JPS5843369A - Automatic ice machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic ice making machine that continuously produces ice cubes of a fixed size.

In a conventional automatic ice maker with ice making compartments, an ice making compartment with a large number of ice making compartments that open downward is arranged horizontally, and a water tray is installed on the bottom side of the compartment to supply ice making water to the ice making compartment. Upon completion, the water tray rotated and tilted around the water tray support point to remove ice. The ice adhering to the fountain hole of the water tray was melted by supplying water from above the water tray.

However, the ice attached to the fountain hole of the water tray is caused by the fact that the water supply is a natural flow and the flow route is not fixed.
It was not possible to comb the water, requiring a large amount of water, and was also time consuming.

Therefore, the present invention solves the above-mentioned problem by making it possible to effectively supply water to the water fountain hole of the water tray.One embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 indicates an ice-making compartment that opens in one direction (downward in the figure). 4 evaporators 6 are provided to cool the ice making compartment 1.

It is fixed with a screw 8 with a spacer 7 interposed therebetween. On the other hand, the opening on the lower surface of the ice making compartment 1 is closed with a water tray 9, and a water supply pipe section 10 and a drain pipe section 11 are formed on the lower surface of the water tray 9, and a drain pipe section 11 is formed on the side of the groove section 12. One end of the groove 12 is opened to the groove 12. A large number of water fountain holes 13 are provided in the water tray 9 at a location corresponding to the center of each ice-making compartment 2, communicating with the water supply pipe section 10, and a drainage pipe is provided in the water tray 9 adjacent to the water fountain hole 13. A large number of drainage holes 14 communicating with the portion 11 are provided. The fountain hole 13 and the drain hole 14 are provided at a lower position than the top surface of the water tray 9, and each fountain hole 1
3 and drainage hole 1. Further, an ice-making water tank 16 is provided at the lower part of the open end of the groove section 12, and a "pump device 16" is disposed inside the ice-making water tank 16, and the pump discharge port 17 and the water supply pipe section 1.
0 through a circulation pipe 18.

The water tray 9 is fixed to the water tray support plate 19 with screws or the like, and the water tray support plate 19 is slidably fitted to a sliding rod 21, and the sliding rod 21 is attached to the top. On board 6, 5m'li%2. Yo, Eogaea.

Ru. Further, the water tray support plate 19 and the support metal fitting 22 are pulled together by a spring 23. Further, the water trays 9 are connected to each other by a connecting plate 25 which is configured in a parallel manner.

The ice-making water circulation system 4 compresses the refrigerant in the compressor 26, liquefies the refrigerant in the condenser 27, transfers the liquefied refrigerant to the expansion valve 28, evaporates it in the evaporator 6, and cools the ice-making chamber 1. Further, the outlet of the compressor 26 and the inlet of the evaporator 6 are directly connected to the connecting pipe 30 via the hot gas valve 29, and the freezing completion valve 29 of the ice making chamber 1 is opened to supply the hot gas to the evaporator 6. is introduced, the ice making chamber 1 is heated, and a deicing operation is performed. Further, a water supply pipe 32 is disposed above the water tray 9, and when the water supply valve 31 is operated, water is supplied above the water tray e. Each of the above parts is 1. p',,
, as shown in the figure, is housed in the main body A.

Next, the operation centered on the opening and closing movement of the water tray 9 having the above negative configuration will be explained.

First, the water supply valve 31 is opened, a certain amount of water is supplied to the ice-making water tank 16 through the water supply pipe 32, and the pump 16 supplies ice-making water to the ice-making chamber 2 from the water fountain 13 through the water supply pipe section 10. At this time, the water tray 9 is pulled by the spring 23 and is in close contact with the lower surface of the ice making chamber 1 (position A in FIG. 4).

The water supplied from the fountain hole 13 to the ice-making chamber 2 is
Ice is grown in the ice making chamber 2, and the remaining cooling water is drained through the drainage hole 1.
4 and drain pipe section 11. Ice making water tank 1 passes through groove 12
6, and the above circulation is repeated until the ice making chamber 2 is filled with ice. When each ice making chamber 2 is completely filled with ice, the control circuit stops the pump device 16, turns on the drive source 24, and connects the water tray 9 to the water tray 2 via the connecting plate 26.
is drawn toward the drive source 24 and stops at a certain position (FIG. 4, position A').

As a result, a gap is created between the lower surface of the ice-making compartment 1 and the water tray 9. Further, at the same time as the drive source 24 is powered on, the hot gas valve 29 is opened, the ice making chamber 1 is heated, and ice is removed. When this water tray 9 is away from the ice making chamber 1, water is supplied to the surface of the water tray 9 through a water supply pipe 32, and the water is supplied while melting the ice adhering to it. Here, as shown in FIG. 6 or FIG. 6, the upper surface of the water tray 9 has a groove portion 33 or a concave surface 34, and a water fountain 13 is provided in the upper surface of the water tray 9. Because the drainage hole 14 is located, water is supplied from the water supply pipe 32 through the groove 33 or the concave surface 34.
It can flow through the ice and effectively melt the ice adhering to various parts. After the deicing is completed, the drive/power source 24 applies a signal to loosen the force pulling the water tray 9, so the water tray 9 returns to its original state (in close contact with the lower side of the ice making chamber 1) by the force of the spring 23. Returning, close the hot gas valve 2e and return to the ice making process. Note that the above-mentioned grooves 33 or concave surfaces 34 independently connect each fountain hole 13 and each drainage hole 14, but this groove or concave surface is applied only to the fountain holes 13 and not to the drain holes. A considerable effect can also be expected.

In this manner, the present invention provides at least each water fountain hole of the water tray disposed on the bottom surface of the ice-making chamber at a position lower than the top surface of the water tray to communicate with each other, and a water supply pipe is arranged above the water tray. Therefore, the ice in the fountain hole of the water tray can be melted in a short time with a small amount of water, making it possible to make ice effectively.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a main part showing an embodiment of the present invention, Fig. 2 is a sectional view showing a schematic configuration for explaining the same, Fig. 3 is an ice making compartment,
FIG. 4 is a side view for explaining the operation of the water tray, and FIGS. 6 and 6 are perspective cross-sectional views showing embodiments of the water fountain portion of the water tray. 1... Ice making room, 2... Ice making small room, 4.
... Ice making water circulation system, 6 ... Evaporator, 9.
...Water dish, 13...Fountain hole, 16...
... Ice making water tank, 16 ... Pump device, 2
4... Drive source. Name of agent: Patent attorney Toshio Nakao and one other person. Ying:. Figure 1 Figure 2 Figure 3 (A) (A')

Claims (1)

[Claims] An ice-making compartment having a large number of ice-making compartments that open in one direction, a water tray having a number of water fountains disposed on the underside of the ice-making compartment and spouting ice-making water into the ice-making compartment, and supplying water to the ice-making compartment through the fountain holes. an ice-making water tank that stores a predetermined amount of ice-making water; and an ice-making water circulation system that supplies the ice-making water in the tank to the ice-making chamber through a pump device and circulates it to the ice-making water tank. An automatic ice maker in which at least each water fountain hole is provided at a position lower than the top surface of the water tray so as to communicate with each other, and a water supply pipe is arranged above the water tray.