Electrolytic liquid generation apparatus

Abstract

To reduce the positional deviation of an electrolysis unit.SOLUTION: An electrolytic liquid generation apparatus 100 comprises an electrolysis unit 1, a housing 3, and a power supply unit 4. The power supply unit 4 includes an electrode pin 41 and electrode plates 42A and 42B. The electrode pin 41 has a shaft 413 shorter than a flange 411 in a second direction D2. The length of the flange 411 in the second direction D2 is longer than the opening length of a first open hole 421 in the second direction D2. With the centers of the flange 411, the first open hole 421, and a second open hole aligned, a first clearance between the shaft 413 and the first open hole 421 in the second direction D2 is larger than a second clearance between the shaft 413 and the second open hole in the second direction D2.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates generally to an electrolytic liquid generating device, and more particularly to an electrolytic liquid generating device including an electrolytic unit that electrolytically processes a liquid. [Background technology]

[0002] Patent Document 1 describes an electrolytic water generating device including a laminated structure and a housing. The laminated structure includes an anode, an ion exchange membrane, and a cathode. A power supply shaft is connected to each of the anode and the cathode via a spring portion. In the electrolytic water generating device described in Patent Document 1, the laminated structure is accommodated in the housing, and then the laminated structure is fixed to the housing by fastening nuts to each power supply shaft. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-011177 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the electrolytic water generating device (electrolytic liquid generating device) described in Patent Document 1, the power supply shaft (electrode pin) and the spring portion are formed integrally, and therefore, the anode or cathode (electrolytic portion) may become misaligned due to the displacement in the rotational direction that occurs when the power supply shaft is fastened.

[0005] An object of the present disclosure is to provide an electrolytic liquid generating device capable of reducing positional deviation of the electrolysis unit. [Means for solving the problem]

[0006] The electrolytic liquid generating device according to one aspect of the present disclosure includes an electrolytic unit, a housing, and a power supply unit. The electrolytic unit electrolyzes a liquid. The electrolytic unit is disposed inside the housing. The power supply unit supplies the electrolytic unit with power for electrolytically processing the liquid. The power supply unit includes an electrode pin and an electrode plate. The electrode pin is elongated in a first direction, which is a stacking direction of the electrolytic unit, and has a flange portion at a first end in the first direction, and a screw portion is provided in a predetermined range including a second end opposite to the first end in the first direction. The electrode plate has a first through hole through which the electrode pin is inserted, and is electrically connected to the electrolytic unit. The housing has a second through hole through which the electrode pin inserted into the first through hole of the electrode plate is inserted. The electrode pin has a shaft portion whose length in a second direction perpendicular to the first direction is shorter than that of the flange portion. The length of the flange portion in the second direction is longer than the opening length of the first through hole in the second direction. When the center of the flange portion, the center of the first through hole, and the center of the second through hole are aligned, a first clearance between the shaft portion and the first through hole in the second direction is larger than a second clearance between the shaft portion and the second through hole in the second direction.

[0007] An electrolytic liquid generating device according to another aspect of the present disclosure includes an electrolytic unit, a housing, and a power supply unit. The electrolytic unit electrolyzes a liquid. The housing has the electrolytic unit disposed therein. The power supply unit supplies the electrolytic unit with power for electrolyzing the liquid. The power supply unit includes an electrode pin and an electrode plate. The electrode pin is elongated in a first direction, which is a stacking direction of the electrolytic unit, and has a flange portion at a first end in the first direction, and a screw portion is provided in a predetermined range including a second end opposite to the first end in the first direction. The electrode plate has a first through hole through which the electrode pin is inserted, and is electrically connected to the electrolytic unit. The housing has a second through hole through which the electrode pin inserted into the first through hole of the electrode plate is inserted. The electrode pin has a shaft portion whose length in a second direction perpendicular to the first direction is shorter than that of the flange portion. The length of the flange portion in the second direction is longer than a first opening length of the first through hole in the second direction. The first opening length and the second opening length of the second through hole in the second direction are longer than a length of the shaft portion in the second direction. The first opening length is longer than the second opening length. Effect of the Invention

[0008] According to an electrolytic liquid generating device according to one aspect of the present disclosure, it is possible to reduce positional deviation of the electrolysis unit. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is an exploded perspective view of an electrolytic liquid generating device according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view showing a main part of the above-mentioned electrolytic solution generating device. [Diagram 3] FIG. 3 is a plan view of the electrolytic liquid generating device with the lid removed. [Figure 4] FIG. 4 is a cross-sectional view of the electrolytic liquid generating device taken along line X1-X1 of FIG. [Diagram 5]FIG. 5 is a cross-sectional view of the electrolytic liquid generating device taken along line X2-X2 of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the electrolytic liquid generating device according to the embodiment will be described with reference to the drawings. Each figure described in the following embodiment is a schematic diagram, and the size and thickness ratio of each component do not necessarily reflect the actual dimensional ratio. In addition, the configuration described in the following embodiment is only one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0011] (Embodiment) (1) Overview First, an overview of an electrolytic liquid generating device 100 according to an embodiment will be described with reference to FIG.

[0012] The electrolytic liquid generating device 100 according to the embodiment generates an electrolytic liquid by subjecting a liquid to electrolytic processing. In the present embodiment, as an example, the electrolytic liquid generating device 100 is an ozone water generating device that uses tap water supplied from a waterworks as the liquid and generates ozone water as the electrolytic liquid. The electrolytic liquid generating device 100, which is an ozone water generating device, generates ozone (electrolysis product) by electrolytic processing that electrolyzes tap water, and generates ozone water by dissolving the ozone in the tap water. Ozone water is effective for sterilization, deodorization, and decomposition of organic matter, and is therefore widely used in various fields such as water treatment, hygiene, food, and medicine.

[0013] As shown in FIG. 1, the electrolytic liquid generating device 100 according to the embodiment includes an electrolytic unit 1, a housing 3, and a power supply unit 4. The electrolytic unit 1 electrolyzes a liquid. The electrolytic unit 1 is disposed inside the housing 3. The power supply unit 4 supplies the electrolytic unit 1 with power for electrolyzing the liquid. The power supply unit 4 includes a plurality of (two in the illustrated example) electrode pins 41, a plurality of (two in the illustrated example) nuts 45, and a plurality of (two in the illustrated example) electrode plates 42A, 42B. Each of the plurality of electrode pins 41 is elongated in a first direction D1, which is the lamination direction of the electrolytic unit 1, and is provided with a flange portion 411 at a first end (upper end in FIG. 1) in the first direction D1, and a screw portion 412 is provided in a predetermined range including a second end (lower end in FIG. 1) opposite to the first end in the first direction D1. Each of the multiple nuts 45 is screwed into the threaded portion 412 of the corresponding electrode pin 41 among the multiple electrode pins 41. Each of the multiple electrode plates 42A, 42B has a first through hole 421 through which the corresponding electrode pin 41 is inserted, and is electrically connected to the electrolysis unit 1.

[0014] The housing 3 has a plurality of second through holes 3112 (see FIG. 2) through which the electrode pins 41 inserted into the first through holes 421 of the electrode plates 42A, 42B are inserted. Each electrode pin 41 has a shaft portion 413 whose length L2 (see FIG. 4) in a second direction D2 perpendicular to the first direction D1 is shorter than that of the flange portion 411. The length L1 (see FIG. 4) of the flange portion 411 in the second direction D2 is longer than the opening length L3 (see FIG. 4) of the first through hole 421 in the second direction D2. When the center P1 (see Figure 4) of the flange portion 411, the center P2 (see Figure 4) of the first through hole 421, and the center P3 (see Figure 5) of the second through hole 3112 are aligned, the first clearance C1 (see Figure 4) between the shaft portion 413 and the first through hole 421 in the second direction D2 is larger than the second clearance C2 (see Figure 5) between the shaft portion 413 and the second through hole 3112 in the second direction D2.

[0015] In the electrolytic liquid generating device 100 according to the embodiment, the first clearance C1 is larger than the second clearance C2 in a state where the center P1 of the flange portion 411, the center P2 of the first through hole 421, and the center P3 of the second through hole 3112 are aligned. This allows the force transmitted to the electrode pin 41 when the nut 45 is screwed into the electrode pin 41 to be received by the opening edge of the second through hole 3112, making it possible to prevent the electrode pin 41 from coming into contact with the opening edge of the first through hole 421. As a result, it is possible to prevent the force from being transmitted to the electrode plates 42A and 42B, and the positional deviation of the electrode plates 42A and 42B is suppressed, making it possible to reduce the positional deviation of the electrolytic unit 1 that is integrated with the electrode plates 42A and 42B.

[0016] (2) Details Next, the details of the electrolytic liquid generating device 100 according to the embodiment will be described with reference to Figs. 1 to 5. In the following description, the longitudinal direction of the electrode pins 41, i.e., the lamination direction of the electrolytic section 1, is defined as a first direction D1, the short side direction (width direction) of the housing 3, i.e., the electrolyte flow direction (or flow path direction) is defined as a second direction D2, and the longitudinal direction of the housing 3 is defined as a third direction D3. However, these directions are not intended to limit the directions in which the electrolytic liquid generating device 100 is used. Also, the arrows indicating "D1", "D2", and "D3" in the drawings are merely indicated for the purpose of explanation, and none of them have any substance.

[0017] The electrolytic liquid generating apparatus 100 according to the first embodiment includes an electrolysis section 1, an elastic body 2, a housing 3, a power supply section 4, and a plurality of O-rings 5 ​​(two in the illustrated example), as shown in FIG.

[0018] (2.1) Electrolytic section The electrolysis unit 1 electrolyzes a liquid. More specifically, the electrolysis unit 1 generates ozone water as an electrolytic liquid by electrolysis of tap water as the liquid. As shown in FIG. 1, the electrolysis unit 1 includes a cathode 11, a conductive film 12, and an anode 13.

[0019] The cathode 11 is formed of, for example, a titanium alloy in a rectangular plate shape having a thickness of about 0.3 mm. More specifically, the cathode 11 is formed in a rectangular plate shape that is longer in the third direction D3 than in the second direction D2. The cathode 11 has a plurality of through holes 111. Each of the plurality of through holes 111 penetrates the cathode 11 in a thickness direction (first direction D1). Each of the plurality of through holes 111 is V-shaped in a plan view from the first direction D1. The plurality of through holes 111 are arranged at equal intervals along the longitudinal direction (third direction D3) of the cathode 11. An electrode plate 42A described later is integrally formed at one end (the right end in FIG. 1) of the cathode 11 in the third direction D3 via a spring portion 43A described later.

[0020] The conductive film 12 is, for example, a proton conductive ion exchange filter having a thickness of about 100 to 200 μm. As shown in FIG. 1, the conductive film 12 is formed in a comb shape when viewed from a plane in the first direction D1. The conductive film 12 includes a main piece 121 and a plurality of protruding pieces 122. The main piece 121 is elongated with the third direction D3 as a longitudinal direction. Each of the plurality of protruding pieces 122 protrudes along the second direction D2 from one end of the main piece 121 in the second direction D2. The plurality of protruding pieces 122 are arranged at equal intervals along the third direction D3.

[0021] The anode 13 is formed, for example, by forming a conductive diamond film on a conductive substrate made of silicon. The anode 13 is formed in a rectangular plate shape that is longer in the third direction D3 than in the second direction D2, as shown in Fig. 1. In this embodiment, the cathode 11, the conductive film 12, and the anode 13 form a laminate in which the anode 13, the conductive film 12, and the cathode 11 are stacked in this order in the first direction D1.

[0022] (2.2) Elastic body The electrolysis unit 1 is laminated on the elastic body 2. The elastic body 2 is formed in a rectangular parallelepiped shape using an elastic material such as rubber. As shown in Fig. 1, the elastic body 2 includes a main body 21, a plurality of (six in the illustrated example) first positioning units 22, and a plurality of (two in the illustrated example) second positioning units 23.

[0023] As shown in Fig. 1, the main body 21 is formed in a rectangular parallelepiped shape that is longer in the third direction D3 than in the second direction D2. That is, the elastic body 2 is elongated in the third direction D3 that is perpendicular to the first direction D1, which is the stacking direction of the electrolysis unit 1 and the elastic body 2. The main body 21 has an upper surface 212 on which the electrolysis unit 1 is stacked. The upper surface 212 is formed in a rectangular shape that is longer in the third direction D3 than in the second direction D2 in a plan view from the first direction D1. That is, the elastic body 2 has an upper surface 212 on which the electrolysis unit 1 is stacked.

[0024] As shown in FIG. 1, the multiple first positioning parts 22 are arranged on both sides of the upper surface 212 in the second direction D2. More specifically, three of the six first positioning parts 22 are arranged at equal intervals along the third direction D3 on one end side of the upper surface 212 in the second direction D2. The remaining three of the six first positioning parts 22 are arranged at equal intervals along the third direction D3 on the other end side of the upper surface 212 in the second direction D2. Furthermore, the six first positioning parts 22 are arranged on the outside of the upper surface 212 in the second direction D2. Each of the multiple first positioning parts 22 is composed of a protruding part that protrudes along the first direction D1. In this way, by providing the multiple first positioning parts 22, it is possible to position the electrolysis unit 1 in the second direction D2 with respect to the elastic body 2.

[0025] As shown in FIG. 1, the second positioning parts 23 are arranged on both sides of the upper surface 212 in the third direction D3. More specifically, the two second positioning parts 23 are arranged on the outer side of the upper surface 212 in the third direction D3. One of the two second positioning parts 23 is arranged almost in the center in the second direction D2. The other of the two second positioning parts 23 is arranged on one end side in the second direction D2. In this way, by making the positions of the two second positioning parts 23 different, it is possible to reduce installation errors of the elastic body 2 to the case 31 of the housing 3. Each of the second positioning parts 23 is composed of a protruding part that protrudes along the first direction D1. In this way, by providing the second positioning parts 23, it is possible to position the electrolysis unit 1 in the third direction D3 with respect to the elastic body 2.

[0026] (2.3) Housing The electrolysis unit 1 and the elastic body 2 are disposed inside the housing 3. As shown in Fig. 1, the housing 3 includes a case 31 and a lid 32. The case 31 and the lid 32 are formed of a non-conductive material such as an acrylic resin.

[0027] The case 31 includes a case body 311, a first connection portion 312, and a second connection portion 313. The case body 311 is formed in a hollow rectangular parallelepiped shape with one surface (the upper surface in FIG. 1) open. That is, the case body 311 has an opening 3111. The case body 311 further has a storage portion 3110. The electrolysis portion 1 and the elastic body 2 are stored in the storage portion 3110. That is, the case 31 has an opening 3111, and the electrolysis portion 1 and the elastic body 2 are stored through the opening 3111.

[0028] 2, the case body 311 has a plurality of second through holes 3112 (only one is shown in the illustrated example). Each of the plurality of second through holes 3112 penetrates the bottom surface 3113 of the case body 311 in the thickness direction of the bottom surface 3113. The plurality of second through holes 3112 are aligned in the third direction D3. An electrode pin 41 is inserted into each of the second through holes 3112. That is, the housing 3 has two second through holes 3112 through which the two electrode pins 41 inserted into the two electrode plates 42A, 42B, respectively, are inserted.

[0029] The first connection part 312 is provided at a first end of the case body 311 in the third direction D3. The first connection part 312 is connected to a pipe through which tap water flows as the liquid, and guides the tap water into the case body 311. The second connection part 313 is provided at a second end (the end opposite to the first end) of the case body 311 in the third direction D3. The second connection part 313 is connected to an inlet of a liquid outlet path, and guides ozone water as the electrolytic liquid produced in the electrolysis unit 1 to the liquid outlet path.

[0030] The lid body 32 is attached to the case 31 so as to close the opening 3111 of the case 31. As shown in FIG. 1, the lid body 32 is formed in a rectangular plate shape that is longer in the third direction D3 than in the second direction D2. The lid body 32 holds the electrolysis unit 1 between itself and the elastic body 2 in a state in which the lid body 32 is attached to the case 31. At this time, the electrolysis unit 1 receives an elastic force from the lid body 32 side from the elastic body 2, and is in close contact with the elastic body 2 and the lid body 32 due to this elastic force.

[0031] (2.4) Power supply section The power supply unit 4 supplies power for electrolyzing the liquid to the electrolysis unit 1. As shown in Fig. 1, the power supply unit 4 includes a plurality of (two in the illustrated example) electrode pins 41, a plurality of (two in the illustrated example) electrode plates 42A, 42B, a plurality of (two in the illustrated example) spring portions 43A, 43B, a power supply body 44, a plurality of (two in the illustrated example) nuts 45, a plurality of (two in the illustrated example) spring washers 46, and a plurality of (two in the illustrated example) washers 47. The electrode pins 41, the nuts 45, the spring washers 46, and the washers 47 are in one-to-one correspondence.

[0032] Each of the electrode pins 41 is elongated in the first direction D1. That is, the longitudinal direction of each electrode pin 41 is parallel to the first direction D1. Each electrode pin 41 has a flange portion 411, a threaded portion 412, and a shaft portion 413. In each electrode pin 41, the flange portion 411 is provided at a first end (upper end in FIG. 1) in the first direction D1. In each electrode pin 41, the threaded portion 412 is provided in a predetermined range including a second end (lower end in FIG. 1) in the first direction D1.

[0033] Each of the multiple electrode plates 42A, 42B is formed in a rectangular frame shape in a plan view from the first direction D1. That is, each of the electrode plates 42A, 42B has a first through hole 421 penetrating each of the electrode plates 42A, 42B in the thickness direction (first direction D1) of each of the electrode plates 42A, 42B. The electrode pin 41 is inserted into the first through hole 421. The electrode plate 42A is integrally formed with the cathode 11 via the spring portion 43A. The electrode plate 42B is integrally formed with the power supply body 44 via the spring portion 43B. That is, the electrode plates 42A, 42B are electrically connected to the electrolysis unit 1. Here, the material of the electrode plate 42A and the spring portion 43A is the same titanium alloy as that of the cathode 11. The material of the electrode plate 42B and the spring portion 43B is the same titanium alloy as that of the power supply body 44. The material of each electrode pin 41 is the same titanium alloy as that of the electrode plate 42A.

[0034] The spring portion 43A has elasticity and connects between the cathode 11 of the electrolysis unit 1 and the electrode plate 42A. As shown in FIG. 3, the spring portion 43A includes a first portion 431, a second portion 432, and a third portion 433. The first portion 431 is formed in a plate shape with the second direction D2 as a longitudinal direction. Each of the second portion 432 and the third portion 433 is formed in a plate shape with the third direction D3 as a longitudinal direction. A first end of the first portion 431 is connected to the electrode plate 42A, and a second end of the first portion 431 is connected to a first end of the second portion 432. A second end of the second portion 432 is connected to a first end of the third portion 433, and a second end of the third portion 433 is connected to the cathode 11. The spring portion 43A is arranged so that the electrode plate 42A, the second portion 432, and the third portion 433 are aligned in the second direction D2.

[0035] The spring portion 43B has elasticity and connects between the power supply body 44 and the electrode plate 42B. As shown in FIG. 3, the spring portion 43B includes a fourth portion 434, a fifth portion 435, and a sixth portion 436. Each of the fourth portion 434 and the sixth portion 436 is formed in a plate shape with the third direction D3 as a longitudinal direction. The fifth portion 435 is formed in a plate shape with the second direction D2 as a longitudinal direction. A first end of the fourth portion 434 is connected to the electrode plate 42B, and a second end of the fourth portion 434 is connected to a first end of the fifth portion 435. A second end of the fifth portion 435 is connected to a first end of the sixth portion 436, and a second end of the sixth portion 436 is connected to the power supply body 44. The spring portion 43B is formed in a U-shape in a plan view from the first direction D1. The spring portion 43B is disposed such that a fourth portion 434, a fifth portion 435, and a sixth portion 436 surround the electrode plate 42B.

[0036] The power supply body 44 is formed in a rectangular plate shape using, for example, a titanium alloy. More specifically, the power supply body 44 is formed in a rectangular plate shape that is longer in the third direction D3 than in the second direction D2, as shown in FIG. 1. Specifically, the power supply body 44 has the same size as the anode 13 in a plan view from the first direction D1. The power supply body 44 is disposed between the anode 13 and the elastic body 2 in the first direction D1. As described above, the electrode plate 42B is integrally formed with one end of the power supply body 44 in the third direction D3 via the spring portion 43B.

[0037] Each of the plurality of nuts 45 is screwed onto the threaded portion 412 of the corresponding one of the plurality of electrode pins 41. Each of the plurality of spring washers 46 and the plurality of washers 47 is inserted into the corresponding one of the plurality of electrode pins 41.

[0038] (2.5) O-ring 2, each of the multiple O-rings 5 ​​is attached to the case 31 so as to close a corresponding one of the multiple second through holes 3112. More specifically, each O-ring 5 is inserted into a corresponding one of the multiple electrode pins 41, and then attached to the case 31 so as to close the corresponding second through hole 3112. In a state in which a nut 45 is screwed onto the corresponding electrode pin 41 and the electrolysis unit 1 is fixed to the case 31, a force from the case 31 is applied to each O-ring 5, and the O-ring 5 is pressed against the bottom surface 3113 of the case 31.

[0039] (3) Structure Next, the structure of the main parts of the electrolytic liquid generating device 100 according to the embodiment will be described with reference to FIGS.

[0040] Fig. 4 is a cross-sectional view showing the flange portion 411 and shaft portion 413 of the electrode pin 41, and the first through hole 421 of the electrode plate 42B. Fig. 5 is a cross-sectional view showing the shaft portion 413 of the electrode pin 41 and the second through hole 3112 of the case 31. Note that the flange portion 411 of the electrode pin 41, the shaft portion 413, the first through hole 421 of the electrode plate 42A, and the second through hole 3112 of the case 31 are similar to the flange portion 411 of the electrode pin 41, the shaft portion 413, the first through hole 421 of the electrode plate 42B, and the second through hole 3112 of the case 31, and therefore a description thereof will be omitted here.

[0041] The shaft portion 413 of the electrode pin 41 has a circumferential surface extending in the first direction D1, including two flat surfaces 4131 facing each other in the second direction D2 (the vertical direction in FIG. 4) and two curved surfaces 4132 facing each other in the third direction D3 (the horizontal direction in FIG. 4). That is, both ends of the shaft portion 413 in the second direction D2 are two flat surfaces 4131 intersecting (orthogonal to) the second direction D2. In addition, the shaft portion 413 has a shape like an oval track, which is composed of two parallel lines of equal length and two semicircles, when viewed from the first direction D1. Note that, in the shaft portion 413 of the electrode pin 41, the length of the shaft portion 413 in the third direction D3 is longer than the length L2 of the shaft portion 413 in the second direction D2.

[0042] As shown in FIG. 4, the first through hole 421 of the electrode plate 42B is formed to have a size that allows the shaft portion 413 of the electrode pin 41 to be inserted therethrough, but does not allow the flange portion 411 of the electrode pin 41 to be inserted therethrough. Moreover, the opening edge (inner edge) of the first through hole 421 is similar to the outer shape of the shaft portion 413 in a plan view from the first direction D1. Therefore, as shown in FIG. 4, the length L2 of the shaft portion 413 in the second direction D2 is shorter than the length L1 of the flange portion 411 in the second direction D2. Moreover, the length L1 of the flange portion 411 in the second direction D2 is longer than the first opening length L3 of the first through hole 421 in the second direction D2. Moreover, the first opening length L3 of the first through hole 421 in the second direction D2 is longer than the length L2 of the shaft portion 413 in the second direction D2.

[0043] 5, the second through hole 3112 of the case 31 has a size that allows the shaft portion 413 of the electrode pin 41 to be inserted therethrough. Moreover, the opening edge (inner edge) of the second through hole 3112 is similar to the outer shape of the shaft portion 413 in a plan view from the first direction D1. Therefore, as shown in FIG. 5, the second opening length L4 of the second through hole 3112 of the case 31 in the second direction D2 is longer than the length L2 of the shaft portion 413 of the electrode pin 41 in the second direction D2.

[0044] 4 and 5, in terms of the relative relationship with the shaft portion 413, the first opening length L3 of the first through hole 421 of the electrode plate 42B is longer than the second opening length L4 of the second through hole 3112 of the case 31. In addition, the first opening length L3 and the second opening length L4 are longer than the length L2 of the shaft portion 413 in the second direction D2.

[0045] Furthermore, as shown in Figures 4 and 5, when the center P1 of the flange portion 411 of the electrode pin 41, the center P2 of the first through hole 421 of the electrode plate 42B, and the center P3 of the second through hole 3112 of the case 31 are aligned, the first clearance C1 between the shaft portion 413 and the first through hole 421 in the second direction D2 is larger than the second clearance C2 between the shaft portion 413 and the second through hole 3112 in the second direction D2.

[0046] Here, the first clearance C1 and the second clearance C2 refer to the distance between the same surface (the lower flat surface 4131 in the illustrated example) in the shaft portion 413 and the opposing surface (the lower surface in the illustrated example) opposing the same surface in each of the through holes 421, 3112, as shown in Fig. 4 and Fig. 5. Furthermore, by comparing the minimum value of the first clearance C1 with the maximum value of the second clearance C2, it is preferable that the first clearance C1 is larger than the second clearance C2. In other words, it is preferable that the first clearance C1 is the minimum clearance among the clearances over the entire circumference between the shaft portion 413 and the first through hole 421, and the second clearance C2 is the maximum clearance among the clearances over the entire circumference between the shaft portion 413 and the second through hole 3112. In short, the "maximum clearance" is the widest clearance among the clearances around the entire circumference between the shaft portion 413 and the second through hole 3112, and the "minimum clearance" is the narrowest clearance among the clearances around the entire circumference between the shaft portion 413 and the first through hole 421.

[0047] Incidentally, in a state in which the electrolysis unit 1 is attached to the housing 3 using the electrode pin 41 and the nut 45 of the power supply unit 4, as shown in Fig. 3, the spring portion 43A is arranged so as not to overlap with the flange portion 411 of the electrode pin 41 in a plan view from the first direction D1. This makes it possible to prevent the flange portion 411 from hindering the deformation of the spring portion 43A. Also, as shown in Fig. 3, the spring portion 43B is arranged so as not to overlap with the flange portion 411 of the electrode pin 41 in a plan view from the first direction D1. This makes it possible to prevent the flange portion 411 from hindering the deformation of the spring portion 43B.

[0048] (4) Effects In the electrolytic liquid generating device 100 according to the embodiment, the first clearance C1 is larger than the second clearance C2 in a state where the center P1 of the flange portion 411, the center P2 of the first through hole 421, and the center P3 of the second through hole 3112 are aligned. This allows the force transmitted to the electrode pin 41 when the nut 45 is screwed into the electrode pin 41 to be received by the opening edge of the second through hole 3112, making it possible to prevent the electrode pin 41 from coming into contact with the opening edge of the first through hole 421. As a result, it is possible to prevent the force from being transmitted to the electrode plates 42A and 42B, and the positional deviation of the electrode plates 42A and 42B is suppressed, making it possible to reduce the positional deviation of the electrolytic unit 1 that is integrated with the electrode plates 42A and 42B.

[0049] Furthermore, by reducing the positional deviation of the electrolysis unit 1, it is possible to suppress the decrease in the electrolysis area, and as a result, it is possible to suppress the decrease in the generation efficiency of the electrolytic liquid produced in the electrolysis unit 1.

[0050] Furthermore, in the electrolytic liquid generating apparatus 100 according to this embodiment, the first clearance C1 is the smallest clearance among the clearances over the entire circumference between the shaft portion 413 and the first through hole 421, and the second clearance C2 is the largest clearance among the clearances over the entire circumference between the shaft portion 413 and the second through hole 3112. This makes it possible to further reduce the positional deviation of the electrolysis unit 1.

[0051] In the electrolytic liquid generating device 100 according to the embodiment, the first opening length L3 and the second opening length L4 are longer than the length L2 of the shaft portion 413, and the first opening length L3 is longer than the second opening length L4. This allows the force transmitted to the electrode pin 41 when the nut 45 is screwed onto the electrode pin 41 to be received by the opening edge of the second through hole 3112, making it possible to prevent the electrode pin 41 from coming into contact with the opening edge of the first through hole 421. As a result, it is possible to prevent the force from being transmitted to the electrode plates 42A and 42B, and by preventing the positional deviation of the electrode plates 42A and 42B from occurring, it is possible to reduce the positional deviation of the electrolytic unit 1 that is integrated with the electrode plates 42A and 42B.

[0052] Furthermore, in the electrolytic liquid generating device 100 according to the embodiment, when the electrolysis unit 1 is attached to the housing 3 using the electrode pin 41 and the nut 45 of the power supply unit 4, the spring portions 43A, 43B are arranged so as not to overlap with the flange portion 411 of the electrode pin 41 in a plan view from the first direction D1. This makes it possible to suppress the force transmitted to the electrode pin 41 when the nut 45 is screwed onto the electrode pin 41 from being transmitted to the spring portions 43A, 43B.

[0053] Furthermore, in the electrolytic liquid generating device 100 according to this embodiment, the flat surface 4131 of the shaft portion 413 comes into contact with the opening edge of the second through hole 3112, making it possible to restrict the rotation of the electrode pin 41.

[0054] (5) Variations The above-described embodiment is merely one of various embodiments of the present disclosure. The above-described embodiment can be modified in various ways depending on the design and the like as long as the object of the present disclosure can be achieved. Below, modified examples of the above-described embodiment are listed. The modified examples described below can be applied in appropriate combination.

[0055] In the above embodiment, the electrode pin 41 and the electrode plates 42A and 42B are made of the same material, but they may be made of different materials.

[0056] In the above-described embodiment, among the multiple faces constituting the circumferential surface of the shaft portion 413 extending in the first direction D1, two faces opposing each other in the second direction D2 are both flat surfaces 4131, but it is sufficient that at least one of them is the flat surface 4131. That is, it is sufficient that at least one end of the shaft portion 413 in the second direction D2 is the flat surface 4131 intersecting with the second direction D2. Also, in the above-described embodiment, the flat surface 4131 is perpendicular to the second direction D2, but it is sufficient that the flat surface 4131 intersects with the second direction D2.

[0057] (Aspect) The present specification discloses the following aspects.

[0058] The electrolytic liquid generating device (100) according to the first aspect includes an electrolysis unit (1), a housing (3), and a power supply unit (4). The electrolysis unit (1) electrolyzes a liquid. The electrolysis unit (1) is disposed inside the housing (3). The power supply unit (4) supplies the electrolysis unit (1) with power for electrolyzing the liquid. The power supply unit (4) includes an electrode pin (41) and electrode plates (42A, 42B). The electrode pin (41) is elongated in a first direction (D1) that is a stacking direction of the electrolysis unit (1), and is provided with a flange portion (411) at a first end in the first direction (D1), and is provided with a thread portion (412) in a predetermined range including a second end opposite to the first end in the first direction (D1). The electrode plates (42A, 42B) have a first through hole (421) through which the electrode pin (41) is inserted, and are electrically connected to the electrolysis unit (1). The housing (3) has a second through hole (3112) through which the electrode pin (41) inserted into the first through hole (421) of the electrode plates (42A, 42B) is inserted. The electrode pin (41) has a shaft portion (413) having a length (L2) in a second direction (D2) perpendicular to the first direction (D1) that is shorter than the flange portion (411). The length (L1) of the flange portion (411) in the second direction (D2) is longer than the opening length (L3) of the first through hole (421) in the second direction (D2). When the center (P1) of the flange portion (411), the center (P2) of the first through hole (421), and the center (P3) of the second through hole (3112) are aligned, a first clearance (C1) between the shaft portion (413) and the first through hole (421) in the second direction (D2) is larger than a second clearance (C2) between the shaft portion (413) and the second through hole (3112) in the second direction (D2).

[0059] In this embodiment, the first clearance (C1) is larger than the second clearance (C2) when the center (P1) of the flange portion (411), the center (P2) of the first through hole (421), and the center (P3) of the second through hole (3112) are aligned. This allows the force transmitted to the electrode pin (41) when the nut (45) is screwed onto the electrode pin (41) to be received by the opening edge of the second through hole (3112), making it possible to prevent the electrode pin (41) from coming into contact with the opening edge of the first through hole (241). As a result, it is possible to prevent the force from being transmitted to the electrode plates (42A, 42B), and the positional deviation of the electrode plates (42A, 42B) is suppressed, making it possible to reduce the positional deviation of the electrolysis unit (1) that is integrated with the electrode plates (42A, 42B).

[0060] In the electrolytic liquid generation apparatus (100) according to the second embodiment, in the first embodiment, the first clearance (C1) is the smallest clearance among the clearances over the entire circumference between the shaft portion (413) and the first through hole (421). The second clearance (C2) is the largest clearance among the clearances over the entire circumference between the shaft portion (413) and the second through hole (3112).

[0061] According to this embodiment, it is possible to further reduce the positional deviation of the electrolysis unit (1).

[0062] The electrolytic liquid generating device (100) according to the third aspect includes an electrolysis unit (1), a housing (3), and a power supply unit (4). The electrolysis unit (1) electrolyzes a liquid. The electrolysis unit (1) is disposed inside the housing (3). The power supply unit (4) supplies the electrolysis unit (1) with power for electrolyzing the liquid. The power supply unit (4) includes an electrode pin (41) and electrode plates (42A, 42B). The electrode pin (41) is elongated in a first direction (D1) that is a stacking direction of the electrolysis unit (1), and is provided with a flange portion (411) at a first end in the first direction (D1), and is provided with a thread portion (412) in a predetermined range including a second end opposite to the first end in the first direction (D1). The electrode plates (42A, 42B) have a first through hole (421) through which the electrode pin (41) is inserted, and are electrically connected to the electrolysis unit (1). The housing (3) has a second through hole (3112) through which the electrode pin (41) inserted into the first through hole (421) of the electrode plates (42A, 42B) is inserted. The electrode pin (41) has a shaft portion (413) having a length (L2) in a second direction (D2) perpendicular to the first direction (D1) that is shorter than the flange portion (411). The length (L1) of the flange portion (411) in the second direction (D2) is longer than a first opening length (L3) of the first through hole (421) in the second direction (D2). The first opening length (L3) and the second opening length (L4) of the second through hole (3112) in the second direction (D2) are longer than the length (L2) of the shaft portion (413) in the second direction (D2). The first opening length (L3) is longer than the second opening length (L4).

[0063] In this embodiment, the first opening length (L3) and the second opening length (L4) are longer than the length (L2) of the shaft portion (413), and the first opening length (L3) is longer than the second opening length (L4). This allows the force transmitted to the electrode pin (41) when the nut (45) is screwed onto the electrode pin (41) to be received by the opening edge of the second through hole (3112), making it possible to prevent the electrode pin (41) from coming into contact with the opening edge of the first through hole (241). As a result, it is possible to prevent the force from being transmitted to the electrode plates (42A, 42B), and the positional deviation of the electrode plates (42A, 42B) is suppressed, making it possible to reduce the positional deviation of the electrolysis unit (1) that is integrated with the electrode plates (42A, 42B).

[0064] The electrolytic liquid generation device (100) according to a fourth aspect is any one of the first to third aspects, and further includes spring portions (43A, 43B). The spring portions (43A, 43B) have elasticity and connect between the electrolysis portion (1) and the electrode plates (42A, 42B). The spring portions (43A, 43B) are arranged so as not to overlap with the flange portions (411) of the electrode pins (41) in a plan view from the first direction (D1).

[0065] According to this embodiment, it is possible to prevent the flange portion (411) from hindering the deformation of the spring portions (43A, 43B).

[0066] In the electrolytic liquid generation apparatus (100) according to a fifth aspect, in any one of the first to fourth aspects, the shaft portion (413) has a circumferential surface extending in a first direction (D1). Of the multiple faces constituting the circumferential surface, at least one of two faces opposing each other in the second direction (D2) is a flat surface (4131).

[0067] According to this embodiment, the flat surface (4131) comes into contact with the opening edge of the second through-hole (3112), thereby making it possible to restrict the rotation of the electrode pin (41).

[0068] The configuration according to the second, fourth or fifth aspect is not essential for the electrolytic liquid production device (100) and may be omitted as appropriate. [Explanation of symbols]

[0069] 1 Electrolytic section 3. Housing 4 Power supply unit 41 Electrode pin 42A,42B Electrode plate 43A, 43B Spring part 100 Electrolyte liquid generation device 411 Flange part 412 Threaded part 413 Shaft section 421 First Through Hole 3112 Second through hole 4131 Plane C1 First Clearance C2 Second Clearance D1 1st direction D2 2nd direction L1, L2 length L3 First opening length (opening length) L4 Second opening length P1,P2,P3 center

Claims

1. an electrolysis unit that electrolyzes the liquid; a housing in which the electrolysis unit is disposed; a power supply unit that supplies power to the electrolysis unit for electrolytic treatment of the liquid, The power supply unit includes: an electrode pin that is elongated in a first direction that is a lamination direction of the electrolysis unit, that has a flange portion at a first end in the first direction, and that has a thread portion in a predetermined range including a second end on the opposite side to the first end in the first direction; an electrode plate having a first through hole through which the electrode pin is inserted and electrically connected to the electrolysis unit; the housing has a second through hole through which the electrode pin inserted into the first through hole of the electrode plate is inserted, the electrode pin has a shaft portion whose length in a second direction perpendicular to the first direction is shorter than that of the flange portion, a length of the flange portion in the second direction is longer than an opening length of the first through hole in the second direction, a first clearance between the shaft portion and the first through hole in the second direction is larger than a second clearance between the shaft portion and the second through hole in the second direction in a state in which a center of the flange portion, a center of the first through hole, and a center of the second through hole are aligned with each other; Electrolyte liquid generation device.

2. the first clearance is a minimum clearance among clearances around an entire circumference between the shaft portion and the first through hole, The second clearance is a maximum clearance among clearances around the entire circumference between the shaft portion and the second through hole. The electrolytic liquid generating device according to claim 1 .

3. an electrolysis unit that electrolyzes the liquid; a housing in which the electrolysis unit is disposed; a power supply unit that supplies power to the electrolysis unit for electrolytic treatment of the liquid, The power supply unit includes: an electrode pin that is elongated in a first direction that is a lamination direction of the electrolysis unit, that has a flange portion at a first end in the first direction, and that has a thread portion in a predetermined range including a second end on the opposite side to the first end in the first direction; an electrode plate having a first through hole through which the electrode pin is inserted and electrically connected to the electrolysis unit; the housing has a second through hole through which the electrode pin inserted into the first through hole of the electrode plate is inserted, the electrode pin has a shaft portion whose length in a second direction perpendicular to the first direction is shorter than that of the flange portion, a length of the flange portion in the second direction is longer than a first opening length of the first through hole in the second direction, the first opening length and the second opening length of the second through hole in the second direction are longer than a length of the shaft portion in the second direction; The first opening length is longer than the second opening length. Electrolyte liquid generator.

4. Further comprising a spring portion having elasticity and connecting the electrolysis portion and the electrode plate, The spring portion is disposed so as not to overlap with the flange portion of the electrode pin in a plan view from the first direction. The electrolytic liquid generating device according to any one of claims 1 to 3.

5. The shaft portion has a circumferential surface extending in the first direction, Among the multiple surfaces constituting the peripheral surface, at least one of two surfaces opposing each other in the second direction is a flat surface. The electrolytic liquid generating device according to any one of claims 1 to 3.

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