Abstract: A heat-insulation box, includes: a heat-insulation-box main body that has a space; a door that seals the space; and a partition plate that partitions the space, wherein the partition plate includes (i) a design plate that is placed at a side of the door, (ii) a first plate part and a second plate part that are each provided at both edges of the design plate, (iii) a heat-insulation material that is located in a region surrounded by the design plate, the first plate part, and the second plate part, and (iv) a heat-insulation member that is placed in at least one of a gap between the design plate and the first plate part, and a gap between the design plate and the second plate part.

Abstract: A vacuum heat-insulation material includes: at least one first fiber member; at least one second member that is placed around an outer peripheral part of the at least one first fiber member and that is thinner than an inner part; and at least one shell material that surrounds the at least one first fiber member and the at least one second fiber member.

Abstract: A vacuum heat-insulation material includes: at least one first fiber member; at least one second member that is placed around an outer peripheral part of the at least one first fiber member and that is thinner than an inner part; and at least one shell material that surrounds the at least one first fiber member and the at least one second fiber member.

Abstract: A refrigerator suppresses heat penetration into a chamber of the refrigerator from the outside through an open part. The refrigerator, includes: a heat-insulation box that has an open part, and a double structure including an outer box and an Inner box; a door that is engaged with the heat-insulation box; and a gasket that is located between the heat-insulation box and the door, wherein inner-box/outer-box-joint regions of the outer box and the inner box are located to an outer side of the heat-insulation box, and are located outward beyond door/heat-insulation-box-joint regions of the door and the heat-insulation box that are joined with each other.

Abstract: A heat-insulation box, includes: a heat-insulation-box main body that has a space; a door that seals the space; and a partition plate that partitions the space, wherein the partition plate includes (i) a design plate that is placed at a side of the door, (ii) a first plate part and a second plate part that are each provided at both edges of the design plate, (iii) a heat-insulation material that is located in a region surrounded by the design plate, the first plate part, and the second plate part, and (iv) a heat-insulation member that is placed in at least one of a gap between the design plate and the first plate part, and a gap between the design plate and the second plate part.