JP4431451B2 - Cell type ice machine - Google Patents

Description

  The present invention relates to a cell-type ice making machine that cools a peripheral wall of a cell that opens downward with a refrigerant and generates ice cubes while spraying and supplying ice-making water toward the cell.

  In this type of ice making machine, ice making water is ejected and supplied by a water supply unit disposed on the lower surface of the ice making case. The water supply unit is composed of a water supply tray, a water tank, a pump unit, and the like, and the whole can tilt up and down between an ice making posture and a deicing posture. This type of water supply structure is known, for example, in Patent Documents 1 and 2. There, a pump unit is arranged on the outer surface of the water tank, the suction port of the pump unit is connected to the water tank via a connection pipe, and the discharge port is connected to the pressure chamber of the water supply tray via an introduction pipe. . In any case, the introduction pipe and the pressure chamber are connected at the outer surface of the water tank.

Japanese Patent Laying-Open No. 2004-53075 (paragraph number 0012, FIG. 1) JP-A-4-283373 (paragraph number 0012, FIG. 1)

  In the water supply unit of Patent Document 1, the pump unit is arranged on one outer surface of the water tank, and the discharge port of the pump unit and the pressure chamber are communicated by a connecting pipe at one side corner of the water channel frame protruding from the water tank. . Therefore, it is inevitable that the space occupied by the water supply unit is increased by the amount that the water channel frame and the pump unit protrude from the water tank, and the ice storage space in the ice making chamber is reduced accordingly. Since the ice making water inlet is provided at one end of the pressure chamber, there is a problem that a difference in the amount of ejected water tends to occur between the nozzle hole near the inlet and the nozzle hole far from the inlet.

  In the water supply unit of Patent Document 2, since the pump unit is disposed in the recess formed in the lower corner of the tank, the occupied space can be reduced as compared with the water supply unit of Patent Document 1. Since an L-shaped main water supply channel is arranged at the center of the water supply tray and the nozzle holes are opened facing a group of branched water supply channels branched in parallel from the L-shaped main water supply channel, the nozzle hole is formed in comparison with the water supply unit of Patent Document 1. The variation in the amount of water ejected based on the difference in position can be reduced to a certain extent, but it is not sufficient.

  In this invention, a pump unit is arrange | positioned in the recessed part provided in the lower corner of the water tank, and the whole upper opening surface of a water tank is closed with a water supply tray. The water supply tray includes a tray main body and a water channel frame fixed to the inner surface of the upper wall. The water channel frame is formed by a pair of main water channel frames that are continuous in a U-shape and a group of branch water channel frames that are branched and arranged orthogonally from both main water channel frames. The discharge port of the pump unit communicates with the main water channel frame.

  By configuring the water supply unit as described above, the water supply unit can be made compact. In addition, by supplying ice making water to the water channel base, it is possible to further suppress variations in the amount of ejected water based on the difference in nozzle hole position. However, new problems have arisen. In order to connect the discharge port of the pump unit to the central portion of the water channel base, it is necessary to connect the discharge port of the pump unit and the water channel base in a state of passing through the inside of the water tank. That is, a passage opening for passing the discharge passage must be formed in the water tank.

  The problem is that part of the wash water flowing down from the return hole of the tray body during the deicing process leaks from the previous passage opening along the inner wall of the water tank, wets the entire surface of the pump unit including the motor, and short-circuits. There is a point to have fear. There is also a problem that the ice making water in the water tank gradually decreases. For example, it is not difficult to provide a dedicated waterproof device such as sealing between the passage opening and the discharge passage with rubber packing, or covering the outer surface of the pump unit with a waterproof cover, but the structure becomes complicated accordingly. , More assembly work.

  An object of the present invention is to reduce the cost of the water supply unit by reducing the cost of the water supply unit by reducing the size of the water supply unit, expanding the ice storage space in the ice making chamber, simplifying the seal structure of the passage opening opened to the water tank, The object is to provide a cell type ice making machine that can realize these simultaneously. An object of the present invention is to provide an ice making machine that can suppress variation in the amount of ejected water based on the difference in the position of nozzle holes by supplying ice making water from a central portion of a water channel frame.

  The ice making machine of the present invention includes an ice making case 10 provided with a group of cells 17 and a water supply unit for supplying ice making water to the ice making case 10 inside the ice making chamber 2. The water supply unit includes a water tank 14 that stores ice-making water, a water supply tray 13 that blows and supplies ice-making water toward each cell 17, and a pump unit 15 that pressurizes and supplies the ice-making water in the water tank 14 to the water supply tray 13. Including. The pump unit 15 is disposed in a recess 39 formed at the lower corner of the water tank 14, and the suction port 15 a of the pump unit 15 communicates with the deepest part of the water tank 14. The discharge port 15 b of the pump unit 15 and the water supply port 31 protruding from the lower surface of the water supply tray 13 are connected via a discharge pipe 52 that passes through a passage opening 51 that opens in the upper wall 39 b of the recess 39 of the water tank 14. A waterproof cap 32 that bulges upward and forms a water stop tube 56 on the upper edge side of the passage opening 51 and covers the peripheral surface and the upper surface of the water stop tube 56 and the passage opening 51 on the lower surface of the water supply tray 13 facing the water stop tube 56. Is formed.

  The water supply tray 13 is formed by a tray main body 20 that closes the upper surface opening of the water tank 14, and a water channel frame 21 that is fixed to the inner surface of the tray main body 20 and forms the water flow path R in cooperation with the tray main body 20. The water channel frame 21 connects a pair of main water channel frames 28 and one ends of both main water channel frames 28, a water channel base 29 that makes both main water channel frames 28 continuous in a U-shape, and an orthogonal shape from both main water channel frames 28. A water supply port 31 and a waterproof cap 32 project downward from the center lower surface of the water channel base 29.

  The peripheral surface of the discharge pipe 52 that passes through the passage opening 51 can be held in close contact with the water stop tube 56.

  One end of a swing arm 42 fixed to one side of the water supply tray 13 is pivotally supported by the unit base 9 so that the entire water supply unit can be tilted up and down between the ice making posture and the ice removing posture, and the pump unit 15 is attached and fixed to a bracket 40 fixed to the swing arm 42 so that the entire upper surface of the pump unit 15 is covered with a fastening wall 41 of the bracket 40.

  In the present invention, the water supply unit is made compact by arranging the pump unit 15 in the recess 39 formed in the lower corner of the water tank 14. The discharge port 15 b of the pump unit 15 and the water supply port 31 protruding from the lower surface of the water supply tray 13 were connected in the water tank 14. Specifically, by opening the passage opening 51 in the upper wall 39b of the recess 39 and connecting the discharge port 15b and the water supply port 31 via the discharge pipe 52, the ejection based on the position difference of the nozzle hole 22 The variation in water volume can be suppressed.

  In addition, a water stop tube 56 is formed to bulge on the upper edge side of the passage opening 51, and the water stop tube 56 prevents the ice making water flowing along the upper wall 39 b of the recess 39 from falling from the passage opening 51 during the deicing process. Further, the upper surface of the water stop tube 56 and the passage opening 51 is covered with a waterproof cap 32 provided on the lower surface of the water supply tray 13 facing the water stop tube 56, so that a space between the upper wall 39 b of the recess 39 and the passage opening 51 is provided. A maze is formed so that water can be more reliably prevented from entering the waterstop 56 and the passage opening 51.

  According to the ice making machine of the present invention having the above-described configuration, the water supply unit can be made compact to expand the ice storage space in the ice making chamber 2, and the ice making water flowing back into the tank has a passage opening 51 that opens to the water tank 14. It is possible to reliably prevent leakage from the water and prevent the entire surface of the pump unit 15 from being immersed in water. There is also an advantage that it is possible to eliminate the gradual decrease in ice making water in the water tank 14. Since the waterstop 56 and the waterproof cap 32 are provided in the water tank 14 and the water supply tray 13 to prevent the ice making water from leaking out from the passage opening 51, for example, a dedicated rubber packing is provided between the passage opening 51 and the discharge pipe 52. Compared to the case of sealing with a seal, the sealing structure is simplified and the cost required for manufacturing the water supply unit can be reduced.

  The water channel frame 21 is composed of a pair of main water channel frames 28, a water channel base 29 that connects both main water channel frames 28 in a U-shape, and a group of branch water channel frames 30 that are branched from both the main water channel frames 28. According to the water supply tray 13 configured and provided with a water supply port 31 and a waterproof cap 32 projecting downward on the center lower surface of the water channel base 29, the ice-making water supplied to the water supply port 31 has a pair of main water channel frames 28. It can be evenly fed to each branch waterway frame 30 through. Therefore, the variation in the amount of water ejected based on the difference in the position of the nozzle hole 22 as compared with the conventional water supply structure can be eliminated, thereby generating uniform ice cubes with no variations in the appearance shape and generation speed of ice cubes. The entire structure of the water supply tray 13 is simplified by the amount that the water supply port 31 and the waterproof cap 32 project concentrically on the lower surface of the center of the water channel base 29, and can be manufactured at low cost.

  If the peripheral surface of the discharge pipe 52 passing through the passage opening 51 is tightly held by the water stop cylinder 56, the gap between the discharge pipe 52 and the water stop cylinder 56 can be sealed by the discharge pipe 52, so that the ice-making water can pass through the passage opening 51. It is possible to prevent leakage from the air more reliably. In this case, the discharge pipe 52 can be formed of a rubber or plastic hose having elasticity.

  According to the water supply unit in which the bracket 40 is fixed to the swing arm 42 integrated with the water supply tray 13 and the pump unit 15 is mounted on the lower surface side of the fastening wall 41, the entire upper surface of the pump unit 15 is covered with the fastening wall 41. Since the water can be covered, for example, even when ice-making water flows down from the passage opening 51 due to deterioration of the discharge pipe 52 or the like, it is possible to prevent the pump unit 15 from being submerged by receiving water leakage at the fastening wall 41 and to prevent water failure. Unit is obtained.

(Embodiment) FIGS. 1 to 9 show an embodiment of a cell type ice making machine according to the present invention. In FIG. 2, the ice making machine has a vertically long box-shaped main body case 1, and the inside of the main body case 1 surrounded by a heat insulating wall is divided into an upper ice making chamber 2 occupying most of the main body case 1 and a machine room 3 below the case. It is divided and the front opening of the ice making chamber 2 is opened and closed by an upper opening type door (not shown). The machine room 3 contains refrigeration equipment such as a compressor 5 and a condenser 6. An ice making mechanism and a drain pan 7 that receives excess ice making water discharged from a water supply unit, which will be described later, washing water at the time of deicing, and the like and guides it down to the outside of the machine are provided in the majority of the ice making chamber 2.

  3 and 4, the ice making mechanism includes a unit base 9 fixed near the upper end of the ice making chamber 2 as a basic structure, an ice making case 10 fixed to the lower surface thereof, and a water supply unit for supplying ice making water to the ice making case 10. And a posture switching mechanism that tilts the water supply unit up and down, and a water supply pipe 11 that supplies ice-making water to the water supply unit or supplies cleaning water for deicing.

  In FIG. 4, the ice making case 10 is formed of a square dish-like container that opens downward, and a group of cells 17 that open downward are defined in the container. Each cell 17 is formed in a square box shape by assembling metal plate materials in a lattice shape. A refrigerant pipe 18 for cooling the ice making case 10 to below the freezing point is disposed on the upper surface of the ice making case 10 in close contact. In the deicing process, hot gas is supplied to the refrigerant pipe 17 to heat the ice making case 10 and promote separation of the cell 17 and the ice cube.

  The water supply unit is disposed opposite to the lower surface side of the ice making case 10, a water supply tray 13 for supplying ice making water to each cell 17 of the ice making case 10, a water tank 14 for storing ice making water, and a water tank 14. And a pump unit 15 that pressurizes and feeds the ice making water to the water supply tray 13.

  The water supply tray 13 includes a tray main body 20 that opens downward, and a water channel frame 21 that is bonded and fixed to the inner surface of the upper wall of the tray main body 20 and forms a water flow path R in cooperation with the tray main body 20. In FIG. 5, on the upper wall of the tray body 20, a nozzle hole 22 that supplies ice-making water into the cell 17, a pair of return holes 23 that are opposed to each other with the nozzle hole 22 interposed therebetween, and an opening periphery of the nozzle hole 22 A drainage recess 24 that connects the lower end of the return hole 23 and the lower end of the return hole 23 in an inclined manner and a second return hole 25 formed along the periphery of the tray body 20 are formed (see FIG. 7).

  The drainage recess 24 is provided to prevent ice cubes from becoming clouded by reliably flowing ice-making water that has collided with ice blocks and did not freeze until the ice-making process is completed into the return hole 23. The water tank 14 is integrally fastened and fixed to the lower surface of the tray main body 20. In the state where both are integrated, the washing water is supplied between the peripheral wall on the tilting tip side of the water tank 14 and the tray main body 20. A gap E for dropping into 14 is secured (see FIGS. 4 and 5).

  As shown in FIG. 6, the water channel frame 21 connects a pair of main water channel frames 28, 28 extending in parallel from the tilt base end side of the tray body 20 toward the tilt front end side, and one ends of both main water channel frames 28. Thus, it is made of a plastic molded product integrally provided with a water channel base 29 for continuing both main water channel frames 28 in a U-shape, and a group of branch water channel frames 30 branched and arranged orthogonally from both main water channel frames 28, A water supply port 31 and a waterproof cap 32 project downward from the center lower surface of the water channel base 29. Each branched water channel frame 30 protrudes to a length corresponding to one cell on the opposite side surface of both main water channel frames 28, and protrudes to a length corresponding to two cells on the other side surface side. . The water supply port 31 and the waterproof cap 32 are formed in a concentric cylinder shape, and the upper surface of the waterproof cap 32 is closed by the bottom wall and the bottom wall of the water channel base 29 and a protruding wall that is flush with the bottom wall.

  As shown in FIG. 5, the nozzle hole 22 described above communicates with the water channel R defined by each branch water channel frame 30, and the return hole 23 is disposed in an outside frame portion of the branch water channel frame 30. . In this way, ice making water is supplied from the water supply port 31 provided on the central lower surface of the water channel base 29 to the main water channel frame 28 that is continuous in a U-shape, and ice making is performed to the branch water channel frame 30 branched from each main water channel frame 28. If the water is diverted and ejected from each nozzle hole 22, the ice-making water can be ejected and supplied evenly even though the distance between the water supply port 31 and each nozzle hole 22 is different.

  A confirmation test was conducted to confirm that the ice making water was ejected evenly. Ice making water having the same pressure and the same amount of water as ice making was fed from the water supply port 31 into the water passage R, and the heights of the jets ejected upward from the nozzle holes 22 were compared. As a result, a slight variation was observed depending on the difference in the distance between the water supply port 31 and each nozzle hole 22, but it was confirmed that the height of the jets ejected from all the nozzle holes 22 had no practical problem.

  In FIG. 4, the water tank 14 is formed of a square dish-like plastic molded product that is open upward and integrally includes a bottom wall 34 that is bent in a V shape and a peripheral wall that is erected on the four peripheral edges of the bottom wall 34. A drainage port 35 is opened near the tilting tip of the peripheral wall facing the inside of the ice making chamber 2, and a drainage basin 36 is formed on the outer surface of the drainage port 35. A water guide wall 37 is formed on the inner surface of the tank to forcibly guide the remaining water in the tank to the drain port 35. The water guide wall 37 is formed in a conical shape from the peripheral side wall facing the drain port 35 toward the drain port 35, and the shape in plan view is a right triangle. When the water tank 14 is in the ice-removal posture, the water guide wall 37 is inclined downward toward the drain port 35.

  In order to make the water supply unit compact, a recess 39 is formed in the lower corner of the tilting base end side of the water tank 14, and the pump unit 15 is disposed in the recess 39. As shown in FIG. 3, the pump unit 15 is mounted on a bracket 40 fixed to the lower surface of the swing arm 42, its suction port 15a communicates with the deepest part of the water tank 14, and the discharge port 15b is a water channel frame. It communicates with 21 water supply ports 31. Details thereof will be described later. In FIG. 8, the pump unit 15 is configured by integrating a motor unit 58 and a pump unit 59 including a centrifugal pump.

  The bracket 40 is formed of a press fitting that is bent into a bowl shape (see FIG. 4), and the pump unit 15 is fixed to the lower surface of a horizontal fastening wall 41 that enters the recess 39. The fastening wall 41 covers the entire top surface of the pump unit 15. The volume of the water tank 14 is reduced by the amount of the concave portion 39 provided, but in order to compensate for this volume reduction, an expansion tank portion 38 communicating with the inside of the tank is bulged and formed on the outer surface of the inner and outer peripheral walls (see FIG. 8). ).

  3 and 4, a swing arm 42 made of a press fitting is fixed to the side end of the tray body 20, and the upper end of the swing arm 42 is pivotally supported by the unit base 9 via a pair of pins 43. By doing so, the water supply unit can swing and displace between the ice making posture and the ice removing posture.

  A posture switching mechanism for switching the water supply unit between an ice making posture and an ice removing posture is provided. 3 and 9, the posture switching mechanism includes a motor 45 with a speed reducer fixed to the unit base 9 in a state of facing the swinging tip of the water supply tray 13, and a pair of drive arms fixed to the output shaft of the speed reducer. 46 and a pair of spring receiving pins fixed to the water supply tray 13 and a pair of tension coil-shaped springs 47 mounted between the drive arms 46.

  When the tip of the drive arm 46 is at the 12 o'clock position as shown in FIG. 3 with respect to the timepiece dial, the water supply tray 13 and the water tank 14 are maintained in the ice making posture. When the drive arm 46 rotates counterclockwise from the ice making posture and the tip of the drive arm 46 reaches the position of approximately 7 o'clock as shown by the imaginary line in FIG. It swings downward by its own weight and switches to the deicing posture. When the drive arm 46 is rotated from this state to the 12 o'clock position, the water supply tray 13 and the water tank 14 are raised and swung around the pin 43 to return to the ice making posture.

  The water supply pipe 11 is disposed above the water supply tray 13 in a space between the ice making case 10 and the swing arm 42, and water supply ports are opened at regular intervals on the pipe wall. The water supply pipe 11 is connected to the water supply via an electromagnetic valve 48 (see FIG. 4) and a water pipe. By opening and closing the electromagnetic valve 48, ice making water is supplied toward the upper wall of the tray body 20, or cleaning water for deicing is supplied.

  As shown in FIG. 8, in a state where the water supply tray 13 and the water tank 14 are fastened, the tubular water supply port 31 provided in the water channel frame 21 protrudes downward from the passage opening 51 opened in the upper wall 39 b of the recess 39. Yes. The water supply port 31 and the discharge port 15b of the pump unit 15 face each other vertically with a slight gap, and communicate with each other through a discharge hose (discharge tube) 52 that is externally fitted to both. Similarly, the tubular joint 54 projecting laterally from the lateral wall 39a of the recess 39 and the suction port 15a of the pump unit 15 are communicated with each other by a suction hose (suction pipe) 53 that is externally fitted to both. .

  At the time of deicing, ice making water that has not been frozen flows down into the water tank 14 from the return hole 23 or the second return hole 25. A part of the recess 39 is received by the upper wall 39 a of the recess 39, and thus may drop from the passage opening 51. In order to prevent such water leakage, as shown in FIGS. 1 and 8, a water stop tube 56 is formed to bulge upward toward the water supply port 31 on the upper edge side of the passage opening 51, and returns along the upper wall 39a. Water is prevented from falling into the passage opening 51. Further, a waterproof cap 32 is formed on the lower surface of the water channel base 29 facing the water stop tube 56 so as to protrude downward so as to cover the peripheral surface and the upper surface of the water stop tube 56 and the passage opening 51. The peripheral surface of the discharge hose 52 passing through the passage opening 51 is held in close contact with a water stop cylinder 56, which also helps prevent water leakage from the passage opening 51.

  In the ice making process, new ice making water is supplied from the water supply pipe 11 to the upper surface of the water supply tray 13. The ice making water flows down to the water tank 14 through the return hole 23, and a necessary amount is stored in the tank. While cooling the ice making case 10 by circulating and supplying the refrigerant to the refrigerant pipe 18, the pump unit 15 is activated and the ice making water in the water tank 14 is pressurized and supplied to the water channel R, and the inside of the cell 17 is supplied from the nozzle hole 22. Ice cubes are generated When the ice making is completed, the refrigerant supply to the refrigerant pipe 18 and the water supply by the pump unit 15 are stopped, and the process proceeds to the ice removal process. At this time, ice-making water containing impurities such as chlorine remains in the water tank 14.

  In the deicing process, hot gas is supplied to the refrigerant pipe 18 to heat the ice making case 10 and melt the interface between the peripheral wall of the cell 17 and the ice cube, thereby promoting the ice cube separation. After the ice making case 10 has been heated and the predetermined time has elapsed, the motor 45 of the attitude switching mechanism is operated, the drive arm 46 is rotated and displaced in the counterclockwise direction, and the water supply tray 13 and the water tank 14 are lowered. Switch to a tilted deicing position. At the same time, the electromagnetic valve 48 is switched to supply deicing water from the water supply pipe 11 to the upper surface of the water supply tray 13.

  As a result, the ice cubes escape from each cell 17, are guided by the upper wall of the water supply tray 13, slide down, and are stored in the ice making chamber 2. The ice chips adhering to the upper wall of the water supply tray 13 are washed away with the washing water supplied from the water supply pipe 11 and flow down into the water tank 14 through the gap E together with the washing water. A part of the washing water falls from the return hole 23 to the water tank 14.

  The water supply tray 13 and the water tank 14 slowly descend and tilt and eventually switch to the deicing posture. When the water level in the tank reaches the drain port 35 due to the tilting of the water tank 14, a part of the drainage is received by the water guide wall 37 and the water level in the tank rises by the amount pushed away by the water guide wall 37. Get faster. Therefore, drainage of residual water in the tank is started in a state where the tilt angle of the water tank 14 is small. The amount of drainage flowing into the drainage port 44 when the water tank 14 is further tilted and the rate of increase in drainage accompanying the tilting of the tank can be reduced. As a result, ice making water and washing water remaining in the tank are gently discharged. As described above, it is possible to prevent the ice making water flowing down the upper wall 39b of the concave portion 39 from flowing down from the passage opening 51 by the water stop tube 56 and the waterproof cap 32 in the ice removing process.

  When a series of ice removing operations are completed, the water supply tray 13 and the water tank 14 are returned to the ice making posture, and the upper wall of the tray body 20 is made to face the lower surface of the ice making case 10. Thereafter, ice cubes are continuously generated by alternately performing an ice making process and an ice removing process.

  In the above embodiment, the water supply tray 13 has a two-piece structure, but may have a three-piece structure. The water flow path R can be made into arrangement patterns other than an Example. The water supply port 31 is preferably provided at the central portion of the water channel base 29, but may be provided at an offset position on one side of the water channel base 29. The discharge pipe 52 can be formed of a plastic pipe or a metal pipe. The additional tank portion 47 may be omitted. The planar shape of the water tank need not be square.

It is sectional drawing which shows the connection structure of a pump unit and a water supply tray. It is a vertical front view of an ice making machine. It is a front view of an ice making unit. It is a longitudinal front view of an ice making unit It is a vertical front view which shows a nozzle hole and a return hole structure. It is a top view of a water channel frame. It is a partially broken top view of a water supply tray. It is the sectional view on the AA line in FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3.

Explanation of symbols

2 Ice making chamber 9 Unit base 10 Ice making case 13 Water supply tray 14 Water tank 15 Pump unit 15a Pump unit suction port 15b Pump unit discharge port 17 Cell 20 Tray body 21 Water channel frame 28 Main water channel frame 29 Water channel base 30 Branch water channel frame 31 Water supply port 32 Waterproof cap 39 Recess 39b Recess upper wall 40 Bracket 41 Fastening wall 42 Swing arm 51 Passage opening 52 Discharge pipe 56 Water stop tube R Water passage

Claims (4)

The ice making chamber 2 includes an ice making case 10 having a group of cells 17 and a water supply unit for supplying ice making water to the ice making case 10.
The water supply unit includes a water tank 14 for storing ice making water, a water supply tray 13 for supplying ice making water to each cell 17, and a pump unit 15 for supplying ice making water in the water tank 14 to the water supply tray 13 under pressure. Including
The pump unit 15 is disposed in a recess 39 formed in the lower corner of the water tank 14, and the suction port 15 a of the pump unit 15 communicates with the deepest part of the water tank 14.
The discharge port 15 b of the pump unit 15 and the water supply port 31 protruding from the lower surface of the water supply tray 13 are connected via a discharge pipe 52 that passes through a passage opening 51 that opens in the upper wall 39 b of the recess 39 of the water tank 14. And
On the upper edge side of the passage opening 51, a water stop tube 56 is formed to bulge upward,
A cell type ice making machine characterized in that a waterproof cap 32 is formed on the lower surface of the water supply tray 13 facing the water stop tube 56 so as to cover the peripheral surface and the upper surface of the water stop tube 56 and the passage opening 51. The water supply tray 13 is formed of a tray main body 20 that closes the upper surface opening of the water tank 14, and a water channel frame 21 that is fixed to the inner surface of the tray main body 20 and forms the water flow path R in cooperation with the tray main body 20. ,
A water channel frame 21 connects a pair of main water channel frames 28 and one ends of both main water channel frames 28, a water channel base 29 that makes both main water channel frames 28 continuous in a U shape, and an orthogonal shape from both main water channel frames 28. A group of branch waterway frames 30 that are arranged and branch off,
The cell-type ice making machine according to claim 1, wherein a water supply port (31) and a waterproof cap (32) project downward from a central lower surface of the water channel base (29).   The cell type ice making machine according to claim 1 or 2, wherein a peripheral surface of the discharge pipe (52) passing through the passage opening (51) is held in close contact with a water stop cylinder (56). One end of a swing arm 42 fixed to one side of the water supply tray 13 is pivotally supported by the unit base 9, and the whole water supply unit is supported so as to be able to tilt up and down between the ice making posture and the ice removing posture.
The pump unit 15 is mounted and fixed to a bracket 40 fixed to the swing arm 42.
The cell type ice making machine according to claim 1, wherein the entire upper surface of the pump unit is covered with a fastening wall of the bracket.

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