Planar heating element, and clothing management apparatus, hot/cold water purifier and floor heating panel for building, comprising the same

A clothing management apparatus using a planar heating element, the clothing management apparatus comprising an ironing board for removing wrinkle or forming knife creases of pants by pressing a clothing, wherein the ironing board is a planar heating element planar including a heating part, which is configured such that a pair of wires are inserted into a matrix formed by forming a conductive composite material in which a base resin and a conductive material are mixed with each other, the pair of wires being spaced apart from each other by a predetermined distance, so that heat is generated by means of electrical resistance that is generated inside the matrix when power is applied, and

• the conductive material comprises:
• carbon members dispersed into the base resin and forming an electrical network;
• and
• metal powders interposed between the carbon members, increasing the electrical network by the carbon members and increasing thermal conductivity of the conductive composite material to transfer electrical resistance heat generated by the carbon members to a surface of the heating part, and
• an amount of the base resin in the conductive composite material is 60 to 72w %, and
• an amount of the carbon members in the conductive composite material is greater than or equal to 10w % and less than or equal to 17w % so as to form the electrical network, and a diameter of the metal powders in the conductive composite material is 10 nm to 100 nm, and an amount of the metal powders is greater than or equal to 12w % so as to increase an electrical network between the carbon members and to increase thermal conductivity of the conductive composite material, and is less than or equal to 22w % so as to reduce specific gravity of the conductive composite material, and specific gravity of the conductive composite material is 0.8 to 1.3, wherein the specific gravity is measured by a method according to ASTM D792, resistivity of the conductive composite material is 2 to 10 Ωmm2/m, and thermal conductivity of the conductive composite material is 156 to 235 kcal/mh° C.

A hot/cold water purifier using a planar heating element, the hot/cold water purifier comprising a planar heating element provided to be in contact with at least one side of a hot water tank in which hot water is accommodated, wherein the planar heating element comprises a heating part, which is configured such that a pair of wires are inserted into a matrix formed by forming a conductive composite material in which a base resin and a conductive material are mixed with each other, the pair of wires being spaced apart from each other by a predetermined distance, so that heat is generated by means of electrical resistance that is generated inside the matrix when power is applied, and

• the conductive material comprises:
• carbon members dispersed into the base resin and forming an electrical network;
• and
• metal powders interposed between the carbon members, increasing the electrical network by the carbon members and increasing thermal conductivity of the conductive composite material to transfer electrical resistance heat generated by the carbon members to a surface of the heating part, and
• an amount of the base resin in the conductive composite material is 60 to 72w %, and
• an amount of the carbon members in the conductive composite material is greater than or equal to 10w % and less than or equal to 17w % so as to form the electrical network, and a diameter of the metal powders in the conductive composite material is 10 nm to 100 nm, and an amount of the metal powders is greater than or equal to 12w % so as to increase an electrical network between the carbon members and to increase thermal conductivity of the conductive composite material, and is less than or equal to 22w % so as to reduce specific gravity of the conductive composite material, and specific gravity of the conductive composite material is 0.8 to 1.3, wherein the specific gravity is measured by a method according to ASTM D792, resistivity of the conductive composite material is 2 to 10 Ωmm2/m, and thermal conductivity of the conductive composite material is 156 to 235 kcal/mh° C.

A floor heating panel for a building using a planar heating element, the floor heating panel comprising a planar heating element provided on the floor heating panel for the building, wherein the planar heating element comprises a heating part, which is configured such that a pair of wires are inserted into a matrix formed by forming a conductive composite material in which a base resin and a conductive material are mixed with each other, the pair of wires being spaced apart from each other by a predetermined distance, so that heat is generated by means of electrical resistance that is generated inside the matrix when power is applied, and

• the conductive material comprises:
• carbon members dispersed into the base resin and forming an electrical network;
• and
• metal powders interposed between the carbon members, increasing the electrical network by the carbon members and increasing thermal conductivity of the conductive composite material to transfer electrical resistance heat generated by the carbon members to a surface of the heating part, and
• an amount of the base resin in the conductive composite material is 60 to 72w %, and
• an amount of the carbon members in the conductive composite material is greater than or equal to 10w % and less than or equal to 17w % so as to form the electrical network, and a diameter of the metal powders in the conductive composite material is 10 nm to 100 nm, and an amount of the metal powders is greater than or equal to 12w % so as to increase an electrical network between the carbon members and to increase thermal conductivity of the conductive composite material, and is less than or equal to 22w % so as to reduce specific gravity of the conductive composite material, and specific gravity of the conductive composite material is 0.8 to 1.3, wherein the specific gravity is measured by a method according to ASTM D792, resistivity of the conductive composite material is 2 to 10 Ωmm2/m, and thermal conductivity of the conductive composite material is 156 to 235 kcal/mh° C.