KR20130127678A - Freezer defrost system - Google Patents

Freezer defrost system Download PDF

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Publication number
KR20130127678A
KR20130127678A KR1020120051376A KR20120051376A KR20130127678A KR 20130127678 A KR20130127678 A KR 20130127678A KR 1020120051376 A KR1020120051376 A KR 1020120051376A KR 20120051376 A KR20120051376 A KR 20120051376A KR 20130127678 A KR20130127678 A KR 20130127678A
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South Korea
Prior art keywords
evaporator
refrigerant
storage tank
heat storage
compressor
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KR1020120051376A
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Korean (ko)
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KR101361932B1 (en
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강채동
이동규
박천완
김경훈
김형국
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전북대학교산학협력단
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Priority to KR1020120051376A priority Critical patent/KR101361932B1/en
Publication of KR20130127678A publication Critical patent/KR20130127678A/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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/053—Compression system with heat exchange between particular parts of the system between the storage receiver and another part of the system
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/143—Collecting condense or defrost water; Removing condense or defrost water characterised by means to fix, clamp, or connect water pipes or evaporation trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/147—Collecting condense or defrost water; Removing condense or defrost water characterised by capillary, wick, adsorbent, or evaporation elements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)

Abstract

The present invention relates to a defroster of a refrigerator. More specifically, the present invention relates to the defroster of the refrigerator capable of by heating the inside of a thermal storage tank installed between a compressor and a condenser with circulated heat of a refrigerant of a refrigerant pipe, which is a defrosting heat source of an evaporator, and efficiently performing defrosting operation by integrally forming a refrigerant pipe and a defrosting heater pipe, which is installed in the evaporator, to be in contact with each other in a row. The refrigerator formed with a refrigeration cycle connecting the compressor, the condenser, an expansion valve, the evaporator with the refrigerant pipe includes the thermal storage tank including a thermal storage substance inside and installed in the refrigerant pipe turning between the condenser and the compressor in order to store refrigerant heat passing through the compressor; the defrosting heater pipe performing heat exchange by being installed on inner one side of the thermal storage tank and recycling the refrigerant defrosted in the evaporator to the thermal storage tank; the evaporator including the defrosting heater pipe of which the outer circumference is integrally connected to the refrigerant pipe installed in the evaporator in the longitudinal direction in the row; and a circulation pump enabling the refrigerant to be circulated in the evaporator and the thermal storage tank by being installed in a circulation path of the defrosting heater pipe.

Description

냉동기의 제상장치{Freezer defrost system } Freezer defrost system

본 발명은 냉동기의 제상장치에 관한 것으로, 구체적으로는 압축기와 응축기 사이에 설치된 축열탱크 내부를 순환하는 냉매관의 냉매열로 가온시켜 이를 증발기의 제상열원으로 하고 증발기 내부에 설치된 냉매관과 제상용 히터관이 병렬로 접촉되게 일체로 형성하여 효율적으로 제상운전이 가능한 냉동기의 제상장치에 관한 것이다.
The present invention relates to a defroster of a refrigerator, and specifically, to a refrigerant heat of a refrigerant pipe circulating inside a heat storage tank installed between a compressor and a condenser, which is used as a defrost heat source of an evaporator, and a refrigerant pipe installed inside an evaporator and a defroster. It is related with the defrosting apparatus of the refrigerator which is integrally formed so that a heater tube may contact in parallel and can be efficiently defrosted.

일반적으로 냉동기라 하면 냉장고나 냉동창고와 같이 어류 육류 또는 기타 냉동식품과 같은 음식물을 보관하는 기기를 말하는데 원리는 냉매가 압축, 응축, 팽창, 증발 과정의 냉동사이클을 거쳐 순환하여 냉동기 내부에 냉기를 발생시킨다.
Generally, a freezer refers to a device that stores food such as fish meat or other frozen food, such as a refrigerator or a freezer, and the principle is that refrigerant is circulated through a freezing cycle of compression, condensation, expansion, and evaporation. Generate.

이때 냉동기 내에 구비되어 냉기를 발생하는 역할을 하는 증발기의 표면에 성에가 발생하여 결빙되는데 점차 시간이 지남에 따라 결빙 면적이 커지면서 냉동효율이 저하되는 문제점이 있다.
In this case, the frost is generated on the surface of the evaporator which serves to generate cold air in the freezer, and there is a problem in that the freezing efficiency decreases as the freezing area gradually increases over time.

상기와 같은 문제점으로 인해 냉동기의 원활한 냉각효과를 얻기 위해서는 지속적으로 증발기의 제상운전이 필요하다.
Due to the above problems, defrosting of the evaporator is required continuously to obtain a smooth cooling effect of the freezer.

이와 관련된 선행기술로서 등록특허 10-0388720호(냉동창고용 냉동시스템의 제상장치 및 제상방법)는 도 1에 도시된 바와 같이, 증발기(20)의 상측부위에 물이 공급되는 공급부(52)로부터 분기되며, 상측방향으로 다수의 분무공(56)이 형성된 분배관(54)이 분기형성된 인렛파이프(50)와, 상기 인렛파이프(50)의 분배관(54)에 형성된 분무공(56)과 대응하게 본체(10)의 상부측에 형성되고, 양측이 외측방향으로 일정각도 경사지게 형성된 반사판(60)이 설치되어 상기 인렛파이프(50)의 분배관에 형성된 분무공(56)을 통해 분무된 물이 상기 반사판(60)에 부딪히면서 분수식으로 낙하되게 이루어진 구성이 제시되어 있다.
As a related art, Patent No. 10-0388720 (Defrosting apparatus and defrosting method of a refrigeration system for a refrigerated warehouse), as shown in Figure 1, from the supply unit 52 is supplied water to the upper portion of the evaporator 20 The inlet pipe 50 is branched, the distribution pipe 54 is formed with a plurality of spray holes 56 in the upward direction and the spray hole 56 formed in the distribution pipe 54 of the inlet pipe 50 and Correspondingly formed on the upper side of the main body 10, the reflection plate 60 formed on both sides inclined at a predetermined angle in the outward direction is installed and sprayed through the spray hole 56 formed in the distribution pipe of the inlet pipe 50 A configuration made to fall in a fractional manner while hitting the reflecting plate 60 is presented.

그러나 상기 기술은 분배관(54)의 상측방향으로 형성된 분무공(56)을 통해 물이 분사되어 상부에 구비된 반사판(60)에 부딪히면서 하측방향의 증발기(20)로 분무 되는 과정에 있어서, 분배관(54)의 분무공(56)에 물이 다시 떨어져 형성된 물방울이 냉동이 가동되면서 그 부분이 얼게 되고 이 때문에 분무공(56)이 막혀 원활한 분무작용에 차질이 생기는 문제점이 있다.
However, in the above technique, the water is sprayed through the spray hole 56 formed in the upper direction of the distribution pipe 54 to impinge on the reflecting plate 60 provided on the upper side, and sprayed into the lower evaporator 20 in the process of Water droplets formed in the spray hole 56 of the pipe 54 again is frozen, the portion of the water is frozen as the freezing is operated, and this causes the spray hole 56 to be blocked, resulting in a smooth spraying operation.

뿐만 아니라 반사판(60)에 부딪혀 하측 방향으로 분배관(54)을 지나서 증발기(20)로 분무 되기 때문에 분배관(54)이 차지하는 면적부분은 가려져 증발기(20) 전체에 골고루 분무 될 수 없고 이에 따른 제상효과가 저하되는 문제점이 있다.
In addition, since it hits the reflecting plate 60 and is sprayed to the evaporator 20 through the distribution pipe 54 in the downward direction, the area portion occupied by the distribution pipe 54 is covered and cannot be evenly sprayed all over the evaporator 20. There is a problem that the defrosting effect is lowered.

또 다른 선행기술로서 공개특허 1995-0003760호(냉장고의 제상장치)는 도 2에서 도시된 바와 같이, 압축기(1)에서 발생되는 고온을 축열시키도록 소정물질을 저장하여 압축기(1)에 밀착 설치된 축열용기(7)와, 상기 축열용기(7) 내부를 선회하고, 증발기(5)를 소정형태로 감싸도록 하되, 상기축열용기(7)와 증발기(5) 사이에 열교환이 가능하도록 폐회로로 구성한 제상용 냉매관(9)과, 상기 제상용 냉매관(9)의 소정부위에 설치되어 냉매의 흐름을 강제 구동시키는 순환펌프(10)로 이루어진 구성이 제시되어 있다.
As another prior art, Korean Patent Publication No. 1995-0003760 (a defroster of a refrigerator) is installed in close contact with a compressor 1 by storing a predetermined material to accumulate high temperature generated in the compressor 1, as shown in FIG. The heat storage container (7) and the inside of the heat storage container (7), and to wrap the evaporator (5) in a predetermined form, but configured as a closed circuit to enable heat exchange between the heat storage container (7) and the evaporator (5). The defrost coolant pipe 9 and the circulation pump 10 installed in a predetermined portion of the defrost coolant pipe 9 forcibly driving the flow of the coolant are presented.

상기 기술은 축열용기(7)가 압축기(1)와 밀착하여 설치되는데 압축기(1)에서 발생되는 상당량의 진동에 의해 밀착설치된 축열용기(7)에 진동이 그대로 전달되어 축열용기(7)가 파손될 우려가 있고, 이에 따른 축열용기(7)의 교체 또는 유지비용문제와 내부물질이 누설되는 문제점이 있다.
According to the above technique, the heat storage container 7 is installed in close contact with the compressor 1, and the vibration is transferred to the heat storage container 7 installed in close contact with the vibration generated in the compressor 1 so that the heat storage container 7 may be damaged. There is a concern, and thus there is a problem of replacement or maintenance cost of the heat storage container 7 and leakage of internal materials.

또한 상기 기술은 제상용 냉매관(9)이 증발기(5)의 외부만 감싸는 형태의 구조로써 내부까지 열이 제대로 전달되지 않기 때문에 열 효율이 저하될 뿐만 아니라 제상 효과에 비해 냉장고 내부온도가 상승하는 문제점이 있고, 이 때문에 원활한 제상효과를 얻기 위해서는 별도로 핫 가스 또는 물 분사장치를 구비해야 하는 문제점이 있다. In addition, the technology is a structure in which the defrost refrigerant tube 9 wraps only the outside of the evaporator 5, and since heat is not properly transferred to the inside, the thermal efficiency is lowered and the temperature inside the refrigerator is increased compared to the defrosting effect. There is a problem, and therefore, in order to obtain a smooth defrosting effect, there is a problem in that a separate hot gas or water injector is provided.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로,SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

압축기와 응축기 사이에 축열탱크를 설치하여 압축기를 거친 고온의 냉매열을 저장하고 제상용 히터관의 열원으로 사용함으로써 에너지를 절감할 수 있고 상기 축열탱크가 압축기에서 발생하는 진동에 영향을 받지 않는 구성으로 되어 있기 때문에 축열탱크의 자체내구성을 높이고 아울러 내부의 축열물질의 보존성을 향상시키는 냉동기의 제상장치를 제공함에 목적이 있다.
A heat storage tank is installed between the compressor and the condenser to store high temperature heat of refrigerant passing through the compressor and to be used as a heat source of a defrost heater tube, thereby saving energy, and the heat storage tank is not affected by vibration generated in the compressor. It is an object of the present invention to provide a defrosting device of a refrigerator that increases the durability of the heat storage tank and improves the storage property of the heat storage material therein.

또한 증발기의 냉매관과 제상용 히터관이 서로 병렬접촉되게 일체로 형성하여 증발기의 외부뿐만 아니라 제상이 힘든 내부까지 효과적으로 제상이 가능하고 제상운전중에 냉동시스템을 가동할 수 있어 냉동기의 내부온도에 거의 영향을 주지 않으면서 지속적인 저온유지가 가능한 냉동기의 제상장치를 제공함에 목적이 있다.
In addition, the refrigerant tube of the evaporator and the defrost heater tube are integrally formed in parallel contact with each other to effectively defrost not only the outside of the evaporator but also the difficult defrost inside, and the refrigeration system can be operated during the defrosting operation. It is an object of the present invention to provide a defroster of a freezer capable of maintaining a constant low temperature without affecting.

또한 냉매관이 축열탱크를 거쳐 응축기로 연결되기 때문에 축열탱크의 축열용량에 따라 응축기의 용량을 감소시킬 수 있고 이에 따른 설치비용과 유지비용을 절감할수 있는 냉동기의 제상장치를 제공함에 목적이 있다.
In addition, since the refrigerant pipe is connected to the condenser via the heat storage tank, it is an object of the present invention to provide a defroster of the refrigerator which can reduce the capacity of the condenser according to the heat storage capacity of the heat storage tank and thereby reduce the installation and maintenance costs.

본 발명은 압축기, 응축기, 팽창변, 증발기를 냉매관으로 순환 연결하는 냉동사이클로 이루어진 냉동기에 있어서, 상기 압축기를 거친 냉매열을 축열 할 수 있도록 압축기와 응축기 사이에 선회되는 냉매관에 설치되되 내부에 축열물질이 구비된 축열탱크와, 상기 축열탱크 내부 일측에 선회되게 설치되어 열교환되고 증발기에서 제상이 이루어지도록 한 다음 축열탱크로 재순환되는 제상용 히터관과, 상기 증발기의 내부에 설치된 냉매관과 길이방향으로 외주면이 병렬접촉되어 일체로 결합된 제상용 히터관으로 구성되는 증발기와, 상기 제상용 히터관의 순환경로에 설치되어 냉매가 증발기와 축열탱크를 순환하도록 한 순환펌프를 포함하여 이루어진 것을 특징으로 한다.
The present invention is a refrigerator consisting of a refrigeration cycle for circulating a compressor, a condenser, an expansion valve, and an evaporator to a refrigerant pipe, wherein the refrigerant is rotated between the compressor and the condenser so as to accumulate the heat of refrigerant passing through the compressor. A heat storage tank equipped with a material, a defrost heater tube installed on one side of the heat storage tank to be heat exchanged and defrosted in an evaporator, and then recycled to the heat storage tank, and a refrigerant pipe installed in the evaporator and a longitudinal direction The outer peripheral surface is in parallel contact with the evaporator consisting of a defrost heater tube coupled integrally, and is provided in the circulation path of the defrost heater tube, the refrigerant pump comprises a circulation pump for circulating the evaporator and the heat storage tank. do.

또한 상기 축열탱크의 축열물질은 상변화물질(PCM)로 구비되는 것을 특징으로 한다.
In addition, the heat storage material of the heat storage tank is characterized in that it is provided as a phase change material (PCM).

또한 상기 제상용 히터관에 사용되는 냉매는 액체냉매로 이루어지는 것을 특징으로 한다.
In addition, the refrigerant used in the defrost heater tube is characterized in that consisting of a liquid refrigerant.

또한 상기 증발기의 일측에 송풍이 유입되는 송풍팬이 설치되되 송풍유입방향 전방에 제상용 히터관이 설치되고 후방에 냉매관이 설치되는 것을 특징으로 한다.
In addition, a blower fan is installed on one side of the evaporator is installed, characterized in that the defrost heater tube is installed in the front of the air inlet flow direction and the refrigerant pipe is installed in the rear.

또한 상기 증발기의 제상용 히터관과 냉매관 사이의 외주면에 확장된 접촉면을 형성하여 열전달 면적이 확대될 수 있도록 한 것을 특징으로 한다.
In addition, an extended contact surface is formed on the outer circumferential surface between the defrost heater tube and the refrigerant tube of the evaporator, so that the heat transfer area can be enlarged.

본 발명은 압축기와 응축기 사이에 축열탱크를 설치하여 압축기를 거친 냉매의 열을 저장하고 제상용 히터관의 열원으로 사용함으로써 에너지를 절감할 수 있고 상기 축열탱크가 압축기에서 발생하는 진동에 영향을 받지 않는 구성으로 되어 있기 때문에 축열탱크의 자체내구성을 높이고 아울러 내부의 축열물질의 보존성을 향상시키는 효과가 있다.
The present invention can save energy by installing a heat storage tank between the compressor and the condenser to store the heat of the refrigerant passing through the compressor and use it as a heat source of the defrost heater tube and the heat storage tank is not affected by vibration generated in the compressor. Since it does not have a configuration, it is effective to increase the durability of the heat storage tank and to improve the storage property of the heat storage material therein.

또한 증발기의 냉매관과 제상용 히터관이 서로 병렬접촉되게 일체로 형성하여 증발기의 외부뿐만 아니라 제상이 힘든 내부까지 효과적으로 제상이 가능하고 제상운전중에 냉동시스템을 가동할 수 있어 냉동기의 내부온도에 거의 영향을 주지 않으면서 지속적인 저온유지가 가능한 효과가 있다.
In addition, the refrigerant tube of the evaporator and the defrost heater tube are integrally formed in parallel contact with each other to effectively defrost not only the outside of the evaporator but also the difficult defrost inside, and the refrigeration system can be operated during the defrosting operation. It has the effect of sustained low temperature without affecting.

또한 냉매관이 축열탱크를 거쳐 응축기로 연결되기 때문에 축열탱크의 축열용량에 따라 응축기의 용량을 감소시킬 수 있고 이에 따른 설치비용과 유지비용을 절감할수 있는 효과가 있다.
In addition, since the refrigerant pipe is connected to the condenser via the heat storage tank, the capacity of the condenser can be reduced according to the heat storage capacity of the heat storage tank, thereby reducing the installation cost and maintenance cost.

도 1 은 종래의 제상장치를 나타낸 도면.
도 2 는 또 다른 종래의 제상장치를 나타낸 도면.
도 3 은 본 발명에 따른 제상장치의 구성도.
도 4 는 본 발명에 따른 증발기의 구성을 나타낸 사시도.
도 5 는 본 발명에 따른 증발기의 냉매관과 제상용 히터관의 결합을 나타낸 단면도.1 is a view showing a conventional defrosting apparatus.
2 shows another conventional defrosting apparatus.
3 is a block diagram of a defrosting apparatus according to the present invention.
Figure 4 is a perspective view showing the configuration of the evaporator according to the present invention.
Figure 5 is a cross-sectional view showing the coupling of the refrigerant pipe and the defrost heater tube of the evaporator according to the present invention.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 그리고 본 발명을 설명함에 있어서, 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

일반적으로 냉동기의 냉동사이클을 설명하면 다음과 같다.In general, the refrigeration cycle of the refrigerator is as follows.

냉매를 압축하여 고온고압의 기체상태로 토출하는 압축기(100)와, 압축된 냉매를 외기와 열교환(열방출)하여 고온고압의 액체상태로 하는 응축기(200)와, 응축된 냉매를 팽창시켜 저온저압 상태의 액체상태로 변화시키는 팽창변(300)과, 저온저압의 액체상태 냉매를 외기와 열교환(열흡수)하여 저온저압의 기체상태에서 다시 상기 압축기(100)로 보내는 증발기(400)로 이루어져 있다.
The compressor 100 compresses the refrigerant and discharges it in a gaseous state of high temperature and high pressure, the condenser 200 which heats (compresses) the compressed refrigerant to the outside to form a liquid state of high temperature and high pressure, and expands the condensed refrigerant at low temperature. An expansion valve 300 for changing to a low pressure liquid state, and an evaporator 400 for exchanging (collecting heat) the liquid refrigerant of low temperature and low pressure to the outside and sending it back to the compressor 100 in a low temperature low pressure gas state. .

이때 증발기(400)의 표면에 성에가 발생하여 결빙되는데 점차 시간이 지남에 따라 결빙 면적이 커지면서 냉각효율이 저하되는 문제점이 있었다.
In this case, frost occurs on the surface of the evaporator 400, and as the frost gradually increases over time, there is a problem in that the cooling efficiency decreases.

본 발명은 이러한 문제점을 해결하기 위해 도 3 내지 5에 도시한 바와 같이, 압축기(100), 응축기(200), 팽창변(300), 증발기(400)를 냉매관(1)으로 순환 연결하는 냉동사이클로 이루어진 냉동기에 있어서, 상기 압축기(100)를 거친 냉매열을 축열 할 수 있도록 압축기(100)와 응축기(200) 사이에 선회되는 냉매관(1)에 설치되되 내부에 축열물질이 구비된 축열탱크(250)와, 상기 축열탱크(250) 내부 일측에 선회되게 설치되어 열교환되고 증발기(400)에서 제상이 이루어지도록 한 다음 축열탱크(250)로 재순환되는 제상용 히터관(2)과, 상기 증발기(400)의 내부에 설치된 냉매관(1)과 길이방향으로 외주면이 병렬접촉되어 일체로 결합된 제상용 히터관(2)으로 구성되는 증발기(400)와, 상기 제상용 히터관(2)의 순환경로에 설치되어 냉매가 증발기(400)와 축열탱크(250)를 순환하도록 한 순환펌프(500)를 포함하여 이루어진 것을 특징으로 하는 냉동기의 제상장치.
3 to 5 to solve this problem, a refrigeration cycle for circulating the compressor 100, the condenser 200, expansion valve 300, the evaporator 400 to the refrigerant pipe (1) In the refrigerating device, a heat storage tank having a heat storage material provided therein is installed in a refrigerant pipe (1) which is pivoted between the compressor (100) and the condenser (200) to heat storage of the refrigerant heat passing through the compressor (100). 250, and the defrost heater tube (2) and the evaporator (recirculated to the heat storage tank 250 is installed on one side of the heat exchanger to be defrosted in the evaporator 400 and then recycled to the heat storage tank 250, Evaporator 400 composed of a defrost heater tube 2 integrally coupled to the refrigerant pipe 1 installed inside the 400 and the outer peripheral surface in parallel in the longitudinal direction, the circulation of the defrost heater tube (2) Is installed in the path so that the refrigerant circulates the evaporator 400 and the heat storage tank 250 Defroster of the refrigerator, characterized in that made including a circulation pump (500).

본 발명의 축열탱크(250)는 압축기(100)를 거친 고온고압의 기체상태 냉매의 열을 회수하고 축열 하기 위한 구성으로써 내부에는 냉매관(1)과 제상용 히터관(2)의 열교환이 원활히 이루어지도록 축열물질이 채워지는데 이 축열물질은 상변화물질(PCM)로 구비되어 사용된다.
The heat storage tank 250 of the present invention is configured to recover the heat of the high-temperature, high-pressure gaseous refrigerant passing through the compressor 100 and to accumulate heat, and the heat exchange between the refrigerant pipe 1 and the defrost heater tube 2 is performed smoothly. The heat storage material is filled to make the heat storage material, which is used as a phase change material (PCM).

상기 상변화물질(Phase Change material)은 공지된 것으로, 상변화과정을 통하여 많은 양의 열에너지를 축적하거나 저장된 열에너지를 방출하며, 일정온도에 따라 액체에서 고체, 고체에서 액체로 변하면서 잠열(열을저장)하거나 방열(열을방출)하는 축열 물질을 의미한다.
The phase change material is known and accumulates a large amount of thermal energy or emits stored thermal energy through a phase change process, and changes latent heat (heat from heat to liquid, solid to liquid, depending on a predetermined temperature). Storage) or heat storage material that radiates heat (dissipates heat).

본 발명의 축열탱크(250)는 압축기(100)를 거친 냉매열을 축열하기 위한 구성으로써 압축기(100)와 응축기(200) 사이에 설치되는 구성이지만 도 3에 도시한 바와 같이 압축기(100)와는 이격 설치되고 응축기(200)와 근접되도록 설치한다. 종래 기술(도2)은 단순히 축열용기와 압축기(100)가 밀착되게 설치되기 때문에 압축기(100)에서 발생 되는 진동이 축열용기에 그대로 전달되었으나, 본 발명은 축열탱크(250)가 압축기(100)로부터 진동을 받지 않는 범위에 설치되기 때문에 종래 기술(도2)대비 진동을 현저히 감소시켜 축열탱크(250)의 자체내구성을 높이고 아울러 내부에 축열물질의 보존성을 향상시키게 된다.The heat storage tank 250 of the present invention is configured to accumulate the refrigerant heat passing through the compressor 100 and is installed between the compressor 100 and the condenser 200, but as shown in FIG. 3, the heat storage tank 250 is different from the compressor 100. Installed to be spaced apart and close to the condenser 200. In the related art (FIG. 2), since the heat storage container and the compressor 100 are simply installed in close contact with each other, the vibration generated from the compressor 100 is transferred to the heat storage container as it is, but in the present invention, the heat storage tank 250 includes the compressor 100. Since it is installed in a range that does not receive vibrations from the prior art (Fig. 2) significantly reduces the vibration compared to the prior art (Fig. 2) to increase the internal durability of the heat storage tank 250, and also improve the preservation of the heat storage material therein.

또한 냉매관(1)이 축열탱크(250)를 거쳐 응축기(200)로 연결되기 때문에 축열탱크(250)의 축열용량에 따라 응축기(200)의 용량을 감소시킬 수 있고 이에 따른 설치비용과 응축기(200)에 설치된 송풍팬(210)의 전기사용에 대한 유지비용을 절감할 수 있는 효과가 있다.
In addition, since the refrigerant pipe 1 is connected to the condenser 200 via the heat storage tank 250, the capacity of the condenser 200 can be reduced according to the heat storage capacity of the heat storage tank 250, and thus the installation cost and the condenser ( There is an effect that can reduce the maintenance cost for the electrical use of the blower fan 210 installed in the 200.

상기 축열탱크(250)는 내부에 선회되게 설치된 냉매관(1)의 냉매열로만 축열이 가능하지만 응축기(200)의 일측에 설치된 송풍팬(210)의 송풍유입방향 전방에 응축기(200)를 설치하고 후방에 축열탱크(250)를 구비함으로써, 상기 송풍팬(210)에 의해 외부로 방출되는 열이 축열탱크(250) 표면을 한번더 가열하여 축열효과를 높일 수 있다.
The heat storage tank 250 may be regenerated only by the heat of the coolant of the coolant pipe 1 installed to be pivoted therein, but the condenser 200 is installed in the air inlet flow direction of the blower fan 210 installed at one side of the condenser 200. And by providing a heat storage tank 250 in the rear, the heat released to the outside by the blowing fan 210 can heat the surface of the heat storage tank 250 once more to increase the heat storage effect.

본 발명의 제상용 히터관(2)은 내부에 액체냉매가 채워지고 증발기(400)와 축열탱크(250)를 순환펌프(500)에 의해 순환하면서 제상을 하기 때문에 냉동기의 가동중에도 언제든지 제상운전이 가능할 뿐만 아니라 제상운전 중에도 냉동기의 내부온도에 거의 영향을 주지 않으면서 지속적인 저온유지가 가능하다.
Defrost heater tube (2) of the present invention is defrosting operation at any time during the operation of the refrigerator because the liquid refrigerant is filled therein and defrosting while circulating the evaporator 400 and the heat storage tank 250 by the circulation pump 500. Not only is this possible, it is also possible to maintain a constant low temperature during the defrosting operation with little effect on the internal temperature of the freezer.

본 발명의 증발기(400)는 도 4에 도시된 바와 같이 제상용 히터관(2)과 냉매관(1)이 길이방향으로 병렬 접촉되어 설치되기 때문에 증발기(400)의 냉매관(1) 전체에 대한 제상효과를 얻을 수 있고, 제상용 히터관(2)이 냉매관(1)과 직접 접촉되어 가열하기 때문에 적은 열로도 신속하게 제상이 가능하다.
As shown in FIG. 4, the evaporator 400 of the present invention is installed in parallel with the defrost heater tube 2 and the refrigerant tube 1 in the longitudinal direction, and thus, the entire refrigerant tube 1 of the evaporator 400. The defrosting effect can be obtained, and since the defrosting heater tube 2 is heated in direct contact with the refrigerant tube 1, defrosting can be performed quickly even with a small amount of heat.

아울러 상기 증발기(400)의 제상용 히터관(2)은 일측에 설치된 송풍팬(410)의 유입방향 전방에 설치되고 후방에 냉매관(1)이 설치되는 것이 바람직한데 이는 송풍팬(410)에서 발생하는 바람에 의해 제상용 히터관(2)의 열이 빠르게 냉매관(1)으로 전달되어 제상효과를 상승시킬 수 있다.
In addition, the defrost heater tube (2) of the evaporator 400 is preferably installed in the inflow direction front of the blowing fan 410 installed on one side and the refrigerant pipe (1) is installed in the rear, which is in the blowing fan (410) Due to the generated wind, the heat of the defrosting heater tube 2 may be quickly transferred to the refrigerant tube 1 to increase the defrosting effect.

또한 증발기(400)의 제상용 히터관(2)과 냉매관(1)은 사이의 외주면에 확장된 접촉면(2a)을 형성하는데 상기 접촉면(2a)은 접촉부위에 용접을 하거나 금속제를 끼움 결합함으로써 열전달면적을 높여 제상효과를 높일 수 있다.
In addition, the defrost heater tube (2) and the refrigerant tube (1) of the evaporator 400 forms an extended contact surface (2a) on the outer peripheral surface between the contact surface (2a) by welding or metal fitting to the contact portion The defrosting effect can be increased by increasing the heat transfer area.

본 발명은 상기와 같은 실시예를 들어 설명하였으나, 본 발명의 권리는 적시된 실시예에 한하지 않고 본 발명의 기술사상을 벗어나지 아니하는 범위 내에서 얼마든지 다양하게 변형된 실시예가 있을 수 있다고 본다.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

1 : 냉매관
2 : 제상용 히터관
2a : 접촉면
100 : 압축기
200 : 응축기
210,410 : 송풍팬
250 : 축열탱크
300 : 팽창변
400 : 증발기
500 : 순환펌프1: refrigerant tube
2: defrost heater tube
2a: contact surface
100: Compressor
200: condenser
210,410: Blowing fan
250: heat storage tank
300: expansion valve
400: evaporator
500: circulation pump

Claims (5)

압축기(100), 응축기(200), 팽창변(300), 증발기(400)를 냉매관(1)으로 순환 연결하는 냉동사이클로 이루어진 냉동기에 있어서,
상기 압축기(100)를 거친 냉매열을 축열 할 수 있도록 압축기(100)와 응축기(200) 사이에 선회되는 냉매관(1)에 설치되되 내부에 축열물질이 구비된 축열탱크(250)와,
상기 축열탱크(250) 내부 일측에 선회되게 설치되어 열교환되고 증발기(400)에서 제상이 이루어지도록 한 다음 축열탱크(250)로 재순환되는 제상용 히터관(2)과,
상기 증발기(400)의 내부에 설치된 냉매관(1)과 길이방향으로 외주면이 병렬접촉되어 일체로 결합된 제상용 히터관(2)으로 구성되는 증발기(400)와,
상기 제상용 히터관(2)의 순환경로에 설치되어 냉매가 증발기(400)와 축열탱크(250)를 순환하도록 한 순환펌프(500)를 포함하여 이루어진 것을 특징으로 하는 냉동기의 제상장치.
In the refrigerator 100 consisting of a refrigeration cycle for circulating the compressor 100, the condenser 200, the expansion valve 300, the evaporator 400 to the refrigerant pipe (1),
A heat storage tank 250 installed in the refrigerant pipe 1 that is pivoted between the compressor 100 and the condenser 200 so as to accumulate the heat of the refrigerant passing through the compressor 100, and having a heat storage material therein;
A defrost heater tube (2) installed to be pivoted on one side of the heat storage tank (250) to be heat exchanged and defrosted in the evaporator (400) and then recycled to the heat storage tank (250);
An evaporator 400 composed of a defrost heater tube 2 integrally coupled to the refrigerant pipe 1 installed in the evaporator 400 in parallel with the outer circumferential surface thereof in a longitudinal direction;
The defrosting apparatus of the refrigerator comprising a circulation pump (500) installed in the circulation path of the defrost heater tube (2) to allow the refrigerant to circulate the evaporator (400) and the heat storage tank (250).
제 1항에 있어서,
상기 축열탱크(250)의 축열물질은 상변화물질(PCM)로 구비되는 것을 특징으로 하는 냉동기의 제상장치.The method of claim 1,
The heat storage material of the heat storage tank (250) is a defrosting device of the refrigerator, characterized in that provided with a phase change material (PCM). 제 1항에 있어서,
상기 제상용 히터관(2)에 사용되는 냉매는 액체냉매로 이루어지는 것을 특징으로 하는 냉동기의 제상장치.
The method of claim 1,
The refrigerant used in the defrost heater tube (2) is a defrost apparatus of the refrigerator, characterized in that the liquid refrigerant.
제 1항에 있어서,
상기 증발기(400)의 일측에 송풍이 유입되는 송풍팬(410)이 설치되되 송풍유입방향 전방에 제상용 히터관(2)이 설치되고 후방에 냉매관(1)이 설치되는 것을 특징으로 하는 냉동기의 제상장치.
The method of claim 1,
Blower fan 410 is installed in one side of the evaporator 400 is blown in the refrigerator inlet direction in the blowing inlet direction is installed defrost heater tube (2) and the refrigerant pipe (1) is installed in the rear Defrosting device.
제 1항에 있어서,
상기 증발기(400)의 제상용 히터관(2)과 냉매관(1) 사이의 외주면에 확장된 접촉면(2a)을 형성하여 열전달 면적이 확대될 수 있도록 한 것을 특징으로 하는 냉동기의 제상장치.The method of claim 1,
The defrosting apparatus of the refrigerator, characterized in that the heat transfer area is enlarged by forming an extended contact surface (2a) on the outer peripheral surface between the defrost heater tube (2) and the refrigerant tube (1) of the evaporator (400).
KR1020120051376A 2012-05-15 2012-05-15 Freezer with defrost system KR101361932B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241160A (en) * 2015-05-11 2016-01-13 北京工业大学 Heat storage defrosting system and method used for air-cooled refrigerator
KR20210108186A (en) * 2020-02-25 2021-09-02 (주)대성마리프 Refrigerator System for both refrigeration and freezing

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KR20160010143A (en) * 2014-07-18 2016-01-27 전북대학교산학협력단 Defrost system for Freezer
KR102604962B1 (en) 2023-04-19 2023-11-23 주식회사 세원글로벌엔터프라이즈 Refrigeration system with defrosting device

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Publication number Priority date Publication date Assignee Title
KR950003760A (en) * 1993-07-22 1995-02-17 배순훈 Defroster of the refrigerator
KR20090075043A (en) * 2008-01-03 2009-07-08 주식회사 대우일렉트로닉스 A refrigerator having function for preventing dew from forming using heat storing reagent
JP2010032152A (en) * 2008-07-30 2010-02-12 Panasonic Corp Cooler with defrosting device, its manufacturing method, and article storage device comprising cooler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105241160A (en) * 2015-05-11 2016-01-13 北京工业大学 Heat storage defrosting system and method used for air-cooled refrigerator
KR20210108186A (en) * 2020-02-25 2021-09-02 (주)대성마리프 Refrigerator System for both refrigeration and freezing

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