Gelatinous latent heat storage member with benard cell regions

Patent metadata

Field	Value
Publication number	US-9482473-B2
Application number	US-201214233216-A
Country	US
Kind code	B2
Filing date	Jul 23, 2012
Priority date	Jul 27, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

An object of the present invention is to provide a readily produced and easily handled heat storage member. The heat storage member 1 has a rectangular plane surface of, for example, 15 (cm)×20 (cm), and has a thickness of, for example, 10 to 15 mm. The heat storage member 1 includes a gelatinous latent heat storage material 12 , and a large number of highly heat conductive fillers 14 dispersed in the latent heat storage material 12 . The highly heat conductive fillers 14 are mixed in the latent heat storage material 12 with a bias in dispersion density. In the rectangular plane surface of the heat storage member 1 , a periodic pattern is formed in combination of cellular (cell-like) regions 10 , which are demarcated by, for example, hexagonal contour lines 16 and which are periodically arrayed in the vertical and horizontal directions.

First claim

The invention claimed is:

1. A heat storage member comprising:
a gelatinous latent heat storage material; and
a plurality of heat conductive fillers dispersed in the latent heat storage material,
wherein a plurality of Benard cells are each defined by a polygonal contour line in a first surface of the latent heat storage material,
wherein each of the plurality of Benard cells defines a single cellular region, each of the cellular regions comprising:
a columnar region demarcating the latent heat storage material, in a direction of thickness of the latent heat storage material, and
the plurality of heat conductive fillers dispersed in the columnar region of each of the plurality of Benard cells with a bias in dispersion density,
wherein a central axial region defined by a central axis of the columnar region of each of the plurality of Benard cells, extends from the first surface to a second surface of the columnar region, wherein the second surface is located below the first surface, and wherein the central axial region has a higher thermal conductivity in a direction of the central axis than a peripheral region that completely surrounds the central axial region within the columnar region, and
wherein the plurality of heat conductive fillers in the central axial region of each of the plurality of Benard cells are aggregated at a higher density than the plurality of heat conductive fillers in the peripheral region of each of the plurality of Benard cells.

2. The heat storage member according to claim 1 , wherein the peripheral region of each of the plurality of Benard cells has a higher heat storage characteristic than the central axial region of each of the plurality of Benard cells.

3. The heat storage member according to claim 2 , wherein a weight of the latent heat storage material in the peripheral region of each of the plurality of Benard cells is larger than a weight of the latent heat storage material in the central axial region of each of the plurality of Benard cells.

4. The heat storage member according to claim 1 , wherein the cellular regions define a periodic pattern periodically arrayed in vertical and horizontal directions relative to the first surface.

5. The heat storage member according to claim 1 , wherein the heat storage material contains a gelling agent.

6. The heat storage member according to claim 1 , wherein the gelling agent contains a polymer material.

7. The heat storage member according to claim 1 , wherein the latent heat storage material contains paraffin.

Assignees

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

Inventors

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

Classifications

• C09K5/063 Primary

  Materials absorbing or liberating heat during crystallisation; Heat storage materials · CPC title

• Y02E60/145

  Cross-Sectional Technologies · mapped topic

• Y10T428/24893

  including particulate material · CPC title

• Y10T428/254

  Polymeric or resinous material · CPC title

• F28D20/023

  the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure · CPC title