Electrolytic liquid generating device

Abstract

An electrolytic liquid generation device of the present disclosure includes an electrolysis section having a laminate for electrolytically treating a liquid, the laminate being stacked with an electrically conductive film interposed between electrodes adjacent to each other, and a housing in which the electrolysis section is disposed. Further, the housing includes an electrode housing formed with a recess having an opening portion through which the electrolysis section can pass, the electrolysis section being housed in the recess, and an electrode housing cover covering the opening portion of the electrode housing. Also, the electrolysis section is housed in the recess in a state in which a stacking direction (Z) of the laminate is substantially coincident with an opening direction of the opening portion. Thus, an electrolytic liquid generation device that can be more easily assembled is obtained.

Description

[0001] This application is a divisional application of the invention application with application number 201680083915.0 entitled "Electrolytic Liquid Generation Apparatus", which was filed by the applicant, Panasonic Intellectual Property Management Co., Ltd., on October 4, 2016, under PCT application PCT / JP2016 / 004467, and entered the national phase on September 21, 2018. Technical Field

[0002] This disclosure relates to an apparatus for generating an electrolytic liquid. Background Technology

[0003] Conventionally, as an electrolytic liquid generating apparatus, there is a known device that has an electrolytic electrode device including an anode, a conductive membrane and a cathode, and uses the electrolytic electrode device to generate ozone (electrolysis product) to obtain ozone water (electrolytic liquid) (for example, see Patent Document 1).

[0004] The electrolytic electrode device described in Patent Document 1 has a tank formed by a hole formed in the cathode and a hole formed in the conductive membrane. Water is introduced into the tank and the introduced water is electrolyzed.

[0005] However, in the aforementioned prior art, the electrolytic electrode device is formed by supporting the support structure formed on the piping, which may complicate the assembly process of the electrolytic liquid generating device.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2012-012695 Summary of the Invention

[0009] This disclosure is intended to solve the aforementioned prior art problems, and its purpose is to provide an electrolytic liquid generation apparatus that can be more easily assembled.

[0010] To achieve the above objectives, the electrolytic liquid generating apparatus of this disclosure includes: an electrolysis unit having a laminate for electrolyzing a liquid, the laminate being formed by stacking conductive films between adjacent electrodes; and a housing having the electrolysis unit disposed inside the housing.

[0011] Furthermore, the outer shell has a flow path in which the liquid flow direction intersects with the stacking direction of the laminate.

[0012] In addition, the flow path has an inlet and an outlet. The inlet is connected to an external flow path on the upstream side to allow liquid supplied to the electrolysis section to flow in, and the outlet is connected to an external flow path on the downstream side to allow the electrolytic liquid generated in the electrolysis section to flow out.

[0013] Furthermore, a groove is formed in the electrolysis section, which opens to the flow path, and at least a portion of the interface between the conductive film and the electrode is exposed in the groove.

[0014] In addition, the outer casing includes an electrode shell and an electrode shell cover. The electrode shell has a recess with an opening through which the electrolytic unit can pass, and the electrolytic unit is housed in the recess. The electrode shell cover covers the opening of the electrode shell.

[0015] Furthermore, the electrolysis section is housed within the recess with the stacking direction of the laminated body roughly aligned with the opening direction of the opening.

[0016] Using this disclosure, an electrolytic liquid generation apparatus that can be more easily assembled can be obtained. Attached Figure Description

[0017] Figure 1 This is a perspective view obtained from above, showing the electrolytic liquid generating apparatus according to the embodiments of this disclosure.

[0018] Figure 2 This is a perspective view obtained from below, showing the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0019] Figure 3 This is a top view showing an electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0020] Figure 4 This is a side view showing an electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0021] Figure 5 This is a bottom view showing an electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0022] Figure 6 This is a front view showing an electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0023] Figure 7 yes Figure 3 Sectional view 7-7.

[0024] Figure 8 yes Figure 4 Sectional view 8-8.

[0025] Figure 9 yes Figure 4 Sectional view 9-9.

[0026] Figure 10 yes Figure 5 Sectional view 10-10.

[0027] Figure 11 yes Figure 5Sectional view 11-11.

[0028] Figure 12 This is an exploded perspective view obtained from an upper view of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0029] Figure 13 This is an exploded perspective view obtained from below, showing the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0030] Figure 14 This is a perspective view obtained by observing the electrode housing of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure from one side.

[0031] Figure 15 This is a perspective view obtained by observing the electrode housing of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure from another side.

[0032] Figure 16 This is a perspective view of the electrolysis section of an electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0033] Figure 17 This is a perspective view showing a portion of the electrolysis section of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0034] Figure 18 This is a perspective view showing the state in which the electrolytic unit of the electrolytic liquid generating apparatus according to the present disclosure is stacked inside the electrode shell.

[0035] Figure 19 This is a perspective view showing the state in which the electrolytic unit of the electrolytic liquid generating apparatus according to the present disclosure is housed in the second recess of the electrode housing.

[0036] Figure 20 This is a side sectional view schematically showing the tank and flow path of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0037] Figure 21 This is a perspective view schematically showing the relationship between the tank and the protrusion of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0038] Figure 22 This is an exploded perspective view showing a first modified example of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure.

[0039] Figure 23 This is an exploded perspective view showing a second modified example of the electrolytic liquid generating apparatus according to an embodiment of the present disclosure. Detailed Implementation

[0040] An electrolytic liquid generating apparatus according to an embodiment of the present disclosure includes: an electrolysis unit having a laminate for electrolyzing a liquid, the laminate being formed by stacking conductive films between adjacent electrodes; and a housing having the electrolysis unit disposed inside the housing.

[0041] Furthermore, the outer shell has a flow path in which the liquid flow direction intersects with the stacking direction of the laminate.

[0042] In addition, the flow path has an inlet and an outlet. The inlet is connected to an external flow path on the upstream side to allow liquid supplied to the electrolysis section to flow in, and the outlet is connected to an external flow path on the downstream side to allow the electrolytic liquid generated in the electrolysis section to flow out.

[0043] Furthermore, a groove is formed in the electrolysis section, which opens to the flow path, and at least a portion of the interface between the conductive film and the electrode is exposed in the groove.

[0044] In addition, the outer casing includes an electrode shell and an electrode shell cover. The electrode shell has a recess with an opening through which the electrolytic unit can pass, and the electrolytic unit is housed in the recess. The electrode shell cover covers the opening of the electrode shell.

[0045] Furthermore, the electrolysis section is housed within the recess with the stacking direction of the laminated body roughly aligned with the opening direction of the opening.

[0046] This allows the mounting direction of the electrode housing cover relative to the electrode housing to be approximately aligned with the stacking direction of the laminate. By moving the components relative to each other along the stacking direction, the electrolytic liquid generating device can be assembled. As a result, the electrolytic liquid generating device can be assembled more easily.

[0047] In addition, the flow path is formed between the electrolysis section and the electrode shell cover.

[0048] In this way, a flow path can be formed by covering the opening of the electrode shell with the electrode shell cover while the electrolysis section is housed in the recess, making it easier to assemble an electrolytic liquid generation device with a flow path.

[0049] Furthermore, the electrodes and conductive film are stacked together in such a way that at least the sides extending along the length direction are in approximately the same plane.

[0050] In this way, by positioning the laminate in the flow path width direction by placing the side surfaces of each component extending along the length direction on the same plane, it is easier to position the laminate in the flow path width direction.

[0051] In addition, the electrode shell is provided with an inlet guide portion that extends along the stacking direction of the laminate and is used to guide the electrolysis section to be inserted into the recess.

[0052] In this way, when assembling the electrolytic liquid generating device, the position of each component constituting the laminate is prevented from deviating during the assembly process, making it easier to assemble the electrolytic liquid generating device.

[0053] In addition, an elastomer is disposed inside the outer casing that contacts one side of the laminated body of the electrolysis unit in the lamination direction.

[0054] In this way, if an elastomer is used to press one side of the electrolytic unit in the stacking direction, the elastomer can absorb the dimensional deviation in the stacking direction of the electrolytic unit, making it easier to position the electrolytic unit in the stacking direction.

[0055] In addition, the elastomer is disposed between the electrolysis section and the electrode shell.

[0056] This allows the elastomer to be placed inside the electrode housing, making it easier to assemble the electrolytic liquid generation device.

[0057] In addition, a fusion joint is formed at the periphery of the opening of the outer casing to fuse the electrode shell and the electrode shell cover together.

[0058] This makes it easier to install the electrode housing cover onto the electrode housing and to assemble the electrolytic liquid generation device.

[0059] In addition, the electrodes include an anode and a cathode, and the electrolysis section includes an anode-side power supply shaft and a cathode-side power supply shaft. The anode-side power supply shaft is electrically connected to the anode and is used to apply voltage to the anode. The cathode-side power supply shaft is electrically connected to the cathode and is used to apply voltage to the cathode.

[0060] Furthermore, the anode-side power supply shaft and the cathode-side power supply shaft extend along the stacking direction.

[0061] In this way, the size and position of each component constituting the electrolysis unit can be uniquely determined, and misalignment of the components during stacking can be suppressed. As a result, the assembly of the electrolysis unit and the alignment of the components can be made easier, and the electrolytic products can be generated more stably.

[0062] In addition, the anode-side power supply shaft and the cathode-side power supply shaft extend toward the side opposite to the side where the flow path is located.

[0063] In this way, the anode-side power supply shaft and the cathode-side power supply shaft are not placed in the flow path, thus preventing the liquid flowing in the flow path from becoming stagnant.

[0064] In addition, either the anode-side power supply shaft or the cathode-side power supply shaft is located at the inlet side of the electrolysis section, and the other is located at the outlet side of the electrolysis section.

[0065] This allows for the suppression of larger-scale electrolytic liquid generation devices and maximizes the distance between the anode-side power supply shaft and the cathode-side power supply shaft. Consequently, it also suppresses the expansion of electrolytic liquid generation devices and prevents short circuits between the anode and cathode.

[0066] Furthermore, when viewed from the stacked direction, the electrolysis section is formed into a roughly rectangular shape with the liquid flow direction being the length direction, and the anode-side power supply shaft and the cathode-side power supply shaft are located at opposite corners of the electrolysis section.

[0067] In this way, the directionality of the inlet and outlet sides of the electrode shell can be eliminated, enabling more efficient assembly of the electrolytic liquid generation device.

[0068] In addition, at least one of the power supply shafts on the anode side and the cathode side is set independently of the electrode.

[0069] This eliminates the need for welding the anode-side power supply shaft and the cathode-side power supply shaft. As a result, the components constituting the electrolysis unit can be manufactured more easily, leading to cost reduction.

[0070] Furthermore, at least one of the components constituting the electrolysis section is formed in a shape that is bent in the stacking direction.

[0071] In this way, a stable pushing pressure can be generated on the electrodes when assembling the electrolytic liquid generation device. As a result, the energized area can be more consistently ensured, and the generation capacity of the electrolytic product can be more stable. In addition, since it is no longer necessary to use screws or the like to fasten the electrolytic unit located in the electrode housing, assembly deviations can be suppressed, and the generation capacity of the electrolytic product can be more stable. Moreover, since the number of components can be reduced, costs can be reduced.

[0072] Furthermore, the depth of the groove is smaller than at least one of the opening width in the liquid flow direction and the height in the stacking direction of the flow path.

[0073] This can suppress the stagnation of liquid flowing in the flow path within the tank, and further increase the solubility concentration of electrolysis products in the liquid.

[0074] Furthermore, the height of the flow path in the stacking direction is smaller than the width of the flow path.

[0075] This allows for a faster surface flow rate at the interface, which in turn enables the generated electrolytic products to dissolve more quickly, further increasing the concentration of the electrolytic products in the liquid.

[0076] In addition, the protrusion contacts the surface of the electrolysis section on the flow path side.

[0077] In this way, the protrusions can press against the electrolysis section, thus maintaining more reliable contact between the conductive film and the electrode. As a result, the current density flowing in the electrolysis section can be made more uniform, further improving the efficiency of electrolytic product generation.

[0078] In addition, the protrusion is formed in the center of the flow path width direction.

[0079] In this way, by pressing the center of the electrolysis section with the protrusion, the conductive film can be made into more uniform contact with the electrode. As a result, the current density flowing in the electrolysis section can be made more uniform, which can further improve the efficiency of electrolysis product generation.

[0080] In addition, multiple protrusions are formed in a manner that arranges them along the direction of liquid flow.

[0081] In this way, by pressing the protrusion against the electrolysis section along the liquid flow direction, the conductive film can be made into more uniform contact with the electrode. As a result, the current density flowing in the electrolysis section can be made more uniform, which can further improve the efficiency of electrolysis product generation.

[0082] Furthermore, the protrusion is formed such that, when viewed from the stacking direction, at least the contact portion that contacts the electrolysis section does not overlap with the tank section.

[0083] In this way, the protrusions are not positioned on the tank, thus preventing obstruction of liquid flow within the tank. As a result, bubble retention near the interface of the tank is suppressed, further increasing the solubility concentration of electrolysis products in the liquid.

[0084] Furthermore, multiple tanks are formed in a manner that they are arranged along the liquid flow direction, and the width of the contact portion of the protrusion that is in contact with the electrolysis unit is smaller in the liquid flow direction than the width of the adjacent tanks of the electrolysis unit.

[0085] In this way, even if the position of the protrusion is slightly off when assembling the electrolytic liquid generating device, the protrusion can be placed on the tank without being placed on the tank.

[0086] Furthermore, the protrusion is formed such that, when viewed from the stacking direction, the outline shape becomes a polygon with rounded corners at the apex.

[0087] In this way, by forming rounded corners at the apex of the protrusion's outline, the flow of liquid near the protrusion can be made smoother, thus suppressing the formation of trapped bubbles and further increasing the solubility concentration of electrolysis products in the liquid.

[0088] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, the present disclosure is not limited to these embodiments.

[0089] Furthermore, as an example of an electrolytic liquid generating device, an ozone water generating device is described below. This ozone water generating device produces ozone (electrolysis product), and ozone water (electrolytic liquid) is generated by dissolving the ozone in water (liquid). Ozone water is effective in sterilization and decomposition of organic matter, and is therefore widely used in water treatment, food, and medical fields, offering advantages such as no residue and no byproduct generation.

[0090] Furthermore, in the following explanation, the extension direction of the flow path will be referred to as the liquid flow direction (front-back direction) X, the width direction of the flow path will be referred to as the width direction (flow path width direction) Y, and the direction of electrode and conductive film stacking will be referred to as the stacking direction (vertical direction) Z. Moreover, the vertical direction when the electrolytic liquid generating device is configured with the electrode shell cover on the top side will be explained as the vertical direction Z.

[0091] (Implementation Method)

[0092] The ozone water generating device (electrolytic liquid generating device) 1 of this embodiment has a housing 10 with a flow path 11 formed inside. The ozone water generating device (electrolytic liquid generating device) 1 is configured to be connected to the middle of a piping 70 used to supply liquid to electrical equipment, liquid modification devices, etc. (between upstream piping 71 and downstream piping 72) (see reference). Figure 7 ).

[0093] Furthermore, by connecting the ozone water generating device (electrolyte generating device) 1 to the middle of the piping 70, the flow path 11 is connected to the external flow path (the water path 71a of the upstream piping 71 and the water path 72a of the downstream piping 72), and the ozone water (electrolyte: electrolyte) generated in the ozone water generating device (electrolyte generating device) 1 can be supplied to electrical equipment, liquid modification devices, etc.

[0094] Alternatively, the ozone water generating device (electrolytic liquid generating device) 1 may not need to be connected to the middle of the piping 70; for example, the downstream side of the ozone water generating device (electrolytic liquid generating device) 1 can be directly connected to electrical equipment, liquid modification equipment, etc. In this case, the flow path formed inside the electrical equipment, liquid modification equipment, etc., becomes the external flow path on the downstream side.

[0095] Furthermore, the electrolysis unit 80 is disposed inside the housing 10 on which the flow path 11 is formed, facing the flow path 11, and the electrolysis unit 80 is used to electrolyze the water (liquid) flowing in the flow path 11.

[0096] In this embodiment, the surface 80a of the electrolysis section 80 (the side in the Z-direction of the stacking direction) is disposed within the housing 10 such that it faces the flow path 11 (see reference). Figure 20 ).

[0097] like Figure 12 and Figure 13 As shown, the electrolysis unit 80 has a laminate 81, which is formed by stacking a conductive film 86 between an anode (electrode) 84 and a cathode (electrode) 85 (between adjacent electrodes).

[0098] On the other hand, the flow path 11 is formed on the outer shell 10 in such a way that the liquid flow direction X intersects with the lamination direction Z of the laminate 81.

[0099] The flow path 11 has an inlet 11a and an outlet 11b. The inlet 11a is connected to the water path (external flow path on the upstream side) 71a of the upstream side piping 71 to supply liquid supplied to the electrolysis unit 80. The outlet 11b is connected to the water path (external flow path on the downstream side) 72a of the downstream side piping 72 to supply ozone water (electrolyte liquid) generated in the electrolysis unit 80 to flow out.

[0100] Furthermore, a groove 82 is formed in the laminate 81, which opens into the flow path 11, and at least partially exposes the interfaces 87, 88 between the conductive film 86 and the electrodes (anode 84, cathode 85) to the groove 82 (see reference). Figure 20 ).

[0101] In this embodiment, by forming such a groove 82 in the laminate 81, water (liquid) supplied to the flow path 11 by the self-flowing inlet 11a can be introduced into the groove 82.

[0102] Furthermore, using the power supplied by the power supply unit 100, electrolysis is performed, mainly inducing an electrochemical reaction in the water (liquid) in the inlet tank 82, thereby generating ozone water (electrolyzed water: electrolyzed liquid) containing dissolved ozone (electrolysis product).

[0103] Thus, the ozone water generating device (electrolyte generating device) 1 of this embodiment induces an electrochemical reaction in water (liquid) by performing electrolysis treatment, generating ozone water (electrolyte water: electrolyte liquid) containing dissolved ozone (electrolysis product).

[0104] In addition, the ozone water (electrolyzed water: electrolyzed liquid) generated in the ozone water generating device (electrolyzed liquid generating device) 1 flows out through the flow path 11 from the outlet 11b to the outside of the ozone water generating device (electrolyzed liquid generating device) 1 (in the water path 72a of the downstream side piping 72).

[0105] The outer casing 10 includes, for example, an electrode shell 20 and an electrode shell cover 60. The electrode shell 20 can be formed using a non-conductive resin such as acrylic resin, and has a recess 34 with an opening 332a through which the electrolytic unit 80 can pass. The electrolytic unit 80 is housed in the recess 34. The electrode shell cover 60 covers the opening 332a of the electrode shell 20 (see reference). Figure 12 and Figure 13 ).

[0106] like Figure 14 and Figure 15 As shown, the electrode housing 20 includes a generally hollow, box-shaped main body 30 in which the electrolysis unit 80 is disposed. Furthermore, a generally cylindrical first connection portion (upstream side) 40, which connects to the upstream side pipe 71, is formed on one side (upstream side) of the main body 30 in the longitudinal direction (liquid flow direction: front-rear direction X). Additionally, a generally cylindrical second connection portion (downstream side) 50, which connects to the downstream side pipe 72, is formed on the other side (downstream side) of the main body 30 in the longitudinal direction (liquid flow direction: front-rear direction X).

[0107] Furthermore, a first connecting flow path (upstream flow path) 12 is formed in the first connecting part (upstream side connecting part) 40. When the first connecting part (upstream side connecting part) 40 is connected to the upstream pipe 71, the first connecting flow path (upstream side flow path) 12 is connected to the water passage 71a of the upstream pipe 71 (see reference). Figure 7 In this embodiment, the first connecting flow path (upstream flow path) 12 constitutes a part of the flow path 11, and the upstream end of the first connecting flow path (upstream flow path) 12 becomes the inlet 11a. Furthermore, a tapered portion 40a is formed at the upstream end of the first connecting portion (upstream connecting portion) 40, and the tapered portion 40a widens as it moves upstream. Thus, in this embodiment, the inlet 11a is formed to be wider than the width of the flow path on the downstream side of the first connecting flow path (upstream flow path) 12.

[0108] On the other hand, a second connecting flow path (downstream flow path) 16 is formed in the second connecting part (downstream connecting part) 50. When the second connecting part (downstream connecting part) 50 is connected to the downstream piping 72, the second connecting flow path (downstream flow path) 16 is connected to the water passage 72a of the downstream piping 72 (see reference). Figure 7In this embodiment, the second connecting flow path (downstream flow path) 16 also constitutes part of the flow path 11, and the downstream end of the second connecting flow path (downstream flow path) 16 becomes the outlet 11b. Furthermore, a tapered portion 50a is also formed at the downstream end of the second connecting portion (downstream connecting portion) 50, and the tapered portion 50a widens as it moves downstream. Thus, in this embodiment, the outlet 11b is also formed to be wider than the width of the flow path upstream of the second connecting flow path (downstream flow path) 16.

[0109] Furthermore, in this embodiment, the first connecting portion (upstream connecting portion) 40 is formed such that its upper end portion (the end portion on the side of the electrode housing cover 60) 41 protrudes upward from the main body portion 30, and the second connecting portion (downstream connecting portion) 50 is formed such that its upper end portion (the end portion on the side of the electrode housing cover 60) 51 protrudes upward from the main body portion 30. In this way, by making each upper end portion 41, 51 protrude upward from the main body portion 30, the upper end portion 41 and the upper end portion 51 are used to clamp the electrode housing cover 60 when it is installed on the electrode housing 20.

[0110] like Figure 14 and Figure 15 As shown, the main body 30 includes a bottom wall 31, a peripheral wall 32 and a top wall 33. The peripheral wall 32 is continuously disposed with the periphery of the bottom wall 31, and the top wall 33 is continuously disposed with the upper end of the peripheral wall 32. A through hole 332 is formed in the top wall 33 in the vertical direction Z.

[0111] Furthermore, a recess 34 is formed inside the main body portion 30. This recess 34 is defined by the inner surface 311 of the bottom wall portion 31, the inner surface 331 of the top wall portion 33, and the inner surface 321a (width direction) and the inner surface 321b (length direction) of the inner surface 321 (which serves as the inner surface of the peripheral wall portion 32). Thus, in this embodiment, the recess 34 is formed to open upwards. Consequently, the opening 332a formed in the top wall portion 33 becomes the opening of the recess 34.

[0112] Furthermore, the electrolytic unit 80 is inserted into the recess 34 from the opening 332a side, and is housed within the recess 34. In addition, the opening 332a is formed to be larger than the outline shape of the electrolytic unit 80 as viewed from the stacking direction Z, so that the electrolytic unit 80, whose stacking direction is consistent with the vertical direction Z, can be inserted into the recess 34 in its original position.

[0113] Furthermore, in this embodiment, stepped portions 35 are formed at both ends of the length direction (liquid flow direction: front-to-back direction X) inside the main body portion 30.

[0114] The stepped portion 35 has a middle surface 351 and a stepped surface 352. The middle surface 351 is integrally formed with the bottom wall portion 31 and the peripheral wall portion 32. It is located between the inner surface 311 of the bottom wall portion 31 and the opening portion 332a in the vertical direction Z and extends in the horizontal direction. The stepped surface 352 extends in the vertical direction and connects the middle surface 351 and the inner surface 311 of the bottom wall portion 31.

[0115] Furthermore, by forming such a stepped portion 35, the recess 34 is formed into a two-level recess structure.

[0116] Specifically, the recess 34 has a first recess (predetermined space for forming flow path) 341 and a second recess (receiving space for electrolysis section) 342. The first recess 341 is formed on the opening side and forms a part of the flow path 11. The second recess 342 is formed at a position that is more inward (lower) than the first recess (predetermined space for forming flow path) 341 and receives the electrolysis section 80.

[0117] Furthermore, the second recess (electrolysis section storage space) 342 has a main body storage recess 342a and a power supply section storage space 342b. The main body storage recess 342a stores the main body 80b of the electrolysis section 80. The power supply section storage space 342b is continuously provided on one side of the width direction Y at both ends of the main body storage recess 342a in the length direction (liquid flow direction: front-back direction X), and stores the power supply section 80c of the electrolysis section 80, which will be described later.

[0118] That is, the step surface 352 of the step portion 35 has an inner step surface 352a, an outer step surface 352b, and a connecting step surface 352c. The inner step surface 352a is located on the inner side in the length direction (liquid flow direction: front-back direction X), the outer step surface 352b is located on the outer side in the length direction (liquid flow direction: front-back direction X), and the connecting step surface 352c connects the inner step surface 352a and the outer step surface 352b. Furthermore, the intermediate surface 351 is formed such that, when viewed from the vertical direction Z, the boundary line on the inner side in the length direction (liquid flow direction: front-back direction X) is formed into a crank-shaped bend.

[0119] Thus, in this embodiment, the first recess (predetermined space for flow path formation) 341 is formed by the inner surface 331 of the top wall portion 33, the upper part of the width-direction side inner surface 321a and the length-direction side inner surface 321b of the peripheral wall portion 32, and the middle surface 351 of the step portion 35.

[0120] Furthermore, the second recess (electrolysis section storage 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 part of the width-direction side inner surface 321a.

[0121] Furthermore, as described above, the electrolytic unit 80 is housed within the second recess (electrolysis unit storage space) 342. At this time, the electrolytic unit 80 is housed with its stacking direction aligned with the vertical direction Z.

[0122] Furthermore, in this embodiment, the electrolytic unit 80 is housed within the second recess (electrolytic unit housing space) 342, with the elastic body 90 in contact with it. That is, the electrolytic unit 80 is housed within the second recess (electrolytic unit housing space) 342 with the elastic body 90 positioned between the electrolytic unit 80 and the electrode shell 20, and the elastic body 90 abutting against the lower surface 80d of the electrolytic unit 80. The elastic body 90 can be formed from elastic materials such as rubber, plastic, or metal springs.

[0123] Furthermore, in this embodiment, when the electrode housing cover 60 is installed on the electrode housing 20, an electrolysis section side flow path 14 is formed on the upper surface (the side of the layering direction Z) 80a and the middle surface 351 of the electrolysis section 80. Thus, in this embodiment, a flow path 11 is formed between the electrolysis section 80 and the electrode housing cover 60.

[0124] Furthermore, in this embodiment, upwardly protruding guide protrusions (introduction guides) 353 are formed on both sides of the inner boundary portion in the length direction (liquid flow direction: front-back direction X) of the middle surface 351 of the stepped portion 35. That is, guide protrusions (introduction guides) 353 are provided at the four corners of the second recess (electrolysis section receiving space) 342, and these guide protrusions (introduction guides) 353 are used to guide the electrolysis section 80 into the second recess (electrolysis section receiving space) 342.

[0125] Furthermore, a first main body side flow path 13 communicating with the first connecting flow path (upstream side flow path) 12 is formed on one side (upstream side) of the peripheral wall 32 along its length direction (liquid flow direction: front-back direction X). And a second main body side flow path 15 communicating with the second connecting flow path (downstream side flow path) 16 is formed on the other side (downstream side) of the peripheral wall 32 along its length direction (liquid flow direction: front-back direction X).

[0126] Thus, 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 reference). Figure 7 At this time, the portion of flow path 11 other than the portion forming the inlet 11a and the portion forming the outlet 11b is formed with approximately the same cross-sectional area.

[0127] In addition, such as Figure 6 and Figure 8As shown, the flow path 11 is formed as a rectangle with a wider width in the width direction Y. That is, the height of the flow path 11 in the stacking direction Z is a height H1 that is smaller than the width W1 of the flow path. In this embodiment, the flow path 11 is formed with a flow path width W1 of approximately 10 mm and a height H1 in the stacking direction Z of approximately 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 in the flow path is approximately 1.67 m / s.

[0128] Furthermore, in this embodiment, the power supply unit storage space 342b located on one side (upstream side) in the length direction (liquid flow direction: front-back direction X) is formed on one side in the width direction Y, and the power supply unit storage space 342b located on the other side (downstream side) in the length direction (liquid flow direction: front-back direction X) is formed on the other side in the width direction Y. That is, a pair of power supply unit storage spaces 342b are formed in the diagonal portion of the main body storage recess 342a.

[0129] Therefore, in this embodiment, the recess 34 is formed to be point-symmetrical about the center of the main body 30 when viewed from the vertical direction Z.

[0130] In addition, in this embodiment, the outer casing 10 itself (electrode casing 20 and electrode casing cover 60) is also formed to be point-symmetrical about the center of the outer casing 10 when viewed from the vertical direction Z.

[0131] The electrode housing cover 60 includes a cover body 61 and a fitting protrusion 62. The cover body 61 is in the shape of a generally rectangular plate. The fitting protrusion 62 protrudes downward from the lower center of the cover body 61 and fits into the opening 332a of the electrode housing 20.

[0132] Furthermore, a welding protrusion 63 protruding downwards is formed around the entire periphery of the cover body 61 adjacent to the fitting protrusion 62. When the electrode housing cover 60 is installed on the electrode housing 20, the welding protrusion 63 is inserted into the groove 333a, which is formed around the entire periphery of the opening 332a of the top wall portion 33 of the electrode housing 20.

[0133] Furthermore, with the fitting protrusion 62 fitted into the opening 332a and the welding protrusion 63 inserted into the groove 333a, the electrode housing cover 60 and the electrode housing 20 are welded together using vibration welding, thermal welding, or the like, thereby sealing the recess 34 of the electrode housing 20 with the electrode housing cover 60. At this time, a welding portion 17 is formed at the junction of the welding protrusion 63 and the groove 333a.

[0134] Alternatively, the electrode housing cover 60 can be threaded onto the electrode housing 20 with the sealing material between the electrode housing cover 60 and the electrode housing 20, thereby sealing the recess 34 of the electrode housing 20 with the electrode housing cover 60.

[0135] Furthermore, at both ends of the lower surface 62a of the fitting protrusion 62 in the width direction Y, there are extended setting walls 62b extending in the length direction (liquid flow direction: front-back direction X). When the electrode housing cover 60 is installed on the electrode housing 20, the two ends of the electrolysis section side flow path 14 are defined by the extended setting walls 62b.

[0136] Furthermore, in this embodiment, the extended wall 62b is positioned inside the guide protrusions (inlet guides) 353 located at the four corners of the second recess (electrolysis section housing space) 342 in the longitudinal direction (liquid flow direction: front-back direction X). The extended wall 62b is also configured to overlap with the guide protrusions (inlet guides) 353 when viewed from the longitudinal direction (liquid flow direction: front-back direction X).

[0137] In this embodiment, by providing such an extended wall 62b, turbulence in the vicinity of the guide protrusion (introducing guide portion) 353 can be suppressed.

[0138] Furthermore, a plurality of protrusions 64 are formed at the center of the lower surface 62a of the fitting protrusion 62 in the width direction Y. They are arranged in the length direction (liquid flow direction: front-back direction X).

[0139] Furthermore, when the electrolytic part 80 is housed in the second recess (electrolytic part housing space) 342 through the elastic body 90 and the electrode housing cover 60 is installed on the electrode housing 20, the electrolytic part 80 is pressed downward by the protrusion 64 provided on the electrode housing cover 60.

[0140] Thus, in this embodiment, by pressing the electrolysis section 80 downward, the elastic body 90 applies a certain pressure to the entire electrolysis section 80, thereby further improving the tightness of the components constituting the electrolysis section 80.

[0141] Furthermore, when the electrode housing cover 60 is installed on the electrode housing 20, the upper surface (the side surface on one side in the stacking direction Z) 80a of the electrolysis section 80 is approximately on the same plane as the intermediate surface 351. This suppresses the formation of steps in the flow path 11. Additionally, the cross-sectional area of ​​the portion of the flow path formed in the upper part of the electrolysis section 80 (electrolysis section side flow path 14) is made approximately the same as the cross-sectional area of ​​the other portions of the flow path.

[0142] In this way, if the cross-sectional area of ​​the flow path 11 is made approximately the same, the turbulence of the water (liquid) flowing within the flow path 11 can be suppressed. As a result, the formation of stagnation within the flow path 11 can be suppressed, thus inhibiting the growth of ozone (electrolysis product) into bubbles, and further increasing the concentration of ozone (electrolysis product) in the ozone water (electrolyte) flowing out of the outlet 11b.

[0143] Next, the specific structure of the electrolysis section 80 will be explained.

[0144] like Figure 16 and Figure 17 As shown, when viewed from the stacking direction Z, the electrolysis unit 80 is formed in a generally rectangular shape with the liquid flow direction X being the length direction. Furthermore, the electrolysis unit 80 includes a laminate 81, which is formed by sequentially stacking an anode 84, a conductive film 86, and a cathode 85. Thus, in this embodiment, the laminate 81 is formed such that the conductive film 86 is sandwiched between adjacent electrodes (anode 84 and cathode 85). Additionally, in this embodiment, a titanium power supply element 83 is, for example, stacked below the anode 84, and power is supplied to the anode 84 by means of this power supply element 83.

[0145] Furthermore, in this embodiment, a groove 82 is formed in the laminate 81, the groove 82 having an opening 82a leading to the flow path 11, and the groove 82 is configured to allow at least a portion of the interface 88 between the conductive film 86 and the cathode 85 to contact water (liquid). Additionally, the groove 82 is configured to allow at least a portion of the interface 87 between the conductive film 86 and the anode 84 to also contact water (liquid).

[0146] Specifically, a cathode side hole 85c is formed in the cathode 85, and a conductive film side hole 86c is formed in the conductive film 86. Furthermore, when the cathode 85 and the conductive film 86 are stacked together, the cathode side hole 85c communicates with the conductive film side hole 86c.

[0147] Therefore, the inner surface 86d of the conductive film 86 and the inner surface 85d of the cathode 85 become the side surface 82c of the groove 82, and the upper surface (surface) 84a of the anode 84 becomes the bottom surface 82b of the groove 82 (see reference). Figure 20 By forming such a groove 82, at least a portion of the interface 88 between the conductive film 86 and the cathode 85 (the interface between the conductive film and the electrode) is exposed to the groove 82, allowing water to freely contact the interface 88 exposed to the groove 82. Furthermore, at least a portion of the interface 87 between the conductive film 86 and the anode 84 (the interface between the conductive film and the electrode) is also exposed to the groove 82, allowing water to freely contact the interface 87 exposed to the groove 82.

[0148] In this embodiment, the groove 82 is formed such that both ends of the groove extending elongatedly along the width direction Y are bent towards the upstream side. That is, the cathode side hole 85c formed on the cathode 85 and extending through the stacking direction Z is formed into a V-shape with the bending point disposed on the downstream side.

[0149] Furthermore, the conductive film side hole 86c formed on the conductive film 86 and extending along the stacking direction Z is also formed as a V-shape with the bending point located on the downstream side. By connecting the cathode side hole 85c and the conductive film side hole 86c, a V-shaped groove 82 is formed.

[0150] Furthermore, the shape of the groove 82 is not limited to the aforementioned V-shape, and can be set to various shapes. For example, it can be set to a rectangle that is slender in the width direction Y.

[0151] Furthermore, in this embodiment, it is illustrated that a plurality of grooves 82 are formed in an arrangement along the length direction X, but at least one groove 82 need to be formed.

[0152] Furthermore, in this embodiment, the interface 88 between the conductive film 86 and the cathode 85 is the boundary line between the side surface of the cathode 85 and the side surface of the conductive film 86. Additionally, the interface 87 between the conductive film 86 and the anode 84 is the intersection line between the surface of the anode 84 and the side surface of the conductive film 86.

[0153] Furthermore, the conductive film 86 and the cathode 85 may be the same size or different sizes, but at least their holes (cathode-side hole 85c and conductive film-side hole 86c) must be interconnected, and sufficient electrical contact area must be ensured. Therefore, considering the above, it is preferable that the projected dimensions of the conductive film 86 and the cathode 85 are approximately the same (approximately the same size when viewed from the stacking direction Z).

[0154] Furthermore, the anode 84 may be the same size as the conductive film 86 and the cathode 85, or they may be different sizes, but preferably, the anode 84 is large enough to be visible from all the grooves 82 when viewed from the stacking direction Z.

[0155] In this embodiment, the anode 84, cathode 85, and conductive film 86 are made to have approximately the same projected size.

[0156] In this way, when the laminate 81 is formed, the sides of the anode 84, cathode 85, and conductive film 86 are on approximately the same plane.

[0157] That is, when the laminate 81 is formed, at least the side surfaces 84b, 85b, and 86b of the anode 84, cathode 85, and conductive film 86 extending along the length direction are in approximately the same plane.

[0158] Furthermore, in this embodiment, the power supply body 83 and the elastomer 90 also have approximately the same projected dimensions as the anode 84, cathode 85, and conductive film 86.

[0159] The electrolysis unit 80 receives ion supply from the conductive membrane 86 and current from the power supply unit 100, and performs electrolysis treatment to generate ozone by electrochemical means at the interface 87 between the anode 84 and the conductive membrane 86.

[0160] The electrochemical reaction is as follows.

[0161] Anode side: 3H₂O → O₃ + 6H ＋ +6e －

[0162] 2H₂O→O₂+4H ＋ +4e －

[0163] Cathode side: 2H ＋ +2e － →H2

[0164] For example, titanium can be used to form the power supply body 83, which is configured to contact the anode 84 on the side opposite to the side where the conductive film 86 is located. A shaft mounting plate 83a is formed at one end of the power supply body 83, and the anode-side power supply shaft 83b is mounted to the shaft mounting plate 83a by welding or the like. In this way, the anode-side power supply section 80c is formed by mounting the anode-side power supply shaft 83b to the shaft mounting plate 83a.

[0165] Furthermore, the power supply unit 83 is electrically connected to the power supply unit 100 via the conductor 102a on the anode 102 side connected to the anode-side power supply shaft 83b.

[0166] In this embodiment, the anode-side power supply shaft 83b is mounted on the shaft mounting plate 83a, extending along the stacking direction Z. The power supply unit 83 is inserted into the second recess (electrolysis section receiving space) 342 with the anode-side power supply shaft 83b extending towards the side opposite to the side where the flow path 11 is located (the lower side). At this time, a pair of power supply section through holes 313a for the shaft of the power supply section 80c are formed on the bottom wall portion 31 of the electrode housing 20, communicating with each power supply section receiving space 342b, with the anode-side power supply shaft 83b passing through one power supply section through hole 313a. Furthermore, the wire 102a is connected to the portion of the anode-side power supply shaft 83b exposed outside the electrode housing 20.

[0167] For example, an anode 84 can be formed by depositing a conductive diamond film on a conductive substrate with a width of approximately 10 mm and a length of approximately 50 mm using silicon. This conductive diamond film has boron-doped conductivity. The conductive diamond film is formed on the conductive substrate with a thickness of approximately 3 μm using plasma CVD.

[0168] In addition, in this embodiment, the anode 84 and cathode 85 are plate-shaped, but the anode 84 and cathode 85 can also be film-shaped, mesh-shaped, or wire-shaped.

[0169] A conductive film 86 is disposed on the anode 84 on which a conductive diamond film is formed. This conductive film 86 is a proton-conducting ion exchange membrane with a thickness of approximately 100 μm to 200 μm. Furthermore, as... Figure 12 and Figure 13 As shown, a plurality of conductive film side holes 86c are formed in the conductive film 86, which extend along the thickness direction (Z direction).

[0170] In this embodiment, all conductive film side holes 86c are configured with the same shape. Furthermore, the plurality of conductive film side holes 86c are arranged in a row along the length direction X. Alternatively, the shape and arrangement of the conductive film side holes 86c can also be other configurations.

[0171] The cathode 85 is disposed on the conductive film 86. The cathode 85 is, for example, formed of a stainless steel electrode plate with a thickness of approximately 0.5 mm. Figure 12 and Figure 13 As shown, a plurality of cathode side holes 85c extending along the thickness direction are formed in the cathode 85.

[0172] The cathode-side hole 85c has the same or similar opening shape as the conductive film-side hole 86c. Furthermore, the cathode-side hole 85c is arranged with the same pitch and orientation as the conductive film-side hole 86c.

[0173] Furthermore, a shaft mounting plate 85e is formed at one end of the cathode 85, and the cathode-side power supply shaft 85f is mounted to the shaft mounting plate 85e by means of welding or the like. In this way, the cathode-side power supply section 80c is formed by mounting the cathode-side power supply shaft 85f to the shaft mounting plate 85e.

[0174] Furthermore, the cathode 85 is electrically connected to the power supply unit 100 via a wire 101a on the cathode 101 side connected to the cathode-side power supply shaft 85f.

[0175] In this embodiment, the cathode-side power supply shaft 85f is also mounted on the shaft mounting plate 85e, extending along the stacking direction Z. The cathode 85 is inserted into the second recess (electrolysis section receiving space) 342 with the cathode-side power supply shaft 85f extending towards the side opposite to the side where the flow path 11 is located (the lower side). At this time, the cathode-side power supply shaft 85f passes through another power supply section through hole 313a, and the wire 101a is connected to the portion of the cathode-side power supply shaft 85f exposed outside the electrode housing 20.

[0176] In this embodiment, as described above, a pair of power supply unit storage spaces 342b are formed in the diagonal portion of the main body storage recess 342a.

[0177] Therefore, in this embodiment, the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are provided at the diagonal portion 80e of the electrolysis section 80.

[0178] Furthermore, in this embodiment, the anode-side power supply shaft 83b, which is either the anode-side power supply shaft 83b or the cathode-side power supply shaft 85f, is provided on the inlet 11a side of the electrolysis section 80. The cathode-side power supply shaft 85f, which is the other, is provided on the outlet 11b side of the electrolysis section 80.

[0179] Furthermore, the electrolysis unit 80 is arranged in the recess 34 with the arrangement of multiple tanks 82 in a direction that is approximately consistent with the front-back direction X.

[0180] The power supply unit 100 generates a potential difference between the anode 84 and the cathode 85 separated by a conductive film 86. The anode 84 is electrically connected to the anode 102 side of the power supply unit 100 via a wire 102a, and the cathode 85 is electrically connected to the cathode 101 side of the power supply unit 100 via a wire 101a (see reference). Figure 4 The power supply unit 100 can be electrically connected to a control unit (not shown) via wiring (not shown). By connecting the power supply unit 100 to the control unit, the power supply unit 100 can be switched on, off, or its output can be changed.

[0181] In this embodiment, the groove 82 is formed such that its depth D1 is smaller than at least one of the opening width L1 in the liquid flow direction X of the groove 82 and the height H1 in the stacking direction Z of the flow path 11 (see reference). Figure 8 and Figure 20 ).

[0182] That is, the groove 82 is formed such that 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 flow direction X of the groove 82 is greater than the depth D1 of the groove 82.

[0183] In this embodiment, as described above, the height H1 in the stacking direction Z of the flow path 11 is set to approximately 2 mm.

[0184] Furthermore, 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 therefore is about 0.6 mm to about 0.7 mm in this embodiment.

[0185] In addition, the opening width L1 of the groove 82 in the liquid flow direction X is about 1.5 mm.

[0186] Thus, in this embodiment, the groove 82 is formed such that the height H1 in the stacking direction Z of the flow path 11 is greater than the depth D1 of the groove 82 and the opening width L1 in the liquid flow direction X of the groove 82 is greater than the depth D1 of the groove 82.

[0187] Furthermore, in this embodiment, the protrusion 64 contacts only the upper surface (the side facing the Z-direction) 80a of the electrolysis section 80. That is, when viewed from the Z-direction, the contact portion 64a of the protrusion 64 that contacts the electrolysis section 80 does not overlap with the groove portion 82.

[0188] Specifically, such as Figure 21 As shown, the liquid flow direction width L2 of the contact portion 64a of the protrusion 64 that contacts at least the electrolysis section 80 is smaller than the liquid flow direction width L3 between the adjacent tank portions 82 of the electrolysis section 80, so that the protrusion 64 contacts only the upper surface (the side surface on one side in the stacking direction Z) 80a of the electrolysis section 80.

[0189] In this embodiment, the liquid flow direction width L2 of the contact portion 64a of the protrusion 64 that contacts the electrolysis unit 80 is approximately 1.5 mm.

[0190] Furthermore, the liquid flow direction width L3 between adjacent tanks 82 of the electrolysis section 80 is approximately 2.0 mm.

[0191] In addition, in this embodiment, the protrusion 64 is formed such that the width of the liquid flow direction of all parts of the protrusion 64 from the top (bottom) to the root (top) is smaller than the width L3 of the liquid flow direction between the grooves 82.

[0192] Furthermore, in this embodiment, the upper surface (the side surface in the Z-direction of the stacking direction) 80a of the electrolysis section 80 is present in such a way that it surrounds the entire circumference of the contact portion 64a of the protrusion 64 that contacts the electrolysis section 80. In this way, even if the protrusion 64 is misaligned in any direction in the XY plane, the entire surface of the contact portion 64a of the protrusion 64 that contacts the electrolysis section 80 can still contact the upper surface (the side surface in the Z-direction of the stacking direction) 80a of the electrolysis section 80.

[0193] Furthermore, in this embodiment, the protrusion 64 is formed such that, when viewed from the stacking direction Z, the outline shape 64b becomes a quadrilateral (polygon) with rounded corners 64d formed at the vertex portion 64c.

[0194] For example, an ozone water generating device (electrolytic liquid generating device) 1 with the structure shown below can be assembled using the method described below.

[0195] First, the elastomer 90 is inserted into the recess 34 from the opening 332a side of the electrode shell 20, and the elastomer 90 is placed in the second recess (electrolysis section storage space) 342.

[0196] Next, with the top end of the anode-side power supply shaft 83b facing downwards, the power supply body 83 is inserted into the recess 34 from the opening 332a side of the electrode housing 20, and the anode-side power supply shaft 83b passes through a power supply through hole 313a, thereby stacking the main body of the power supply body 83 onto the elastic body 90.

[0197] Next, the anode 84 is inserted into the recess 34 from the opening 332a side of the electrode housing 20, and the anode 84 is stacked on the power supply body 83.

[0198] Next, the conductive film 86 is inserted into the recess 34 from the opening 332a side of the electrode housing 20, and the conductive film 86 is stacked on the anode 84.

[0199] Next, with the top end of the cathode-side power supply shaft 85f facing downwards, the cathode 85 is inserted into the recess 34 from the opening 332a side of the electrode housing 20, and the cathode-side power supply shaft 85f passes through the through hole 313a of another power supply section, thereby stacking the main body of the cathode 85 on the conductive film 86.

[0200] At this time, the elastomer 90 and each component constituting the electrolysis section 80 are inserted into the second recess (electrolysis section receiving space) 342 while being guided by the guide protrusion (introduction guide) 353.

[0201] However, by stacking the elastomer 90 and the components constituting the electrolysis section 80 only within the recess 34, the elastomer 90 is in a nearly free state (a state of essentially no elastic deformation).

[0202] Therefore, at least the cathode 85 in the electrolysis section 80 is in a state where it floats upward above the intermediate surface 351 (see reference). Figure 18 However, the relative movement of the cathode 85, which floats upwards from the intermediate surface 351, in the length direction X is suppressed by the guide protrusion (introducing guide portion) 353. In addition, in this embodiment, the elastomer 90 and each component constituting the electrolysis unit 80 are positioned in the width direction Y by the inner surface 321a on the width side.

[0203] Then, by moving the electrode housing cover 60 relative to the electrode housing 20 in the stacking direction Z, the fitting protrusion 62 is fitted with the opening 332a, and the welding protrusion 63 is inserted into the groove 333a.

[0204] Furthermore, with the fitting protrusion 62 fitted into the opening 332a and the welding protrusion 63 inserted into the groove 333a, the electrode housing cover 60 and the electrode housing 20 are welded together by vibration welding, thermal welding, or the like.

[0205] In this way, the electrode shell cover 60 seals the recess 34 of the electrode shell 20.

[0206] At this time, the upper surface (the side surface on the Z-direction of the stacking direction) 80a of the electrolysis unit 80 is pressed downward by the extended wall 62b and the protrusion 64, so that the electrolysis unit 80 is inserted entirely into the second recess (electrolysis unit storage space) 342 while causing the elastomer 90 to undergo elastic deformation (see reference). Figure 19 ).

[0207] Next, an O-ring 314 is inserted into the top of the shaft (anode-side power supply shaft 83b, cathode-side power supply shaft 85f) of the power supply section 80c exposed to the outside of the electrode housing 20, and the O-ring 314 is positioned in the O-ring insertion groove 313b formed in the pressure plate receiving recess 313.

[0208] Then, the top end of the shaft of the power supply section 80c (anode-side power supply shaft 83b, cathode-side power supply shaft 85f) passes through the shaft through hole 316a formed in the pressure plate 316, and the pressure plate 316 is housed in the pressure plate housing recess 313.

[0209] Then, by inserting screws 315 into the screw through hole 316b formed in the pressure plate 316 and the threaded hole 313c formed in the pressure plate receiving recess 313 and threading them in place, the pressure plate 316 is fixed to the electrode housing 20.

[0210] The ozone water generating device (electrolyte generating device) 1 is assembled in this way. Thus, the ozone water generating device (electrolyte generating device) 1 of this embodiment can be assembled simply by moving each component relative to the electrode housing 20 along the stacking direction Z.

[0211] Furthermore, in the above embodiment, an example is shown where the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are fused to the shaft mounting plates 83a and 85e, but it is also possible to form [the following]. Figure 22 That kind of structure.

[0212] exist Figure 22In the middle, an anode-side power supply shaft 83b is provided independently from the power supply body 83 (anode 84), and a cathode-side power supply shaft 85f is provided independently from the cathode 85.

[0213] Furthermore, when assembling the ozone water generating device (electrolytic liquid generating device) 1, each shaft is in contact with the power supply body 83 and the cathode 85.

[0214] In addition, Figure 22 In the example, both the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are shown to be independent of the electrode, but it is also possible to set only one of the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f to be independent of the electrode.

[0215] In addition, such as Figure 23 As shown, at least one of the components constituting the electrolysis section 80 can also be formed into a shape that is bent in the stacking direction Z.

[0216] exist Figure 23 In the example shown, the components constituting the electrolysis section 80, namely the power supply element 83 and the cathode 85, which are located at both ends in the stacking direction Z, are formed into a shape that is bent in the stacking direction Z. Furthermore, although in Figure 23 The illustration is omitted, but a cathode side hole communicating with the conductive film side hole 86c is formed in the cathode 85.

[0217] Furthermore, when the ozone water generating device (electrolyte generating device) 1 is assembled using such a curved component, the curved component becomes a roughly flat plate.

[0218] In this way, when the ozone water generating device (electrolyte generating device) 1 is assembled, a pushing pressure is generated on the conductive membrane 86.

[0219] That is, in Figure 23 In this embodiment, by forming the power supply body 83 and the cathode 85 into a shape that is bent in the stacking direction Z, the power supply body 83 and the cathode 85 are made to have the function of the elastomer 90 shown in the above embodiment.

[0220] Thus, if the power supply body 83 and the cathode 85 are shaped to be bent in the stacking direction Z, and the power supply body 83 and the cathode 85 exert a pushing pressure on the conductive film 86, then... Figure 23 As shown, even when the ozone water generating device (electrolyte generating device) 1 is assembled without using the elastomer 90, the tightness of the components constituting the electrolysis section 80 can be further improved.

[0221] In addition, Figure 23In the example shown, an ozone water generating device (electrolyte generating device) 1 is assembled without using the elastomer 90, but it is also possible to form the shape of the power supply body 83 and the cathode 85 into a shape that is bent in the stacking direction Z, and to place the elastomer 90 below the power supply body 83.

[0222] Furthermore, the bending shape of the components constituting the electrolysis section 80 can be any shape, as long as it generates a pressing pressure on the conductive film 86 when the ozone water generating device (electrolyte generating device) 1 is assembled. For example, in Figure 23 In this process, the component is bent in a direction orthogonal to the length direction X (the liquid flow direction) (the stacking direction Z), and is bent in a way that protrudes toward the conductive film 86. However, the component can also be bent in a way that protrudes toward the opposite side of the conductive film 86. In addition, it can also be formed into a shape with multiple parts bent, such as a wave shape.

[0223] Furthermore, it is possible to bend either the power supply body 83 or the cathode 85, or to bend the other components constituting the electrolysis section 80. That is, as long as the structure that generates pressure on the conductive membrane 86 when the ozone water generating device (electrolyte generating device) 1 is assembled, the shape of any component constituting the electrolysis section 80 can be formed into a bent shape.

[0224] Next, the operation and function of the ozone water generating device (electrolytic liquid generating device) 1 with this structure will be explained.

[0225] First, water (liquid) is supplied from the inlet 11a to the flow path 11 in order to supply water (liquid) to the ozone water generating device (electrolytic liquid generating device) 1.

[0226] Furthermore, a portion of the water supplied to the flow path 11 flows into the tank 82 and comes into contact with the interfaces 87 and 88 of the tank 82.

[0227] In this state (where the electrolysis unit 80 is immersed in water using supplied water), when the power supply unit 100 is turned on and a voltage is applied between the anode 84 and cathode 85 of the electrolysis unit 80, a potential difference is generated between the anode 84 and cathode 85, separated by a conductive film 86. By generating a potential difference between the anode 84 and cathode 85, the anode 84, conductive film 86, and cathode 85 are energized, and electrolysis is performed in the water within the tank 82. Ozone (an electrolysis product) is generated near the interfaces 87 and 88 between the conductive film 86 and the anode 84.

[0228] The applied voltage is several volts to tens of volts. The higher the voltage (the higher the current value), the greater the amount of ozone (electrolysis product) produced.

[0229] Furthermore, the ozone (electrolysis product) generated near the interfaces 87 and 88 between the conductive film 86 and the anode 84 dissolves in the water (liquid) as it flows downstream along the flow path 11. Thus, dissolved ozone water (ozone water: electrolytic liquid) is generated by dissolving the ozone (electrolysis product) in the water (liquid).

[0230] Such an ozone water generating device (electrolyte generating device) 1 can be applied to electrical equipment that utilizes the electrolyte generated in the electrolyte generating device, liquid modification devices equipped with the electrolyte generating device, etc.

[0231] In addition, examples of electrical equipment and liquid modification devices include water treatment equipment such as water purification devices, washing machines, dishwashing machines, warm water toilets, refrigerators, hot water supply devices, sterilization devices, medical equipment, air conditioning equipment, and kitchen equipment.

[0232] As described above, the ozone water generating device (electrolyte generating device) 1 of this embodiment includes: an electrolysis unit 80 having a laminate 81 for electrolyzing water (liquid), the laminate 81 being formed by stacking conductive films 86 between adjacent electrodes 84, 85; and a housing 10, the electrolysis unit 80 being disposed inside the housing 10.

[0233] Furthermore, a flow path 11 is formed in the outer shell 10 such that the liquid flow direction X intersects with the stacking direction Z of the laminate 81.

[0234] The flow path 11 has an inlet 11a and an outlet 11b. The inlet 11a is connected to the water path (external flow path on the upstream side) 71a of the upstream side piping 71 to supply liquid supplied to the electrolysis unit 80. The outlet 11b is connected to the water path (external flow path on the downstream side) 72a of the downstream side piping 72 to supply ozone water (electrolyte liquid) generated in the electrolysis unit 80 to flow out.

[0235] Furthermore, a groove 82 is formed in the electrolysis section 80, which opens into the flow path 11, and at least part of the interfaces 87 and 88 between the conductive film 86 and the electrodes 84 and 85 are exposed in the groove 82.

[0236] Furthermore, the outer casing 10 includes an electrode shell 20 and an electrode shell cover 60. The electrode shell 20 has a recess 34 with an opening 332a through which the electrolytic unit 80 can pass. The electrolytic unit 80 is housed in the recess 34. The electrode shell cover 60 covers the opening 332a of the electrode shell 20.

[0237] Furthermore, the electrolysis section 80 is housed in the recess 34 with the stacking direction Z of the laminate 81 approximately aligned with the opening direction of the opening 332a.

[0238] Therefore, the mounting direction of the electrode housing cover 60 relative to the electrode housing 20 can be made approximately consistent with the stacking direction Z of the laminate 81. As a result, by moving the components constituting the electrolysis section 80 and the electrode housing cover 60 relative to the electrode housing 20 along the stacking direction Z, the ozone water generating device (electrolyte liquid generating device) 1 can be assembled. Thus, by adopting this embodiment, an ozone water generating device (electrolyte liquid generating device) 1 that can be assembled more easily can be obtained.

[0239] Furthermore, in this embodiment, the flow path 11 is formed between the electrolysis section 80 and the electrode housing 60.

[0240] In this way, the flow path 11 can be formed by covering the opening 332a of the electrode shell 20 with the electrode shell cover 60 while the electrolysis section 80 is housed in the recess 34. Therefore, it is easier to assemble the ozone water generating device (electrolyte generating device) 1 with the flow path 11.

[0241] Furthermore, in the electrolytic liquid generation apparatus disclosed in Patent Document 1, the electrolytic electrode device is formed only by stacking an anode, a conductive film, and a cathode. Therefore, when stacking the anode, conductive film, and cathode, the positional relationship of each component may deviate in the direction intersecting the stacking direction Z (on the XY plane).

[0242] Furthermore, when the anode, conductive film, and cathode are stacked, if the positional relationship of each component deviates in the direction intersecting the stacking direction Z (on the XY plane), the contact area of ​​the anode, conductive film, and cathode will increase or decrease, and the concentration of ozone (electrolysis product) in ozone water (electrolyte) may become unstable.

[0243] In particular, when the components deviate in the Y direction of the flow path width, the exposure of the interface in the tank changes significantly, so the concentration of ozone (electrolysis product) in ozone water (electrolyte) may become more unstable.

[0244] Therefore, in this embodiment, electrodes 84, 85 and conductive film 86 are stacked together such that at least the sides 84b, 85b, 86b extending along the length direction are in a substantially coplanar plane.

[0245] In this way, the lamination 81 can be positioned in the flow path width direction Y simply by placing the side surfaces 84b, 85b, and 86b of each component extending along the length direction in the same plane, thus making it easier to position the lamination 81 in the flow path width direction Y.

[0246] Furthermore, it can suppress the misalignment in the Y direction of the flow path width, which has a significant impact on the ability to generate ozone (electrolysis products), thereby making the concentration of ozone (electrolysis products) in ozone water (electrolyte) more stable.

[0247] In addition, the electrode housing 20 is provided with an inlet guide portion 353, which extends along the stacking direction Z of the laminate 81 and is used to guide the electrolysis portion 80 to be inserted into the recess 34.

[0248] Thus, if the guide section 353 is provided, the position of each component constituting the laminate 81 is prevented from deviating during the assembly process when assembling the ozone water generating device (electrolyte generating device) 1, and the ozone water generating device (electrolyte generating device) 1 can be assembled more easily.

[0249] Furthermore, in the electrolytic liquid generating apparatus disclosed in Patent Document 1, as described above, since the electrolytic electrode device is formed solely by stacking an anode, a conductive film, and a cathode, gaps may occur between the stacked components. Moreover, when gaps appear between the components, the current conduction on the stacked surfaces of the laminate may become uneven. Thus, when the current conduction on the stacked surfaces of the laminate becomes uneven, the ozone (electrolysis product) generation efficiency may decrease, and the lifespan of the electrodes and the conductive film may be shortened.

[0250] Therefore, in this embodiment, an elastic body 90 is disposed inside the outer casing 10, which contacts one side of the laminate 81 of the electrolysis unit 80 in the lamination direction Z.

[0251] In this way, by providing the elastic body 90, it is possible to press one side of the electrolytic unit 80 in the stacking direction Z, and the elastic body 90 can absorb dimensional deviations in the stacking direction Z of the electrolytic unit 80. As a result, it is easier to position the electrolytic unit 80 in the stacking direction Z.

[0252] Furthermore, by providing the elastomer 90, a certain pressure can be applied to the entire electrolysis section 80, thereby further improving the sealing of each component. In this way, improving the sealing of each component can further improve the ozone (electrolysis product) generation efficiency and extend the lifespan of the electrodes and conductive film.

[0253] Furthermore, by using the elastomer 90 to improve the tightness of each component, the structure can be simplified, and the electrolytic section 80, in which the tightness of each component is improved, can be assembled more easily.

[0254] Furthermore, in this embodiment, the elastomer 90 is disposed between the electrolysis section 80 and the electrode shell 20.

[0255] In this way, when assembling the ozone water generating device (electrolyte generating device) 1, the elastomer 90 can be disposed inside the electrode housing 20 (in the recess 34), thus making it easier to assemble the ozone water generating device (electrolyte generating device) 1.

[0256] Furthermore, a welding portion 17 is formed at the periphery 333 of the opening 332a of the outer casing 10, which welds the electrode casing 20 and the electrode casing cover 60 together.

[0257] In this way, it is easier to install the electrode housing cover 60 onto the electrode housing 20, and it is easier to assemble the ozone water generating device (electrolyte generating device) 1.

[0258] Furthermore, in this embodiment, the electrodes include an anode 84 and a cathode 85. Moreover, the electrolysis unit 80 includes an anode-side power supply shaft 83b and a cathode-side power supply shaft 85f. The anode-side power supply shaft 83b is electrically connected to the anode 84 and is used to apply voltage to the anode 84. The cathode-side power supply shaft 85f is electrically connected to the cathode 85 and is used to apply voltage to the cathode 85.

[0259] Furthermore, the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f extend along the stacking direction Z.

[0260] In this way, the size and position of each component constituting the electrolysis unit 80 can be uniquely determined, and misalignment of the components during stacking can be suppressed. As a result, the assembly of the electrolysis unit 80 and the alignment of the components can be made easier, and ozone (electrolysis product) can be generated more stably.

[0261] Furthermore, in this embodiment, the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are extended toward the side opposite to the side where the flow path 11 is located.

[0262] In this way, the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are not positioned within the flow path 11, thus preventing the water (liquid) flowing within the flow path 11 from becoming stagnant.

[0263] Furthermore, in this embodiment, the anode-side power supply shaft 83b, which is either the anode-side power supply shaft 83b or the cathode-side power supply shaft 85f, is provided on the inlet 11a side of the electrolysis section 80. The cathode-side power supply shaft 85f, which is the other, is provided on the outlet 11b side of the electrolysis section 80.

[0264] This allows for the suppression of the enlargement of the ozone water generating device (electrolyte generating device) 1, and also maximizes the distance between the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f. As a result, it also suppresses the enlargement of the ozone water generating device (electrolyte generating device) 1 and prevents short circuits between the anode 84 and the cathode 85.

[0265] Furthermore, when viewed from the stacking direction Z, the electrolysis section 80 is formed as a roughly rectangular shape with the liquid flow direction X being the length direction, and the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f are provided at the diagonal portion 80e of the electrolysis section 80.

[0266] In this way, the directionality of the inlet and outlet sides of the electrode shell 20 can be eliminated, and the ozone water generating device (electrolytic liquid generating device) 1 can be assembled more efficiently.

[0267] At this time, at least one of the power supply shafts, namely the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f, is set independently of the electrodes 84 and 85.

[0268] This eliminates the need for welding the anode-side power supply shaft 83b and the cathode-side power supply shaft 85f. As a result, the components constituting the electrolysis unit 80 can be manufactured more easily, leading to cost reduction.

[0269] Furthermore, at least one of the components constituting the electrolysis section 80 (power supply 83 and cathode 85) can be formed into a shape that is bent in the stacking direction Z.

[0270] In this way, when assembling the ozone water generating device (electrolysis liquid generating device) 1, a stable pushing pressure can be generated on electrodes 84 and 85. As a result, the energized area of ​​the electrolysis section 80 can be more stably ensured, and the ozone (electrolysis product) generation capacity can be more stable. In addition, since it is no longer necessary to use screws or the like to fasten the electrolysis section 80 disposed in the electrode housing 20, the occurrence of assembly deviations can be suppressed, and the ozone (electrolysis product) generation capacity can be more stable. Moreover, since the number of components can be reduced, costs can be reduced.

[0271] Furthermore, Patent Document 1 discloses an electrolytic liquid generating device, which is provided with a baffle structure for turbulentizing tap water passing through the electrolytic electrode device. By setting such a baffle structure, tap water can be electrolyzed more efficiently.

[0272] However, simply generating turbulence is insufficient to obtain the hydraulic force required to forcibly strip the tiny bubbles of electrolysis products from the electrode interface. Sometimes, the generated electrolysis products fail to detach from the electrode interface and grow into larger bubbles.

[0273] Thus, when the bubbles generated by electrolysis grow significantly, even if the bubbles detach from the electrode interface, they may not dissolve in the liquid and may float in the liquid, potentially reducing the concentration of the electrolysis products in the liquid.

[0274] Therefore, in this embodiment, the groove 82 is formed such that the depth D1 is smaller than at least one of the opening width L1 in the liquid flow direction X of the groove 82 and the height H1 in the stacking direction Z of the flow path 11.

[0275] 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 tank 82, or if the opening width L1 in the liquid flow direction X of the tank 82 is greater than the depth D1 of the tank 82, the water flow at the site where ozone (electrolysis product) is generated (near interface 87) is accelerated, and thus the generated ozone (electrolysis product) can be extracted in the form of ultra-microbubbles. As a result, the situation where ozone (electrolysis product) is not dissolved in the liquid and floats in the liquid can be suppressed, and the dissolved concentration of ozone (electrolysis product) in the water (liquid) can be further increased.

[0276] Furthermore, it can suppress the stagnation of water (liquid) flowing in the flow path 11 in the tank section 82, and thus, from this perspective, it can further increase the dissolved concentration of ozone (electrolysis product) in the water (liquid).

[0277] In addition, Patent Document 1 disclosed an electrolytic liquid generating device, which has an anode, a conductive film and a cathode stacked together, and water passage holes provided in the conductive film and the cathode, and the water passage (flow path) is set as a path. By forming this structure, the electrolytic liquid generating device is miniaturized and reduced in cost.

[0278] However, Patent Document 1 does not specify any limit on the height of the flow path. Therefore, the flow rate of the liquid flowing within the flow path can sometimes decrease significantly depending on the structure of the flow path. Thus, with the construction described in Patent Document 1, the dissolved concentration of the electrolysis products in the liquid may decrease.

[0279] Therefore, in this embodiment, the flow path 11 is formed such that its height in the stacking direction Z is a height H1 that is smaller than the flow path width W1.

[0280] Thus, if the height of the flow path 11 in the stacking direction Z is smaller than the width of the flow path W1, the surface flow velocity near the interfaces 87 and 88 can be increased. Therefore, the generated ozone (electrolysis product) can dissolve in water (liquid) more quickly, and the concentration of ozone (electrolysis product) in water (liquid) can be further increased.

[0281] Furthermore, in the structure of Patent Document 1 mentioned above, as described above, only the anode, conductive film, and cathode are stacked, so the contact between the anode and the conductive film and the contact between the conductive film and the cathode may become uneven.

[0282] Thus, when the contact between the anode and the conductive film, and between the conductive film and the cathode, becomes uneven, the concentration of dissolved products may become unstable, and the efficiency of product generation may decrease.

[0283] Therefore, in this embodiment, the protrusion 64 is brought into contact with the surface 80a of the electrolysis section 80 on the side of the flow path 11.

[0284] By bringing such a protrusion 64 into contact with the surface 80a of the electrolysis section 80 on the side of the flow path 11, the protrusion 64 can press the electrolysis section 80, thus making the contact between the conductive film 86 and the electrodes 84 and 85 more uniform. As a result, the current density of the current flowing in the electrolysis section 80 can be made more uniform, further improving the ozone (electrolysis product) generation efficiency. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0285] Furthermore, in this embodiment, a protrusion 64 is formed in the central part of the flow path 11 in the flow path width direction Y.

[0286] In this way, by pressing the center of the electrolysis section 80 with the protrusion 64, the conductive film 86 can be made to contact the electrodes 84 and 85 more evenly. As a result, the current density of the current flowing in the electrolysis section 80 can be made more uniform, and the generation efficiency of ozone (electrolysis product) can be further improved. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0287] Furthermore, in this embodiment, multiple protrusions 64 are formed in a manner arranged along the liquid flow direction X.

[0288] In this way, if the protrusion 64 presses against the electrolysis section 80 along the liquid flow direction X, the conductive film 86 can be made to contact the electrodes 84 and 85 more uniformly. As a result, the current density of the current flowing in the electrolysis section 80 can be made more uniform, and the generation efficiency of ozone (electrolysis product) can be further improved. In addition, the dissolved concentration of ozone (electrolysis product) in water (liquid) can be made more stable.

[0289] Furthermore, in this embodiment, the protrusion 64 is formed such that, when viewed from the stacking direction Z, at least the contact portion 64a that contacts the electrolysis section 80 does not overlap with the groove portion 82.

[0290] In this way, the protrusion 64 is not placed on the tank 82, thus preventing the flow of water (liquid) in the tank 82 from being obstructed by the protrusion 64. As a result, the retention of air bubbles near the interfaces 87 and 88 of the tank 82 is suppressed, and the dissolved concentration of ozone (electrolysis product) in the water (liquid) can be further increased.

[0291] Furthermore, in this embodiment, multiple grooves 82 are formed in a manner arranged along the liquid flow direction X. Also, the liquid flow direction width L2 of the contact portion 64a of the protrusion 64 that at least contacts the electrolysis unit 80 is smaller than the liquid flow direction width L3 between adjacent grooves 82 of the electrolysis unit 80.

[0292] In this way, even if the position of the protrusion 64 is slightly deviated during the assembly of the ozone water generating device (electrolysis liquid generating device) 1, the protrusion 64 can be disposed of on the tank 82 without being placed on it. Therefore, the retention of air bubbles near the interfaces 87 and 88 of the tank 82 can be suppressed more reliably, and the dissolved concentration of ozone (electrolysis product) in the water (liquid) can be further increased.

[0293] Furthermore, in this embodiment, the protrusion 64 is formed such that, when viewed from the stacking direction Z, the outline shape 64b becomes a polygon with rounded corners 64d formed at the vertex portion 64c.

[0294] In this way, by forming a rounded corner 64d at the apex portion 64c of the outline shape 64b of the protrusion 64, the flow of liquid near the protrusion 64 can be made smoother, thus more reliably suppressing the occurrence of bubble retention and further increasing the dissolved concentration of ozone (electrolysis product) in water (liquid).

[0295] The preferred embodiments of this disclosure have been described above, but this disclosure is not limited to the above embodiments and various modifications are possible.

[0296] For example, in the above embodiments, an ozone water generating apparatus is illustrated, which generates ozone and produces ozone water by dissolving the ozone in water. However, the generated substance is not limited to ozone; for example, hypochlorous acid can also be generated for sterilization, water treatment, etc. Furthermore, the apparatus can also be configured to generate oxygen water, hydrogen water, chlorine-containing water, and hydrogen peroxide water, etc.

[0297] Furthermore, the anode 84 can be formed from conductive silicon, conductive diamond, titanium, platinum, lead oxide, tantalum oxide, etc., and any material can be used as long as it is a conductive and durable electrode capable of generating electrolyzed water. Moreover, when the anode 84 is a diamond electrode, the manufacturing method is not limited to a film-forming method. Additionally, materials other than metals can be used to form the substrate.

[0298] In addition, the cathode 85 can be any electrode that has conductivity and durability, and can be made of materials such as platinum, titanium, stainless steel, or conductive silicon.

[0299] Furthermore, the specifications (shape, size, layout, etc.) of the casing, electrolysis unit, and other minor parts can also be appropriately modified.

[0300] Industrial availability

[0301] As described above, the electrolyzed liquid generating apparatus of this disclosure can increase the concentration of electrolyzed products in the liquid after electrolysis treatment, and therefore can also be applied to water treatment equipment such as water purification devices, washing machines, dishwashing machines, warm water washing toilets, refrigerators, hot water supply devices, sterilization devices, medical equipment, air conditioning equipment, or kitchen equipment.

[0302] Explanation of reference numerals in the attached figures

[0303] 1. Ozone water generating device (electrolysis liquid generating device); 10. Outer shell (electrode shell 20 and electrode shell cover 60); 11. Flow path; 11a. Inlet; 11b. Outlet; 17. Welded section; 20. Electrode shell; 34. Recess; 60. Electrode shell cover; 71a. Water path (external flow path); 72a. Downstream water path (external flow path); 80. Electrolysis section; 80a. Surface; 80e. Diagonal section; 81. Laminated body; 82. Tank; 82a. Opening; 83b. Anode-side power supply shaft; 84. Anode (electrode); 85. Cathode (electrode); 85f. Cathode-side power supply shaft; 86. Conductive film; 8 7. Interface between anode 84 and conductive film 86; 88. Interface between cathode 85 and conductive film 86; 90. Elastomer; 332a. Opening; 333. Peripheral portion; 353. Inlet guide portion; D1. Depth of the tank; H1. Height in the stacking direction of the flow path; L1. Opening width in the liquid flow direction of the tank; L2. Width in the liquid flow direction of the contact portion of the protrusion; L3. Width in the liquid flow direction between the tanks of the electrolysis section; W1. Flow path width; X. Liquid flow direction (length direction: front-to-back direction); Y. Width direction (flow path width direction); Z. Stacking direction (up-down direction).

Claims

1. An electrolytic liquid generating device, characterized in that, The electrolytic liquid generating device includes: An electrolysis unit having a laminated body for electrolyzing a liquid, the laminated body being formed by stacking conductive films between adjacent electrodes; and The outer casing, wherein the electrolysis unit is disposed inside the outer casing. The outer shell has a flow path whose liquid flow direction intersects with the stacking direction of the laminate. The flow path has an inlet and an outlet. The inlet is connected to an external flow path on the upstream side to allow liquid supplied to the electrolysis unit to flow in, and the outlet is connected to an external flow path on the downstream side to allow the electrolyzed liquid generated in the electrolysis unit to flow out. A groove is formed in the electrolysis section, which opens to the flow path, and at least a portion of the interface between the conductive film and the electrode is exposed in the groove. The outer casing includes an electrode shell and an electrode shell cover. The electrode shell has a recess with an opening through which the electrolytic unit can pass, and the electrolytic unit is housed in the recess. The electrode shell cover covers the opening of the electrode shell.

2. The electrolytic liquid generating apparatus according to claim 1, characterized in that, The flow path is formed between the electrolysis section and the electrode housing.

3. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, The electrode shell is provided with an inlet guide portion that extends along the stacking direction of the laminate and is used to guide the electrolysis section to be inserted into the recess.

4. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, An elastomer is disposed inside the housing and contacts one side of the laminated body of the electrolysis unit in the lamination direction.

5. The electrolytic liquid generating apparatus according to claim 4, characterized in that, The elastomer is disposed between the electrolysis section and the electrode shell.

6. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, A fusion portion is formed at the periphery of the opening of the outer casing to weld the electrode shell and the electrode shell cover together.

7. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, The electrode includes an anode and a cathode. The electrolysis unit includes an anode-side power supply shaft and a cathode-side power supply shaft. The anode-side power supply shaft is electrically connected to the anode and is used to apply voltage to the anode. The cathode-side power supply shaft is electrically connected to the cathode and is used to apply voltage to the cathode. The anode-side power supply shaft and the cathode-side power supply shaft extend along the stacking direction.

8. The electrolytic liquid generating apparatus according to claim 7, characterized in that, The anode-side power supply shaft and the cathode-side power supply shaft extend toward the side opposite to the side where the flow path is located.

9. The electrolytic liquid generating apparatus according to claim 7, characterized in that, One of the anode-side power supply shaft and the cathode-side power supply shaft is located at the inlet side of the electrolysis unit, and the other is located at the outlet side of the electrolysis unit.

10. The electrolytic liquid generating apparatus according to claim 7, characterized in that, At least one of the anode-side power supply shaft and the cathode-side power supply shaft is independently disposed from the electrode.

11. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, The flow path is formed such that its height in the stacking direction is smaller than the width of the flow path.

12. The electrolytic liquid generating apparatus according to claim 1 or 2, characterized in that, The protrusion contacts the surface of the electrolysis section on the flow path side.

13. The electrolytic liquid generating apparatus according to claim 12, characterized in that, The protrusion is formed at the center of the flow path in the width direction.

14. The electrolytic liquid generating apparatus according to claim 12, characterized in that, The protrusions are formed in multiple ways arranged along the direction of liquid flow.

15. The electrolytic liquid generating apparatus according to claim 12, characterized in that, The protrusion is formed such that, when viewed from the stacking direction, at least the contact portion that contacts the electrolysis section does not overlap with the tank section.

16. The electrolytic liquid generating apparatus according to claim 12, characterized in that, The grooves are formed in multiple ways arranged along the direction of liquid flow. The width of the liquid flow direction of at least the contact portion of the protrusion that contacts the electrolysis section is smaller than the width of the liquid flow direction between adjacent tank portions of the electrolysis section.

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