KR980003389A - Cooling fan linear drive circuit according to the temperature of the refrigerator - Google Patents
Cooling fan linear drive circuit according to the temperature of the refrigerator Download PDFInfo
- Publication number
- KR980003389A KR980003389A KR1019960023065A KR19960023065A KR980003389A KR 980003389 A KR980003389 A KR 980003389A KR 1019960023065 A KR1019960023065 A KR 1019960023065A KR 19960023065 A KR19960023065 A KR 19960023065A KR 980003389 A KR980003389 A KR 980003389A
- Authority
- KR
- South Korea
- Prior art keywords
- cooling fan
- temperature
- output
- refrigerator
- temperature sensing
- Prior art date
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
본 발명은 냉장고의 냉각팬에 인가되는 구동전압을 냉장고의 온도에 따라 가변하여 선형적인 온도제어를 실행할 수 있는 냉장고의 냉각팬 구동회로에 관한 것으로서, 종래의 냉각팬이 운전 온/오프 조건에 의해서만 제어되어 부하온도에 대하여 대응하는 속도가 느리고, 냉각팬은 온 동작시와 냉각팬 오프 동작시의 정도차이가 커지는 문제점을 해결하기 위한 것이다.The present invention relates to a cooling fan driving circuit of a refrigerator capable of performing linear temperature control by varying a driving voltage applied to a cooling fan of a refrigerator according to the temperature of the refrigerator, wherein a conventional cooling fan is operated only by operating on / off conditions. The control speed is slow to respond to the load temperature, the cooling fan is to solve the problem that the degree difference between the on operation and the cooling fan off operation becomes large.
이를 위하여 본 발명은 온도변화에 따른 저항값의 변화로 냉장고 내부의 온도를 감지하기 위한 제1온도 감지 수단 및 제2온도 감지수단; 상기 제1온도 감지수단의 출력으로 냉각팬 온/오프 조건을 판단하여 냉각팬 구동신호를 출력하는 마이크로 프로세서; 상기 마이크로 프로세서의 구동신호를 따라 냉각팬 동작 전류를 제어하는 냉각팬 구동수단; 상기 제2온도 감지수단의 출력을 입력단 전류 제어신호로 사용하여 상기 입력단 전류에 비례하는 출력단 전압을 발생하여 냉각팬으로 인가하는 선형 제어수단; 상기 냉각팬 구동수단의 출력신호에 의해 온되거나 오프되면서 상기 선형 제어수단의 출력전압에 따라 가변적으로 회전되는 직류 냉각팬으로 구성하는 것을 특징으로 한다.To this end, the present invention includes a first temperature sensing means and a second temperature sensing means for sensing the temperature inside the refrigerator by the change of the resistance value according to the temperature change; A microprocessor configured to output a cooling fan driving signal by determining a cooling fan on / off condition using the output of the first temperature sensing unit; Cooling fan driving means for controlling a cooling fan operating current according to a driving signal of the microprocessor; Linear control means for generating an output stage voltage proportional to the input stage current and using the output of the second temperature sensing means as an input stage current control signal to the cooling fan; It characterized in that it is configured as a direct current cooling fan that is turned on or off by the output signal of the cooling fan driving means and is variably rotated according to the output voltage of the linear control means.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제3도는 본 발명의 일 실시예에 따른 냉장고의 온도에 따른 냉각팬 선형 구동회로의 블럭도.3 is a block diagram of a cooling fan linear driving circuit according to a temperature of a refrigerator in accordance with one embodiment of the present invention.
제4도는 본 발명에 따른 냉장고의 고내 온도변화에 따라 온도센서가 갖는 저항값의 변화를 설명하기 위한 온도-저항 그래프.4 is a temperature-resistance graph for explaining the change in the resistance value of the temperature sensor according to the temperature change in the refrigerator of the refrigerator according to the present invention.
제5도는 본 발명에 따른 냉장고의 고내 온도에 따른 온도센서의 저항값과 가변 레귤레이터의 입력전류 및 출력전압값과 냉각팬의 회전수의 변화를 설명하기 위한 참고표.5 is a reference table for explaining the change in the resistance value of the temperature sensor and the input current and output voltage value of the variable regulator and the rotation speed of the cooling fan according to the internal temperature of the refrigerator according to the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960023065A KR980003389A (en) | 1996-06-22 | 1996-06-22 | Cooling fan linear drive circuit according to the temperature of the refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960023065A KR980003389A (en) | 1996-06-22 | 1996-06-22 | Cooling fan linear drive circuit according to the temperature of the refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR980003389A true KR980003389A (en) | 1998-03-30 |
Family
ID=66287548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960023065A KR980003389A (en) | 1996-06-22 | 1996-06-22 | Cooling fan linear drive circuit according to the temperature of the refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR980003389A (en) |
-
1996
- 1996-06-22 KR KR1019960023065A patent/KR980003389A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |