KR20100138373A

KR20100138373A - Ice maker for refrigerator

Info

Publication number: KR20100138373A
Application number: KR1020090056883A
Authority: KR
Inventors: 이정완
Original assignee: 주식회사 대우일렉트로닉스
Priority date: 2009-06-25
Filing date: 2009-06-25
Publication date: 2010-12-31

Abstract

PURPOSE: An ice maker for a refrigerator is provided to define the adequate position of bimetal and assembly the bimetal at the adequate position by forming an insertion groove and using a fixing pin. CONSTITUTION: An ice maker for a refrigerator includes a tray(100), a water supplying unit, a driving unit, an ice separating lever, an ice separating heater(300), an insertion groove(320), an insertion recess(327), and a bimetal(310). Water is supplied to the tray through the water supplying unit in order to make ices. The driving unit faces the water supplying unit. The ice separating lever is rotatably assembled between the driving unit and the water supplying unit. A motor equipped in the driving unit rotates the ice separating lever. The ice separating heater applies heat to the tray in order to separate ices from the tray. The bimetal blocks power of the ice separating heater at pre-set temperature.

Description

ICE MAKER FOR REFRIGERATOR}

The present invention relates to a refrigerator ice maker, and more particularly, to prevent the detachment of bimetal and at the same time select and assemble the correct position, the refrigerator ice maker is improved.

In general, the refrigerator cools or stores the food stored therein for a long time without deterioration by cooling the air in the refrigerator using a cooling cycle.

The refrigerator includes a main body forming a storage space separated into a refrigerating compartment and a freezing compartment, and a door mounted on one side of the main body to open and close the refrigerating compartment and the freezing compartment. The main body of the refrigerator includes a compressor, a condenser, an evaporator, and the like. Mechanisms for forming the cycle are provided.

In addition, an ice maker may be installed in the freezer compartment, and an example of such an ice maker has been disclosed in the following Document 1 (hereinafter, referred to as 'prior art').

1 and 2, the ice maker of the prior art is mounted on the inner upper portion of the freezer compartment (F), the ice maker (8) for ice water supplied to the cold in the freezer compartment (F), and the ice maker (8) Ice bank 9 mounted inside the freezer compartment F so that the ice deiced in the ice is iced and dispenser 10 mounted on the freezer compartment door to take out ice without opening or closing the freezer compartment door 4. ) And an ice chute 11 for guiding the ice contained in the ice bank 9 to fall into the dispenser 10.

The ice maker 8 includes a tray 12 made of aluminum for containing water for ice making and making ice of a predetermined shape, a water supply unit 14 for supplying water to the tray 12, and the tray 12. ), An ice lever 16 to ice the ice iced in the ice sheet, a slider 20 provided to allow the ice iced by the ice lever 16 to fall into the ice bank 9, and the water supply unit 14. In addition to controlling the water supply to the control unit 22 for controlling the moving lever 16.

In addition, the moving lever 16 is formed such that its axis 16a crosses the center upper side of the tray 12, and a plurality of pins 16b protruding ice toward the side of the axis 16a protrude. Is formed.

And, although not shown, an ice heater (not shown) is mounted to the lower end of the tray 12 to heat the ice iced from the tray 12 to easily separate through the ice lever 16.

On the other hand, the ice maker 8 is preferably provided with a bimetal (not shown) as a temperature sensor as a safety device for preventing overheating of the ice heater by the abnormal signal.

[Patent 1] Publication No. 10-2006-0007245 No. 2006.01.26

However, since the refrigerator ice maker of the related art having the above configuration does not have a structure for fixing the bimetal, there is a problem of inferior assembly ability due to frequent detachment of the bimetal.

The present invention has been made to solve the above-mentioned conventional problems, the object of the present invention is to prevent the detachment of the bimetal to cut off the power when overheating the ice heater and at the same time select the correct position to assemble the assembly An improved ice maker for a refrigerator is provided.

Refrigerator ice maker of the present invention for achieving the above object, the tray containing water to make ice in a predetermined shape; A water supply unit installed at one side of the tray to supply water to the tray; A drive unit disposed to face the water supply unit with the tray interposed therebetween; An moving lever rotatably assembled between the driving unit and the water supply unit and rotated by a motor embedded in the driving unit; An ice sheet heater for applying heat to separate ice from the tray; An insertion groove formed to be adjacent to the ice heater; A fitting groove formed at one side of the insertion groove; And a bimetal that is inserted into the insertion groove and cuts off the power of the ice heater at a predetermined temperature.

In addition, the insertion groove is preferably formed with a fixing pin to prevent the separation of the bimetal.

The insertion groove may be formed on one surface of the driving unit facing the water supply unit.

On the other hand, the bimetal is preferably connected to the ebbing heater by a plurality of lead wires, the fixing pin is preferably located between the plurality of lead wires.

According to the ice maker for a refrigerator according to the present invention, since the insertion groove and the fixing pin prevents the detachment of the bimetal that cuts off the power when the ice heater is overheated, the correct position is selected and assembled, thereby improving assembly performance. .

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view showing an ice maker for a refrigerator according to the present invention, Figure 4 is a side sectional view schematically showing an ice maker for a refrigerator according to the present invention, Figure 5 is a side sectional view showing the operation of Figure 3, Figure 6 is a side view showing a state viewed from the driving unit 'aa' direction according to the present invention.

As shown in FIGS. 3 to 6, the refrigerator ice maker A according to the present invention includes a tray 100 which contains water and makes ice in a predetermined shape, and is provided on one side of the tray 100. Water supply unit 130 for supplying water to the 100, the drive unit 140 is installed to face the water supply unit 130 with the tray 100 therebetween and between the drive unit 140 and the water supply unit 130 It is composed of a roving lever 110 is rotatably assembled to rotate by a motor built in the drive unit (140).

In addition, a plurality of pins 111 for pushing ice from the tray 100 are integrally formed on the ice lever 110.

And, the lower portion of the tray 100 is provided with an ice storage unit 150 for storing iced ice.

Here, the plurality of pins 111 formed on the moving lever 110 are formed at intervals corresponding to the respective compartments of the tray 100 along the longitudinal direction of the moving lever 110.

In addition, a cover 160 that covers an upper portion of the tray 100 and guides the movement of the iced ice to the ice storage unit 150 is provided on one side of the ice lever 110.

In this case, a groove 161 is formed in the cover 160 so that the pin 111 may pass while rotating.

On the other hand, the refrigerator ice maker (A) of the present invention can be additionally installed on the ice lever 200 to check the amount of ice stored in the ice storage unit 150 to operate or stop the ice maker (A).

As shown in FIG. 4, according to the ice lever 200, an ice lever cam 120 is formed to rotate together with the ice lever 110 on one side of the ice lever 110 on the water supply unit 130. As the cam rotates, the ice lever 200 has a predetermined radius of rotation.

Accordingly, when the water is filled in the tray 100 by the water supply unit 130, and when it is detected that ice is formed after a predetermined time, the bottom surface of the tray 100 is heated by an ice heater 300, which will be described later, to ice the ice. Surface is separated from the tray.

In addition, when the moving lever 110 rotates by the driving unit 140, the pin 111 formed on the moving lever 110 pushes out ice, and finally the separated ice slides along the surface of the cover 160. The ice storage unit 150 is lowered.

Then, as the ice lever 110 rotates, the ice lever cam 120 rotates, and the ice lever 200 moves upward by a predetermined radius of rotation (see FIG. 4).

At this time, if the ice is in contact with the end of the rotating ice cube 200 is not lowered anymore, the separate sensor (not shown) installed in the drive unit 140, etc. detects this operation of the ice maker (A) To stop.

Meanwhile, an ice heater 300 is further provided at a lower end of the tray 100, and the ice contacting the tray 100 is partially melted by heating the ice heater 300, and thus the ice tray ( Easily separated).

In addition, the tray 100 is preferably formed of aluminum so that heat of the ebbing heater 300 is easily transferred.

In addition, a bimetal 310 is further provided to cut off the power at a predetermined temperature in order to prevent a safety accident due to the heating of the ice heater 300.

Looking at the installation structure of the bimetal 310, the insertion groove 320 and the insertion groove 320 of the bimetal 310 is formed adjacent to the ebbing heater 300 is inserted into the insertion groove 320 It is composed of a fixing pin 321 to prevent departure.

In addition, the fitting groove 327 is formed at one side of the insertion groove 320 to facilitate insertion of the bimetal 310 into the insertion groove 320.

Meanwhile, the insertion groove 320 and the fixing pin 321 are formed on one surface of the driving unit 140 facing the water supply unit 130 and are in contact with the tray 100.

In addition, the bimetal 310 is connected to the moving heater 300 by a plurality of lead wires 311, and the fixing pin 321 is positioned between the plurality of lead wires 311 to further layer the bimetal 310. Support stably.

Therefore, as shown in FIG. 6, the up and down movement of the bimetal 310 is prevented by the insertion hop 320, and the left and right movement of the bimetal 310 is prevented by the fixing pin 321. Will be.

As a result, the insertion groove 320 and the fixing pin 321 prevents the detachment of the bimetal 310 and at the same time selects and assembles the correct position, thereby improving assembly performance.

1 is a perspective view showing a conventional refrigerator.

2 is a perspective view showing a conventional ice maker for a refrigerator.

3 is a perspective view showing an ice maker for a refrigerator according to the present invention.

Figure 4 is a side cross-sectional view schematically showing an ice maker for a refrigerator according to the present invention.

5 is a side cross-sectional view showing the operation of FIG.

Figure 6 is a side view showing a state viewed from the driving unit 'a-a' direction according to the present invention.

* Description of symbols on main parts of the drawings *

A-Ice Makers for Refrigerators 100-Trays

200-Ice Lever 300-Ice Heater

310-bimetal 320-insert groove

Claims

A tray containing water to make ice into a certain shape;

A water supply unit installed at one side of the tray to supply water to the tray;

A drive unit disposed to face the water supply unit with the tray interposed therebetween;

An moving lever rotatably assembled between the driving unit and the water supply unit and rotated by a motor embedded in the driving unit;

An ice sheet heater for applying heat to separate ice from the tray;

An insertion groove formed to be adjacent to the ice heater;

A fitting groove formed at one side of the insertion groove; And

A bimetal that is inserted into the insertion groove and cuts off the power of the moving heater at a predetermined temperature;

Refrigerator ice maker comprising a.

The method of claim 1,

Refrigerator ice maker, characterized in that the fixing groove is formed in the insertion groove to prevent the separation of the bimetal.

3. The method of claim 2,

The insertion groove is a refrigerator ice maker, characterized in that formed on one surface facing the water supply.

The method of claim 3, wherein

And the bimetal is connected to the ice heater by a plurality of lead wires, and the fixing pin is positioned between the plurality of lead wires.