Heat Preserving Pack

Abstract

The present invention relates to a heat/temperature preserving pack. Embodiments of the heat preserving pack include a soft pack or a hard box pack, having an inner containing space filled with phase change isothermal substance. The present invention maintains the temperature of objects for an extended period to achieve a constant temperature effect. By implementing the present invention, the size and weight of the heat preserving container is effectively reduced and the space available for storing objects to be heat preserved is increased. Thus, the heat preserving container is convenient to carry and the transport cost is reduced.

1 . A temperature preserving pack, comprising an inner containing space formed within the temperature preserving pack and filled with a phase change isothermal substance, wherein the phase change isothermal substance is selected from a group consisting of gelatinous, crystalline, grainy, and liquid phase materials. 
   
   
       2 . The temperature preserving pack according to  claim 1 , wherein the phase change isothermal substance comprises inorganic phase change material, organic phase change material, and alternatively, compound phase change material. 
   
   
       3 . The temperature preserving pack according to  claim 2 , wherein the inorganic phase change material comprises crystalloid hydrated salts, molten salts, metal, and alternatively, alloys. 
   
   
       4 . The temperature preserving pack according to  claim 2 , wherein the organic phase change material comprises paraffin, acetic acid, and alternatively, other organic compounds. 
   
   
       5 . The temperature preserving pack according to  claim 1 , wherein the phase change isothermal substance comprises hydrated inorganic salts. 
   
   
       6 . The temperature preserving pack of  claim 1 , wherein the melting point of the phase change isothermal substance has a temperature range from −40° C. to 150° C. 
   
   
       7 . The temperature preserving pack according to the  claim 1 , wherein the temperature preserving pack comprises of a soft and waterproof material, and sealed at a plurality of edges of the pack. 
   
   
       8 . The temperature preserving pack according to the  claim 1 , wherein the temperature preserving pack comprises a hard box manufactured of a waterproof material. 
   
   
       9 . A temperature preserving pack comprising a hard box made of waterproof material, the hard box further comprising a box body and a cover, wherein, the box body and the cover are embedded upon each other and adhered together, and wherein an inner containing space formed within the hard box is filled with a phase change isothermal substance, selected from a group consisting of gelatinous, crystalline, grainy, and liquid phase materials. 
   
   
       10 . The temperature preserving pack according to  claim 9 , wherein the phase change isothermal substance comprises inorganic phase change material, organic phase change material, and alternatively, compound phase change material. 
   
   
       11 . The temperature preserving pack according to  claim 10 , wherein the inorganic phase change material comprises crystalloid hydrated salts, molten salts, metal, and alternatively, alloys. 
   
   
       12 . The temperature preserving pack according to  claim 10 , wherein the organic phase change material comprises paraffin, acetic acid, and alternatively, other organic compounds. 
   
   
       13 . The temperature preserving pack according to  claim 10 , wherein the phase change material comprises hydrated inorganic salts. 
   
   
       14 . The temperature preserving pack according to  claim 9 , wherein the box body and the cover are blow molded together into one piece having a smooth surface such that there are no joints on an outer wall and an inner wall of the hard box. 
   
   
       15 . The temperature preserving pack according to  claim 9 , wherein a portion of a bottom surface of the box body is formed as a concave depression. 
   
   
       16 . A temperature preserving pack comprising a soft and waterproof material, wherein a plurality of edges of the pack are sealed by high frequency hot melting of each edge; and wherein an inner containing space formed within the temperature preserving pack is filled with a phase change isothermal substance selected from a group consisting of gelatinous, crystalline, grainy, and liquid phase materials; and having a temperature range from −40° C. to 150° C. 
   
   
       17 . The temperature preserving pack according to  claim 16 , wherein the phase change isothermal substance comprises inorganic phase change material, organic phase change material, and alternatively, compound phase change material. 
   
   
       18 . The temperature preserving pack according to  claim 17 , wherein the inorganic phase change material comprises crystalloid hydrated salts, molten salts, metal, and alternatively, alloys. 
   
   
       19 . The temperature preserving pack according to  claim 17 , wherein the organic phase change material comprises paraffin, acetic acid, and alternatively, other organic compounds. 
   
   
       20 . The temperature preserving pack according to the  claim 16 , wherein the temperature preserving pack comprises a plurality of temperature preserving packs connected together.