WO2008032368A1

WO2008032368A1 - Down flow type ice making machine

Info

Publication number: WO2008032368A1
Application number: PCT/JP2006/318067
Authority: WO
Inventors: Hiroki Yamaguchi; Masaaki Kawasumi; Tomoyuki Sanada; Seiji Kobayashi
Original assignee: Hoshizaki Denki Kabushiki Kaisha
Priority date: 2006-09-12
Filing date: 2006-09-12
Publication date: 2008-03-20
Also published as: CN101449119B; JPWO2008032368A1; US20090173090A1; CN101449119A

Abstract

A down flow type ice making machine in which an ice storage detector is protected against damage and occurrence of failure can be suppressed. An ice storage chamber (12a) for storing ice blocks (M) is defined in an ice storage compartment (12). Upper rear wall (16) of the ice storage compartment (12) is formed of a wall portion (16a) extending vertically, and a wall portion (16b) extending horizontally rearward from the lower end of the vertical wall portion (16a). At an upper portion in the ice storage chamber (12a), a down flow ice making unit (18) is arranged while spaced apart by a predetermined interval forward from the vertical wall portion (16a) and ice blocks (M) produced by the ice making unit (18) are stored in the ice storage chamber (12a). Below the ice making unit (18), an ice making water tank (32) equipped with a section (32a) for collecting ice making water not used for making ice blocks in the ice making unit (18) is disposed. An ice storage detector (40) for detecting the ice blocks (M) fully filled in the ice storage chamber (12a) is mounted on the horizontal wall portion (16b) of the ice making water tank (32) located in the rear of the collecting section (32a).

Description

Specification

Flowing ice machine

Technical field

TECHNICAL FIELD [0001] The present invention relates to a flow-down type ice making machine in which a flow-down type ice making unit is arranged above an ice storage room defined in an ice storage, and ice blocks produced by the ice making unit are stored in the ice storage room. Is.

Background art

[0002] As an ice making machine that automatically manufactures ice blocks, a pair of ice making plates are arranged substantially vertically above the inside of an ice storage chamber that is internally defined in an ice storage, with an evaporation tube that forms a refrigeration system in between The ice-making water is flown down to the surface (ice-making surface) of each ice-making plate cooled by the refrigerant circulated and supplied to the evaporation pipe during ice-making operation to generate ice blocks. There is known a flow-down type ice making machine that deices ice blocks obtained by shifting to operation and stores them in an ice storage chamber (see, for example, Patent Document 1).

[0003] The flow-down type ice maker has an ice storage detection device disposed on either the left or right inner side wall that defines the ice storage chamber, and the ice storage detection device indicates that the ice block stored in the ice storage chamber has reached a predetermined amount. When ice detection (full ice detection) is detected, the ice making-deicing operation is stopped and the ice storage is reduced by removing the ice block from the ice storage chamber and the ice storage detector no longer detects the ice block. Operation control to resume the deicing operation is performed.

Patent Document 1: Japanese Patent Laid-Open No. 11-294912

Disclosure of the invention

Problems to be solved by the invention

[0004] The flow-down type ice maker is configured such that an outlet is formed in the front surface of the ice storage, and an ice block is taken out by a scoop inserted into the room through the outlet. In this case, since the ice storage detection device is disposed at a position where the scoop inserted with the outlet force can be contacted, the scoop etc. comes into contact with the ice storage detection device when the ice lump is taken out, and the ice storage detection device There was a risk of damage.

[0005] Further, the ice storage detection device is provided when taking out the ice block from the ice storage chamber. If the ice block force on the side is taken out, only the ice block on that side will decrease, and the ice storage detector will not detect that the ice storage chamber is full, although the ice storage chamber is almost full. Driving will resume. In this case, on the side where the ice block is not taken out, the ice block is accumulated up to the position of the ice making plate, and thereafter, the ice block produced by the flow-down type ice making unit is prevented from falling from the ice making plate, and double ice making is performed. May cause malfunction.

[0006] In view of the above-described problems inherent in the conventional flow-down type ice making machine, the present invention has been proposed to suitably solve these problems, and prevents the ice storage detection device from being damaged. An object of the present invention is to provide a flow-down type ice maker that can suppress the occurrence of water.

Means for solving the problem

[0007] In order to overcome the above-mentioned problems and to suitably achieve the intended purpose, a flow-down type ice maker according to the invention of claim 1 of the present application provides:

An ice storage room in which ice blocks are stored is internally defined, and an ice storage with an ice block outlet formed on the front side, and ice making that is arranged to extend in the left-right direction above the inside of the ice storage chamber and is supplied down A flow-down type ice maker comprising a flow-down type ice making unit that makes water and a recovery means that is disposed below the flow-down type ice making unit and collects ice-making water that has not been made by the flow-down type ice making unit.

An ice storage detection device for detecting that ice blocks are stored in a full ice state in the ice storage chamber is disposed behind the collecting means.

According to the first aspect of the present invention, the recovery means can prevent the scoop or the like inserted into the ice storage chamber from coming into contact with the ice storage detection device, and damage to the ice storage detection device can be prevented.

[0008] In the invention of claim 2, the ice storage detection device includes a detection plate extending a predetermined length in the left-right direction along the flow-down type ice making unit, and is detected by an ice block stored in the ice storage chamber. The gist is that the ice storage detector detects the full ice condition by operating the plate.

According to the invention of claim 2, even when the lateral force ice block of the left or right side of the ice storage chamber is unbalanced and taken out, the full ice state of the ice block is detected by the detection plate extending in the left-right direction. Therefore, proper ice making and deicing operations can be controlled to prevent double ice making and prevent failures.

[0009] In the invention of claim 3, the flow-down type ice making unit is constituted by a pair of ice making plates facing each other in the front-rear relationship, and ice blocks falling from both ice making plates are directly below the flow-down type ice making unit. The gist is that it is configured to guide the front and rear of the ice storage chamber via the arranged ice guide member.

According to the invention of claim 3, the ice block can be stored substantially uniformly in the entire ice storage chamber, and the full ice state can be satisfactorily detected by the ice storage detection device disposed behind the collecting means.

[0010] According to the flow-down type ice making machine according to the present invention, it is possible to prevent the ice storage detection device from being damaged when the ice block is taken out.

Brief Description of Drawings

FIG. 1 is a longitudinal side view of a flow-down ice making machine according to an embodiment.

FIG. 2 is a longitudinal front view of a flow-down type ice making machine according to an embodiment.

FIG. 3 is a vertical side view showing the ice storage detection device according to the example.

FIG. 4 is a schematic plan view showing the positional relationship between the ice storage detection device and the ice making water tank according to the example.

FIG. 5 is a front view of the ice storage detection device according to the example.

Explanation of symbols

[0012] 12 ice storage, 12a ice storage room, 18 flow down ice making unit, 20a outlet

26 ice plate, 32a recovery part (recovery means), 38 ice guide member, 40 ice storage detector 52 detection plate, M ice block

BEST MODE FOR CARRYING OUT THE INVENTION

[0013] Next, the flow-down type ice making machine according to the present invention will be described below with reference to the accompanying drawings by way of preferred examples. In the following description, front / rear and left / right are designated when looking at the flow-side ice maker as shown in Fig. 2 unless otherwise specified. It shall be.

Example

FIG. 1 is a longitudinal side view showing a flow-down type ice maker according to an embodiment, in which the flow-down type ice maker 10 stores a predetermined amount of ice blocks M in an ice storage 12 having a heat insulating structure. 12a is internally defined. The ice storage 12 is formed in a box shape that opens upward, and a top plate 14 is detachably disposed at an upper end thereof so as to close the upper opening. The upper rear wall 16 constituting the ice storage 12 is composed of a vertical wall portion 16a extending vertically and a horizontal wall portion 16b extending horizontally rearward from the lower end of the vertical wall portion 16a. Is formed. In the upper part of the ice storage chamber 12a, a flow-down type ice making unit 18 is disposed so as to be spaced a predetermined distance forward from the vertical wall portion 16a so as to extend in the left-right direction by a predetermined length. The ice block M produced in Unit 18 falls into the ice storage room 12a and is stored.

[0015] On the upper side of the front wall 20 of the ice storage 12, an outlet 20a is opened so as to face obliquely upward as shown in FIG. 1, and a scoop or the like is inserted into the ice storage chamber 12a from the outlet 20a. The ice block M is configured to be taken out. In addition, rails 22a are formed at the upper ends of the left and right side walls 22 and 22 that face the width direction of the ice storage 12 and extend in a predetermined length toward the rear of the front force (Fig. 2). The drawer type opening / closing door 24 capable of opening and closing the outlet 20a is slidably mounted between the rail portions 22a and 22a. That is, by pulling the opening / closing door 24 along the rail portions 22a, 22a from the ice storage chamber 12a to the front side, the door 20 is closed by the opening / closing door 24, and the opening / closing door 24 is moved along the rail portions 22a, 22a. The take-out port 20a is configured to be opened by being stored in the ice storage chamber 12a.

[0016] The flow-down type ice making unit 18 is arranged between a pair of ice making plates 26, 26 opposed to each other in a substantially vertical posture, and between the back surfaces of both ice making plates 26, 26, and a meandering shape constituting a refrigeration system. The ice making plates 26, 26 are arranged in the ice storage chamber 12a so as to face forward and backward as shown in FIG. It should be noted that the ice making plate 26 on the rear side with respect to the vertical wall portion 16a is spaced at an interval that allows the ice blocks M produced by the ice making plate 26 to fall. As shown in FIG. 2, the evaporating tube 28 meanders so that the straight portion 28a extends in the left-right direction of the ice making plate 26, and the straight portion 28a comes into contact with the back surfaces of both ice making plates 26, 26. Yes. During ice making operation, both ice making plates 26 and 26 are forcibly cooled by circulating refrigerant through the evaporation pipe 28. Configured to do. During deicing operation, hot gas (high-temperature refrigerant) is supplied to the evaporation pipe 28 by switching the refrigeration system valve, and the ice making plates 26 and 26 are heated to generate on the surface (hereinafter also referred to as the “ice making surface”). The ice surface of the ice block M is melted, and the ice block M is dropped by its own weight.

On the ice making surface of the ice making plate 26, a plurality of protrusions 26a extending in the up-down direction as shown in FIG. 2 are provided at predetermined intervals in the left-right direction, and a pair of protrusions adjacent in the left-right direction are provided. An ice-making region 30 extending in the longitudinal direction is defined by the strips 26a and 26a. That is, on the ice making surface side of the ice making plate 26 of the embodiment, a plurality of ice making regions 30 are defined in parallel in the left-right direction. The ice making surface facing each ice making region 30 is freed from icing with the ice making surface by deicing operation at the lower end as shown in FIG. 2 and at a substantially intermediate position between the straight portions 28a, 28a spaced vertically in the evaporation pipe 28. Protrusions 26b for separating the formed ice blocks M from the ice making surface are formed.

[0018] Below the flow-down type ice making unit 18, an ice making water tank 32 for storing a predetermined amount of ice making water is disposed. This ice making water tank 32 has a recovery part (recovery means) 32a facing directly under the flow-down ice making unit 18 as shown in FIG. 4 and one end in the left-right direction (right end in the embodiment) of the recovery part 32a. The tank portion 32b is connected and extends rearward. The collecting unit 32a has a bowl shape and the bottom surface is inclined downward toward the tank unit 32b, so that the ice making water and the deicing water received by the collecting unit 32a are allowed to quickly flow down to the tank unit 32b. In addition, a circulation pump (not shown) is disposed in the tank portion 32b, and the ice making water is pumped to the ice making water spreader 34 provided above the flow-down ice making unit 18 via the pump. Yes. A large number of water sprinkling holes (not shown) are formed in the ice making water spreader 34 shown in FIG. 1, and the ice making water pumped from the ice making water tank 32 during ice making operation is supplied to both ice making plates from the water sprinkling holes. It is configured to spray on ice making surfaces that have been cooled to the freezing temperature of 26, 26 respectively. Then, the ice making water flowing down each ice making surface freezes at a portion where the straight portion 28a of the evaporation pipe 28 in the ice making region 30 contacts, so that ice blocks M having a predetermined shape are generated on the ice making surface. It has become.

As shown in FIG. 1, a deicing water supply pipe connected to an external water system is connected to a deicing water spreader 36 provided at the upper part on the back side of both ice making plates 26, 26. Connected through ing. Then, by opening the water supply valve during the deicing operation, the deicing water supplied from the external water system to the deicing water spreader 36 is a large number of sprinkling holes (not shown) drilled in the deicing water spreader 36. The ice making plates 26 and 26 are sprayed and supplied to the rear surfaces of the ice making plates 26 and 26, and flow down to promote melting of the iced surfaces of the ice making plates 26 and the ice blocks M.

[0020] Immediately below the flow-down type ice making unit 18, an ice guide member 38 attached to the upper end portion of the recovery portion 32a in the ice making water tank 32 is disposed in the vicinity. The ice guide member 38 is longer than the width of the ice making plate 26, and has a cross-sectional force in the short direction (front-rear direction) perpendicular to the longitudinal direction, as shown in FIG. The ice guide member 38 is arranged such that the top of the mountain shape faces an intermediate position between the back surfaces of the two ice making plates 26, 26, and the ice mass M falling from the ice making plate 26 located on the front side is transferred to the ice guide member 38. The ice lump M that falls from the ice making plate 26 located on the rear side is guided toward the rear side of the ice guide member 38 while being guided to be discharged toward the front side of the ice storage chamber 12a by the inclined surface that is inclined downward toward the front side. It is configured to guide the discharge toward the rear side of the ice storage chamber 12a with an inclined surface that is inclined downward. A plurality of through holes 38a are formed in each inclined surface of the ice guide member 38, and the ice making water supplied to the ice making surfaces of the ice making plates 26 and 26 during the ice making operation and the ice making plate 26 during the deicing operation. , 26 is recovered to the ice making water tank 32 through the through hole 38a of the ice guide member 38! /.

[0021] In the flow-down type ice making machine 10 of the embodiment, the fact that the float switch (not shown) has detected that the water level in the ice making water tank 32 has dropped to the specified water level after the start of the ice making operation. As a condition, the control means is set to perform the control for stopping the ice making operation and switching to the deicing operation. In addition, when the temperature detection means detects that the temperature of the hot gas after the transition to the deicing operation and heat exchange with the ice making plates 26 and 26 has reached the preset deicing completion temperature, The control means is set to perform control to stop the deicing operation and switch to ice making operation.

[0022] As shown in Fig. 1, it is detected that the ice mass M stored in the ice storage chamber 12a has become full ice on the horizontal wall portion 16b facing the rear of the recovery portion 32a in the ice making water tank 32. An ice storage detector 40 is provided. The ice storage detection device 40 includes a reed switch 44 as a detection means attached to a storage member 42 that is detachably attached to the horizontal wall portion 16b, and a storage device. A detection member 46 that is disposed on the member 42 and swings in the front-rear direction, and a magnet 48 that is a detection means disposed on the detection member 46 are basically provided.

[0023] The horizontal wall portion 16b is provided with a pair of guide portions 50, 50 spaced apart in the width direction as shown in FIG. Flange portions 42c and 42c are provided on both the left and right sides of the accommodating member 42, and the accommodating member 42 is configured to be able to be drawn back and forth with the flange portions 42c and 42c being supported by the guide portions 50 and 50. ing. As shown in FIG. 3, the housing member 42 is formed in a box shape that opens upward and forward, and a mounting portion 42a that opens upward is formed at the center of the inner bottom surface of the housing member 42 in the width direction. Is formed. The lead switch 44 is attached to the attachment portion 42a. Further, bearing portions 42b are formed on both sides in the width direction on the inner front side of the housing member 42, and the detection member 46 is pivotally supported so as to be swingable in the front-rear direction via both bearing portions 42b, 42b. It has been.

[0024] The detection member 46 includes a detection plate 52 extending in a left-right direction with a predetermined length, support shafts 54 and 54 provided at both ends of the detection plate 52 in the width direction, and a center force in the width direction of the detection plate 52. The holding unit 56 extending rearward and the magnet 48 disposed at the rear end of the holding unit 56 are basically configured. Then, by supporting the support shafts 54 and 54 on bearing portions 42b and 42b provided on the housing member 42, the detection member 46 can swing in the front-rear direction around the support shafts 54 and 54. It has become. In the normal position (solid line position in FIG. 3) in a free state where no external force is applied, the detection member 46 is tilted downward into the ice storage chamber 12a from the front end force of the storage member 42. In addition, the magnet 48 is configured to be close to the lead switch 44 attached to the housing member 42. The horizontal dimension of the detection plate 52 is set to a length of 1Z2 or more with respect to the horizontal dimension of the ice storage chamber 12a, and the storage state of the ice mass M stored in the ice storage chamber 12a is detected over a wide range. I can get it.

[0025] When the ice block M contacts the detection plate 52 and receives a pressing force, the detection member 46 in the normal position swings toward the rear side, and the magnet 48 is displaced obliquely upward. The magnet 48 reaches the full ice detection position (a two-dot chain line position in FIG. 3) that is separated from the lead switch 44. When the pressed state by the ice block M is released, the detection member 46 is configured to swing and displace toward the front side under the action of gravity and return to the normal position.

[0026] The lead switch 44 is connected to the control means. The detection member 46 is When the magnet 48 is in the normal position and closes to the reed switch 44, the reed switch 44 is set so as not to output a full ice signal to the control means. Further, when the detection member 46 swings and displaces the normal position force to the full ice detection position so that the magnet 48 is separated from the reed switch 44, the reed switch 44 outputs a full ice signal to the control means. . In the control means, when a full ice signal is input from the reed switch 44 in accordance with the swinging displacement of the detection member 46 to the normal position force full ice detection position, the ice block M reaches a predetermined position in the ice storage chamber 12a. It is set to stop the ice making and deicing operation when it is judged that the stored ice is full. The control means also detects that the full ice detection position in the ice storage chamber 12a is full when the full ice signal is no longer input from the reed switch 44 due to the rocking displacement to the normal position. It is set to start the ice making and deicing operation because it is judged that the ice condition force has decreased.

The detection member 46 in the ice storage detection device 40 is positioned below the lower end of the ice making plate 26 in the flow-down ice making unit 18 as shown in FIGS. 1 and 2, and the ice storage detection device 40 detects full ice. The level of storage of the ice block M when the ice plate is made so that it does not exceed the lower end of the ice-making plate 26. The detection member 46 is positioned behind the recovery part 32a in the ice making water tank 32, and the lower end of the detection member 46 is located above the lower end of the recovery part 32a so as to be opened in the ice storage 12. It is configured not to be directly visible from the outlet 20a. In other words, the recovery part 32a of the ice making water tank 32 is located between the outlet 20a and the detection member 46, and the detection member 46 is hidden behind the recovery part 32a and inserted from the outlet 20a. An ice storage detection device 40 is disposed at a position where the scoop or the like does not easily contact the detection member 46.

[Operation of Example]

Next, the operation of the falling ice maker according to the embodiment will be described. Note that the detection member 46 in the ice storage detection device 40 faces the normal position, and the control means determines that the ice storage chamber 12a has become full.

In the ice making operation, the ice making hydraulic power stored in the ice making water tank 32 is pumped to the ice making water spreader 34 by the circulation pump, and the both ice making plates 26, Ice making water is supplied to each of the 26 ice making regions 30. The ice making plates 26 and 26 are the evaporation tubes 2 8 The ice-making water supplied to the ice-making area 30 of the ice-making plates 26 and 26 is gradually cooled at the contact portion with the straight part 28a in the evaporation pipe 28. Start freezing. The ice making water falling from the ice making plates 26 and 26 without freezing is collected in the ice making water tank 32 through the through holes 38a of the ice guide member 38 and supplied to the ice making plates 26 and 26 again. Circulate.

[0030] When the predetermined time has elapsed and the float switch detects a specified water level, the control means ends the ice making operation and starts the deicing operation. When the ice making operation is completed, the ice making region 30 of the ice making plate 26 is spaced apart in the vertical direction corresponding to the contact portion between the straight portion 28a and the ice making plate 26 in the evaporation pipe 28 as shown in FIG. Thus, a plurality of ice blocks M are generated.

[0031] When the deicing operation is started, the refrigeration system valve is switched to circulate and supply hot gas to the evaporation pipe 28, and the water supply valve is opened and the ice making plate is passed through the deicing water sprayer 36. By supplying deicing water to the back surfaces of 26 and 26, the ice making plates 26 and 26 are heated, and the icing surface with the ice block M is melted. The deicing water flowing down the back surfaces of the ice making plates 26 and 26 is collected in the ice making water tank 32 through the through hole 38a of the ice guide member 38, and is used as the next ice making water. The

[0032] When the ice making plate 26 is heated by the deicing operation, the icing surface between the ice block M and the ice making plate 26 is melted, and the ice block M starts to slide down on the ice making plate 26. The ice mass M sliding down on the ice making plate 26 rides on the lower protrusion 26b, and the ice mass M is separated from the ice making surface of the ice making plate 26 with certainty. The ice mass M that is peeled and dropped from the ice making plate 26 is received by the corresponding inclined surface of the ice guide member 38, and slides downward toward the inclined side to be discharged into the ice storage chamber 12a. In the embodiment, the ice blocks M falling from the ice making plates 26 and 26 are discharged in the front-rear direction by the inclined surface of the ice guide member 38 and are distributed and stored in the wide range of the ice storage chamber 12a. .

[0033] When all ice blocks M are detached from the ice making plates 26, 26 and the temperature detecting means detects the deicing completion temperature due to the temperature rise of the hot gas, the control means, after finishing the deicing operation, Start ice making operation.

[0034] The ice making and deicing operation described above is repeated, and the ice block M stored in the ice storage chamber 12a is When the ice storage detecting device 40 is located, the ice mass M comes into contact with the detecting plate 52 of the detecting member 46 with the front side force. When the detection plate 52 is pressed from the front side by the ice block M, the detection member 46 swings rearward about the support shafts 54 and 54. As a result, as shown in FIG. 3, the magnet 48 disposed on the detection member 46 is separated from the reed switch 44. At this time, a full ice signal is input from the reed switch 44 to the control means. Then, the control means determines that the ice storage chamber 12a is full of ice and controls to stop the ice making / deicing operation.

[0035] The opening / closing door 24 is moved along the rail portions 22a, 22a and accommodated in the ice storage chamber 12a so that the outlet 20a is opened, and the ice storage chamber 12a is opened through the outlet 20a. The ice mass M can be taken out with the inserted scoop. Since the detection member 46 in the ice storage detection device 40 is hidden behind the recovery part 32a in the ice making water tank 32, the ice storage detection that the scoop or the like does not easily come into contact with the detection member 46 when the ice mass M is taken out. Damage to the device 40 can be prevented.

[0036] When the ice mass M is removed from the ice storage chamber 12a and the storage amount is reduced, and the pressing state of the detection member 46 by the ice mass M is released, the detection member 46 swings forward under the action of gravity. As a result, the magnet 48 returns to the normal position close to the reed switch 44. At this time, the full ice signal is not output from the reed switch 44, and the control means determines that the storage amount of the ice block M in the ice storage chamber 12a has decreased from the full ice state and resumes the ice making and deicing operation. To do.

[0037] Here, when the take-out position of the ice block M from the ice storage chamber 12a is biased to either the left or right side, the top of the mountain MO where the ice block M is deposited is left or right as shown in FIG. It becomes a state biased to. In this case, the detection plate 52 of the detection member 46 in the ice storage detection device 40 extends in the left-right direction in the ice storage chamber 12a by a predetermined length as shown in FIG. 2 or FIG. Even if the top portion is deviated to the left or right, the state in which the ice block M is in contact with the detection plate 52 is maintained. Therefore, although the ice storage chamber 12a is substantially full, it can be prevented that the ice storage detection device 40 detects that the ice is full, and the ice making and deicing operation is not resumed. That is, it is possible to prevent the occurrence of double ice making in the flow-down ice making unit 18 by preventing the ice mass M from accumulating up to the position where the ice making plate 26 is disposed on the side where the ice mass M is not taken out, thereby preventing failure. [Example of change]

The present application is not limited to the configuration of the above-described embodiment, and can adopt other configurations as appropriate.

1. In the embodiment, a reed switch in which the full ice signal is turned on and off by the proximity of the magnet is used as the detection means of the ice storage detection device. However, the present invention is not limited to this, and the pressure provided on the detection member The full ice signal is turned on and off by the part (detected means) coming into contact with and away from the switch piece.

V, micro switch to obtain, other photoelectric proximity switch, etc. can be adopted.

2. In the embodiment, the detection member is disposed on the housing member disposed on the horizontal rear wall, but a configuration in which the detection member is directly disposed on the horizontal rear wall may be employed. In this case, the detecting means may be provided on the horizontal rear wall at a position where the detected means comes into contact with or separates as the detecting member swings.

3. The structure of the detection member is not limited to the embodiment, and it can detect full ice by the rocking displacement when the detection plate extending in the left-right direction with a predetermined length is actuated by ice blocks. I just need it.

4. In the embodiment, the case where the collecting unit constituting a part of the ice making water tank is used as the collecting means has been described. However, by changing the shape of the ice making water tank, the tank itself is used as the collecting means. May be. Alternatively, the collecting means and the ice making water tank may be separated, and the ice making water and deicing water collected by the collecting means may be allowed to flow into the ice making water tank through an appropriate pipe line.

Claims

The scope of the claims

[1] An ice storage chamber (12a) in which an ice block (M) is stored and an ice storage (12) with an ice block (M) outlet (20a) formed on the front side and an ice storage chamber (12a) ) And a flow-down type ice making unit (18) that makes ice-making water to be supplied down, and a flow-down type ice making unit (18) that is arranged below the flow-down type ice making unit (18). A flow-down ice maker comprising recovery means (32a) for recovering ice making water that has not been made by the unit (18).

An ice storage detection device (40) for detecting that the ice block (M) has been stored in a full ice state in the ice storage chamber (12a) is disposed behind the recovery means (32a).

A flow-down type ice maker characterized by that.

[2] The ice storage detection device (40) includes a detection plate (52) extending in the left-right direction along the flow-down type ice making unit (18), and is stored in the ice storage chamber (12a). The falling ice maker according to claim 1, wherein the ice storage detection device (40) detects a full ice condition by operating the detection plate (52) on the ice block (M).

[3] The flow-down type ice making unit (18) is composed of a pair of ice making plates (26, 26) facing each other in the front-rear relationship, and ice blocks falling from both ice making plates (26, 26) ( The flow-down type ice maker according to claim 1 or 2, wherein M) is guided to the front and rear of the ice storage chamber (12a) via an ice guide member (38) disposed immediately below the flow-down type ice making unit (18).