WO2024252812A1 - Electrolytic solution generation device - Google Patents

Abstract

The present disclosure provides an electrolytic solution generation device capable of improving the efficiency of generating an electrolytic solution in an electrolysis unit. An electrolytic solution generation device (100) according to the present disclosure comprises an electrolysis unit (1), an elastic body, and a housing (3). The electrolysis unit (1) electrolyzes a liquid. The elastic body presses the electrolysis unit (1) in a first direction (D1). The electrolysis unit (1) and the elastic body are disposed inside the housing (3). The elastic body has a protrusion (22) for positioning at least a part of the electrolysis unit (1). At least a part of the protrusion (22) is provided outside the end edge (211) of the elastic body (2) in a second direction (D3) intersecting the first direction (D1).

Description

Electrolytic liquid generator

This disclosure relates to an electrolytic liquid generating device.

　Conventionally, an ozone water generator is known as an electrolytic liquid generator that generates ozone water (i.e., an example of an electrolytic liquid) in which ozone (i.e., an example of an electrolytic product) is dissolved in water. The electrolysis unit has a conductive film interposed between two electrodes. Then, by generating a potential difference between the two electrodes while the electrolysis unit is immersed in water, an electrolytic process is performed that causes an electrochemical reaction in the water, and ozone water is generated (see, for example, Patent Document 1). The electrolysis unit is held by an elastic body that has positioning protrusions.

JP 2021-127501 A

However, in the electrolytic liquid generating device of Patent Document 1, the elastic body is also located outside the electrolytic section. Therefore, the force with which the elastic body presses the electrolytic section may not be uniform, which may reduce the efficiency of generating the electrolytic liquid.

The present disclosure aims to provide an electrolytic liquid generating device that can improve the efficiency of generating electrolytic liquid in the electrolysis section.

An electrolytic liquid generating device according to one aspect of the present disclosure includes an electrolytic unit, an elastic body, and a housing. The electrolytic unit electrolyzes the liquid. The elastic body presses the electrolytic unit in a first direction, which is the stacking direction of the electrolytic unit. The electrolytic unit and the elastic body are disposed inside the housing. The elastic body has a protrusion that positions at least a portion of the electrolytic unit. At least a portion of the protrusion is provided outside an edge portion of the elastic body in a second direction that intersects with the first direction.

The electrolytic liquid generating device according to one aspect of the present disclosure makes it possible to improve the efficiency of generating electrolytic liquid in the electrolysis section.

FIG. 1 is an exploded perspective view of an electrolytic liquid generating device according to an embodiment. FIG. 2 is a perspective view of an elastic body of the electrolytic liquid generating device according to the embodiment. FIG. 3 is a perspective view of a cover of the electrolytic liquid production device according to the embodiment. FIG. 4 is a partial end view of the electrolytic liquid production device according to the embodiment, the normal direction being the longitudinal direction. FIG. 5 is a partial end view of the electrolytic solution production device according to the embodiment, with the short side direction being the normal direction.

The electrolyte liquid generating device according to the embodiment will be described in detail below with reference to the drawings. However, each figure described in the following embodiment is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Furthermore, the embodiment described below is merely one example of an embodiment of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

(Embodiment)
(1) Overview First, an overview of the electrolytic liquid generation device 100 according to the embodiment will be described with reference to Fig. 1, Fig. 2, and Fig. 4. Fig. 1 is an exploded perspective view of the electrolytic liquid generation device 100 according to the embodiment. Fig. 2 is a perspective view of an elastic body 2 of the electrolytic liquid generation device 100 according to the embodiment. Fig. 4 is a partial end view of the electrolytic liquid generation device 100 according to the embodiment, with the longitudinal direction being the normal direction.

The electrolytic liquid generating device 100 according to the embodiment generates an electrolytic liquid by subjecting a liquid to electrolytic processing. As an example of the present embodiment, the electrolytic liquid generating device 100 is an ozone water generating device that uses tap water supplied from a waterworks as the liquid and generates ozone water as the electrolytic liquid. The electrolytic liquid generating device 100, which is an ozone water generating device, generates ozone (i.e., an example of an electrolysis product) by electrolyzing tap water, and dissolves the ozone in the tap water to generate ozone water. Ozone water is effective for sterilization, deodorization, and decomposition of organic matter, and is therefore widely used in various fields such as water treatment, hygiene, food, and medicine.

As shown in Figs. 1 and 4, the electrolytic liquid generating device 100 according to the embodiment includes an electrolysis unit 1, an elastic body 2, a housing 3, and a power supply unit 4. The electrolysis unit 1 includes a pair of electrodes, a first electrode and a second electrode, and a conductive film 12 located between the pair of electrodes. In the embodiment, the first electrode is an anode 13, and the second electrode is a cathode 11. The electrolysis unit 1 electrolyzes the liquid. The electrolysis unit 1 is disposed inside the housing 3. The power supply unit 4 supplies power to the electrolysis unit 1 for electrolyzing the liquid.

As shown in FIG. 4, the elastic body 2 and the cover 32 of the housing 3 press the electrolysis unit 1 in the direction D1. As shown in FIGS. 1 and 2, the elastic body 2 has an elongated shape and has a protrusion 22 on the outside of the end edge 211 in the direction D3, which is the short side direction of the elastic body 2. This positions the electrolysis unit 1 by the elastic body 2. Also, as shown in FIG. 4, since the protrusion 22 and the electrolysis unit 1 do not overlap in the direction D1, the protrusion 22 is unlikely to affect the force with which the elastic body 2 and the cover 32 press the electrolysis unit 1 in the direction D1. In other words, the uniformity in the direction D3 of the force with which the elastic body 2 and the cover 32 press the electrolysis unit 1 in the direction D1 is improved. Therefore, bias in the current density in the electrolysis unit 1 is unlikely to occur, and the electrolysis efficiency of the electrolysis unit 1 can be improved.

(2) Details Next, the details of the electrolytic liquid generating device 100 according to the embodiment will be described with reference to Figs. 1 to 5. Fig. 3 is a perspective view of the cover 32 of the electrolytic liquid generating device 100 according to the embodiment. Fig. 5 is a partial end view of the electrolytic liquid generating device 100 according to the embodiment with the short side direction as the normal direction. In the following description, the stacking direction of the cathode 11, the conductive film 12, and the anode 13 in the electrolytic unit 1 described later is defined as direction D1, the longitudinal direction of the housing 3 described later is defined as direction D2, and the short side direction (i.e., width direction) of the housing 3 is defined as direction D3. The direction D1 corresponds to the first direction. The direction D2 corresponds to the third direction. Moreover, the direction D3 corresponds to the second direction. However, these directions are not intended to limit the directions when the electrolytic liquid generating device 100 is used. Moreover, the arrows indicating "D1", "D2", and "D3" in the drawings are merely indicated for the purpose of explanation, and none of them have any substance.

As shown in FIG. 1, the electrolytic liquid generating device 100 according to the first embodiment includes an electrolytic section 1, an elastic body 2, a housing 3, a power supply section 4, and a number of O-rings 5 (two O-rings 5 in the illustrated example).

(2.1) Housing The electrolysis unit 1 and the elastic body 2 are disposed inside the housing 3. The housing 3 includes a case 31 and a cover 32, as shown in FIG.

The case 31 includes a case body 311. The case body 311 is formed in a hollow rectangular parallelepiped shape with one end in direction D1 (see the top surface in FIG. 1) open. That is, the case body 311 has a storage section 3110. Furthermore, a connection section 312 and a connection section 313 are formed at both ends of the case 31 in direction D2. A liquid inlet is formed in the connection section 312, and the inlet is connected to the storage section 3110. Furthermore, an electrolytic liquid outlet is formed in the connection section 313, and the outlet is connected to the storage section 3110. That is, the liquid that flows in from the inlet is electrolytically treated in the storage section 3110, and flows out from the outlet as electrolytic liquid.

As shown in Figs. 1 and 3, the cover 32 is a rectangular plate. The cover 32 contacts the case body 311 along the direction D1 and covers the opening 3111 of the case body 311. In addition, the inner surface 33 of the cover 32 that faces the opening 3111 of the case body 311 has a plurality of rows of protrusions 331 (see Figs. 3 and 4).

The case body 311 also has a pair of through holes 3112 for passing the pair of electrode pins 41 through.

The case 31 and cover 32 are made of a non-conductive resin such as acrylic.

(2.2) Elastic body and electrolysis unit The housing section 3110 of the case 31 houses the elastic body 2, the power supply body 44 of the power supply unit 4, the anode 13, the conductive film 12, and the cathode 11. More specifically, the elastic body 2, the power supply body 44, the anode 13, the conductive film 12, and the cathode 11 are layered in this order along the direction D1.

The elastic body 2 is formed in an elongated shape in the direction D2 using an elastic material such as rubber. That is, the short side direction of the elastic body 2 is the direction D3. As shown in Figs. 1 and 2, the elastic body 2 includes a rectangular parallelepiped main body 21, a plurality of protrusions 22 (i.e., an example of a first protrusion) and a plurality of protrusions 23 (i.e., an example of a second protrusion). Each of the plurality of protrusions 22 (six protrusions 22 in Figs. 1 and 2) is formed on one edge portion 212 in the direction D1 of the main body 21, outside one of the two edge portions 211 in the direction D3. Here, "the plurality of protrusions 22 are outside the two edge portions 211 in the direction D3" means that none of the plurality of protrusions 22 overlaps with the edge portion 212 in a plan view from the direction D1. The plurality of protrusions 22 are positioning protrusions that position the electrolysis unit 1 in the direction D3. More specifically, the power supply body 44 and the anode 13 of the power supply unit 4, which will be described later, are located inside the multiple protrusions 22 in the direction D3.

Furthermore, each of the multiple protrusions 23 (two protrusions 23 in FIG. 1) is formed on the edge portion 212 in direction D1 of the main body 21, and on two edge portions 213 in direction D2. Here, "the multiple protrusions 23 are outside the two edge portions 213 in direction D2" means that none of the multiple protrusions 23 overlaps with the edge portion 212 in a plan view from direction D1. The multiple protrusions 23 are positioning protrusions that position the electrolysis unit 1 in direction D2. More specifically, the power supply body 44 and anode 13 of the power supply unit 4, which will be described later, are located inside the multiple protrusions 22 in direction D2.

Also, as shown in FIG. 2, one of the two protrusions 23 is positioned approximately in the center in the third direction D3. The other of the two protrusions 23 is positioned at one end in the third direction D3, that is, at a position offset from the center. In this way, by making the positions of the two protrusions 23 different in the third direction D3, it is possible to prevent the elastic body 2 from being attached in the opposite direction to the case 31 of the housing 3.

The edge portion 212 of the elastic body 2 is in contact with the power supply body 44 of the power supply unit 4, which will be described later. The elastic body 2 presses the power supply body 44 and the anode 13 in the direction D1.

The anode 13 is the first electrode of the electrolysis unit 1. The anode 13 is formed in a rectangular shape that is long in the direction D2. One surface of the anode 13 (i.e., the first surface) is in contact with the power supply body 44 of the power supply unit 4 described below, and at least a portion of the other surface (i.e., the second surface) is in contact with the conductive film 12. The anode 13 is formed, for example, by forming a conductive diamond film on a rectangular plate-shaped conductive substrate made of silicon.

The conductive film 12 is located between the anode 13 and the cathode 11. The conductive film 12 is, for example, a proton conductive ion exchange film. The conductive film 12 has a plurality of slits extending in the direction D3. The conductive film 12 is, for example, comb-shaped. The conductive film 12 includes a main piece 121 that is elongated in the direction D3 and a plurality of protrusions 122 whose longitudinal direction is the direction D3. The plurality of protrusions 122 are arranged at equal intervals along the direction D2. The extension direction of each of the plurality of protrusions 122 may be a direction that intersects with the direction D2, and does not necessarily have to coincide with the direction D3. The length of the protrusions 122 in the direction D3 is greater than the width of the anode 13 in the direction D3. That is, the length of the slits of the conductive film 12 in the direction D3 is greater than the width of the anode 13 in the direction D3.

The cathode 11 is the second electrode of the electrolysis unit 1. The cathode 11 is molded integrally with the electrode plate 42A and the spring unit 43A described below. The cathode 11 has a rectangular shape that is elongated in the direction D2, and is in contact with the conductive film 12 in the direction D1. The cathode 11 is made of a conductive material such as a titanium alloy.

The cathode 11 has a number of through holes 111 arranged at equal intervals along the direction D2. Each of the multiple through holes 111 has the same shape, for example, a V-shape. This allows at least a part of the interface between the cathode 11 and the conductive film 12 to come into contact with the liquid (for example, tap water). As a result, at least a part of the interface between the anode 13 and the conductive film 12 comes into contact with the liquid (for example, tap water). Therefore, ozone generated on the surface of the anode 13 is easily dissolved in the liquid (for example, tap water) in the space between the cathode 11 and the cover 32 (hereinafter referred to as the "main flow path"). In addition, it is possible to reduce the decrease in ozone generation efficiency caused by ozone gas remaining inside the electrolysis unit.

Furthermore, the width of the multiple through holes 111 of the cathode 11 in the direction D3 is greater than the width of the slits of the conductive film 12 in the direction D3. Therefore, in a plan view from the direction D1, the inside of the through hole 111 has a portion that does not overlap with either the conductive film 12 or the anode 13. That is, the electrolysis unit 1 has a through hole that penetrates the electrolysis unit 1 in the direction D1. Therefore, since a liquid (e.g., tap water) can pass through the electrolysis unit 1 along the direction D1, the ozone concentration in the ozone water in the storage portion 3110 of the case 31 is made uniform, and the generation efficiency of the ozone water is improved.

(2.3) Power Supply Unit The power supply unit 4 supplies power for electrolyzing the liquid to the electrolysis unit 1. As shown in Fig. 1, the power supply unit 4 includes a plurality of electrode pins 41 (two electrode pins 41 in the illustrated example), a plurality of electrode plates 42A, 42B (two electrode plates 42A, 42B in the illustrated example), a plurality of spring portions 43A, 43B (two spring portions 43A, 43B in the illustrated example), a power supply body 44, a plurality of nuts 45 (two nuts 45 in the illustrated example), a plurality of spring washers 46 (two spring washers 46 in the illustrated example), and a plurality of washers 47 (two washers 47 in the illustrated example). The plurality of electrode pins 41, the plurality of nuts 45, the plurality of spring washers 46, and the plurality of washers 47 correspond one-to-one.

Each of the multiple electrode pins 41 is elongated in direction D1. That is, the longitudinal direction of each electrode pin 41 is parallel to direction D1. Each electrode pin 41 has a flange portion 411, a threaded portion 412, and a shaft portion 413. In each electrode pin 41, the flange portion 411 is provided at a first end in direction D1 (see the upper end in FIG. 1). In each electrode pin 41, the threaded portion 412 is provided in a predetermined range including a second end in direction D1 (see the lower end in FIG. 1).

The electrode plates 42A and 42B have a through hole 421 through which the electrode pin 41 penetrates in the direction D1. More specifically, in a plan view from the direction D1, the through hole 421 has a shape that allows the shaft portion 413 to pass through but not the flange portion 411 to pass through. As a result, with the shaft portion 413 of the electrode pin 41 positioned in the through hole 421, at least the flange portion 411 abuts against the electrode plates 42A and 42B. The electrode plate 42A is electrically connected to the cathode 11 via the spring portion 43A. The electrode plate 42B is electrically connected to the power supply 44 via the spring portion 43B.

(3) Configuration of Elastic Body and Cover As shown in Fig. 3 and Fig. 4, the cover 32 has an inner surface 33 facing the storage portion 3110 of the case body 311. The cover 32 also has a plurality of convex rows 331 (three convex rows 331 in Fig. 3 and Fig. 4) on the inner surface 33. The plurality of convex rows 331 are aligned in the direction D3. The cover 32 also has a pair of protrusions 35 on the inner surface 33 that overlap with the pair of electrode pins 41 in a plan view from the direction D1.

Each of the multiple convex rows 331 includes multiple convex portions 332 aligned in direction D2, as shown in FIG. 3. Each convex portion 332 presses the cathode 11 in direction D1, as shown in FIG. 4. That is, the electrolysis unit 1 is sandwiched between the elastic body 2 and the multiple convex portions 332 of the cover 32 in direction D1. In each of the multiple convex rows 331, the multiple convex portions 332 are arranged at intervals in direction D2.

Here, of the multiple convex portion rows 331, each of the two convex portion rows 331 arranged at both ends in the direction D3 is referred to as an end row 331A. Each of the two end rows 331A includes multiple convex portions 332A. The two end rows 331A are not in contact with the end 34 of the inner surface 33 in the direction D3.

The protrusion 22 is disposed outside the position where it overlaps with the end row 331A in the direction D1. Here, "the protrusion 22 is disposed outside the position where it overlaps with the end row 331A in the direction D1" means that, as shown in FIG. 4, in a plan view from the direction D2, the protrusion 22 is located outside the imaginary line X1 extending in the direction D1 from the convex portion 332A included in the end row 331A. As a result, the force with which the cover 32 presses the electrolysis unit 1 in the direction D1 acts on the main body 21 of the elastic body 2, but is unlikely to act on the protrusion 22. Therefore, the electrolysis unit 1 is evenly pressed in the direction D3 by the main body 21 of the elastic body 2 and the multiple convex rows 331 of the cover 32. Therefore, the distance between the cathode 11 and the anode 13 in the electrolysis unit 1 is likely to be uniform in the direction D3, and bias in the current density is unlikely to occur. This improves the ozone generation efficiency of the electrolysis unit 1.

Also, as shown in FIG. 5, the protrusions 23 are disposed on the outside of the two end edges 213 of the elastic body 2 in the direction D2. Therefore, the electrolysis unit 1 is evenly pressed in the direction D2 by the main body 21 of the elastic body 2 and the multiple protrusions 332 included in the multiple protrusion rows 331 of the cover 32. This makes it easier for the distance between the cathode 11 and the anode 13 in the electrolysis unit 1 to be uniform in the direction D2, making it less likely that bias in current density will occur. This improves the ozone generation efficiency of the electrolysis unit 1.

(4) Effects The electrolytic liquid generating device 100 according to the embodiment includes an electrolysis unit 1, an elastic body 2, and a housing 3. The electrolysis unit 1 electrolyzes the liquid. The elastic body 2 holds the electrolysis unit 1 in direction D1. The housing 3 has the electrolysis unit 1 and the elastic body 2 disposed therein. The elastic body 2 has a protrusion 22 that positions at least a portion of the electrolysis unit 1. At least a portion of the protrusion 22 is provided outside an edge portion 213 of the elastic body 2 in direction D3.

As a result, the force with which the elastic body 2 presses the electrolysis unit 1 in the direction D1 is less likely to be biased in the direction D3. Therefore, bias in the current density in the electrolysis unit 1 is less likely to occur, improving the efficiency of generating ozone water.

In addition, in the electrolytic liquid generating device 100 according to the embodiment, the elastic body 2 has an elongated shape when viewed from a plane in the direction D1, and the direction D3 is the short side direction of the elastic body 2.

As a result, the force with which the elastic body 2 presses the electrolysis unit 1 in the direction D1 is less likely to be biased in the short direction of the elastic body 2. Therefore, in the electrolysis unit 1, bias in the current density is less likely to occur in the direction D3, which is susceptible to bias in current density, improving the efficiency of generating ozone water.

In addition, in the electrolytic liquid generating device 100 according to the embodiment, the housing 3 includes a cover 32 having multiple rows of protrusions 331 extending in direction D2. The electrolytic unit 1 is sandwiched between the cover 32 and the elastic body 2. The multiple rows of protrusions 331 of the cover 32 press the electrolytic unit 1 in direction D1. In direction D3, each of the multiple protrusions 22 is located outside the two end rows 331A located at both ends of the multiple rows of protrusions 331.

As a result, the force with which the cover 32 presses the electrolysis unit 1 in direction D1 is applied evenly in direction D3 to the main body 21 of the elastic body 2 excluding the protrusions 22. Therefore, the force with which the cover 32 and the elastic body 2 press the electrolysis unit 1 in direction D1 becomes uniform in direction D3. Therefore, bias in the current density is less likely to occur in the electrolysis unit 1, improving the efficiency of generating ozone water.

In addition, in the electrolytic liquid generating device 100 according to the embodiment, the elastic body 2 has a protrusion 23 on the outside of the edge portion 213 in the direction D2, which positions at least a portion of the electrolytic portion 1.

As a result, the force with which the elastic body 2 presses the electrolysis unit 1 in direction D1 is less likely to be biased in direction D2. Therefore, bias in the current density is less likely to occur in any direction in the electrolysis unit 1, improving the efficiency of ozone water production.

In addition, in the electrolytic liquid generating device 100 according to the embodiment, the electrolytic unit 1 includes an anode 13 and a cathode 11 that face each other in the direction D1. At least a portion of the electrolytic unit 1 that is positioned by the protrusion 22 includes the anode 13.

Therefore, bias in the pressing force in the direction D1, which is the direction in which the anode 13 and the cathode 11 face each other in the electrolysis unit 1, is unlikely to occur. Therefore, bias in electrical resistance is unlikely to occur in the electrolysis unit 1, improving the efficiency of ozone water production. Furthermore, by having the elastic body 2 position the anode 13 in the electrolysis unit 1, the above-mentioned effects can be achieved even if the elastic body 2 does not position the cathode 11. Furthermore, in the electrolytic liquid production device 100 according to the embodiment, since the anode 13 is smaller than the cathode 11, by not having the elastic body 2 position the cathode 11, the area of the cathode 11 can be maximized so that the efficiency of ozone water production is not reduced.

(Modification)
(1) In the electrolytic liquid generating device 100 according to the embodiment, the elastic body 2 has a plurality of protrusions 22, but there may be only one protrusion 22. In addition, the plurality of protrusions 22 of the elastic body 2 may be provided on both of the two end edge portions 211 of the main body 21, or may be provided on only one of the two end edge portions 211.

Similarly, the elastic body 2 in the embodiment has multiple protrusions 23, but there may be only one protrusion 23. Furthermore, the multiple protrusions 23 of the elastic body 2 may be provided on both of the two end edge portions 213 of the main body 21, or may be provided on only one of the two end edge portions 213.

(2) In the electrolytic liquid generating device 100 according to the embodiment, each of the multiple protrusions 22 in the elastic body 2 is outside the two edge portions 211 in the direction D3, but at least one of the protrusions 22 may be partially outside the edge portions 211 and partially inside the edge portions 211. That is, it is sufficient that each of the multiple protrusions 22 is at least partially outside the two edge portions 211 in the direction D3. In other words, in a plan view from the direction D1, each of the multiple protrusions 22 has at least a portion that does not overlap with the main body 21 of the elastic body 2. Even with this configuration, the multiple protrusions 22 can position the electrolytic unit 1. Furthermore, compared to a case in which all of the multiple protrusions 22 are inside the two edge portions 211 in the direction D3, the force with which the elastic body 2 presses the electrolytic unit 1 in the direction D1 is less likely to be biased in the direction D3.

Similarly, in the elastic body 2, each of the multiple protrusions 23 is outside the two edge portions 213 in the direction D2, but at least one protrusion 23 may be partially outside the edge portion 213 and partially inside the edge portion 213. That is, it is sufficient that each of the multiple protrusions 23 is at least partially outside the two edge portions 213 in the direction D2. Even with this configuration, the multiple protrusions 23 can position the electrolysis unit 1. Furthermore, compared to when all of the multiple protrusions 23 are inside the two edge portions 213 in the direction D2, the force with which the elastic body 2 presses the electrolysis unit 1 in the direction D1 is less likely to be biased in the direction D2.

(3) In the electrolytic liquid generating device 100 according to the embodiment, the cover 32 has three rows of protrusions 331, but the number of rows of protrusions 331 provided on the cover 32 may be two, or four or more. Each row of protrusions 331 has a plurality of protrusions 332 spaced apart in the direction D2, but one or more of the plurality of rows of protrusions 331 may include a long protrusion in the direction D2. It is preferable that the rows of protrusions 331 do not block the through-holes 111 of the cathode 11.

(4) In the electrolytic liquid generating device 100 according to the embodiment, the protrusions 22 are positioned outside the position overlapping with the end row 331A in the direction D1, but the protrusions 22 may be positioned at a position where at least a portion of the protrusions 22 overlaps with the end row 331A in the direction D1. Even in this case, the force with which the elastic body 2 presses the electrolytic unit 1 in the direction D1 is less likely to be biased in the direction D3. Therefore, bias in the current density is less likely to occur in the electrolytic unit 1, improving the efficiency of generating ozone water.

(5) In the electrolytic liquid generating device 100 according to the embodiment, the liquid is tap water and the electrolytic liquid is ozone water, but as long as the liquid can be electrolytically treated to generate the electrolytic liquid, the combination of the liquid and the electrolytic liquid may be any combination of two liquids.

(Aspects)
The electrolytic liquid generating device (100) according to the first aspect includes an electrolytic unit (1), an elastic body (2), and a housing (3). The electrolytic unit (1) electrolyzes a liquid. The elastic body (2) holds the electrolytic unit (1) in a first direction (D1). The housing (3) has the electrolytic unit (1) and the elastic body (2) disposed therein. The elastic body (2) has a protrusion (22) that positions at least a portion of the electrolytic unit (1). At least a portion of the protrusion (22) is provided outside an edge portion (211) of the elastic body (2) in a second direction (D3) that intersects with the first direction (D1).

In the electrolytic liquid generating device (100) according to the above aspect, the force with which the elastic body (2) presses the electrolytic section (1) in the first direction (D1) is less likely to be biased in the second direction (D3). Therefore, bias in the current density in the electrolytic section (1) is less likely to occur, improving the efficiency of generating ozone water.

In the electrolytic liquid generating device (100) according to the second aspect, in the first aspect, the elastic body (2) has an elongated shape when viewed in a plan view from the first direction (D1). The second direction (D3) is the short side direction of the elastic body (2).

In the electrolytic liquid generating device (100) according to the above aspect, the force with which the elastic body (2) presses the electrolytic section (1) in the first direction (D1) is unlikely to be biased in the short direction of the elastic body (2). Therefore, in the electrolytic section (1), bias in the current density is unlikely to be generated in the second direction (D3), which is susceptible to bias in the current density, and the efficiency of generating ozone water is improved.

In the electrolytic liquid generating device (100) according to the third aspect, in the first or second aspect, the housing (3) includes a cover (32) having a plurality of convex rows (331) extending in a third direction (D2) intersecting with the second direction (D3). The electrolytic section (1) is sandwiched between the cover (32) and the elastic body (2). The plurality of convex rows (331) of the cover (32) press the electrolytic section (1) in the first direction (D1). In the second direction (D3), the projection (22) is positioned to overlap with an end row (331A) located at the end of the plurality of convex rows (331) or to the outside of the end row (331A).

In the electrolytic liquid generating device (100) according to the above aspect, the force with which the cover (32) presses the electrolytic unit (1) in the first direction (D1) is evenly applied in the second direction (D3) to the portion of the elastic body (2) excluding the protrusion (22). Therefore, the force with which the cover (32) and the elastic body (2) press the electrolytic unit (1) in the first direction (D1) is even in the second direction (D3). Therefore, bias in the current density is less likely to occur in the electrolytic unit (1), improving the efficiency of generating ozone water.

In the electrolytic liquid generating device (100) according to the fourth aspect, in any of the first to third aspects, when the protrusion (22) is the first protrusion, the elastic body (2) has a second protrusion (23) that positions at least a part of the electrolytic section (1) on the outside of the edge portion (213) in the third direction (D2) that intersects with the second direction (D3).

In the electrolytic liquid generating device (100) according to the above aspect, the force with which the elastic body (2) presses the electrolytic section (1) in the first direction (D1) is also unlikely to be biased in the third direction (D2). Therefore, bias in the current density is unlikely to occur in any direction in the electrolytic section (1), improving the efficiency of generating the electrolytic liquid.

In the electrolytic liquid generating device (100) according to the fifth aspect, in any of the first to fourth aspects, the electrolytic section (1) includes a first electrode (13) and a second electrode (11) that face each other in the first direction (D1). At least a portion of the electrolytic section (1) that is positioned by the protrusion (22) includes the first electrode (13).

The electrolytic liquid generating device (100) according to the above aspect is less likely to cause bias in the pressing force in the first direction (D1), which is the direction in which the first electrode (13) and the second electrode (11) face each other in the electrolytic section (1). Therefore, bias in electrical resistance is less likely to occur in the electrolytic section (1), improving the efficiency of generating the electrolytic liquid. In addition, by positioning the first electrode (13) of the electrolytic section (1), it is not necessarily necessary for the elastic body (2) to position the cathode (11).

In the electrolytic liquid generating device (100) according to the sixth aspect, in the fifth aspect, the first electrode (13) is an anode.

In the electrolytic liquid generating device (100) according to the above aspect, in an electrolytic liquid generating device (100) in which the cathode (11) is larger than the anode (13), the cathode (11) is not positioned by the elastic body (2), so that it is possible to design the cathode (11) so as to maximize the area of the electrolytic section (1).

REFERENCE SIGNS LIST 100 Electrolytic liquid generating device 1 Electrolysis section 11 Cathode 111 Through hole 12 Conductive film 13 Anode 2 Elastic body 21 Main body 211 Edge portion 212 Edge portion 213 Edge portion 22 Protrusion 23 Protrusion 3 Housing 31 Case 311 Case main body 3110 Storage section 3111 Opening 3112 Through hole 312 Connection section 313 Connection section 32 Cover 33 Inner surface 331 Convex section row 331A End row 332 Convex section 332A Convex section 34 End section 35 Protrusion 4 Power supply section 41 Electrode pin 411 Flange section 412 Screw section 413 Shaft section 42A Electrode plate 42B Electrode plate 421 Through hole 43A Spring portion 43B Spring portion 44 Power supply body 45 Nut 46 Spring washer 47 Washer D1 Direction (first direction)
D3 direction (second direction)
D2 direction (third direction)

Claims (6)

an electrolysis unit that electrolyzes the liquid;
An elastic body pressing the electrolysis unit in a first direction, which is a stacking direction of the electrolysis unit;
a housing in which the electrolysis unit and the elastic body are disposed,
the elastic body has a protrusion that positions at least a part of the electrolysis unit,
At least a portion of the protrusion is provided outside an edge portion of the elastic body in a second direction intersecting with the first direction.
Electrolytic liquid generator. When viewed in a plan view from the first direction,
The elastic body has an elongated shape,
The second direction is a short side direction of the elastic body.
The electrolytic liquid generating device according to claim 1 . the housing includes a cover having a plurality of rows of protrusions extending in a third direction intersecting the second direction,
The electrolysis unit is sandwiched between the cover and the elastic body,
The plurality of protruding portions of the cover press the electrolysis portion in the first direction,
In the second direction, the protrusion is located at a position overlapping with an end row located at an end of the plurality of convex portion rows or located outside the end row.
3. The electrolytic liquid generating device according to claim 1 or 2. When the protrusion is a first protrusion, the elastic body has a second protrusion that positions at least a part of the electrolysis unit on the outside of an edge portion in a third direction intersecting with the second direction.
3. The electrolytic liquid generating device according to claim 1 or 2. The electrolysis unit includes a first electrode and a second electrode facing each other in the first direction,
At least a portion of the electrolysis unit positioned by the protrusion includes the first electrode.
3. The electrolytic liquid generating device according to claim 1 or 2. The first electrode is an anode.
The electrolytic liquid generating device according to claim 5 .

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