KR100357109B1 - A radiative heater of plastic condenser - Google Patents
A radiative heater of plastic condenser Download PDFInfo
- Publication number
- KR100357109B1 KR100357109B1 KR1020000019319A KR20000019319A KR100357109B1 KR 100357109 B1 KR100357109 B1 KR 100357109B1 KR 1020000019319 A KR1020000019319 A KR 1020000019319A KR 20000019319 A KR20000019319 A KR 20000019319A KR 100357109 B1 KR100357109 B1 KR 100357109B1
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- South Korea
- Prior art keywords
- heat exchanger
- heat
- heater
- radiant heater
- synthetic resin
- Prior art date
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- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 7
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- 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
본 발명은 합성수지 열교환기를 제상하도록 복사 히터를 설치함으로써, 열교환기와 복사 히터의 제작 및 설치를 용이하게 하고, 제작원가를 낮추면서, 열교환기의 냉각 효율과 에너지 효율을 향상시킨 것이다.The present invention facilitates the manufacture and installation of the heat exchanger and the radiant heater by installing the radiant heater to defrost the synthetic heat exchanger, and improves the cooling efficiency and the energy efficiency of the heat exchanger while lowering the manufacturing cost.
본 발명은 이를 위하여 일정방향으로 벤딩되어 사(蛇)형으로 전열면을 형성하고, 다수개의 열교환판으로 형성된 합성수지 열교환기의 저면에서 소정의 거리만큼 이격되어 상기 전열면이 상기 열교환판면과 서로 수직되도록 설치된 것을 특징으로 하는 합성수지로 형성된 열교환기의 제상히터가 제공되도록 한 것이다.The present invention is bent in a predetermined direction for this purpose to form a heat transfer surface in the form of a four, spaced apart by a predetermined distance from the bottom surface of the synthetic resin heat exchanger formed of a plurality of heat exchange plate so that the heat transfer surface is perpendicular to the heat exchange plate surface It is to provide a defrost heater of the heat exchanger formed of a synthetic resin, characterized in that installed so as to.
Description
본 발명은 냉장고용 열교환기에 대한 것으로서, 특히 합성수지로 형성된 열교환기의 제상에 복사 히터를 사용한 것이다.The present invention relates to a heat exchanger for a refrigerator, in particular to the use of a radiant heater on the defrost of the heat exchanger formed of synthetic resin.
일반적으로 열교환기는 냉장실과 냉동실이 분리된 냉장고일 때, 냉동실에 설치되며, 냉장고에 보관되는 음식물의 신선도가 유지되도록 상기 열교환기 내를 유동하는 냉매를 이용하여 냉동실과 냉장실의 순환 공기를 저온으로 유지시키는 기기이다.In general, when the refrigerator is a refrigerator separated from the refrigerating compartment and the freezing compartment, the heat exchanger is installed in the freezing compartment and maintains the circulating air in the freezer compartment and the refrigerating compartment at a low temperature by using a refrigerant flowing in the heat exchanger to maintain the freshness of the food stored in the refrigerator. It is a device to let.
이러한 열교환시 고온·다습한 공기가 저온의 열교환기 표면에서 서리로 형성된다.During this heat exchange, hot and humid air forms frost on the surface of the low temperature heat exchanger.
그러나, 구리 또는 알루미늄 튜브로 유로를 형성한 열교환기는 제상시 열의 전도를 이용하는 제상 히터를 사용할 수 있지만, 합성 수지로 형성된 열교환기는 열에 약하기 때문에 열교환기가 손상을 입게 될뿐 아니라 열전도계수가 매우 낮기 때문에 직접적인 전도를 가하는 제상 히터는 사용될 수 없다.However, heat exchangers formed with copper or aluminum tubes can use a defrost heater that utilizes heat conduction during defrosting.However, heat exchangers made of synthetic resins are not susceptible to heat and therefore the heat exchanger will be damaged and the heat conductivity is very low. Defrost heaters that apply conduction cannot be used.
상기한 문제점을 해결하고자 안출된 본 발명은 합성수지로 형성된 열교환기에 복사 히터를 제상 히터로 설치하되 상기 복사 히터를 사(蛇)형으로 벤딩하여 복사열량을 증가시킴으로써 제상성능을 향상시키고, 히터와 냉매관이 비접촉하도록 하여 열교환기의 손상을 방지하는 제상 히터가 제공되도록 하는 데 그 목적이 있다.The present invention devised to solve the above problems is to install a radiant heater in a heat exchanger formed of a synthetic resin as a defrost heater to improve the defrosting performance by increasing the radiant heat by bending the radiant heater in a four-type, heater and refrigerant It is an object of the present invention to provide a defrost heater which makes the tube non-contact to prevent damage to the heat exchanger.
도 1은 본 발명에 따른 열교환기와 복사 히터를 나타내는 정면도 및 저면도1 is a front view and a bottom view showing a heat exchanger and a radiant heater according to the present invention.
<도면 주요 부분의 부호 설명><Description of Signs of Main Parts of Drawing>
1 : 열교환판 2 : 헤더1: heat exchange plate 2: header
3 : 열교환기 4 : 복사 히터3: heat exchanger 4: radiant heater
11 : 입구관 12 :출구관11: entrance tube 12: exit tube
본 발명은 이를 위하여, 일정 방향으로 절곡된 전열면으로 형성되고, 다수개의 열교환판으로 형성된 합성수지 열교환기의 저면에서 소정의 거리만큼 이격되어 상기 전열면이 상기 열교환판면과 서로 대향되도록 설치되는 합성 수지로 형성된 열교환기의 제상히터가 제공되도록 한 것이다.To this end, the synthetic resin is formed by a heat transfer surface bent in a predetermined direction, spaced apart by a predetermined distance from the bottom surface of the synthetic resin heat exchanger formed of a plurality of heat exchange plate is installed so that the heat transfer surface is opposed to each other the heat exchange plate surface It is to provide a defrost heater of the heat exchanger formed by.
본 발명을 첨부도면 도 1에 따라 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to FIG. 1 as follows.
본 발명의 열교환기는 열교환판(1)과 헤더(2)로 대별되는데, 상기 열교환판은 압출 또는 사출방식으로 원형 또는 나선형 등의 돌기인 핀과 튜브가 일체로 형성되어 구성된다.The heat exchanger of the present invention is roughly divided into a heat exchanger plate 1 and a header 2, and the heat exchanger plate is formed by integrally forming a fin and a tube, which are protrusions such as circular or spiral, by extrusion or injection.
이러한 열교환판(1)은 냉장고의 여유공간 형상에 따라 사출방식으로 다수회벤딩시켜 사(蛇)형으로 형성시킨 후, 양단을 내부가 비어 있는 헤더(2)에 각각 결합시킨다.The heat exchange plate (1) is bent a number of times by injection molding according to the shape of the free space of the refrigerator, and then formed into four shapes, and then both ends are respectively coupled to the empty header (2).
이 때, 상기 열교환기에 적용되는 열교환 효율에 따라 열교환판의 절곡횟수가 결정된다.At this time, the number of bending of the heat exchanger plate is determined according to the heat exchange efficiency applied to the heat exchanger.
상기와 동일한 방법으로 다수개의 열교환판(1)을 사형으로 형성시킨 후, 헤더(2)에 종축 방향으로 일정한 간격으로 상기 열교환판(1)을 결합시키면 열교환기(3)가 제작된다.After forming a plurality of heat exchange plates (1) in the same manner as described above, the heat exchange plate (1) is produced by coupling the heat exchange plates (1) at regular intervals in the longitudinal axis direction to the header (2).
냉장고의 냉동사이클이 진행될 수 있도록 상기 열교환기의 입구관(11)은 튜브를 이용하여 팽창 밸브와 연결시키고, 출구관(12) 또한 튜브로 압축기와 연결시킨다.The inlet pipe 11 of the heat exchanger is connected to the expansion valve using a tube, and the outlet pipe 12 is also connected to the compressor by a tube so that the refrigeration cycle of the refrigerator can proceed.
그리고, 냉매 또는 코일 등이 삽입되는 유리 또는 금속으로 형성된 튜브를 상기 열교환판(1)이 벤딩된 방향과 교차되게 벤딩시켜 복사 히터(4)를 형성시킨다. 상기 복사 히터(4)는 사(蛇)형으로 벤딩하여 전열면적을 확대함이 바람직하다.Then, the tube formed of glass or metal into which the refrigerant or the coil is inserted is bent to cross the direction in which the heat exchange plate 1 is bent to form the radiant heater 4. It is preferable that the radiant heater 4 bends in a quadrangular shape to enlarge the heat transfer area.
상기 복사 히터(4)는 상기 열교환기(3)의 열교환판면과 상기 복사 히터(4)의 전열면이 수직이 되도록 열교환기(3)의 저면에 소정의 거리만큼 이격시켜 설치시킨다.The radiant heater 4 is spaced apart from the bottom surface of the heat exchanger 3 by a predetermined distance such that the heat exchange plate surface of the heat exchanger 3 and the heat transfer surface of the radiant heater 4 are perpendicular to each other.
따라서, 상기 열교환기와 복사 히터는 평행하게 설치되고, 상기 열교환기의 열교환판의 벤딩 방향과 상기 복사 히터의 벤딩 방향이 서로 소정의 각도를 이룬다.Therefore, the heat exchanger and the radiant heater are installed in parallel, and the bending direction of the heat exchanger plate of the heat exchanger and the bending direction of the radiant heater form a predetermined angle with each other.
이 때, 상기 열교환기의 열교환판의 벤딩 방향과 상기 복사 히터의 벤딩 방향이 서로 직교하여 열교환판의 열교환면과 복사 히터의 전열면이 수직을 이루면복사열이 복사 히터로부터 원거리에 설치된 열교환판으로 효율적으로 전달된다.At this time, when the bending direction of the heat exchanger plate of the heat exchanger and the bending direction of the radiant heater are orthogonal to each other, and the heat exchanger surface of the heat exchanger plate and the heat transfer surface of the radiant heater are perpendicular to each other, the radiant heat is efficiently transferred from the radiant heater to the heat exchanger plate installed at a long distance. Is passed to.
이와 같은 구성을 가진 본 발명의 열교환기(3)와 복사 히터(4)가 설치된 냉장고가 작동되면, 압축기에서 냉매를 고온·고압으로 압축시키고, 이는 외부에 설치된 응축기를 통해 응축된 후, 팽창튜브를 통과하면서 저온·저압으로 형성되어 증발기로 유동된다.When the refrigerator equipped with the heat exchanger 3 and the radiant heater 4 of the present invention having such a configuration is operated, the compressor compresses the refrigerant at a high temperature and high pressure in the compressor, which is condensed through an external condenser, and then the expansion tube. It is formed at low temperature and low pressure while flowing through the evaporator.
순환 공기와의 열접촉 면적을 증가시키기 위해 핀이 형성된 튜브 내로 유입된 저온·저압의 액기체 혼합 냉매는 냉장실과 냉동실에서 순환되는 공기와 열교환 되는데, 저압의 액냉매는 상기 순환 공기의 열을 빼앗아 저온에서 기체로 증발되어 압축기로 유동된다.In order to increase the thermal contact area with the circulating air, the low-temperature and low-pressure liquid mixture refrigerant introduced into the finned tube exchanges heat with the air circulated in the refrigerating chamber and the freezing chamber. The low-pressure liquid refrigerant deprives the heat of the circulating air. It is evaporated to gas at low temperature and flows to the compressor.
그리고, 상기 실내 공기는 온도가 떨어져 다시 냉장실과 냉동실로 순환되면서 음식물이 가진 온도 및 습도와 열교환하여 온도와 습도가 상승된다.In addition, the indoor air is circulated back to the refrigerating compartment and the freezing compartment with a drop in temperature, thereby increasing the temperature and humidity by exchanging heat with temperature and humidity of the food.
이와 같은 사이클이 연속적으로 반복되어 음식물이 적정 온도와 습기로 신선하게 유지되는데, 음식물의 습기와 냉장고문의 열림 등으로 인하여 고온 다습한 순환 공기가 증발기로 유입된다.This cycle is repeated continuously to keep the food fresh at the proper temperature and humidity, the hot and humid circulation air is introduced into the evaporator due to the moisture of the food and the opening of the refrigerator door.
상기 다습한 순환 공기에 포함된 수분은 저온의 열교환기(3)의 표면이 노점 이하의 온도가 될 경우 결빙되어 서리로 형성된다.The moisture contained in the humid circulating air freezes when the surface of the low temperature heat exchanger 3 reaches a temperature below the dew point and forms frost.
상기 서리의 제거를 위하여 상기 열교환기(3)의 저면에 소정의 간격을 두고 이격된 복사 히터(4)가 제어기에 의해 가동된다.In order to remove the frost, radiant heaters 4 spaced apart by a predetermined distance from the bottom of the heat exchanger 3 are operated by a controller.
상기 복사 히터(4)의 튜브 내에 삽입된 코일과 고온 냉매 등의 발열로 인하여 상기 복사 히터에서 전자파의 형태로 열이 복사된다.Heat is radiated in the form of electromagnetic waves by the radiant heater due to the heat generated by the coil inserted into the tube of the radiant heater 4 and the high temperature refrigerant.
이와 같은 열은 열에 약한 합성수지로 형성된 상기 열교환기(3)와 직접 접촉되지 않고, 상기 열교환기(3)의 열교환면과 수직방향 또는 소정의 각도를 이루면서 상방으로 복사된다.Such heat is not directly contacted with the heat exchanger 3 formed of synthetic resin, which is weak in heat, and radiated upward while forming a vertical direction or a predetermined angle with the heat exchange surface of the heat exchanger 3.
이 때, 상기 복사 히터의 벤딩 방향과 상기 열교환판의 벤딩 방향이 수평 되지 않고, 소정의 각도로 형성되기 때문에 근거리의 열교환판뿐 아니라 상기 열교환판의 틈새를 따라 복사 히터로부터 원거리에 위치한 열교환판면에도 복사열이 전달된다.At this time, since the bending direction of the radiant heater and the bending direction of the heat exchanger plate are not horizontal and are formed at a predetermined angle, not only the heat exchanger plate in a short distance but also the heat exchanger plate located at a distance from the radiant heater along the gap of the heat exchanger plate. Radiant heat is transferred.
또한 상기 열교환기의 저면에서 형성되는 고온의 복사열은 공기의 온도를 상승시키므로 공기의 부피가 증가되고, 밀도가 감소됨에 따라 공기는 상승되고, 원거리의 열교환판과 열을 교환한다.In addition, the high-temperature radiant heat formed at the bottom of the heat exchanger increases the temperature of the air, so that the volume of the air increases, and as the density decreases, the air rises and exchanges heat with a remote heat exchanger plate.
따라서, 열교환판은 온도 상승으로 표면에 형성된 서리가 제거되고, 열을 방출한 공기는 부피 감소로 밀도가 증가되어 복사 히터근처에서 다시 고온의 복사열을 흡수한 후, 상승되는 자연 대류를 일으킨다.Therefore, the heat exchanger plate removes the frost formed on the surface due to the temperature rise, and the heat-discharged air increases in density due to the decrease in the volume, absorbs the high-temperature radiant heat again near the radiant heater, and causes the rising natural convection.
이와 같은 복사 히터에 의하여 발생되는 열로 인한 자연 대류와 복사만으로도 열교환기와 집접적으로 열 접촉됨 없이 원거리의 열교환면에 형성된 서리가 제거된다.Natural convection and radiation due to heat generated by the radiant heater alone removes frost formed on the heat exchanger surface at a remote heat exchange surface without being in direct thermal contact with the heat exchanger.
상기에서 설명된 바와 같이, 본 발명은 합성 수지로 형성된 열교환기의 작동시 제상을 위하여 복사열과 대류열을 이용하는 복사 히터를 설치하되 상기 히터를 여러번 벤딩하여 사(蛇)형으로 형성함으로써, 복사열량을 증가시켜 제상성능을 향상시킬수 있다.As described above, the present invention by installing a radiant heater using radiant heat and convective heat for defrosting during the operation of the heat exchanger formed of a synthetic resin, by bending the heater several times to form a four-shaped radiant heat, Increase the defrosting performance can be improved.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000019319A KR100357109B1 (en) | 2000-04-12 | 2000-04-12 | A radiative heater of plastic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000019319A KR100357109B1 (en) | 2000-04-12 | 2000-04-12 | A radiative heater of plastic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010095871A KR20010095871A (en) | 2001-11-07 |
| KR100357109B1 true KR100357109B1 (en) | 2002-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020000019319A KR100357109B1 (en) | 2000-04-12 | 2000-04-12 | A radiative heater of plastic condenser |
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| Country | Link |
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| KR (1) | KR100357109B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01203880A (en) * | 1988-02-08 | 1989-08-16 | Matsushita Refrig Co Ltd | Defrosting device for cooler |
| JPH0331680A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Refrig Co Ltd | Defrosting device of evaporator for refrigerating device |
| JPH0336480A (en) * | 1989-06-30 | 1991-02-18 | Showa Alum Corp | Heat exchanger |
| JPH04236086A (en) * | 1991-01-19 | 1992-08-25 | Sharp Corp | Structure of cooler for freezing refrigerator |
-
2000
- 2000-04-12 KR KR1020000019319A patent/KR100357109B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01203880A (en) * | 1988-02-08 | 1989-08-16 | Matsushita Refrig Co Ltd | Defrosting device for cooler |
| JPH0331680A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Refrig Co Ltd | Defrosting device of evaporator for refrigerating device |
| JPH0336480A (en) * | 1989-06-30 | 1991-02-18 | Showa Alum Corp | Heat exchanger |
| JPH04236086A (en) * | 1991-01-19 | 1992-08-25 | Sharp Corp | Structure of cooler for freezing refrigerator |
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| Publication number | Publication date |
|---|---|
| KR20010095871A (en) | 2001-11-07 |
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