Refrigerated display case having a transparent insulating glazing unit
First Claim
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1. A refrigerated display case comprising:
- a refrigerated enclosure constructed and arranged to contain cold or frozen products;
a door constructed and arranged to seal the refrigerated enclosure when in a closed position, the door having a transparent insulating glazing unit comprising at least two glass substrates; and
an antifrosting adsorbent layer disposed on a surface of a glass substrate facing an interior of the refrigerated enclosure and formed from at least one hydrophilic polymer, wherein the transparent insulating glazing unit inhibits the formation of condensation on a surface of the glass substrate in contact with the ambient atmosphere and the antifrosting adsorbent layer inhibits the formation of water crystals on the surface of the glass substrate facing the interior of the refrigerated enclosure when the door is opened.
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Accused Products
Abstract
A refrigerated display case having a transparent insulating glazing unit for displaying cold or frozen products. The glazing unit has an antifrosting absorbent layer that inhibits the formation of visible condensation or frost.
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Citations
64 Claims
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1. A refrigerated display case comprising:
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a refrigerated enclosure constructed and arranged to contain cold or frozen products;
a door constructed and arranged to seal the refrigerated enclosure when in a closed position, the door having a transparent insulating glazing unit comprising at least two glass substrates; and
an antifrosting adsorbent layer disposed on a surface of a glass substrate facing an interior of the refrigerated enclosure and formed from at least one hydrophilic polymer, wherein the transparent insulating glazing unit inhibits the formation of condensation on a surface of the glass substrate in contact with the ambient atmosphere and the antifrosting adsorbent layer inhibits the formation of water crystals on the surface of the glass substrate facing the interior of the refrigerated enclosure when the door is opened. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A refrigerated display case comprising:
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a refrigerated enclosure constructed and arranged to contain cold or frozen products;
a door constructed and arranged to seal the refrigerated enclosure when in a closed position, the door having a transparent insulating glazing unit comprising at least two glass substrates; and
an antifrosting adsorbent layer disposed on a surface of a glass substrate facing an interior of the refrigerated enclosure, the antifrosting adsorbent layer being further an absorbent layer which is porous to allow condensation to absorb therein, wherein the transparent insulating glazing unit inhibits the formation of condensation on a surface of the glass substrate in contact with the ambient atmosphere and the antifrosting adsorbent layer inhibits the formation of water crystals on the surface of the glass substrate facing the interior of the refrigerated enclosure when the door is opened.
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35. A transparent insulating glazing unit constructed and arranged for use in a refrigerated display case, the transparent insulating glazing unit comprising:
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at least two glass substrates bound together by a spacer; and
an antifrosting adsorbent layer disposed on an exterior surface of a glass substrate constructed and arranged to contact an interior of a refrigerated display case when the glazing unit is mounted in a door and the door is in a closed position on the display case, the antifrosting adsorbent layer being further an absorbent layer which is porous to allow condensation to absorb therein, wherein the transparent insulating glazing unit inhibits the formation of condensation on a surface of the glass substrate in contact with the ambient atmosphere and the antifrosting adsorbent layer inhibits the formation of water crystals on the surface of the glass substrate facing the interior of the refrigerated enclosure during use on the refrigerated display case.
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- 36. An insulating glazing unit for a door of a refrigerated display case comprising three glass substrates, a first glass substrate having an external surface of which is in contact with an interior of a refrigerated enclosure when the glazing unit is mounted in the door and the door is in a closed position, a second glass substrate, and a third glass substrate the external surface of which is in contact with the ambient environment when the glazing unit is mounted in the door, the three substrates being separated from one another by a spacer of low thermal conductivity, a low-emission coating being disposed on at least in part on one of the surfaces of the glass substrates, and an antifrosting adsorbent layer for inhibiting the formation of condensation and frost being disposed on at least part of the external surface of the first glass substrate, wherein the thickness of the substrates is between 2 and 5 mm, at least one space between the substrates is filled with at least one rare gas, a thickness of the space between the substrates is at least 4 mm, a spacer for bonding the substrates together has a thermal conductivity of less than 1 W/m.K, the glazing unit has no heating element, the glazing unit has a thermal conductivity coefficient U of less than 1.1 W/m2.K, with at least 85% gas filling, and the glazing unit has a light transmission ratio of at least 67% and an external light reflection factor of below 18%.
- 47. An insulating glazing unit for a door of a refrigerated display case comprising two glass substrates, a first substrate the external surface of which is in contact with an inside of the display case when the glazing unit is mounted in the door and the door is in a closed position, and a second substrate the external surface of which is in contact with the ambient environment, which substrates are separated from one another by a spacer of low thermal conductivity, the space between the substrates being filled with a rare gas, a low-emission coating being deposited at least in part on one of the surfaces of the substrates, and an antifrosting adsorbent layer for inhibiting the formation of condensation and frost being disposed on at least part of a surface of the first glass substrate intended to be in contact with an interior of the refrigerated display case, wherein the thickness of the substrates is from 2 to 5 mm, the space between the substrates is filled with krypton or xenon, the thickness of the layer of krypton or of xenon is at least 8 mm, and the spacer has a thermal conductivity of less than 1 W/m.K, the glazing unit has no heating element, the glazing unit has a thermal conductivity coefficient U of less than 1.15 W/m2.K, with at least 85% gas filling, and the glazing unit has a light transmission ratio of at least 75% and an external light reflection factor of below 12%.
Specification