KR900005997Y1 - Fan lick sensing circuit for refrigerator - Google Patents

Fan lick sensing circuit for refrigerator Download PDF

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Publication number
KR900005997Y1
KR900005997Y1 KR2019870018695U KR870018695U KR900005997Y1 KR 900005997 Y1 KR900005997 Y1 KR 900005997Y1 KR 2019870018695 U KR2019870018695 U KR 2019870018695U KR 870018695 U KR870018695 U KR 870018695U KR 900005997 Y1 KR900005997 Y1 KR 900005997Y1
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South Korea
Prior art keywords
fan
terminal
led
refrigerator
compressor
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KR2019870018695U
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Korean (ko)
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KR890009213U (en
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이종욱
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주식회사 금성사
최근선
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Publication of KR900005997Y1 publication Critical patent/KR900005997Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/006—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • F25D27/005—Lighting arrangements combined with control means

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

내용 없음.No content.

Description

냉장고의 팬 로크 감지회로Fan lock detection circuit of the refrigerator

제1도는 본고안의 회로도.1 is a circuit diagram of this article.

제2도는 본고안의 플로우 챠트.2 is a flowchart of this article.

제3도는 본고안의 팬 로크 상태의 조건을 나타낸 도표.3 is a chart showing the conditions of the fan lock state in this article.

제4도는 본고안의 온도 제어부를 나타낸 회로도.4 is a circuit diagram showing a temperature control unit of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

IC1: 제어부 IC2, IC3: 비교기IC 1 : control unit IC 2 , IC 3 : comparator

SW1, SW2: 리드 스위치 F : 팬SW 1 , SW 2 : Reed switch F: Fan

C : 압축기 LED1, LED2: 표시용 엘이디C: Compressor LED 1 , LED 2 : Display LED

R1∼R12: 저항 TH1, TH2: 더어미스터R 1 to R 12 : resistance TH 1 , TH 2 : thermistor

Q1: 트랜지스터 TA : 트라이악Q 1 : Transistor TA: Triac

10 : 팬 로크 감지부 20 : 압축기 구동부10: fan lock detection unit 20: compressor driving unit

본고안은 냉장고의 팬 로크(FAN LOCK)감지회로에 관한 것으로, 특히 압축기 작동시 팬이 로크될 경우에 이를 감지하여 알려주므로 팬 모우터의 과발열로 인한 팬 모우터 커버나 냉장고 내부 케이스의 손상을 방지함은 물론 압축기의 연속 운전으로 인한 소비 전력의 낭비를 방지할 수 있도록 한것이다.This issue relates to the fan lock detection circuit of the refrigerator. Especially, when the fan is locked when the compressor is operating, it detects and informs of the fan lock. Therefore, the fan motor cover or the case inside the refrigerator may be damaged due to the overheating of the fan motor. In addition to preventing the waste of power consumption due to the continuous operation of the compressor.

종래에는 압축기가 작동중일매 팬이 로크되면 팬 모우터가 과열도어 팬 모우터의 커버 및 냉장고의 내부케이스가 녹거나 타서 손상되었고 팬이 로크되므로 고내 온도가 안정되지 않을뿐만 아니라 압축기가 연속 운전되므로 소비 전력이 상승되는 결점이 있었다.Conventionally, if the fan is locked while the compressor is operating, the fan motor is damaged due to melting or burning of the cover of the overheat door fan motor and the inner case of the refrigerator, and the fan is locked so that the temperature inside the compressor is not stable and the compressor is continuously operated. There was a drawback of increased power consumption.

본고안은 이와같은 종래의 결점을 감안하여 안출한 것으로 압축기 작동시 팬이 로크될 경우에 이를 감지하여 엘이디로 표시해 주므로 사용자가 사전에 파악하여 대퍼할 수 있도록 한것인바, 이를 첨부된 도면 제1도 내지 제4도에 의하여 상세히 설명하면 다음과 같다.This proposal was devised in view of the above-mentioned drawbacks of the present invention. When the fan is locked during the operation of the compressor, it detects this and displays it as an LED, so that the user can grasp it in advance and can do it. If it described in detail with reference to Figure 4 as follows.

제어부(IC1)의 단자(1)에 리드 스위치(SW1)(SW2)를 직렬 접속하고 단자(2)에는 저항(R1∼R3), 더어미스터(TH1), 비교기(IC2)로 된 팬 로크 감지부(10)를 접속하며 단자(3)에 팬 로크표시용 엘이디(LED2)를 접속하고 단자(4)에는 저항(R6∼R8), 트랜지스터(Q1), 트라이악(TA)으로 된 압축기 구동부(20)를 접속하여 트랜지스터(Q,)의 콜렉터와 저항(R7)사이에 단자(5)와 접속된 압축기 구동 표시용 엘이디(LED1)를 접속하여서 된것으로 도면중 미설명 부호 F는 팬, C는 압축기, L은 램프, SW3와 SW4는 냉장고의 상, 하실 도어 스위치, C1은 콘덴서, VDD는 직류전원, AC는 교류 전원이며 여기서 리드 스위치 SW1, SW2는 냉장고의 상, 하실 도어개폐 감지 스위치이다.Reed switch SW 1 (SW 2 ) is connected in series to terminal 1 of control unit IC 1 , and resistors R 1 to R 3 , thermistors TH 1 , and comparator IC 2 are connected to terminal 2 in series. Fan lock detection unit 10 is connected, and a fan lock display LED (LED 2 ) is connected to the terminal 3, and the resistors (R 6 to R 8 ), transistors (Q 1 ), Compressor drive unit 20 made of triac TA is connected to compressor drive display LED 1 connected to terminal 5 between collector of transistor Q and resistor R 7 . In the drawings, reference numeral F denotes a fan, C denotes a compressor, L denotes a lamp, SW 3 and SW 4 denote a refrigerator, a door switch, C 1 denotes a condenser, V DD denotes a DC power supply, and AC denotes an AC power supply. Switches SW 1 and SW 2 are door open / close detection switches of the refrigerator.

이와같이 구성된 본고안 냉장고의 상,하 도어가 닫히면 리드 스위치(SW1)(SW2)가 온되어 접지되므로 제어부(IC1)의 단자(1)에 로우레벨이 인가되며, 만약 단자(4)에 하이레벨이 인가될 경우 에는 트랜지스터(Q1)가 온됨과 동시에 트라이악(TA)의 게이트 단자에 전류가 흘러 트라이악(TA)이 온되고, 이에 따라 압축기(C)가 구동됨과함께 팬(F)이 구동되며 이때, 압축기 구동표시용엘이디(LED1)가 온되어 압축기(C)가 구동중임을 나타내게 되고 단자(5)에는 로우레벨이 인가되게 된다.When the upper and lower doors of the refrigerator according to the present invention configured as described above are closed and the reed switch SW 1 (SW 2 ) is turned on, the low level is applied to the terminal 1 of the control unit IC 1 . When a high level is applied, the transistor Q 1 is turned on and current flows through the gate terminal of the triac TA to turn on the triac TA, thereby driving the compressor C and the fan F. At this time, the compressor driving display LED (LED 1 ) is turned on to indicate that the compressor (C) is driving and a low level is applied to the terminal (5).

또한 팬 로크 감지부(10)는 팬(F)이 로크되지 않았을때는 더어미스터(TH1)의 저항이 커져 비교기(IC2)의 반전단자(-)전압이 비반전단자(+)전압보다 높아 비교기(IC2)의 출력단으로 로우레벨이 출력되며, 팬(F)이 로크되었을 경우에는 더어미스터(TH1)의 저항이 작아져 비교기(IC2)의 비반전단자(+)전압이 반전단자(-)전압보다 높아 비교기(IC2)의 출력단에서 하이레벨이 출력되고, 이에 따라 제어부(IC1)의 단자(2)에 하이레벨이 입력된다.In addition, when the fan F is not locked, the fan lock detection unit 10 has a larger resistance of the thermistor TH 1 so that the inverting terminal voltage (-) of the comparator IC 2 is higher than the non-inverting terminal voltage (+). The low level is output to the output terminal of the comparator (IC 2 ). When the fan (F) is locked, the resistance of the thermistor (TH 1 ) decreases, so that the non-inverting terminal (+) voltage of the comparator (IC 2 ) is inverted. The high level is output from the output terminal of the comparator IC 2 higher than the negative voltage, and thus the high level is input to the terminal 2 of the control unit IC 1 .

이와같이 제어부(IC1)에서는 단자(1)와 단자(5)가 로우레벨이고 동시에 단자(2)가 하이레벨일 경우에만 제어부(IC1)의 단자(3)에 로우레벨이 인가되어 팬(F)이 로크임을 알려주는 엘이디(LED2)가 온되게 되는것이다In this way, in the control unit IC 1 , the low level is applied to the terminal 3 of the control unit IC 1 only when the terminal 1 and the terminal 5 are at the low level and the terminal 2 is at the high level. ) indicating that the lock is to be presented the LED (LED 2) on

그러나, 제어부(IC1)의 단자(1)(2)(5)중에서 하나의 단자라도 전술한 경우와 레벨이 다르면 단자(3)에 하이레벨이 인가되어 엘이디(LED2)가 오프되고 이에 따라 팬(F)이 로크되지 않음을 알려주게 되는데 이러한 관가 제2도에서 플로우 챠트로 나타나 있다.However, if any one of the terminals (1) (2) (5) of the control unit (IC 1 ) has a different level than the above-described case, a high level is applied to the terminal (3) so that the LED (LED 2 ) is turned off and accordingly It is indicated that the fan F is not locked, which is shown in the flow chart in FIG.

제4도는 상기 플로우 챠트에서 제어부(IC1)의 온도검출 단자(6)에 입력되는 온도상태를 나타낸 회로도로온도가 상승되어 더어미스터(TH2)의 특성에 따라 저항이 작아질 경우에만 비반전단자(+)의 전압이 반전단자(-)의 전압보다 높아져 비교기(IC3)의 출력단으로 하이레벨이 출력되어 제어부(IC1)의 온도검출단자(6)에 하이레벨이 입력되므로 압축기(C)를 구동시킬 수가 있는 것이다.FIG. 4 is a circuit diagram showing a temperature state input to the temperature detection terminal 6 of the controller IC 1 in the flowchart. Non-inverting only when the temperature is increased to decrease the resistance according to the characteristics of the thermistor TH 2 . Since the voltage at the terminal (+) is higher than the voltage at the inverting terminal (-), a high level is output to the output terminal of the comparator IC 3 , and a high level is input to the temperature detection terminal 6 of the controller IC 1 . ) Can be driven.

이상에서 설명한 바와같이 본고안은 압축기(C)구동시 팬(F)이 로크될 경우에 제어부(IC1)에서 이를 감지하여 엘이디(LED2)로 표시해 주므로 사용자가 이를 파악하여 사전에 대처할 수 있어 팬 모우터의 과열로 인한 팬 모우터의 커버 및 냉장고 내부 케이스의 손상을 방지할 수 있음을 물론 고내 온도를 안정시킬 수 있고 압축기의 연속 운전으로 소비전력이 상승되는 것을 방지할 수 있는 효과가 있다.As described above, in this case, when the fan (F) is locked when the compressor (C) is driven, the control unit (IC 1 ) detects this and displays it as the LED (LED 2 ). In addition to preventing damage to the cover of the fan motor and the case inside the refrigerator due to the overheating of the fan motor, the internal temperature can be stabilized and the power consumption can be prevented from rising due to the continuous operation of the compressor. .

Claims (1)

제어부(IC1)의 단자(1)에 리드 스위치(SW1)(SW2)를 직렬 접속하고 단자(2)에는 팬 로크 감지부(10)를 접속하며 단자(3)에 팬 로크 표시용 엘이디(LED2)를 접속하고 단자(4)에는 압축기 구동부(20)를 접속하여 트랜지스터(Q1)의 콜렉터와 저항(R7)사이에 단자(5)와 접속된 압축기 구동 표시용 엘이디(LED1)를 접속하여서 됨을 특징으로 하는 냉장고의 팬 로크 감지회로.The reed switch SW 1 (SW 2 ) is connected in series to the terminal 1 of the control unit IC 1 , and the fan lock detection unit 10 is connected to the terminal 2, and the fan lock display LED is connected to the terminal 3. (LED 2) for connection to terminals 4, the compressor driving unit 20 for connection to the transistor collector and the resistance of the (Q 1) (R 7) to the terminal (5) the LED for the compressor driving display connected to the (LED 1 between Fan lock detection circuit of the refrigerator, characterized in that the connection.
KR2019870018695U 1987-10-31 1987-10-31 Fan lick sensing circuit for refrigerator KR900005997Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870018695U KR900005997Y1 (en) 1987-10-31 1987-10-31 Fan lick sensing circuit for refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870018695U KR900005997Y1 (en) 1987-10-31 1987-10-31 Fan lick sensing circuit for refrigerator

Publications (2)

Publication Number Publication Date
KR890009213U KR890009213U (en) 1989-05-30
KR900005997Y1 true KR900005997Y1 (en) 1990-06-30

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Application Number Title Priority Date Filing Date
KR2019870018695U KR900005997Y1 (en) 1987-10-31 1987-10-31 Fan lick sensing circuit for refrigerator

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