JP3291833B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator with an automatic ice making device having an ice tray made detachable.

[0002]

2. Description of the Related Art Conventionally, as this kind of refrigerator with an automatic ice making device, there is one disclosed in Japanese Utility Model Publication No. 57-9661, for example.

In FIG. 6, 31 is a refrigerator main body, 32 is a freezing room formed therein, 33 is an automatic ice making device,
The ice blocks made by the device 33 are stored in an ice storage box (not shown). The automatic ice making device 33 includes an ice tray 34, a driving device 35 for driving the ice tray 34, a frame 36 for connecting the ice tray 34 to the driving device 35, and the like. The frame 36 is generally made of a thin stainless steel plate. Therefore, at the time of ice removal, 40 kgcm to 60 kg transmitted from the driving device 35 to the ice tray 34 to release the ice from the ice tray 34.
It does not have the strength to support cm force. Therefore, the frame 36 is usually fixed to a partition plate 37 constituting the freezing chamber 32 by fitting a mounting hole 36a of the frame 36 with a boss 37a on the partition plate 37 side as shown in the figure. Reference numeral 38 denotes a temperature sensor attached to the back of the ice tray 34 for detecting ice and detecting water supply.

Normally, the automatic ice making device 33 obtains a signal from the temperature sensor 38 and performs an ice removing operation and a water supply operation to the ice tray 34 by operating a pump or the like (not shown).

The temperature sensor 38 is electrically connected to a driving section 33a of the automatic ice making device 33 by a signal line 39 as shown in FIG. Since the temperature sensor 38 performs ice making detection and water supply detection as described above, the state of attachment to the ice tray 34 is firmly determined by a predetermined method at a position confirmed by a test or the like. It is fixed and the user installs it on its own,
The installation method cannot be changed.

[0006]

However, since the above-mentioned conventional refrigerator with an automatic ice making device is constructed as described above, the following problem arises when the ice tray 34 is to be removed for replacement or cleaning. was there.

(1) The ice tray 34 is driven by the driving unit 3 of the automatic ice making device 33 unless the main body of the automatic ice making device 33 is removed.
It could not be reached because it was located behind 3a.

(2) A temperature sensor 38 connected to the signal line 39 is mounted on the back surface of the ice tray 34 as shown in the figure, but this temperature sensor 38 is not structured so that the user can freely attach and detach it. However, even if the main body of the automatic ice making device 33 was removed in the preceding paragraph, the ice making tray 34 could not be removed without permission.

It is an object of the present invention to improve and improve the problems which were not taken into consideration in the above-mentioned conventional example, and to make it easy to attach and detach an ice tray.

[0010]

SUMMARY OF THE INVENTION The present invention is directed to a cooling system having a door.
In a refrigerator equipped with an automatic ice making device in the freezing chamber,
Attached to the door side, ice release operation of the automatic ice making device
A drive shaft of a drive device for providing
Internal hollow pipe and provided inside this internal hollow pipe
Temperature sensor, and an engagement portion one of which is engaged with the drive shaft
And the other has a projection inserted into the bearing of the frame.
And the positional relationship where the temperature can be detected by the temperature sensor.
And an ice tray in which the hollow pipe is arranged so that
And a refrigerator having a bearing portion of the frame positioned on the door side .

Further , the present invention provides the above-mentioned internal hollow pipe,
This is a refrigerator with flexible pipes .

The present invention, by the above configuration, what the user without touching the electric equipment such as temperature sensors to perform ice discovery, easily removed from the automatic ice apparatus ice tray, to allow for cleaning or replacement It is. Of course, for the mounting, only engage the ice tray to the drive shaft, in which a temperature sensor for performing conventional ice-making discovery can be used.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is a perspective view of an essential part in a state where a door of a freezer is opened, and FIG. 2 is a sectional view of an essential part. In the figure,
1 is a refrigerator body, 2 is a freezing room, 3 is a refrigerator room, 4 is a partition, 5 is a door of the freezing room 2, 6 is an automatic ice making device, 7 is an ice storage box for storing ice blocks made by this device 6, Reference numeral 8 denotes a decorative cover, 9 denotes an evaporator, and 10 denotes a fan in the refrigerator. Also, 11
Is a partition plate for separating the ice making room from the freezing room, and 12 is a screw for fixing the decorative cover 8.

As shown in FIG. 3, the automatic ice making device 6 includes an ice tray 13, a driving device 14 for driving the ice tray 13, and a driving device 14.
Guide tray 16 for taking out an ice tray connected to a bearing portion 15 for supporting a shaft of the ice tray 13 fixed on the side opposite to the drive unit.
And a frame 17 provided with. Also,
The guide groove 16 has a shaft fixing protrusion 16a for temporarily fixing the shaft of the ice tray 13. The ice tray 13 is for making water supplied from a water supply pump (not shown) into ice blocks, and is made of a flexible material.

The driving device 14 is a device for inverting and twisting the ice tray 13 and dropping the ice blocks therein into the ice storage box 7.

As shown in FIG. 4, the driving device 14 comprises a driving shaft 19 interlocking with a driving device main body 18 having a motor and the like, a bellows portion 20 connected to the driving shaft 19, and a hollow pipe portion 21. In addition, the drive shaft 19 is formed in a hollow shape, and as shown in FIG.
The structure is such that the temperature sensor 22 is installed in the hollow pipe section 21 through a temperature sensor 22 for detecting water supply.

The driving device 14 of the automatic ice making device 6 is
And the drive shaft 19 is attached with the drive shaft 19 facing the door 5 side.

The ice tray 13 is provided on one side with an engaging portion for engaging the driving shaft 19 of the driving device 14, and the driving shaft 19 having the temperature sensor 22 is engaged.
Form a structure attached to the lower end of the ice tray 13. The shaft on the other side of the ice tray 13 is structured to be supported on the bearing 15 by a shaft fixing projection 16a.

The decorative cover 8 is provided on the ice tray 13 on the side opposite to the driving device.
Of the shaft 17 is prevented from coming off from the bearing portion 15 and frame holding claws 8c, 8d for fixing the frame 17 up and down. With this structure, the screws 12 fixing the decorative cover 8 are removed, the decorative cover 8 is removed, and the ice tray 1 inside the ice making chamber is removed.
After exposing 3, the shaft in front of the ice tray 13 is pulled down and removed from the shaft fixing protrusion 16 a, and then the ice tray 13 is removed from the automatic ice making device 6 by pulling the shaft forward, and cleaning or It can be exchanged. The ice making tray 13 is attached to the ice making tray 13 by inserting the driving shaft 19 into the engagement hole of the ice making tray 13 so that the shaft on the side opposite to the driving device of the ice making tray 13 is formed on the frame 17. This can be easily achieved by fitting it into the bearing portion 15 connected to the guide groove 16 for taking out the dish, temporarily fixing it with the shaft fixing projection 16a, and then attaching the decorative cover 8 which also serves to prevent the ice tray from coming off.

As described above, according to the present invention , the driving device
Since the bearing portion of the frame is located on the door side in the back of the chamber, the ice tray can be easily removed from the driving device, and the ice tray can be cleaned or replaced. Also inside
By installing a temperature sensor inside the hollow pipe ,
Just by engaging the ice tray with the drive shaft, the temperature
The ice making can be detected by the sensor.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a refrigerator with an automatic ice making device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of a refrigerator with an automatic ice making device showing one embodiment of the present invention.

FIG. 3 is a perspective view of an automatic ice making device showing one embodiment of the present invention.

FIG. 4 is a perspective view of a driving device showing one embodiment of the present invention.

FIG. 5 is a sectional view of the automatic ice making device of FIG. 3;

FIG. 6 is a sectional view of a conventional automatic ice making device for a refrigerator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body, 2 ... Freezer room, 3 ... Refrigerator room, 4 ... Partition, 5 ... Door, 6 ... Automatic ice maker, 7 ... Ice storage box, 8 ... Makeup cover, 8a ... Detachment prevention claw, 8b ... Detachment Prevention pawls, 8c: frame retainer pawl, 8d: frame retainer pawl, 9: evaporator, 10: internal fan, 11: partition plate, 1
2 ... screw, 13 ... ice tray, 14 ... drive unit, 15 ... bearing unit, 16 ... guide groove, 16a ... shaft fixing projection, 17 ... frame, 18 ... drive unit body, 19 ... drive shaft, 20 ... bellows , 21 ... hollow pipe, 22 ... temperature sensor.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-115658 (JP, A) Japanese Utility Model Application No. 5-17464 (JP, U) Japanese Utility Model Application No. 5-87472 (JP, U) Japanese Utility Model Application Sho-62 147872 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F25C 1/10

Claims (2)

(57) [Claims] 1. An automatic ice making device is installed in a freezing room having a door.
Installed in the refrigerator facing this door,
The drive shaft of the drive device that gives the ice removal operation of the automatic ice making device
And an internal hollow pipe provided on the drive shaft,
A temperature sensor provided in the hollow pipe,
An engagement portion engaged with the drive shaft and the other being a bearing portion of the frame;
And a projection inserted into the temperature sensor.
The hollow pipe is arranged so as to have a positional relationship in which
Ice tray to be placed, and the bearing of the frame is
Refrigerator located on the door side . 2. The refrigerator according to claim 1, wherein the inner hollow pipe is a flexible pipe .