ULTRA-LOW TEMPERATURE FREEZER
An ultra-low temperature freezer includes: an insulated case defining a storage compartment having an opening in an upper face; and an insulated door configured to be able to open and close the opening so that the storage compartment can be seen from the front face side of the insulated case, the front face of the insulated case having a thickness smaller than thicknesses of both side faces and a back face of the insulated case.
1 . An ultra-low temperature freezer comprising:
an insulated case defining a storage compartment having an opening in an upper face; and
an insulated door configured to be able to open and close the opening so that the storage compartment can be seen from the front face side of the insulated case,
the front face of the insulated case having a thickness smaller than thicknesses of both side faces and a back face of the insulated case.
2 . The ultra-low temperature freezer according to claim 1 , wherein
the insulated case includes
an inner case whose upper face is configured to be opened,
an outer case that surrounds the inner case,
an insulating material filled between the inner case and the outer case, and
a vacuum insulated panel mounted between the inner case and the outer case,
the vacuum insulated panel being mounted only to the front face of the insulated case.
3 . The ultra-low temperature freezer according to claim 2 , wherein
the vacuum insulated panel is mounted to the front face of the insulated case such that the insulating material is interposed between the inner case and the vacuum insulated panel.
4 . The ultra-low temperature freezer according to claim 1 , wherein
the front face has a thickness equal to or greater than ¼ and equal to or smaller than ⅔ of the thickness of the back face.
5 . The ultra-low temperature freezer according to claim 4 , wherein
the front face has a thickness equal to or smaller than a half of the thickness of the back face.