JPH09152242A - Ice making device for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the capacity of a heater for heating pipeline, connecting a feed water tank and an ice making pan. SOLUTION: The main body of a refrigerator is provided with an opening at the front surface thereof while the inside thereof is partitioned by a partitioning wall into upper and lower partitions to form a refrigerating chamber and a freezing chamber. An ice making pan is installed in the freezing chamber while a feed water tank is installed in the refrigerating chamber. The pipeline with a pump connects the feed water tank to the ice making pan through the partitioning wall. The pipeline 26 is fixed together with a heater 28B for heating the feed water tank through a retaining device 27 accommodated in the partitioning wall.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device for a refrigerator.

[0002]

2. Description of the Related Art A conventional ice making device for a refrigerator of this type is used for preventing freezing in a pipe connecting a water tank in a refrigerating room and an ice tray in a freezing room, as described in, for example, Japanese Utility Model Publication No. 55-50551. A heater is provided to prevent water droplets remaining in this pipe from freezing.

[0003]

However, in the conventional ice making device of the refrigerator, since the pipe for water injection is passed through the back wall of the main body, it must be provided in the vicinity of the cooler and heats the pipe. There was a problem of freezing unless the heater capacity was increased.

The present invention solves the above problem,
An object of the present invention is to provide an ice making device for a refrigerator in which the capacity of a heater for heating a pipe connecting a water supply tank and an ice tray can be reduced.

[0005]

According to a first aspect of the present invention, there is provided a main body having an opening on the front surface and a partition wall which divides the inside into upper and lower parts to form a refrigerating room and a freezing room. In a refrigerator ice making device in which a plate is provided with a water supply tank in a refrigerating chamber, and the water supply tank and the ice making plate are connected by a pipe with a pump through the partition wall, the pipe is built in the partition wall. The holder is fixed together with the heater, and the heater with a small heat capacity can prevent the pipe for water injection from freezing.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a refrigerator showing one embodiment of the present invention. FIG. 2 is a sectional view of the automatic ice making machine of the present invention housed in a freezing compartment. FIG. 3 is an exploded perspective view showing the water supply tank and the ice tray of the present invention. FIG. 4 is a perspective view showing a mounting state of the pipe of the present invention. FIG. 5 is an exploded perspective view showing a mounting state of the pipe of the present invention.

A refrigerator 1 comprises a steel box outer box 2 opening forward, an inner box 3 made of hard synthetic resin opening front and incorporated in the outer box at intervals. The main body 5 is constituted by the foamed polyurethane heat insulating material 4 filled between the boxes 2 and 3 by an in-situ foaming method. The inner box 3 is divided into upper and lower parts by a partition wall 6, a refrigerating chamber 7 is formed on the upper side, and a freezing chamber 8 is formed in two stages on the lower side. The front opening of the refrigerator compartment 7 is a door 9 and the front opening of the freezer compartment 8 is a drawer door 1.
At 0, it is openably closed.

A U-shaped frame 11 whose one end is fixed to the rear surface is fixed to the drawer door 10. This frame is the main body 5
It is slidably fitted in the front-rear direction on a fixed rail 12 with a roller provided in the lower container 13 and is internally held by a lower container 13 which is divided into two left and right parts. Above this lower container is an upper container 14
And an automatic ice machine 15 are arranged.

At the back of the freezer compartment 8, there is provided a cooler compartment 19 which is partitioned by a partition wall 16 and accommodates a cooler 17 and a blower 18 arranged above the cooler. The partition wall 16 is provided with a slit 18A in front of the blower 18 in the freezer compartment 8 for blowing out the cool air cooled by the cooler 17.

The automatic ice maker 15 has a mounting frame 20 having an opening at the bottom and an ice tray 2 housed in this frame.
1 and a drive device 22 for rotating the ice tray. An ice tray 23 is formed on one side of the lower container 13 arranged below the ice tray 21.

A water supply tank 24 is fixed in the refrigerating compartment 7, and a pipe 26 is connected to the water supply tank via a pump 25. This pipe has a tip opposite to the water supply tank 24 penetrating the partition wall 6 and opening above the ice tray 21.

Reference numeral 27 denotes a holder for holding the pipe 26 in the partition wall 6. This holder is formed of two parts for holding the pipe 26, and a heater 28 is provided on the upper surface so as to contact the pipe 26. . The heater 28 includes a pipe heating heater 28A and a water supply tank heating heater 28B. The holder 27 is attached to an attachment 29 fixed to the partition wall 6 so as to sandwich the heater 28B for heating the water tank.

In the ice making device of the refrigerator thus constructed, the water in the water supply tank 24 is poured into the ice tray 21 by the pump 25 through the pipe 26. Then, the water poured into the ice tray 21 blows cold air cooled by the cooler 17 into the freezer compartment 8 by the blower 18 and is frozen. The ice frozen in the ice tray 21 is stored in the ice tray 23 after the ice tray is twisted by the drive unit 22 to separate the ice.
The ice tray 21 for which the ice removing work has been completed is returned to the original position by the drive device 22 again. After that, this operation is repeated to automatically make ice.

The pipe 26 for pouring water from the water supply tank 24 into the ice tray 21 is fixed to the partition wall 6 which divides the refrigerating chamber 7 and the freezing chamber 8 with the holder 27, so that the pipe 26 is thermally influenced by the cooler 17. It seems not to. Therefore, the pipe 2
As the pipe heating heater 28A for preventing freezing of the water droplets remaining in the nozzle 6, a heater having a small heat capacity can be used.

Further, the holder 27 holds the pipe 26, and the heater 28B for heating the water supply tank is provided on the upper surface and is attached to the fixture 29, so that the heater for heating the water tank is simply attached to the fixture 29. It can be supported, and a special attachment part for the heater 28B for heating the water supply tank can be eliminated.

[0017]

According to the invention of claim 1, a main body having an opening at the front and forming a refrigerating chamber and a freezing chamber by a partition wall which divides the interior into upper and lower parts is provided, and an ice tray is provided in the freezing chamber. In a refrigerator ice making device in which a water supply tank is installed in a refrigerating chamber and the water supply tank and an ice tray are connected via a partition wall by a pipe with a pump, a holder in which the pipe is built in the partition wall Since I fixed it with the heater,
A heater with a small heat capacity can prevent water supply pipes and water tanks from freezing.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refrigerator showing one embodiment of the present invention.

FIG. 2 is a sectional view of the automatic ice maker of the present invention housed in a freezing compartment.

FIG. 3 is an exploded perspective view showing a water supply tank and an ice tray of the present invention.

FIG. 4 is a perspective view showing a mounted state of the pipe of the present invention.

FIG. 5 is an exploded perspective view showing a mounted state of the pipe of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 6 Partition wall 7 Refrigerator 8 Freezer 21 Ice tray 24 Water tank 25 Pump 26 Piping 27 Holder 28 Heater 28A Pipe heating heater 28B Water tank heating heater

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kiyotaka Nagao 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A main body having an opening at the front and forming a refrigerating chamber and a freezing chamber by a partition wall that divides the interior into upper and lower parts, an ice tray is provided in the freezing chamber, and a water supply tank is provided in the refrigerating chamber. In an ice making device of a refrigerator in which the water supply tank and the ice tray are connected by a pipe with a pump through the partition wall, the pipe is fixed together with a heater by a holder built in the partition wall. An ice making device for a refrigerator, which is characterized in that