Functional water generating device and cleaning system

Abstract

This invention provides a functional water generator and a cleaning system that facilitate replacement work. [Solution] The functional water generating apparatus according to the embodiment comprises an electrode plate and an electrolytic case that holds the electrode plate and has a water passage through which water flows. The electrolytic case comprises a first electrolytic case and a second electrolytic case that is assembled to the first electrolytic case in a manner that allows it to be disassembled.

Description

Technical Field

[0001] The present invention relates to a functional water generator and a cleaning system.

Background Art

[0002] Conventionally, there has been known a functional water generator that generates ozone water by providing an anode electrode and a cathode electrode in pressure contact with a solid electrolyte membrane in a casing (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a functional water generator, since functional water such as ozone water is generated, consumables such as a solid electrolyte membrane deteriorate. Therefore, it is desirable to make the consumables replaceable. However, in the above technology, the replacement work of the consumables is not considered. That is, there is room for improvement in the configuration of the functional water generator for facilitating the replacement work of the consumables.

[0005] The present invention has been made in view of the above, and an object thereof is to provide a functional water generator and a cleaning system that facilitate replacement work.

Means for Solving the Problems

[0006] The functional water generator according to one aspect of the embodiment includes an electrode plate and an electrolysis case that sandwiches the electrode plate and forms a water passage through which water flows. The electrolysis case includes a first electrolysis case and a second electrolysis case that is assembled to the first electrolysis case so as to be decomposable.

[0007] This allows the electrode plates of the functional water generator to be replaced by disassembling the electrolytic case. Therefore, operators can easily perform tasks such as replacing the electrode plates. In addition, by clamping the electrode plates with the electrolytic case, the functional water generator can increase the degree of contact with the electrode plates and improve the efficiency of functional substance generation.

[0008] In a functional water generating apparatus according to one embodiment, the first electrolytic case and the second electrolytic case are configured to be divided in the direction of the thickness of the electrode plate.

[0009] As a result, the functional water generator's electrolytic case is disassembled, exposing the electrode plates. Therefore, an operator can easily replace the electrode plates 3 by, for example, removing the second electrolytic case from the first electrolytic case.

[0010] In a functional water generating device according to one embodiment, the electrode plate is configured such that the length in the water flow direction in the water channel is longer than the length in the direction perpendicular to the water flow direction and the thickness direction of the electrode plate.

[0011] This allows the functional water generator to produce a larger amount of functional substances.

[0012] In one embodiment of the functional water generating apparatus, the first electrolytic case has a first recess formed in the thickness direction of the electrode plate to match the shape of the first electrode plate and to hold the first electrode plate. The second electrolytic case has a second recess formed in the thickness direction of the electrode plate to match the shape of the second electrode plate and to hold the second electrode plate.

[0013] This makes it easy to determine the mounting position of the electrode plates when attaching them to the first electrolytic case, for example. As a result, the functional water generator can be easily assembled. Furthermore, since the electrode plates are held in the first electrolytic case, the functional water generator 1 can prevent the electrode plates from coming off the first electrolytic case during assembly or when replacing the electrode plates.

[0014] In a functional water generating device according to one embodiment, the first recess is formed such that the surface of the first electrode plate on the second electrode plate side and the surrounding surface of the first recess are aligned. The second recess is formed such that the surface of the first electrode plate on the first electrode plate side and the surrounding surface of the second recess are aligned.

[0015] This allows the functional water generator to suppress wobbling of the electrode plates in the thickness direction. As a result, the functional water generator can increase the degree of adhesion to the electrode plates and improve the efficiency of functional substance generation.

[0016] In a functional water generating device according to one embodiment, the first electrolytic case and the second electrolytic case are fixed together by screws at locations adjacent to the four corners of the electrode plate.

[0017] As a result, the functional water generator can stably clamp the electrode plate. In other words, the functional water generator can suppress variations in the clamping force in the planar direction of the electrode plate (the direction perpendicular to the plate thickness direction). Therefore, the functional water generator can clamp the electrode plate 3 with an overall suitable clamping force. Consequently, the functional water generator can improve the efficiency of functional substance generation and suppress the deterioration of the electrode plate.

[0018] A functional water generating device according to one embodiment includes a first terminal electrically connected to the end of a first electrode plate and a second terminal electrically connected to the end of a second electrode plate.

[0019] This allows the functional water generator to reduce the space required for the first and second terminals, and to efficiently arrange the first and second terminals.

[0020] A functional water generating device according to one embodiment includes a first holding part that holds the first terminal so that the first terminal contacts the first electrode plate, and a second holding part that holds the second terminal so that the second terminal contacts the second electrode plate. The first terminal and the second terminal are contact springs.

[0021] Thereby, the functional water generator can surely bring the first terminal into contact with the first electrode plate, for example, by the biasing force of the spring. Therefore, the functional water generator can reduce the contact resistance between the first terminal and the first electrode plate, for example. Thus, the functional water generator can improve the generation efficiency of the functional substance.

[0022] In the functional water generator according to one aspect of the embodiment, the first electrode plate is provided such that the end portion where the first terminal is electrically connected protrudes toward the first terminal side more than the second electrode plate. The second electrode plate is provided such that the end portion where the second terminal is electrically connected protrudes toward the second terminal side more than the first electrode plate.

[0023] Thereby, the functional water generator can secure a space for connecting the first terminal and the first electrode plate, for example, and can bring the first terminal into contact only with the first electrode plate. Therefore, the functional water generator can prevent the occurrence of a short circuit.

[0024] In the functional water generator according to one aspect of the embodiment, the electrolysis case includes a first accommodating portion that accommodates a part of the first terminal and restricts movement of the first terminal in a direction intersecting the extending direction of the first terminal, and a second accommodating portion that accommodates a part of the second terminal and restricts movement of the second terminal in a direction intersecting the extending direction of the second terminal.

[0025] Thereby, the functional water generator can suppress, for example, the first terminal from bending in a direction intersecting the current-carrying direction, and can prevent the occurrence of poor contact between the first terminal and the first electrode plate.

[0026] The functional water generator according to one aspect of the embodiment includes an intermediate film provided between the electrodes.

[0027] Thereby, the functional water generator can increase the adhesion between the intermediate film and the electrode plate by sandwiching the intermediate film and the electrode plate with the electrolysis case, and can improve the generation efficiency of the functional substance.

[0028] In a functional water generating device according to one embodiment, the length of the interlayer membrane in the water flow direction is longer than that of the electrodes in the water flow direction.

[0029] As a result, the functional water generating device can promote the generation of functional substances at both the upstream and downstream ends of the electrode plates, thereby improving the efficiency of functional substance generation.

[0030] In a functional water generating apparatus according to one embodiment, one of the first electrolytic case or the second electrolytic case is provided with a plurality of protrusions that project toward the other of the first electrolytic case or the second electrolytic case and hold an interlayer film.

[0031] This makes it easy to determine the mounting position of the interlayer when attaching it to, for example, the first electrolytic case. As a result, the functional water generator can be easily assembled. Furthermore, since the interlayer is held in place by, for example, the first electrolytic case, the functional water generator can prevent the interlayer from coming off the first electrolytic case during assembly or when replacing the interlayer.

[0032] In a functional water generating device according to one embodiment, the first electrolytic case, or the other of the second electrolytic case, is provided with a plurality of recesses into which a protruding portion is inserted.

[0033] This prevents misalignment between the first electrolytic case and the second electrolytic case in a direction perpendicular to the plate thickness direction. Therefore, the functional water generator can suppress misalignment between the first and second electrolytic cases during assembly, thereby suppressing positional misalignment of the electrode plates and interlayers.

[0034] A functional water generating device according to one embodiment includes an outer case that houses and holds an electrolytic case.

[0035] This allows the functional water generator to protect the electrolytic case with an outer case, thereby improving the durability of the electrolytic case.

[0036] In a functional water generating device according to one embodiment, the outer case comprises a first outer case and a second outer case that is detachably assembled to the first outer case. The first outer case and the second outer case are configured to be separated in the direction of water flow.

[0037] This allows the functional water generator to have the division direction of the electrolytic case (water flow direction) and the division direction of the outer case (plate thickness direction) be different. Therefore, the functional water generator can stably hold the electrolytic case with the outer case.

[0038] A functional water generating device according to one embodiment includes a fixing part that extends along the water flow direction on the outside of the outer case and fixes a first outer case and a second outer case, a first terminal electrically connected to the end of the first electrode plate, a second terminal electrically connected to the end of the second electrode plate, a first holding part that holds the first terminal so that the first terminal abuts against the first electrode plate, and a second holding part that holds the second terminal so that the second terminal abuts against the second electrode plate. The fixing part includes a first fixing part that holds the first holding part and a second fixing part that holds the second holding part.

[0039] As a result, the functional water generator can fix the first outer case and the second outer case with the fixing part, while the fixing part also holds the first retaining part and the second retaining part. Therefore, the functional water generator can have fewer parts and thus reduce costs.

[0040] In a functional water generating device according to one embodiment, the outer case is configured to allow water to enter between it and the electrolytic case.

[0041] As a result, the functional water generator can hold the electrolytic case in place with water that has seeped between the outer case and the electrolytic case. For example, even if the screws fixing the first and second electrolytic cases to the functional water generator become loose, the water pressure from the water seeping between the outer case and the electrolytic case can still hold the first and second electrolytic cases together. Therefore, the functional water generator can ensure that the electrode plates and the interlayer film are in close contact.

[0042] In a functional water generating apparatus according to one embodiment, the water passage on the side of one electrode plate that generates the functional substance has a smaller passage area in a cross-section perpendicular to the water flow direction than the water passage on the side of the other electrode plate.

[0043] This allows the functional water generator to increase the water flow velocity on the electrode plate side where the functional substance is generated, thereby suppressing the adhesion of deposits to the electrode plate where the functional substance is generated.

[0044] In a functional water generating device according to one embodiment, the electrode plate is positioned such that, when viewed from the direction of water flow, it includes the center of a virtual circle of the water passage. The water passage includes a water passage wall formed at a position opposite the electrode plate. The water passage wall is formed such that, when viewed from the direction of water flow, the length between the water passage wall and the electrode plate opposite it is less than or equal to half the radius of the virtual circle.

[0045] As a result, the functional water generator can increase the water flow velocity at the point where it faces the electrode plate, thereby suppressing the adhesion of deposits to the electrode plate. Therefore, the functional water generator can suppress the inhibition of functional substance generation and improve the efficiency of functional substance generation.

[0046] In a functional water generating device according to one embodiment, the water passage includes a water passage wall formed at a position opposite the electrode plate. The water passage wall is a flat surface.

[0047] This allows the functional water generator to stabilize the water flow in the area opposite the electrode plate while increasing the flow velocity. As a result, the functional water generator can suppress the adhesion of deposits to the electrode plate.

[0048] In a functional water generating device according to one embodiment, the water passage is formed upstream of the water passage wall in the water passage direction and includes an upstream inclined wall connected to the water passage wall.

[0049] As a result, the functional water generator can suppress abrupt changes in the flow path shape in the water channel. Therefore, the functional water generator can suppress turbulence in the water flow upstream of the electrode plate.

[0050] In a functional water generating device according to one embodiment, the water passage is formed downstream of the water passage wall in the water passage direction and includes a downstream inclined wall connected to the water passage wall.

[0051] As a result, the functional water generator can suppress abrupt changes in the flow path shape in the water channel. Therefore, the functional water generator can suppress turbulence in the water flow downstream of the electrode plate, thereby suppressing the accumulation of functional substances.

[0052] In a functional water generating device according to one embodiment, the inclination angle of the upstream inclined wall is smaller than the inclination angle of the downstream inclined wall.

[0053] As a result, the functional water generator can suppress turbulence in the water flow at the point opposite the electrode plate, and can quickly mix the functional water generated at one electrode plate with the water flowing on the other electrode plate side. Therefore, the functional water generator can suppress exposure of components downstream of the electrode plates to water with a high concentration of functional substances, and can suppress deterioration of components downstream of the electrode plates.

[0054] In a functional water generating device according to one embodiment, the connection point between the upstream inclined wall and the water-conducting wall is downstream of the upstream end of the electrode plate in the water-conducting direction.

[0055] As a result, the functional water generator can prevent water flowing along the upstream inclined wall from colliding with the upstream end of the electrode plate. Therefore, the functional water generator can suppress turbulence in the water flow upstream of the electrode plate.

[0056] In a functional water generating device according to one embodiment, the connection point between the downstream inclined wall and the water-conducting wall is located downstream of the downstream end of the electrode plate in the water-conducting direction.

[0057] As a result, the functional water generator can increase the water flow velocity, for example, near the downstream electrode plate. Therefore, the functional water generator can suppress the adhesion of deposits on the downstream electrode plate.

[0058] A cleaning system according to one embodiment comprises a functional water generator, a supply pipe connected to a water passage on the electrode plate side of the functional water generator that generates functional water and supplies functional water to the object to be cleaned, a discharge pipe through which wastewater discharged from the object to be cleaned flows, and a bypass pipe connected to a water passage on the electrode side of the functional water generator that is different from the electrode that generates functional water, bypassing the object to be cleaned and connecting to the discharge pipe.

[0059] This allows the cleaning system to supply functional water with a high concentration of functional substances to the object being cleaned. Furthermore, the cleaning system can dilute the wastewater discharged from the object being cleaned with water supplied through a bypass pipe.

[0060] In a cleaning system according to one embodiment, the functional water generating device generates ozonated water as functional water.

[0061] This allows the cleaning system to supply ozonated water with a high ozone concentration to the object being cleaned, thereby improving the disinfection effect of the object. Furthermore, the cleaning system can dilute the wastewater discharged from the object being cleaned with water supplied through a bypass pipe. Therefore, the cleaning system can suppress deterioration of discharge pipes and other components.

[0062] A cleaning system according to one embodiment comprises a first removal device having a reverse osmosis membrane and provided upstream of a functional water generator, and a second removal device having a chlorine adsorbent and provided upstream of the first removal device. The functional water generator is supplied with water that has passed through the second removal device and the first removal device.

[0063] As a result, the cleaning system can suppress a decrease in the efficiency of functional substance generation in the functional water generator. Furthermore, the cleaning system can suppress the deterioration of the functional water generator and the first removal device.

[0064] A cleaning system according to one embodiment includes a removal device having an ion exchange resin material, which is provided upstream of the functional water generator. The functional water generator is supplied with water that has passed through the removal device.

[0065] As a result, the cleaning system can suppress a decrease in the efficiency of functional substance generation in the functional water generator. Furthermore, the cleaning system can suppress the deterioration of the functional water generator. [Effects of the Invention]

[0066] According to one embodiment, the replacement process can be made easier. [Brief explanation of the drawing]

[0067] [Figure 1] Figure 1 is a front view of the functional water generator. [Figure 2] Figure 2 is a rear view of the functional water generator. [Figure 3]Figure 3 is a left side view of the functional water generator. [Figure 4] Figure 4 is a right side view of the functional water generator. [Figure 5] Figure 5 is a plan view of the functional water generator. [Figure 6] Figure 6 is a bottom view of the functional water generator. [Figure 7] Figure 7 is an exploded view of a part of the functional water generator. [Figure 8] Figure 8 is an exploded view of a part of the functional water generation unit. [Figure 9] Figure 9 is a cross-sectional view taken along line IX-IX in Figure 3. [Figure 10] Figure 10 shows the first electrolytic case as viewed from the second electrolytic case side. [Figure 11] Figure 11 is a schematic diagram illustrating the water passages in the functional water generation unit. [Figure 12] Figure 12 illustrates the electrode housing sections of the first electrolytic case and the second electrolytic case. [Figure 13] Figure 13 shows the second electrolytic case as viewed from the first electrolytic case side. [Figure 14] Figure 14 is a diagram showing the outer casing in Figure 9. [Figure 15] Figure 15 is a schematic diagram showing a cleaning system according to an embodiment. [Figure 16] Figure 16 is a schematic diagram showing the downstream configuration of the electrode plate in a functional water generating device. [Figure 17] Figure 17 is a schematic diagram showing a modified cleaning system. [Figure 18] Figure 18 is a schematic diagram showing a modified cleaning system. [Figure 19] Figure 19 is a front view of the functional water generation system. [Figure 20] Figure 20 is a rear view of the functional water generation system. [Figure 21] Figure 21 is a left side view of the functional water generation system. [Figure 22]Figure 22 is a right side view of the functional water generation system. [Figure 23] Figure 23 is a plan view of the functional water generation system. [Figure 24] Figure 24 is a bottom view of the functional water generation system. [Figure 25] Figure 25 is a schematic diagram illustrating a connecting pipe having an adjustment section. [Figure 26] Figure 26 is a block diagram illustrating the control system for a functional water generation system. [Figure 27] Figure 27 is a front view of a modified functional water generation system. [Figure 28] Figure 28 is a rear view of a modified functional water generation system. [Figure 29] Figure 29 is a left side view of a modified functional water generation system. [Figure 30] Figure 30 is a right side view of the functional water generation system according to a modified example. [Figure 31] Figure 31 is a plan view of a modified functional water generation system. [Figure 32] Figure 32 is a bottom view of the functional water generation system according to a modified example. [Figure 33] Figure 33 is a front view of a modified functional water generation system. [Figure 34] Figure 34 is a rear view of a modified functional water generation system. [Figure 35] Figure 35 is a left side view of a modified functional water generation system. [Figure 36] Figure 36 is a right side view of the functional water generation system according to a modified example. [Figure 37] Figure 37 is a plan view of a modified functional water generation system. [Figure 38] Figure 38 is a bottom view of the functional water generation system according to a modified example. [Modes for carrying out the invention]

[0068] The embodiments for implementing the functional water generating device, functional water generating system, and cleaning system according to the present application (hereinafter referred to as "embodiments") will be described in detail below with reference to the drawings. However, these embodiments do not limit the functional water generating device, functional water generating system, and cleaning system according to the present application.

[0069] (Functional water generator) Functional water generator 1 generates functional water from water, such as tap water. Functional water is, for example, ozonated water. Functional water may also be hydrogen water, alkaline ionized water, acidic water, hypochlorous acid water, and hypochlorous acid water. Below, a functional water generator 1 that generates ozonated water as functional water will be described as an example.

[0070] As shown in Figures 1 to 6, the functional water generator 1 comprises an outer case 60 and a fixing part 80. Figure 1 is a front view of the functional water generator 1. Figure 2 is a rear view of the functional water generator 1. Figure 3 is a left side view of the functional water generator 1. Figure 4 is a right side view of the functional water generator 1. Figure 5 is a top view of the functional water generator 1. Figure 6 is a bottom view of the functional water generator 1.

[0071] The outer case 60 comprises a first outer case 61 and a second outer case 62. The second outer case 62 is assembled to the first outer case 61. The fixing part 80 is fixed to the first outer case 61 and the second outer case 62 by screws 100. The fixing part 80 is fixed to the first outer case 61 and the second outer case 62 by screws 100, thereby fixing the second outer case 62 to the first outer case 61. Details of the outer case 60 and the fixing part 80 will be described later.

[0072] In the following, the direction in which the main body of water flows in the functional water generator 1 will be referred to as the water flow direction. The water supply source side will be referred to as "upstream," and the side on which functional water is supplied by the functional water generator 1 will be referred to as "downstream." Furthermore, a functional water generator 1 in which water flows from the second outer case 62 side to the first outer case 61 side will be described as an example. However, water may also flow from the first outer case 61 side to the second outer case 62 side.

[0073] The functional water generator 1 includes a functional water generation unit 2, as shown in Figure 7. Figure 7 is an exploded view of a part of the functional water generator 1. The majority of the functional water generation unit 2 is housed in an outer case 60.

[0074] As shown in Figure 8, the functional water generation unit 2 comprises an electrode plate 3, an interlayer membrane 4, a first terminal 5, a second terminal 6, a first electrode pin 7 (first holding part), a second electrode pin 8 (second holding part), and an electrolytic case 9. Figure 8 is an exploded view of a part of the functional water generation unit 2.

[0075] The electrode plate 3 includes an anode plate 10 (first electrode plate) and a cathode plate 11 (second electrode plate). The anode plate 10 and the cathode plate 11 are thin plates. The anode plate 10 and the cathode plate 11 are formed in a rectangular shape. The anode plate 10 and the cathode plate 11 sandwich an interlayer film 4. The anode plate 10 and the cathode plate 11 are arranged facing each other with the interlayer film 4 in between. In other words, the anode plate 10 and the cathode plate 11 are arranged to be stacked with the interlayer film 4 in between.

[0076] The anode plate 10 and the cathode plate 11 are arranged such that a portion of the anode plate 10 and the cathode plate 11 are offset in the direction of current flow. The direction of current flow is perpendicular to the direction of water flow and the direction of plate thickness. The direction of plate thickness is the thickness direction of the electrode plate 3 and the stacking direction of the anode plate 10 and the cathode plate 11. The anode plate 10 and the cathode plate 11 are arranged such that there are portions that face each other with the interlayer film 4 in between, and portions that do not face each other. Specifically, the anode plate 10 is arranged such that the end portion 10a that is electrically connected to the first terminal 5 (described in more detail later) protrudes toward the first terminal 5 side than the cathode plate 11. The cathode plate 11 is arranged such that the end portion 11a that is electrically connected to the second terminal 6 (described in more detail later later) protrudes toward the second terminal 6 side than the anode plate 10.

[0077] For example, the anode plate 10 is a diamond electrode formed by sintering diamond onto niobium. Multiple holes 10b are formed in the anode plate 10. For example, the cathode plate 11 is a platinum electrode formed by plating platinum onto titanium. The anode plate 10 and the cathode plate 11 are not limited to the electrodes described above.

[0078] When current is passed through electrode plate 3, ozone and oxygen are generated at anode plate 10, and hydrogen is generated at cathode plate 11.

[0079] The interlayer 4 is provided between the electrode plates 3. The interlayer 4 is formed in a rectangular shape. The length of the interlayer 4 in the water flow direction is longer than the length of the electrode plates 3 in the water flow direction. Specifically, the interlayer 4 is provided so as to protrude upstream of the electrode plates 3. Also, the interlayer 4 is provided so as to protrude downstream of the electrode plates 3. The interlayer 4 is a solid polymer membrane.

[0080] The first terminal 5 is electrically connected to the anode plate 10, as shown in Figure 9. Figure 9 is a cross-sectional view taken along line IX-IX in Figure 3. The first terminal 5 is electrically connected to the end 10a of the anode plate 10. Specifically, the first terminal 5 is electrically connected to the side of the anode plate 10. The first terminal 5 is a conductive spring. The first terminal 5 is a contact spring. Specifically, the first terminal 5 is a coil spring. One end of the first terminal 5 abuts against the end 10a of the anode plate 10. The other end of the first terminal 5 abuts against the first electrode pin 7. The first terminal 5 biases the anode plate 10 toward the second terminal 6.

[0081] The second terminal 6 is electrically connected to the cathode plate 11. The second terminal 6 is electrically connected to the end 11a of the cathode plate 11. Specifically, the second terminal 6 is electrically connected to the side of the cathode plate 11. The second terminal 6 is a conductive spring. The second terminal 6 is a contact spring. Specifically, the second terminal 6 is a coil spring. One end of the second terminal 6 abuts against the side of the cathode plate 11. The other end of the second terminal 6 abuts against the second electrode pin 8. The second terminal 6 biases the cathode plate 11 toward the first terminal 5.

[0082] At least one of the first terminal 5 and the second terminal 6 may be a clip. The first terminal 5 may be joined (for example, welded) to the anode plate 10. The second terminal 6 may be joined (for example, welded) to the cathode plate 11.

[0083] The first electrode pin 7 holds the first terminal 5 so that it contacts the anode plate 10. The first electrode pin 7 is made of a conductive material. Specifically, the first electrode pin 7 is a substantially cylindrical pin made of a conductive material. The first electrode pin 7 comprises a main body portion 7a and a stopper 7b.

[0084] The main body portion 7a is provided so as to extend in the direction of current flow. The stopper 7b is provided so as to protrude from the main body portion 7a along the radial direction of the main body portion 7a. The portion of the main body portion 7a on the anode plate 10 side of the stopper 7b is inserted into the first terminal 5. The stopper 7b abuts against the other end of the first terminal 5. On the side opposite to the side that the first terminal 5 abuts against, the stopper 7b abuts against the first fixing portion 81, which will be described later. The first electrode pin 7 is restricted from moving outward by the first fixing portion 81.

[0085] A threaded portion 7c is formed on the main body portion 7a that is outside the stopper 7b in the direction of current conduction. Specifically, the threaded portion 7c is formed at a location that is exposed to the outside from the first fixing portion 81. The power line 14 is electrically connected to the threaded portion 7c by a nut 13 or the like.

[0086] The second electrode pin 8 holds the second terminal 6 so that the second terminal 6 contacts the cathode plate 11. The second electrode pin 8 is made of a conductive material. Specifically, the second electrode pin 8 is a substantially cylindrical pin made of a conductive material. The second electrode pin 8 comprises a main body portion 8a and a stopper 8b.

[0087] The main body portion 8a is provided so as to extend in the direction of current flow. The stopper 8b is provided so as to protrude from the main body portion 8a along the radial direction of the main body portion 8a. The portion of the main body portion 8a on the cathode plate 11 side of the stopper 8b is inserted into the second terminal 6. The stopper 8b abuts against the other end of the second terminal 6. On the side opposite to the side that the second terminal 6 abuts against, the stopper 8b abuts against the second fixing portion 82, which will be described later. The second electrode pin 8 is restricted from moving outward by the second fixing portion 82.

[0088] A threaded portion 8c is formed on the main body portion 8a that is outside the stopper 8b in the direction of current conduction. Specifically, the threaded portion 8c is formed at a location that is exposed to the outside from the second fixing portion 82. The power line 17 is electrically connected to the threaded portion 8c by a nut 16 or the like.

[0089] As shown in Figure 8, the electrolytic case 9 houses the electrode plate 3 and the interlayer film 4. The electrolytic case 9 holds the electrode plate 3 and the interlayer film 4 between its walls. The electrolytic case 9 comprises a first electrolytic case 20 and a second electrolytic case 21. The electrolytic case 9 is configured to be divided in the direction of the thickness of the electrode plate 3. That is, the electrolytic case 9 is configured to be disassembled in the direction of the thickness of the electrode plate 3. The second electrolytic case 21 is assembled into the first electrolytic case 20.

[0090] As shown in Figure 10, a first water channel 22 is formed in the first electrolytic case 20. Figure 10 is a view of the first electrolytic case 20 from the side of the second electrolytic case 21 (see Figure 8). In Figure 10, the outline of the anode plate 10 is shown by a dashed line for explanatory purposes, and the outline of the cathode plate 11 is shown by a dashed line. Also in Figure 10, the outline of the interlayer film 4 is shown by a dashed line for explanatory purposes.

[0091] The first waterway 22 is formed by an inlet 23, an upstream inclined wall 24, a water-conducting wall 25, a downstream inclined wall 26, and an outlet 27. The first waterway 22 is formed in the order of the inlet 23, the upstream inclined wall 24, the water-conducting wall 25, the downstream inclined wall 26, and the outlet 27 from upstream to downstream.

[0092] The inlet section 23 is formed to have a semi-circular shape when viewed from the direction of water flow. The outlet section 27 is formed to have a semi-circular shape when viewed from the direction of water flow.

[0093] As shown in Figure 11, the upstream inclined wall section 24 includes an upstream inclined wall 24a that slopes in the plate thickness direction so as it approaches the anode plate 10 from the inlet section 23 towards the water-conducting wall section 25 side (downstream side). Figure 11 is a schematic diagram illustrating the water passage 55 in the functional water generation unit 2. The connection point between the upstream inclined wall section 24 and the water-conducting wall section 25 is downstream of the upstream end of the electrode plate 3, specifically the anode plate 10.

[0094] The water-conducting wall portion 25 is provided in a position where at least a part of it faces the anode plate 10. The water-conducting wall portion 25 includes a water-conducting wall 25a. The water-conducting wall 25a is formed to be substantially parallel to the anode plate 10. The water-conducting wall 25a is formed as a flat surface. The flat surface includes an uneven surface in a range that does not cause turbulence in the water flowing between the water-conducting wall 25a and the anode plate 10.

[0095] The downstream inclined wall section 26 includes a downstream inclined wall 26a that slopes in the plate thickness direction so as it moves from the outflow section 27 towards the water-conducting wall section 25 side (upstream side). The connection point between the downstream inclined wall section 26 and the water-conducting wall section 25 is downstream of the electrode plate 3, specifically the downstream end of the anode plate 10. The inclination angle a1 of the upstream inclined wall 24a of the upstream inclined wall section 24 is smaller than the inclination angle a2 of the downstream inclined wall 26a of the downstream inclined wall section 26.

[0096] As shown in Figure 10, the first electrolytic case 20 has an electrode housing portion 30 (first recess), a first terminal housing portion 31, and a second terminal housing portion 32.

[0097] The electrode housing portion 30 is formed to be recessed in the thickness direction to match the shape of the anode plate 10. The electrode housing portion 30 houses the anode plate 10. The electrode housing portion 30 is formed to straddle the first water channel 22. The electrode housing portion 30 is formed to hold the anode plate 10. It is desirable that the electrode housing portion 30 is formed so that the anode plate 10 is fitted into it.

[0098] As shown in Figure 12, the electrode housing portion 30 is formed such that the surface 10c of the anode plate 10 on the cathode plate 11 side and the surrounding surface 30a of the electrode housing portion 30 are aligned. That is, the electrode housing portion 30 is formed to be recessed in the thickness direction by the thickness of the anode plate 10. Figure 12 is a diagram illustrating the electrode housing portion 30 of the first electrolytic case 20 and the electrode housing portion 46 of the second electrolytic case 21.

[0099] As shown in Figure 10, the first terminal housing 31 is formed to extend in the direction of current flow. One end of the first terminal housing 31 is formed to open to the outside. The other end of the first terminal housing 31 is provided on the first water channel 22 side of the end 10a of the anode plate 10 to which the first terminal 5 (see Figure 9) is connected.

[0100] The second terminal housing 32 is formed to extend in the direction of current flow. One end of the second terminal housing 32 is provided to open to the outside. The other end of the second terminal housing 32 is provided on the first water channel 22 side of the end 11a of the cathode plate 11 to which the second terminal 6 (see Figure 9) is connected. An isolation wall 33 is formed between the other end of the second terminal housing 32 and the electrode housing 30. The isolation wall 33 separates the second terminal housing 32 from the electrode housing 30. The isolation wall 33 restricts the movement of the anode plate 10 toward the second terminal 6.

[0101] The first electrolytic case 20 is provided with a plurality of protrusions 34. The plurality of protrusions 34 project toward the second electrolytic case 21 (see Figure 8). The plurality of protrusions 34 are formed to hold the interlayer film 4. For example, the protrusions 34 are formed in a substantially L-shape to hold the four corners of the interlayer film 4. For example, four protrusions 34 are formed. The number of protrusions 34 is not limited to this. There may be two or three protrusions 34.

[0102] Multiple screw holes 35 are formed in the first electrolytic case 20. These screw holes 35 are formed adjacent to the four corners of the anode plate 10 (electrode plate 3). In other words, four screw holes 35 are formed.

[0103] As shown in Figure 13, a second water channel 38 is formed in the second electrolytic case 21. Figure 13 is a view of the second electrolytic case 21 from the side of the first electrolytic case 20 (see Figure 8). In Figure 13, for explanatory purposes, the outline of the anode plate 10 is shown with a dashed line, and the outline of the cathode plate 11 is shown with a dashed line.

[0104] The second waterway 38 is formed by an inlet 39, an upstream inclined wall 40, a water-conducting wall 41, a downstream inclined wall 42, and an outflow 43. The second waterway 38 is formed in the order of inlet 39, upstream inclined wall 40, water-conducting wall 41, downstream inclined wall 42, and outflow 43 from upstream to downstream.

[0105] The inlet section 39 is formed to have a semi-circular shape when viewed from the direction of water flow. The outlet section 43 is formed to have a semi-circular shape when viewed from the direction of water flow.

[0106] As shown in Figure 11, the upstream inclined wall section 40 includes an upstream inclined wall 40a that slopes in the plate thickness direction so as it moves from the inlet section 39 towards the water-conducting wall section 41 side (downstream side). The connection point between the upstream inclined wall section 40 and the water-conducting wall section 41 is downstream of the upstream end of the electrode plate 3, specifically the cathode plate 11.

[0107] The water-conducting wall portion 41 is provided in a position where at least a part of it faces the cathode plate 11. The water-conducting wall portion 41 includes a water-conducting wall 41a. The water-conducting wall 41a is formed to be substantially parallel to the cathode plate 11. The water-conducting wall 41a is formed as a flat surface. The flat surface includes an uneven surface in a range that does not cause turbulence in the water flowing between the water-conducting wall 41a and the cathode plate 11.

[0108] The downstream inclined wall section 42 includes a downstream inclined wall 42a that slopes in the plate thickness direction so as it moves from the outflow section 43 towards the water-conducting wall section 41 (upstream side), approaching the cathode plate 11. The connection point between the downstream inclined wall section 42 and the water-conducting wall section 41 is downstream of the electrode plate 3, specifically the downstream end of the cathode plate 11. The inclination angle b1 of the upstream inclined wall section 40a is smaller than the inclination angle b2 of the downstream inclined wall section 42a.

[0109] As shown in Figure 13, the second electrolytic case 21 has an electrode housing portion 46 (second recess), a first terminal housing portion 47, and a second terminal housing portion 48.

[0110] The electrode housing portion 46 is formed to be recessed in the thickness direction to match the shape of the cathode plate 11. The electrode housing portion 46 houses the cathode plate 11. The electrode housing portion 46 is formed to straddle the second water channel 38. It is desirable that the electrode housing portion 46 be formed so that the cathode plate 11 is fitted into it.

[0111] As shown in Figure 12, the electrode housing portion 46 is formed such that the surface 11b of the cathode plate 11 on the anode plate 10 side and the surrounding surface 46a of the electrode housing portion 46 are aligned. In other words, the electrode housing portion 46 is formed to be recessed in the thickness direction by the thickness of the cathode plate 11.

[0112] As shown in Figure 13, the first terminal housing 47 is formed to extend in the direction of current flow. One end of the first terminal housing 47 is provided to open to the outside. The other end of the first terminal housing 47 is provided on the side of the second water channel 38 that is closer to the end 10a of the anode plate 10 to which the first terminal 5 (see Figure 9) is connected. An isolation wall 52 is formed between the other end of the first terminal housing 47 and the electrode housing 46. The isolation wall 52 isolates the first terminal housing 47 from the electrode housing 46. The isolation wall 52 restricts the movement of the cathode plate 11 toward the first terminal 5.

[0113] The second terminal housing portion 48 is formed to extend in the direction of current flow. One end of the second terminal housing portion 48 is provided to open to the outside. The other end of the second terminal housing portion 48 is provided on the side of the first terminal 5 that is greater than the end 11a of the cathode plate 11 to which the second terminal 6 is connected.

[0114] Multiple recesses 49 are formed in the second electrolytic case 21. The protrusions 34 (see Figure 10) of the first electrolytic case 20 are inserted into the recesses 49. The multiple recesses 49 are provided in accordance with the multiple protrusions 34 of the first electrolytic case 20. The recesses 49 are formed, for example, in a roughly L-shape.

[0115] The second electrolytic case 21 may be provided with multiple protrusions. In this case, the first electrolytic case 20 will have multiple recesses.

[0116] Multiple screw holes 50 are formed in the second electrolytic case 21. These screw holes 50 are formed adjacent to the four corners of the electrode plate 3.

[0117] The first electrolytic case 20 and the second electrolytic case 21 are assembled and fixed in place by inserting screws 51 (see Figure 8) into the screw holes 50 and 35. In other words, the first electrolytic case 20 and the second electrolytic case 21 are fixed to the electrode plate 3 by multiple screws 51 at locations adjacent to the four corners.

[0118] When the first electrolytic case 20 and the second electrolytic case 21 are assembled, the first water passage 22 of the first electrolytic case 20 and the second water passage 38 of the second electrolytic case 21 form a water passage 55, as shown in Figure 11.

[0119] The inlet 23 of the first electrolytic case 20 and the inlet 39 of the second electrolytic case 21 form a circular flow path when viewed from the upstream side. The outlet 27 of the first electrolytic case 20 and the outlet 43 of the second electrolytic case 21 form a circular flow path when viewed from the downstream side. The diameters of the flow paths formed by the inlet 23 and 39 and the diameters of the flow paths formed by the outlet 27 and 43 may be the same or different.

[0120] As shown in Figure 5, the water-conducting wall 25a of the first electrolytic case 20 is formed such that, when viewed from the upstream side, the distance L1 between the water-conducting wall 25a and the electrode plate 3 (anode plate 10) opposite the water-conducting wall 25a is less than or equal to half the radius R of the virtual circle 55a of the water channel 55. The virtual circle 55a of the water channel 55 is a circle formed by the inlet 23 of the first electrolytic case 20 and the inlet 39 of the second electrolytic case 21. The virtual circle 55a of the water channel 55 may also be a circle formed by the outlet 27 of the first electrolytic case 20 and the outlet 43 of the second electrolytic case 21. The electrode plate 3 and the interlayer film 4 are arranged to include the center of the virtual circle 55a.

[0121] The water-conducting wall 41a of the second electrolytic case 21 is formed such that, when viewed from the upstream side, the distance L2 between the water-conducting wall 41a and the electrode plate 3 (cathode plate 11) opposite the water-conducting wall 41a is less than or equal to half the radius R of the virtual circle 55a of the water channel 55.

[0122] The water-conducting wall section 25, the upstream inclined wall section 24, and the downstream inclined wall section 26 may be provided separately from the first electrolytic case 20 and attached to the first electrolytic case 20. The water-conducting wall section 41, the upstream inclined wall section 40, and the downstream inclined wall section 42 may be provided separately from the second electrolytic case 21 and attached to the second electrolytic case 21.

[0123] The first electrolytic case 20 does not need to have a water-conducting wall 25, an upstream inclined wall 24, and a downstream inclined wall 26. The second electrolytic case 21 does not need to have a water-conducting wall 41, an upstream inclined wall 40, and a downstream inclined wall 42.

[0124] The first water passage 22 of the first electrolytic case 20 may be formed such that its passage area in a cross-section perpendicular to the water flow direction is smaller than that of the second water passage 38 of the second electrolytic case 21. For example, the first water passage 22 of the first electrolytic case 20 is provided with a water passage wall 25, an upstream inclined wall 24, and a downstream inclined wall 26. On the other hand, the second water passage 38 of the second electrolytic case 21 is not provided with a water passage wall 41, an upstream inclined wall 40, and a downstream inclined wall 42. Also, for example, the water passage walls 25a and 41a of the first electrolytic case 20 may be provided such that the distance L1 between the water passage wall 25a of the first electrolytic case 20 and the anode plate 10 is shorter than the distance L2 between the water passage wall 41a of the second electrolytic case 21 and the cathode plate 11. This makes it possible to increase the flow velocity of the water flowing on the anode plate 10 side that generates ozone, and suppresses the adhesion of ozone to the anode plate 10.

[0125] When the first electrolytic case 20 and the second electrolytic case 21 are assembled, the first terminal housing portion 31 of the first electrolytic case 20 (see Figure 10) and the first terminal housing portion 47 of the second electrolytic case 21 (see Figure 13) form a first housing portion 56 in which a part of the first terminal 5 is housed, as shown in Figure 9. The first housing portion 56 is formed so that the housed first terminal 5 abuts against the end portion 10a of the anode plate 10. The first housing portion 56 restricts the movement of the first terminal 5 in a direction intersecting the extension direction (current-carrying direction) of the first terminal 5.

[0126] The second terminal housing portion 32 of the first electrolytic case 20 (see Figure 10) and the second terminal housing portion 48 of the second electrolytic case 21 (see Figure 13) form a second housing portion 57 in which a part of the second terminal 6 is housed. The second housing portion 57 is formed so that the housed second terminal 6 abuts against the end portion 10a of the anode plate 10. The second housing portion 57 restricts the movement of the second terminal 6 in a direction intersecting the extension direction (current-carrying direction) of the second terminal 6.

[0127] As shown in Figure 7, the outer case 60 is configured to be divided in the direction of water flow. That is, the outer case 60 is configured to be disassembled in the direction of water flow. The outer case 60 houses and holds the electrolytic case 9.

[0128] The first outer case 61 of the outer case 60 is formed in a substantially cylindrical shape. The first outer case 61 is provided with a connecting portion 63. The connecting portion 63 is provided at the downstream end. The connecting portion 63 is formed to protrude in the direction of water flow, i.e., toward the downstream side. The connecting portion 63 is connected to other members. The other members are, for example, piping for supplying the generated ozonated water. The other members include other functional water generating devices 1. A threaded portion 63a is formed on the outer surface of the connecting portion 63.

[0129] As shown in Figure 14, the first outer case 61 has a discharge passage 65, a housing section 66, a first insertion hole 67, a second insertion hole 68, and a screw hole 69. Figure 14 is a diagram showing the outer case 60 in Figure 9.

[0130] The discharge channel 65 is formed in the connection section 63. The discharge channel 65 is formed to extend in the direction of water flow. The downstream end of the discharge channel 65 is formed to open to the outside. The upstream end of the discharge channel 65 communicates with the housing section 66. The discharge channel 65 communicates with the outlet sections 27 and 43 (see Figure 9) of the functional water generation unit 2.

[0131] The housing section 66 is formed to accommodate most of the electrolytic case 9 (see Figure 9). The housing section 66 is formed according to the shape of the electrolytic case 9. The housing section 66 holds the electrolytic case 9. An opening 66a is formed at the upstream end of the housing section 66. The insertion section 71 of the second outer case 62 is inserted into the opening 66a.

[0132] The first insertion hole 67 is formed in the side wall portion 61a of the first outer case 61. The first insertion hole 67 is formed to extend along the direction of current flow. The first insertion hole 67 communicates with the housing portion 66.

[0133] The second insertion hole 68 is formed in the side wall portion 61a of the first outer case 61. The second insertion hole 68 is formed to extend along the direction of current flow. The second insertion hole 68 communicates with the housing portion 66.

[0134] The first insertion hole 67 and the second insertion hole 68 are formed symmetrically with respect to the center line P1 of the first outer case 61, which extends in the direction of water flow.

[0135] The screw holes 69 are formed to extend along the direction of current flow. Two screw holes 69 are formed. The two screw holes 69 are formed symmetrically with respect to the center line P1 of the outer case 60. The screw holes 69 are formed downstream of the first insertion hole 67 and the second insertion hole 68.

[0136] The second outer case 62 of the outer case 60 closes the upstream end of the first outer case 61. The second outer case 62 includes a connecting portion 70 and an insertion portion 71. The connecting portion 70 is provided at the upstream end. The connecting portion 70 is formed to protrude in the direction opposite to the direction of water flow.

[0137] The insertion portion 71 is formed to protrude along the direction of water flow. The insertion portion 71 is inserted into the opening 66a of the first outer case 61. The insertion portion 71 has a groove 71a in which a sealing member 72 is provided.

[0138] The second outer case 62 has a housing section 75, a supply passage 76, and screw holes 77. The housing section 75 is formed to house a part of the electrolytic case 9. The housing section 75 holds the electrolytic case 9 (see Figure 9).

[0139] The supply passage 76 communicates with the upstream end of the housing section 75. The supply passage 76 is formed to extend in the direction opposite to the communication direction. The upstream end of the supply passage 76 is formed to open to the outside. The supply passage 76 communicates with the inlets 23 and 39 (see Figure 9) of the functional water generation unit 2. A threaded portion 76a is formed on the inner surface of the supply passage 76, as shown in Figure 14.

[0140] The screw holes 77 are formed to extend along the direction of current flow. Two screw holes 77 are formed. The two screw holes 77 are formed symmetrically with respect to the center line P1 of the outer case 60.

[0141] The screw holes 69 in the first outer case 61 and the screw holes 77 in the second outer case 62 are formed symmetrically with respect to the centerlines P2 of the first insertion hole 67 and the second insertion hole 68.

[0142] As shown in Figure 1, the fixing portion 80 is provided on the outside of the outer case 60. The fixing portion 80 is formed to extend in the direction of water flow. The fixing portion 80 includes a first fixing portion 81 and a second fixing portion 82.

[0143] As shown in Figure 9, the first fixing portion 81 includes a protruding portion 83 and an engaging portion 84. The protruding portion 83 is formed to protrude toward the outer case 60. The protruding portion 83 is inserted into the first insertion hole 67 of the first outer case 61. A groove 83a is formed in the protruding portion 83, in which a sealing member 85 is provided.

[0144] The engaging portions 84 are provided at both ends of the first fixing portion 81 in the water flow direction. The engaging portions 84 are formed to protrude toward the outer case 60 in the direction of energization. The downstream engaging portion 84 engages with the first outer case 61. The upstream engaging portion 84 engages with the second outer case 62. The first fixing portion 81 restricts the movement of the first outer case 61 in the water flow direction and the movement of the second outer case 62 in the direction opposite to the water flow direction by the engaging portions 84.

[0145] The first fixing portion 81 has a screw hole 87 and a first retaining hole 88. The screw hole 87 is formed to extend along the direction of current flow. The screw hole 87 is formed in accordance with the screw hole 69 of the first outer case 61 and the screw hole 77 of the second outer case 62. In other words, two screw holes 87 are formed.

[0146] The first retaining hole 88 is formed to extend along the direction of current flow. A portion of the first retaining hole 88 is formed as a protruding portion 83. The first electrode pin 7 is inserted into the first retaining hole 88. The first fixing portion 81 holds the first electrode pin 7. The first fixing portion 81 is formed symmetrically with respect to the center line P3 of the first retaining hole 88 (see Figure 1).

[0147] The first retaining hole 88 is formed by a first hole 88a, a second hole 88b, a third hole 88c, a fourth hole 88d, and a fifth hole 88e. In the direction of current flow, the first retaining hole 88 is formed in the order of first hole 88a, second hole 88b, third hole 88c, fourth hole 88d, and fifth hole 88e, from the outside to the inside (electrolytic case 9 side).

[0148] The first hole 88a is formed so that the threaded portion 7c of the first electrode pin 7 is exposed. The nut 13 and the power line 14 are housed in the first hole 88a.

[0149] The second hole 88b has a smaller diameter than the first hole 88a. A sealing member 89 is provided between the second hole 88b and the first electrode pin 7. The third hole 88c has a smaller diameter than the second hole 88b. It is desirable that the diameter of the third hole 88c be equal to the diameter of the first electrode pin 7. The fourth hole 88d has a larger diameter than the third hole 88c. A portion of the stopper 7b of the first electrode pin 7 is inserted into the fourth hole 88d. The connecting surface 88f connecting the third hole 88c and the fourth hole 88d abuts against the stopper 7b of the first electrode pin 7. The fifth hole 88e has a larger diameter than the fourth hole 88d. A portion of the first terminal 5 is inserted into the fifth hole 88e.

[0150] The second fixing portion 82 comprises a protruding portion 90 and an engaging portion 91. The protruding portion 90 is formed to protrude toward the outer case 60. The protruding portion 90 is inserted into the second insertion hole 68 of the first outer case 61. A groove 90a is formed in the protruding portion 90, in which a sealing member 95 is provided.

[0151] The engaging portions 91 are provided at both ends of the second fixing portion 82 in the water flow direction. The engaging portions 91 are formed to protrude toward the outer case 60 in the direction of energization. The downstream engaging portion 91 engages with the first outer case 61. The upstream engaging portion 91 engages with the second outer case 62. The second fixing portion 82 restricts the movement of the first outer case 61 in the water flow direction and the movement of the second outer case 62 in the direction opposite to the water flow direction by the engaging portions 91.

[0152] The second fixing portion 82 has a screw hole 92 and a second retaining hole 93. The screw hole 92 is formed to extend along the direction of current flow. The screw hole 92 is formed in accordance with the screw hole 69 of the first outer case 61 and the screw hole 77 of the second outer case 62. In other words, two screw holes 92 are formed.

[0153] The second retaining hole 93 is formed to extend along the direction of current flow. A portion of the second retaining hole 93 is formed into the protruding portion 90. The second electrode pin 8 is inserted into the second retaining hole 93. The second fixing portion 82 holds the second electrode pin 8. The second fixing portion 82 is formed symmetrically with respect to the center line P4 of the second retaining hole 93 (see Figure 1).

[0154] The second retaining hole 93 is formed by a first hole 93a, a second hole 93b, a third hole 93c, a fourth hole 93d, and a fifth hole 93e. In the direction of current flow, the second retaining hole 93 is formed in the order of the first hole 93a, the second hole 93b, the third hole 93c, the fourth hole 93d, and the fifth hole 93e, from the outside to the inside (towards the electrolytic case 9).

[0155] The first hole 93a is formed so that the threaded portion 8c of the second electrode pin 8 is exposed. The first hole 93a accommodates a nut 16 and a power line 17, etc.

[0156] The second hole 93b has a smaller diameter than the first hole 93a. A sealing member 94 is provided between the second hole 93b and the second electrode pin 8. The third hole 93c has a smaller diameter than the second hole 93b. It is desirable that the diameter of the third hole 93c be equal to the diameter of the second electrode pin 8. The fourth hole 93d has a larger diameter than the third hole 93c. A portion of the stopper 8b of the second electrode pin 8 is inserted into the fourth hole 93d. The connecting surface 93f connecting the third hole 93c and the fourth hole 93d abuts against the stopper 8b of the second electrode pin 8. The fifth hole 93e has a larger diameter than the fourth hole 93d. A portion of the second terminal 6 is inserted into the fifth hole 93e.

[0157] The outer case 60 is designed so that water can enter between it and the electrolytic case 9. Specifically, there is no sealing member between the outer case 60 and the electrolytic case 9. Therefore, water flows into the gap between the outer case 60 and the electrolytic case 9. In other words, the gap between the outer case 60 and the electrolytic case 9 becomes filled with water. Consequently, the functional water generation unit 2 is also held in place by the water that enters between the outer case 60 and the electrolytic case 9.

[0158] The functional water generator 1 generates ozonated water by supplying current to the electrode plate 3 via power lines 14 and 17, thereby generating ozone on the anode plate 10 side.

[0159] The water supplied to the supply passage 76 of the second outer case 62 flows from the supply passage 76 to the inlets 23 and 39 of the electrolytic case 9. The water that flows to the inlets 23 and 39 then branches off and flows towards the anode plate 10 side and the cathode plate 11 side.

[0160] The ozonated water generated on the anode plate 10 merges with the water that flowed along the cathode plate 11 side downstream of the electrode plate 3, flows from the outlets 27 and 43 of the electrolytic case 9 to the discharge passage 65 of the first outer case 61, and is discharged from the functional water generator 1.

[0161] Since the interlayer film 4 and the electrode plate 3 are sandwiched in the thickness direction by the first electrolytic case 20 and the second electrolytic case 21, the degree of contact between the interlayer film 4 and the electrode plate 3 is increased. As a result, the functional water generator 1 can improve the ozone generation efficiency.

[0162] The interlayer 4 protrudes upstream and downstream of the electrode plate 3. Therefore, the functional water generator 1 can generate ozone at both the upstream and downstream ends of the anode plate 10. For example, the functional water generator 1 can increase the amount of ozone generated at the upstream end face of the anode plate 10 perpendicular to the water flow direction.

[0163] By providing a water-permeable wall 25a in a position facing the anode plate 10, the water flow velocity at the point facing the anode plate 10 increases. This suppresses the adhesion of substances to the anode plate 10. For example, the adhesion of ozone to the anode plate 10 is suppressed.

[0164] Furthermore, by providing a water-permeable wall 41a at a position facing the cathode plate 11, the water flow velocity at the point facing the cathode plate 11 increases. This suppresses the adhesion of substances to the cathode plate 11. In addition, the difference between the water flow velocity on the anode plate 10 side and the water flow velocity on the cathode plate 11 side becomes smaller. Therefore, turbulence in the water flow that merges downstream of the electrode plate 3 is suppressed.

[0165] Furthermore, for example, by providing an upstream inclined wall section 24 upstream of the water passage wall section 25 in the first water passage channel 22, abrupt changes in the flow path shape in the water passage channel 55 are suppressed. As a result, turbulence in the water flow upstream of the electrode plate 3 is suppressed.

[0166] For example, in the first water channel 22, the connection point between the upstream inclined wall 24a and the water-conducting wall 25a is located downstream of the upstream end of the electrode plate 3. If the connection point between the upstream inclined wall 24a and the water-conducting wall 25a is located upstream of the upstream end of the electrode plate 3, the water, whose flow velocity has increased along the upstream inclined wall 24a, may collide with the upstream end of the electrode plate 3, potentially disrupting the water flow. By locating the connection point between the upstream inclined wall 24a and the water-conducting wall 25a downstream of the upstream end of the electrode plate 3, disruption of the water flow upstream of the electrode plate 3 is suppressed.

[0167] Furthermore, for example, by providing a downstream inclined wall section 26 downstream of the water passage wall section 25 in the first water passage channel 22, abrupt changes in the flow path shape in the water passage channel 55 are suppressed. As a result, disturbances in the water flow downstream of the electrode plate 3 are suppressed, and ozone accumulation is suppressed.

[0168] For example, in the first water channel 22, the connection point between the downstream inclined wall 26a and the water-carrying wall 25a is located downstream of the downstream end of the electrode plate 3. This increases the water flow velocity even near the downstream anode plate 10. As a result, ozone deposition on the downstream anode plate 10 is suppressed.

[0169] Furthermore, for example, in the first water channel 22, the inclination angle a1 of the upstream inclined wall 24a is smaller than the inclination angle a2 of the downstream inclined wall 26a. Therefore, turbulence in the water flow at the point facing the electrode plate 3 is suppressed. Also, the ozonated water generated at the anode plate 10 is quickly mixed with the water flowing on the cathode plate 11 side. Therefore, deterioration of components downstream of the electrode plate 3 (such as the electrolytic case 9) due to ozonated water with a high ozone concentration flowing on the anode plate 10 side is suppressed.

[0170] Next, an example of the assembly procedure for the functional water generator 1 will be described. Note that the assembly procedure for the functional water generator 1 is not limited to this example.

[0171] First, the anode plate 10 is attached to the electrode housing portion 30 of the first electrolytic case 20. The electrode housing portion 30 is recessed in the thickness direction to match the shape of the anode plate 10. Therefore, the mounting position of the anode plate 10 can be easily determined. Since the anode plate 10 is held in place by the electrode housing portion 30, it is prevented from coming off the first electrolytic case 20. Similarly, the cathode plate 11 is attached to the electrode housing portion 46 of the second electrolytic case 21. The mounting position of the cathode plate 11 can also be easily determined, and it is prevented from coming off the second electrolytic case 21.

[0172] Next, the interlayer film 4 is attached to the first electrolytic case 20. Since the first electrolytic case 20 is provided with multiple protrusions 34, the attachment position of the interlayer film 4 can be easily determined. The interlayer film 4 is held in place by the multiple protrusions 34, so that it does not come off the first electrolytic case 20.

[0173] Next, the first electrolytic case 20 and the second electrolytic case 21 are assembled. The multiple protrusions 34 of the first electrolytic case 20 are inserted into the multiple recesses 49 of the second electrolytic case 21, thereby assembling the first electrolytic case 20 and the second electrolytic case 21. The insertion of the multiple protrusions 34 into the multiple recesses 49 prevents misalignment between the first electrolytic case 20 and the second electrolytic case 21 in a direction perpendicular to the plate thickness direction. As a result, misalignment of the anode plate 10, cathode plate 11, and interlayer film 4 in a direction perpendicular to the plate thickness direction is suppressed.

[0174] Next, the second electrolytic case 21 is fixed to the first electrolytic case 20. Specifically, screws 51 are inserted into the screw holes 50 of the second electrolytic case 21 and the screw holes 35 of the first electrolytic case 20, and the screws 51 are fastened to the first electrolytic case 20, thereby fixing the second electrolytic case 21 to the first electrolytic case 20. Since the screw holes 50 and 35 are formed adjacent to the four corners of the electrode plate 3, the electrode plate 3 and the interlayer film 4 are stably clamped. In other words, the variation in clamping force in the planar direction of the interlayer film 4 is suppressed.

[0175] When the first electrolytic case 20 and the second electrolytic case 21 are assembled, the first terminal housing portion 31 of the first electrolytic case 20 and the first terminal housing portion 47 of the second electrolytic case 21 form a first housing portion 56. Also, when the first electrolytic case 20 and the second electrolytic case 21 are assembled, the second terminal housing portion 32 of the first electrolytic case 20 and the second terminal housing portion 48 of the second electrolytic case 21 form a second housing portion 57.

[0176] Next, the electrolytic cases 9 (first electrolytic case 20 and second electrolytic case 21) are inserted into the housing section 66 of the first outer case 61. Also, the insertion section 71 of the second outer case 62 is inserted into the opening 66a of the first outer case 61. As a result, the electrolytic cases 9 are held in the outer case 60 (first outer case 61 and second outer case 62).

[0177] Next, the first terminal 5 is inserted into the first insertion hole 67 of the first outer case 61 and the first housing section 56 of the electrolytic case 9.

[0178] Next, the first electrode pin 7 is attached to the first retaining hole 88 of the first fixing part 81. The first electrode pin 7 is inserted from the side of the fifth hole 88e. The first electrode pin 7 is held by the first fixing part 81 via a sealing member 89 provided in the second hole 88b.

[0179] Next, the first fixing part 81 is attached to the outer case 60. The first fixing part 81 is attached to the outer case 60 so that the first electrode pin 7 is inserted into the first terminal 5. After the first fixing part 81 is temporarily fixed to the outer case 60 by the engaging part 84, it is fixed to the first outer case 61 and the second outer case 62 by screws 100.

[0180] As the first fixing part 81 is attached to the outer case 60, the first terminal 5 is pushed toward the anode plate 10 by the first electrode pin 7 and comes into contact with the end 10a of the anode plate 10. The anode plate 10 is biased toward the second terminal 6 by the first terminal 5. The anode plate 10, biased by the first terminal 5, comes into contact with the isolation wall 33 of the first electrolytic case 20, and its movement toward the second terminal 6 is restricted.

[0181] Next, the second terminal 6 is inserted into the second insertion hole 68 of the first outer case 61 and the second housing section 57 of the electrolytic case 9.

[0182] Next, similar to the first fixing part 81, the second electrode pin 8 is attached to the second holding hole 93 of the second fixing part 82, and the second fixing part 82 is attached to the outer case 60.

[0183] As the second fixing part 82 is attached to the outer case 60, the second terminal 6 is pushed toward the cathode plate 11 by the second electrode pin 8 and comes into contact with the end 11a of the cathode plate 11. The cathode plate 11 is biased toward the first terminal 5 by the second terminal 6. The cathode plate 11, biased by the second terminal 6, comes into contact with the isolation wall 52 of the second electrolytic case 21, and its movement toward the first terminal 5 is restricted.

[0184] Next, power lines 14 and 17 are attached to the first electrode pin 7 exposed in the first hole 88a of the first retaining hole 88 of the first fixing part 81, and to the second electrode pin 8 exposed in the first hole 93a of the second retaining hole 93 of the second fixing part 82, respectively.

[0185] The functional water generator 1 deteriorates as it is used, with components such as the interlayer membrane 4 and electrode plates 3 deteriorating. Therefore, the functional water generator 1 requires maintenance, such as replacing the interlayer membrane 4. During maintenance of the functional water generator 1, it is disassembled.

[0186] When the functional water generator 1 is disassembled, first the screws 100 are removed from the outer case 60, and the fixing parts 80 (first fixing part 81, second fixing part 82) are removed from the outer case 60. The first electrode pin 7 is removed together with the first fixing part 81. The second electrode pin 8 is removed together with the second fixing part 82. Also, the first terminal 5 is removed from the first housing part 56. Also, the second terminal 6 is removed from the second housing part 57.

[0187] Next, for example, the second outer case 62 is removed from the first outer case 61. The second outer case 62 is removed from the first outer case 61 by moving it in the direction opposite to the water flow direction.

[0188] Next, the electrolytic case 9 is removed from the first outer case 61. Then, the screws 51 are removed from the electrolytic case 9.

[0189] Next, for example, the second electrolytic case 21 is removed from the first electrolytic case 20. As the second electrolytic case 21 moves in the thickness direction, the second electrode case is removed from the first electrode case. This makes it possible to replace the electrode plate 3 and the interlayer film 4.

[0190] As described above, the functional water generator 1 is disassembled, allowing for maintenance such as replacement of the interlayer membrane 4 and electrode plates 3.

[0191] The functional water generator 1 comprises electrode plates 3 and an electrolytic case 9. The electrolytic case 9 holds the electrode plates 3 and forms a water passage 55 through which water flows. The electrolytic case 9 comprises a first electrolytic case 20 and a second electrolytic case 21. The second electrolytic case 21 is assembled to the first electrolytic case 20 in a manner that allows for disassembly. The functional water generator 1 also includes an interlayer membrane 4 provided between the electrode plates 3.

[0192] As a result, the functional water generator 1 allows for the replacement of the electrode plates 3 and the interlayer membrane 4 by disassembling the electrolytic case 9. Therefore, operators can easily perform tasks such as replacing the electrode plates 3. In addition, the functional water generator 1 can improve the ozone generation efficiency by increasing the degree of contact between the interlayer membrane 4 and the electrode plates 3 by sandwiching them with the electrolytic case 9.

[0193] The first electrolytic case 20 and the second electrolytic case 21 are configured to be divided in the thickness direction of the electrode plate 3.

[0194] As a result, the functional water generator 1 becomes exposed when the electrolytic case 9 is disassembled, revealing the electrode plates 3 and the interlayer film 4. Therefore, an operator can easily replace the electrode plates 3 and the interlayer film 4 by, for example, removing the second electrolytic case 21 from the first electrolytic case 20.

[0195] The first electrolytic case 20 has an electrode housing portion 30 that is recessed in the thickness direction of the anode plate 10 to match the shape of the anode plate 10 and holds the anode plate 10. The second electrolytic case 21 has an electrode housing portion 46 that is recessed in the thickness direction of the cathode plate 11 to match the shape of the cathode plate 11 and holds the cathode plate 11.

[0196] This makes it easy to determine the mounting position of the anode plate 10 when attaching it to the first electrolytic case 20, for example. As a result, the functional water generator 1 can be easily assembled. Furthermore, since the anode plate 10 is held in place by the first electrolytic case 20, the functional water generator 1 can prevent the anode plate 10 from coming loose from the first electrolytic case 20 during assembly or when replacing the anode plate 10.

[0197] The electrode housing portion 30 of the first electrolytic case 20 is formed such that when the anode plate 10 is housed in the electrode housing portion 30, the surface 10c of the anode plate 10 on the cathode plate 11 side and the surrounding surface 30a of the electrode housing portion 30 are aligned. The electrode housing portion 46 of the second electrolytic case 21 is formed such that when the cathode plate 11 is housed in the electrode housing portion 46, the surface 11b of the cathode plate 11 on the anode plate 10 side and the surrounding surface 46a of the electrode housing portion 46 are aligned.

[0198] As a result, the functional water generator 1 can suppress wobbling of the interlayer 4 and electrode plate 3 in the thickness direction. Therefore, the functional water generator 1 can increase the degree of contact between the interlayer 4 and electrode plate 3 and improve the ozone generation efficiency.

[0199] The first electrolytic case 20 and the second electrolytic case 21 are fixed together by screws 51 at locations adjacent to the four corners of the electrode plate 3.

[0200] As a result, the functional water generator 1 can stably clamp the interlayer membrane 4 and the electrode plate 3. In other words, the functional water generator 1 can suppress variations in clamping force in the planar direction (direction perpendicular to the plate thickness direction) of the interlayer membrane 4 and the electrode plate 3. Therefore, the functional water generator 1 can clamp the interlayer membrane 4 and the electrode plate 3 with an overall suitable clamping force. Consequently, the functional water generator 1 can improve the ozone generation efficiency and suppress the deterioration of the interlayer membrane 4 and the electrode plate 3.

[0201] The interlayer 4 has a length in the water flow direction that is longer than that of the electrode plate 3 in the water flow direction. Specifically, the interlayer 4 protrudes upstream of the electrode plate 3. Also, the interlayer 4 protrudes downstream of the electrode plate 3.

[0202] As a result, the functional water generator 1 can promote ozone generation at both the upstream end and the downstream end of the anode plate 10, thereby improving the ozone generation efficiency.

[0203] The first electrolytic case 20 has a plurality of protrusions 34 that protrude toward the second electrolytic case 21 and hold the interlayer film 4.

[0204] This makes it easy to determine the mounting position of the interlayer membrane 4 when attaching it to the first electrolytic case 20. As a result, the functional water generator 1 can be easily assembled. Furthermore, since the interlayer membrane 4 is held in place by the first electrolytic case 20, the functional water generator 1 can prevent the interlayer membrane 4 from coming off the first electrolytic case 20 during assembly or when replacing the interlayer membrane 4.

[0205] The second electrolytic case 21 is provided with a plurality of recesses 49 into which the protruding portion 34 of the first electrolytic case 20 is inserted.

[0206] As a result, the functional water generator 1 can prevent misalignment between the first electrolytic case 20 and the second electrolytic case 21 in a direction perpendicular to the plate thickness direction. Therefore, the functional water generator 1 can suppress misalignment between the first electrolytic case 20 and the second electrolytic case 21 during assembly, thereby suppressing positional misalignment of the anode plate 10, cathode plate 11, and interlayer film 4.

[0207] The functional water generator 1 is equipped with a first terminal 5 and a second terminal 6. The first terminal 5 is electrically connected to the end 10a of the anode plate 10. The second terminal 6 is electrically connected to the end 11a of the cathode plate 11.

[0208] As a result, the functional water generator 1 can reduce the space required for the first terminal 5 and the second terminal 6, and the first terminal 5 and the second terminal 6 can be arranged efficiently.

[0209] The functional water generator 1 comprises a first electrode pin 7 and a second electrode pin 8. The first electrode pin 7 holds the first terminal 5 so that the first terminal 5 contacts the anode plate 10. The second electrode pin 8 holds the second terminal 6 so that the second terminal 6 contacts the cathode plate 11. The first terminal 5 is a contact spring. The second terminal 6 is a contact spring.

[0210] As a result, the functional water generator 1 can reliably bring, for example, the first terminal 5 and the anode plate 10 into contact through the biasing force of the spring. Therefore, the functional water generator 1 can reduce the contact resistance between the first terminal 5 and the anode plate 10. Consequently, the functional water generator 1 can improve the ozone generation efficiency.

[0211] The anode plate 10 is provided such that the end 10a to which the first terminal 5 is electrically connected protrudes toward the first terminal 5 side more than the cathode plate 11. The cathode plate 11 is provided such that the end 11a to which the second terminal 6 is electrically connected protrudes toward the second terminal 6 side more than the anode plate 10.

[0212] This allows the functional water generator 1 to secure space for connecting, for example, the first terminal 5 and the anode plate 10, and to make contact with the first terminal 5 only with the anode plate 10. Therefore, the functional water generator 1 can prevent short circuits from occurring.

[0213] The electrolytic case 9 comprises a first housing section 56 and a second housing section 57. The first housing section 56 houses a portion of the first terminal 5 and restricts the movement of the first terminal 5 in a direction intersecting the direction of current flow. The second housing section 57 houses a portion of the second terminal 6 and restricts the movement of the second terminal 6 in a direction intersecting the direction of current flow.

[0214] As a result, the functional water generator 1 can, for example, suppress the bending of the first terminal 5 in a direction intersecting the current flow direction, thereby preventing poor contact between the first terminal 5 and the anode plate 10.

[0215] The functional water generator 1 includes an outer case 60. The outer case 60 houses and holds the electrolytic case 9.

[0216] This allows the functional water generator 1 to protect the electrolytic case 9 with the outer case 60, thereby improving the durability of the electrolytic case 9.

[0217] The outer case 60 comprises a first outer case 61 and a second outer case 62. The second outer case 62 is removably assembled to the first outer case 61. The first outer case 61 and the second outer case 62 are configured to be separated in the direction of water flow.

[0218] This allows the functional water generator 1 to have different division directions for the electrolytic case 9 (water flow direction) and the outer case 60 (plate thickness direction). Therefore, the functional water generator 1 can stably hold the electrolytic case 9 with the outer case 60.

[0219] The functional water generator 1 includes a fixing part 80. The fixing part 80 is configured to extend along the direction of water flow on the outside of the outer case 60 and fixes the first outer case 61 and the second outer case 62. The fixing part 80 includes a first fixing part 81 that holds the first electrode pin 7 and a second fixing part 82 that holds the second electrode pin 8.

[0220] As a result, the functional water generator 1 can fix the first outer case 61 and the second outer case 62 with the fixing part 80, while the fixing part 80 can also hold the first electrode pin 7 and the second electrode pin 8. Therefore, the functional water generator 1 can have fewer parts and thus reduce costs.

[0221] The outer case 60 is configured to allow water to enter between it and the electrolytic case 9.

[0222] As a result, the functional water generator 1 can hold the electrolytic case 9 in place by the water that has seeped between the outer case 60 and the electrolytic case 9. For example, even if the screws 51 that fix the first electrolytic case 20 and the second electrolytic case 21 to each other become loose, the functional water generator 1 can still hold the first electrolytic case 20 and the second electrolytic case 21 in place by the water pressure of the water that has seeped between the outer case 60 and the electrolytic case 9. Therefore, the functional water generator 1 can ensure that the electrode plate 3 and the interlayer film 4 are in close contact.

[0223] The electrode plate 3 is positioned such that, when viewed from the direction of water flow, it includes the center of the virtual circle 55a of the water passage 55. The water passage 55 includes water passage walls 25a and 41a. The water passage walls 25a and 41a are formed opposite the electrode plate 3. The water passage walls 25a and 41a are formed such that, when viewed from the direction of water flow, the distances L1 and L2 between the water passage walls 25a and 41a and the electrode plate 3 opposite them are less than or equal to half the radius R of the virtual circle 55a.

[0224] As a result, the functional water generator 1 can increase the water flow velocity at the point where it faces the electrode plate 3, thereby suppressing the adhesion of substances to the electrode plate 3. The functional water generator 1 can, for example, suppress the adhesion of ozone to the anode plate 10. Therefore, the functional water generator 1 can suppress the inhibition of new ozone generation and improve the ozone generation efficiency. In addition, the functional water generator 1 can reduce the difference between the water flow velocity on the anode plate 10 side and the water flow velocity on the cathode plate 11 side. Therefore, the functional water generator 1 can suppress turbulence in the water flow that merges downstream of the electrode plate 3.

[0225] The water-conducting walls 25a and 41a are flat surfaces.

[0226] As a result, the functional water generator 1 can increase the flow velocity while stabilizing the water flow at the point facing the electrode plate 3. Therefore, the functional water generator 1 can suppress the adhesion of substances to the electrode plate 3.

[0227] The water channel 55 includes upstream inclined walls 24a and 40a. The upstream inclined walls 24a and 40a are formed upstream of the water channels 25a and 41a and are connected to the water channels 25a and 41a.

[0228] As a result, the functional water generator 1 can suppress abrupt changes in the flow path shape in the water channel 55. Therefore, the functional water generator 1 can suppress turbulence in the water flow upstream of the electrode plate 3.

[0229] The connection points between the upstream inclined walls 24a and 40a and the water-conducting walls 25a and 41a are located downstream of the upstream end of the electrode plate 3.

[0230] As a result, the functional water generator 1 can prevent water flowing along the upstream inclined walls 24a and 40a from colliding with the upstream end of the electrode plate 3. Therefore, the functional water generator 1 can prevent turbulence in the water flow upstream of the electrode plate 3.

[0231] The waterway 55 includes downstream inclined walls 26a and 42a. The downstream inclined walls 26a and 42a are formed downstream of the waterway walls 25a and 41a and are connected to the waterway walls 25a and 41a.

[0232] As a result, the functional water generator 1 can suppress abrupt changes in the flow path shape in the water channel 55. Therefore, the functional water generator 1 can suppress turbulence in the water flow, for example, downstream of the anode plate 10, and suppress ozone accumulation.

[0233] The connection points between the downstream inclined walls 26a and 42a and the water-conducting walls 25a and 41a are located downstream of the downstream end of the electrode plate 3.

[0234] As a result, the functional water generator 1 can increase the water flow velocity, for example, near the downstream anode plate 10. Therefore, the functional water generator 1 can suppress the adhesion of ozone to the downstream anode plate 10.

[0235] The inclination angles a1 and b1 of the upstream inclined walls 24a and 40a are smaller than the inclination angles a2 and b2 of the downstream inclined walls 26a and 42a.

[0236] As a result, the functional water generator 1 can suppress turbulence in the water flow at the point facing the electrode plate 3, and can quickly mix the ozonated water generated at the anode plate 10 with the water flowing on the cathode plate 11 side. Therefore, the functional water generator 1 can suppress exposure of components downstream of the electrode plate 3 to water with a high ozone concentration, and can suppress deterioration of components downstream of the electrode plate 3.

[0237] The electrode plate 3 may be formed such that its length in the water flow direction is longer than its length in the current flow direction. By making it longer in the water flow direction, the amount of ozone generated at the anode plate 10 can be increased.

[0238] For example, when the first terminal 5 is joined to the anode plate 10, a notch is formed in the first outer case 61 so that the first terminal 5 can move in a direction parallel to the water flow direction. A closing member is inserted into the notch to close the notch.

[0239] (Cleaning system) Next, the cleaning system 110, which includes the functional water generator 1, will be described with reference to Figure 15. Figure 15 is a schematic diagram showing the cleaning system 110 according to an embodiment.

[0240] The cleaning system 110 cleans the objects to be cleaned 120 with ozonated water generated by the functional water generator 1. The objects to be cleaned 120 include flush toilets, washing machines, bathtubs, bathrooms, sinks, washbasins, and dishwashers. The cleaning system 110 comprises the functional water generator 1, a supply pipe 111, a discharge pipe 112, and a bypass pipe 113.

[0241] The functional water generator 1 separates the water that flows along the anode plate 10, i.e., the ozonated water generated by the anode plate 10, from the water that flows along the cathode plate 11, downstream of the electrode plate 3 (see Figure 7), and discharges it from the electrolytic case 9 (see Figure 7) and the outer case 60 (see Figure 7). For example, as shown in Figure 16, the functional water generator 1 has a partition wall 115 in the electrolytic case 9 downstream of the electrode plate 3. Figure 16 is a schematic diagram showing the configuration of the downstream side of the electrode plate 3 in the functional water generator 1. The downstream side of the electrode plate 3 is divided by the partition wall 115 into an anode-side discharge passage 116 and a cathode-side discharge passage 117. Ozone water generated by the anode plate 10 flows into the anode-side discharge passage 116. Water that has flowed along the cathode plate 11 flows into the cathode-side discharge passage 117. The functional water generator 1 separates and discharges the water that flows on the anode plate 10 side from the water that flows on the cathode plate 11 side using a partition wall 115.

[0242] The partition wall 115 may be provided so that a portion of the water flowing on the anode plate 10 side and a portion of the water flowing on the cathode plate 11 side mix. The mixing ratio of the water flowing on the anode plate 10 side and the water flowing on the cathode plate 11 side by the partition wall 115 is set according to the ozone concentration of the ozonated water supplied to the object to be cleaned 120.

[0243] The supply pipe 111 connects the functional water generator 1 and the object to be cleaned 120. The supply pipe 111 supplies ozonated water generated by the functional water generator 1 to the object to be cleaned 120. The supply pipe 111 is connected to the functional water generator 1 so that water flowing over the anode plate 10 flows into it. The supply pipe 111 is connected to the anode-side discharge passage 116.

[0244] The discharge pipe 112 is connected to the object to be cleaned 120. Specifically, the discharge pipe 112 is connected to the discharge passage of the object to be cleaned 120. Water that has flowed through the object to be cleaned 120, i.e., wastewater, flows into the discharge pipe 112.

[0245] The bypass pipe 113 connects the functional water generator 1 and the discharge pipe 112. That is, the bypass pipe 113 bypasses the object to be cleaned 120 and connects to the discharge pipe 112. The bypass pipe 113 is connected to the functional water generator 1 so that water flowing on the cathode plate 11 side flows into it. The bypass pipe 113 causes water flowing on the cathode plate 11 side to flow into the discharge pipe 112. The bypass pipe 113 is connected to the cathode side discharge passage 117.

[0246] The ozonated water with a high ozone concentration generated by the anode plate 10 is supplied to the object to be cleaned 120 via the supply pipe 111, without merging with the water flowing on the cathode plate 11 side. Therefore, the object to be cleaned 120 is supplied with ozonated water with a high ozone concentration.

[0247] The wastewater discharged from the object to be cleaned 120 into the discharge pipe 112 merges with water supplied by the bypass pipe 113. The wastewater is diluted by the water supplied by the bypass pipe 113. This reduces the ozone concentration in the wastewater.

[0248] When cleaning the object 120 with ozonated water, it is desirable to supply ozonated water with a high ozone concentration to the object 120 in order to enhance the disinfecting effect.

[0249] However, ozonated water with a high ozone concentration may degrade substances. Therefore, it is desirable to reduce the ozone concentration after use.

[0250] The cleaning system 110 comprises a functional water generator 1, a supply pipe 111, a discharge pipe 112, and a bypass pipe 113. The supply pipe 111 is connected to the anode-side discharge passage 116 and supplies ozonated water to the object to be cleaned 120. The discharge pipe 112 carries wastewater discharged from the object to be cleaned 120. The bypass pipe 113 is connected to the cathode-side discharge passage 117 and bypasses the object to be cleaned 120 before connecting to the discharge pipe 112.

[0251] As a result, the cleaning system 110 can supply ozonated water with a high ozone concentration to the object to be cleaned 120, thereby improving the disinfection effect of the object to be cleaned 120. In addition, the cleaning system 110 can dilute the wastewater discharged from the object to be cleaned 120 with the water that has flowed on the cathode plate 11 side. Therefore, the cleaning system 110 can suppress deterioration of the discharge pipe 112 and other components.

[0252] The cleaning system 110 may include a first removal device 121 and a second removal device 122, as shown in Figure 17. Figure 17 is a schematic diagram showing a modified cleaning system 110.

[0253] The first removal device 121 is located upstream of the functional water generator 1. The first removal device 121 is a device that removes substances that inhibit ozone generation in the functional water generator 1. Substances that inhibit ozone generation include substances that degrade the electrode plates 3 and the interlayer membrane 4. The first removal device 121 has a reverse osmosis membrane. The first removal device 121 removes, for example, calcium contained in the water. The first removal device 121 supplies the calcium-free water to the functional water generator 1.

[0254] The second removal device 122 is located upstream of the first removal device 121. The second removal device 122 is a device that removes substances that degrade the reverse osmosis membrane in the first removal device 121. The second removal device 122 has a chlorine adsorbent. The chlorine adsorbent is, for example, activated carbon. The second removal device 122 removes chlorine contained in the water. The second removal device 122 supplies the chlorine-free water to the first removal device 121. The functional water generator 1 is supplied with water that has passed through both the second removal device 122 and the first removal device 121.

[0255] The cleaning system 110 can suppress the decrease in ozone generation efficiency in the functional water generator 1 and the deterioration of the functional water generator 1 through the first removal device 121. Furthermore, the cleaning system 110 can suppress the deterioration of the first removal device 121 through the second removal device 122.

[0256] The cleaning system 110 may also include a removal device 123, as shown in Figure 18. Figure 18 is a schematic diagram showing a modified cleaning system 110.

[0257] The removal device 123 is installed upstream of the functional water generator 1. The removal device 123 is a device that removes substances that inhibit ozone generation in the functional water generator 1. The removal device 123 has an ion exchange membrane. The removal device 123 softens the water. Water that has passed through the removal device 123 is supplied to the functional water generator 1.

[0258] The cleaning system 110, through the removal device 123, can suppress the decrease in the ozone generation efficiency in the functional water generator 1 and the deterioration of the functional water generator 1.

[0259] (Functional water generation system) Next, the functional water generation system 130 according to the embodiment will be described with reference to Figures 19 to 24. Figure 19 is a front view of the functional water generation system 130. Figure 20 is a rear view of the functional water generation system 130. Figure 21 is a left side view of the functional water generation system 130. Figure 22 is a right side view of the functional water generation system 130. Figure 23 is a top view of the functional water generation system 130. Figure 24 is a bottom view of the functional water generation system 130.

[0260] The functional water generation system 130 generates ozonated water using multiple functional water generators 1. The functional water generation system 130 comprises multiple functional water generators 1 and a connection mechanism 131. The multiple functional water generators 1 are identical devices. For example, the functional water generation system 130 comprises two functional water generators 1. The two functional water generators 1 are connected in parallel.

[0261] The connection mechanism 131 connects two functional water generators 1 in parallel. The connection mechanism 131 includes an upstream connection mechanism 132 and a downstream connection mechanism 133.

[0262] The upstream connection mechanism 132 is connected to the connection section 70 of the two functional water generators 1. The upstream connection mechanism 132 comprises a connecting pipe 140 and a joint pipe 141.

[0263] The connecting pipe 140 includes an inlet 142 and a branching section 143. The inlet 142 is connected to the water supply piping (not shown). The branching section 143 is provided downstream of the inlet 142. Multiple branching sections 143 are provided depending on the number of functional water generators 1. Two branching sections 143 are provided.

[0264] As shown in FIG. 25, the connecting pipe 140 may include an adjustment portion 144. FIG. 25 is a schematic diagram for explaining the connecting pipe 140 having the adjustment portion 144. The adjustment portion 144 adjusts the flow rate of water flowing into the plurality of functional water generation devices 1. The adjustment portion 144 adjusts, for example, the flow rate of water flowing into two functional water generation devices 1. The adjustment portion 144 is, for example, a partition wall. The water flowing in from the inflow portion 142 is divided into two flows by the adjustment portion 144 and flows into the functional water generation device 1.

[0265] By providing the adjustment portion 144, the flow rate of water flowing into each functional water generation device 1 can be adjusted. The adjustment portion 144 may be a movable valve.

[0266] As shown in FIG. 19, the joint pipe 141 connects the branch portion 143 and the functional water generation device 1. The joint pipe 141 is connected to the connection portion 70 of the functional water generation device 1. The joint pipe 141 is formed in a substantially L shape. A plurality of joint pipes 141 are provided according to the number of functional water generation devices 1. Two joint pipes 141 are provided. The plurality of joint pipes 141 are the same pipe. The plurality of joint pipes 141 are connected to the connecting pipe 140.

[0267] The downstream connection mechanism 133 is connected to the connection portions 63 of two functional water generation devices 1. The downstream connection mechanism 133 includes a connecting pipe 145 and a joint pipe 146.

[0268] The connecting pipe 145 includes an outflow portion 147 and a branch portion 148. The outflow portion 147 is connected to a drainage-side pipe (not shown). The branch portion 148 is provided upstream of the outflow portion 147. A plurality of branch portions 148 are provided according to the number of functional water generation devices 1. Two branch portions 148 are provided.

[0269] The joint pipe 146 connects the branch section 148 to the functional water generator 1. The joint pipe 146 is connected to the connection section 63 of the functional water generator 1. The joint pipe 146 is formed in a roughly L-shape. Multiple joint pipes 146 are provided, depending on the number of functional water generators 1. Two joint pipes 146 are provided. Multiple joint pipes 146 are the same pipe.

[0270] The connection mechanism 131 connects the two functional water generators 1 at equal intervals. When the upstream connection mechanism 132 and the downstream connection mechanism 133 are arranged so that the centerline Q1 of the inlet 142 and the centerline Q2 of the outlet 147 coincide, as shown in Figure 19, and connected to the two functional water generators 1, the distances M1 and M2 from the centerline Q1 of the inlet 142 and the centerline Q2 of the outlet 147 to the centerline P1 of the first outer case 61 of the two functional water generators 1 become equal.

[0271] The functional water generation system 130 includes a control device 150, as shown in Figure 26. Figure 26 is a block diagram illustrating the control device 150 of the functional water generation system 130. The control device 150 includes a storage unit 151 and a controller 152.

[0272] The memory unit 151 is implemented by a storage device such as ROM (Read Only Memory), RAM (Random Access Memory), or flash memory. Various data and programs are stored in the memory unit 151.

[0273] The controller 152 corresponds to what is commonly known as a processor. The controller 152 can be implemented using a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphical Processing Unit), etc. The controller 152 executes the program stored in the memory unit 151, using RAM as the working area. The controller 152 can also be implemented using an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0274] The controller 152 controls the generation of functional water in each functional water generator 1. For example, the controller 152 switches the generation of ozonated water in each functional water generator 1 ON (on) or OFF (off). The controller 152 switches the generation of ozonated water in each functional water generator 1 ON or OFF by energizing each functional water generator 1 (ON state) or de-energizing it (OFF state).

[0275] For example, the controller 152 can power on the two functional water generators 1, thereby enabling them to generate ozonated water. The controller 152 can also de-energize the two functional water generators 1, thereby stopping the generation of ozonated water in the two functional water generators 1.

[0276] When both functional water generators 1 are energized, the water flowing into the inlet 142 of the upstream connection mechanism 132 is separated by the branching section 143 and flows into the two functional water generators 1. Each of the two functional water generators 1 generates ozonated water. Each functional water generator 1 generates ozonated water with the water separated by the upstream connection mechanism 132. Each functional water generator 1 generates ozonated water with a smaller amount of water than, for example, if only one functional water generator 1 were installed. Therefore, each functional water generator 1 can generate ozonated water with a high ozone concentration.

[0277] Furthermore, since the water separated by the upstream connection mechanism 132 flows into each functional water generator 1 and generates ozonated water in each functional water generator 1, the difference in ozone concentration of the ozonated water discharged from each functional water generator 1 is small. Therefore, the difference in the degree of deterioration of each functional water generator 1 due to ozone can be reduced. For example, it is possible to prevent a situation in which a certain functional water generator 1 is continuously exposed to ozonated water with a high ozone concentration.

[0278] The controller 152 may change the number of functional water generators 1 that are energized. Changing the number of functional water generators 1 that are energized alters the concentration of ozonated water discharged from the outlet 147 of the downstream connection mechanism 133.

[0279] The controller 152 can operate the two functional water generators 1 in rotation. For example, the controller 152 switches which functional water generator 1 is powered on at predetermined intervals.

[0280] The controller 152 energizes only one of the functional water generators 1, causing that one functional water generator 1 to generate ozonated water. In this case, the other functional water generator 1 is not energized and therefore does not generate ozonated water.

[0281] When a predetermined time has elapsed, the controller 152 de-energizes one of the functional water generators 1 and energizes the other functional water generator 1. As a result, the other functional water generator 1 generates ozonated water. The other functional water generator 1, being de-energized, does not generate ozonated water.

[0282] The functional water generation system 130 may comprise three functional water generating devices 1, as shown in Figures 27 to 32. Figure 27 is a front view of the functional water generation system 130 according to a modified example. Figure 28 is a rear view of the functional water generation system 130 according to a modified example. Figure 29 is a left side view of the functional water generation system 130 according to a modified example. Figure 30 is a right side view of the functional water generation system 130 according to a modified example. Figure 31 is a top view of the functional water generation system 130 according to a modified example. Figure 32 is a bottom view of the functional water generation system 130 according to a modified example.

[0283] The upstream connection mechanism 160 comprises a connecting pipe 161 and three joint pipes 141. The connecting pipe 161 comprises an inlet 142 and three branching sections 162.

[0284] Furthermore, the downstream connection mechanism 165 includes a connecting pipe 166 and three joint pipes 146. The connecting pipe 166 includes an outlet section 147 and three branch sections 167.

[0285] The upstream connection mechanism 160 and the downstream connection mechanism 165 connect the three functional water generators 1 at equal intervals. When the upstream connection mechanism 160 and the downstream connection mechanism 165 are arranged so that the center line Q1 of the inlet 142 and the center line Q2 of the outlet 147 coincide, as shown in Figure 31, and connected to the three functional water generators 1, the distance M3 from the center lines Q1 and Q2 to the center line P1 of the three functional water generators 1 will be equal. Also, the angle formed by the lines connecting the center lines Q1 and Q2 and the center line P1 of the three functional water generators 1 will be 120 degrees.

[0286] The functional water generation system 130 comprises a plurality of functional water generation devices 1. The plurality of functional water generation devices 1 are connected in parallel.

[0287] As a result, the functional water generation system 130 can adjust the ozone concentration of the ozone water generated by each functional water generation device 1 by means of a plurality of functional water generation devices 1 connected in parallel. For example, the functional water generation system 130 can increase the ozone concentration of the ozone water generated by each functional water generation device 1 by increasing the number of functional water generation devices 1 connected in parallel with respect to the supplied water. Further, the functional water generation system 130 can prevent a specific functional water generation device 1 from being continuously exposed to ozone water with a high ozone concentration, and can suppress the progress of deterioration of the specific functional water generation device 1.

[0288] The plurality of functional water generation devices 1 are the same device.

[0289] As a result, the functional water generation system 130 can use the same functional water generation device 1 and can reduce costs.

[0290] The functional water generation system 130 includes a control device 150. The control device 150 controls the generation of functional water in each functional water generation device 1.

[0291] As a result, the functional water generation system 130 can change the ozone concentration of the ozone water discharged to the outflow portions 147 of the downstream connection mechanisms 133 and 165 by changing the number of functional water generation devices 1 in the energized state.

[0292] The control device 150 performs cyclic operation of the plurality of functional water generation devices 1 and switches the functional water generation device 1 that generates ozone water.

[0293] As a result, the functional water generation system 130 can suppress an increase in the cumulative value of the operation time (ozone generation time) in each functional water generation device 1. Therefore, the functional water generation system 130 can extend the life of each functional water generation device 1.

[0294] The functional water generation system 130 includes upstream connection mechanisms 132, 160 and downstream connection mechanisms 133, 165. The upstream connection mechanisms 132, 160 and downstream connection mechanisms 133, 165 connect multiple functional water generation devices 1 at equal intervals.

[0295] As a result, the functional water generation system 130 can connect multiple functional water generators 1 in parallel using common parts. Therefore, the functional water generation system 130 can reduce costs. In addition, the functional water generation system 130 allows for a compact arrangement of multiple functional water generators 1.

[0296] For example, it comprises an upstream connection mechanism 132, a plurality of joint pipes 141, and a connecting pipe 140. The plurality of joint pipes 141 are provided to correspond to a plurality of functional water generators 1 and are connected to the functional water generators 1. The connecting pipe 140 is to which the plurality of joint pipes 141 are connected.

[0297] This allows the functional water generation system 130 to connect multiple functional water generators 1 in parallel using the same joint pipe 141. Therefore, the functional water generation system 130 can reduce costs.

[0298] The functional water generation system 130 may be configured by connecting multiple functional water generators 1 in series, as shown in Figures 33 to 38. Figure 33 is a front view of the modified functional water generation system 130. Figure 34 is a rear view of the modified functional water generation system 130. Figure 35 is a left side view of the modified functional water generation system 130. Figure 36 is a right side view of the modified functional water generation system 130. Figure 37 is a top view of the modified functional water generation system 130. Figure 38 is a bottom view of the modified functional water generation system 130.

[0299] Multiple functional water generators 1 are directly connected without a connecting mechanism. For example, the connection part 63 of one functional water generator 1 is connected to the connection part 70 of another functional water generator 1.

[0300] Multiple functional water generators 1 connected in series produce ozonated water with increasing ozone concentration as you move downstream.

[0301] The functional water generation system 130 can increase the concentration of ozonated water produced by connecting multiple functional water generators 1 in series. The functional water generation system 130 can adjust the ozone concentration of the ozonated water by changing the number of functional water generators 1 connected in series.

[0302] The functional water generator 1 can generate hydrogen water by providing a spacer between the anode plate 10 and the cathode plate 11 without an interlayer membrane 4, and by passing an electric current through, for example, an electrode plate 3 made of titanium plated with platinum. Furthermore, by mixing salt into water upstream of the functional water generator 1, the functional water generator 1 can generate hypochlorous acid water.

[0303] Furthermore, by using the interlayer membrane 4 as a diaphragm to separate the water passage on the anode plate 10 side from the water passage on the cathode plate 11 side, the functional water generator 1 can produce alkaline water and acidic water, and can be used as an alkaline ion water purifier. In addition, by mixing salt with water upstream of the functional water generator 1, the functional water generator 1 can produce hypochlorous acid water.

[0304] Furthermore, according to the above embodiments, for example, the following functional water generating device and cleaning system can be provided.

[0305] <Note> (1) Electrode plate and An electrolytic case is formed which the electrode plate is sandwiched and through which a water passage is formed. Equipped with, The aforementioned electrolytic case is First electrolytic case and A second electrolytic case is assembled to the first electrolytic case in a manner that allows it to be disassembled. A functional water generator equipped with the following features. (2) The functional water generating apparatus according to (1), wherein the first electrolytic case and the second electrolytic case are configured to be divided in the thickness direction of the electrode plate. (3) The functional water generating apparatus according to (1) or (2), wherein the electrode plate is configured such that the length in the water passage direction in the water passage is longer than the length in the direction perpendicular to the water passage direction and the thickness direction of the electrode plate. (4) The first electrolytic case has a first recess formed in the thickness direction of the electrode plate, which matches the shape of the first electrode plate and holds the first electrode plate. The functional water generating apparatus according to any one of (1) to (3), wherein the second electrolytic case has a second recess formed in the thickness direction of the electrode plate to match the shape of the second electrode plate and to hold the second electrode plate. (5) The first recess is formed such that the surface of the first electrode plate on the second electrode plate side and the surrounding surface of the first recess are aligned. The functional water generating apparatus according to (4), wherein the second recess is formed such that the surface of the first electrode plate on the first electrode plate side and the surrounding surface of the second recess are aligned. (6) The functional water generating apparatus according to any one of (1) to (5), wherein the first electrolytic case and the second electrolytic case are fixed by screws at locations adjacent to the four corners of the electrode plate. (7) A first terminal electrically connected to the end of the first electrode plate of the electrode plate, A second terminal electrically connected to the end of the second electrode plate of the electrode plate and A functional water generating device according to any one of (1) to (6), comprising the above. (8) A first holding portion that holds the first terminal so that the first terminal contacts the first electrode plate, A second holding portion that holds the second terminal so that the second terminal contacts the second electrode plate, Equipped with, The functional water generating apparatus according to (7), wherein the first terminal and the second terminal are contact springs. (9) The first electrode plate is provided such that the end to which the first terminal is electrically connected protrudes toward the first terminal more than the second electrode plate. The functional water generating apparatus according to (7) or (8), wherein the second electrode plate is provided such that the end to which the second terminal is electrically connected protrudes toward the second terminal side than the first electrode plate. (10) The aforementioned electrolytic case is A first housing portion that houses a part of the first terminal and restricts the movement of the first terminal in a direction intersecting the extension direction of the first terminal, A second housing portion that accommodates a part of the second terminal and restricts the movement of the second terminal in a direction intersecting the extension direction of the second terminal, A functional water generating device according to any one of (7) to (9), comprising the features described above. (11) Interlayer provided between the electrode plates A functional water generating device according to any one of (1) to (10), comprising the following: (12) The functional water generating apparatus according to (11), wherein the length of the interlayer in the water passage direction is longer than that of the electrode plate in the water passage direction. (13) The functional water generating apparatus according to (11) or (12), wherein one of the first electrolytic case or the second electrolytic case is provided with a plurality of protrusions that project toward the other of the first electrolytic case or the second electrolytic case and hold the interlayer film. (14) The functional water generating apparatus according to (13), wherein the first electrolytic case or the other of the second electrolytic case is provided with a plurality of recesses into which the protrusions are inserted. (15) Outer case that houses and holds the electrolytic case A functional water generating device according to any one of (1) to (14), comprising the above. (16) The aforementioned case is, First external case and, A second outer case is assembled to the first outer case in a detachable manner. Equipped with, The functional water generating apparatus according to (15), wherein the first outer case and the second outer case are configured to be separated in the direction of water flow in the water channel. (17) The outer surface of the outer case is configured to extend along the water flow direction and includes a fixing portion that secures the first outer case and the second outer case, A first terminal electrically connected to the end of the first electrode plate of the electrode plate, A second terminal electrically connected to the end of the second electrode plate of the electrode plate, A first holding portion that holds the first terminal so that the first terminal contacts the first electrode plate, A second holding portion that holds the second terminal so that the second terminal contacts the second electrode plate, Equipped with, The aforementioned fixing part is A first fixing part that holds the first holding part, A second fixing part that holds the second holding part and A functional water generating apparatus as described in (16), comprising: (18) The functional water generating apparatus according to any one of (15) to (17), wherein the outer case is configured to allow water to enter between it and the electrolytic case. (19) The functional water generating apparatus according to any one of (1) to (18), wherein the water passage on the side of one electrode plate that generates the functional substance has a smaller passage area in a cross section perpendicular to the direction of water flow in the water passage than the water passage on the side of the other electrode plate. (20) The electrode plate is positioned such that, when viewed from the direction of water flow in the water channel, it includes the center of the virtual circle of the water channel. The aforementioned water passage has a water passage wall formed at a position opposite the electrode plate. Equipped with, The functional water generating apparatus according to any one of (1) to (19), wherein the water-conducting wall is formed such that, when viewed from the direction of water flow, the length from the water-conducting wall to the electrode plate opposite the water-conducting wall is less than or equal to half the radius of the virtual circle. (twenty one) The aforementioned water passage has a water passage wall formed at a position opposite the electrode plate. Equipped with, The functional water generating device according to any one of (1) to (20), wherein the water-conducting wall is a flat surface. (twenty two) The aforementioned water channel is formed upstream of the water channel wall in the direction of water flow in the water channel, and the upstream inclined wall is connected to the water channel wall. A functional water generating apparatus as described in (21), comprising: (twenty three) The water channel is formed downstream of the water channel wall in the water channel direction and has a downstream inclined wall connected to the water channel wall. A functional water generating apparatus as described in (22), comprising: (twenty four) The functional water generating apparatus according to (23), wherein the angle of inclination of the upstream inclined wall is smaller than the angle of inclination of the downstream inclined wall. (twenty five) The functional water generating apparatus according to any one of (22) to (24), wherein the connection point between the upstream inclined wall and the water-conducting wall is downstream of the upstream end of the electrode plate in the water-conducting direction. (26) The functional water generating apparatus according to (23) or (24), wherein the connection point between the downstream inclined wall and the water-conducting wall is downstream of the downstream end of the electrode plate in the water-conducting direction. (27) (11) The functional water generating device described above, Among the electrode plates of the functional water generating apparatus, a supply pipe is connected to the water passage on the electrode plate side that generates functional water and supplies the functional water to the object to be cleaned, A discharge pipe through which wastewater discharged from the object to be cleaned flows, Among the electrode plates of the functional water generator, a bypass pipe is connected to the water passage on the side of the electrode plate that generates the functional water, bypasses the object to be washed, and is connected to the discharge pipe. A cleaning system equipped with the following features. (28) The cleaning system according to (27), wherein the functional water generating device generates ozonated water as the functional water. (29) A first removal device having a reverse osmosis membrane is provided upstream of the functional water generating device, A second removal device is provided upstream of the first removal device and has a chlorine adsorbent. Equipped with, The cleaning system according to (28), wherein the functional water generating device is supplied with water that has passed through the second removal device and the first removal device. (30) A removal device having an ion exchange resin material, provided upstream of the aforementioned functional water generating device. Equipped with, The cleaning system according to (28), wherein the functional water generating device is supplied with water that has passed through the removal device.

[0306] Further effects and modifications can be readily derived by those skilled in the art. Therefore, broader aspects of the present invention are not limited to the specific details and representative embodiments expressed and described above. Accordingly, various modifications are possible without departing from the spirit or scope of the overall concept of the invention as defined by the appended claims and their equivalents.

[0307] The functional water generating device 1, cleaning system 110, and functional water generating system 130 according to the present invention can contribute to Goal 3 (Good Health and Well-being for All) of the United Nations' Sustainable Development Goals (SDGs). [Explanation of Symbols]

[0308] 1 Functional water generator 2. Functional water generation unit 3 Electrode plate 4 Interlayer 5 1st terminal 6 2nd terminal 7. First electrode pin (first retaining part) 8. Second electrode pin (second retaining part) 9 Electrolytic Cases 10 Anode plate (first electrode plate) 10a end 11 Cathode plate (second electrode plate) 11a End 20 First electrolytic case 21 Second Electrolytic Case 22 1st waterway 24a, 40a Upstream inclined wall 25a, 41a Water wall 26a, 42a Downstream sloped wall 30 Electrode housing section (first recess) 34 Protrusion 38 2nd waterway 46 Electrode housing section (second recess) 49 recess 55 Canal 55a Virtual Yen 56. First Detention Unit 57 Second Detention Unit 60 outer cases 61. First Outer Case 62. Second Outer Case 80 Fixed part 81 1st fixed part 82 Second fixed part 83 Protrusion 110 Cleaning System 111 Supply pipe 112 Discharge pipe 113 Bypass pipe 121 1st removal device 122 Second removal device 123 Removal device 130 Functional Water Generation System 131 Connection mechanism 140, 145, 161, 166 connecting pipes 141, 146 Joint pipes 144 Adjustment section 150 Control device

Claims

1. Electrode plate and An electrolytic case is formed which the electrode plate is sandwiched and through which a water passage is formed. Equipped with, The aforementioned electrolytic case is First electrolytic case and A second electrolytic case is assembled to the first electrolytic case in a manner that allows it to be disassembled. A functional water generator equipped with the following features.

2. The functional water generating apparatus according to claim 1, wherein the first electrolytic case and the second electrolytic case are configured to be divided in the thickness direction of the electrode plate.

3. The functional water generating apparatus according to claim 1, wherein the electrode plate is configured such that the length in the water passage direction in the water passage is longer than the length in the direction perpendicular to the water passage direction and the thickness direction of the electrode plate.

4. The first electrolytic case has a first recess formed in the thickness direction of the electrode plate, which matches the shape of the first electrode plate and holds the first electrode plate. The functional water generating apparatus according to claim 1, wherein the second electrolytic case has a second recess formed therein in the thickness direction of the electrode plate, corresponding to the shape of the second electrode plate, and holding the second electrode plate.

5. The first recess is formed such that the surface of the first electrode plate on the second electrode plate side and the surrounding surface of the first recess are aligned. The functional water generating apparatus according to claim 4, wherein the second recess is formed such that the surface of the first electrode plate on the first electrode plate side and the surrounding surface of the second recess are aligned.

6. The functional water generating apparatus according to claim 1, wherein the first electrolytic case and the second electrolytic case are fixed by screws at locations adjacent to the four corners of the electrode plate.

7. A first terminal electrically connected to the end of the first electrode plate of the electrode plate, A second terminal electrically connected to the end of the second electrode plate of the electrode plate and A functional water generating device according to claim 1, comprising:

8. A first holding portion that holds the first terminal so that the first terminal contacts the first electrode plate, A second holding portion that holds the second terminal so that the second terminal contacts the second electrode plate, Equipped with, The functional water generating apparatus according to claim 7, wherein the first terminal and the second terminal are contact springs.

9. The first electrode plate is provided such that the end to which the first terminal is electrically connected protrudes toward the first terminal more than the second electrode plate. The functional water generating apparatus according to claim 7, wherein the end of the second electrode plate to which the second terminal is electrically connected protrudes toward the second terminal side than the first electrode plate.

10. The aforementioned electrolytic case is A first housing portion that houses a part of the first terminal and restricts the movement of the first terminal in a direction intersecting the extending direction of the first terminal, A second housing portion that accommodates a part of the second terminal and restricts the movement of the second terminal in a direction intersecting the extension direction of the second terminal, A functional water generating device according to claim 7, comprising:

11. Interlayer provided between the electrode plates A functional water generating device according to claim 1, comprising:

12. The functional water generating apparatus according to claim 11, wherein the length of the interlayer in the water passage direction is longer than that of the electrode plate in the water passage direction.

13. The functional water generating apparatus according to claim 11, wherein one of the first electrolytic case or the second electrolytic case is provided with a plurality of protrusions that project toward the other of the first electrolytic case or the second electrolytic case and hold the interlayer film.

14. The functional water generating apparatus according to claim 13, wherein the first electrolytic case or the other of the second electrolytic case is provided with a plurality of recesses into which the protruding portion is inserted.

15. Outer case that houses and holds the electrolytic case A functional water generating device according to claim 1, comprising:

16. The aforementioned case is, First outer case and, A second outer case is assembled to the first outer case in a detachable manner. Equipped with, The functional water generating apparatus according to claim 15, wherein the first outer case and the second outer case are configured to be divided in the direction of water flow in the water channel.

17. The outer surface of the outer case is configured to extend along the water flow direction and includes a fixing portion that secures the first outer case and the second outer case, A first terminal electrically connected to the end of the first electrode plate of the electrode plate, A second terminal electrically connected to the end of the second electrode plate of the electrode plate, A first holding portion that holds the first terminal so that the first terminal contacts the first electrode plate, A second holding portion that holds the second terminal so that the second terminal contacts the second electrode plate, Equipped with, The aforementioned fixing part is A first fixing part that holds the first holding part, A second fixing part that holds the second holding part and A functional water generating device according to claim 16, comprising the features described above.

18. The functional water generating apparatus according to claim 15, wherein the outer case is configured to allow water to enter between it and the electrolytic case.

19. The functional water generating apparatus according to claim 1, wherein the water passage on the side of one electrode plate that generates the functional substance has a smaller passage area in a cross section perpendicular to the direction of water flow in the water passage than the water passage on the side of the other electrode plate.

20. The electrode plate is positioned such that, when viewed from the direction of water flow in the water channel, it includes the center of the virtual circle of the water channel. The aforementioned water passage has a water passage wall formed at a position opposite the electrode plate. Equipped with, The functional water generating apparatus according to claim 1, wherein the water-conducting wall is formed such that, when viewed from the direction of water flow, the length from the water-conducting wall to the electrode plate opposite the water-conducting wall is less than or equal to half the radius of the virtual circle.

21. The aforementioned water passage has a water passage wall formed at a position opposite the electrode plate. Equipped with, The functional water generating apparatus according to claim 1, wherein the water-conducting wall is a flat surface.

22. The aforementioned water channel is formed upstream of the water channel wall in the direction of water flow in the water channel, and the upstream inclined wall is connected to the water channel wall. A functional water generating device according to claim 21, comprising:

23. The water channel is formed downstream of the water channel wall in the water channel direction and has a downstream inclined wall connected to the water channel wall. A functional water generating device according to claim 22, comprising:

24. The functional water generating apparatus according to claim 23, wherein the angle of inclination of the upstream inclined wall is smaller than the angle of inclination of the downstream inclined wall.

25. The functional water generating apparatus according to claim 22, wherein the connection point between the upstream inclined wall and the water-conducting wall is downstream of the upstream end of the electrode plate in the water-conducting direction.

26. The functional water generating apparatus according to claim 23, wherein the connection point between the downstream inclined wall and the water-conducting wall is located downstream of the downstream end of the electrode plate in the water-conducting direction.

27. A functional water generating device according to claim 11, Among the electrode plates of the functional water generating apparatus, a supply pipe is connected to the water passage on the electrode plate side that generates functional water and supplies the functional water to the object to be cleaned, A discharge pipe through which wastewater discharged from the object to be cleaned flows, Among the electrode plates of the functional water generator, a bypass pipe is connected to the water passage on the side of the electrode plate that generates the functional water, bypasses the object to be washed, and is connected to the discharge pipe. A cleaning system equipped with the following features.

28. The cleaning system according to claim 27, wherein the functional water generating device generates ozonated water as the functional water.

29. A first removal device having a reverse osmosis membrane is provided upstream of the aforementioned functional water generating device. A second removal device is provided upstream of the first removal device and has a chlorine adsorbent. Equipped with, The cleaning system according to claim 28, wherein the functional water generating device is supplied with water that has passed through the second removal device and the first removal device.

30. A removal device having an ion exchange resin material, provided upstream of the aforementioned functional water generating device. Equipped with, The cleaning system according to claim 28, wherein the functional water generating device is supplied with water that has passed through the removal device.

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