De-mineralizer for fuel cell and manufacturing method of same

Patent metadata

Field	Value
Publication number	US-10069151-B2
Application number	US-201514933805-A
Country	US
Kind code	B2
Filing date	Nov 5, 2015
Priority date	May 29, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A de-mineralizer for a fuel cell includes a cartridge assembly including an external outer cartridge and an internal inner cartridge installed inside a housing filled with ion resin, wherein at least one of the inner cartridge and the outer cartridge includes an etching network formed with a plurality of fine holes, in which at least one of a size and distribution of the fine holes are formed differently depending on the respective positions based on a vertical flow direction of the cooling water, and a frame formed on an outer circumferential surface of the etching network to support the etching network.

First claim

What is claimed is:

1. A de-mineralizer for a fuel cell comprising:
a cartridge assembly including an external outer cartridge and an internal inner cartridge installed inside a housing filled with ion resin;
wherein at least one of the inner cartridge and the outer cartridge includes an etching network formed by winding a plate-shaped thin plate member which has a plurality of fine holes, and
wherein in the thin plate member, at least one of a size and distribution of the fine holes is formed differently depending on the respective positions based on a vertical flow direction of the cooling water, and a plurality of frames, each of which having a pole shape, are vertically formed on an outer circumferential surface of the etching network from a top portion to a bottom portion of the etching network to support the etching network.

2. The de-mineralizer for a fuel cell of claim 1 , wherein the etching network has a pattern in which the size of the fine holes increases in the vertical flow direction of the cooling water in the cartridge assembly.

3. The de-mineralizer for a fuel cell of claim 1 , wherein the etching network has a pattern in which the distribution of the fine holes having the same size increases in the vertical flow direction of the cooling water in the cartridge assembly.

4. The de-mineralizer for a fuel cell of claim 1 , wherein the etching network is formed by winding the thin plate member having a plurality of perforated fine holes in a cylindrical shape, and the thin plate member has a non-etched portion for spot welding at both edge portions.

5. A method of manufacturing a de-mineralizer for a fuel cell equipped with a cartridge assembly including an external outer cartridge and an internal inner cartridge installed inside a housing filled with ion resin, the method comprising:
forming a plate-shaped etching network by winding a thin plate member having a plurality of perforated fine holes and a non-etched portion in which the fine holes are not formed;
joining the non-etched portion by winding the plate-shaped etching network in a cylindrical shape and then by spot welding only the non-etched portion; and
forming the inner cartridge and the outer cartridge, by performing injection molding of a plurality of frames for supporting the etching network on the outer circumferential surface of the etching network bonded to the non-etched portion,
wherein each of the plurality of frames has a pole shape and is vertically formed on the outer circumferential surface of the etching network from a top portion to a bottom portion of the etching networking.

6. The method of claim 5 , wherein the fine holes are perforated while leaving the non-etched portion for spot welding on both side edge portions of the thin plate member.

7. The method of claim 5 , wherein the sizes of the fine holes are differently formed from one side to the other side in a vertical direction of the thin plate member.

8. The method of claim 5 , wherein the fine holes having the same size are differently distributed from one side to the other side of upper and lower sides of the thin plate member.

9. A de-mineralizer for a fuel cell comprising:
a cartridge assembly including an external outer cartridge and an internal inner cartridge installed inside a housing filled with ion resin;
wherein at least one of the inner cartridge and the outer cartridge includes an etching network formed with a thin plate member in which a plurality of fine holes are perforated,
wherein, in the thin plate member, at least one of a size and distribution of the fine holes is formed differently depending on the respective positions based on a vertical flow direction of the cooling water,
wherein the de-mineralizer further includes a frame formed on an outer circumferential surface of the etching network to support the etching network, and
wherein the frame includes:
an upper frame member provided at an upper end portion of the etching network to support the upper end portion of the etching network;
a lower frame member provided at a lower end portion of the etching network to support the lower end of the etching network; and
a plurality of vertical frame members, each of which having a pole shape and vertically formed on the outer circumferential surface of the etching network from a top portion to a bottom portion of the etching networking, connecting the upper frame member and the lower frame member between the upper frame member and the lower frame member to support a side portion of the etching network, without including any horizontal frame member between the upper frame member and the lower frame member.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Na Sung Wook
• Park Hun Woo
• Kim Chi Myung

Classifications

• H01M8/04029

  Heat exchange using liquids · CPC title

• H01M2250/20

  Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M8/04044 Primary

  Purification of heat exchange media · CPC title

• Y02T90/32

  Cross-Sectional Technologies · mapped topic

• Y02P70/56

  Cross-Sectional Technologies · mapped topic