JP5242740B2 - Ice making device and refrigerator-freezer provided with the same - Google Patents

Description

  The present invention relates to an ice making device and a refrigerator-freezer provided with the ice making device.

  An example of a refrigerator-freezer provided with an ice making device is described in Japanese Patent No. 4443356 (Patent Document 1). Inside the refrigerator-freezer, an ice tray that is a part of the ice making device is held horizontally. The ice tray includes a plurality of ice making cells arranged in a matrix. A certain amount of water is supplied to the ice tray, and the water stored in the ice tray becomes ice. After the water in the ice tray is frozen, the ice tray is rotated and twisted. When the ice tray is twisted, the ice in each ice making cell is dropped from the ice making cell and dropped to be stored in an ice bank prepared in advance below.

  When making ice in a refrigerator, if the temperature of the water drops rapidly, ice with bubbles trapped inside will be completed. Therefore, it becomes white and cloudy ice. To make ice with high transparency (hereinafter referred to as “transparent ice”), there is a method of cooling slowly while monitoring the temperature so that the temperature of water does not drop too rapidly. This is because if the air is slowly cooled, the air in the water can easily escape from the water surface to the outside, and the probability that air bubbles are trapped inside can be reduced.

  In order to produce transparent ice in such an ice tray, it is necessary to monitor the temperature. In order to grasp the actual temperature, a thermistor is generally used. In the refrigerator-freezer shown in FIG. 18 of Patent Document 1, a thermistor is attached to the back surface of the ice tray. The thermistor is disposed at a position where the thermistor is pushed to the deepest, that is, the uppermost position in the gap between the ice making cells.

Japanese Patent No. 4443356

  In an ice making device or a refrigerator-freezer based on the prior art, the amount of water that can be made is constant. In order to make transparent ice, it is necessary to cool slowly while monitoring the temperature. Therefore, a mechanism for monitoring the temperature is also incorporated around the ice tray, and it is not easy to replace the ice tray. In particular, in the case where a structure for dropping ice from an ice tray that has finished making ice is also provided, the user often has a structure in which the ice tray cannot be replaced. The temperature monitoring mechanism for cooling slowly is based on the premise that a certain amount of water is in the ice tray, so normal operation cannot be guaranteed by simply reducing the amount of water in the same ice tray. .

  In an ice making apparatus or a refrigerator-freezer based on the prior art, it was impossible to intentionally switch modes using the same ice tray to produce transparent ice of different sizes.

  In an automatic ice maker, it is desirable to measure the temperature to determine whether the water in the ice tray is frozen, even when making ice that is not transparent ice. However, the temperature could not be measured properly when the amount of water was simply reduced in the same ice tray.

  Therefore, an object of the present invention is to provide an ice making device or a refrigerator-freezer that can automatically make different sizes of ice.

In order to achieve the above object, an ice making device according to the present invention includes an ice tray. The ice tray includes a first ice making cell and a second ice making cell arranged so as to be adjacent in the horizontal direction. Each of the first ice making cell and the second ice making cell has a bottom, a cell upper end, and plate-like side walls extending from the bottom toward the cell upper end to form a slope. A portion of the side wall of the first ice making cell that is closer to the second ice making cell and a portion of the side wall of the second ice making cell that is closer to the first ice making cell are inverted V-shaped when viewed in cross-sectional shape. Make a shape. The ice tray has a maximum water amount mode that satisfies at least the maximum water amount in the first ice making cell, and a minimum water amount mode that satisfies at least the minimum water amount that is 1/2 or less of the maximum water amount in the first ice making cell. . A temperature measuring tool is disposed so as to be at least close to the side wall of the first ice-making cell, below the position of the water surface in the minimum water amount mode in the inverted V-shaped inner space , A member that defines the position of the temperature measuring tool while in contact with the temperature measuring tool extends from the ice tray .

  According to the present invention, the temperature of the water in the first ice making cell can be appropriately measured even when the amount of water is the minimum, and different sizes of transparent ice can be made automatically.

It is a front view in the state where the door of the refrigerator-freezer based on the present invention was opened. It is sectional drawing seen from the 1st direction of the ice making apparatus with which the refrigerator-freezer based on this invention is equipped. It is sectional drawing seen from the 2nd direction of the ice making apparatus with which the refrigerator-freezer based on this invention is equipped. It is a disassembled perspective view of the ice tray, thermistor, etc. which are used for the ice making apparatus based on this invention. It is a disassembled perspective view of the ice tray, heater, etc. which are used for the ice making apparatus based on this invention. It is a perspective view of the state which combined the ice tray, cover, etc. which are used for the ice making device based on this invention. It is a perspective view of the ice making tray used for the ice making apparatus based on this invention. It is a perspective view of the back surface of the ice tray used for the ice making apparatus based on this invention. It is a control block diagram of the refrigerator-freezer based on this invention. It is a bottom view of the ice tray used for the ice making apparatus in Embodiment 1 based on this invention. It is a perspective view of the state which has arranged the thermistor on the undersurface of the ice tray used for the ice making device in Embodiment 1 based on the present invention. It is a top view of the state which has arrange | positioned the thermistor in the lower surface of the ice tray used for the ice making apparatus in Embodiment 1 based on this invention. It is sectional drawing of the ice tray etc. which are used for the ice making apparatus in Embodiment 1 based on this invention. It is a side view of the thermistor used for the ice making apparatus in Embodiment 1 based on this invention. It is a fragmentary sectional view of the thermistor used for the ice making apparatus in Embodiment 1 based on this invention. It is sectional drawing, such as an ice making tray used for the ice making apparatus in Embodiment 2 based on this invention.

  An example of the refrigerator-freezer based on this invention is demonstrated. A refrigerator-freezer 1 shown in FIG. 1 includes a refrigerator compartment 2 having doors 3L and 3R with double doors at the top, an ice making chamber 4 with doors 5 and a freezer compartment 6 with doors 7 at the next stage, and the next. The stage is a drawer-type freezer compartment 8 and the bottom stage is a drawer-type vegetable compartment 9. A refrigeration cycle (not shown) including a compressor and a heat exchanger generates cold air, and the cold air is distributed to each room through a duct so that a refrigeration temperature or a freezing temperature required in each room is obtained. This mechanism is well known and will not be described in detail.

  An ice making device 10 is installed on the ceiling of the ice making chamber 4 as shown in FIGS. The ice making device 10 is an automatic ice making machine. An automatic ice maker generally means a device that can automatically perform a series of operations from collecting liquid water in an ice tray, freezing it, removing it from the ice tray, and obtaining a block of ice. . Although it is preferable that the step of supplying water to the ice tray can be performed automatically, the step of supplying water to the ice tray may be performed manually. It is preferable that the step of removing ice from the ice tray can be automatically performed, but this step may be performed manually.

  Hereinafter, the structure of the ice making device 10 will be described with reference to FIGS. 4 to 6 in addition to FIGS. 2 and 3.

  FIG. 2 is a cross-sectional view of the ice making device 10 as viewed from the left side of the refrigerator-freezer 1. A duct 11 for blowing cold air into the ice making chamber 4 is formed on the wall behind the ice making chamber 4. An ice tray casing 12 extends forward from the upper end of the duct 11. The ice tray casing 12 has an open bottom surface for dropping ice produced by the ice tray. A cold air discharge port 13 is formed in the duct 11 toward the inside of the ice tray casing 12.

  Inside the ice tray casing 12, an ice tray 20 is disposed at a position to receive the cold air blown from the cold air outlet 13. The ice tray 20 is formed of a synthetic resin that does not lose its elasticity even at low temperatures. Further, when bubbles in the supplied water adhere to the inner surface of the ice tray 20, it becomes difficult to obtain transparent ice. Therefore, it is desirable to take measures that make it difficult for bubbles to adhere, such as using polypropylene blended with silicone as a molding material or coating the molded ice tray 20 with a fluororesin.

  Fine particles attracted by static electricity generated on the surface of the ice tray 20 also hinder the generation of transparent ice. In order to avoid suction of such fine particles, the ice tray 20 is molded with a material that is less likely to generate static electricity, for example, a resin containing a silicone compound resin or an antistatic agent, or an antistatic agent is applied to the ice tray 20 after molding. It is desirable to take measures such as coating.

  FIGS. 7 and 8 show the ice tray 20 taken out alone. FIG. 7 is a view from an oblique upper side, and FIG. 8 is a view from an oblique lower side. The ice tray 20 includes a total of eight ice making cells 21 for producing ice having a trapezoidal cross section. The eight ice making cells 21 are arranged in two columns and four rows, and therefore the ice tray 20 has an elongated planar shape. Thus, the elongate ice tray 20 is arrange | positioned in the form which makes the longitudinal direction correspond to the depth direction of the refrigerator 1 as shown in FIG.

  As shown in FIG. 4, a support shaft 22 is provided at one end of the ice tray 20 in the longitudinal direction, and a socket portion 23 is provided at the other end. The support shaft 22 is rotatably supported by the ice tray casing 12. The socket portion 23 is coupled to a shaft of an ice removing device 24 (see FIG. 3) provided inside the ice tray casing 12 and is supported by the ice removing device 24. The support shaft 22 and the socket portion 23 are disposed on a common horizontal axis. The ice removing device 24 includes a motor and a speed reducer, and gives the ice tray 20 rotation within a certain angle range with the horizontal axis as the rotation axis.

  On the lower surface of the ice tray 20, a thermistor 25 is disposed in a space 219 between the ice making cells 21 arranged in two rows. The thermistor 25 measures the temperature inside the ice making cell 21 across the wall of the ice making cell 21.

  The thermistor 25 is fixed by a thermistor cover 26. Pins 27 protrude from the four corners of the thermistor cover 26 in a direction perpendicular to the longitudinal direction of the ice tray 20. A total of four legs 28 project from the lower surface of the ice tray 20 so as to surround the thermistor 25. A horizontal through hole 29 through which the pin 27 passes is formed at the tip of the leg portion 28. The thermistor 25 is fixed by overlapping the thermistor protection sealer 30 on the thermistor 25, overlapping the thermistor cover 26 thereon, and engaging the pins 27 with the horizontal through holes 29 of the legs 28.

  A heater 31 is disposed on the lower surface of the ice tray 20 as shown in FIG. The heater 31 is a heating wire covered with a silicone resin, and the entire heater 31 is flexibly finished so that it can follow the twisting of the ice tray 20. Parallel ribs 32 that receive the heaters 31 are formed at the apex portions of each ice making cell 21 in the upside down state.

  The parallel ribs 32 are two ribs arranged in parallel at a predetermined interval, and the interval between the ribs is set so that the heater 31 can be received in the form of a clearance fit. The interval between the ribs is set in this way so that the heater 31 can move freely to some extent when the ice tray 20 is twisted.

  The heater 31 is routed so as to draw a symmetrical shape to the left and right of the longitudinal center line of the ice tray 20. Here, the overall shape of the heater 31 is substantially U-shaped. A pair of feed lines 33 is connected to a location that is an open end of the U-shape.

  Since the heater 31 has a small design heat generation amount, the heater 31 has a structure in which an extremely thin heating wire is wound around the core of the glass fiber, and if the winding is twisted in a tightening direction, the heating wire is easily cut. Therefore, in addition to allowing the heater 31 to move freely to some extent as described above, the overall routing shape of the heater 31 is also set so that an excessive force is not applied to the heating wire as much as possible.

  The heater 31 is placed in the parallel ribs 32 and brought into close contact with the lower surface of the ice tray 20, and the lower surface of the ice tray 20 is covered with a cover 34. The cover 34 prevents cold air from entering the lower surface portion of the ice tray 20, uniformizes the temperature distribution between the ice making cells 21, and holds the heater 31 in the parallel ribs 32. .

  The cover 34 has a rectangular tray shape, and a ring 35 through which the support shaft 22 passes is formed at one end. The cover 34 is attached to the ice tray 20 with two screws 36 and one spring 37 after the ring 35 is fitted to the support shaft 22. The attachment of the cover 34 is not so hard as to restrain the movement of the ice tray 20 and is flexible so as not to disturb the twisting of the ice tray 20 at the time of deicing. As with the ice tray 20, the cover 34 itself is desirably molded from a synthetic resin that does not lose its elasticity even at low temperatures.

  Two through holes 38 are formed in the cover 34 near both ends of the longitudinal center line. Further, two through holes 39 are formed symmetrically with respect to the center line in the longitudinal direction at a position closer to the center of the cover than the through hole 38. The through hole 38 is circular and passes through a boss 40 having a circular cross section formed on the lower surface of the ice tray 20. The through hole 39 is rectangular, and allows the spring mounting rib 41 formed on the lower surface of the ice tray 20 to pass therethrough.

  When the screw 36 is screwed and fixed to the boss 40 exposed from the through hole 38, the cover 34 is held so as to be movable along the axis of the boss 40 in the form of using the screw 36 as a stopper for retaining. That is, the screw 36 prevents the cover 34 from being separated from the ice tray 20 without tightening the cover 34.

  When the cover 34 is secured with screws 36, the spring mounting rib 41 protrudes from the through hole 39 of the cover 34 as shown in FIG. The attachment hooks 43 at both ends of the spring 37 are engaged with the horizontal through hole 42 formed at the tip of the spring attachment rib 41. The spring 37 is formed by bending a spring steel wire into a shape in which there is a mounting hook 43 at the center in the longitudinal direction and hairpin portions 44 are present at both ends in the longitudinal direction.

  The hairpin portion 44 extends obliquely downward in FIG. 6, in other words, in the direction of the ice tray 20. For this reason, when the attachment hook 43 is engaged with the horizontal through hole 42 of the spring attachment rib 41, the hairpin portion 44 presses the cover 34. As shown in FIG. 3, the cover 34 is pressed against the heater 31 and holds the heater 31 with a constant load so as not to come out of the parallel rib 32. As a result, the heater 31 comes into close contact with the ice making cell 21 and heat can be efficiently transferred to the ice making cell 21.

  A windshield 45 extending downward is integrally formed at both longitudinal edges of the ice tray 20. The windshield plate 45 prevents cold air blown from above on the ice tray 20 from flowing downward. By providing the windshield plate 45, it is possible to prevent cold air from entering the lower surface of the ice tray 20 and impairing the heating effect of the heater 31, and the cold air is concentrated on the upper surface of the ice tray 20. .

  The windshield 45 is formed with a notch 46 that cuts in the vertical direction from the edge at a location that coincides with the boundary between the ice making cells 21. In the case of the embodiment, there are two notches 46 in one windshield 45. If the notch 46 is not provided, when the ice tray 20 is twisted, the stress of the windshield 45 is concentrated at one location, and the resin material at that location is whitened at an early stage and proceeds to the generation of cracks. . By forming the notches 46, the stress can be dispersed and the occurrence of whitening and cracks can be prevented.

  As shown in FIG. 3, a gap 47 is provided between the windshield plate 45 and the cover 34 so as not to cause mutual contact even when the ice tray 20 is twisted for ice removal.

  At the end of the ice tray 20 on the support shaft 22 side, a protrusion 48 is formed on one side surface. The protrusion 48 is for twisting the ice tray 20 when the ice is removed.

  The control unit 50 shown in FIG. 9 is responsible for overall control of the refrigerator-freezer 1 including operation control of the refrigeration cycle and energization control of the heater 31. The controller 50 includes a deicing device 24 and a heater 31, a compressor 51 that forms part of the refrigeration cycle, a blower 52 that sends cold air to each part in the refrigerator, a water supply device 53 that supplies water to the ice making device 10, a temperature sensor 54, Also, an ice amount sensor 55 and the like disposed in the ice making chamber 4 are connected. The temperature sensor 54 is a concept including a temperature measuring tool such as a thermistor disposed in each part. The thermistor 25 is also included in this concept.

  The controller 50 controls energization of the heater 31 in the following three stages. That is, “normal heating”, “preheating” with a smaller calorific value than “normal heating”, and “rapid heating” with a larger calorific value than “normal heating”. For example, the power consumption of “normal heating” can be set to 5 to 6 W, the power consumption of “preheating” can be set to 2 W, and the power consumption of “rapid heating” can be set to 7 to 8 W to make a difference in the amount of generated heat.

(Embodiment 1)
(Constitution)
With reference to FIG. 2, FIG. 3 and FIG. 10 to FIG.

  As shown in FIGS. 2 and 3, ice making device 10 in the present embodiment includes ice making tray 20. As shown in FIGS. 10 to 13, the ice tray 20 includes a first ice making cell 21 a and a second ice making cell 21 b arranged so as to be adjacent in the horizontal direction. FIG. 11 is an enlarged perspective view showing the vicinity of the thermistor 25 arranged at a position sandwiched between the first ice making cell 21a and the second ice making cell 21b. FIG. 12 is also a plan view. As shown in FIGS. 11 and 13, the first ice making cell 21 a and the second ice making cell 21 b each have a bottom 211, a cell upper end 212, and extend from the bottom 211 toward the cell upper end 212 to form a slope. And a plate-like side wall 213. In the first ice making cell 21 a shown in FIG. 13, the inclined surface extending obliquely upward from the left and right ends of the bottom portion 211 corresponds to the side wall 213. That is, the side wall 213 of the first ice making cell 21 a includes the portion 214. Also in the second ice making cell 21b, the side wall 213 includes slopes in either direction. Therefore, the side wall 213 of the second ice making cell 21 b includes the portion 215. Of the side wall 213 of the first ice making cell 21a, the portion 214 close to the second ice making cell 21b and the portion 215 of the side wall 213 of the second ice making cell 21b close to the first ice making cell 21a are reversed when viewed in cross-sectional shape. V-shaped. The ice tray 20 has a maximum water amount mode in which at least the first ice making cell 21a is filled with the maximum amount of water, and a minimum water amount mode in which at least the first ice making cell 21a is filled with a minimum amount of water that is ½ or less of the maximum amount of water. . In the maximum water amount mode, the water surface reaches the position 218, and in the minimum water amount mode, the water surface reaches the position 217. In the inverted V-shaped inner space 219, at least below the position 217 of the water surface in the minimum water amount mode, at least close to the portion 214 near the second ice making cell 21b of the side wall 213 of the first ice making cell 21a. Thus, the thermistor 25 as a temperature measuring tool is arrange | positioned.

  As shown in FIG. 13, the heater 31 may be disposed below the bottom portion 211. The heater 31 is for alleviating the decrease in water temperature. In order to make transparent ice, the heater 31 may be operated. If it is not necessary to make transparent ice, the heater 31 may not be provided.

  Here, the thermistor 25 is used as an example of the temperature measuring device, but the temperature measuring device may be other than the thermistor as long as it is a sensor that can detect the temperature in a narrow gap like the thermistor.

  In the ice making device in the present embodiment, the temperature measuring device is preferably a thermistor. This is because the thermistor is generally thin and can be arranged in a narrow gap. This is because the thermistor is easily available. The fact that the thermistor is preferable as the temperature measuring device also applies to the other embodiments.

  The place where the thermistor 25 is taken out alone is shown in FIG. The thermistor 25 includes a head 251, a lead wire 252, and a protective tube portion 253. A sectional view of the head 251 is shown in FIG. A thermistor element 254 is disposed inside the head 251. The thermistor element 254 is electrically connected to the lead wire 252. The head 251 includes a resin head cover 255, and the gap in the head cover 255 is filled with the sealing resin 256 in a state where the thermistor element 254 is inserted into the head cover 255.

  The reason why the side walls 213 of each ice making cell are not vertical walls but slopes is to allow ice to fall smoothly when the ice making tray 20 is tilted by the ice removing device 24.

(Action / Effect)
In the ice making device according to the present embodiment, the amount of water in the minimum water amount mode is ½ or less of the amount of water in the maximum water amount mode, so that the height of the water surface greatly fluctuates. Therefore, when the temperature measuring tool is placed at the innermost part of the gap between the ice making cells as in the past, the water surface is positioned below the temperature measuring tool in the minimum water volume mode, and the water temperature is measured appropriately. Can not do. However, in the present embodiment, the position of the temperature measuring device is below the position 217 of the water surface in the minimum water amount mode in the space 219 inside the inverted V shape, and at least the first ice making cell 21a. Since the temperature measuring tool is arranged so as to be close to the side wall 213, the temperature of the water in the first ice making cell 21a can be appropriately measured even at the minimum amount of water.

  Therefore, according to the present embodiment, it is possible to realize an ice making device capable of automatically making different sizes of transparent ice.

  In particular, when trying to make transparent ice, in this embodiment, the temperature information measured by the temperature measuring tool can be used to control the supply of cold air to the ice making chamber 4, so that the operation of slowly cooling is accurately performed. Can be done.

  In the present embodiment, the number of ice making cells included in ice making tray 20 is eight, but this number may be other numbers. In the present embodiment, as shown in FIG. 10, the two specific ice making cells included in the ice tray 20 are the first ice making cell 21a and the second ice making cell 21b. These two ice making cells are ice making. It may be in another position in the dish 20. The two ice making cells sandwiching the position where the thermistor 25 is arranged in the ice making cell 20 may be regarded as the first ice making cell 21a and the second ice making cell 21b each time. In particular, the ice making cell closest to the temperature measuring device may be regarded as the first ice making cell 21a.

  In the present embodiment, the temperature measuring tool is arranged so as to be sandwiched between two ice making cells, but the temperature measuring tool may be arranged so as to be surrounded by three or more, for example, four ice making cells. .

  Furthermore, as shown in the present embodiment, in the ice making device 10, it is preferable that the member that defines the position of the temperature measuring tool extends from the ice making tray 20. As shown in FIGS. 11 to 13, positioning ribs 261 as members for defining the position of the temperature measuring tool are provided so as to extend from the back side of the ice tray 20. The specific structure of the positioning rib 261 is not limited to the illustrated one. Since the temperature measuring tool is positioned by such a member, it is preferable because the temperature measuring tool can stably measure the temperature. In particular, when the ice making device 10 includes the ice removing device 24, the ice making tray 20 repeats torsional deformation. Therefore, if the temperature measuring tool is positioned by such a member, the temperature measuring tool is subjected to torsional deformation. This is preferable because it is difficult to shift.

(Embodiment 2)
(Constitution)
With reference to FIG. 16, the ice making device in Embodiment 2 based on this invention is demonstrated. A part of the ice making device in the present embodiment is shown in FIG. The basic configuration of this ice making device is the same as that described in the first embodiment. Therefore, the ice making device in the present embodiment includes the ice making tray 20. This ice making device can make transparent ice. In this ice making device, a heater 31 is disposed below the bottom 211 of the ice making cell. When the height from the bottom portion 211 to the position of the water surface in the minimum water amount mode is H, the thermistor 25 as a temperature measuring tool is arranged above the height of 1/4 of H with respect to the bottom portion 211. . That is, the height T of the thermistor 25 shown in FIG. 16 is larger than H / 4.

(Action / Effect)
In the ice making device in the present embodiment, by providing a heater on the lower side of the bottom so that water can be cooled slowly, heat from the heater is transmitted to the temperature measuring device, and the water temperature in the ice making cell is reduced. There is a concern that it will be impossible to measure accurately. In particular, when the height T of the temperature measuring device is H / 4 or less, the thermistor as the temperature measuring device is affected by the heat from the heater and cannot accurately detect the water temperature in the ice making cell. There is a fear.

  However, in the present embodiment, since the temperature measuring device is arranged at a position apart from the bottom by a height T greater than H / 4, the influence of heat from the heater can be avoided, and the temperature can be accurately measured. Can be measured.

(Embodiment 3)
(Constitution)
With reference to FIG. 1, the refrigerator-freezer in Embodiment 3 based on this invention is demonstrated. The refrigerator-freezer in the present embodiment includes the ice making device in each of the above embodiments. Thus, the overall structure is shown in FIG. However, what is shown in FIG. 1 is merely an example. The arrangement of the doors, the arrangement of the chambers, etc. are not necessarily as shown in FIG. Although the refrigerator-freezer shown in FIG. 1 is for home use, the refrigerator-freezer in this embodiment may be for business use.

(Action / Effect)
In this embodiment, since the ice making device as described in each of the above embodiments is provided, ices of different sizes can be automatically made by switching modes.

  In addition, the said embodiment disclosed this time is an illustration in all the points, Comprising: It is not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and includes all modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Freezer refrigerator, 2 refrigerator compartment, 3L, 3R door, 4 ice making room, 5 and 7 door, 6, 8 freezing room, 9 vegetable room, 10 ice making apparatus, 11 duct, 12 ice tray casing, 13 cold air discharge port, 20 Ice tray, 21 ice making cell, 21a first ice making cell, 21b second ice making cell, 22 support shaft, 23 socket part, 24 deicing device, 25 thermistor, 26 thermistor cover, 27 pins, 28 legs, 29 horizontal through hole , 30 Thermistor protection sealer, 31 Heater, 32 Parallel rib, 33 Feed line, 34 Cover, 35 Ring, 36 Screw, 37 Spring, 38, 39 Through hole, 40 Boss, 41 Spring mounting rib, 42 Horizontal through hole, 43 Mounting Hook, 44 Hairpin part, 45 Windshield, 46 Notch, 47 Clearance, 48 Projection, 50 Control part, 51 Compressor, 52 Blower 53, water supply device, 54 temperature sensor, 55 ice amount sensor, 211 bottom, 212 cell top, 213 side wall, 214 (close to the second ice making cell among the side walls of the first ice making cell), 215 (of the second ice making cell) The portion of the side wall that is near the first ice making cell, 217 (the surface of the water surface in the minimum water amount mode), 218 (the surface of the water surface in the maximum water amount mode), 219 (inside the inverted V shape), 251 head, 252 Lead wire, 253 protective tube portion, 254 thermistor element, 255 head cover, 256 sealing resin, 261 positioning rib.

Claims (4)

Equipped with an ice tray,
The ice tray includes a first ice making cell and a second ice making cell arranged to be adjacent in the horizontal direction,
The first ice making cell and the second ice making cell each have a bottom, a cell upper end, and a plate-like side wall extending from the bottom toward the cell upper end to form an inclined surface,
A portion of the side wall of the first ice making cell that is closer to the second ice making cell and a portion of the side wall of the second ice making cell that is closer to the first ice making cell are inverted V-shaped when viewed in cross-sectional shape. No shape,
The ice tray has at least a maximum water amount mode that satisfies the maximum water amount in the first ice making cell, and a minimum water amount mode that satisfies at least the minimum water amount that is ½ or less of the maximum water amount in the first ice making cell. And
Of the space inside the inverted V shape, below the position of the water surface in the minimum water volume mode, at least close to the portion of the side wall of the first ice making cell near the second ice making cell, A temperature measuring device is arranged ,
An ice making device , wherein a member that defines the position of the temperature measuring tool while in contact with the temperature measuring tool extends from the ice tray . A heater is disposed below the bottom, and when the height from the bottom to the position of the water surface in the minimum water volume mode is H, the temperature measurement tool is configured to adjust the temperature of the H with respect to the bottom. The ice making device according to claim 1, wherein the ice making device is disposed above a height of ¼. The ice making device according to claim 1 or 2 , wherein the temperature measuring tool is a thermistor. A refrigerator-freezer comprising the ice making device according to any one of claims 1 to 3 .

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