Electrolytic liquid generator

Abstract

To provide an electrolytic liquid generator capable of being assembled more easily.SOLUTION: An electrolytic liquid generator 1 includes an electrolytic part 80 that has a laminate 81 in which a conductive membrane 86 is interposed between mutually adjacent electrodes 84, 85, and that electrolyzes a liquid, and a housing 10 in which the electrolytic part 80 is arranged inside. The housing 10 has a case 20 having an opening 332a through which the electrolytic part 80 can be inserted and in which the electrolytic part 80 is housed, and a lid 60 covering the opening 332a of the case 20. The case 20 is provided with a guide part 353 that extends in the stacking direction of the laminate 81 and guides the housing of the electrolytic part 80.SELECTED DRAWING: Figure 12

Description

[Technical field]

[0001] The present invention relates to an electrolytic liquid generating device. [Background technology]

[0002] Conventionally, an electrolytic liquid generating device has been known that has an electrolytic electrode device composed of an anode, a conductive membrane, and a cathode, and that generates ozone (electrolytic product) using the electrolytic electrode device to obtain ozone water (electrolytic liquid) (see, for example, Patent Document 1).

[0003] The electrolysis electrode device described in Patent Document 1 has a groove formed therein, which is composed of a hole formed in the cathode and a hole formed in the conductive film, and water is introduced into the groove so that the introduced water is electrolyzed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-012695 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional technology, an electrolytic liquid generating apparatus is formed by supporting an electrolytic electrode device on a support structure formed on the piping, which may complicate the assembly process of the electrolytic liquid generating apparatus.

[0006] The present invention is intended to solve the above-mentioned problems in the conventional art, and has an object to provide an electrolytic liquid generating device that can be assembled more easily. [Means for solving the problem]

[0007] In order to achieve the above-mentioned objective, the electrolytic liquid generating device of the present invention has a laminated body in which a conductive film is interposed between adjacent electrodes, and is equipped with an electrolytic unit that electrolytically processes a liquid, and a housing in which the electrolytic unit is disposed.

[0008] The housing has a flow path through which liquid passes, the flow path being in a direction intersecting the stacking direction of the stack.

[0009] The flow path also has an inlet that is connected to an external flow path on the upstream side and through which liquid to be supplied to the electrolysis section flows in, and an outlet that is connected to an external flow path on the downstream side and through which the electrolytic liquid generated in the electrolysis section flows out.

[0010] The electrolysis section has a groove that opens to the flow path and exposes at least a part of the interface between the conductive film and the electrode.

[0011] The housing further includes a case having an opening through which the electrolysis unit can be inserted and in which the electrolysis unit is housed, and a lid that covers the opening of the case.

[0012] The case is provided with a guide portion that extends in the stacking direction of the stack and guides the accommodation of the electrolysis portion. Effect of the Invention

[0013] According to the present invention, it is possible to obtain an electrolytic liquid generating device that can be assembled more easily. [Brief description of the drawings]

[0014] [Figure 1] 1 is a perspective view of an electrolytic water generating device according to an embodiment of the present invention, viewed from above. [Diagram 2] 1 is a perspective view of an electrolytic water generating device according to an embodiment of the present invention, viewed from below. FIG. [Diagram 3] 1 is a plan view showing an electrolytic water generating device according to an embodiment of the present invention. [Figure 4]1 is a side view showing an electrolytic water generating device according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a rear view showing the electrolytic water generating device according to the embodiment of the present invention. [Figure 6] 1 is a front view showing an electrolytic water generating device according to an embodiment of the present invention. [Figure 7] 4 is a cross-sectional view taken along line AA in FIG. [Figure 8] 5 is a cross-sectional view of FIG. 4 taken along line B-B. [Figure 9] 5 is a cross-sectional view taken along CC in FIG. 4. [Figure 10] FIG. 6 is a cross-sectional view taken along the line DD in FIG. 5 . [Figure 11] 6 is a cross-sectional view of FIG. 5 taken along line E-E. [Figure 12] 1 is an exploded perspective view of an electrolytic water generating device according to an embodiment of the present invention, viewed from above. [Figure 13] 1 is an exploded perspective view of an electrolytic water generating device according to an embodiment of the present invention, viewed from below. FIG. [Figure 14] 1 is a perspective view of an electrode case of an electrolytic water generating device according to an embodiment of the present invention, viewed from one side. [Figure 15] 2 is an oblique view of the electrode case of the electrolytic water generating device according to the embodiment of the present invention, viewed from the other side. FIG. [Figure 16] 1 is a perspective view showing an electrolysis unit of an electrolytic water generating device according to an embodiment of the present invention. [Figure 17] 2 is an enlarged perspective view showing a part of an electrolysis unit of an electrolytic water generating device according to an embodiment of the present invention. FIG. [Figure 18] 1 is a perspective view showing a state in which the electrolysis units of an electrolytic water generating device according to an embodiment of the present invention are stacked within an electrode case. [Figure 19] 2 is a perspective view showing a state in which the electrolysis unit of the electrolytic water generation device according to the embodiment of the present invention is accommodated in a second recess of the electrode case. FIG. [Figure 20] 2 is a side cross-sectional view showing a schematic diagram of a groove portion and a flow path of an electrolytic water generating device according to an embodiment of the present invention. FIG. [Figure 21]3 is a perspective view showing a schematic relationship between a groove portion and a protrusion portion of an electrolytic water generating device according to an embodiment of the present invention. FIG. [Figure 22] FIG. 2 is an exploded perspective view showing a first modified example of an electrolytic water generating device according to an embodiment of the present invention. [Diagram 23] FIG. 4 is an exploded perspective view showing a second modified example of an electrolyzed water generating device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] An electrolytic liquid generating device according to an embodiment of the present invention has a laminate stacked so that a conductive film is interposed between adjacent electrodes, and is equipped with an electrolytic unit that electrolytically processes a liquid, and a housing in which the electrolytic unit is disposed.

[0016] The housing has a flow path through which liquid passes, the flow path being in a direction intersecting the stacking direction of the stack.

[0017] The flow path also has an inlet that is connected to an external flow path on the upstream side and through which liquid to be supplied to the electrolysis section flows in, and an outlet that is connected to an external flow path on the downstream side and through which the electrolytic liquid generated in the electrolysis section flows out.

[0018] The electrolysis section has a groove that opens to the flow path and exposes at least a part of the interface between the conductive film and the electrode.

[0019] The housing also includes an electrode case having a recess with an opening through which the electrolysis unit can be inserted, the electrode case containing the electrolysis unit within the recess, and an electrode case lid covering the opening of the electrode case.

[0020] The electrolysis unit is accommodated in the recess with the stacking direction of the stack approximately aligned with the opening direction of the opening.

[0021] In this way, the attachment direction of the electrode case lid to the electrode case can be made to substantially coincide with the stacking direction of the laminate, and the electrolyte liquid generation device can be assembled by moving each component relative to the stacking direction. As a result, the electrolyte liquid generation device can be assembled more easily.

[0022] The flow path is formed between the electrolysis section and the electrode case lid.

[0023] In this way, a flow path can be formed by covering the opening of the electrode case with the electrode case lid while the electrolysis section is housed in the recess, making it easier to assemble an electrolytic liquid generating device having a flow path.

[0024] The electrodes and the conductive film are laminated such that at least the side surfaces extending in the longitudinal direction are substantially flush with each other.

[0025] In this way, the stack can be positioned in the flow path width direction by making the side surfaces of each component extending in the longitudinal direction flush, making it easier to position the stack in the flow path width direction.

[0026] The electrode case is provided with an introduction guide portion that extends in the stacking direction of the laminate and guides the insertion of the electrolysis portion into the recess.

[0027] In this way, when assembling the electrolytic liquid generation device, the positions of the components constituting the stack are prevented from shifting during the assembly process, making it easier to assemble the electrolytic liquid generation device.

[0028] Further, an elastic body is disposed within the housing and is in contact with one side of the stack in the stacking direction in the electrolysis section.

[0029] In this way, by pressing one side of the electrolytic section in the stacking direction with an elastic body, it becomes possible for the elastic body to absorb dimensional variations in the electrolytic section in the stacking direction, making it easier to position the stack in the stacking direction.

[0030] The elastic body is disposed between the electrolysis section and the electrode case.

[0031] This makes it possible to dispose the elastic body inside the electrode case, making it easier to assemble the electrolytic liquid production device.

[0032] A welded portion is formed at the periphery of the opening in the housing, where the electrode case and the electrode case lid are welded to each other.

[0033] This allows the electrode case lid to be attached to the electrode case more easily, making it easier to assemble the electrolyte liquid production device.

[0034] The electrodes include an anode and a cathode, and the electrolysis unit includes an anode-side power feed shaft electrically connected to the anode and applying a voltage to the anode, and a cathode-side power feed shaft electrically connected to the cathode and applying a voltage to the cathode.

[0035] The anode side feed shaft and the cathode side feed shaft extend in the stacking direction.

[0036] In this way, it becomes possible to uniquely determine the size and position of each member constituting the electrolysis unit, and it becomes possible to prevent each member from being misaligned during stacking. As a result, it becomes easier to assemble the electrolysis unit and align each member, and it becomes possible to generate electrolysis products more stably.

[0037] The anode side power feed shaft and the cathode side power feed shaft extend in a direction opposite to the flow path.

[0038] This prevents the anode side power feed shaft and the cathode side power feed shaft from being disposed within the flow path, thereby making it possible to prevent the liquid flowing through the flow path from stagnating.

[0039] Further, one of the anode side power feed shaft and the cathode side power feed shaft is provided on the inlet side of the electrolysis unit, and the other is provided on the outlet side of the electrolysis unit.

[0040] In this way, the distance between the anode side power feed shaft and the cathode side power feed shaft can be maximized while preventing the electrolyte generation device from becoming too large, which in turn prevents the electrolyte generation device from becoming too large while preventing the anode and cathode from shorting out.

[0041] In addition, when viewed from the stacking direction, the electrolysis unit has a substantially rectangular shape with the liquid flow direction as the longitudinal direction, and the anode side power feed shaft and the cathode side power feed shaft are provided at diagonal corners of the electrolysis unit.

[0042] This makes it possible to eliminate any directional differences between the inlet and outlet sides of the electrode case, enabling the electrolyte generating device to be assembled more efficiently.

[0043] At least one of the anode side power feed shaft and the cathode side power feed shaft is provided separately from the electrodes.

[0044] This eliminates the need to weld the anode side power feed shaft and the cathode side power feed shaft, which makes it possible to more easily process the members constituting the electrolysis unit and reduce costs.

[0045] At least one of the members constituting the electrolysis unit has a curved shape in the lamination direction.

[0046] In this way, when the electrolytic liquid generating device is assembled, a stable pressing pressure can be generated against the electrodes. As a result, the current-carrying area can be secured more stably, and the generation capacity of the electrolytic product can be more stable. In addition, since it is no longer necessary to fasten the electrolytic unit arranged in the electrode case with a screw or the like, the occurrence of assembly variations can be suppressed, and the generation capacity of the electrolytic product can be more stable. Furthermore, since the number of parts can be reduced, it is possible to reduce costs.

[0047] The groove is formed to have a depth smaller than at least one of an opening width of the groove in the liquid passing direction and a height of the flow path in the stacking direction.

[0048] This makes it possible to prevent the liquid flowing through the flow path from stagnating in the groove, thereby making it possible to further improve the dissolved concentration of the electrolysis product in the liquid.

[0049] Moreover, the flow path is formed so that the height in the stacking direction is smaller than the width of the flow path.

[0050] In this way, the surface flow rate at the interface can be increased, so that the generated electrolysis products can be dissolved more quickly, and the dissolved concentration of the electrolysis products in the liquid can be further increased.

[0051] In addition, a protrusion is in contact with the surface of the electrolysis unit on the side of the flow path.

[0052] In this way, the protrusions can press the electrolysis unit, so that the contact between the conductive film and the electrodes can be more reliably maintained, and as a result, the current density of the current flowing through the electrolysis unit can be made more uniform, thereby improving the efficiency of generating electrolysis products.

[0053] The protrusion is formed at the center of the flow channel in the width direction of the flow channel.

[0054] In this way, by pressing the center of the electrolysis unit with the protrusion, the conductive film and the electrode can be brought into more uniform contact with each other, which results in a more uniform current density of the current flowing through the electrolysis unit, thereby improving the efficiency of generating electrolysis products.

[0055] The protrusions are formed in a plurality of rows in the liquid passage direction.

[0056] In this way, the protrusions press the electrolysis unit along the liquid flow direction, so that the conductive film and the electrodes can be brought into more uniform contact with each other, which results in a more uniform current density of the current flowing through the electrolysis unit, thereby improving the efficiency of generating electrolysis products.

[0057] Further, the protrusion is formed so that at least the portion in contact with the electrolysis portion does not overlap with the groove portion when viewed from the stacking direction.

[0058] In this way, since the protrusions are not disposed on the grooves, it is possible to prevent the flow of the liquid in the grooves from being hindered by the protrusions. As a result, the retention of bubbles near the interface of the grooves is prevented, and the dissolution concentration of the electrolysis product in the liquid can be further improved.

[0059] In addition, the groove portions are formed in multiple rows in the liquid passage direction, and the liquid passage direction width of the protrusion portion at least at the contact portion with the electrolysis portion is smaller than the liquid passage direction width between adjacent groove portions in the electrolysis portion.

[0060] In this way, even if the position of the protrusion is slightly misaligned during assembly of the electrolyte solution generating device, the protrusion can be prevented from being positioned above the groove.

[0061] Moreover, the protrusion is formed so that its contour shape, when viewed from the stacking direction, is a polygon having rounded vertices.

[0062] In this way, by forming an R portion at the apex of the contour shape of the protrusion, the flow of liquid near the protrusion can be made smoother, thereby preventing the accumulation of air bubbles and further improving the dissolved concentration of the electrolysis product in the liquid.

[0063] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiment.

[0064] In the following, an ozone water generator that generates ozone (electrolysis product) and dissolves the ozone in water (liquid) to generate ozone water (electrolysis liquid) is exemplified as the electrolytic liquid generator. Ozone water is effective for sterilization and decomposition of organic matter, and is therefore widely used in the fields of water treatment, food, and medicine, and has the advantages of being non-residual and not generating by-products.

[0065] In the following description, the extension direction of the flow path is referred to as the liquid flow direction (front-rear direction) X, the width direction of the flow path is referred to as the width direction (flow path width direction) Y, and the direction in which the electrodes and conductive films are stacked is referred to as the stacking direction (up-down direction) Z. The up-down direction in a state in which the electrolytic liquid production device is placed so that the electrode case lid is on the upper side is referred to as the up-down direction Z.

[0066] (Embodiment) The ozone water generating apparatus (electrolytic liquid generating apparatus) 1 of this embodiment has a housing 10 with a flow path 11 formed therein, and is configured so as to be connectable midway (between upstream piping 71 and downstream piping 72) of a piping 70 that supplies liquid to an electrical device, a liquid reforming apparatus, etc. (see Figure 7).

[0067] Then, by connecting an ozone water generating device (electrolytic liquid generating device) 1 to the middle of the piping 70 and connecting the flow path 11 to an external flow path (the water passage 71a of the upstream piping 71 and the water passage 72a of the downstream piping 72), the ozone water (electrolytic water: electrolytic liquid) generated in the ozone water generating device (electrolytic liquid generating device) 1 can be supplied to electrical equipment, liquid modifying devices, etc.

[0068] The ozone water generator (electrolytic liquid generator) 1 does not need to be connected midway through the piping 70, and for example, the downstream side of the ozone water generator (electrolytic liquid generator) 1 can be directly connected to an electric device, a liquid reformer, etc. In this case, a flow path formed inside the electric device, the liquid reformer, etc. becomes the downstream external flow path.

[0069] Inside the housing 10 in which the flow path 11 is formed, an electrolysis unit 80 is arranged facing the flow path 11, and the water (liquid) flowing within the flow path 11 is electrolyzed by the electrolysis unit 80.

[0070] In this embodiment, the electrolysis unit 80 is disposed in the housing 10 so that an upper surface (a surface on one side in the stacking direction Z) 80a faces the flow path 11 (see FIG. 20).

[0071] As shown in Figures 12 and 13, this electrolysis section 80 has a laminate 81 that is laminated so that a conductive film 86 is interposed between an anode (electrode) 84 and a cathode (electrode) 85 (between adjacent electrodes).

[0072] On the other hand, the flow path 11 is formed in the housing 10 such that the liquid passing direction X intersects with the stacking direction Z of the stack 81 .

[0073] This flow path 11 has an inlet 11a connected to a water passage (upstream external flow path) 71a of the upstream piping 71 through which liquid to be supplied to the electrolysis section 80 flows in, and an outlet 11b connected to a water passage (downstream external flow path) 72a of the downstream piping 72 through which ozone water (electrolytic liquid) generated in the electrolysis section 80 flows out.

[0074] Furthermore, the laminate 81 has a groove 82 formed therein, which opens to the flow channel 11 and exposes at least a part of interfaces 87, 88 between the conductive film 86 and the electrodes (anode 84 and cathode 85) (see FIG. 20).

[0075] In this embodiment, by forming such grooves in the laminate 81, water (liquid) supplied into the flow channel 11 from the inlet 11a can be introduced into the grooves .

[0076] Then, the power supplied from the power supply unit 100 is used to perform an electrolytic process that causes an electrochemical reaction mainly in the water (liquid) introduced into the groove portion 82, thereby generating ozone water (electrolyzed water: electrolytic liquid) in which ozone (electrolysis product) is dissolved.

[0077] In this manner, the ozone water generating apparatus (electrolytic liquid generating apparatus) 1 of this embodiment generates ozone water (electrolytic water: electrolytic liquid) in which ozone (electrolysis product) is dissolved by performing an electrolytic process on water (liquid) that causes an electrochemical reaction.

[0078] In addition, the ozone water (electrolyzed water: electrolytic liquid) generated in the ozone water generation apparatus (electrolytic liquid generation apparatus) 1 flows out from the outlet 11b via the flow path 11 to the outside of the ozone water generation apparatus (electrolytic liquid generation apparatus) 1 (into the water passage 72a of the downstream piping 72).

[0079] The housing 10 can be formed, for example, using a non-conductive resin such as acrylic, and is provided with a recess 34 having an opening 332a through which the electrolysis unit 80 can be inserted, an electrode case 20 in which the electrolysis unit 80 is accommodated within the recess 34, and an electrode case lid 60 that covers the opening 332a of the electrode case 20 (see Figures 12 and 13).

[0080] 14 and 15, the electrode case 20 includes a substantially hollow box-shaped main body 30 in which an electrolysis unit 80 is disposed. A substantially cylindrical first connection part (upstream connection part) 40 connected to an upstream piping 71 is formed on one side (upstream side) in the longitudinal direction (fluid passage direction: front-rear direction X) of the main body 30. A substantially cylindrical second connection part (downstream connection part) 50 connected to a downstream piping 72 is formed on the other side (downstream side) in the longitudinal direction (fluid passage direction: front-rear direction X) of the main body 30.

[0081] Furthermore, in the first connection part (upstream connection part) 40, a first connection flow path (upstream flow path) 12 is formed which is communicated with the water passage 71a of the upstream pipe 71 when the first connection part (upstream connection part) 40 is connected to the upstream pipe 71 (see FIG. 7). In this embodiment, this first connection flow path (upstream flow path) 12 constitutes a part of the flow path 11, and the upstream end of the first connection flow path (upstream flow path) 12 is an inlet 11a. In addition, a tapered part 40a which becomes wider toward the upstream side is formed at the upstream end of the first connection part (upstream connection part) 40. Thus, in this embodiment, the inlet 11a is formed to be wider than the downstream flow path of the first connection flow path (upstream flow path) 12.

[0082] On the other hand, the second connection part (downstream connection part) 50 has a second connection flow path (downstream flow path) 16 that is connected to the water passage 72a of the downstream pipe 72 in a state where the second connection part (downstream connection part) 50 is connected to the downstream pipe 72 (see FIG. 7). In this embodiment, the second connection flow path (downstream flow path) 16 also constitutes a part of the flow path 11, and the downstream end of the second connection flow path (downstream flow path) 16 is the outlet 11b. In addition, a tapered part 50a that becomes wider toward the downstream side is also formed at the downstream end of the second connection part (downstream connection part) 50. Thus, in this embodiment, the outlet 11b is also formed to be wider than the flow path upstream of the second connection flow path (downstream flow path) 16.

[0083] Furthermore, in this embodiment, the first connection portion (upstream connection portion) 40 and the second connection portion (downstream connection portion) 50 are formed such that their upper end portions (end portions on the electrode case lid 60 side) 41, 51 protrude upward beyond the main body portion 30. By thus causing the upper end portions 41, 51 to protrude upward beyond the main body portion 30, the electrode case lid 60 is sandwiched between the upper end portions 41 and 51 when the electrode case lid 60 is attached to the electrode case 20.

[0084] As shown in Figures 14 and 15, the main body 30 comprises a bottom wall portion 31, a peripheral wall portion 32 connected to the peripheral edge of the bottom wall portion 31, and a top wall portion 33 connected to the upper end of the peripheral wall portion 32, and a through hole 332 is formed in the top wall portion 33 that penetrates in the vertical direction Z.

[0085] Inside the main body 30, a recess 34 is formed, which is defined by the inner surface 311 of the bottom wall 31, the inner surfaces 321a and 321b of the peripheral wall 32, which are the width direction side inner surface 321a and the length direction side inner surface 321b, and the inner surface 331 of the top wall 33. In this manner, in the present embodiment, the recess 34 is formed so as to open upward. Therefore, the opening 332a formed in the top wall 33 serves as the opening of the recess 34.

[0086] The electrolysis unit 80 is inserted into the recess 34 from the opening 332a side, so that the electrolysis unit 80 is accommodated in the recess 34. The opening 332a is formed to be larger than the contour shape of the electrolysis unit 80 as viewed from the stacking direction Z, so that the electrolysis unit 80 with its stacking direction aligned with the up-down direction Z can be inserted into the recess 34 in that position.

[0087] Furthermore, in this embodiment, step portions 35 are formed on both ends in the longitudinal direction (liquid passage direction: front-rear direction X) inside the main body portion 30.

[0088] This step portion 35 is formed integrally with the bottom wall portion 31 and the peripheral wall portion 32, and is located between the inner surface 311 of the bottom wall portion 31 and the opening 332a in the vertical direction Z, and has an intermediate surface 351 extending horizontally, and a step surface 352 extending vertically to connect the intermediate surface 351 and the inner surface 311 of the bottom wall portion 31.

[0089] By forming such a step portion 35, the recess 34 has a two-step recess structure.

[0090] Specifically, the recess 34 has a first recess (space where a flow path is to be formed) 341 formed on the opening side in which a part of the flow path 11 is formed, and a second recess (space where an electrolysis unit is to be accommodated) 342 formed further back (lower) than the first recess (space where a flow path is to be formed) 341 in which the electrolysis unit 80 is accommodated.

[0091] Furthermore, the second recess (electrolysis unit accommodating space) 342 has a main body unit accommodating recess 342a in which the main body unit 80b of the electrolysis unit 80 is accommodated, and a power supply unit accommodating space 342b connected to one side in the width direction Y at both ends of the longitudinal direction (liquid flow direction: front-to-rear direction X) of the main body unit accommodating recess 342a, and in which the power supply unit 80c of the electrolysis unit 80, which will be described later, is accommodated.

[0092] That is, the step surface 352 of the step portion 35 has an inner step surface 352a located on the inside in the longitudinal direction (liquid passage direction: front-rear direction X), an outer step surface 252b located on the outside in the longitudinal direction (liquid passage direction: front-rear direction X), and a connecting step surface 352c connecting the inner step surface 352a and the outer step surface 252b. The intermediate surface 351 is formed such that the inner boundary line in the longitudinal direction (liquid passage direction: front-rear direction X) has a crank-shaped bent shape when viewed from the up-down direction Z.

[0093] As described above, in this embodiment, the first recess (space for forming a flow path) 341 is defined by the inner surface 331 of the ceiling wall portion 33, the upper portion of the width direction side inner surface 321a and the longitudinal direction side inner surface 321b of the peripheral wall portion 32, and the intermediate surface 351 of the step portion 35.

[0094] Further, the second recess (electrolysis unit accommodating space) 342 is defined by the inner surface 311 of the bottom wall portion 31, the step surface 352 of the step portion 35, and the lower portion of the width direction inner surface 321a.

[0095] As described above, the electrolysis unit 80 is accommodated in the second recess (electrolysis unit accommodating space) 342. At this time, the electrolysis unit 80 is accommodated with the stacking direction aligned with the up-down direction Z.

[0096] Furthermore, in this embodiment, the electrolysis unit 80 is accommodated in the second recess (electrolysis unit accommodating space) 342 via the elastic body 90. That is, the electrolysis unit 80 is accommodated in the second recess (electrolysis unit accommodating space) 342 with the elastic body 90 interposed between the electrolysis unit 80 and the electrode case 20 and in a state in which the elastic body 90 is in contact with the lower surface 80d of the electrolysis unit 80. This elastic body 90 can be formed using an elastic material such as rubber, plastic, or a metal spring.

[0097] In this embodiment, when the electrode case lid 60 is attached to the electrode case 20, an electrolysis unit-side flow path 14 is formed on the upper surface (one surface in the stacking direction Z) 80a of the electrolysis unit 80 and on the intermediate surface 351. In this manner, in this embodiment, a flow path 11 is formed between the electrolysis unit 80 and the electrode case lid 60.

[0098] Furthermore, in this embodiment, guide protrusions (introduction guide portions) 353 protruding upward are formed on both sides in the width direction Y at the inner boundary portion in the longitudinal direction (fluid passage direction: front-rear direction X) of the intermediate surface 351 of the step portion 35. That is, guide protrusions (introduction guide portions) 353 that guide the insertion of the electrolysis portion 80 into the second recess (electrolysis portion accommodating space) 342 are provided at the four corners of the second recess (electrolysis portion accommodating space) 342.

[0099] A first main body side flow path 13 communicating with a first connecting flow path (upstream side flow path) 12 is formed in the peripheral wall 32 on one side (upstream side) in the longitudinal direction (fluid passage direction: front-rear direction X). A second main body side flow path 15 communicating with a second connecting flow path (downstream side flow path) 16 is formed in the peripheral wall 32 on the other side (downstream side) in the longitudinal direction (fluid passage direction: front-rear direction X).

[0100] In this manner, in this embodiment, the flow path 11 is formed by the first connecting flow path (upstream flow path) 12, the first main body side flow path 13, the electrolysis section side flow path 14, the second main body side flow path 15, and the second connecting flow path (downstream flow path) 16 (see FIG. 7). At this time, the flow path 11 is formed so that the cross-sectional area is almost the same except for the portion where the inlet 11a is formed and the portion where the outlet 11b is formed.

[0101] 6 and 8, the flow path 11 is formed in a rectangular shape that is wider in the width direction Y. That is, the flow path 11 is formed so that the height in the stacking direction Z is a height H1 that is smaller than the flow path width W1. In this embodiment, the flow path 11 is formed so that the flow path width W1 is about 10 mm and the height H1 in the stacking direction Z is about 2 mm. In this way, for example, when water (liquid) is supplied into the flow path 11 at a flow rate of 2 L / min, the flow velocity of the water (liquid) flowing through the flow path is about 1.67 m / s.

[0102] Furthermore, in this embodiment, power supply unit accommodating space 342b located on one side (upstream side) in the longitudinal direction (fluid flow direction: front-rear direction X) is formed on one side in the width direction Y, and power supply unit accommodating space 342b located on the other side (downstream side) in the longitudinal direction (fluid flow direction: front-rear direction X) is formed on the other side in the width direction Y. That is, a pair of power supply unit accommodating spaces 342b are formed at diagonal portions of main body accommodating recess 342a.

[0103] Therefore, in this embodiment, the recess 34 is formed so as to be point-symmetric with respect to the center of the main body 30 when viewed from the up-down direction Z.

[0104] In this embodiment, the housing 10 itself (the electrode case 20 and the electrode case lid 60) is also formed to be point-symmetrical with respect to the center of the housing 10 when viewed from the up-down direction Z.

[0105] The electrode case lid 60 comprises a substantially rectangular plate-like lid body 61 and a fitting protrusion 62 that protrudes downward from the center of the lower part of the lid body 61 and fits into the opening 332 a of the electrode case 20 .

[0106] A fusion projection 63 protruding downward is formed around the entire periphery of the fitting protrusion 62 in the lid main body 61. This fusion projection 62 is inserted into a groove 333a formed around the entire periphery of the periphery 333 of the opening 332a in the top wall 33 of the electrode case 20 when the electrode case lid 60 is attached to the electrode case 20.

[0107] Then, with the fitting protrusion 62 fitted into the opening 332a and the fusion welding projection 62 inserted into the groove 333a, the electrode case lid 60 and the electrode case 20 are fused together by vibration welding, heat welding, or the like, so that the recess 34 of the electrode case 20 is sealed by the electrode case lid 60. At this time, a fusion welding portion 17 is formed in the area of ​​the fusion welding projection 62 and the groove 333a.

[0108] In addition, it is also possible to screw the electrode case lid 60 to the electrode case 20 with a sealing material interposed between the electrode case lid 60 and the electrode case 20, so that the recess 34 of the electrode case 20 is sealed by the electrode case lid 60.

[0109] In addition, an extension wall 62b extending in the longitudinal direction (fluid flow direction: front-to-rear direction X) is formed on both ends of the underside 62a of the fitting protrusion 62 in the width direction Y, and when the electrode case lid 60 is attached to the electrode case 20, this extension wall 62b defines both ends of the electrolysis section side flow path 14 in the width direction Y.

[0110] Furthermore, in this embodiment, the extension wall 62b is formed so as to be disposed inside in the longitudinal direction (liquid passage direction: front-rear direction X) of the guide protrusions (introduction guide portions) 353 provided at the four corners of the second recess (electrolysis portion accommodating space) 342. The extension wall 62b is formed so as to overlap with the guide protrusions (introduction guide portions) 353 when viewed from the longitudinal direction (liquid passage direction: front-rear direction X).

[0111] In this embodiment, by providing such an extension wall 62b, the generation of turbulence in the vicinity of the guide protrusion (introduction guide portion) 353 can be suppressed.

[0112] Furthermore, a plurality of protrusions 64 are formed at the center in the width direction Y on the lower surface 62a of the fitting protrusion 62 and aligned along the longitudinal direction (fluid passage direction: front-rear direction X).

[0113] The electrolysis unit 80 is accommodated in the second recess (electrolysis unit accommodating space) 342 via the elastic body 90, and when the electrode case lid 60 is attached to the electrode case 20, the electrolysis unit 80 is pressed downward by the protrusion 64 provided on the electrode case lid 60.

[0114] In this manner, in the present embodiment, by pressing the electrolysis section 80 downward, a constant pressure is applied to the entire electrolysis section 80 by the elastic body 90, thereby further enhancing the adhesion between the components that make up the electrolysis section 80.

[0115] Furthermore, when the electrode case lid 60 is attached to the electrode case 20, the upper surface (surface on one side in the stacking direction Z) 80a of the electrolysis section 80 is made to be approximately flush with the intermediate surface 351. This prevents a step from being formed in the flow path 11. Furthermore, the cross-sectional area of ​​the flow path (electrolysis section side flow path 14) formed in the upper part of the electrolysis section 80 is made to be approximately the same as the cross-sectional area of ​​the other flow paths.

[0116] In this way, by making the cross-sectional area of ​​the flow path 11 almost the same, it is possible to suppress turbulence in the flow of water (liquid) flowing through the flow path 11. As a result, it is possible to suppress the generation of stagnation parts in the flow path 11, and to suppress the generated ozone (electrolysis product) from growing into bubbles, and it is possible to further improve the concentration of ozone (electrolysis product) in the ozone water (electrolysis liquid) flowing out from the outlet 11b.

[0117] Next, a specific configuration of the electrolysis unit 80 will be described.

[0118] As shown in Figs. 16 and 17, the electrolysis unit 80 has a substantially rectangular shape with the liquid passage direction X as the longitudinal direction when viewed from the stacking direction Z. The electrolysis unit 80 includes a laminate 81 configured by stacking an anode 84, a conductive film 86, and a cathode 85 in this order. As described above, in this embodiment, the laminate 81 is stacked such that the conductive film 86 is interposed between the electrodes (anode 84 and cathode 85) adjacent to each other. In this embodiment, a power feeder 83 made of, for example, titanium is stacked below the anode 84, and electricity is supplied to the anode 84 via the power feeder 83.

[0119] Furthermore, in this embodiment, a groove 82 having an opening 82a opening into the flow path 11 is formed in the laminate 81, and this groove 82 is configured so that at least a part of an interface 88 between the conductive film 86 and the cathode 85 can come into contact with water (liquid). Also, at least a part of an interface 87 between the conductive film 86 and the anode 84 can come into contact with water (liquid).

[0120] Specifically, a cathode side hole 85c is formed in the cathode 85, and a conductive membrane side hole 86c is formed in the conductive membrane 86. When the cathode 85 and the conductive membrane 86 are laminated, the cathode side hole 85c and the conductive membrane side hole 86c are arranged to communicate with each other.

[0121] Therefore, an inner side surface 86d of the conductive film 86 and an inner side surface 85d of the cathode 85 become side surfaces 82c of the groove portion 82, and an upper surface (front surface) 84a of the anode 84 becomes a bottom surface 82b of the groove portion 82 (see FIG. 20). By forming such a groove portion 82, at least a part of an interface (interface between the conductive film and the electrode) 88 between the conductive film 86 and the cathode 85 is exposed to the groove portion 82, and water can freely come into contact with the interface 87 exposed to the groove portion 82. In addition, at least a part of an interface (interface between the conductive film and the electrode) 87 between the conductive film 86 and the anode 84 is also exposed to the groove portion 82, and water can freely come into contact with the interface 87 exposed to the groove portion 82.

[0122] In the present embodiment, groove portion 82 is formed so as to have a shape in which both ends of the groove portion extending in width direction Y, which is elongated in width direction Y, are bent toward the upstream side. That is, cathode side hole 85c which is formed in cathode 84 and penetrates in stacking direction Z is formed so as to have a V-shape with the bent point portion disposed on the downstream side.

[0123] The conductive film side hole 86c that is formed in the conductive film 86 and penetrates in the stacking direction Z is also formed so as to have a V-shape with its bend point located on the downstream side, and the cathode side hole 85c and the conductive film side hole 86c are connected to each other, thereby forming a V-shaped groove portion 82.

[0124] The shape of the groove 82 is not limited to the V-shape described above, and may be various other shapes. For example, the groove 82 may be a rectangular shape that is elongated in the width direction Y.

[0125] Furthermore, in this embodiment, a plurality of grooves 82 are formed so as to be aligned along the longitudinal direction X, but it is sufficient that at least one groove 82 is formed.

[0126] In this embodiment, interface 88 between conductive film 86 and cathode 85 refers to the boundary line between the side surface of cathode 85 and the side surface of conductive film 86. Interface 87 between conductive film 86 and anode 84 refers to the intersection line between the surface of anode 84 and the side surface of conductive film 86.

[0127] In addition, the conductive film 86 and the cathode 85 may be the same size or different sizes, but at least their holes (cathode side holes 85c and conductive film side holes 86c) must communicate with each other, and a sufficient electrical contact area must be ensured. Therefore, taking these into consideration, it is preferable that the conductive film 86 and the cathode 85 have approximately the same projected dimensions (approximately the same size when viewed from the stacking direction Z).

[0128] Furthermore, the anode 84 may be the same size as the conductive film 86 and the cathode 85, or may be different in size, but is preferably large enough to be visible from all of the grooves 82 when viewed from the stacking direction Z.

[0129] In this embodiment, the anode 84, the cathode 85 and the conductive film 86 are made to have approximately the same projected dimensions.

[0130] By doing so, when the laminate 81 is formed, the side surfaces of the anode 84, the cathode 85 and the conductive film 86 are made to be substantially flush with each other.

[0131] That is, when the laminate 81 is formed, at least the side surfaces 84b, 85b, and 86b of the anode 84, the cathode 85, and the conductive film 86 extending in the longitudinal direction are arranged to be substantially flush with each other.

[0132] In this embodiment, the power supply body 83 and the elastic body 90 are also designed to have approximately the same projected dimensions as the anode 84, the cathode 85 and the conductive film 86.

[0133] The electrolysis section 80 receives ions from the conductive film 86 and a current from the power supply section 100 , and performs an electrolysis process to electrochemically generate ozone at the interface 87 between the anode 84 and the conductive film 86 .

[0134] The electrochemical reaction is as follows:

[0135] Anode side: 3H2O → O3 + 6H + +6e- 2H2O→O2+4H + +4e- Cathode side: 2H + +2e-→H2 The power feeder 83 can be made of, for example, titanium, and is configured to contact the anode 84 on the side opposite to the conductive film 86. A shaft attachment piece 83a is formed at one end of the power feeder 83, and an anode side power feed shaft 83b is attached to the shaft attachment piece 83a by welding or the like. In this manner, the anode side power feed section 80c is formed by attaching the anode side power feed shaft 83b to the shaft attachment piece 83a.

[0136] The power feeder 83 is electrically connected to the power supply unit 100 via a conductive wire 102a on the anode 102 side that is connected to the anode side power feed shaft 83b.

[0137] In this embodiment, the anode side power supply shaft 83b is attached to the shaft attachment piece 83a so as to extend in the stacking direction Z. The power supply body 83 is inserted into the second recess (electrolysis unit accommodating space) 342 with the anode side power supply shaft 83b extending toward the opposite side (lower side) from the flow path 11. At this time, a pair of power supply unit insertion holes 313a through which the shaft of the power supply unit 80c is inserted are formed in the bottom wall portion 31 of the electrode case 20 so as to communicate with each power supply unit accommodating space 342b, and the anode side power supply shaft 83b is inserted into one of the power supply unit insertion holes 313a. The conductive wire 102a is connected to a portion of the anode side power supply shaft 83b exposed to the outside of the electrode case 20.

[0138] The anode 84 can be formed, for example, by forming a conductive diamond film on a conductive substrate made of silicon with a width of about 10 mm and a length of about 50 mm. This conductive diamond film has boron-doped conductivity. The conductive diamond film is formed on the conductive substrate with a thickness of about 3 μm by the plasma CVD method.

[0139] In this embodiment, the anode 84 and the cathode 85 are in a plate shape, but the anode 84 and the cathode 85 may be in a film, mesh, or line shape.

[0140] The conductive film 86 is disposed on the anode 84 on which the conductive diamond film is formed. The conductive film 86 is a proton conductive ion exchange film, and has a thickness of about 100 to 200 μm. As shown in FIG. 12 and FIG. 13, the conductive film 86 has a plurality of conductive film side holes 86c formed therein, penetrating in the thickness direction (Z direction).

[0141] In this embodiment, each conductive film side hole 86c is provided to have the same shape. Moreover, the conductive film side holes 86c are provided to be aligned in a row along the longitudinal direction X. The shape and arrangement of the conductive film side holes 86c may be different.

[0142] The cathode 85 is disposed on the conductive film 86. The cathode 86 is, for example, made of a stainless steel electrode plate having a thickness of about 0.5 mm. As shown in Figs. 12 and 13, the cathode 85 has a plurality of cathode side holes 85c formed therein, penetrating in the thickness direction.

[0143] The cathode side holes 85c have the same or similar opening shape as the conductive membrane side holes 86c. Moreover, the cathode side holes 85c are arranged in a row at the same pitch and in the same direction as the arrangement of the conductive membrane side holes 86c.

[0144] Further, a shaft attachment piece 85e is formed at one end of the cathode 85, and a cathode side power supply shaft 85f is attached to this shaft attachment piece 85e by welding, etc. In this manner, by attaching the cathode side power supply shaft 85f to the shaft attachment piece 85e, the cathode side power supply part 80c is formed.

[0145] The cathode 85 is electrically connected to the power supply unit 100 via a cathode 101-side conductor 101a connected to the cathode-side power supply shaft 85f.

[0146] In this embodiment, the cathode side power supply shaft 85f is also attached to the shaft attachment piece 85e so as to extend in the stacking direction Z. The cathode 85 is inserted into the second recess (electrolysis unit accommodating space) 342 with the cathode side power supply shaft 85f extending toward the opposite side (downward) from the flow path 11. At this time, the cathode side power supply shaft 85f is inserted into the other power supply unit insertion hole 313a, and the conducting wire 101a is connected to the portion of the cathode side power supply shaft 85f exposed to the outside of the electrode case 20.

[0147] In this embodiment, as described above, a pair of power supply unit accommodating spaces 342b are formed at diagonal corners of main body unit accommodating recess 342a.

[0148] Therefore, the anode side power feed shaft 83b and the cathode side power feed shaft 85f are provided at the diagonal portion 80e of the electrolysis section 80 in this embodiment.

[0149] Furthermore, in this embodiment, the anode side power feed shaft 83b, which is either the anode side power feed shaft 83b or the cathode side power feed shaft 85f, is provided on the inlet 11a side of the electrolysis unit 80. The other, the cathode side power feed shaft 85f, is provided on the outlet 11b side of the electrolysis unit 80.

[0150] The electrolysis section 80 is disposed in the recess 34 with the direction in which the multiple grooves 82 are arranged substantially in line with the front-rear direction X.

[0151] The power supply unit 100 generates a potential difference between the anode 84 and the cathode 85 via the conductive film 86. The anode 84 is electrically connected to the anode 102 side of the power supply unit 100 via a conductor 102a, and the cathode 85 is electrically connected to the cathode 101 side of the power supply unit 100 via a conductor 101a (see FIG. 4). The power supply unit 100 can be electrically connected to a control unit (not shown) via wiring (not shown). By connecting to the control unit, it becomes possible to switch the power supply unit 100 on and off and change its output.

[0152] In this embodiment, the groove portion 82 is formed to have a depth D1 that is smaller than at least one of the opening width L1 of the groove portion 82 in the liquid passage direction X and the height H1 of the flow path 11 in the stacking direction Z (see Figures 8 and 20).

[0153] That is, the grooves 82 are formed so that the height H1 of the flow channel 11 in the stacking direction Z>the depth D1 of the grooves 82, or the opening width L1 of the grooves 82 in the liquid passing direction X>the depth D1 of the grooves 82.

[0154] In this embodiment, the height H1 of the flow channel 11 in the stacking direction Z is set to about 2 mm as described above.

[0155] Further, the depth D1 of the groove 82 is the sum of the thickness of the conductive film 86 and the thickness of the cathode 85, and is therefore about 0.6 mm to about 0.7 mm in this embodiment.

[0156] The opening width L1 of the groove 82 in the liquid passing direction X is about 1.5 mm.

[0157] Thus, in this embodiment, the groove portion 82 is formed so that the height H1 of the flow path 11 in the stacking direction Z is greater than the depth D1 of the groove portion 82, and the opening width L1 of the groove portion 82 in the liquid flow direction X is greater than the depth D1 of the groove portion 82.

[0158] Furthermore, in this embodiment, the protrusion 64 is in contact only with the upper surface (one surface in the stacking direction Z) 80a of the electrolysis unit 80. That is, when viewed from the stacking direction Z, at least the contact portion 64a of the protrusion 64 that is in contact with the electrolysis unit 80 does not overlap the groove portion 82.

[0159] Specifically, as shown in Figure 21, the liquid passage direction width L2 at least at the contact portion 64a of the protrusion portion 64 with the electrolysis section 80 is made smaller than the liquid passage direction width L3 between adjacent groove portions 82 in the electrolysis section 80, and the protrusion portion 64 is made to contact only the upper surface (one side surface in the stacking direction Z) 80a of the electrolysis section 80.

[0160] In this embodiment, the width L2 in the liquid passing direction at the contact portion 64a of the protrusion 64 with the electrolysis unit 80 is about 1.5 mm.

[0161] The width L3 in the liquid passage direction between adjacent grooves 82 in the electrolysis section 80 is about 2.0 mm.

[0162] In this embodiment, the protrusion 64 is formed so that the liquid passage direction width at all parts from the tip (lower end) to the base portion (upper end) of the protrusion 64 is smaller than the liquid passage direction width L3 between the groove portions 82.

[0163] Furthermore, in this embodiment, the upper surface (one surface in the stacking direction Z) 80a of the electrolysis unit 80 is present so as to surround the entire periphery of the contact portion 64a of the protrusion 64 with the electrolysis unit 80. This makes it possible for the entire surface of the contact portion 64a of the protrusion 64 with the electrolysis unit 80 to be in contact with the upper surface (one surface in the stacking direction Z) 80a of the electrolysis unit 80 even if the protrusion 64 is misaligned in any direction on the XY plane.

[0164] In this embodiment, the protrusion 64 is formed such that, when viewed from the stacking direction Z, the contour shape 64b is a quadrangle (polygon) with rounded portions 64d formed at vertices 64c.

[0165] The ozone water generator (electrolytic liquid generator) 1 having such a configuration can be assembled, for example, by the method described below.

[0166] First, the elastic body 90 is inserted into the recess 34 from the opening 332a side of the electrode case 20, so that the elastic body 90 is disposed in the second recess 342 (electrolysis unit accommodating space).

[0167] Next, with the tip of the anode side power supply shaft 83b facing downward, the power supply body 83 is inserted into the recess 34 from the opening 332a side of the electrode case 20, while the anode side power supply shaft 83b is inserted into one of the power supply part insertion holes 313a, so that the main body part of the power supply body 83 is stacked on the elastic body 90.

[0168] Next, the anode 84 is inserted into the recess 34 from the opening 332 a side of the electrode case 20 , and the anode 84 is layered on the power feeder 83 .

[0169] Next, the conductive film 86 is inserted into the recess 34 from the opening 332 a side of the electrode case 20 , and the conductive film 86 is laminated on the anode 84 .

[0170] Next, with the tip of the cathode side power supply shaft 85f facing downward, the cathode 85 is inserted into the recess 34 from the opening 332a side of the electrode case 20, while the cathode side power supply shaft 85f is inserted into the other power supply part insertion hole 313a, thereby stacking the main body of the cathode 85 on the conductive film 86.

[0171] At this time, the elastic body 90 and the members constituting the electrolysis unit 80 are inserted into the second recess (electrolysis unit accommodating space) 342 while being guided by the guide protrusion (introduction guide portion) 353.

[0172] However, simply stacking the elastic body 90 and the members constituting the electrolysis section 80 within the recess 34 leaves the elastic body 90 in a substantially free state (a state in which it is hardly elastically deformed).

[0173] Therefore, at least the cathode 85 of the electrolysis unit 80 is in a state of floating above the intermediate surface 351 (see FIG. 18). However, relative movement in the longitudinal direction X of the cathode 85 floating above the intermediate surface 351 is suppressed by the guide protrusion (introduction guide portion) 353. In this embodiment, the elastic body 90 and each member constituting the electrolysis unit 80 are positioned in the width direction Y by the width direction side inner surface 321a.

[0174] Thereafter, the electrode case lid 60 is moved relative to the electrode case 20 in the stacking direction Z, so that the fitting protrusions 62 are fitted into the openings 332a and the fusion bonding projections 62 are inserted into the grooves 333a.

[0175] Then, with the fitting protrusion 62 fitted into the opening 332a and the welding protrusion 62 inserted into the groove 333a, the electrode case lid 60 and the electrode case 20 are welded together by vibration welding, heat welding or the like.

[0176] In this manner, the recess 34 of the electrode case 20 is sealed by the electrode case lid 60 .

[0177] At this time, the upper surface (one side surface in the stacking direction Z) 80a of the electrolysis section 80 is pressed downward by the extension wall 62b and the protrusion portion 64, so that the electrolysis section 80 is entirely inserted into the second recess (electrolysis section accommodating space) 342 while elastically deforming the elastic body 90 (see Figure 19).

[0178] Next, an O-ring 314 is inserted from the tip of the shaft (anode side power supply shaft 83b or cathode side power supply shaft 85f) of the power supply part 80a exposed to the outside of the tip electrode case 20, and placed in the O-ring insertion groove 313b formed in the pressure plate accommodating recess 313.

[0179] Then, the tip of the shaft of the power supply part 80a (the anode side power supply shaft 83b and the cathode side power supply shaft 85f) is inserted into the shaft insertion hole 316a formed in the presser plate 316, and the presser plate 316 is accommodated in the presser plate accommodating recess 313.

[0180] Then, screws 315 are inserted into screw insertion holes 316b formed in the presser plate 316 and screw holes 313c formed in the presser plate accommodating recess 313 and screwed in, thereby fixing the presser plate 316 to the electrode case 20.

[0181] In this manner, the ozone water generator (electrolytic liquid generator) 1 is assembled. In this manner, the ozone water generator (electrolytic liquid generator) 1 according to the present embodiment can be assembled simply by moving each member relative to the electrode case 20 in the stacking direction Z.

[0182] In the above embodiment, the anode side power feed shaft 83b and the cathode side power feed shaft 85f are welded to the shaft attachment pieces 83a and 85e, respectively. However, a configuration as shown in FIG. 22 is also possible.

[0183] In FIG. 22, the anode side power feed shaft 83b is provided separately from the power feeder 83 (anode 84), and the cathode side power feed shaft 85f is provided separately from the cathode 85.

[0184] When the ozone water generating device (electrolytic liquid generating device) 1 is assembled, the respective shafts are in contact with the power feeder 83 and the cathode 85.

[0185] Although FIG. 22 illustrates an example in which both the anode side power feed shaft 83b and the cathode side power feed shaft 85f are separate bodies, it is also possible to form only one of the anode side power feed shaft 83b and the cathode side power feed shaft 85f as a separate body.

[0186] Furthermore, as shown in FIG. 23, it is also possible for at least one of the members constituting the electrolysis section 80 to have a curved shape in the stacking direction Z.

[0187] 23 illustrates an example in which the power supply body 83 and the cathode 85, which are members arranged at both ends in the stacking direction Z among the members constituting the electrolysis unit 80, are curved in the stacking direction Z. Although not shown in FIG. 23, the cathode 85 has a cathode side hole that communicates with the conductive membrane side hole 86c.

[0188] When the ozone water production device (electrolytic liquid production device) 1 is assembled using the curved members in this way, the curved members are made to have a substantially flat plate shape.

[0189] This allows a pressing pressure to be generated against the conductive film 86 when the ozone water production device (electrolytic liquid production device) 1 is assembled.

[0190] That is, in FIG. 23, the power supply body 83 and the cathode 85 are curved in the stacking direction Z, so that the power supply body 83 and the cathode 85 have the function of the elastic body 90 shown in the above embodiment.

[0191] In this way, by making the shape of the power supply body 83 and the cathode 85 curved in the stacking direction Z and making the power supply body 83 and the cathode 85 generate a pressing pressure against the conductive film 86, it is possible to further improve the adhesion between the components that make up the electrolysis section 80, even when the ozone water generation device (electrolytic liquid generation device) 1 is assembled without using the elastic body 90, as shown in Figure 23.

[0192] In addition, Figure 23 shows an example of assembling the ozone water generation device (electrolytic liquid generation device) 1 without using the elastic body 90, but it is also possible to arrange the elastic body 90 below the power supply body 83 while making the shapes of the power supply body 83 and the cathode 85 curved in the stacking direction Z.

[0193] The curved shape of the members constituting the electrolysis unit 80 may be any shape as long as it generates a pressing pressure against the conductive film 86 when the ozone water generator (electrolytic liquid generator) 1 is assembled. For example, in Fig. 23, the members are curved in a direction (stacking direction Z) perpendicular to the longitudinal direction X (liquid flow direction) and are curved so as to be convex toward the conductive film 86 side, but they may be curved so as to be convex toward the side opposite the conductive film 86 side. Also, the members may be curved in a shape such as a wave shape in which multiple places are curved.

[0194] It is also possible to curve only one of the power supply body 83 and the cathode 85, or to curve other members constituting the electrolysis unit 80. That is, as long as the ozone water production device (electrolytic liquid production device) 1 is configured to generate a pressing pressure against the conductive film 86 when assembled, any of the members constituting the electrolysis unit 80 can be curved.

[0195] Next, the operation and function of the ozone water generator (electrolytic liquid generator) 1 thus configured will be described.

[0196] First, in order to supply water (liquid) to the ozone water production device (electrolytic liquid production device) 1, water (liquid) is supplied to the flow path 11 from the inlet 11a.

[0197] Then, a part of the water supplied to the flow path 11 flows into the groove portion 82 and comes into contact with the interfaces 87 and 88 of the groove portion 82 .

[0198] In this state (a state in which the electrolysis unit 80 is immersed in water by the supplied water), when the power supply unit 100 is turned on and a voltage is applied between the anode 84 and the cathode 85 of the electrolysis unit 80 by the power supply unit 100, a potential difference is generated between the anode 84 and the cathode 85 via the conductive film 86. By generating a potential difference between the anode 84 and the cathode 85 in this manner, electricity is passed through the anode 84, the conductive film 86, and the cathode 85, electrolysis is performed in the water in the groove portion 82, and ozone (electrolysis product) is generated near the interfaces 87, 88 between the conductive film 86 and the anode 84.

[0199] The voltage applied at this time is several volts to several tens of volts, and the higher the voltage (the higher the current value), the greater the amount of ozone (electrolysis product) generated.

[0200] Then, the ozone (electrolysis product) generated near the interfaces 87, 88 between the conductive film 86 and the anode 84 is carried along the flow of the water (liquid) toward the downstream side of the flow path 11 and is dissolved in the water (liquid). In this manner, dissolved ozone water (ozone water: electrolytic liquid) is generated by dissolving the ozone (electrolysis product) in the water (liquid).

[0201] Such an ozone water generator (electrolytic liquid generator) 1 can be applied to electrical equipment that uses the electrolytic liquid generated by the electrolytic liquid generator, a liquid reforming device that includes the electrolytic liquid generator, and the like.

[0202] Examples of electrical equipment and liquid reforming devices include water treatment equipment such as water purification devices, washing machines, dishwashers, warm water washing toilet seats, refrigerators, hot water supply systems, sterilizers, medical equipment, air conditioning equipment, and kitchen equipment.

[0203] As described above, the ozone water generation apparatus (electrolytic liquid generation apparatus) 1 of this embodiment has a laminate 81 in which adjacent electrodes 84, 85 are stacked so that a conductive film 86 is interposed between them, and is equipped with an electrolysis unit 80 that electrolyzes water (liquid), and a housing 10 in which the electrolysis unit 80 is arranged.

[0204] In addition, the housing 10 is formed with a flow path 11 in which a liquid passing direction X intersects with a stacking direction Z of the stack 81.

[0205] This flow path 11 has an inlet 11a connected to a water passage (upstream external flow path) 71a of the upstream piping 71 through which liquid to be supplied to the electrolysis section 80 flows in, and an outlet 11b connected to a water passage (downstream external flow path) 72a of the downstream piping 72 through which ozone water (electrolytic liquid) generated in the electrolysis section 80 flows out.

[0206] Further, in the electrolysis section 80, a groove section 82 is formed which opens to the flow path 11 and in which at least a part of interfaces 87, 88 between the conductive film 86 and the electrodes 84, 85 is exposed.

[0207] Furthermore, the housing 10 is provided with a recess 34 having an opening 332a through which the electrolysis unit 80 can be inserted, and is provided with an electrode case 20 in which the electrolysis unit 80 is accommodated within the recess 34, and an electrode case lid 60 that covers the opening 332a of the electrode case 20.

[0208] The electrolysis unit 80 is accommodated in the recess 34 with the stacking direction Z of the stack 81 substantially aligned with the opening direction of the opening 332a.

[0209] This allows the attachment direction of the electrode case lid 60 to the electrode case 20 to be approximately aligned with the stacking direction Z of the laminate 81. As a result, the ozone water generator (electrolytic liquid generator) 1 can be assembled by moving the members constituting the electrolysis unit 80 and the electrode case lid 60 relative to the electrode case 20 in the stacking direction Z. Thus, according to this embodiment, it is possible to obtain an ozone water generator (electrolytic liquid generator) 1 that can be assembled more easily.

[0210] In this embodiment, the flow path 11 is formed between the electrolysis section 80 and the electrode case lid 60 .

[0211] In this way, the flow path 11 can be formed by covering the opening 332a of the electrode case 20 with the electrode case lid 60 while the electrolysis unit 80 is housed in the recess 34. Therefore, the ozone water generator (electrolytic liquid generator) 1 having the flow path 11 can be more easily assembled.

[0212] Incidentally, in the electrolytic liquid generating apparatus disclosed in the above Patent Document 1, an electrolytic electrode device is formed by simply stacking an anode, a conductive film, and a cathode. Therefore, when stacking the anode, the conductive film, and the cathode, the positional relationship of each member may be shifted in a direction intersecting the stacking direction Z (on the XY plane).

[0213] Furthermore, when stacking the anode, conductive film, and cathode, if the relative positions of each component are shifted in a direction intersecting the stacking direction Z (on the XY plane), the contact area between the anode, conductive film, and cathode will increase or decrease, and the concentration of ozone (electrolysis product) in the ozone water (electrolytic liquid) may become unstable.

[0214] In particular, if each component is misaligned in the flow path width direction Y, the amount of exposed interface in the groove portion will vary significantly, which may cause the concentration of ozone (electrolysis product) in the ozone water (electrolytic liquid) to become more unstable.

[0215] Therefore, in this embodiment, the electrodes 84, 85 and the conductive film 86 are laminated so that at least the side surfaces 84b, 85b, 86b extending in the longitudinal direction are substantially flush with each other.

[0216] In this way, the positioning of the stack 81 in the flow path width direction Y can be achieved simply by making the side surfaces 84b, 85b, and 86b extending in the longitudinal direction of each component flush, making it easier to position the stack 81 in the flow path width direction Y.

[0217] Furthermore, by being able to suppress positional deviation in the flow path width direction Y, which has a large impact on the ability to generate ozone (electrolysis product), the concentration of ozone (electrolysis product) in the ozone water (electrolysis liquid) can be made more stable.

[0218] The electrode case 20 is provided with an introduction guide portion 353 that extends in the stacking direction Z of the stack 81 and guides the insertion of the electrolysis portion 80 into the recess .

[0219] In this manner, by providing the introduction guide portion 353, the position of each component constituting the laminate 81 is prevented from shifting during assembly of the ozone water generation apparatus (electrolytic liquid generation apparatus) 1, making it easier to assemble the ozone water generation apparatus (electrolytic liquid generation apparatus) 1.

[0220] In addition, in the electrolytic liquid generating device disclosed in the above Patent Document 1, as described above, an electrolytic electrode device is formed by simply stacking an anode, a conductive film, and a cathode, so there is a risk of gaps being generated between the stacked components. If gaps are generated between the components, there is a risk of the current flowing unevenly on the stacked surfaces of the stack. If the current flowing unevenly on the stacked surfaces of the stack in this way, there is a risk of the generation efficiency of ozone (electrolytic product) decreasing, and there is a risk of the life of the electrodes and the conductive film being shortened.

[0221] Therefore, in this embodiment, an elastic body 90 is arranged inside the housing 10 so as to be in contact with one side of the laminate 81 in the lamination direction Z in the electrolysis section 80.

[0222] In this way, by providing the elastic body 90, one side of the electrolysis unit 80 in the stacking direction Z can be pressed by the elastic body 90, and dimensional variations in the stacking direction Z of the electrolysis unit 80 can be absorbed by this elastic body 90. As a result, it becomes easier to position the electrolysis unit 80 in the stacking direction Z.

[0223] Furthermore, by providing the elastic body 90, a constant pressure can be applied to the entire electrolysis section 80, which further improves the adhesion between the various components. Increasing the adhesion between the various components in this way not only improves the efficiency of generating ozone (electrolysis product), but also extends the life of the electrodes and conductive film.

[0224] Furthermore, by using the elastic body 90 to enhance the adhesion between the various components, it becomes possible to more easily assemble the electrolysis section 80 in which the adhesion between the various components is enhanced while simplifying the configuration.

[0225] In this embodiment, an elastic body 90 is disposed between the electrolysis section 80 and the electrode case 20 .

[0226] In this way, when assembling the ozone water generation device (electrolytic liquid generation device) 1, the elastic body 90 can be placed inside the electrode case 20 (inside the recess 34), making it easier to assemble the ozone water generation device (electrolytic liquid generation device) 1.

[0227] Additionally, a welded portion 17 is formed at a peripheral portion 333 of the opening 332a in the housing 10, where the electrode case 20 and the electrode case lid 60 are welded together.

[0228] This makes it possible to more easily attach the electrode case lid 60 to the electrode case 20, and makes it easier to assemble the ozone water production device (electrolytic liquid production device) 1.

[0229] In this embodiment, the electrodes include an anode 84 and a cathode 85. Furthermore, the electrolysis unit 80 includes an anode-side power feed shaft 83b that is electrically connected to the anode 84 and applies a voltage to the anode 84, and a cathode-side power feed shaft 85f that is electrically connected to the cathode 85 and applies a voltage to the cathode 85.

[0230] The anode side power feed shaft 83b and the cathode side power feed shaft 85f extend in the stacking direction Z.

[0231] In this way, it becomes possible to uniquely determine the size and position of each member constituting the electrolysis unit 80, and it becomes possible to prevent each member from being misaligned during stacking. As a result, it becomes easier to assemble the electrolysis unit 80 and align the members, and it becomes possible to generate ozone (electrolysis product) more stably.

[0232] In this embodiment, the anode side power feed shaft 83b and the cathode side power feed shaft 85f extend toward the side opposite to the flow passage 11.

[0233] This prevents the anode side power feed shaft 83b and the cathode side power feed shaft 85f from being positioned within the flow path 11, thereby preventing the water (liquid) flowing within the flow path 11 from stagnating.

[0234] In this embodiment, the anode side power feed shaft 83b, which is either the anode side power feed shaft 83b or the cathode side power feed shaft 85f, is provided on the inlet 11a side of the electrolysis unit 80. The other, the cathode side power feed shaft 85f, is provided on the outlet 11b side of the electrolysis unit 80.

[0235] In this way, the distance between the anode side power supply shaft 83b and the cathode side power supply shaft 85f can be maximized while preventing the ozone water generation apparatus (electrolytic liquid generation apparatus) 1 from becoming large. As a result, it is possible to prevent the anode 84 and the cathode 85 from shorting out while preventing the ozone water generation apparatus (electrolytic liquid generation apparatus) 1 from becoming large.

[0236] In addition, the electrolysis unit 80 has a generally rectangular shape with the liquid passage direction X as the longitudinal direction when viewed from the stacking direction Z, and the anode side power supply shaft 83b and the cathode side power supply shaft 85f are provided at the diagonal portion 80b of the electrolysis unit 80.

[0237] This makes it possible to eliminate the directionality between the inlet side and the outlet side of the electrode case 20, and allows the ozone water production device (electrolytic liquid production device) 1 to be assembled more efficiently.

[0238] In this case, at least one of the anode side power feed shaft 83b and the cathode side power feed shaft 85f can be provided separately from the electrodes 84,85.

[0239] In this way, it is not necessary to weld the anode side power feed shaft 83b and the cathode side power feed shaft 85f, and as a result, each member constituting the electrolysis unit 80 can be processed more simply, which makes it possible to reduce costs.

[0240] Furthermore, at least one of the members constituting the electrolysis section 80 (the power supply body 83 and the cathode 85) may be curved in the stacking direction Z.

[0241] In this way, when the ozone water generating device (electrolytic liquid generating device) 1 is assembled, a stable pressing pressure can be generated against the electrodes 84, 85. As a result, the current-carrying area of ​​the electrolysis unit 80 can be more stably secured, and the generation capacity of ozone (electrolysis product) can be more stabilized. In addition, since it is no longer necessary to fasten the electrolysis unit 80 arranged in the electrode case 20 with a screw or the like, the occurrence of assembly variations can be suppressed, and the generation capacity of ozone (electrolysis product) can be more stabilized. Furthermore, since the number of parts can be reduced, it is possible to reduce costs.

[0242] Furthermore, the above-mentioned Patent Document 1 discloses an electrolytic liquid generating apparatus provided with a baffle structure for turbulently causing tap water to pass through an electrolytic electrode device. By providing such a baffle structure, tap water can be electrolyzed more efficiently.

[0243] However, simply generating turbulence is not enough to generate hydraulic force to forcibly strip the fine bubbles of the electrolysis product from the electrode interface, and there are cases where the generated electrolysis product does not peel off from the electrode interface and grows into large bubbles.

[0244] In this way, when the bubbles of the electrolysis product grow large, even if they peel off from the electrode interface, they may not dissolve in the liquid and may drift in the liquid, which may result in a decrease in the dissolved concentration of the electrolysis product in the liquid.

[0245] Therefore, in this embodiment, groove 82 is formed to have depth D1 smaller than at least one of opening width L1 of groove 82 in liquid passage direction X and height H1 of flow channel 11 in stacking direction Z.

[0246] In this way, if the height H1 in the stacking direction Z of the flow path 11 is greater than the depth D1 of the groove 82, or the opening width L1 in the liquid passage direction X of the groove 82 is greater than the depth D1 of the groove 82, the water flow becomes faster in the area where ozone (electrolysis product) is generated (near the interface 87), making it possible to strip off the generated ozone (electrolysis product) in the form of ultrafine bubbles. As a result, the ozone (electrolysis product) is prevented from floating in the liquid without being dissolved in the liquid, and the dissolved concentration of ozone (electrolysis product) in water (liquid) can be further improved.

[0247] In addition, it is possible to prevent the water (liquid) flowing in the flow path 11 from stagnating in the groove portion 82, which also makes it possible to further improve the dissolved concentration of ozone (electrolysis product) in the water (liquid).

[0248] The above-mentioned Patent Document 1 also discloses an electrolytic liquid generation device in which an anode, a conductive film, and a cathode are laminated, and water holes are provided in the conductive film and the cathode, forming a single water passage (flow path). By adopting such a configuration, it is possible to reduce the size and cost of the electrolytic liquid generation device.

[0249] However, in Patent Document 1, the height of the flow path is not specified at all. Therefore, depending on the configuration of the flow path, the flow rate of the liquid flowing through the flow path may be significantly slowed. Thus, in the structure of Patent Document 1, there is a risk that the dissolved concentration of the electrolysis product in the liquid may decrease.

[0250] Therefore, in this embodiment, the flow passage 11 is formed so that the height in the stacking direction Z is a height H1 that is smaller than the flow passage width W1.

[0251] In this way, by forming the flow path 11 so that the height in the stacking direction Z is a height H1 smaller than the flow path width W1, it is possible to increase the surface flow velocity in the vicinity of the interfaces 87, 88. Therefore, it becomes possible to dissolve the generated ozone (electrolysis product) in water (liquid) more quickly, and it becomes possible to further improve the dissolved concentration of ozone (electrolysis product) in water (liquid).

[0252] Furthermore, in the structure of Patent Document 1, as described above, the anode, the conductive film, and the cathode are simply stacked, so there is a risk that the contact between the anode and the conductive film and the contact between the conductive film and the cathode may become uneven.

[0253] In this way, if the contact between the anode and the conductive film and the contact between the conductive film and the cathode become uneven, the dissolved concentration of the electrolysis product may become unstable, and the efficiency of generation of the electrolysis product may decrease.

[0254] Therefore, in this embodiment, the protrusions 64 are arranged to contact the surface 80a of the electrolysis unit 80 on the flow path 11 side.

[0255] By bringing such protrusions 64 into contact with the surface 80a of the electrolysis unit 80 on the flow path 11 side, the electrolysis unit 80 can be pressed by the protrusions 64, so that the contact between the conductive film 86 and the electrodes 84, 85 can be made more uniform. As a result, the current density of the current flowing through the electrolysis unit 80 can be made more uniform, and the generation efficiency of ozone (electrolysis product) can be improved. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0256] In this embodiment, a protrusion 64 is formed in the center of the flow channel 11 in the width direction Y of the flow channel.

[0257] In this way, by pressing the center of the electrolysis unit 80 with the protrusion 64, the conductive film 86 and the electrodes 84, 85 can be brought into more uniform contact with each other. As a result, the current density of the current flowing through the electrolysis unit 80 can be made more uniform, and the generation efficiency of ozone (electrolysis product) can be improved. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0258] In this embodiment, a plurality of protrusions 64 are formed so as to be aligned in the liquid passage direction X.

[0259] In this way, by making the protrusions 64 press the electrolysis unit 80 along the liquid passage direction X, the conductive film 86 and the electrodes 84, 85 can be brought into more uniform contact with each other. As a result, the current density of the current flowing through the electrolysis unit 80 can be made more uniform, and the generation efficiency of ozone (electrolysis product) can be improved. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0260] In this embodiment, the protrusions 64 are formed so that at least the contact portions 64a with the electrolysis portion 80 do not overlap the grooves 82 when viewed from the stacking direction Z.

[0261] This prevents the protrusions 64 from being disposed above the grooves 82, thereby preventing the flow of water (liquid) in the grooves 82 from being hindered by the protrusions 64. As a result, the retention of air bubbles near the interfaces 87, 88 of the grooves 82 is prevented, and the concentration of dissolved ozone (electrolysis product) in the water (liquid) can be further improved.

[0262] In this embodiment, a plurality of grooves 82 are formed to be aligned in the liquid passage direction X. The liquid passage direction width L2 at least at the contact portion 64a of the protrusion 64 with the electrolysis unit 80 is made smaller than the liquid passage direction width L3 between adjacent grooves 82 in the electrolysis unit 80.

[0263] In this way, even if the position of the protrusion 64 is slightly shifted during assembly of the ozone water generator (electrolytic liquid generator) 1, the protrusion 64 can be prevented from being positioned above the groove 82. This makes it possible to more reliably prevent air bubbles from being retained near the interfaces 87, 88 of the groove 82, and further improve the concentration of dissolved ozone (electrolysis product) in water (liquid).

[0264] In this embodiment, the protrusion 64 is formed so that, when viewed from the stacking direction Z, the contour shape 64b is a polygon having rounded portions 64d formed at vertices 64c.

[0265] In this way, by forming the R portion 64d at the vertex portion 64c of the contour shape 64b of the protrusion 64, the flow of liquid in the vicinity of the protrusion 64 can be made smoother, so that the occurrence of air bubble retention can be more reliably suppressed and the dissolved concentration of ozone (electrolysis product) in the water (liquid) can be further improved.

[0266] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and various modifications are possible.

[0267] For example, in the above embodiment, an ozone water generating device that generates ozone and dissolves the ozone in water to generate ozone water is exemplified, but the substance to be generated is not limited to ozone, and for example, hypochlorous acid may be generated and used for sterilization, water treatment, etc. In addition, the device may be a device that generates oxygen water, hydrogen water, chlorine-containing water, hydrogen peroxide water, etc.

[0268] The anode 84 may be made of, for example, conductive silicon, conductive diamond, titanium, platinum, lead oxide, tantalum oxide, or the like, and may be made of any material as long as it is an electrode that has conductivity and durability that can generate electrolytic water. In addition, when the anode 84 is a diamond electrode, the manufacturing method is not limited to the manufacturing method by film formation. In addition, the substrate may be made of a material other than metal.

[0269] The cathode 85 may be any electrode that is conductive and durable, and may be made of, for example, platinum, titanium, stainless steel, conductive silicon, or the like.

[0270] In addition, the specifications of the housing, electrolytic section, and other details (shape, size, layout, etc.) can also be changed as appropriate. [Industrial Applicability]

[0271] As described above, the electrolytic liquid generating device of the present invention is capable of increasing the concentration of electrolytic products in the electrolytically treated liquid, and therefore can be used in, for example, water treatment equipment such as water purification devices, washing machines, dishwashers, warm water cleaning toilet seats, refrigerators, hot water supply systems, sterilizers, medical equipment, air conditioning equipment, kitchen equipment, and the like. [Explanation of symbols]

[0272] 1. Ozone water generator (electrolytic liquid generator) 10 Housing (electrode case 20 and electrode case lid 60) 11 Flow Path 11a Inlet 11b Outlet 17 Welded area 20 Electrode case 34 Recess 60 Electrode case cover 71a Waterway (external flow path) 72a Downstream waterway (external flow path) 80 Electrolytic section 80a surface 80e Diagonal 81 Laminate 82 Groove 82a aperture 83b Anode side power supply shaft 84 Anode (electrode) 85 Cathode (electrode) 85f Cathode power supply shaft 86 Conductive Film 87 Interface between anode 84 and conductive film 86 88 Interface between cathode 85 and conductive film 86 90 Elastic Body 332a opening 333 Periphery 353 Introduction Guide D1 Groove depth H1 Height of the flow channel in the stacking direction L1: Opening width of groove in the direction of liquid flow L2 Width in the direction of liquid flow at the contact part of the protrusion L3 Width between grooves in electrolysis section in the direction of liquid flow W1 Channel width X Liquid flow direction (longitudinal direction: front-back direction) Y Width direction (flow path width direction) Z Stacking direction (vertical direction)

Claims

[Claim 1] an electrolysis unit that has a laminate in which electrodes adjacent to each other are laminated such that a conductive film is interposed between the electrodes, and that performs electrolysis on a liquid; A housing in which the electrolysis unit is disposed; Equipped with The housing has a flow path formed therein, the flow path having a liquid passing direction intersecting with a stacking direction of the laminate, the flow path has an inlet communicating with an external flow path on an upstream side and through which a liquid to be supplied to the electrolysis unit flows in, and an outlet communicating with an external flow path on a downstream side and through which an electrolytic liquid generated in the electrolysis unit flows out, a groove portion is formed in the electrolysis portion, the groove portion being open to the flow path and exposing at least a part of an interface between the conductive film and the electrode; The housing includes a case having an opening through which the electrolysis unit can be inserted and in which the electrolysis unit is housed, and a lid covering the opening of the case, The electrolytic liquid generating device is characterized in that the case is provided with a guide portion extending in the stacking direction of the laminate and guiding the accommodation of the electrolytic portion.

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