Storage container utilizing two different heat insulating materials in combination with a temperature control unit and a heat storage material placed within the container

Patent metadata

Field	Value
Publication number	US-9624022-B2
Application number	US-201214110239-A
Country	US
Kind code	B2
Filing date	Apr 5, 2012
Priority date	Apr 8, 2011
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

Performance of heat insulation between the outside of a storage container and the inside of a storage chamber is effectively improved. The storage container includes a container body having an opening, a door member closing the opening in an openable and closable manner, and a temperature-controlled unit having a function of making a temperature inside a storage chamber 2 enclosed by the container body and the door member be different from a temperature outside the storage chamber. The container body includes a first heat-insulating material 14 , a second heat-insulating material 15 which is provided partially on the opposite side to the storage chamber 2 with respect to the first heat-insulating material 14 and has thermal conductivity lower than that of the first heat-insulating material 14 , and a heat-storage material 16 which is provided at least partially in a region where the second heat-insulating material 15 is not provided as viewed from a thickness direction of the first heat-insulating material 14 on the same side as the storage chamber 2 with respect to the first heat-insulating material 14 and is formed of one or more kinds of raw material where phase transition is caused between a liquid phase and a solid phase at a temperature between the temperature outside the storage chamber 2 and the temperature inside the storage chamber 2 obtained by the function of the temperature-controlled unit.

First claim

The invention claimed is:

1. A storage container comprising:
a container body having an opening;
a door member closing the opening in an openable and closable manner; and
a temperature-controlled unit having a function of making a temperature inside a storage chamber enclosed by the container body and the door member different from a temperature outside the storage chamber,
wherein the container body includes
a first heat-insulating material,
a second heat-insulating material which is provided partially on the opposite side to the storage chamber with respect to the first heat-insulating material and has thermal conductivity lower than thermal conductivity of the first heat-insulating material, and
a stationary heat-storage material which is continuously and fixedly provided at least partially in a region where the second heat-insulating material is not provided as viewed from a thickness direction of the first heat-insulating material on the same side as the storage chamber with respect to the first heat-insulating material and is formed of one or more kinds of raw material where phase transition is caused between a liquid phase and a solid phase at a temperature between the temperature outside the storage chamber and the temperature inside the storage chamber obtained by the function of the temperature-controlled unit.

2. The storage container according to claim 1 ,
wherein the heat-storage material is disposed from a first region which does not overlap the second heat-insulating material as viewed from the thickness direction of the first heat-insulating material to a second region which overlaps the second heat-insulating material across an edge of the second heat-insulating material.

3. The storage container according to claim 2 ,
wherein, a distance corresponding to an overlap amount from the edge of the second heat-insulating material to an edge of the heat-storage material as viewed from the thickness direction of the first heat-insulating material includes a distribution that is partially varied along an entirety of an outer periphery of the second heat-insulating material.

4. The storage container according claim 1 ,
wherein a thickness of the heat-storage material in a portion overlapping a vacuum heat-insulating material includes a distribution that is partially varied along an entirety of an outer periphery of the second heat-insulating material.

5. The storage container according to claim 1 ,
wherein the heat-storage material is formed by using plural kinds of raw material.

6. The storage container according to claim 2 ,
wherein the second region includes a region overlapping a portion where thermal conductivity in the thickness direction of the second heat-insulating material is larger than or equal to thermal conductivity in the thickness direction of the first heat-insulating material.

7. The storage container according to claim 2 ,
wherein the second region includes a region overlapping a portion where the thermal conductivity in the thickness direction of the second heat-insulating material is larger than or equal to 0.02 W/(m·K).

8. The storage container according to claim 2 ,
wherein the distance from the edge of the second heat-insulating material to the edge of the heat-storage material in the second region as viewed from the thickness direction of the first heat-insulating material is 20 mm or more.

9. The storage container according to claim 1 ,
wherein the heat-storage material is only disposed in a first region which does not overlap the second heat-insulating material as viewed from the thickness direction of the first heat-insulating material.

10. The storage container according to claim 2 ,
wherein a plurality of second heat-insulating materials are provided discretely, and
wherein the heat-storage material is continuously provided in the first region between a pair of second heat-insulating materials adjacent to each other in the plurality of second heat-insulating materials.

11. The storage container according to claim 2 ,
wherein the first region includes the whole of a region which does not overlap the second heat-insulating material as viewed from the thickness direction of the first heat-insulating material, in a region of the first heat-insulating material adjacent to the storage chamber.

12. The storage container according to claim 1 ,
wherein at least one of the heat-storage material and the second heat-insulating material is provided in an attachable and detachable manner.

13. The storage container according to claim 1 , further comprising:
a third heat-insulating material provided on the same side as the storage chamber with respect to the first heat-insulating material.

14. The storage container according to claim 13 ,
wherein the third heat-insulating material is provided in an attachable and detachable manner.

15. The storage container according to claim 14 ,
wherein the heat-storage material is attachable and detachable integrally with the third heat-insulating material.

16. The storage container according to claim 13 ,
wherein the third heat-insulating material is formed of the same material as the second heat-insulating material.

17. The storage container according to claim 1 ,
wherein the thermal conductivity in the thickness direction of a peripheral portion including an outer periphery of the second heat-insulating material as viewed from the thickness direction of the second heat-insulating material is higher than thermal conductivity in the thickness direction of the center portion not including the outer periphery of the second heat-insulating material.

18. The storage container according to claim 1 ,
wherein the second heat-insulating material includes an exterior body in which a pressure in the inside thereof is reduced to be lower than the atmosphere and a base material accommodated inside the exterior body.

19. A storage container comprising:
a container body having an opening;
a door member closing the opening in an openable and closable manner; and
a temperature-controlled unit having a function of making a temperature inside a storage chamber enclosed by the container body and the door member be different from a temperature outside the storage chamber,
wherein the container body includes
a first heat-insulating material,
a third heat-insulating material which is provided partially on the same side as the storage chamber with respect to the first heat-insulating material and has thermal conductivity lower than thermal conductivity of the first heat-insulating material, and
a stationary heat-storage material which is continuously and fixedly provided at least partially in a region where the third heat-insulating material is not provided as viewed from a thickness direction of the first heat-insulating material on the same side as the storage chamber with respect to the first heat-insulating material and is formed of one or more kinds of raw material where phase transition is caused between a liquid phase and a solid phase at a temperature between the temperature outside the storage chamber and the temperature inside the storage chamber obtained by the function of the temperature-controlled unit.

20. The storage container according to claim 19 ,
wherein at least one of the heat-storage material and the third heat-insulating material is provided in an attachable and detachable manner.

21. The storage container according claim 2 ,
wherein a thickness of the heat-storage material in a

Assignees

• Ide Tetsuya
• Utsumi Yuka
• Umenaka Yasuyuki
• Yamashita Takashi
• Sharp Kk

Inventors

• Ide Tetsuya
• Utsumi Yuka
• Umenaka Yasuyuki
• Yamashita Takashi

Classifications

• F25D23/062 Primary

  defining a cabinet · CPC title

• F25D3/00

  Devices using other cold materials; Devices using cold-storage bodies · CPC title

• Y02B40/34

  Cross-Sectional Technologies · mapped topic

• F25D2201/14

  using subatmospheric pressure · CPC title

• B65D81/3823 Primary

  formed of different materials, e.g. laminated or foam filling between walls · CPC title