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Air curtain fan driving device and method for refrigerator

A driving device and air curtain technology, which can be used in household refrigeration devices, cooling fluid circulation devices, applications, etc., and can solve problems such as large power consumption

Inactive Publication Date: 2003-11-26
DAEWOO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the refrigerator door is opened, the air curtain fan can prevent the cooling air from flowing out, but the power consumption is too large

Method used

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  • Air curtain fan driving device and method for refrigerator
  • Air curtain fan driving device and method for refrigerator
  • Air curtain fan driving device and method for refrigerator

Examples

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Effect test

no. 1 example

[0024] The air curtain fan driving device 30 for a refrigerator according to the first embodiment of the present invention is as image 3 shown.

[0025] The device 30 includes a temperature setting part 302, a door opening / closing detection part 304, a first temperature detection part 306, a second temperature detection part 308, a cooling fan driving part 310, an air curtain fan driving part 312, a cooling fan 314, an air curtain Fan 316, and control unit 300.

[0026]The user uses the temperature setting part 302 to set a reference temperature Tr for controlling the temperature T1 inside the refrigerating chamber. The door open / close detection part 304 detects whether the door of the refrigerator is opened or closed by using a switching circuit. The first temperature detection part 306 detects the internal temperature T1 of the refrigerator compartment. The second temperature detection part 308 detects the external temperature T0 around the refrigerator compartment. The...

no. 2 example

[0041] image 3 Shown in a block diagram is an air curtain fan driving device 30 for a refrigerator according to a second embodiment of the present invention. The structure of the second embodiment is the same as that of the first embodiment. However, the first embodiment divides the external temperature T0 of the refrigerator compartment measured by the second temperature detection unit 308 into several temperature ranges, while the second embodiment divides the temperature difference between the external temperature T0 and the internal temperature T1 ( T0-T1) is divided into several ranges, wherein the external temperature T0 of the refrigerator compartment is measured by the second temperature detection component 308 , and the internal temperature T1 of the refrigerator compartment is measured by the first temperature detection component 306 . For example, the temperature difference (T0-T1) is divided into T4 (T0-T1<15°C), T5 (15°C≤T0-T1≤25°C), and T6 (25°C≤T0-T1). In ord...

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Abstract

A temperature setting part (300) sets a reference temperature of the interior of a refrigerating compartment of a refrigerator. A door opening / closing detection part (304) detects opening and closing of a door of the refrigerating compartment. First and second temperature detecting parts (306, 308) detect the interior and exterior temperatures of the refrigerating compartment respectively. An air curtain fan driving part (312) drives an air curtain fan. A control part (300) performs a normal cooling operation to control the interior temperature of the refrigerating compartment by driving the cooling fan (314) when the interior temperature is under a reference temperature, drives the air curtain fan (316) with each of the numbers of rotations corresponding to each of several temperature ranges, and performs the normal cooling operation by stopping the driving of the air curtain fan if the closing of the door of the refrigerating compartment is detected. Cooling efficiency and electric power efficiency are enhanced by efficiently driving the air curtain fan (316) according to the interior and exterior conditions of the refrigerating compartment.

Description

technical field [0001] The present invention relates to a refrigerator, in particular to an air curtain fan driving device and method for driving an air curtain fan according to internal and external conditions of the refrigerator. Background technique [0002] First look at the cycle process of refrigerant in the refrigerator. When the high-temperature and high-pressure gaseous refrigerant generated by the compressor passes through the condenser, the gaseous refrigerant transfers its heat to the outside and is converted into liquid refrigerant at the same time. Thereafter, the high-pressure liquid refrigerant passes through the drier, and the drier removes impurities and moisture from the liquid refrigerant, and the liquid refrigerant without impurities and moisture flows into the capillary. The liquid refrigerant flowing through the capillary expands into a gas-liquid mixed state that is easily evaporated, and thus absorbs heat from the surroundings to return the refrigera...

Claims

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Application Information

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IPC IPC(8): F25D17/06F25D23/02F25D29/00
CPCF25D23/023F25D17/062F25D29/00F25D2700/02
Inventor 郑宰旭崔炳俊
Owner DAEWOO ELECTRONICS CO LTD
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