KR20010068518A - Core with slant edges useful for vacuum insulating panel, and vacuum insulating panel made by the same - Google Patents

Core with slant edges useful for vacuum insulating panel, and vacuum insulating panel made by the same Download PDF

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Publication number
KR20010068518A
KR20010068518A KR1020000000467A KR20000000467A KR20010068518A KR 20010068518 A KR20010068518 A KR 20010068518A KR 1020000000467 A KR1020000000467 A KR 1020000000467A KR 20000000467 A KR20000000467 A KR 20000000467A KR 20010068518 A KR20010068518 A KR 20010068518A
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South Korea
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core
vacuum insulation
insulation panel
insulating panel
vacuum
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KR1020000000467A
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Korean (ko)
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김영우
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구자홍
엘지전자 주식회사
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Priority to KR1020000000467A priority Critical patent/KR20010068518A/en
Publication of KR20010068518A publication Critical patent/KR20010068518A/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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • 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
    • F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
    • F16S1/00—Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members

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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)
  • Refrigerator Housings (AREA)

Abstract

PURPOSE: A core with slant edge and a vacuum thermal insulating panel using the same are provided to improve the thermal conduction of a parallel face of a core and to reduce the voids and dewing of the edges of the core by forming a slant face of the core in an acute angle with an attached face between the vacuum thermal insulating panel and an external plate of refrigerating equipment. CONSTITUTION: A core for a vacuum thermal insulating panel is attached to an external plate of refrigerating equipment. A slant face of the core forms an acute angle with an attached face between the vacuum thermal insulating panel and the external panel. The acute angle is about 30 to 55 degrees. Due to the edge shape of the core, thermal conduction is dispersed through an aluminum film and the loss of heat is reduced. Further, due to the acute angle of the vacuum thermal insulating panel, polyurethane foam liquid smoothly flows and the formation of voids is prevented.

Description

경사진 가장자리 구조를 갖는 진공단열판넬용 코어 및 이를 이용한 진공단열판넬{CORE WITH SLANT EDGES USEFUL FOR VACUUM INSULATING PANEL, AND VACUUM INSULATING PANEL MADE BY THE SAME}CORE WITH SLANT EDGES USEFUL FOR VACUUM INSULATING PANEL, AND VACUUM INSULATING PANEL MADE BY THE SAME}

본발명은 경사진 가장자리 구조를 갖는 진공단열판넬에 관한 것이다. 구체적으로 본발명은 냉각기기의 외판에 부착된 진공단열판넬의 테두리중 상기 외판에 비평행면이 진공단열판넬과 외판의 부착면에 대해 예각을 이루는 구조를 갖는 진공단열판넬용 코어와 진공단열판넬에 관한 것이다.The present invention relates to a vacuum insulation panel having an inclined edge structure. Specifically, the present invention relates to a vacuum insulation panel core and a vacuum insulation panel having a structure in which a non-parallel plane forms an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate among the edges of the vacuum insulation panel attached to the outer plate of the cooling machine. It is about.

일반적으로 진공단열재의 단열성(K-인자값)은 개방셀 코어재로 채워져 있는 면부분값으로 나타내지만, 실제는 진공효과가 없는 라미네이트 필름이 열융착되어 있는 테두리부에서의 단열성 저하까지 고려해야한다. 따라서, 진공단열재를 냉장고에 적용할 경우에 가능한 히트 브리지가 적도록 진공단열재 판넬을 설계하여야 한다.In general, the heat insulating property (K-factor value) of the vacuum insulation material is expressed as the surface part value filled with the open cell core material, but in reality, the insulation property at the edge portion where the laminate film without the vacuum effect is heat-sealed should be considered. Therefore, the vacuum insulator panel should be designed to have as few heat bridges as possible when the vacuum insulator is applied to the refrigerator.

진공단열판넬(VIP)는 코어재를 알루미늄 필름으로 포장하여 진공후 완전히 밀봉한 상태의 판넬을 말한다(도 1 과 5). 냉장고상에서 진공단열판넬의 적용은 외판혹은 단열벽면의 한쪽 내벽에 진공단열판넬를 부착하고 그 벽면사이에 폴리우레탄폼원액을 충진하여 단열효율을 높이는 것이다(도 2). 도 4중 a)면의 알루미늄을 통하여 방출되는 열과 폴리우레탄폼원액이 채워질때 원액의 흐름속도에 따라 진공단열판넬의 모서리 부위에 공극이 발생하여 이 부위에서 K-인자값이 높고(도 3), 진공단열판넬이 부착된 가장자리면을 따라 이슬맺힘현상이 발생하기 쉽다.The vacuum insulation panel (VIP) refers to a panel in which the core material is wrapped in an aluminum film and completely sealed after vacuum (FIGS. 1 and 5). Application of the vacuum insulation panel on the refrigerator is to attach the vacuum insulation panel to one inner wall of the outer plate or the insulation wall and to fill the polyurethane foam stock solution between the walls to increase the insulation efficiency (Fig. 2). When the heat released through the aluminum on the surface a) and the polyurethane foam stock solution are filled in the pores in the corners of the vacuum insulation panel according to the flow rate of the stock solution, the K-factor value is high in this region (FIG. 3). In addition, dew condensation is likely to occur along the edge of the vacuum insulation panel.

종래의 직각 모서리 구조를 갖는 진공단열판넬은 진공단열판넬의 알루미늄 필름을 통하여 열누설이 용이하며, 특히 냉장고에서 진공단열판넬모서리의 4면을 통한 열손실은 본래의 진공단열판넬부착부위의 K-인자보다 약 2.5 내지 3배정도 더 크므로 열손실을 크다. 또한 냉장고벽면에서 진공단열판넬부착 부위의 알루미늄 외막을 통한 열누설로 이슬맺힘현상이 발생하고, 폴리우레탄폼원액주입시 원액의 흐름성에 장애요인이 되어 흐름방향에서 먼쪽의 모서리에 폴리우레탄폼원액의 충진이 불완전할 수 있고, 모서리부위에 공극현상이 발생하여 K-인자값이 증가 및 이슬맺힘현상이 발생한다. 따라서, 진공단열판넬의 모서리부의 구조에 따라 냉장고상에서 전체적인 k-인자값에는 영향이 거의 없지만 국부적으로 열누설 및 폴리우레탄폼흐름성장애등의 영향으로 소비전력증가 및 이슬맺힘현상이 나타날 수 있다.Conventional vacuum insulated panel with right angle edge structure is easy to heat leakage through aluminum film of vacuum insulated panel, especially heat loss through four sides of vacuum insulated panel corner in refrigerator is K- of original vacuum insulated panel attachment part. The heat loss is large because it is about 2.5 to 3 times larger than the factor. In addition, dew leakage may occur due to heat leakage through the aluminum outer film of the vacuum insulation panel attaching part on the refrigerator wall surface, and when the polyurethane foam solution is injected, it is an obstacle to the flowability of the stock solution. The filling may be incomplete and voids may occur at the edges, resulting in an increase in the K-factor value and dew formation. Accordingly, the k-factor value of the vacuum insulation panel has little influence on the overall k-factor value on the refrigerator, but power consumption and dewiness may appear due to the effects of thermal leakage and polyurethane foam flow disturbances.

도 5에서 나타낸 바와 같이 모서리부위를 부착면에 대하여 예각으로 구조를 변경시킴으로써 알루미늄 필름을 통한 열전도를 분산시키고 UP원액의 흐름도 원활히 함을 알 수 있다. 또한, 도 6에서 알 수 있는 바와 같이, K-인자값은 진공단열판넬를 적용하지 않은 단열벽과 거의 차이가 없을 정도의 단열효과를 나타내므로 국부적으로 K-인자값의 감소효과를 나타낸다As shown in Figure 5 it can be seen that by changing the structure at an acute angle with respect to the attachment surface to disperse the heat conduction through the aluminum film and smooth the flow of UP stock solution. In addition, as can be seen in Figure 6, the K-factor value exhibits a thermal insulation effect that is almost no difference from the heat insulation wall without applying the vacuum insulation panel shows a local K-factor value reduction effect.

진공단열재 판넬의 금속성 외막을 통하여 열전도되는 현상을 방지하여 전력소비를 줄이고, 모서리부분에 공극의 발생을 방지하고, 부착지점에 이슬맺힘현상을 방지하고자, 본발명은 단열재 코어와 금속성 외막으로 이루어진 진공단열재에 있어서 사면구조의 모서리를 갖는 진공단열재 코어재 및 이를 이용한 진공단열재 판넬을 제공하고자 한다.In order to reduce the power consumption by preventing heat conduction through the metallic outer film of the vacuum insulation panel, to prevent the occurrence of voids at the corners, and to prevent dew condensation at the attachment point, the present invention is a vacuum consisting of the insulation core and the metallic outer film To provide a vacuum insulation core material having a corner of the slope structure in the heat insulating material and a vacuum insulation panel using the same.

본발명은 진공단열판넬의 테두리중 부착되는 냉각기기의 외판에 비평행면이 진공단열판넬과 외판의 부착면에 대해서 예각을 이루는 구조를 갖는 진공단열판넬을 제공하여, 외판에 평행명의 열전도, 모서리 부분의 공극(공극), 진공단열판넬이 부착된 가장자리부분에 이슬맺힘현상을 개선하여 소비전력을 감소시킬 수 있다.The present invention provides a vacuum insulation panel having a structure in which a non-parallel surface forms an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate on the outer plate of the cooling device attached to the edge of the vacuum insulation panel, and the heat conduction and corner portion of the outer plate in parallel It is possible to reduce the power consumption by improving the dew condensation at the edges of the voids and voids attached to the vacuum insulation panel.

도 1은 종래의 직각구조 모서리를 갖는 진공단열재 판넬의 형상 및 단면도를 나타낸다.1 shows a shape and a cross-sectional view of a vacuum insulation panel having a conventional rectangular structure corner.

도 2는 종래의 직각구조 모서리를 갖는 진공단열재 판넬을 냉장고에 부착한 경우에 부착부위에서의 알루미늄 필름을 통한 열전도 및 이슬맺힘현상을 나타내는개략도이다.Figure 2 is a schematic diagram showing the heat conduction and dew formation phenomenon through the aluminum film in the attachment portion when a conventional vacuum insulation panel having a rectangular structure corner is attached to the refrigerator.

도 3는 종래의 직각구조 모서리를 갖는 진공단열재 판넬을 냉장고에 부착한 경우에 단열벽의 단면과 각 부위별 K-인자값을 나타내는 그래프이다.3 is a graph showing the cross-section of the heat insulation wall and the K-factor value for each part when a conventional vacuum insulation panel having a rectangular structure corner is attached to a refrigerator.

도 4는 종래의 직각구조 모서리를 갖는 진공단열재 판넬의 열전도 작용이론을 나타내는 개략도와 공극현상을 나타내는 사진이다.Figure 4 is a schematic diagram showing the thermal conduction theory of the conventional thermal insulation panel having a rectangular structure corner and a photograph showing the pore phenomenon.

도 5는 본발명의 진공단열재 판넬의 형상 및 단면도를 나타낸다.Figure 5 shows the shape and cross-sectional view of the vacuum insulation panel of the present invention.

도 6는 본발명의 진공단열재 판넬을 냉장고에 부착한 경우에 단열벽의 단면과 각 부위별 K-인자값을 나타내는 그래프이다.6 is a graph showing the cross-section of the insulation wall and the K-factor value for each part when the vacuum insulation panel of the present invention is attached to the refrigerator.

도 7는 종래의 직각구조 모서리를 갖는 진공단열재 판넬의 열전도 작용이론을 나타내는 개략도와 폴리우레탄폼원액의 충진을 나타내는 개략도이다.Figure 7 is a schematic diagram showing the thermal conduction theory of the conventional heat insulating panel having a rectangular structure corner and a schematic diagram showing the filling of the polyurethane foam stock solution.

도 8은 모서리 각이 예각일 때와 둔각일 때의 단열재의 모양을 나타낸다.8 shows the shape of the heat insulator when the corner angle is an acute angle and an obtuse angle.

본발명은 경사진 가장자리 구조를 갖는 진공단열판넬에 관한 것으로서, 구체적으로 진공단열판넬의 테두리중 부착되는 냉각기기의 외판에 비평행면이 진공단열판넬과 외판의 부착면에 대해서 예각을 이루는 구조를 갖는 진공단열판넬에 관한 것이다.The present invention relates to a vacuum insulation panel having an inclined edge structure, in particular, a non-parallel surface on the outer plate of the cooling device attached to the edge of the vacuum insulation panel has a structure that forms an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate. It relates to a vacuum insulation panel.

본발명의 진공단열재 코어 및 판넬의 형상은 진공단열재의 코어재 모서리형상에 따라 알루미늄 필름을 통한 열전도를 분산시켜 K-인자값이 낮아 열누설이 적다. 종래의 알루미늄 필름을 통한 집중적인 열누설로 이슬맺힘형성이 발생하였으나 이를 방지할 수 있다. 또한 진공단열판넬모서리 각도는 작게 함으로써 폴리우레탄폼원액의 흐름성을 호전시켜 모서리 부위의 공극발생을 방지할 수 있다. 공극은 K-인자값과 이슬맺힘현상에 직접적인 영향을 미친다.The shape of the core and panel of the vacuum insulator according to the present invention disperses heat conduction through the aluminum film according to the shape of the core material of the vacuum insulator, so that the K-factor value is low, so that there is little heat leakage. Dew formation occurs due to intensive heat leakage through a conventional aluminum film, but can be prevented. In addition, by reducing the vacuum insulation panel edge angle, it is possible to improve the flowability of the polyurethane foam stock solution to prevent the occurrence of voids at the corners. The voids directly affect K-factor values and dew condensation.

히트 브리지(히트 브리지)라 함은 진공단열재의 필름 및 필름의 열 융착부에서의 열 손실을 의미하는 것으로서, 가능한한 히트 브리지 효과가 적게 되도록 크기, 형상, 및 모서리부 처리등을 고려하여 코어재 및 판넬을 설계함과 동시에, 히트 브리지부는 단열을 요하는 부위와 멀리 떨어지게 하여 단열손실을 최소화해야한다. 이론적 히트 브리지의 계산치는 다음 표 1 및 2에서 나타내는 것과 같다.Heat bridge refers to the heat loss in the heat-sealed portion of the film and the film of the vacuum insulation material, the core material in consideration of the size, shape, and edge treatment to minimize the heat bridge effect as much as possible And while designing the panel, the heat bridge should be kept away from the area requiring heat insulation to minimize heat loss. The theoretical heat bridge calculations are shown in Tables 1 and 2 below.

금속성 필름을 통한 열전도, 즉 히트 브리지효과는 진공단열판넬 판넬이 작을수록 커지지만, 전체적인 금속성외막을 통한 히트 브리지효과는 0.00079, 0.0023 kcal/mhr℃로 K-인자에 영향을 미칠 정도는 아니다. 그러나, 금속성외막의 4면을 통해 방출되는 열은 상대적으로 큰 영향을 미친다. 이 4면을 통해 방출되는 열은 알루미늄 외막의 열전도율이 0.4300kcal/mhr℃와 같으므로 진공단열판넬의 모서리로 누설되는 열이 K-인자에 악영향을 미치고 이슬맺힘현상을 초래한다.The thermal conductivity through the metallic film, that is, the heat bridge effect, becomes larger as the vacuum insulation panel is smaller, but the heat bridge effect through the entire metallic outer film is 0.00079 and 0.0023 kcal / mhr ° C, which does not affect the K-factor. However, the heat released through the four sides of the metallic envelope has a relatively large influence. The heat released through these four sides has the same thermal conductivity as 0.4300kcal / mhr ℃ in the aluminum outer film, so the heat leaking to the edge of the vacuum insulation panel adversely affects the K-factor and causes dew formation.

본발명은 또한 냉각기기의 외판에 대한 비평행면이 진공단열판넬과 외판의 부착면에 대해 30°- 55°를 이루는 구조를 갖는 진공단열판넬에 관한 것이다. 본발명에서 진공단열판넬모서리 각도의 효과는 약 30 내지 55°정도에서 대체로 양호한 K-인자값이 확인되지만, 폴리우레탄폼원액의 흐름도를 보면 모서리 각도는 더욱 작을 수록 좋은 것을 알 수 있다. 진공단열판넬 코어재의 형상은 모서리부가 직각에 가까울 숭록 열전도율이 높은 알루미늄 필름이 단열벽과 수직에 가깝게 위치하므로 열이 누설되는 속도와 그 거리가 가까워져 단열벽이 그만큼 줄어드는 것을 의미한다. 따라서 모서리형상은 적정한 각도로 예각을 이루어여 한다. 실제로 그 각도는 약 30 -50도일 때 효과적이며 그 형상은 외판 부착면에 비평행면이 진공단열재와 외판의 부착면에 대해서 예각일 때가 상기 비평행면이 진공단열재와 외판의 부착면에 대해 둔각일 때보다 효과적이다. 구체적으로 둔각이 경우에는 폴리우레탄폼원액의 주입 방향이 화살표 방향으로만 주입되어야 반대쪽 모서리에 공극이 생기기 때문에 부적합 하며, 단면이 사다리꼴인 경우에는 폴리우레탄폼원액을 어느 방향으로 주입하더라도 공극이 발생하지 않는다.The present invention also relates to a vacuum insulation panel having a structure in which a non-parallel plane with respect to the outer plate of the cooling device is 30 ° -55 ° with respect to the attachment surface of the vacuum insulation panel and the outer plate. In the present invention, the effect of the vacuum insulation panel corner angle is generally good K-factor value is confirmed at about 30 to 55 °, but from the flow chart of the polyurethane foam stock solution it can be seen that the smaller the corner angle is better. The shape of the vacuum insulation panel core material means that the aluminum film, which has a high thermal conductivity, is close to the vertical of the heat insulation wall, where the edge portion is close to the right angle, so that the speed of heat leakage and the distance are shortened, thereby reducing the heat insulation wall. Therefore, the corner shape should be acute at an appropriate angle. In fact, the angle is effective when the angle is about 30-50 degrees, and its shape is that when the non-parallel plane is acute to the attachment surface of the vacuum insulator and the outer plate, the non-parallel plane is an obtuse angle with respect to the attachment surface of the vacuum insulator and the outer plate. Everything is effective. Specifically, in the case of obtuse angle, the injection direction of the polyurethane foam stock solution should be injected only in the direction of the arrow, which is not suitable because voids are formed at the opposite edge. If the cross section is trapezoidal, the void does not occur in any direction when the polyurethane foam stock solution is injected. Do not.

본발명의 진공단열재 코어 및 판넬의 형상은 진공단열재의 코어재 모서리형상에 따라 알루미늄 필름을 통한 열전도를 분산시켜 K-인자값이 낮아 열누설이 적다. 종래의 알루미늄 필름을 통한 집중적인 열누설로 이슬맺힘형성이 발생하였으나 이를 방지할 수 있다. 또한 진공단열판넬모서리 각도는 작게 함으로써 폴리우레탄폼원액의 흐름성을 호전시켜 모서리 부위의 공극발생을 방지할 수 있다.The shape of the core and panel of the vacuum insulator according to the present invention disperses heat conduction through the aluminum film according to the shape of the core material of the vacuum insulator, so that the K-factor value is low, so that there is little heat leakage. Dew formation occurs due to intensive heat leakage through a conventional aluminum film, but can be prevented. In addition, by reducing the vacuum insulation panel edge angle, it is possible to improve the flowability of the polyurethane foam stock solution to prevent the occurrence of voids at the corners.

본발명은 진공단열판넬의 테두리중 부착되는 냉각기기의 외판에 비평행면이 진공단열판넬과 외판의 부착면에 대해서 예각을 이루는 구조를 갖는 진공단열판넬을 제공하여, 외판에 평행명의 열전도, 모서리 부분의 공극(공극), 진공단열판넬이 부착된 가장자리부분에 이슬맺힘현상을 개선하여 소비전력을 감소시킬 수 있다. `The present invention provides a vacuum insulation panel having a structure in which a non-parallel surface forms an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate on the outer plate of the cooling device attached to the edge of the vacuum insulation panel, and the heat conduction and corner portion of the outer plate in parallel It is possible to reduce the power consumption by improving the dew condensation at the edges of the voids and voids attached to the vacuum insulation panel. `

Claims (4)

냉각기기의 외판에 부착된 진공단열판넬용 코어에 있어서, 진공단열판넬코어의 테두리중 상기 진공단열판넬과 외판의 부착면에 비평행면이 진공단열판넬과 외판의 부착면에 대해서 예각을 이루는 구조를 갖는 진공단열판넬용 코어.In the core of the vacuum insulation panel attached to the outer plate of the cooling device, a non-parallel plane is formed at an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate to the attachment surface of the vacuum insulation panel and the outer plate of the edge of the vacuum insulation panel core. Core for vacuum insulation panel having. 제 1 항에 있어서, 상기 진공단열판넬과 외판의 부착면에 대해 30°- 55°를 이루는 구조를 갖는 진공단열판넬용 코어.According to claim 1, wherein the vacuum insulation panel core having a structure of 30 ° to 55 ° with respect to the attachment surface of the vacuum insulation panel and the outer plate. 냉각기기의 외판에 부착된 진공단열판넬에 있어서, 진공단열판넬의 테두리중 상기 진공단열판넬과 외판의 부착면에 비평행면이 진공단열판넬과 외판의 부착면에 대해서 예각을 이루는 구조를 갖는 진공단열판넬용 코어와 금속성 필름으로 이루어진 진공단열판넬.In a vacuum insulation panel attached to an outer plate of a cooling device, a vacuum insulation structure having a non-parallel plane at an acute angle with respect to the attachment surface of the vacuum insulation panel and the outer plate at the attachment surface of the vacuum insulation panel and the outer plate of the edge of the vacuum insulation panel. Vacuum insulation panel consisting of panel core and metallic film. 제 3 항에 있어서, 상기 진공단열판넬과 외판의 부착면에 대해 30°- 55°를 이루는 구조를 갖는 진공단열판넬.The vacuum insulation panel according to claim 3, wherein the vacuum insulation panel has a structure of 30 ° to 55 ° with respect to the attachment surface of the vacuum insulation panel and the outer plate.
KR1020000000467A 2000-01-06 2000-01-06 Core with slant edges useful for vacuum insulating panel, and vacuum insulating panel made by the same KR20010068518A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100389397B1 (en) * 2000-10-04 2003-06-27 주식회사 엘지이아이 Composite vacuum insulation panel and product method that

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469496A (en) * 1990-07-09 1992-03-04 Mitsubishi Heavy Ind Ltd Composite-material panel coated with metallic film
JPH07113493A (en) * 1993-10-15 1995-05-02 Meisei Kogyo Kk Vacuum insulating member
JPH07167377A (en) * 1993-12-14 1995-07-04 Sharp Corp Vacuum heat insulating material
JP2000320958A (en) * 1999-05-11 2000-11-24 Mitsubishi Electric Corp Vacuum heat insulating body and heat insulating structural body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0469496A (en) * 1990-07-09 1992-03-04 Mitsubishi Heavy Ind Ltd Composite-material panel coated with metallic film
JPH07113493A (en) * 1993-10-15 1995-05-02 Meisei Kogyo Kk Vacuum insulating member
JPH07167377A (en) * 1993-12-14 1995-07-04 Sharp Corp Vacuum heat insulating material
JP2000320958A (en) * 1999-05-11 2000-11-24 Mitsubishi Electric Corp Vacuum heat insulating body and heat insulating structural body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100389397B1 (en) * 2000-10-04 2003-06-27 주식회사 엘지이아이 Composite vacuum insulation panel and product method that

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