하는 것을 특징으로 하는 제빙기.And a base cover coupled to the ice tray, the base cover having a support rib for pressurizing the heater mounted on the heater storage unit to closely contact the heater to the heater storage unit.
- 제1항에 있어서, The method of claim 1,상기 히터는,The heater,코드 히터(Cord Heater)인 것을 특징으로 하는 제빙기.Ice maker, characterized in that the cord heater (Cord Heater).
- 제1항에 있어서,The method of claim 1,상기 히터수납부는 상기 아이스 트레이의 외주면에 지그 재그 또는 스파이럴 형태로 형성된 것을 특징으로 하는 제빙기.The heater accommodating unit, characterized in that formed on the outer circumferential surface of the ice tray in a zig-zag or spiral form.
- 제1항에 있어서,The method of claim 1,상기 히터 수납부는, 상기 아이스 트레이의 외주면에 형성되는 히터수납홈을 포함하며, 상기 히터는, 상기 히터수납홈에 삽입되어 밀착되는 것을 특징으로 하는 제빙기.The heater accommodating unit includes a heater accommodating groove formed on an outer circumferential surface of the ice tray, and the heater is inserted into the heater accommodating groove and is in close contact with the ice maker.
- 제4항에 있어서,The method of claim 4, wherein상기 히터는,The heater,상기 히터 수납홈의 형상과 대응되는 형상으로 형성되어 상기 히터 수납홈과 밀착되고, 다각형 및 다각형과 반원형이 조합된 형태 중 어느 하나로 형성되는 것을 특징으로 하는 제빙기.The ice maker is formed in a shape corresponding to the shape of the heater accommodating groove is in close contact with the heater accommodating groove, and formed in any one of a combination of polygons, polygons and semi-circles.
- 제4항에 있어서,The method of claim 4, wherein상기 제빙기는,The ice maker,상기 히터 수납홈의 내벽과 상기 히터 사이에 형성되는 밀착 유지 부재를 더 포함하는 것을 특징으로 하는 제빙기.Ice maker further comprises a close contact member formed between the inner wall of the heater receiving groove and the heater.
- 제4항에 있어서,The method of claim 4, wherein상기 히터는, The heater,상기 히터의 외주면에 형성되고, 상기 히터를 상기 히터 수납홈 내에서 고정 지지하는 적어도 하나의 보조 돌기를 포함하는 것을 특징으로 하는 제빙기.And an at least one auxiliary protrusion formed on an outer circumferential surface of the heater to fix and support the heater in the heater accommodating groove.
- 제7항에 있어서,The method of claim 7, wherein상기 히터 수납부는,The heater accommodating unit,상기 히터 수납홈 내에 상기 보조 돌기와 대응되는 형상으로 형성되고, 상기 보조 돌기가 삽입되는 보조 돌기 삽입홈을 더 포함하는 것을 특징으로 하는 제빙기.And an auxiliary protrusion insertion groove formed in a shape corresponding to the auxiliary protrusion in the heater accommodating groove and into which the auxiliary protrusion is inserted.
- 제1항에 있어서,The method of claim 1,상기 제빙기는,The ice maker,상기 아이스 트레이에 형성되고, 상기 히터의 말단과 상기 히터에 전원을 공급하는 리드선의 일단이 연결된 부위에 형성되는 몰딩부가 수납되는 몰딩 수납홈을 더 포함하며,A molding accommodating groove formed in the ice tray, the molding accommodating groove accommodating a molding part formed at a portion at which one end of the heater is connected to one end of the lead wire for supplying power to the heater,상기 몰딩 수납홈은, 상기 몰딩부의 좌우에 상기 히터의 길이 오차에 따른 완충 공간이 각각 형성되는 것을 특징으로 하는 제빙기.The molding accommodating groove, the ice maker, characterized in that the buffer space according to the length error of the heater is formed on each side of the molding part.
- 제1항에 있어서,The method of claim 1,상기 지지 리브는 상기 지지리부의 말단부에 형성되어 상기 히터 수납부 내를 차폐시키는 차폐부를 더 포함하는 것을 특징으로 하는 제빙기.The support rib further comprises a shield formed on the end of the support portion to shield the inside of the heater housing.
- 제10항에 있어서,The method of claim 10,상기 히터 지지부는,The heater support unit,상기 차폐부에서 돌출되어 형성되고 상기 히터와 접촉하는 히터지지돌기를 더 포함하는 것을 특징으로 하는 제빙기.And an heater support protrusion protruding from the shield and contacting the heater.
- 제1항에 있어서,The method of claim 1,상기 히터 수납부는, 상기 아이스 트레이의 외주면에 형성되고 히터가 삽입되는 히터 수납홈을 포함하며,The heater accommodating part includes a heater accommodating groove formed on an outer circumferential surface of the ice tray and into which a heater is inserted.상기 제빙기는, 상기 히터 수납홈의 내벽과 상기 히터 사이의 빈 공간을 충진하며 형성되는 실링 부재를 더 포함하는 것을 특징으로 하는 제빙기.The ice maker further comprises a sealing member formed to fill an empty space between the inner wall of the heater accommodating groove and the heater.
- 제10항에 있어서,The method of claim 10,상기 히터 수납부는, The heater accommodating unit,상기 아이스 트레이의 외주면에 돌출되어 형성되는 한 쌍의 돌기부 및 상기 한 쌍의 돌기부 사이에 형성되고 상기 히터가 삽입되는 수납홈을 포함하며,It includes a pair of protrusions protruding on the outer peripheral surface of the ice tray and the receiving groove is formed between the pair of protrusions, the heater is inserted,상기 차폐부는,The shield,상기 지지 리브의 말단에 형성되고, 상기 한 쌍의 돌기부에 접촉되어 상기 히터로부터 전달되는 열을 상기 한 쌍의 돌기부를 통해 방열시키는 것을 특징으로 하는 제빙기.An ice maker formed at an end of the support rib and dissipating heat transmitted from the heater in contact with the pair of protrusions through the pair of protrusions.
- 제1항에 있어서,The method of claim 1,상기 히터 수납부를 이루는 히터 수납홈에 충진되어 상기 히터를 지지하는 실링 부재를 더 포함하는 것을 특징으로 하는 제빙기.Ice maker further comprises a sealing member filled in the heater receiving groove constituting the heater housing to support the heater.
- 제1항에 있어서,The method of claim 1,상기 히터 수납부는, The heater accommodating unit,상기 아이스 트레이의 외주면에서 돌출되어 형성되는 한 쌍의 돌기부를 포함하며, 상기 한 쌍의 돌기부 중 어느 하나의 돌기부는 다른 하나의 돌기부보다 길게 돌출되는 것을 특징으로 하는 제빙기.And a pair of protrusions protruding from an outer circumferential surface of the ice tray, wherein one of the protrusions of the pair of protrusions protrudes longer than the other protrusion.
- 제15항에 있어서, The method of claim 15,상기 히터 수납부는,The heater accommodating unit,반 원기둥 형상의 아이스 트레이의 외주면에 복수 개가 형성되고, 상기 한 쌍의 돌기부 중 상기 아이스 트레이의 일측 또는 타측에 인접한 제1 돌기부는 상기 히터의 직경과 대응하는 길이로 돌출되며, 상기 한 쌍의 돌기부 중 제2 돌기부는 상기 제1 돌기부보다 길게 돌출되어 형성되는 것을 특징으로 하는 제빙기.A plurality of semi-cylindrical ice trays are formed on the outer circumferential surface thereof, and among the pair of protrusions, a first protrusion adjacent to one side or the other side of the ice tray protrudes to a length corresponding to the diameter of the heater, and the pair of protrusions The ice making machine of claim 2, wherein the second protrusion protrudes longer than the first protrusion.
- 제16항에 있어서,The method of claim 16,상기 한 쌍의 돌기부 중 제2 돌기는,The second projection of the pair of projections,이웃하는 상기 히터 수납부의 한 쌍의 돌기부 중 제1 돌기부의 길이 이하로 돌출되어 형성되는 것을 특징으로 하는 제빙기.Ice making machine, characterized in that protruding below the length of the first protrusion of the pair of protrusions adjacent to the heater housing.
- 아이스 트레이;Ice tray;상기 아이스 트레이에 형성되는 적어도 하나의 히터 수납부; 및At least one heater accommodating portion formed in the ice tray; And연질의 외피 또는 탄성력을 갖는 외피를 구비하여 상기 히터 수납부 내에 밀착되어 수납되고, 상기 아이스 트레이를 가열하는 히터와,A heater having a soft outer shell or an outer shell having elastic force, the heater being tightly accommodated in the heater accommodating unit and heating the ice tray;일측이 상기 히터에 연결되는 리드선에 설치되어 히터의 과열여부를 감지하는 과열감지부와;An overheat detection unit having one side installed at a lead wire connected to the heater to detect whether the heater is overheated;상기 아이스 트레이와 결합되어 히터를 보호하는 베이스 커버와, A base cover which is combined with the ice tray to protect the heater;상기 베이스커버의 일측에 아이스트레이의 측면측으로 연장되며 상기 과열감지부가 삽입되어 아이스 트레이와 밀착되도록 하는 결합부가 형성된 지지부재를 포함한 감지부지지유닛을 구비한 것을 특징으로 하는 제빙기.And a sensing unit support unit including a support member formed at one side of the base cover and extending to a side of the ice tray and having a coupling portion formed therein so that the overheat sensing unit is in close contact with the ice tray.
- 제18항에 있어서,The method of claim 18,상기 지지부재는 아이스트레이와 밀착되며 아이스 트레이와 결합되는 제어 박스의 사이에 위치되는 것을 특징으로 하는 제빙기.The support member is in contact with the ice tray and ice maker, characterized in that located between the control box coupled to the ice tray.
- 제 18항에 있어서, The method of claim 18,상기 결합부가 형성된 지지부재에는 리드선이 통과하는 적어도 하나의 삽입홀이 형성된 것을 특징으로 하는 제빙기.Ice making machine characterized in that at least one insertion hole through which the lead wire is formed in the support member formed with the coupling portion.
- 제18항에 있어서, The method of claim 18,상기 지지부재의 결합부는, Coupling portion of the support member,상기 연장 프레임에서 상기 아이스 트레이와 대향하는 면에 형성되는 삽입홈을 포함하며, 상기 과열 감지부는, 상기 삽입홈 내에 삽입되어 상기 아이스 트레이와 밀착되는 것을 특징으로 하는 제빙기.And an insertion groove formed on a surface of the extension frame facing the ice tray, wherein the overheat detection unit is inserted into the insertion groove to be in close contact with the ice tray.
- 제21항에 있어서, The method of claim 21,상기 지지부재에는 상기 결합부와 연통되는 관통홀이 형성되어 상기 과열 감지부가, 상기 관통홀을 통해 상기 결합부에 삽입되는 상기 아이스 트레이와 밀착되는 것을 특징으로 하는 제빙기.The support member is formed with a through-hole communicating with the coupling portion, the overheat detection unit, characterized in that in close contact with the ice tray inserted into the coupling portion through the through-hole.
- 제18항에 있어서, The method of claim 18,상기 히터는, 플렉서블한 히터이고,The heater is a flexible heater,상기 히터와 상기 리드선의 연결 부위에 형성되는 몰딩부가 형성되고, 상기 상기 몰딩부를 수납하는 몰딩 수납부가 지지부재에 형성된 것을 특징으로 하는 제빙기.And a molding part formed at a connection portion between the heater and the lead wire, and a molding accommodating part accommodating the molding part is formed in a supporting member.
- 제18항에 있어서,The method of claim 18,상기 베이스 커버에는 상기 히터수납부에 장착된 히터를 를 가압하여 히터수납부에 히터를 밀착시키기 위한 지하는 지지리브를 구비한 것을 특징으로 하는 제빙기. The base cover is provided with a support rib for supporting the heater in close contact with the heater by pressing the heater mounted on the heater housing.
- 아이스 트레이;Ice tray;상기 아이스 트레이에 형성되는 적어도 하나의 히터 수납부; 및At least one heater accommodating portion formed in the ice tray; And연질의 외피 또는 탄성력을 갖는 외피를 구비하여 상기 히터 수납부 내에 밀착되어 수납되고, 상기 아이스 트레이를 가열하는 히터를 포함하는 것을 특징으로 하는 제빙기.An ice maker comprising: a heater having a soft outer shell or an outer shell having an elastic force and being tightly accommodated in the heater accommodating unit and heating the ice tray.
- 제 25항에 있어서, The method of claim 25,상기 히터는 발열부와, 상기 발열부를 감싸는 것으로, 연질 또는 탄성력을 갖는 재질로 이루어지는 제1 절연층; 및 상기 제1 절연층을 감싸며 형성되는 제2 절연층을 포함하며, The heater may include a heat generating unit and a first insulating layer surrounding the heat generating unit and formed of a material having a soft or elastic force; And a second insulating layer formed to surround the first insulating layer,상기 제2 절연층은 가교 처리된 것을 특징으로 하는 제빙기.And the second insulating layer is cross-linked.
- 제26항에 있어서,The method of claim 26,상기 제2 절연층은, 제 1절연층의 외주면에 압출 가공하여 형성되는 것을 특징으로 하는 제빙기.The second insulating layer is formed by extruding the outer peripheral surface of the first insulating layer.
- 제26항에 있어서,The method of claim 26,상기 제2 절연층은, 전자선 조사로 가교 처리된 EVA 또는 PE로 이루어지는 것을 특징으로 하는 제빙기. The second insulating layer is made of EVA or PE cross-linked by electron beam irradiation.
- 제26항에 있어서,The method of claim 26,상기 제2 절연층은, 난연제를 첨가하여 전자선 조사로 가교 처리된 EVA 또는 PE로 이루어지는 것을 특징으로 하는 제빙기.And said second insulating layer is made of EVA or PE crosslinked by electron beam irradiation by adding a flame retardant.
- 제26항에 있어서,The method of claim 26,상기 제2 절연층은, 전자선 조사로 가교 처리된 수축 튜브인 것을 특징으로 하는 제빙기. And said second insulating layer is a shrinkage tube crosslinked by electron beam irradiation.
- 제26항에 있어서,The method of claim 26,상기 제2 절연층은, XLPE로 이루어진 것을 특징으로 하는 제빙기. The second insulating layer is an ice maker, characterized in that made of XLPE.
- 제 25항에 있어서, The method of claim 25,상기 히터는 발열부와 상기 발열부를 감싸며 형성되고, 연질 또는 탄성력을 갖는 재질로 이루어지는 절연층을 포함하며, 상기 절연층은 가교 처리된 것을 특징으로 하는 제빙기.The heater is formed surrounding the heat generating portion and the heat generating portion, and comprises an insulating layer made of a material having a soft or elastic force, wherein the insulating layer is an ice maker characterized in that the cross-linking process.
- 제32항에 있어서,33. The method of claim 32,상기 절연층은, 전자선 조사로 가교 처리된 EVA 또는 PE로 이루어지는 하는 제빙기.The said insulating layer is an ice maker which consists of EVA or PE bridge | crosslinked by electron beam irradiation.
- 제32항에 있어서,33. The method of claim 32,상기 절연층은, 난연제를 첨가하여 전자선 조사로 가교 처리된 EVA, PE 또는 XLPE 중 선택된 하나로 이루어진 것을 특징으로 하는 제빙기.The insulating layer is an ice maker, characterized in that made of one selected from EVA, PE or XLPE cross-linked by electron beam irradiation by adding a flame retardant.
Priority Applications (2)
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US14/651,180 US20160003514A1 (en) | 2012-12-10 | 2013-10-28 | Icemaker |
CN201390000975.3U CN204806755U (en) | 2012-12-10 | 2013-10-28 | Ice producing machine |
Applications Claiming Priority (6)
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KR10-2012-0142886 | 2012-12-10 | ||
KR20120142886 | 2012-12-10 | ||
KR10-2013-0015451 | 2013-02-13 | ||
KR1020130015451A KR102213215B1 (en) | 2013-02-13 | 2013-02-13 | Ice maker |
KR1020130016318A KR20140074795A (en) | 2012-12-10 | 2013-02-15 | Icemaker |
KR10-2013-0016318 | 2013-02-15 |
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Cited By (2)
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CN106642867A (en) * | 2015-11-04 | 2017-05-10 | 三星电子株式会社 | Ice maker and refrigerator having the same |
CN114838550A (en) * | 2018-11-16 | 2022-08-02 | Lg电子株式会社 | Ice maker and refrigerator |
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2013
- 2013-10-28 WO PCT/KR2013/009639 patent/WO2014092329A1/en active Application Filing
Patent Citations (5)
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KR20030008103A (en) * | 2001-07-16 | 2003-01-24 | 주식회사 엘지이아이 | Ice maker for refrigerator |
JP2005156139A (en) * | 2003-11-27 | 2005-06-16 | Lg Electronics Inc | Ice maker for refrigerator |
JP2006179339A (en) * | 2004-12-22 | 2006-07-06 | Fujikura Ltd | High heatproof coaxial cable |
KR20060009405A (en) * | 2006-01-12 | 2006-01-31 | 이재한 | Ice maker having improved heater |
US20120216561A1 (en) * | 2009-10-08 | 2012-08-30 | Nam Gi Lee | Ice maker and refrigerator including the same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106642867A (en) * | 2015-11-04 | 2017-05-10 | 三星电子株式会社 | Ice maker and refrigerator having the same |
CN114838550A (en) * | 2018-11-16 | 2022-08-02 | Lg电子株式会社 | Ice maker and refrigerator |
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