METHOD FOR MANUFACTURING MAGNETO CALORIC DEVICE

• US 20130020529A1
• Filed: 07/20/2012
• Published: 01/24/2013
• Est. Priority Date: 07/22/2011
• Status: Abandoned Application

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: CHANG, Li, HSU, Mao-Jen, KUO, Chung-Jung, MENG, Shih-Pin
• Application Number:
  US13/553,824
• Publication Number:
  US 20130020529A1
• Time in Patent Office: Days
• US Class Current: 252/70
• CPC Class Codes: H01F 1/012 adapted for magnetic entropy change by magnetocaloric effect, e.g. used as magnetic refrigerating material refrigeration systems using magnetic effects F25B21/00

Abstract

Disclosed herein is a method for manufacturing a magneto caloric device. Magneto caloric powders are mixed with thermally conductive powders to form a composite material. An adhesive containing an acrylic resin is poured on the composite material and diffused among the composite material. The adhesive is cured within the composite material at a room temperature.

Claims

1. A method for manufacturing a magneto caloric device comprising:

mixing magneto caloric powders with thermally conductive powders to form a composite material;

pouring an adhesive containing an acrylic resin on the composite material and diffusing the adhesive among the composite material; and

curing the adhesive within the composite material at a room temperature.

2. The method of claim 1, wherein the thermally conductive powders comprise cooper, aluminum or sliver.

3. The method of claim 1, wherein the magneto caloric powders have an average diameter d₁ while the thermally conductive powders have an average diameter d₂, and the ratio of d₁/d₂ ranges from about 1/5 to about 1/10.

4. The method of claim 1, wherein the magneto caloric powders have an average diameter d₁ while the thermally conductive powders have an average diameter d₂, and the ratio of d₁/d₂ ranges from about 5 to about 10.

5. The method of claim 1, wherein the adhesive is diffused among the composite material without stirring the magneto caloric powders and thermally conductive powders.

6. A method for manufacturing a magneto caloric device comprising:

forming an adhesive layer; and

spreading a plurality of magneto caloric material chips on the adhesive layer.

7. The method of claim 6, wherein the adhesive layer is formed to have a thickness less than an average diameter of the magneto caloric material chips.

8. The method of claim 6, where the adhesive layer is formed to have a thickness equal to an average radius of the magneto caloric material chips.

9. The method of claim 6, further comprising:

embedding each magneto caloric material chip partially within the adhesive layer after spreading the magneto caloric material chips on the adhesive layer.

10. The method of claim 9, further comprising:

curing the adhesive layer at a room temperature after embedding each magneto caloric material chip partially within the adhesive layer.

11. The method of claim 9, further comprising:

embedding each magneto caloric material chip partially within the adhesive layer before the adhesive layer is completely cured.

12. The method of claim 6, wherein the adhesive layer comprises acrylic resin.

13. The method of claim 6, wherein the magneto caloric material chips have an average radius ranging from about 50 μ

m to about 5 mm.