US 12,065,365 B2
Filter case, and water purifier and water softener using filter case
Kyung Seok Kang, Daejeon (KR); Nam Soo Park, Daejeon (KR); and Kyung Han Lee, Daejeon (KR)
Assigned to SIONTECH CO., LTD., Daejeon (KR); and KYUNGDONG NAVIEN CO., LTD., Pyeongtaek-si (KR)
Appl. No. 17/286,156
Filed by SIONTECH CO., LTD., Daejeon (KR)
PCT Filed Oct. 11, 2019, PCT No. PCT/KR2019/013375
§ 371(c)(1), (2) Date Apr. 16, 2021,
PCT Pub. No. WO2020/080756, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 10-2018-0125511 (KR), filed on Oct. 19, 2018.
Prior Publication US 2021/0387873 A1, Dec. 16, 2021
Int. Cl. C02F 1/469 (2023.01); C02F 1/00 (2023.01); C02F 1/46 (2023.01); C02F 5/00 (2023.01)
CPC C02F 1/4691 (2013.01) [C02F 1/008 (2013.01); C02F 1/4602 (2013.01); C02F 5/00 (2013.01); C02F 2201/005 (2013.01); C02F 2201/006 (2013.01); C02F 2209/02 (2013.01); C02F 2209/03 (2013.01); C02F 2209/40 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A filter case comprising:
a case having a cylindrical shape, the case having an accommodation space formed therein;
a first cover having an inlet formed in a center thereof, the first cover closing one side of the case;
a second cover having an outlet formed in a center thereof, the second cover closing an opposite side of the case;
a capacitive deionization (CDI) electrode accommodated in the accommodation space;
a first flow guide formed on an inner surface of the first cover so as to protrude;
a division unit comprising a partition plate located in the case, the division unit dividing the accommodation space into two portions;
a first accommodation portion formed between the first cover and the partition plate in the accommodation space;
a second accommodation portion formed between the second cover and the partition plate in the accommodation space;
a second flow guide formed on one surface of the partition plate so as to protrude;
one or more division plates disposed in the first accommodation portion and the second accommodation portion;
division-plate flow grooves formed in circumferential surfaces of the division plates so as to be arranged at regular intervals;
division-plate discharge holes formed through centers of the division plates; and
a seating protrusion formed on one surface or on both opposite surfaces of each of the division plates to define a position of a CDI unit.