JP2010025496A - Downward flow type ice making machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a downward flow type ice making machine for reducing water droplets in a cube guide. <P>SOLUTION: The downward flow type ice making machine 101 includes ice-making plates 1a, 1b, an ice-making water tank 2, the cube guide 3 arranged between the ice-making plates 1a, 1b and the ice-making water tank 2, allowing passage of water, and not allowing passage of ice produced by the ice-making plates 1a, 1b and having a predetermined size, and a plate-like deflector 10 arranged between the cube guide 3 and the ice-making plates 1a, 1b for guiding water which has flowed downward on the ice-making plates 1a, 1b to the cube guide 3. The deflector 10 is inclined to the cube guide 3 so as to flow the water which has flowed downward on the ice-making plates 1a, 1b to the cube guide 3, and includes a distributing part 13 composed of a plurality of flow passages 13a provided along the inclining direction of the deflector 10 and a joining part 14 positioned at the downstream of the distributing part 13 for joining a plurality of the flow passages 13a on a surface of the deflector 10 on the side of ice-making plates 1a, 1b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a flow-down type ice making machine, and more particularly to a deflector structure that changes the flow of water circulating through the ice making plate and guides it to a water tank.

Ice making water is sprinkled on an ice making plate provided in the vicinity of the evaporator, and heat is absorbed from the ice making water flowing down the surface of the ice making plate by the endothermic action when the refrigerant passing through the evaporator evaporates to cool the ice making water. There is a flow-down ice maker that makes ice. In this flow-down type ice making machine, a part of the ice making water sprinkled on the ice making plate is made, but the other ice making water falls below the ice making plate without reaching the ice making. The fallen water is collected in an ice making water tank, and then circulated in the ice making machine by a pump and sprayed again on the ice making plate. In this way, the ice making water circulates in the ice making machine by the pump and is repeatedly sprinkled on the ice making plate, so that the generated ice grows and has a predetermined size.
For example, in the flow-down type ice maker of Patent Document 1, an ice making water tank is disposed below the ice making plate, and ice generated by the ice making plate is placed in an upper opening of the ice making water tank below the ice making plate. An inclined plate-shaped cube guide is provided for guiding. Further, the cube guide is formed with a long hole extending in the inclined direction. As a result, the ice making water that has flowed down the ice making plate and has not reached ice making falls through these long holes into the ice making water tank. On the other hand, the ice generated by the ice making plate is guided to the ice storage chamber by a cube guide. And the ice making water which fell to the ice making water tank is recirculated by the pump provided in the ice making water tank, and is sprinkled on the ice making plate.

International Publication Number WO00 / 70278

  However, in the flow-down type ice making machine of Patent Document 1, since the ice making water that has dropped through the ice making plate directly hits the cube guide, the hit ice making water jumps and splashes into the ice storage chamber. For this reason, there is a problem that the ice inside the ice storage chamber is melted or solidified due to the melting of the ice, and the quality of the generated ice is lowered.

  This invention was made in order to solve such a problem, and it aims at providing the flow-down type ice making machine which can reduce the splash of the ice making water in a cube guide.

  An ice discharge path structure according to the present invention is provided between an ice making plate that generates ice from flowing water, a water tank that stores water flowing down the ice making plate, and between the ice making plate and the water tank, Is provided between the cube guide and the ice making plate and guides the water flowing down the ice making plate to the cube guide. The deflector is inclined toward the cube guide so that the water flowing down the ice making plate flows into the cube guide, and the deflector is provided on the surface of the deflector on the ice making plate side along the direction in which the deflector is inclined. In addition, the present invention is characterized by having a flow dividing section composed of a plurality of flow paths and a merge section located downstream of the flow dividing sections and where the flow paths merge.

  For this reason, the water that has flowed down the ice-making plate and dropped on the deflector is distributed to a plurality of flow paths that form a diverting portion of the deflector, and flows down through the plurality of flow paths. Therefore, the flow of water falling on the deflector is dispersed without being concentrated in one place. The plurality of flow paths merge on the deflector at the downstream junction, but the water flowing down each of the plurality of flow paths diffuses after flowing out from the flow path to the merge section, and is similarly diffused adjacent to each other. The water merges with the water in the flow path and falls from the tip of the deflector. At this time, the merged water forms a planar flow that continuously spreads over the entire width of the plurality of flow paths in which the water has flowed down at the merge portion, and a water film that extends downward in an arc from the tip of the deflector Falls into the cube guide while forming. For this reason, since the impact of the water which fell the deflector is reduced compared with the case where a flow path is not formed in a deflector, the splash of the water in a cube guide is reduced. In addition, the water that has flowed down the ice plate and dropped directly onto the cube guide splashes at the cube guide, but the splashed water is absorbed by the water film formed at the tip of the deflector and jumps outside the cube guide. Disappear. For this reason, this flow-down type ice making machine enables efficient ice making.

  The deflector has a recess at the junction, and a hole that communicates with the recess downstream of the recess and penetrates the deflector, and water that has passed through the hole may fall into the cube guide. Therefore, water is sprayed on the ice making plate not only during ice making but also during deicing. In particular, since the amount of water sprayed at the time of deicing is less than that at the time of ice making and there is no water flow, the sprayed water usually flows from the tip of the deflector to the back surface due to the surface tension of the water at the tip of the deflector. Try to wrap around. Further, the water that has flowed down falls to a position off the cube guide and flows into, for example, an ice storage chamber. Therefore, at the time of deicing, the concave portion provided in the confluence portion downstream of the plurality of flow paths captures the water flowing down the flow path, and further, the hole provided downstream of the concave portions is captured in the concave portion. Drop water onto the lower cube guide. Therefore, even when the inclination angle of the deflector is loose, it is possible to prevent water from flowing around at the tip of the deflector. Thereby, the dimension which occupies the up-down direction of a deflector is reduced, and size reduction of a flow-down type ice maker can be achieved. Further, since the amount of water passing through the hole increases when the size of the hole is increased, a large amount of water falls from the hole during ice making, and water splashes are generated in the cube guide. However, by providing the recess and the hole, the area for capturing water can be increased without increasing the size of the hole. This makes it possible to effectively capture water during deicing without increasing the amount of water flowing down from the hole during ice making.

The recess and the hole in the deflector may be provided at a position between each of the plurality of flow paths. By shifting the recess and the hole with respect to the extending direction of the flow path, the water with the water flowing through the flow path of the deflector is not obstructed by the flow during ice making, and does not flow a lot from the hole. It falls from the tip of the deflector via the junction and effectively forms a water film.
The plurality of flow paths in the deflector may be partitioned by a plurality of strip-shaped wall portions, and each of the plurality of wall portions may be adjacent to the recess. At the time of deicing, water without water flowing through the flow path of the deflector flows along the wall portion in the flow path, so that it is effectively captured in the concave portion and falls to the cube guide below the hole.

  According to this invention, the flow-down type ice making machine can reduce the splash of water in the cube guide.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment First, the configuration of a flow-down type ice making machine 101 according to an embodiment of the present invention will be described with reference to FIGS.
Referring to FIG. 1, a flow down type ice making machine 101 includes three ice making units 1 therein. The three ice making units 1 constitute a part of the outer shell of the flow down type ice making machine 101. The left side wall 101a, the side wall 101b in the depth direction of the paper, the side wall 101b (not shown) facing the side wall 101b, and the side wall 101a. It is arrange | positioned in the space enclosed by the partition 101c to perform.

  Each ice making unit 1 has a pair of ice making plates 1a and 1b facing each other, and a cooling tube 1c between the ice making plates 1a and 1b. Each of the ice making plates 1a and 1b is formed with a plurality of mountain-shaped partition walls 1aa and 1ba for partitioning ice on the surface opposite to the surface facing each other, and the partition walls 1aa and 1ba are constant in the depth direction of the page. Are arranged at intervals. The cooling tube 1c is an evaporator and is arranged so as to meander between the ice making plates 1a and 1b. As a result, the cooling tube 1c cools the adjacent ice making plates 1a and 1b by the endothermic action when the refrigerant flowing through the cooling tube evaporates.

  Each ice making unit 1 has a sprinkler 1d having a rectangular cross-section, provided above the ice making plates 1a and 1b so as to straddle the ice making plates 1a and 1b. The water sprinkler 1d extends in the depth direction of the drawing along the ice making plates 1a and 1b. Furthermore, the inside of the water sprinkler 1d is hollow, and the hollow interior is divided into two by an ice making water flow path 1da and a deicing water flow path 1db extending in the depth direction of the drawing. The deicing water channel 1db is arranged at the center of the bottom inside the sprinkler 1d, and the ice making water channel 1da is arranged so as to surround the deicing water channel 1db from the upper outer side. In addition, ice making water flows through the ice making water flow channel 1da, and tap water for deicing flows through the deicing water flow channel 1db. Furthermore, a plurality of holes (not shown) are provided at the bottom of the water sprinkler 1d. From these holes, the ice making water in the ice making water flow path 1da is sprinkled in each space partitioned by the partition walls 1aa and 1ba in the ice making plates 1a and 1b, and the tap water in the deicing water flow path 1db Is sprayed between the ice making plates 1a and 1b.

  In addition, an ice making water tank 2, which is a water tank for storing and storing water flowing down from the ice making plates 1 a and 1 b, is provided below the ice making unit 1 inside the flow down type ice making machine 101. The ice making water tank 2 is disposed adjacent to the side walls 101 a and 101 b of the flow down type ice making machine 101. In addition, a pump (not shown) is connected to the ice making water tank 2, and the water stored in the ice making water tank 2 by this pump is sent to the sprinkler 1 d of the ice making unit 1 as ice making water. Further, the ice making water tank 2 has an opening 2a in the upper part for receiving water flowing down from the ice making plates 1a and 1b. (See Figure 2)

  Further, a plate-shaped cube guide 3 that covers the entire opening 2 a is provided in the opening 2 a at the top of the ice making water tank 2. The cube guide 3 extends from the side wall 101a of the flow down type ice making machine 101 so as to incline downward toward the end 3c on the opposite side of the side wall 101a. The cube guide 3 has a guide surface 3a formed on the upper surface thereof, and has a plurality of long holes 3b on the guide surface 3a. The plurality of long holes 3 b have a shape in which the longitudinal direction is along the inclination direction of the cube guide 3 and penetrates the cube guide 3. (See Figure 2)

Therefore, the ice generated to a predetermined size in the ice making unit 1 falls on the cube guide 3, but does not pass through the long hole 3b of the cube guide 3, and on the guide surface 3a, the ice of the cube guide 3 is formed by the long hole 3b. Guided along the tilt direction and guided outside the ice making water tank 2. On the other hand, ice making water that has fallen through the ice making plates 1a and 1b without reaching ice making in the ice making unit 1 or small ice pieces that have fallen from the ice making plates 1a and 1b without reaching a predetermined size are not allowed to pass through the long holes 3b. It can pass and flow into the ice making water tank 2. (See Figure 2)
Accordingly, the cube guide 3 is provided between the ice making unit 1 and the ice making water tank 2 and has a structure that allows passage of water but does not allow passage of ice of a predetermined size generated by the ice making unit 1. is doing.

In addition, an ice storage tank 4 for storing generated ice is provided below the ice making water tank 2 inside the flow down type ice making machine 101. For this reason, the ice generated in the ice making unit 1 to a predetermined size and dropped onto the cube guide 3 is guided on the guide surface 3 a of the cube guide 3 and falls onto the ice storage tank 4.
Further, between the ice making unit 1 and the cube guide 3, a plate-like deflector 10 that is attached to the partition wall 101 c of the flow-down ice making machine 101 and extends in the horizontal direction is provided. The deflector 10 has a tip portion 10 c inclined downward toward the ice making water tank 2, that is, toward the cube guide 3, and the tip portion 10 c inclined downward is a part above the cube guide 3. It extends so as to cover. Therefore, the cube guide 3 and the deflector 10 are provided so as to cover the entire lower part of the ice making unit 1. (See Figure 2)

Next, the detailed shape of the deflector 10 will be described with reference to FIGS.
Referring to FIG. 4, the deflector 10 includes a substrate portion 11 having a cross section having a parallelogram shape. In the substrate part 11, the end surface 11a on the direction A side has a shape in which the lower end 11ab is inclined toward the direction A side.
Referring to FIG. 3, the deflector 10 includes a plurality of ribs 12 on the upper surface 11 c of the substrate portion 11 along a direction A parallel to the tilt direction of the deflector 10. The ribs 12 have a triangular cross section that is a convex cross section in a direction perpendicular to the direction A, and are provided at equal intervals. Further, the rib 12 extends to the end of the substrate portion 11 on the direction B side, extends to the front of the end portion of the substrate portion 11 on the direction A side, and terminates at the end portion 12a.
Therefore, a plurality of flow paths 13a are formed on the upper surface 11c of the substrate portion 11 so as to be partitioned by a plurality of ribs 12 that are a plurality of strip-shaped wall portions. Is configured. Further, the plurality of flow paths 13 a merge together in the vicinity of the end portion on the direction A side of the substrate portion 11, which is downstream of the flow dividing portion 13, thereby forming a merge portion 14.

Further, a box-shaped concave portion 15 is formed adjacent to the end portion 12a, which is the terminal portion of the rib 12, on the side of the direction A in the joining portion 14 of the upper surface 11c of the substrate portion 11. One recess 15 is formed for each rib 12, and has the same width as the bottom width of the rib 12 in the direction perpendicular to the direction A. Further, a hole 16 having a rectangular cross section adjacent to the recess 15 on the direction A side is formed. One hole 16 is formed for each recess 15, has the same width as the recess 15 in the direction perpendicular to the direction A, and penetrates the substrate portion 11. In addition, as for the hole 16, the inner surface 16a facing the end surface 11a of the board | substrate part 11 is parallel to the end surface 11a (refer FIG. 4). Moreover, the hole 16 is located right above the cube guide 3 (refer to FIG. 2). For example, water that has passed through the hole 16 falls into the cube guide 3. Therefore, the recess 15 and the hole 16 are provided at positions between the plurality of flow paths 13a.
Further, referring to FIG. 4, such a deflector 10 is supported by a lower portion attached to a support base 17. Further, the support base 17 is attached to the partition wall 101c (see FIG. 2) of the flow-down ice making machine 101.

Next, the operation of the flow-down ice making machine 101 according to the embodiment of the present invention will be described with reference to FIGS.
Referring to FIG. 1, the water in the ice making water tank 2 is sent to the water sprinkler 1d of the ice making unit 1 as ice making water by a pump (not shown). The sent ice making water is sprinkled from the water sprinkler 1d into spaces partitioned by the partition walls 1aa and 1ba, which are outside the ice making plates 1a and 1b. A low-temperature refrigerant flows through the cooling tube 1c, and the ice-making water sprayed by the endothermic action of the refrigerant is cooled, and ice is gradually generated on the outer surfaces of the ice-making plates 1a and 1b. . In addition, the ice making water which was not produced | generated by ice in the ice making plates 1a and 1b flows down as it is.

A portion of the ice-making water that has flowed down falls directly onto the lower cube guide 3, passes through the long hole 3 b (see FIG. 2) of the cube guide 3, and flows into the ice-making water tank 2. Further, ice making water that does not fall directly on the cube guide 3 falls on the lower deflector 10, flows on the deflector 10, and falls from the deflector 10 onto the cube guide 3. The ice making water that has dropped onto the cube guide 3 passes through the elongated hole 3b (see FIG. 2) of the cube guide 3 and flows into the ice making water tank 2.
Therefore, the ice making water that has not been generated in the ice on the ice making plates 1a and 1b falls directly on the cube guide 3, or the direction of the flow is changed by the deflector 10 and falls on the cube guide 3, and the ice making water tank. Flows into 2.
The ice making water flowing into the ice making water tank 2 is sent again to the sprinkler 1d of the ice making unit 1 by a pump (not shown).
Thus, the ice produced in the ice making plates 1a and 1b gradually increases as the ice making water is circulated.

  When the ice generated in the ice making plates 1a and 1b reaches a predetermined size, the ice making water circulation in the ice making water tank 2, that is, the ice making operation is stopped, and the generated ice is removed from the ice making plates 1a and 1b. Iced. At this time, hot gas is caused to flow into the cooling tube 1c, and normal temperature tap water is supplied to the sprinkler 1d. The tap water supplied to the water sprinkler 1d flows through the internal deicing water channel 1db, and is sprinkled between the ice making plates 1a and 1b through a hole at the bottom (not shown). Therefore, the generated ice is warmed by the hot gas and the tap water flowing between the ice making plates 1a and 1b. As a result, melting of the ice generated at the contact surface with the ice making plates 1a and 1b occurs, and the ice falls due to its own weight.

A part of the fallen ice directly falls on the lower cube guide 3, and the others fall on the deflector 10, and then slide on the deflector 10 along the inclination direction and fall on the cube guide 3. The ice that has fallen on the cube guide 3 is guided to the elongated hole 3b (see FIG. 2) of the guide surface 3a of the cube guide 3, slides down along the inclined direction, and falls to the ice storage tank 4.
The tap water sprinkled from the water sprinkler 1d flows down between the ice making plates 1a and 1b and falls directly on the cube guide 3 or the cube 10 via the deflector 10 like the ice making water at the time of ice making. It falls on the guide 3 and flows into the ice making water tank 2.

Here, the operation of ice-making water that has fallen on the deflector 10 during ice making and tap water during ice removal will be described in detail.
Referring to FIG. 2, during ice making, a part of the ice making water sprayed from the sprinkler 1 d (see FIG. 1) and flowing down the ice making plates 1 a and 1 b falls on the deflector 10.
Further, referring to FIG. 3, the ice making water dropped on the deflector 10 collides with the rib 12 and is distributed to the adjacent flow path 13a or directly flows into the flow path 13a.
Since the ice making water that has fallen on the deflector 10 is collected in the flow path 13a, the flow rate of the ice making water that flows through the flow path 13a is, for example, that the deflector 10 is a simple plate, and the deflector when the ice making water falls on this deflector. There is an increase with respect to the ice making water flow rate above.
The ice-making water that has flowed into each of the flow paths 13a flows along the flow path 13a and is diffused at the junction 14 downstream thereof.

The ice making water that has flowed out and diffused from the flow path 13a merges with the respective ice making water that has flowed out and diffused from the adjacent flow paths 13aa and 13ab, for example, at the merging portion 14. Therefore, in the junction part 14, the flow of planar ice making water which spreads continuously over the width | variety of the whole some flow path 13a through which ice making water flows is formed.
The ice making water that forms a planar flow in the merging portion 14 falls onto the cube guide 3 (see FIG. 2) via the end surface 11a of the substrate portion 11 serving as the end of the deflector 10, and the ice making water tank 2 (see FIG. 2). 2). Furthermore, the ice-making water falling through the end surface 11a forms a cylindrical water film 18 (see FIG. 2) that is arcuate from the lower end 11ab of the end surface 11a downward.
At this time, the impact of water dropped from the deflector 10 onto the cube guide 3 is reduced as compared with, for example, the case where the deflector 10 is a simple plate, and the splash of ice-making water in the cube guide 3 is reduced. (See Figure 2)

Returning to FIG. 2, a part of the ice making water flowing down the ice making plates 1 a and 1 b falls directly on the cube guide 3 and is stored in the ice making water tank 2. A part of the ice making water that has fallen on the cube guide 3 collides with the cube guide 3 and jumps and splashes around the water, but the splashed ice making water is absorbed by the water film 18 and falls from the deflector 10. The ice making water tank 2 accommodates the ice making water. For this reason, the ice making water splashed in the cube guide 3 does not splash outside the cube guide 3, that is, outside the ice making water tank 2 and flow into the ice storage tank 4 (see FIG. 1).
Next, at the time of deicing, a part of the tap water sprinkled from the sprinkler 1d (see FIG. 1) and flowing between the ice making plates 1a and 1b falls directly on the cube guide 3, and the other is the deflector 10 Fall into. The ice making water dropped on the deflector 10 flows into the flow path 13a (see FIG. 3) in the same manner as during ice making.

Referring to FIG. 3, the amount of water sprayed at the time of deicing is much smaller than that at the time of ice making, so the tap water flowing into each of the flow paths 13a forms a flow that fills the entire width of each flow path 13a. It flows along the corner 13ac formed by the flow path 13a and the rib 12.
The tap water flowing along the corner 13ac and flowing out of the flow path 13a is captured in the recess 15 adjacent to the downstream end 12a of the rib 12, flows into the recess 15, and further communicates with the recess 15. Then, it falls below the deflector 10 through the downstream hole 16. In addition, since the cube guide 3 (refer FIG. 2) is located under the hole 16, the tap water which dropped the hole 16 passes through the cube guide 3 (refer FIG. 2), and the ice-making water tank 2 (refer FIG. 2). 2).
For this reason, the tap water that has flowed out of the flow path 13a does not wrap around the back surface, which is the lower surface of the substrate portion 11, due to the surface tension at the lower end 11ab of the substrate portion 11 of the deflector 10.

  As described above, the flow-down type ice making machine 101 in the embodiment includes the ice-making plates 1a and 1b that generate ice from the flowing-down water, the ice-making water tank 2 that stores the water that flows down the ice-making plates 1a and 1b, and the ice-making plate. A cube guide 3 provided between 1a and 1b and the ice making water tank 2 that allows passage of water but does not allow passage of ice having a predetermined size generated by the ice making plates 1a and 1b; 3 and the ice making plates 1a and 1b, and a plate-like deflector 10 for guiding the water flowing down the ice making plates 1a and 1b to the cube guide 3. Further, the deflector 10 is inclined toward the cube guide 3 so that the water flowing down the ice making plates 1a and 1b flows into the cube guide 3, and the deflector 10 is inclined on the surface of the deflector 10 on the ice making plates 1a and 1b side. It has the diversion part 13 which consists of several flow paths 13a provided along the direction, and the confluence | merging part 14 where the several flow paths 13a merge.

  As a result, the water that has flowed down the ice making plates 1a and 1b and dropped on the deflector 10 is distributed to the plurality of flow paths 13a of the flow dividing section 13 of the deflector 10, and flows down the plurality of flow paths 13a. Therefore, the flow of water falling on the deflector 10 is dispersed without being concentrated in one place. The plurality of flow paths 13a merge on the deflector 10 at the downstream merge section 14, but the water flowing down each of the plurality of flow paths 13a diffuses after flowing out from the flow path 13a to the merge section 14, Similarly, it merges with the diffused water in the adjacent flow path 13a and is united and falls from the tip 10c of the deflector 10. At this time, the merged water forms a planar flow that continuously spreads over the entire width of the plurality of flow-down channels 13 a in the merge portion 14, and extends downward in an arc from the tip portion 10 c of the deflector 10. It falls onto the cube guide 3 while forming the water film 18. For this reason, since the impact of the water falling on the deflector 10 is reduced as compared with the case where the flow path 13a is not formed in the deflector 10, the splash of water in the cube guide 3 can be reduced.

  Further, water that has flowed down the ice making plates 1 a and 1 b and dropped directly onto the cube guide 3 splashes in the cube guide 3, but the splashed water is absorbed by the water film 18 formed at the tip portion 10 c of the deflector 10. . For this reason, it is possible to prevent water that has directly dropped onto the cube guide 3 from jumping to the outside of the cube guide 3. Therefore, the flow-down type ice making machine 101 can prevent water from splashing into the ice storage tank 4, thereby enabling efficient ice making.

Further, the ice making plates 1a and 1b are sprinkled with water during ice making as well as during ice making. In particular, since the amount of water sprayed at the time of deicing is less than that at the time of ice making and there is no water force, the water sprayed is usually at the tip end portion 10c of the deflector 10 due to the surface tension of the water. Try to wrap around to the back side. Further, the water that has flowed around falls to a position off the cube guide 3 and flows into the ice storage tank 4. Therefore, the recess 15 provided in the junction 14 downstream of the plurality of channels 13 a captures water flowing down the channel 13 a during deicing, and further, a hole 16 provided downstream of the recess 15. However, the water captured in the recess 15 is dropped as it is onto the lower cube guide 3. Therefore, even when the inclination angle of the deflector 10 is loose, it is possible to prevent water from flowing around the tip portion 10c of the deflector 10. Thereby, the dimension which occupies the up-down direction of the deflector 10 is reduced, and size reduction of the flow-down type ice making machine 101 can be achieved.
Further, when the size of the hole 16 is increased, the amount of water passing through the hole 16 increases, so that a large amount of ice making water falls from the hole 16 during ice making, and water splashes are generated in the cube guide 3. However, by providing the recess 15 and the hole 16, the area for capturing water can be increased without increasing the size of the hole 16. Thereby, at the time of ice making, the water capture at the time of deicing can be performed effectively without increasing the amount of ice making water flowing down from the hole 16.

Further, by shifting the recess 15 and the hole 16 with respect to the extending direction of the flow path 13a, the ice-making water having a water flow that flows through the flow path of the deflector 10 is not hindered in the ice making process. The water film 18 can be effectively formed by falling from the front end portion 10c of the deflector 10 via the merging portion 14 without flowing in a large amount from 16.
In addition, at the time of deicing, water without water flowing through the flow path 13a of the deflector 10 flows along the flow path 13a and the corners 13ac of the ribs 12, but this water is removed by making the recess 15 adjacent to the ribs 12. Is effectively captured in the recess 15 and can fall into the cube guide 3 below the hole 16.
Further, by making the cross section of the rib 12 into a triangular shape, that is, a shape protruding upward, water that has dropped onto the deflector 10 does not splash even if it collides with the rib 12, and a flow path adjacent to the rib 12. 13a can be effectively distributed.

Further, in the embodiment, the flow path 13a in the deflector 10 is formed by the substrate portion 11 and the ribs 12, but a groove may be formed in the substrate portion 11 to form a flow path.
In the embodiment, the rib 12 in the deflector 10 has a triangular cross section. However, the rib 12 is not limited to this, and may have a semicircular or semielliptical cross section, or a rectangular cross section. Also good.
In the embodiment, the cube guide 3 has the elongated hole 3b in the guide surface 3a. However, the present invention is not limited to this, and the cube guide 3 may have a mesh shape.

1 is a cross-sectional side view of a flow-down ice making machine according to an embodiment of the present invention. It is a cross-sectional side view which shows the structure around the deflector of FIG. It is a perspective view which shows the principal part of the deflector of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3.

Explanation of symbols

  1a, 1b Ice making plate, 2 Ice making water tank (water tank), 3 Cube guide, 10 Deflector, 12 Rib (wall part), 13 Dividing part, 13a Flow path, 14 Merge part, 15 Recessed part, 16 hole, 101 Downflow type Ice machine.

Claims (4)

An ice making plate that produces ice from flowing water;
A water tank for storing water flowing down the ice making plate;
A cube guide which is provided between the ice making plate and the water tank and allows the passage of water, but does not allow the passage of ice having a predetermined size generated by the ice making plate;
A plate-shaped deflector that is provided between the cube guide and the ice making plate and guides the water flowing down the ice making plate to the cube guide;
The deflector is
Inclining toward the cube guide so that the water flowing down the ice making plate flows into the cube guide,
In the surface of the deflector on the ice making plate side,
A flow dividing portion comprising a plurality of flow paths provided along a direction in which the deflector is inclined;
A falling ice maker having a merging portion that is located downstream of the diverting portion and where the plurality of flow paths merge. The deflector is
In the junction,
A recess,
A hole that communicates with the recess downstream of the recess and penetrates the deflector;
The flow-down type ice maker according to claim 1, wherein water that has passed through the hole falls into the cube guide. The flow-down type ice maker according to claim 2, wherein the concave portion and the hole in the deflector are provided at positions between the plurality of flow paths. The plurality of flow paths in the deflector are partitioned by a plurality of strip-shaped wall portions,
The flow-down type ice making machine according to claim 3, wherein each of the plurality of wall portions is adjacent to the concave portion.

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