JPH0447578Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a down-flow ice maker, and particularly relates to a down-flow ice maker having a structure for guiding unfrozen water and ice to predetermined locations. It is something.

(b) Conventional technology This type of conventional down-flow ice maker is, for example,
As disclosed in Publication No. 57-2866, a guide member is provided at the lower end of a pair of ice-making plates to guide excess ice-making water to a water receiving gutter, and approximately the center of this guide member is connected to the ice-making plate and the water receiving gutter. By bulging outward from the gutter, an outward upward guide surface that guides the guide member, ice, and water, and an inward downward guide surface that guides only water are formed.

(c) Problems to be solved by the invention The above-mentioned prior art falling ice maker prevents the frozen layer from getting caught in the water receiving gutter by simply directing the frozen layer outward through the bulge. However, considering all ice falling conditions, it is not possible to completely solve the problem of ice getting caught between the water receiving gutter and the lower guide surface as long as the guide member and the water receiving gutter are placed apart. .

(d) Means for solving the problem The present invention provides a drop-down type ice maker in which ice-making water flows down the outer surface of a pair of cooling plates arranged approximately vertically to grow ice on each cooling plate. At the lower end thereof, there is a water guide surface that slopes inward to form a tapered shape and guides unfrozen water to the water receiving gutter, and a water guide surface that protrudes outward from the guide surface to guide ice to the outside of the water receiving gutter. A guide member having a large number of ice guide fins is provided, and the water receiving gutter has upper edges on both sides in the longitudinal direction located inward from the protruding ends of the ice guide fins, and is disposed at a position where the lower edges of the fins come into contact with each other. By constructing a type ice maker, the problems of the prior art described above are solved.

(E) Effect According to the above configuration, unfrozen water among the ice-making water flowing down the outer surface of each cooling plate is guided from the lower end of the ice-making plate to the water receiving gutter via the water guide surface of the guide member, and is also used for the deicing operation. Therefore, the ice detached from each cooling plate is guided to the outside of the water receiving gutter by the ice guide fins protruding from the water guide surface. Furthermore, since the upper edges of the water receiving gutter in the longitudinal direction are in contact with the lower end edges of the fins that guide only the ice, ice is reliably prevented from entering and getting caught in the water receiving gutter.

(F) Embodiment Fig. 1 is a vertical cross-sectional view of the main part of the down-flow ice maker of the present invention, and Fig. 2 is a front view of the main part. 2, the running water plates 1A, 2A and a large number of circular ice-making plates 1B, 2B, which have better thermal conductivity than the running water plates 1A, 2A and are exposed substantially flush with the running water plates 1A, 2A, are spaced vertically and horizontally. It is constructed by arranging the following. A refrigeration system evaporation pipe 3 is arranged in a meandering manner between the cooling plates 1 and 2 for heat exchange with the ice making plates 1B and 2B. Further, on the upper part of the cooling plates 1, 2, an ice making water sprinkler 4 is provided, which has water sprinkling ports 4A, 4B for flowing ice making water onto the outer surfaces of the cooling plates 1, 2, and on the inner surfaces of the cooling plates 1, 2, ice making water is provided. Deicing water sprinklers 5 each having water sprinkling ports 5A and 5B are disposed at the bottom of the cooling plates 1 and 2, respectively.
Water guide surfaces 7A and 7B that guide the water to
Spiral-shaped ice guide fins 7C and 7D protrude outward from A and 7B and guide only ice to the outside of the water receiving gutter 6
A guide member 7 made of a resin molded product is provided, which has a spacing narrower than the size of the ice. This guide member 7 is further formed with a water supply passage 7E for collecting deicing water sprinkled from the deicing water sprinkler 5 into the water receiving gutter 6, and ice guide fins 7C at both ends and the center. The positioning plate 7 of the water receiving gutter 6 is placed on the lower side of 7D.
F is provided.

By fitting the water receiving gutter 6 to the positioning plate 7F, the water receiving gutter 6 is aligned with the upper end edges 6 on both sides in the longitudinal direction.
A, 6B are the protruding ends 7 of the ice guide fins 7C, 7D.
The ice guide fins 7C and 7D are located inwardly from each other and are disposed in contact with the lower edges of the ice guide fins 7C and 7D.
Further, a circulation pump 9 for circulating ice-making water to the ice-making water sprinkler 4 is disposed in the water storage tank 8 communicating with the water receiving gutter 6.

In the above configuration, the ice-making water that is force-fed to the ice-making water sprinkler 4 by the circulation pump 9 is supplied to the water sprinkling port 4.
The unfrozen water flows down from the lower ends of the cooling plates 1 and 2 to the outer surfaces of the cooling plates 1 and 2, and gradually freezes onto the ice-making plates 1B and 2B, which are being cooled at this time. The water flows along the water guiding surfaces 7A and 7B as shown by arrow A, is guided to the water receiving gutter 6, is returned to the water storage tank 8, and is circulated again to the water sprinkler 4, and the operation is repeated.

When the prescribed ice-making operation is completed, a large number of lens-shaped ice 10 grows on the cooling plates 1 and 2 centering on the ice-making plates 1B and 2B as shown by dotted lines, and in this state, the watering operation and cooling are performed. The operation is stopped, deicing water is force-fed to the deicing water sprinkler 5, and the water sprinkling ports 5A and 5B are
Deicing water is made to flow down onto the inner surfaces of the cooling plates 1 and 2 from the cooling plates 1 and 2. As a result, the temperature of the cooling plates 1 and 2 is increased by the heat sensitivity of the deicing water, and the temperature of the cooling plates 1 and 2 is increased.
The lenticular ice 10 is removed from B and 2B. This ice 10 has ice guide fins 7C and 7D as shown by arrow B.
The upper edges 6A, 6B of the water receiving gutter 6 are located inside the protruding ends 7C1, 7D1 of the ice guide fins 7C, 7D, and the fins 7C and 7D, the ice 10 is prevented from getting caught in the water receiving gutter 6 or entering into the water receiving gutter 6. ).

Note that the present invention is not limited to the configuration in which the cooling plate is composed of a running water plate and a large number of circular ice-making plates, and the design can be changed without departing from the gist of the present invention.

(g) Effects of the invention As described above, the present invention provides a cooling system for a guide member having a water guide surface that is tapered inwardly and a large number of ice guide fins that protrude outward from the guide surface. It is installed at the lower end of the plate, and the upper edge in the longitudinal direction of the water receiving gutter is located inward from the protruding end of the ice guide fin and is in contact with the lower edge of the ice guide fin, so that unfrozen water is The ice is reliably guided to the water receiving gutter by the guide surface, and the ice is guided to the outside of the water receiving gutter by the ice guide fin. Entry can be reliably prevented.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of the main parts of the down-flow ice maker of the present invention, and FIG. 2 is a front view of the main parts. 1 , 2 ...Cooling plate, 6...Water gutter, 6A, 6B
... Upper edge in longitudinal direction, 7 ... Guide member, 7A, 7
B...Water guide surface, 7C, 7D...Ice guide fin,
7C1, 7D1...Protruding end.

Claims (1)

[Scope of utility model registration request] In a flow-down ice maker in which ice-making water flows down the outer surface of a pair of cooling plates arranged approximately vertically to grow ice on each cooling plate, the lower end of the cooling plate has a tapered shape that slopes inward. and a guide member having a water guide surface that guides unfrozen water to the water receiving gutter and a number of ice guide fins that protrude outward from the guide surface and guide ice to the outside of the water receiving gutter; A falling type ice maker characterized in that the upper edges of the water gutter on both sides in the longitudinal direction are located inward from the protruding end of the ice guide fin and are disposed at a position where the water gutter comes into contact with the lower edge of the fin.