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KR-20260063459-A - Vacuum insulation panel

KR20260063459AKR 20260063459 AKR20260063459 AKR 20260063459AKR-20260063459-A

Abstract

The present invention relates to a vacuum insulation panel comprising: a core material; an upper outer shell including an upper outer shell covering the upper surface of the core material and an upper outer shell extending downward along the side of the core material from the upper outer shell; and a lower outer shell including a lower outer shell covering the lower surface of the core material and a lower outer shell extending upward along the side of the core material from the lower outer shell, wherein the upper outer shell and the lower outer shell each include opposing surfaces that overlap each other on the side of the core material, and the opposing surfaces can be joined to seal the core material.

Inventors

  • 이진성
  • 김현철
  • 이정민
  • 주한백
  • 한성곤

Assignees

  • 에이치디한국조선해양 주식회사

Dates

Publication Date
20260507
Application Date
20241030

Claims (6)

  1. Heartwood; An upper outer skin comprising an upper outer skin covering the upper surface of the core material and an upper outer skin extending downward along the side of the core material from the upper outer skin; and It includes a lower outer skin comprising a lower outer skin covering the lower surface of the core material and a lower outer skin extending upward along the side of the core material from the lower outer skin. The upper outer skin and the lower outer skin each include surfaces that overlap and face each other on the side of the core material. A vacuum insulation panel in which the above-mentioned opposing surfaces are joined to seal the core material.
  2. In claim 1, The above core material is a vacuum insulation panel that is a low-shrinkage core material.
  3. In claim 1, The upper outer shell and the lower outer shell are, A reinforcing layer that protects the core material from external impact; and Vacuum insulation panels each comprising an airtight layer that maintains a sealed internal vacuum.
  4. In claim 3, A vacuum insulation panel in which different layers are joined, such that the sealing layer of the upper side surface of the upper outer shell is joined to the reinforcing layer of the lower side surface of the lower outer shell, or the reinforcing layer of the upper side surface of the upper outer shell is joined to the sealing layer of the lower side surface of the lower outer shell.
  5. In claim 1, The above-mentioned bond is a vacuum insulation panel formed by thermal fusion.
  6. In claim 1, A vacuum insulation panel comprising a getter that absorbs gas leaked into the sealed space between the core material and the upper or lower outer shell.

Description

Vacuum insulation panel The present invention relates to a vacuum insulation panel. Referring to FIGS. 1 and 2, a conventional vacuum insulation panel (1) is composed of a core material (10) that maintains its shape, an outer shell (20) that blocks external gas to maintain a vacuum inside the panel, and a getter (adsorbent, not shown in the drawings) that absorbs gas introduced into the interior. FIG. 1 is a perspective view showing a conventional vacuum insulation panel (1). FIG. 2 is a plan view showing a conventional vacuum insulation panel (1) with an edge portion (40) folded and attached. Compared to a general insulation panel, the vacuum insulation panel (1) can exhibit high insulation performance because the interior is kept in a vacuum, and can be applied to a liquefied gas cargo tank for storing cryogenic liquefied gas. A vacuum insulation panel (1) is manufactured by placing a core material (10) inside an outer shell (20) in the shape of a pouch or envelope with one side open, forming a vacuum inside, and then sealing it by bonding an adhesive layer (30) to the open part. However, since a three-dimensional core material (10) is placed inside a flat outer shell (20), an excessive amount of folding parts and excess material is generated inside, and during the vacuum formation and sealing process, the inner core material (10) shrinks, and accordingly, the outer shell (20) also shrinks to match its size and becomes wrinkled, so the outer surface of the vacuum insulation panel (1) has an uneven and non-uniform surface. At this time, when multiple vacuum insulation panels (1) with uneven outer surfaces are stacked or placed next to each other, there is a problem in that many gaps are created and local convection occurs, causing the insulation performance to deteriorate. In addition, since the outer shell (20) of the vacuum insulation panel (1) uses a film of metal and polymer material with high thermal conductivity to block external gas, a phenomenon (Thermal Bridge Effect) in which heat is transferred through the outer shell may occur. The vacuum insulation panel (1) has an outer shell (20) that protrudes outwardly by having an adhesive layer (30) attached, i.e., an edge portion (40). In the past, the protrusion was minimized by folding the edge portion (40) and attaching it to the surrounding outer shell (20) (see FIG. 2). However, the part where the edge portion (40) is folded and attached has a thicker thickness compared to the surrounding area, which caused more heat conduction. Since vacuum insulation panels (1) are at risk of damaging the vacuum space, post-processing to make the surface uniform is impossible, so it is necessary to make the surface uniform during the manufacturing process itself. Figure 1 is a perspective view of a conventional vacuum insulation panel. FIG. 2 is a plan view showing a conventional vacuum insulation panel with the edge portion folded and attached. FIG. 3 is an exploded perspective view of the vacuum insulation panel of the present invention. FIG. 4 is a perspective view of the vacuum insulation panel of the present invention. FIG. 5 is a plan view of the vacuum insulation panel of the present invention. Figure 6 is a drawing showing the outer shell and adhesive layer of a conventional vacuum insulation panel. Figure 7 is a drawing showing the outer shell and adhesive layer of the vacuum insulation panel of the present invention. Figure 8 is a diagram showing the heat fusion process of a conventional vacuum insulation panel. Figure 9 is a diagram showing the heat fusion process of the vacuum insulation panel of the present invention. Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are intended merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by these terms. Where it is stated that a component is "connected," "combined," or "joined" to another component, it should be understood that the component may be directly connected or joined to the other component, but that another component may also be "connected," "combined," or "joined" between each component. In this specification, the front-back, left-right, and up-down directions are referred to for convenience of explanation and may be d