JPH0120616Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application This invention relates to an automatic ice making machine, and particularly to a support mechanism for an ice making chamber and a cutting frame thereof.

b. Prior Art FIG. 2 is a sectional view showing an example of a conventional automatic ice maker, in which a main body frame 1 includes a refrigerator compartment 2, an ice storage compartment 3, an ice compartment 4 having a large number of small ice compartments 4a, etc. is provided. The ice making chamber 4 is fixed to a mounting frame 7 supported by the main body frame 1 with bolts 5 and nuts 6. Further, a resin pipe 8 and a heat insulating sheet 9 are provided between the ice making chamber 4 and the mounting frame 7.

The conventional automatic ice making machine is configured as described above, and ice making water is supplied to the small ice making chamber 4a from below by a fountain, and the evaporator 1 is disposed above the ice making chamber 4.
It is cooled by cold heat from 0 and freezes.

By the way, the ice-making compartment 4 of the conventional automatic ice-making machine is fixed to the mounting frame 7 by bolts 5 and nuts 6, which are good thermal conductors, and the cold heat from the ice-making compartment 4 is conducted to the mounting frame 7 through the bolts 5, and the evaporator When the thermal load on the bolt 5 and the mounting frame 7 increases, water droplets form on the surface of the bolt 5 and the mounting frame 7, causing rust, and the rust mixes into the ice product. As a means to eliminate the drawbacks, the mounting frame 7
A heat insulating sheet 9 is attached to the lower surface of the bolt 5.
The resin tube 8 is coated with the following:
I had the following problem:

(1) The number of parts increases, and it takes more time to manufacture the automatic ice maker.

(2) The ice making compartment 4 communicates with the main body frame 1 via bolts 5 and mounting frames 7, which are good thermal conductors.
The loss of heat to the evaporator 1 is unavoidable.
The heat load relative to 0 becomes large.

(3) The distance between the mounting frame 7 and the lower end of the ice making compartment 4 increases, and the effective volume of the ice storage compartment 3 inevitably decreases accordingly.

c. Problems to be Solved by the Invention As mentioned above, the conventional automatic ice maker has problems such as a large number of parts and a large heat load on the evaporator 10.

d. Means for Solving the Problems In the automatic ice making machine of this invention, the ice making chamber 14 and the cutting frame 15 are supported at one end by a heat insulator 18 attached to the mounting frame 11.

e Function The heat insulator 18 of the automatic ice maker of this invention blocks the conduction of cold heat from the ice making compartment 14 to the main frame 11, so that the cold heat of the ice making compartment 14 is transferred to the main body frame 11.
It is prevented from being released into the outside air through the air and is effectively used for ice growth. Also, cut frame 15
The heat is prevented from being released into the outside air through the main frame 11, and is effectively used for melting and cutting the ice from the ice-making compartment 14.

f. Example Hereinafter, an example of the automatic ice making machine of this invention will be described with reference to the drawings. FIG. 1 is a structural explanatory diagram showing an embodiment of this invention, in which a box-shaped main frame 11 includes a refrigerator compartment 12, a water storage 13, an ice making compartment 14 made of a good thermal conductor, a cutting frame 15, etc. is provided. Inside the ice making chamber 14, first partition plates 14b are arranged in a grid pattern to form a large number of small ice making chambers 14a, and an evaporator 17 is attached to the outer surface 16 of the first partition plates 14b. Cutting frames 15 are provided below the ice making chamber 14 at regular intervals. The cut frame 15 is formed by a first partition plate 14b and a second partition plate 15b facing each other, and a hot gas pipe 22 is attached to the circumferential side thereof. Note that an electric heater may be attached to the circumferential side of the cutting frame 15.

Flange part 14 as an attached part around ice making chamber 14
The inner circumferential edge of a heat insulating plate 18, which is a heat insulating body, is clamped by bolts 19 between the cut frame 15c and the flange 15c around the cut frame 15. On the other hand, the outer peripheral edge of the heat insulating plate 18 is fixed to the upper part of the side plate 11a with bolts 20. In this way, since the heat insulating board 18 is arranged around the ice making compartment 14 and the cutting frame 15, the ice making compartment 14 and the cutting frame 15, the evaporator 17, and
With the exchange of heat between the hot gas pipe 22,
The heat is prevented from being released into the outside air through the main body framework 11. Further, since the heat insulating plate 18 is adapted to support the ice making chamber 14, the cutting frame 15, the evaporator 17, etc., it has sufficient mechanical strength to withstand them. The bolt 20 is the ice storage 1
The inner box 21 is fixed to the side plate 11a by passing through the upper part of the inner box 21 forming the inner box 3.

In addition, around the inner box 21 and inside the top plate 23,
Insulating materials 24, 25 are provided, and these insulating materials 24, 25 prevent the heat within the main body framework 11 from being released into the outside air.

Next, the operation of the automatic ice maker having the above configuration will be explained. The ice-making compartment 14 is cooled by the action of the refrigerant passing through the evaporator 17 . On the other hand, ice-making water flows upward from a fountain pipe (not shown) to each ice-making compartment 1.
Water is sprayed into the tank 4a, and part of it freezes due to heat exchange with the refrigerant. Furthermore, as the ice-making water fountain continues, ice grows in the ice-making chamber 14a, and just before ice-making is completed, adjacent ice that has grown in the ice-making chamber 14a becomes connected to each other. In this state, the ice making thermometer (not shown) detects the completion of ice making, the supply of ice making water to the ice making chamber 14 is stopped, and high temperature gas is supplied to the evaporator 17 and the hot gas pipe 22 to remove ice. enter the cycle.

When the deicing cycle begins, the ice making compartment 14 is gradually heated by the high temperature gas and the temperature rises, causing the ice making compartment 1 to rise.
The ice in the second partition plate 15b melts at its contact surface and gradually starts to fall due to its own weight, and is located at the upper end of the second partition plate 15b. Thereafter, the connected ice is melted and cut by the second partition plate 15b heated by the heat from the hot gas pipe 22.
You will get well-shaped ice cubes.

Next, when the ice from the ice maker 14 finishes falling into the ice storage 13, the temperature of the ice maker 14 rises rapidly, so a deicing thermometer (not shown) is activated, and as a result, the evaporator 17, hot gas pipe The supply of hot gas to 22 is stopped and the ice-making cycle begins again.

In addition, in the above embodiment, the heat insulating board 18 is attached to the main body frame 1.
1, but may be supported by the main body frame 11 via another attachment member. This invention can also be applied to a so-called open cell type ice making machine in which each ice making chamber is formed into a cup shape by a separate member and the ice making chamber is assembled into an ice tray with its opening facing down.

g. Effects of the invention As explained above, according to the automatic ice maker of this invention, the ice making chamber 14 and the cutting frame 11 are supported by the heat insulator 18 provided around them, so the following effects can be achieved. can get.

(1) The ice making chamber 14 and the cutting frame 15 are supported by the same heat insulator 18, and the automatic ice making machine is simple and inexpensive to manufacture without using any special parts.

(2) Heat in the ice making chamber 14 is prevented from being conducted to the outside by the heat insulator 18, and the heat is effectively used for growing and melting ice, improving ice making ability.

(3) The conduction of heat to the outside in the cut frame 15 is prevented by the heat insulator 18, and the heat is
Effectively used for cutting, improving ice making ability.

(4) It is possible to prevent the cold and heat of the ice-making compartment 14 from being conducted to the main body frame 11, causing dew to form on its surface and causing rust.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the automatic ice maker of this invention, and FIG. 2 is a sectional view showing an example of a conventional automatic ice maker. 11...Main frame, 14...Ice making room, 14a...
...Ice making compartment, 15...Cut frame, 18...Insulating board (insulator).

Claims (1)

[Scope of utility model registration request] A large number of ice-making compartments 14 are provided within the main body frame 11.
In an automatic ice making machine that makes ice by supplying water for ice making from below to an ice making compartment 14 having a fountain, the outside is attached to the main frame 11 and the inside is attached to the ice making compartment 14.
A heat insulator 1 attached to the ice making chamber 14 to support the ice making chamber 14
8, and a cut frame 15 that faces the ice making chamber 14 with a space formed therein and is attached to the inside of the heat insulating body 8 and supported by the insulating body 18, and is formed in the small ice making chamber 14a. An automatic ice making machine characterized in that ice falls under its own weight and is melted and cut by the cutting frame 15.