KR100620025B1 - Adiabatic structure of refrigerator cabinet using micro hollow sphere - Google Patents

Adiabatic structure of refrigerator cabinet using micro hollow sphere Download PDF

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Publication number
KR100620025B1
KR100620025B1 KR1020040108418A KR20040108418A KR100620025B1 KR 100620025 B1 KR100620025 B1 KR 100620025B1 KR 1020040108418 A KR1020040108418 A KR 1020040108418A KR 20040108418 A KR20040108418 A KR 20040108418A KR 100620025 B1 KR100620025 B1 KR 100620025B1
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South Korea
Prior art keywords
refrigerator cabinet
cabinet
refrigerator
insulation structure
foam
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KR1020040108418A
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Korean (ko)
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KR20060069744A (en
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홍상의
김경도
김영배
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엘지전자 주식회사
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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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • 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
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

본 발명은 냉장고 캐비넷의 외면과; 미세중공구체의 분말과 에이비에스 수지를 혼합하여 성형된 냉장고 캐비넷의 내면과; 상기 냉장고 캐비넷의 외면과 내면 사이에 형성된 발포폼을; 포함하여 구성함으로써, 보다 향상된 단열 성능을 갖는 냉장고 캐비넷의 단열 구조를 제공한다. The present invention is the outer surface of the refrigerator cabinet; An inner surface of the refrigerator cabinet formed by mixing the powder of the microspheres and the ABS resin; Foam foam formed between the outer surface and the inner surface of the refrigerator cabinet; By including, it provides a heat insulating structure of the refrigerator cabinet having more improved heat insulating performance.

냉장고 캐비넷, 단열 구조, 미세중공구체Refrigerator Cabinet, Insulation Structure, Micro Hollow Sphere

Description

미세중공구체를 이용한 냉장고 캐비넷의 단열 구조{ADIABATIC STRUCTURE OF REFRIGERATOR CABINET USING MICRO HOLLOW SPHERE} Insulation structure of refrigerator cabinet using micro hollow spheres {ADIABATIC STRUCTURE OF REFRIGERATOR CABINET USING MICRO HOLLOW SPHERE}

도1은 냉장고 캐비넷의 사시도.1 is a perspective view of a refrigerator cabinet;

도2는 도1의 절단선 X-X에 따른 종래의 단열 구조의 단면도.2 is a cross-sectional view of a conventional heat insulation structure according to the cutting line X-X of FIG.

도3은 도1의 절단선 X-X에 따른 본 발명의 제1실시예에 따른 단열 구조의 단면도.3 is a cross-sectional view of the heat insulation structure according to the first embodiment of the present invention according to the cutting line X-X of FIG.

도4는 도1의 절단선 X-X에 따른 본 발명의 제2실시예에 따른 단열 구조의 단면도.4 is a cross-sectional view of the heat insulation structure according to the second embodiment of the present invention according to the cutting line X-X of FIG.

도5는 도1의 절단선 X-X에 따른 본 발명의 제3실시예에 따른 단열 구조의 단면도.FIG. 5 is a cross-sectional view of the heat insulation structure according to the third embodiment of the present invention according to the cutting line X-X of FIG.

** 도면의 주요 부분에 대한 부호의 설명 ** ** Description of symbols for the main parts of the drawing **

1: 냉장고 캐비넷 10: 캐비넷 외면1: refrigerator cabinet 10: cabinet exterior

20: 캐비넷 내면 30: 캐비넷 단열부20: Inside cabinet 30: Cabinet insulation

120: 미세중공구체의 분말 첨가된 캐비넷 내면120: inside the powdered cabinet of the microspheres

110',120': 미세중공구체의 분말 코팅면110 ', 120': Powder coated surface of microspheres

본 발명은 냉장고 캐비넷의 단열 구조에 관한 것으로, 보다 상세하게는 냉장고 캐비넷의 단열부를 형성함에 있어서 단열 효과를 향상시킴과 동시에 단열 두께를 얇게 함으로써 냉장고 캐비넷의 내용적을 증대시키는 미세중공구체를 이용한 냉장고 캐비넷의 단열 구조에 관한 것이다. The present invention relates to a heat insulation structure of the refrigerator cabinet, and more particularly, to forming a heat insulation portion of the refrigerator cabinet. It relates to the thermal insulation structure of.

냉장고는 식품을 저온 저장하기 위한 것으로, 식품을 수납하도록 냉장실이나 냉동실 등과 같은 수납 공간을 형성하는 캐비넷과, 냉장실과 냉동실을 개폐하는 도어와, 냉매 사이클로 구성되어 수납된 식품을 저온 상태로 유지하는 기계부로 구성된다. The refrigerator is for storing food at low temperature, and includes a cabinet for forming a storage space such as a refrigerator compartment or a freezer compartment for storing food, a door for opening and closing the refrigerator compartment and the freezer compartment, and a machine for keeping the stored food at a low temperature state. It consists of wealth.

여기서, 캐비넷은 외형을 형성하는 외면과 수납 공간을 형성하는 내면 사이에 단열재가 충전되어 보냉 효과를 증대시킨다. 최근에는 가볍고 단열성이 우수한 폴리우레탄이 단열재의 재질로 사용되고 있으며, 조립된 상태의 캐비넷의 내면과 외면 사이에 폴리우레탄 발포액을 주입한 후 가열하여 발포시킴으로써 캐비넷 내부에 단열재를 충전하게 된다. Here, the cabinet is filled with a heat insulating material between the outer surface forming the outer shape and the inner surface forming the storage space to increase the cold effect. In recent years, light and excellent insulation polyurethane is used as a material of the heat insulating material, the polyurethane foam liquid is injected between the inner surface and the outer surface of the cabinet in the assembled state by heating and foaming to fill the insulation inside the cabinet.

도1은 냉장고 캐비넷의 사시도, 도2는 도1의 절단선 X-X에 따른 종래의 단열 구조의 단면도이다. 1 is a perspective view of a refrigerator cabinet, and FIG. 2 is a sectional view of a conventional heat insulation structure according to the cutting line X-X of FIG.

도면에 도시된 바와 같이, 냉장고 캐비넷(1)의 단열 구조는, 외부의 충격 등으로부터 보호하도록 형성된 캐비넷 외면(10)과, 식료품 등이 수용되는 캐비넷 내면(20)과, 캐비넷 외면(10)과 캐비넷 내면(10) 사이에 냉장 및 냉동 효율을 향상시키도록 형성되는 캐비넷 단열부(30)로 구성된다. As shown in the figure, the heat insulation structure of the refrigerator cabinet 1 includes a cabinet outer surface 10 formed to protect against external shocks, a cabinet inner surface 20 in which food products, etc. are accommodated, a cabinet outer surface 10 and It is composed of a cabinet heat insulating portion 30 formed between the cabinet inner surface 10 to improve the refrigeration and freezing efficiency.

상기 캐비넷 외면(10)은 외부의 충격 등으로터 보호하도록 높은 강성과 내충격성을 갖는 철판으로 형성되고, 상기 캐비넷 내면(20)은 에이비에스(ABS) 수지로 압출 성형되어 원하는 형상으로 가공된다. The cabinet outer surface 10 is formed of an iron plate having high rigidity and impact resistance to protect from external impact, etc., the cabinet inner surface 20 is extruded with ABS resin and processed into a desired shape.

상기 캐비넷 단열부(30)는 냉동 사이클에 의하여 냉각되는 냉장고 내부의 냉장 및 냉동 효율을 증대시키기 위하여 형성되는 것으로, 주로 폴리우레탄 발포액을 반응시켜 발포시킨 폴리우레탄 발포폼으로 충진 형성된다. The cabinet heat insulating part 30 is formed to increase the refrigerating and freezing efficiency of the inside of the refrigerator cooled by the refrigeration cycle, and is mainly formed by filling the polyurethane foam foamed by reacting the polyurethane foam.

도면중 미설명 부호인 20a는 캐비넷 내면(20)에 식품 보관용 선반등을 올려 놓도록 형성된 돌기이다. Unexplained reference numeral 20a in the drawing is a protrusion formed to put a shelf for storing food on the cabinet inner surface 20.

상기와 같이 구성된 종래의 냉장고 캐비넷(1)은 전적으로 폴리우레탄 발포폼으로 충진 형성된 캐비넷 단열부(30)에 의하여 단열이 이루어지므로, 냉장고 캐비넷(1)의 단열 효과를 향상시키기 위해서는 캐비넷 단열부(30)의 두께가 과도하게 두꺼워지는 문제점과, 이로 인하여 동일한 외형 크기를 갖는 냉장고 캐비넷에 대하여 식품 등을 수용하는 내부 용적량이 작아지는 문제점을 갖고 있었다. Since the conventional refrigerator cabinet 1 configured as described above is insulated by the cabinet heat insulating part 30 formed entirely filled with polyurethane foam, the cabinet heat insulating part 30 to improve the heat insulating effect of the refrigerator cabinet 1. ) Has an excessively thick thickness, and thereby has a problem that the internal volume of food, etc. for the refrigerator cabinet having the same outer size is reduced.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하고자 안출된 것으로서, 냉장고 캐비넷의 단열부를 형성함에 있어서 단열 효과를 향상시킴과 동시에 단열 구조의 두께를 얇게 형성함으로써 냉장고 캐비넷 내의 용적량을 증대시키는 미세중공구체를 이용한 캐비넷의 단열 구조를 제공함을 그 목적으로 한다. The present invention has been made to solve the problems of the prior art as described above, fine hollow sphere to increase the volume of the inside of the refrigerator cabinet by forming a thin thickness of the insulation structure while improving the heat insulation effect in forming the heat insulating portion of the refrigerator cabinet. It is an object of the present invention to provide a thermal insulation structure of the cabinet using.

본 발명은 상술한 바와 같은 목적을 달성하기 위하여, 냉장고 캐비넷의 외면 과; 미세중공구체(微細中空球體) 분말이 첨가되어 에이비에스 수지으로 성형된 냉장고 캐비넷의 내면과; 상기 냉장고 캐비넷의 외면과 내면 사이에 형성된 발포폼을; 포함하여 구성된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조를 제공한다.The present invention is to achieve the object as described above, the outer surface of the refrigerator cabinet; An inner surface of a refrigerator cabinet in which a fine hollow sphere powder is added and molded into an ABS resin; Foam foam formed between the outer surface and the inner surface of the refrigerator cabinet; It provides an insulating structure of the refrigerator cabinet, characterized in that configured to include.

이는, 종래의 냉장고 캐비넷의 단열 구조는 상기 냉장고 캐비넷의 내면과 외면 사이에 형성된 발포폼에 전적으로 의지하여 냉장고 캐비넷을 단열하도록 구성되었으나, 본 발명에서는 미세중공구체의 분말을 냉장고 캐비넷의 내면을 형성하는 에이비에스 수지에 첨가하여 상기 냉장고 캐비넷의 내면을 형성함으로써, 상기 발포폼 뿐만 아니라 상기 냉장고 캐비넷의 내면에서도 단열이 이루어져 보다 향상된 단열 효과를 얻을 수 있도록 하기 위함이다. It is a heat insulating structure of the conventional refrigerator cabinet is configured to insulate the refrigerator cabinet entirely by relying on the foam foam formed between the inner surface and the outer surface of the refrigerator cabinet, in the present invention, the powder of the micro hollow sphere to form the inner surface of the refrigerator cabinet By adding to the ABS resin to form an inner surface of the refrigerator cabinet, not only the foam foam but also the inner surface of the refrigerator cabinet to achieve a more improved thermal insulation effect.

여기서, 상기 미세중공구체의 입자의 크기는 100㎛이하로 형성됨으로써 에이비에스(ABS) 수지의 강도를 저하시키지 않으면서 단열 효과를 향상시킬 수 있게 된다. Here, the size of the particles of the microspheres can be formed to less than 100㎛ can improve the thermal insulation effect without lowering the strength of the ABS resin (ABS).

그리고, 상기 미세중공구체는 백색의 실리카(SiO2)를 주성분으로 하는 세라믹 계열의 재료로 형성되고, 1500℃ 내지 2000℃에서 열적으로 안정된 상태를 유지하는 중공구체인 것이 바람직하다. 이는, 발포폼을 형성하는 과정에서 고온 고압에도 충분히 견딜 수 있도록 하기 위함이다. In addition, the microspheres are preferably formed of a ceramic-based material mainly composed of white silica (SiO 2 ), and are hollow spheres that maintain a thermally stable state at 1500 ° C. to 2000 ° C. This is to sufficiently endure high temperature and high pressure in the process of forming the foam.

한편, 단열 효과를 향상시키기 위한 미세중공구체의 분말은 상기 냉장고 캐비넷의 내면을 형성하는 에이비에스 수지에 혼합되어 성형될 수도 있지만, 상기 미세중공구체의 분말을 우레탄계 도료와 혼합하여 만들어진 도료액을 냉장고 캐비넷 의 단열 구조를 이루는 적층 구조의 어느 하나의 적층면에 도포함으로써 단열 효과를 향상시킬 수도 있다. On the other hand, although the powder of the microspheres for improving the thermal insulation effect may be mixed and molded into the ABS resin forming the inner surface of the refrigerator cabinet, the coating liquid made by mixing the powder of the microspheres with a urethane-based paint refrigerator The heat insulation effect can also be improved by apply | coating to any laminated surface of the laminated structure which comprises the heat insulation structure of a cabinet.

이 때에도 마찬가지로, 상기 미세중공구체의 입자의 크기는 100㎛이하로 형성된 것이 도료액의 균일성을 확보하는 데 유리하다. 그리고, 백색의 실리카(SiO2)를 주성분으로 하는 세라믹 계열의 재료로 1500℃ 내지 2000℃에서 열적으로 안정된 상태를 유지하는 중공구체로 상기 미세중공구체를 형성하는 것이 상기 냉장고 캐비넷의 발포폼을 형성하는 고온 고압의 발포 공정에서도 원활히 견딜수 있다는 측면에서 바람직하다.At this time as well, the size of the particles of the microspheres is formed to be less than 100㎛ it is advantageous to ensure the uniformity of the coating liquid. In addition, forming the micro-hollow sphere with a hollow sphere maintaining a thermally stable state at 1500 ° C. to 2000 ° C. with a ceramic-based material mainly composed of white silica (SiO 2 ) forms a foam of the refrigerator cabinet. It is preferable in terms of being able to withstand smoothly even in a high temperature and high pressure foaming process.

또한, 상기 도료액은 상기 미세중공구체의 분말과 상기 우레탄계 도료를 1:5 내지 1:10의 중량비 혼합비율로 혼합된다. 상기 혼합 비율보다 상기 미세중공구체의 분말의 양이 적어지면 우수한 단열 효과를 얻기 어려우며, 상기 혼합 비율보다 상기 미세중공구체의 분말의 양이 많아지면 도료액의 균질성을 확보하는 데 불리하기 때문이다. In addition, the coating liquid is mixed with the powder of the microspheres and the urethane-based paint in a weight ratio mixing ratio of 1: 5 to 1:10. When the amount of the powder of the microspheres is smaller than the mixing ratio, it is difficult to obtain an excellent heat insulating effect, and when the amount of the powder of the microspheres is larger than the mixing ratio, it is disadvantageous to secure the homogeneity of the coating liquid.

그리고, 상기 도료액은 상기 냉장고 캐비넷의 외면의 안쪽면이나, 상기 냉장고 캐비넷의 내면의 안쪽면 중 어느 하나 이상의 면에 도포된 것이 효과적이다.In addition, the coating liquid is effectively applied to any one or more of the inner surface of the outer surface of the refrigerator cabinet, or the inner surface of the inner surface of the refrigerator cabinet.

이하, 첨부 도면을 참조하여 본 발명의 일 실시예에 관하여 상세히 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

도3은 도1의 절단선 X-X에 따른 본 발명의 제1실시예에 따른 단열 구조의 단면도로서, 본 발명의 제1실시예에 따른 냉장고 캐비넷의 단열 구조는, 외부의 충격 에 견딜수 있도록 높은 강도를 갖는 철재로 형성된 캐비넷 외면(10)과, 미세중공구체의 분말과 에이비에스 (Acrylonitrile-Butadiene-Styrene; ABS) 수지를 혼합하여 성형된 냉장고 캐비넷의 내면(120)과, 냉장 및 냉동 효율을 향상시키도록 캐비넷 외면(10)과 캐비넷 내면(120) 사이에 폴리우레탄 발포 플라스틱으로 발포 형성된 발포폼(30)으로 구성된다. 3 is a cross-sectional view of the heat insulation structure according to the first embodiment of the present invention according to the cutting line XX of Figure 1, the heat insulation structure of the refrigerator cabinet according to the first embodiment of the present invention, high strength to withstand external impact The cabinet outer surface 10 formed of an iron having an inner portion, and the inner surface 120 of the refrigerator cabinet formed by mixing a powder of fine hollow spheres and ABS (Acrylonitrile-Butadiene-Styrene; ABS) resin, and improves the refrigeration and freezing efficiency It is composed of a foam foam 30 formed of a polyurethane foamed plastic between the cabinet outer surface 10 and the cabinet inner surface 120 to be made.

상기 캐비넷 내면(20)은 단열 특성이 우수한 것으로 알려진 미세중공구체(微細中空球體)의 분말을 기존의 에이비에스 플라스틱 수지와 혼합한 후 성형 가공된 미세중공체 분말 첨가 에이비에스 수지로 형성된다. The cabinet inner surface 20 is formed of a microporous powder-added ABS resin, which is molded after mixing a powder of a microporous sphere known to have excellent thermal insulation properties with an existing ABS plastic resin.

여기서, 미세중공구체는 그 구성 물질이 백색의 실리카(SiO2)를 주성분으로 하는 세라믹 계열의 재질로 입자의 크기가 100㎛이하로 형성되며, 1500℃ 내지 2000℃에서도 열적으로 안정된 상태를 유지되도록 형성된다. 미세중공구체의 크기가 제한되는 것은 캐비넷 내면의 강도를 충분히 확보함과 동시에 우수한 단열 특성을 동시에 확보하기 위함이며, 고온에서도 열적으로 안정된 상태를 유지하는 것은 고온 고압의 발포폼(30)의 성형 공정에서도 견딜수 있도록 하기 위함이다. Here, the microspheres are ceramic-based materials whose constituent material is mainly composed of white silica (SiO 2 ), and the particle size is formed to be 100 μm or less, and the thermal stability is maintained at 1500 ° C. to 2000 ° C. Is formed. The size of the micro hollow spheres is limited in order to ensure sufficient strength of the inner surface of the cabinet and at the same time to ensure excellent thermal insulation properties, and to maintain a thermally stable state even at a high temperature is a process of forming the foam 30 of high temperature and high pressure. This is to withstand even.

상기와 같이, 냉장고 캐비넷의 내면(120)에도 단열 효과를 갖는 미세중공구체를 포함하여 구성됨으로써, 종래보다 더 작은 폭(B)의 발포폼(30)으로도, 보다 우수한 단열 효과를 갖는 냉장고 캐비넷의 단열 구조를 만들 수 있게 된다. 이는, 냉장고 캐비넷의 단열 구조의 두께를 줄일 수 있게 되는 것을 의미하므로, 동일한 부피의 냉장고 캐비넷에 대하여 식품 등을 수용할 수 있는 용적량이 더욱 증대되는 장점을 갖게 된다. As described above, the inner surface 120 of the refrigerator cabinet is also configured to include a micro-hollow sphere having a heat insulating effect, even with a foam (30) having a smaller width (B) than the conventional refrigerator cabinet having a better heat insulating effect It is possible to make a thermal insulation structure of. This means that the thickness of the heat insulation structure of the refrigerator cabinet can be reduced, and thus, the volume of food containers, etc., can be further increased in the same volume of the refrigerator cabinet.

도4는 도1의 절단선 X-X에 따른 본 발명의 제2실시예에 따른 단열 구조의 단면도로서, 본 발명의 제2실시예에 따른 냉장고 캐비넷의 단열 구조는, 외부의 충격에 견딜수 있도록 높은 강도를 갖는 철재로 형성된 캐비넷 외면(10)과, 에이비에스 수지로 형성되고 그 안쪽면에 미세중공구체의 분말을 포함한 도료액(120')으로 코팅된 냉장고 캐비넷의 내면(120)과, 냉장 및 냉동 효율을 향상시키도록 캐비넷 외면(10)과 캐비넷 내면(20) 사이에 폴리우레탄 발포 플라스틱으로 발포 형성된 발포폼(30)으로 구성된다. Figure 4 is a cross-sectional view of the heat insulation structure according to the second embodiment of the present invention according to the cutting line XX of Figure 1, the heat insulation structure of the refrigerator cabinet according to the second embodiment of the present invention, high strength to withstand external impact Cabinet inner surface 10 formed of iron having a, and the inner surface 120 of the refrigerator cabinet formed of ABS resin and coated with a coating liquid 120 'containing the powder of the microspheres on the inner surface, refrigeration and freezing The foam foam 30 is formed of a foamed polyurethane foam between the cabinet outer surface 10 and the cabinet inner surface 20 to improve the efficiency.

상기 도료액(120')은 백색의 실리카를 주성분으로 하는 세라믹 계열의 재질로 100㎛이하의 크기를 가지며 1500℃ 내지 2000℃에서도 열적으로 안정된 상태를 유지하는 미세중공구체의 분말을 우레탄계 도료와 중량비 1:5 내지 1:10의 비율로 혼합하여 만들어진다. 향상된 단열 효과를 갖는 미세중공구체의 분말이 함유된 도료액(120')을 캐비넷 내면(20)의 안쪽면에 도포함으로써 보다 높은 단열 효과를 갖는 냉장고 캐비넷의 단열 구조를 얻을 수 있게 된다. 도2의 종래의 냉장고 캐비넷의 단열 구조와 대비하여 볼 때, 본 발명에 따른 제2실시예에 따른 냉장고 캐비넷의 단열 구조는 동일한 단열 효과를 갖는 경우라면 발포폼(30)의 두께(C)가 종래의 두께(A)보다 더 작아질 수 있게 된다. The paint liquid 120 'is a ceramic-based material mainly composed of white silica, having a size of 100 μm or less, and a powder of fine hollow spheres having a thermally stable state at 1500 ° C. to 2000 ° C. with a urethane-based paint. It is made by mixing in a ratio of 1: 5 to 1:10. By applying the coating liquid 120 ′ containing the powder of the micro-hollow sphere having an improved thermal insulation effect to the inner surface of the cabinet inner surface 20, it is possible to obtain a thermal insulation structure of the refrigerator cabinet having a higher thermal insulation effect. Compared with the heat insulation structure of the conventional refrigerator cabinet of FIG. 2, if the heat insulation structure of the refrigerator cabinet according to the second embodiment of the present invention has the same heat insulation effect, the thickness C of the foam foam 30 is It can be made smaller than the conventional thickness (A).

한편, 도5에 도시된 바와 같이, 제2실시예의 도료액(120')과 동일하게 제조되는 도료액(110')을 캐비넷 외면(10)의 안쪽면에 도포하여 단열 효과를 향상시킬 수도 있다. On the other hand, as shown in Figure 5, the coating liquid 110 'manufactured in the same manner as the coating liquid 120' of the second embodiment may be applied to the inner surface of the cabinet outer surface 10 to improve the thermal insulation effect. .

본 발명에 따른 냉장고 캐비넷의 단열 구조는 김치 냉장고나 냉동고를 포함하는 다양한 용도로 널리 활용될 수 있을 것이다. 이상에서는 본 발명의 바람직한 실시예를 예시적으로 설명하였으나, 본 발명의 범위는 이와 같은 특정 실시예에만 한정되는 것은 아니며, 특허청구범위에 기재된 범주 내에서 적절히 변경 가능한 것이다. The insulation structure of the refrigerator cabinet according to the present invention may be widely used for various uses including a kimchi refrigerator or a freezer. Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

이상 설명한 바와 같이, 본 발명에 따르면, 냉장고 캐비넷의 외면과; 미세중공구체의 분말과 에이비에스 수지를 혼합하여 성형된 냉장고 캐비넷의 내면과; 상기 냉장고 캐비넷의 외면과 내면 사이에 형성된 발포폼을; 포함하여 구성함으로써, 보다 향상된 단열 성능을 갖는 냉장고 캐비넷의 단열 구조를 제공한다. As described above, according to the present invention, the outer surface of the refrigerator cabinet; An inner surface of the refrigerator cabinet formed by mixing the powder of the microspheres and the ABS resin; Foam foam formed between the outer surface and the inner surface of the refrigerator cabinet; By including, it provides a heat insulating structure of the refrigerator cabinet having more improved heat insulating performance.

또한 본 발명은, 미세중공구체의 분말을 이용함으로써 단열 효과를 크게 향상시킴으로써, 동일한 단열 성능을 얻고자 할 때, 냉장고 캐비넷의 두께를 더 얇게 구성할 수 있게 되므로, 냉장고 캐비넷의 단열 구조 내의 발포폼을 보다 얇게 형성할 수 있게 되어 단열 구조를 제조하는 비용을 절감할 수 있도록 함과 동시에, 냉장고 캐비넷 내에 식품 등을 보관할 수 있는 공간을 보다 넓게 확보할 수 있게 된다. In addition, the present invention, by using the powder of the micro-hollow sphere to greatly improve the heat insulation effect, when the same heat insulating performance can be obtained, the thickness of the refrigerator cabinet can be configured to be thinner, the foam foam in the heat insulation structure of the refrigerator cabinet It is possible to form a thinner to reduce the cost of manufacturing the thermal insulation structure, and at the same time it is possible to secure a wider space for storing food and the like in the refrigerator cabinet.

Claims (10)

냉장고 캐비넷의 외면과;An outer surface of the refrigerator cabinet; 미세중공구체의 분말과 에이비에스(ABS) 수지를 혼합하여 성형된 냉장고 캐비넷의 내면과;An inner surface of the refrigerator cabinet formed by mixing the powder of the microspheres and the ABS resin; 상기 냉장고 캐비넷의 외면과 내면 사이에 형성된 발포폼을;Foam foam formed between the outer surface and the inner surface of the refrigerator cabinet; 포함하여 구성된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.Insulation structure of a refrigerator cabinet, characterized in that configured to include. 제 1항에 있어서,The method of claim 1, 상기 미세중공구체의 입자의 크기는 100㎛이하로 형성된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.Insulation structure of the refrigerator cabinet, characterized in that the size of the particles of the micro-hollow sphere is formed to less than 100㎛. 제 2항에 있어서,The method of claim 2, 상기 미세중공구체는 백색의 실리카(SiO2)를 주성분으로 하는 세라믹 계열의 재료로 형성되고, 1500℃ 내지 2000℃에서 열적으로 안정된 상태를 유지하는 중공구체인 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The microspheres are formed of a ceramic-based material mainly composed of white silica (SiO 2 ), and the heat insulation structure of the refrigerator cabinet, characterized in that the hollow sphere to maintain a thermally stable state at 1500 ℃ to 2000 ℃. 제 3항에 있어서,The method of claim 3, wherein 상기 냉장고 캐비넷의 외면은 강재로 형성되고,The outer surface of the refrigerator cabinet is formed of steel, 상기 발포폼은 폴리우레탄으로 발포되어 형성된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The foam is an insulating structure of the refrigerator cabinet, characterized in that formed by foaming with polyurethane. 냉장고 캐비넷의 외면과, 냉장고 캐비넷의 내면과, 상기 냉장고 캐비넷의 외면과 내면 사이에 형성된 발포폼을 포함하는 냉장고 캐비넷의 단열 구조에 있어서,In the heat insulation structure of the refrigerator cabinet comprising an outer surface of the refrigerator cabinet, the inner surface of the refrigerator cabinet, and the foam formed between the outer surface and the inner surface of the refrigerator cabinet, 미세중공구체의 분말과 우레탄계 도료를 혼합한 도료액을 상기 냉장고 캐비넷의 외면과 상기 냉장고 캐비넷의 내면 사이의 어느 하나의 적층면에 도포한 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.A heat-insulating structure of a refrigerator cabinet, wherein a coating liquid containing a powder of fine hollow spheres and a urethane-based coating material is applied to any one laminated surface between an outer surface of the refrigerator cabinet and an inner surface of the refrigerator cabinet. 제 5항에 있어서,The method of claim 5, 상기 미세중공구체의 입자의 크기는 100㎛이하로 형성된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.Insulation structure of the refrigerator cabinet, characterized in that the size of the particles of the micro-hollow sphere is formed to less than 100㎛. 제 6항에 있어서,The method of claim 6, 상기 미세중공구체는 백색의 실리카(SiO2)를 주성분으로 하는 세라믹 계열의 재료로 형성되고, 1500℃ 내지 2000℃에서 열적으로 안정된 상태를 유지하는 중공구체인 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The microspheres are formed of a ceramic-based material mainly composed of white silica (SiO 2 ), and the heat insulation structure of the refrigerator cabinet, characterized in that the hollow sphere to maintain a thermally stable state at 1500 ℃ to 2000 ℃. 제 7항에 있어서,The method of claim 7, wherein 상기 도료액은 상기 미세중공구체의 분말과 상기 우레탄게 도료를 1:5 내지 1:10의 중량비 혼합비율로 혼합한 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The paint solution is a heat insulating structure of a refrigerator cabinet, characterized in that the powder of the fine hollow spheres and the urethane crab paint is mixed in a weight ratio of 1: 5 to 1:10. 제 8항에 있어서,The method of claim 8, 상기 도료액은 상기 냉장고 캐비넷의 외면의 안쪽면에 도포된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The paint solution is a heat insulating structure of the refrigerator cabinet, characterized in that applied to the inner surface of the outer surface of the refrigerator cabinet. 제 8항에 있어서,The method of claim 8, 상기 도료액은 상기 냉장고 캐비넷의 내면의 안쪽면에 도포된 것을 특징으로 하는 냉장고 캐비넷의 단열 구조.The coating liquid is an insulating structure of the refrigerator cabinet, characterized in that applied to the inner surface of the inner surface of the refrigerator cabinet.
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