Electrolytic solution generation device

Patent metadata

Field	Value
Publication number	US-12385148-B2
Application number	US-202017789925-A
Country	US
Kind code	B2
Filing date	Nov 10, 2020
Priority date	Feb 14, 2020
Publication date	Aug 12, 2025
Grant date	Aug 12, 2025

Abstract

An electrolytic liquid generation device includes a stacked body in which a conductive membrane is interposed between a cathode and an anode constituting electrodes, an electrolytic part that electrolyzes a liquid, and a housing in which the electrolytic part is disposed. The housing includes a flow path in which a liquid flowing direction intersects a stacking direction of the stacked body. The electrolytic part includes a slot open to the flow path in which a part of the interface between the conductive membrane and the electrode is exposed. In the housing, a positioning member is disposed, and the positioning member positions the electrode.

First claim

The invention claimed is:

1. An electrolytic liquid generation device comprising:
an electrolytic part that electrolyzes a liquid, the electrolytic part including a stacked body, the stacked body including (i) a cathode and an anode constituting electrodes adjacent to each other and (ii) a conductive membrane interposed between the cathode and the anode; and
a housing in which the electrolytic part is disposed, wherein:
the housing includes:
an inlet port through which a liquid to be supplied to the electrolytic part flows in;
an outlet port through which an electrolytic liquid generated in the electrolytic part flows out; and
a flow path in which a liquid flowing direction intersects a stacking direction of the stacked body,

the electrolytic part includes a slot that is open to the flow path and is formed to cause at least a part of interfaces between the conductive membrane and the respective electrodes to be exposed,
in the housing, a positioning member is disposed with respect to the housing,
the positioning member includes a plurality of first protrusions, each of which protrudes in the stacking direction,
two or more of the plurality of first protrusions are provided at each of longitudinal sides of one of the cathode or the anode, the longitudinal sides extending in the liquid flowing direction, and
a top surface of each of the plurality of first protrusions faces a bottom face of another of the cathode or the anode.

2. The electrolytic liquid generation device according to claim 1 , wherein
the stacked body includes a power feeder that is in contact with one of the electrodes, and
the power feeder is positioned by the positioning member.

3. The electrolytic liquid generation device according to claim 1 , comprising a space disposed between an outer periphery of at least either the cathode or the anode and an inner face of the housing, the space inhibiting the liquid from remaining.

4. The electrolytic liquid generation device according to claim 2 , wherein the power feeder has a width in a direction intersecting the liquid flowing direction substantially equal to a width of the electrodes in contact with the power feeder.

5. The electrolytic liquid generation device according to claim 2 , wherein
the positioning member includes a second protrusion that protrudes in the stacking direction and positions the power feeder, and
the power feeder includes an avoidance part that avoids contact with the second protrusion with respect to the stacking direction.

6. The electrolytic liquid generation device according to claim 5 , wherein the avoidance part is formed in a hole shape into which the second protrusion is inserted in the stacking direction.

7. The electrolytic liquid generation device according to claim 1 , wherein the conductive membrane is positioned by the positioning member.

8. The electrolytic liquid generation device according to claim 1 , wherein
an elastic body is disposed in the housing, the elastic body being in contact with one side of the electrolytic part in the stacking direction of the stacked body, and
the positioning member is the elastic body.

9. The electrolytic liquid generation device according to claim 1 , wherein each of the plurality of first protrusions has a cylindrical shape.

10. The electrolytic liquid generation device according to claim 5 , wherein a second protrusion positions at least either the cathode or the anode of the electrodes with respect to the liquid flowing direction.

11. The electrolytic liquid generation device according to claim 10 , wherein the second protrusion has a rectangular shape when viewed from the stacking direction.

12. The electrolytic liquid generation device according to claim 1 , wherein
at least either the cathode or the anode of the electrodes is formed in a polygonal shape, and
at least one of the plurality of first protrusions is disposed near a corner of at least either the cathode or the anode of the electrodes.

13. The electrolytic liquid generation device according to claim 1 , wherein the plurality of first protrusions include a guide part that guides at least either the cathode or the anode of the electrodes to an assembly position.

14. The electrolytic liquid generation device according to claim 1 , wherein the positioning member has a gap disposed between the plurality of first protrusions and an outer edge of the positioning member.

15. The electrolytic liquid generation device according to claim 1 , wherein:
a width of the another of the cathode or the anode is greater than a width of the one of the cathode or the anode, and
the top surface of each of the plurality of first protrusions is in contact with the bottom face of the another of the cathode or the anode.

16. The electrolytic liquid generation device according to claim 1 , wherein:
a width of the another of the cathode or the anode is greater than a width of the one of the cathode or the anode, and
a gap is provided between the top surface of each of the plurality of first protrusions and the bottom face of the another of the cathode or the anode.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Inagaki Kenichiro
• Imahori Osamu
• Yamaguchi Tomohiro
• Mori Shunsuke
• Nagata Minoru
• Kuroda Mami

Classifications

• C25B9/07

  Common duct cells · CPC title

• C25B9/13

  Single electrolytic cells with circulation of an electrolyte · CPC title

• C25B9/23

  comprising ion-exchange membranes in or on which electrode material is embedded · CPC title

• C02F2307/12

  as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners · CPC title

• C02F2001/46147

  Diamond coating · CPC title