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Refrigerator/freezer ice maker

A technology for a refrigerator and an ice-making tray, which is used in household refrigeration devices, cooling fluid circulation devices, ice-making and other directions, can solve problems such as low transparency, achieve uniform texture, prevent power waste, and optimize the ice-making process.

Inactive Publication Date: 2012-07-04
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In general, the ice produced by the ice maker in the freezer is less transparent

Method used

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  • Refrigerator/freezer ice maker
  • Refrigerator/freezer ice maker
  • Refrigerator/freezer ice maker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The structure of the freezer-refrigerator equipped with the ice making apparatus which concerns on preferred embodiment of this invention is demonstrated based on drawing. figure 1 The shown freezer 1 includes: the uppermost refrigerator compartment 2 with double doors 3L, 3R; the ice-making compartment 4 with the door 5 and the freezer compartment 6 with the door 7 on the lower floor; The pull-out freezer compartment 8; and the pull-out vegetable compartment 9 on the lowermost floor. Cold air is generated by a refrigeration cycle system (not shown) including a compressor and a heat exchanger, and the cold air is distributed to each chamber through pipes, and a desired refrigeration temperature or freezing temperature is obtained in each chamber. Since this structure is well known, it will not be described in detail.

[0063] The top of the ice-making compartment 4 is provided with figure 2 and image 3 The ice making device 10 is shown. Also refer below Figure 4...

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PUM

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Abstract

Disclosed is an ice maker (10) that is disposed in the ice making chamber (4) of a refrigerator / freezer (1). The ice maker comprises an ice tray (20) that makes ice by means of cold air that is sucked into the ice making chamber, a thermistor (25) that measures the temperature within the ice tray, a heater (31) that heats the ice tray from below, and a control unit (50) that controls the operation of a freezing cycle and the passage of electric current to the heater using the temperature measured by the thermistor as a criteria. The control unit performs a freezing preparation step in which, after water has been supplied to the ice tray, a "preheating" electric current is passed to the heater until the temperature measured by the thermistor falls below freezing; an ice melting step in which, after the temperature measured by the thermistor has fallen below freezing, a "rapid heating" electric current is passed to the heater for a given period of time only; and a freezing progression step in which a "normal heating" electric current is passed to the heater until the temperature measured by the thermistor falls to a prescribed temperature.

Description

technical field [0001] The invention relates to an ice making device for a freezer. Background technique [0002] A freezer-refrigerator generally has an ice making device that makes ice using cold air for freezing. For examples of ice making devices installed in freezers and refrigerators, patent documents 1 to 7 can be referred to. [0003] Generally, the ice produced by the ice making device of the freezer has low transparency. So there have been attempts to increase the transparency of the ice. Such studies have also been conducted on the ice making devices described in Patent Documents 1 to 7. [0004] In the ice making devices described in Patent Documents 1 and 2, a heater is provided above the ice tray to make the upper part of the ice tray warmer than the lower part, and ice is sequentially produced upward from the lower part inside the ice tray. As a result, air in the water can easily flow out from above during ice formation, and transparent ice that does not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25C1/18F25C1/10F25C1/24F25D11/02
CPCF25C2600/04F25D2317/061F25C5/06F25B2600/0251F25C2700/02F25C1/04F25C2400/10F25C1/18F25C2600/02F25C2700/12F25C5/08F25D2323/021F25B2600/112F25C2305/022F25B2500/31
Inventor 森下高丽雄八木裕
Owner SHARP KK
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