KR910007508Y1 - Defrost heater control circuit of refrigerator - Google Patents

Defrost heater control circuit of refrigerator Download PDF

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Publication number
KR910007508Y1
KR910007508Y1 KR2019890021209U KR890021209U KR910007508Y1 KR 910007508 Y1 KR910007508 Y1 KR 910007508Y1 KR 2019890021209 U KR2019890021209 U KR 2019890021209U KR 890021209 U KR890021209 U KR 890021209U KR 910007508 Y1 KR910007508 Y1 KR 910007508Y1
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KR
South Korea
Prior art keywords
defrost
heater
refrigerator
circuit
heat
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KR2019890021209U
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Korean (ko)
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KR910012185U (en
Inventor
황봉수
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주식회사 금성사
이헌조
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Priority to KR2019890021209U priority Critical patent/KR910007508Y1/en
Publication of KR910012185U publication Critical patent/KR910012185U/en
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Publication of KR910007508Y1 publication Critical patent/KR910007508Y1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002Defroster control
    • F25D21/006Defroster control with electronic control circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002Defroster control
    • F25D21/008Defroster control by timer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • F25D21/08Removing frost by electric heating

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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)
  • Defrosting Systems (AREA)

Abstract

내용 없음.No content.

Description

냉장고 제상히터의 순차적 통전회로Sequential energization circuit of refrigerator defrost heater

제1도는 종래의 제상히터의 회로도.1 is a circuit diagram of a conventional defrost heater.

제2도는 제상작동시의 회로 설명도.2 is an explanatory diagram of a circuit during defrost operation.

제3도는 본 고안에 따른 제상힐의 정상작동시 회로도.3 is a circuit diagram of the normal operation of the defrost hill according to the present invention.

제4도는 본 고안에 따른 제상히터의 L-코드 통전시 회로도.4 is a circuit diagram of the L-code energization of the defrost heater according to the present invention.

제5도는 본 고안에 따른 제상히터의 플레이트 통전시 회로도.5 is a circuit diagram of the plate energization of the defrost heater according to the present invention.

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

41 : 전원장치 42 : 변압기41: power supply 42: transformer

43 : 도어스위치 44 : 팬모타43: door switch 44: fan motor

45 : 도어스위치 46 : 램프45: door switch 46: lamp

47 : 제상타이머 48 : 냉동실온도조절기47: defrost timer 48: freezer compartment temperature controller

49, 49' : 제상조절기1, 2 50 : 히트 플레이트 T/E49, 49 ': Defrost regulator 1, 2 50: Heat plate T / E

51 : 히터코드-L 52 : 퓨즈51: heater cord-L 52: fuse

53 : PTC스타터 54 : 압축기53: PTC starter 54: compressor

55 : 과부하보호장치55: overload protection device

본 고안은 냉장고의 제상히터를 순차적으로 통하는 것으로 특히 저장식품에 대한 제상히터의 순간적인 열영향을 최소화하기 위한 냉장고의 제상히터의 순차적 통전회로에 관한 것이다.The present invention sequentially passes through the defrost heater of the refrigerator, and more particularly relates to a sequential energization circuit of the defrost heater of the refrigerator for minimizing the instantaneous heat effect of the defrost heater for the stored food.

종래에는 냉장공의 제상회로는 제1도에 도시한 바와같이 2개의 제상히터를 가지고 있는데 L-코드 히터는 증발기에 붙은 서리를 제거하기 위한 히터이고 증발기에서 L-코드히터에 의해 떨어진 잔빙을 녹이는 히터 플레이트로 구성되어 두 개가 동시에 충전이 되어 제상이 되기 때문에 두개의 히터에 의한 많은 열량이 동시에 나와 저장식품의 온도를 오히려 상승시켜 음식을 상하게 하는 것이었다.Conventionally, the defrost circuit of the refrigerating hole has two defrost heaters as shown in FIG. It is composed of a heater plate and the two are simultaneously charged to defrost, so a large amount of heat by the two heaters came out at the same time to increase the temperature of the stored food to spoil the food.

제1도에 도시된 종래의 제상회로는 제상타이머(47)의 접점이 3∼4에 연결되어 있을때는 정상 냉동싸이클로 작동하다가 일정시간이 경과하면 제상타이머(47)가 제2도와 같이 2∼3으로 연결되어 압축기는 정지하고 히터 L코드(51)과 히터플레이트(50)에 동시에 통전되어 동시에 제상이 실행된다.In the conventional defrost circuit shown in FIG. The compressor is stopped and energized by the heater L code 51 and the heater plate 50 at the same time to perform defrosting at the same time.

이때 제상타이머(47)에는 통전이 되지않아 제상타이머의 작동을 중지한다. 증발기의 온도가 일정하게 상승하면 제상조절기(49)의 바이메탈이 떨어지고 종료된다. 이후 접점은 3∼2에 연결되어 있으나 제상조절기(49)의 회로가 떨어진 상태이므로 회로는 접점3∼1에 통전되어 타이머(47)가 작동 6∼10분정도 휴지시간을 가진다음 접점3∼4로 복귀되어 제1도와 같은 정상냉동싸이클로 작동하게 된다.At this time, the defrost timer 47 is not energized to stop the operation of the defrost timer. If the temperature of the evaporator rises constantly, the bimetal of the defrost controller 49 falls and ends. Thereafter, the contacts are connected to 3 to 2, but since the circuit of the defrost regulator 49 is separated, the circuit is energized to the contacts 3 to 1 so that the timer 47 operates and has a rest time of about 6 to 10 minutes. It returns to and operates in the normal refrigeration cycle as shown in FIG.

회로가 휴지시간을 가지는 이유는 제상이 완료되어도 증발기의 표면에는 제상수행중에 생성된 많은 물방울이 맺혀있게 되고 만약 제상이 완료된후 바로 냉동작동을 수행하면 증발기에 맺혀있는 물방울은 바로 서리가 되어 증발기에 부착되어 냉각성능을 저하시키므로 물방울이 자연 중력에 의해 최대한 낙하된 후에 냉동사이클을 수행하도록 6∼10분간의 휴지시간을 가진다.The reason why the circuit has a rest time is that even after the defrost is completed, many droplets generated during defrosting are condensed on the surface of the evaporator. Since it is attached to reduce the cooling performance, the water droplet has a downtime of 6 to 10 minutes to perform the refrigeration cycle after falling as much as possible by natural gravity.

따라서 종래의 제상회로는 2개의 제상장치에 동시에 통전되어 제상시 많은 발열량을 내게되어 저장음식물에 나쁜영향을 주게 되는 것이다.Therefore, the conventional defrost circuit is energized by two defrosting devices at the same time to give a large amount of heat during defrosting will adversely affect the stored food.

본 고안은 냉장고에 있어서 2개의 제상장치를 순차적으로 통전시켜서 2개의 제상장치가 동시에 통전될때의 발열량을 분산시켜 저장물에 미치는 열의 나쁜 효과를 분산시키는 것으로 제3도와 같이 정상 작동회로시 접점 3은 접점 4에 연결되어 정상적인 냉동 사이클을 구성하며 이때 병렬 연결된 제상 타이머에도 통전되어 제상타이머의 시간작동을 계속한다. 그리고 제상타이머의 저항(20000Ω)이 직렬 연결된 히터코드의 저항(500Ω)을 무시할 만큼 크므로 전류의 전부는 제상 타이머에만 통전되고 히터코드에는 통전되지 않아 히터코드는 발열하지 않는다.The present invention distributes the amount of heat generated when two defrosting devices are energized at the same time in the refrigerator by discharging two defrosting devices in sequence, thereby distributing the bad effect of heat on the storage. It is connected to contact point 4 to form a normal refrigeration cycle. At this time, the defrost timer connected in parallel is energized and the defrost timer continues to operate. In addition, since the resistance (20000 mA) of the defrost timer is large enough to ignore the resistance (500 mA) of the heater cord connected in series, all of the current is energized only to the defrost timer and not to the heater cord, so that the heater cord does not generate heat.

제상타이머가 일정시간이 경과하면 제4도 히터코드-L 통전시 회로와 같이 접점 3은 접점 2에 연결되어 압축기는 가동을 중지하고 히터코드가 발열하여 제상을 시행하고 제상조절기1(49)이 제상완료를 감지하여 스위치가 끊어지면 다시 제상타이머의 시간작동이 시작되고 이와 동시에 접점 3은 제5도 히터 플로에트-T/E 통전시 회로와 같이 접점 5에 통전되어 히터 코드L은 발열을 중지하고 히터플레이트-T/E가 발열하여 히터 코드-L은 발열에 의해서 낙하된 잔빙을 녹여서 배수시킨다.When the defrost timer has elapsed, the contact point 3 is connected to the contact point 2 like the circuit of the heater cord-L power supply in FIG. 4, the compressor is stopped, the heater cord is heated to perform defrosting, and the defrost regulator 1 (49) When the defrost is detected and the switch is disconnected, the defrost timer starts to operate again, and at the same time, the contact point 3 is energized to the contact point 5 as in the circuit of FIG. 5 Heater Float-T / E, and the heater code L stops heating. The heater plate-T / E generates heat and the heater cord-L melts and drains the remaining ice dropped by the heat.

히터 플레이트 T/E의 잔빙처리 완료를 제상조절기2(49')가 감지하여 스위치가 끊어지면 제상타이머(47)는 다시 작동이 시작되고 이와 동시에 제3도 본 고안의 회로도<정상작동시>와 같이 접점 3이 접점 4에 연결되어 정상적인 냉동 사이클 기능을 수행한다.When the defrost controller 2 (49 ') detects the completion of the residual ice treatment of the heater plate T / E and the switch is disconnected, the defrost timer 47 starts to operate again. Likewise, contact 3 is connected to contact 4 to perform the normal refrigeration cycle function.

본 고안은 제상회로에서 2개의 제상장치를 순차적으로 발열시켜 동시 발열에 의해 저장식품에 순간적으로 많은 열이 침투하여 나쁜 영향을 미치는 것을 분산시키고 히트 플레이트-T/E의 발열을 6∼10분간의 휴지기간을 이용함으로써 증발기에 있는 많은 물방울이 자연 낙하시키는 시간을 히터 플레이트 발열시간으로 이용함으로써 전체적인 열침투를 약화시켜 저장음식의 지정효과를 높일 수 있는 것이다.The invention devises two defrosting devices sequentially in the defrosting circuit, dispersing the bad effects of a large amount of heat penetrating into the stored food instantaneously by simultaneous heating, and generating heat of the heat plate-T / E for 6-10 minutes. By using the rest period, many drops of water in the evaporator can be used as a heater plate heating time to weaken the overall heat penetration and increase the designated effect of the stored food.

Claims (1)

히터코드-L(51)과, 상기 히터코드-L(51)과 제상조절기1(49)와, 제상조절기2(49')와 히터플레이트(50)와, 압축기를 각각 병렬로 제상타이머(47)의 별도단자로하여 전원에 연결하여 2개의 제상장치를 순차적으로 통전시키도록 구성된 것을 특징으로 하는 냉장고 제상히터의 순차적 통전회로.The heater cord-L (51), the heater cord-L (51), the defrost regulator 1 (49), the defrost controller 2 (49 '), the heater plate 50, and the defrost timer (47) in parallel, respectively. Sequential energizing circuit of the refrigerator defrost heater, characterized in that the two defrosting devices are sequentially energized by connecting to a power source as a separate terminal of the).
KR2019890021209U 1989-12-30 1989-12-30 Defrost heater control circuit of refrigerator KR910007508Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890021209U KR910007508Y1 (en) 1989-12-30 1989-12-30 Defrost heater control circuit of refrigerator

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Application Number Priority Date Filing Date Title
KR2019890021209U KR910007508Y1 (en) 1989-12-30 1989-12-30 Defrost heater control circuit of refrigerator

Publications (2)

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KR910012185U KR910012185U (en) 1991-07-30
KR910007508Y1 true KR910007508Y1 (en) 1991-09-27

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KR2019890021209U KR910007508Y1 (en) 1989-12-30 1989-12-30 Defrost heater control circuit of refrigerator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100578363B1 (en) * 1999-11-10 2006-05-11 주식회사 엘지이아이 Circuit for defrost control in refrigerator

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