Vacuum thermal insulating plate and refrigerator

Abstract

The invention provides a vacuum thermal insulating plate and a refrigerator. The vacuum thermal insulating plate comprises a core material and a blocking membrane bag. A groove is formed in the side face of the core material. The core material is sealed in the blocking membrane bag. The blocking membrane bag is attached to the outer surface of the core material. The blocking membrane bag is attached to the inner wall face of the groove. By forming the groove in the side face of the vacuum thermal insulating plate, on one hand, the heat conduction route of the blocking membrane bag is lengthened, the heat conduction heat resistance of the blocking membrane bag is increased, and therefore the heat bridge effect in the vacuum thermal insulating plate is reduced, and the thermal insulating effect of the vacuum thermal insulating plate is improved; on the other hand, the contact area between the side face of the vacuum thermal insulating plate and a foamed layer is enlarged, the side face of the vacuum thermal insulating plate and the foamed layer are clamped, the adhesive force between the side face of the vacuum thermal insulating plate and the foamed layer is increased, the foamed layer and the vacuum thermal insulating plate are more firmly combined, and the disengagement phenomenon between the vacuum thermal insulating plate and the foamed layer is effectively avoided.

Description

technical field [0001] The invention relates to the field of refrigeration equipment, and more specifically, to a vacuum insulation panel and a refrigerator comprising the vacuum insulation panel. Background technique [0002] There is a layer of aluminum foil in the barrier film bag of the vacuum insulation panel, so the thermal conductivity of the barrier film bag is much larger than that of the core material in the barrier film bag, so that part of the heat passes through the vacuum insulation panel from the hot end of the vacuum insulation panel. It is transmitted to the cold end, which seriously affects the insulation effect of the vacuum insulation panel. [0003] In the existing structure, such as figure 1 As shown, the vacuum insulation panel 1' includes a core material 10' and a barrier film bag 11'. Since the cross section of the core material 10' is rectangular, the cross section of the vacuum insulation panel 1' is rectangular. On the one hand, the heat passes t...

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Problems solved by technology

[0002] There is a layer of aluminum foil in the barrier film bag of the vacuum insulation panel, so the thermal conductivity of the barrier film bag is much larger than that of the core material in the barrier film bag, so that part of the heat passes through the vacuum insulation panel from the hot end of the vacuum insulation panel. It is transmitted to the cold end, which seriously affects the insulation effect of the vacuum insulation panel

[0003] In the existing structure, such as figure 1 As shown, the vacuum insulation panel 1' includes a core material 10' and a barrier film bag 11'. Since the cross section of the core material 10' is rectangular, the cross section of the vacuum insulation panel 1' is rectangular. On the one hand, the heat passes through the barrier film bag 11 The path from the hot end of the vacuum insulation panel 1 to the cold end is short, the heat conduction resistance is small, and the heat conduction is relatively large, which further increases the thermal bridge effect of the vacuum insulation panel 1' and reduces the thermal conductivity of the vacuum insulation panel 1'. Insulation effect; on the other hand, when the vacuum insulation panel 1' is used in conjunction with the foam layer, the contact area between the height direction of the vacuum insulation panel 1' and the foam layer is small, and the height direction of the vacuum insulation panel 1' is a planar structure , the adhesive force is small, so there is a detachment phenomenon between the vacuum insulation panel 1' and the foam layer, which affects the use effect of the vacuum insulation panel

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