Reverse osmosis filtering module and reverse osmosis filter comprising same

Patent metadata

Field	Value
Publication number	US-11266953-B2
Application number	US-201816754969-A
Country	US
Kind code	B2
Filing date	Oct 11, 2018
Priority date	Oct 12, 2017
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A reverse osmosis filtering module includes: a purified water discharge pipe in which a purified water discharge path is formed, and which has a communication hole that is formed on an outer periphery thereof and communicates with the purified water discharge path; a reverse osmosis filtering part including a reverse osmosis filtering member in which a purified water flow space is formed, and which is wound around the purified water discharge pipe such that the purified water flow space communicates with the communication hole; a first flow channel formation cap provided at one side and having an inlet hole; and a second flow channel formation cap provided at the other side of the reverse osmosis filtering part and having an outlet hole.

First claim

What is claimed is:

1. A reverse osmosis filtering module, comprising:
a purified water discharge pipe having a container shape in which a purified water discharge path is formed, and which has a communication hole that is formed on an outer periphery of the purified water discharge pipe and communicates with the purified water discharge path, one end of the purified water discharge path being opened and the other end of the purified water discharge path being closed;
a reverse osmosis filtering part including a reverse osmosis filtering member in which a purified water flow space is formed, which is coupled to the purified water discharge pipe such that the purified water flow space communicates with the communication hole, and which is wound around the purified water discharge pipe multiple times to be formed of a cylindrical shape, the reverse osmosis filtering member having outer surfaces which face each other and between which a flow channel through which water flows is formed;
a first flow channel formation cap coupled to one side of the reverse osmosis filtering part, and having an inlet hole connected to the flow channel such that raw water is introduced into the flow channel; and
a second flow channel formation cap coupled to the other side of the reverse osmosis filtering part, and having an outlet hole connected to the flow channel such that domestic water, which includes a remaining part of the raw water that has failed to pass through the reverse osmosis filtering member and failed to be filtered, is discharged from the flow channel,
wherein the first and the second flow channel formation caps are configured such that a part of the raw water introduced into the flow channel flows into the purified water flow space through the reverse osmosis filtering member, becomes purified water, and then flows through the purified water flow space, and such that the domestic water, which includes the remaining part of the raw water that has failed to pass through the reverse osmosis filtering member and failed to be filtered, flushes the reverse osmosis filtering member while flowing through the flow channel, and
wherein the inlet hole is formed at a radial-direction outer side of the first flow channel formation cap such that the raw water is supplied to a radial-direction outer side of the flow channel of the reverse osmosis filtering part and the outlet hole is formed at a radial-direction inner side of the second flow channel formation cap such that the domestic water is discharged from a radial-direction inner side of the flow channel of the reverse osmosis filtering part, the inlet hole and the outlet hole not being aligned with each other, and the radial-direction being from a central axis of the purified water discharge pipe, or
the inlet hole is formed at a radial-direction inner side of the first flow channel formation cap such that the raw water is supplied to a radial-direction inner side of the flow channel of the reverse osmosis filtering part and the outlet hole is formed at a radial-direction outer side of the second flow channel formation cap such that the domestic water is discharged from a radial-direction outer side of the flow channel of the reverse osmosis filtering part, the inlet hole and the outlet hole not being aligned with each other, and the radial-direction being from the central axis of the purified water discharge pipe.

2. The reverse osmosis filtering module of claim 1 , wherein the inlet hole and the outlet hole are formed along a circumferential direction on the first flow channel formation cap and the second flow channel formation cap, respectively.

3. The reverse osmosis filtering module of claim 1 , wherein the first flow channel formation cap includes a first insertion portion into which the one side of the reverse osmosis filtering part is inserted and which communicates with the inlet hole, and
wherein the second flow channel formation cap includes a second insertion portion into which the other side of the reverse osmosis filtering part is inserted and which communicates with the outlet hole.

4. The reverse osmosis filtering module of claim 3 , wherein a first sealing space to be filled with a sealing material that seals a corresponding portion of the one side of the reverse osmosis filtering part is formed in a portion of the first insertion portion that does not communicate with the inlet hole, and
wherein a second sealing space to be filled with a sealing material that seals a corresponding portion of the other side of the reverse osmosis filtering part is formed in a portion of the second insertion portion that does not communicate with the outlet hole.

5. The reverse osmosis filtering module of claim 4 , wherein a first partition wall defining at least a portion of the first sealing space is formed in the first insertion portion, and
wherein a second partition wall defining at least a portion of the second sealing space is formed in the second insertion portion.

6. The reverse osmosis filtering module of claim 5 , wherein a stepped portion is formed in at least one of the one side and the other side of the reverse osmosis filtering part such that at least parts of the one side and the other side of the reverse osmosis filtering part are inserted into the first sealing space and the second sealing space, respectively, to prevent the sealing material from leaking through the inlet hole or the outlet hole.

7. The reverse osmosis filtering module of claim 1 , wherein a through-hole through which the purified water discharge pipe passes is formed on at least one of the first flow channel formation cap and the second flow channel formation cap.

8. A reverse osmosis filter, comprising:
the reverse osmosis filtering module of claim 1 ; and
a housing configured to accommodate the reverse osmosis filtering module therein, the housing having an introduction port communicating with the inlet hole of the first flow channel formation cap, a purified water discharge port communicating with the opened one side of the purified water discharge path of the purified water discharge pipe, and a domestic water discharge port communicating with the outlet hole of the second flow channel formation cap.

9. The reverse osmosis filter of claim 8 , wherein the reverse osmosis filtering module is provided with a sealing member that seals a gap between the reverse osmosis filtering module and the housing to prevent raw water introduced into the introduction port from being discharged to the purified water discharge port or the domestic water discharge port through the gap between the reverse osmosis filtering module and the housing.

10. A reverse osmosis filter, comprising:
the reverse osmosis filtering module of claim 2 ; and
a housing configured to accommodate the reverse osmosis filtering module therein, the housing having an introduction port communicating with the inlet hole of the first flow channel formation cap, a purified water discharge port communicating with the opened one side of the purified water discharge path of the purified water discharge pipe, and a domestic water discharge port communicating with the outlet hole of the second flow channel formation cap.

11. The reverse osmosis filter of claim 10 , wherein the reverse osmosis filtering module is provided with a sealing member that seals a gap between the reverse osmosis filtering module and the housing to prevent raw water introduced into the introduction port from being discharged to the purified water discharge port or the domestic water discharge port through the gap between the reverse osmosis filtering module and the housing.

12. A reverse osmosis filter, comprising:
the reverse osmo

Assignees

• Coway Co Ltd
• Toray Advanced Mat Korea Inc

Inventors

• Cho Sung-Kon
• Yun Sung-Han
• Lee Hae-Sun
• Lee Sun-Yong
• Kang Sang-Hyeon
• Han Doo-Won
• Lee In-Tak
• Kim Gi-Lyang
• Kim Dong-Gyu
• Kim Kang-Jin
• Kim Jong-Kwan
• Moon Jae-Hoon
• Lee Hee-Kyung

Classifications

• B01D61/081 Primary

  used at home, e.g. kitchen · CPC title

• B01D2313/041

  Gaskets or O-rings · CPC title

• B01D2313/201

  Closed housing, vessels or containers · CPC title

• B01D61/025 Primary

  Reverse osmosis; Hyperfiltration · CPC title

• B01D2313/21

  Specific headers, end caps · CPC title