US20150368814A1 - Hydrogen-containing water generating device - Google Patents

Hydrogen-containing water generating device Download PDF

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Publication number
US20150368814A1
US20150368814A1 US14/764,464 US201414764464A US2015368814A1 US 20150368814 A1 US20150368814 A1 US 20150368814A1 US 201414764464 A US201414764464 A US 201414764464A US 2015368814 A1 US2015368814 A1 US 2015368814A1
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Prior art keywords
electrode
hydrogen
containing water
negative
positive
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Abandoned
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US14/764,464
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English (en)
Inventor
Keisou Iwai
Masayuki SHIMOKATU
Suehiro Sakai
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Assigned to THE CHUGOKU ELECTRIC POWER CO., INC. reassignment THE CHUGOKU ELECTRIC POWER CO., INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IWAI, KEISOU, SAKAI, SUEHIRO, SHIMOKATU, Masayuki
Publication of US20150368814A1 publication Critical patent/US20150368814A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46157—Perforated or foraminous electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C02F2001/46171—Cylindrical or tubular shaped
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the present invention relates to a technology to obtain water containing hydrogen from raw water such as tap water.
  • Patent Literature 1 Japanese Patent Application Laid-Open Publication No. 2010-88972
  • Patent Literature 2 Japanese Patent Application Laid-Open Publication No. 2010-88973
  • Patent Literature 3 Japanese Patent Application Laid-Open Publication No. 2010-284504
  • Patent Literatures 1 to 3 are provided with the positive electrode and the negative electrode in the electrolytic bath, and supply raw water to the electrolytic bath to generate hydrogen-containing water.
  • the electrolytic bath is used by being installed in a bath or a tank for storing drinking water.
  • a movable portable device that can be brought into a place where the device is used, that is, where the hydrogen-containing water is generated, and generate the hydrogen-containing water is desired in consideration of convenience, instead of the installation type such as the ones described in Patent Literatures 1 to 3.
  • the portable device may be supplied power by a battery or the like, for example, in a case where a commercial power source is not available. Therefore, the portable device is required to cause the raw water to efficiently contain hydrogen.
  • Patent Literatures 1 to 3 forcibly cause the raw water to be passed through the positive electrode and the negative electrode, and thus can easily release oxygen generated on the positive electrode side to an outside.
  • the forcible passage of the raw water cannot be expected in the portable device. Therefore, there is room for improvement for releasing oxygen generated on the positive electrode side to an outside.
  • an objective of the present invention is to promptly release oxygen generated on a positive electrode side to an outside, in generating hydrogen-containing water.
  • a hydrogen-containing water generating device generates water containing hydrogen and includes: a positive electrode that is a tubular conductor and includes a plurality of openings in a side portion; an insulator that is provided on an outer peripheral portion of the positive electrode; a negative electrode that is a tubular conductor provided on an outer peripheral portion of the insulator and includes a plurality of openings in a side portion; a first support that is mounted to a first end portion side of the positive electrode and a first end portion side of the negative electrode and includes a first installation portion in contact with an installing object of the hydrogen-containing water generating device; and a second support that is mounted to a second end portion side of the positive electrode and a second end portion side of the negative electrode, includes a second installation portion in contact with the installing object, and has a distance from the side portion of the positive electrode to the second installation portion in a direction perpendicular to the side portion of the positive electrode, the distance being larger than a distance from the side portion of the positive
  • an angle formed by the installing object, and the positive electrode and the negative electrode is preferably from 2 to 10 degrees, both inclusive, when the first support and the second support are installed to the installing object.
  • the hydrogen-containing water generating device further includes: a positive-electrode power feed member that is a rod-like conductor mounted to an inside of the side portion of the positive electrode and protrudes from the first end portion side of the positive electrode; a positive-electrode support member that is a rod-like member mounted to the inside of the side portion of the positive electrode and protrudes from the second end portion side of the positive electrode; a negative-electrode power feed member that is a rod-like conductor mounted to an outside of the side portion of the negative electrode and protrudes from the first end portion side of the negative electrode; and a negative-electrode support member that is a rod-like member mounted to the outside of the side portion of the negative electrode and protrudes from the second end portion side of the negative electrode.
  • the first support preferably supports the positive-electrode power feed member and the negative-electrode power feed member
  • the second support preferably supports the positive-electrode support member and the
  • the hydrogen-containing water generating device further includes: a positive-electrode power feed member that is a rod-like conductor mounted to an inside of the side portion of the positive electrode and protrudes from at least one of the first end portion side of the positive electrode and the second end portion side of the positive electrode; and a negative-electrode power feed member that is a rod-like conductor mounted to an outside of the side portion of the negative electrode and protrudes from at least one of the first end portion side of the negative electrode and the second end portion side of the positive electrode.
  • the first support or the second support preferably supports the positive-electrode power feed member and the negative-electrode power feed member.
  • At least one of the first support and the second support includes an opening portion connected with a space surrounded by the side portion of the positive electrode.
  • a protection member being a tubular member and including a plurality of openings in a side portion is provided outside the negative electrode, and a first end portion of the protection member is supported by the first support, and a second end portion of the protection member is supported by the second support.
  • the plurality of openings included in the protection member is preferably larger than the plurality of openings included in the negative electrode.
  • the insulator preferably includes a plurality of openings.
  • the present invention can promptly release oxygen generated on a positive electrode side to an outside, in generating hydrogen-containing water.
  • FIG. 1 is a perspective view illustrating a hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 2 is a perspective view illustrating the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 3 is a diagram illustrating a use state of a hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 4 is a side view illustrating the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 5 is a diagram illustrating a cross section of the hydrogen-containing water generating electrode according to the present embodiment taken along a plane including a central axis of the electrode.
  • FIG. 6 is an A-A cross-sectional view of FIG. 4 .
  • FIG. 7 is a partially enlarged diagram of FIG. 6 .
  • FIG. 8 is a side view illustrating a modification of the hydrogen-containing water generating electrode.
  • FIG. 9 is a side view illustrating a modification of the hydrogen-containing water generating electrode.
  • FIG. 10 is a cross-sectional view illustrating a modification of the hydrogen-containing water generating electrode.
  • FIG. 11 is a cross-sectional view illustrating a modification of the hydrogen-containing water generating electrode.
  • FIG. 12 is a diagram illustrating a partially enlarged positive electrode and a partially enlarged negative electrode.
  • FIG. 13 is an enlarged diagram of an opening included in the positive electrode and the negative electrode.
  • FIG. 14 is a B-B cross-sectional view of FIG. 12 .
  • FIG. 15 is a diagram illustrating a partially enlarged insulator.
  • FIG. 16 is a flowchart of a method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 17 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 18 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 19 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 20 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 21 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 22 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 23 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 24 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 25 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 26 is a diagram illustrating a step of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 27 is a diagram illustrating a hydrogen-containing water generating device according to the present embodiment.
  • FIG. 28 is a diagram illustrating a first support included in the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 29 is a diagram illustrating a second support included in the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 30 is a diagram illustrating an opening of a protection member and an opening of a negative electrode included in the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 31 is a diagram illustrating another use state of the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 32 is a diagram illustrating a mounting structure of when the hydrogen-containing water generating electrode is mounted to the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 33 is a diagram illustrating a mounting structure of when the hydrogen-containing water generating electrode is mounted to the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 34 is a diagram illustrating another mounting structure of when a hydrogen-containing water generating electrode is mounted to the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 35 is a diagram illustrating a modification of the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 36 is a diagram illustrating the modification of the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 37 is a diagram illustrating the modification of the hydrogen-containing water generating device according to the present embodiment.
  • FIGS. 1 and 2 are perspective views illustrating a hydrogen-containing water generating electrode according to the present embodiment.
  • a hydrogen-containing water generating electrode 10 generates hydrogen-containing water that is water containing hydrogen, from raw water such as tap water, using an electrolysis action of water.
  • the hydrogen-containing water is alkaline water.
  • the hydrogen-containing water generating electrode 10 includes a positive electrode 11 , a negative electrode 12 , and an insulator 13 .
  • the positive electrode 11 and the negative electrode 12 are a tubular conductor.
  • shapes of the positive electrode 11 and the negative electrode 12 are, but not limited to, a cylindrical shape.
  • the insulator 13 is provided on an outer peripheral portion of the positive electrode 11 , and is in contact with the positive electrode 11 .
  • the negative electrode 12 is provided on an outer peripheral portion of the insulator 13 , and is in contact with the insulator 13 . That is, the insulator 13 is provided between the positive electrode 11 and the negative electrode 12 provided outside the positive electrode 11 , and is in contact with the positive electrode 11 and the negative electrode 12 .
  • the positive electrode 11 , the negative electrode 12 , and the insulator 13 are a net-like member. In the present embodiment, the insulator 13 is in contact with the positive electrode 11 and the negative electrode 12 . However, the insulator 13 may not necessarily contact with the positive electrode 11 and the negative electrode 12 .
  • a positive-electrode power feed member 14 that is a rod-like conductor is electrically connected with the positive electrode 11 .
  • a negative-electrode power feed member 15 that is a rod-like conductor is electrically connected with the negative electrode 12 .
  • the positive-electrode power feed member 14 is electrically connected with a positive electrode of a power source (direct-current power source) 20 .
  • the negative-electrode power feed member 15 is electrically connected with a negative electrode of the power source 20 .
  • the positive electrode 11 is electrically connected with the positive electrode of the power source 20 through the positive-electrode power feed member 14
  • the negative electrode 12 is electrically connected with the negative electrode of the power source 20 through the negative-electrode power feed member 15 .
  • a positive-electrode support member 18 that is a rod-like member is mounted to the positive electrode 11 .
  • the positive-electrode support member 18 is mounted to the positive electrode 11 at a side opposite to the side where the positive-electrode power feed member 14 is mounted.
  • a negative-electrode support member 19 that is a rod-like member is mounted to the negative electrode 12 .
  • the negative-electrode support member 19 is mounted to the negative electrode 12 at a side opposite to the side where the negative-electrode power feed member 15 is mounted.
  • all of the positive-electrode support member 18 , the negative-electrode support member 19 , the positive-electrode power feed member 14 , and the negative-electrode power feed member 15 are, but not limited to, of the same material.
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 may be the same material, and the positive-electrode support member 18 and the negative-electrode support member 19 may be a different material from the material of the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the positive electrode 11 and the negative electrode 12 may not necessarily be provided with the positive-electrode support member 18 and the negative-electrode support member 19 .
  • the hydrogen-containing water generating electrode 10 As illustrated in FIGS. 1 and 2 , the hydrogen-containing water generating electrode 10 , to be specific, the positive electrode 11 and the negative electrode 12 include end-portion-side opening portions 10 HA and 10 HB as opening portions at both end portions.
  • the hydrogen-containing water generating electrode 10 may not include the end-portion-side opening portions 10 HA and 10 HB, or may include the end-portion-side opening portion 10 HA or the end-portion-side opening portion 10 HB at least at one end portion.
  • the positive electrode 11 includes a slit 11 SL extending in a longitudinal direction, that is, in a direction in which the positive electrode 11 as a tubular member extends.
  • the negative electrode 12 includes a slit 12 SL extending in the longitudinal direction, that is, in a direction in which the negative electrode 12 as a tubular member extends.
  • the hydrogen-containing water generating electrode 10 includes restraining members 40 between the negative-electrode power feed member 15 and the negative-electrode support member 19 , and on outside portions of the negative electrode 12 .
  • the restraining members 40 closes the slit 11 SL of the positive electrode 11 and the slit 12 SL of the negative electrode 12 to restrain the negative electrode 12 , the insulator 13 , and the positive electrode 11 from a circumferential direction of the negative electrode 12 and the positive electrode 11 .
  • a use state of the hydrogen-containing water generating electrode 10 will be described.
  • FIG. 3 is a diagram illustrating a use state of the hydrogen-containing water generating electrode according to the present embodiment.
  • the hydrogen-containing water generating electrode 10 is put in raw water W, and generates hydrogen-containing water in the raw water W.
  • the hydrogen-containing water generating electrode 10 is not an installation type, and is applicable to a portable device that can be brought into a place where the device is used, that is, where the hydrogen-containing water is generated, and be put in the raw water W and generate the hydrogen-containing water.
  • the raw water W is, for example, warm water stored in a bath, drinking water stored in a drinking water tank, rinse water stored in a rinse water tank, or the like.
  • the ionized hydrogen ions H + pass through the insulator 13 and are gathered to the negative electrode 12 side, and bubbles of a hydrogen gas (H 2 ) are generated at the negative electrode 12 . These bubbles are minute bubbles with a diameter in the nanometer order.
  • the raw water W (2H 2 O) is split to form H 2 +2OH ⁇ with an electron (2e ⁇ ).
  • the hydrogen gas is dissolved in the raw water W by the water-forming function. Therefore, the hydrogen-containing water in which hydrogen is dissolved in the raw water W is generated.
  • the ionized hydroxyl ions OH ⁇ pass through the insulator 13 and are gathered to the positive electrode 11 side, and the raw water W (2H 2 O) is split to form O 2 +4H + +4e ⁇ , and acid ion water is generated.
  • O 2 is gathered to an inside of the tubular positive electrode 11 as bubbles, are moved along the inside of the positive electrode 11 , and are released from the end-portion-side opening portions 10 HA and 10 HB to an outside of the positive electrode 11 .
  • the hydrogen-containing water generating electrode 10 will be described in more detail.
  • FIG. 4 is a side view of the hydrogen-containing water generating electrode according to the present embodiment.
  • FIG. 4 illustrates a state in which a part of the negative electrode 12 and the insulator 13 of the hydrogen-containing water generating electrode 10 is removed.
  • FIG. 5 is a diagram illustrating a cross section of the hydrogen-containing water generating electrode according to the present embodiment taken along a plane including a central axis of the electrode.
  • FIG. 6 is an A-A cross-sectional view of FIG. 4 .
  • FIG. 7 is a partially enlarged diagram of FIG. 6 .
  • a direction parallel to a direction (hereinafter, appropriately referred to as longitudinal direction) E in which the tubular positive electrode 11 and negative electrode 12 having a cylindrical shape in the present embodiment extend is a central axis Zt of these electrodes.
  • the central axis Zt is an axis passing through a center (gravity center) in cross sections of the positive electrode 11 and the negative electrode 12 , the cross sections being perpendicular to the central axis Zt.
  • the positive electrode 11 includes a plurality of openings 11 H in a side portion
  • the negative electrode 12 includes a plurality of openings 12 H in a side portion.
  • the plurality of openings 11 H included in the positive electrode 11 penetrates the side portion of the positive electrode 11 in a thickness direction of the positive electrode 11
  • the plurality of openings 12 H included in the negative electrode 12 penetrates the side portion of the negative electrode 12 in a thickness direction of the negative electrode 12 .
  • the positive electrode 11 and the negative electrode 12 are manufactured with a conductor.
  • the positive electrode 11 and the negative electrode 12 are titanium (Ti) plated with platinum (Pt).
  • the plating may be, for example, platinum (Pt)-iridium (Ir) plating.
  • titanium is pure titanium.
  • the positive electrode 11 and the negative electrode 12 are not limited to the titanium plated with platinum. However, it is favorable to employ a material (vanadium (V), for example), that is not dissolved in the raw water W. In the present embodiment, both of the positive electrode 11 and the negative electrode 12 are plated. However, only the positive electrode 11 , on which calcium hydroxide, magnesium hydroxide, or the like in the raw water is deposited, is plated, and the negative electrode 12 may not be plated. In this way, the manufacturing cost of the hydrogen-containing water generating electrode 10 can be decreased.
  • the insulator 13 lying between the positive electrode 11 , an outer side portion (outside portion) 11 So of the positive electrode 11 , and an inner side portion (inside portion) 12 Si of the negative electrode 12 is in contact with the outside portion 11 So of the positive electrode 11 and the inside portion 12 Si of the negative electrode 12 .
  • the insulator 13 includes a plurality of openings 13 H.
  • the openings 13 H penetrate the insulator 13 in a thickness direction of the insulator 13 .
  • a net woven with fiber of a material having insulation properties (a resin, for example) can be used.
  • the insulator 13 may have an ion exchange function.
  • the insulator 13 may be an ion-exchange membrane (positive ion-exchange membrane). In this case, the insulator 13 may not include the openings 13 H.
  • the positive ion-exchange membrane is negatively charged due to an anionic group fixed to the membrane. Therefore, the negative ion is repelled and cannot pass through, and only the positive ion can pass through. Therefore, in the hydrogen-containing water generating electrode 10 , the insulator 13 using the positive ion-exchange membrane transmits only the positive ion, that is, the hydrogen ion H + , and repels the negative ion, that is, the ionized hydroxyl ion OH ⁇ . Therefore, the amount of the hydroxyl ion OH ⁇ that passes through the insulator 13 and is moved to the positive electrode 11 side can be decreased. As a result, generation of oxygen and the acid ion water can be suppressed at the positive electrode 11 side.
  • the insulator 13 As described above, while the ion-exchange membrane may be used, an electrically neutral material is used as the insulator 13 . In doing so, the manufacturing cost of the insulator can be decreased, and processing becomes easy. Further, the ion-exchange membrane has a hole that transmits the ions but does not transmit water molecules. If the ion-exchange membrane is used as the insulator 13 , the hydrogen-containing water generating electrode 10 provided with the insulator 13 requires a high voltage in generating the hydrogen-containing water, and the power consumption may become large. In the present embodiment, the insulator 13 is an electrically neutral net-like member. Therefore, the hydrogen-containing water can be generated at a lower voltage than the case of the ion-exchange membrane, and the power consumption can be suppressed.
  • the thickness of the insulator 13 is about 0.1 to 1 mm.
  • an end portion of the insulator 13 provided between the outside portion (corresponding to an outer peripheral portion) 11 So of the positive electrode 11 and the inside portion (corresponding to an inner peripheral portion) 12 Si of the positive electrode 12 is taken out through the slit 12 SL of the negative electrode 12 to an outside portion (corresponding to an outer peripheral portion) 12 So side of the negative electrode 12 .
  • the end portion of the insulator 13 may be taken out through the slit 11 SL of the positive electrode 11 to an inside portion (corresponding to an inner peripheral portion) 11 Si side of the positive electrode 11 .
  • the size t of the interelectrode gap is a distance between the outside portion (outer peripheral portion) 11 So of the positive electrode 11 , and the inside portion (inner peripheral portion) 12 Si of the negative electrode 12 .
  • Amounts of dissolved hydrogen of the hydrogen-containing water are compared when the size t of the interelectrode gap illustrated in FIG. 7 is changed.
  • t 0.4 mm and 3 mm.
  • the voltage applied to the hydrogen-containing water generating electrode 10 is 18 V, and the current is 5 A.
  • Results are illustrated in Table 1.
  • the dissolved hydrogen in Table 1 is a measured value of when 15 minutes has passed from when the hydrogen-containing water generating electrode 10 is put in hot water of 120 liters, 41° C., and the voltage is applied to the positive electrode 11 and the negative electrode 12 .
  • the amount of hydrogen (dissolved hydrogen amount) dissolved in the raw water becomes larger as the size t of the interelectrode gap becomes smaller.
  • the size t of the interelectrode gap it is favorable to cause the size t of the interelectrode gap to be from 0.1 to 1 mm, both inclusive.
  • the hydrogen-containing water generating electrode 10 can generate a sufficient amount of hydrogen even if a potential difference between the voltages applied to the positive electrode 11 and to the negative electrode 12 is relatively small, in generating the hydrogen-containing water.
  • the hydrogen-containing water generating electrode 10 can cause a sufficient amount of hydrogen to be dissolved in the raw water, and can generate the hydrogen-containing water in which a large amount of hydrogen is dissolved, even if the voltage applied to the hydrogen-containing water generating electrode 10 is relatively small. Therefore, for example, the hydrogen-containing water generating electrode 10 can be used for a case in which the hydrogen-containing water generating electrode 10 is put in warm water stored in a bath to generate the hydrogen-containing water. Further, if the amount of hydrogen dissolved in the hydrogen-containing water is the same, the hydrogen-containing water generating electrode 10 can suppress the power consumption.
  • the voltage to be applied to the hydrogen-containing water generating electrode 10 is made large.
  • the size t of the interelectrode gap By causing the size t of the interelectrode gap to be 1 mm or less, preferably, 0.6 mm or less, a sufficient amount of hydrogen can be dissolved in the raw water, even if the voltage to be applied to the hydrogen-containing water generating electrode 10 is about 48 V, for example.
  • the size t of the interelectrode gap By causing the size t of the interelectrode gap to be 0.1 mm or more, preferably, 0.2 mm or more, insulation between the positive electrode 11 and the negative electrode 12 by the insulator 13 lying between the positive electrode 11 and the negative electrode 12 can be sufficiently secured.
  • the hydrogen-containing water generating electrode 10 can stably exhibit performance. Further, as described above, when a resin is used as the insulator 13 , by causing the size t of the interelectrode gap to be 0.1 mm or more, preferably, 0.2 mm or more, a decrease in durability of the insulator 13 can be suppressed. In the present embodiment, the insulator 13 lying between the positive electrode 11 and the negative electrode 12 is in contact with both of the positive electrode 11 and the negative electrode 12 . Therefore, the size t of the interelectrode gap is determined according to the thickness of the insulator 13 .
  • the hydrogen-containing water generating electrode 10 is directly put in a bath or a drinking water tank, and generates the hydrogen-containing water. Then, when generation of the hydrogen-containing water is not necessary, the hydrogen-containing water generating electrode 10 is taken out of the bath or the drinking water tank. As described above, the hydrogen-containing water generating electrode 10 is not used by being installed to a mounting object, and can be moved or carried. Therefore, the hydrogen-containing water generating electrode 10 is subject to influence of vibration and impact, compared with one installed and used.
  • the space between the positive electrode 11 and the negative electrode 12 can be easily made constant with the insulator 13 throughout the entire hydrogen-containing water generating electrode 10 .
  • the hydrogen-containing water generating electrode 10 variation of electrical resistance between the positive electrode 11 and the negative electrode 12 is suppressed, and variation of current density is suppressed. Therefore, the hydrogen bubbles can be uniformly generated from the entire electrode.
  • the insulator 13 can be easily brought to come in contact with both of the positive electrode 11 and the negative electrode 12 . Therefore, it is favorable.
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 will be described.
  • the positive-electrode power feed member 14 is a rod-like conductor extending from a first end portion (one end portion) 11 T 1 of the positive electrode 11 to a second end portion (the other end portion) 11 T 2 .
  • a portion of the positive-electrode power feed member 14 is mounted to the inside portion 11 Si of the positive electrode 11 .
  • the negative-electrode power feed member 15 is a rod-like conductor extending from a first end portion 12 T 1 of the negative electrode 12 to a second end portion 12 T 2 . As illustrated in FIGS. 5 and 6 , a portion of the negative-electrode power feed member 15 , the portion being shorter than half L/2 of a dimension L of the negative electrode 12 in the direction (longitudinal direction) E in which the negative electrode 12 extends, is mounted to the outside portion 12 So of the negative electrode 12 . Both of the length of the portion of the positive-electrode power feed member 14 mounted to the positive electrode 11 , and the length of the portion of the negative-electrode power feed member 15 mounted to the negative electrode 12 are LS. In the present embodiment, LS ⁇ L/2 is satisfied.
  • the positive-electrode support member 18 is a rod-like conductor extending from the second end portion 11 T 2 of the positive electrode 11 to the first end portion 11 T 1 .
  • a portion of the positive-electrode support member 18 is mounted to the inside portion 11 Si of the positive electrode 11 .
  • the negative-electrode support member 19 is a rod-like conductor extending from a second end portion 12 T 2 of the negative electrode 12 to the first end portion 12 T 1 . As illustrated in FIG.
  • a portion of the negative-electrode support member 19 is mounted to the outside portion 12 So of the negative electrode 12 .
  • the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the positive-electrode support member 18 , and the negative-electrode support member 19 are members of titanium plated with platinum, similarly to the positive electrode 11 and the negative electrode 12 .
  • the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the positive-electrode support member 18 , and the negative-electrode support member 19 are not limited to the titanium plated with platinum, similarly to the positive electrode 11 and the negative electrode 12 . However, it is favorable to employ a material that is not dissolved in the raw water W.
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are respectively joined with and are electrically connected with the positive electrode 11 and the negative electrode 12 by joining means such as welding.
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are respectively joined with and mounted to the positive electrode 11 and the negative electrode 12 by joining means such as welding.
  • the plating applied to the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the positive-electrode support member 18 , and the negative-electrode support member 19 may be, for example, platinum (Pt)-iridium (Ir) plating.
  • the negative electrode 12 may not be plated, and in this case, the negative-electrode power feed member 15 may also not be plated.
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are respectively electrically joined with the positive electrode 11 and the negative electrode 12 at joined portions CP in a plurality of places by spot welding.
  • the positive-electrode support member 18 and the negative-electrode support member 19 are similar to the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the joining of the positive-electrode power feed member 14 and the negative-electrode power feed member 15 is not limited to the spot welding.
  • the plurality of joined portions CP is provided not to be shifted to one place in the longitudinal direction of the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 can supply the power from the entire own length in the longitudinal direction E.
  • the portions of the negative-electrode power feed member 15 and the negative-electrode support member 19 the portions being shorter than the half L/2 of the dimension L of the negative electrode 12 in the direction (longitudinal direction) E in which the negative electrode 12 extends, is mounted to the outside portion 12 So of the negative electrode 12 , as separate members.
  • the hydrogen-containing water generating electrode 10 can have the restraining members 40 mounted to the portion where the negative-electrode power feed member 15 and the negative-electrode support member 19 do not exist, in the outside portion 12 So of the negative electrode 12 .
  • the restraining members 40 do not interfere with the negative-electrode power feed member 15 and the negative-electrode support member 19 . Therefore, the restraining members 40 can restrain the negative electrode 12 , the insulator 13 , and the positive electrode 11 with uniform force throughout the entire outer peripheral portion of the negative electrode 12 .
  • the positive-electrode power feed member 14 protrudes from the first end portion 11 T 1 of the positive electrode 11
  • the negative-electrode power feed member 15 protrudes from the first end portion 12 T 1 of the negative electrode 12 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 can cause the portions protruding from the first end portions 11 T 1 and 12 T 1 to be mounted to a mounting object ST 1 , as illustrated in FIG. 4 .
  • the positive electrode 11 and the negative electrode 12 are mounted to the mounting object ST 1 through the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are provided with male screws 14 S and 15 S on the portions protruding from the first end portions 11 T 1 and 12 T 1 , as illustrated in FIG. 4 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are mounted and fixed to the mounting object ST 1 with bolts 32 and 32 respectively screwed into the male screws 14 S and 15 S.
  • the first end portion 11 T 1 of the positive electrode 11 is in contact with the mounting object ST 1 , and is fixed to the mounting object ST 1 through the positive-electrode power feed member 14 with the bolt 32 .
  • the first end portion 12 T 1 of the negative electrode 12 is in contact with the mounting object ST 1 , and is fixed to the mounting object ST 1 through the negative-electrode power feed member 15 with the bolt 32 . Therefore, large portions of the positive electrode 11 and the negative electrode 12 are in contact with the mounting object ST 1 , and thus can be stably mounted to the mounting object ST 1 .
  • a terminal 34 that electrically connects the positive-electrode power feed member 14 and wiring, and a terminal 34 that connects the negative-electrode power feed member 15 and wiring are fixed with the respective bolts 32 and 32 , and bolts 33 and 33 respectively screwed into the male screws 14 S and 15 S.
  • the power is applied to the positive electrode 11 and the negative electrode 12 through the terminals 34 and 34 , the positive-electrode power feed member 14 , and the negative-electrode power feed member 15 .
  • the positive-electrode support member 18 protrudes from the second end portion 11 T 2 of the positive electrode 11
  • the negative-electrode support member 19 protrudes from the second end portion 12 T 2 of the negative electrode 12 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 can cause the portions protruding from the second end portions 11 T 2 and 12 T 2 to be mounted to a mounting object ST 2 , as illustrated in FIG. 4 .
  • the positive electrode 11 and the negative electrode 12 are mounted to the mounting object ST 2 through the positive-electrode support member 18 and the negative-electrode support member 19 .
  • the positive-electrode support member 18 and the negative-electrode support member 19 are provided with male screws 18 S and 19 S on the portions protruding from the second end portions 11 T 2 and 12 T 2 , as illustrated in FIG. 4 .
  • the positive-electrode support member 18 and the negative-electrode support member 19 are mounted and fixed to the mounting object ST 2 with bolts 31 and 31 respectively screwed into the male screws 18 S and 19 S.
  • the second end portion 11 T 2 of the positive electrode 11 is in contact with the mounting object ST 2 , and is fixed to the mounting object ST 2 through the positive-electrode support member 18 with the bolt 31 .
  • the second end portion 12 T 2 of the negative electrode 12 is in contact with the mounting object ST 2 , and is fixed to the mounting object ST 2 through the negative-electrode support member 19 with the bolt 31 . Therefore, large portions of the positive electrode 11 and the negative electrode 12 are in contact with the mounting object ST 2 , and thus can be stably mounted to the mounting object ST 2 .
  • the hydrogen-containing water generating electrode 10 can be mounted to the mounting objects ST 1 and ST 2 with the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the positive-electrode support member 18 , and the negative-electrode support member 19 from both ends of the positive electrode 11 and the negative electrode 12 . Further, the hydrogen-containing water generating electrode 10 may be mounted to one mounting object using either ones of the positive-electrode power feed member 14 and the negative-electrode power feed member 15 , or the positive-electrode support member 18 and the negative-electrode support member 19 . As described above, the hydrogen-containing water generating electrode 10 has an advantage of high flexibility of mounting.
  • FIGS. 8 and 9 are side views illustrating modifications of a hydrogen-containing water generating electrode.
  • the restraining member 40 illustrated in FIG. 4 and the like is omitted.
  • the restraining member 40 is mounted to a hydrogen-containing water generating electrode 10 a illustrated in FIG. 8 , and to a hydrogen-containing water generating electrode 10 b illustrated in FIG. 9 from outsides of negative-electrode power feed members 14 a and 14 b mounted to outsides of negative electrodes 12 .
  • a portion of the positive-electrode power feed member 14 a is mounted to an inside portion 11 Si of the positive electrode 11 illustrated in FIG. 5 .
  • a portion of a negative-electrode power feed member 15 a is mounted to an outside portion 12 So of the negative electrode 12 illustrated in FIG. 5 .
  • Both of the length of the portion of the positive-electrode power feed member 14 a mounted to the positive electrode 11 , and the length of the portion of the negative-electrode power feed member 15 a mounted to the negative electrode 12 are LS.
  • LS>L/2 is satisfied.
  • the length LS is preferably 70% or more of the dimension L of the positive electrode 11 and the negative electrode 12 in the longitudinal direction E, and is more preferably 80% or more of the dimension L.
  • the length LS is 95% or more of the dimension L.
  • the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a are respectively electrically joined with the positive electrode 11 and the negative electrode 12 at joined portions CP in a plurality of places by spot welding.
  • the plurality of joined portions CP is provided not to be shifted to one place in the longitudinal direction of the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a . In doing so, the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a can supply power to the positive electrode 11 and the negative electrode 12 from the entire length in the longitudinal direction E.
  • the hydrogen-containing water generating electrode 10 a can cause current distribution of the positive electrode 11 and the negative electrode 12 in the longitudinal direction E to be close to uniform distribution. Therefore, the hydrogen-containing water generating electrode 10 a can generate hydrogen from the entire region of the negative electrode 12 in the longitudinal direction E. Further, the positive electrode 11 and the negative electrode 12 are respectively electrically connected with the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a in the respective large ranges in the longitudinal direction E. Therefore, the hydrogen-containing water generating electrode 10 a can suppress a decrease in efficiency of the current, and can efficiently use the current. That is, the hydrogen-containing water generating electrode 10 a can suppress a decrease in use efficiency of the current to be applied.
  • the hydrogen-containing water generating electrode 10 a can increase hydrogen content per unit power. Further, by causing the length LS of the portion of the positive-electrode power feed member 14 a mounted to the positive electrode 11 , and the length LS of the portion of the negative-electrode power feed member 15 a mounted to the negative electrode 12 to satisfy the above-described range, the positive electrode 11 and the negative electrode 12 can be reinforced.
  • the positive-electrode power feed member 14 a protrudes from both of a first end portion 11 T 1 and a second end portion 12 T 2 of the positive electrode 11 .
  • the negative-electrode power feed member 15 a protrudes from both of a first end portion 12 T 1 and a second end portion 12 T 2 of the negative electrode 12 .
  • the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a can cause the portions protruding from the first end portions 11 T 1 and 12 T 1 to be mounted to a mounting object ST 1 , and cause the portions protruding from the second end portions 11 T 2 and 12 T 2 to be mounted to a mounting object ST 2 , as illustrated in FIG. 8 .
  • the positive electrode 11 and the negative electrode 12 are mounted to the mounting objects ST 1 and ST 2 through the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a.
  • the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a are provided with male screws 14 S 1 and 15 S 1 on the portions protruding from the first end portions 11 T 1 and 12 T 1 , as illustrated in FIG. 8 . Further, the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a are provided with male screws 14 S 2 and 15 S 2 on the portions protruding from the second end portions 11 T 2 and 12 T 2 .
  • the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a are mounted and fixed to the mounting object ST 1 with bolts 32 and 32 respectively screwed into the male screws 14 S 1 and 15 S 1 of the first end portion 11 T 1 side. Further, the positive-electrode power feed member 14 a and the negative-electrode power feed member 15 a are mounted and fixed to the mounting object ST 2 with bolts 31 and 31 respectively screwed into the male screws 14 S 2 and 15 S 2 of the second end portion 12 T 2 side.
  • Terminals 34 and 34 that connect the positive-electrode power feed member 14 and the negative-electrode power feed member 15 , and the wiring are fixed with the bolts 32 , and the bolts 33 respectively screwed into the male screws 14 S 1 and 15 S 1 .
  • the power is applied to the positive electrode 11 and the negative electrode 12 through the terminals 34 and 34 , the positive-electrode power feed member 14 a , and the negative-electrode power feed member 15 a .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 protrude from both sides of the positive electrode 11 and the negative electrode 12 . Therefore, similar functions and effects to the above-described hydrogen-containing water generating electrode 10 (see FIG. 4 and other figures) can be obtained.
  • the hydrogen-containing water generating electrode 10 b illustrated in FIG. 9 is different from the hydrogen-containing water generating electrode 10 a illustrated in FIG. 8 in that a positive-electrode power feed member 14 b and a negative-electrode power feed member 15 b protrude only from first end portions 11 T 1 and 12 T 1 of a positive electrode 11 and a negative electrode 12 , and do not protrude from second end portions 11 T 2 and 12 T 2 .
  • Other structures of the hydrogen-containing water generating electrode 10 b are similar to those of the hydrogen-containing water generating electrode 10 a illustrated in FIG. 8 . Therefore, the hydrogen-containing water generating electrode 10 b can obtain similar functions and effects to the hydrogen-containing water generating electrode 10 a illustrated in FIG. 8 , except than only the first end portions 11 T 1 and 12 T 1 side of the positive electrode 11 and the negative electrode 12 are mounted to a mounting object ST.
  • FIGS. 10 and 11 are cross-sectional views illustrating modifications of a hydrogen-containing water generating electrode.
  • FIGS. 10 and 11 illustrate cross sections of hydrogen-containing water generating electrodes 10 c and 10 d , the cross sections being perpendicular to a central axis Zt.
  • the hydrogen-containing water generating electrode 10 c illustrated in FIG. 10 includes a positive electrode 11 c , a negative electrode 12 c , an insulator 13 c , a flat surface portion 10 P, and a curved surface portion 10 R connected with the flat surface portion 10 P.
  • the positive electrode 11 c includes a slit 11 SLa extending in a longitudinal direction, that is, in a direction in which the positive electrode 11 c as a tubular member extends.
  • the negative electrode 12 c includes a slit 12 SLa extending in the longitudinal direction, that is, in a direction in which the negative electrode 12 c as a tubular member extends.
  • the hydrogen-containing water generating electrode 10 d illustrated in FIG. 11 includes a positive electrode 11 d , a negative electrode 12 d , an insulator 13 d , a first flat surface portion 10 PA, a pair of second flat surface portions 10 PB and 10 PB connected with both ends of the first flat surface portion 10 PA, and a curved surface portion 10 R connecting the pair of second flat surface portions 10 PB and 10 PB.
  • the positive electrode 11 d includes a slit 11 SLb extending in a longitudinal direction, that is, in a direction in which the positive electrode 11 d as a tubular member extends.
  • the negative electrode 12 d includes a slit 12 SLb extending in the longitudinal direction, that is, in a direction in which the negative electrode 12 d as a tubular member extends.
  • the positive electrodes 11 c and 11 d , and the negative electrodes 12 c and 12 d included in the hydrogen-containing water generating electrodes 10 c and 10 d have a shape of combination of flat surfaces and curved surfaces. Further, the hydrogen-containing water generating electrodes 10 , 10 a , and 10 b illustrated in FIGS. 1 , 2 , 8 , 9 , and other figures have a cylindrical shape, and thus have a curved surface throughout the entire circumferences of the positive electrodes 11 and the negative electrodes 12 .
  • the hydrogen-containing water generating electrode 10 can cause the bubbles of hydrogen to be efficiently separated from the negative electrode 11 throughout the entire circumference, and can cause hydrogen to be dissolved in the raw water W, by forming the positive electrode 11 and the negative electrode 12 in the cylindrical shape. Further, the hydrogen-containing water generating electrode 10 can be easily manufactured by forming the positive electrode 11 and the negative electrode 12 in the cylindrical shape.
  • the hydrogen-containing water generating electrodes 10 , 10 a , 10 b , 10 c , and 10 d can efficiently generate hydrogen by forming the positive electrodes 11 , 11 c , and 11 d , and the negative electrodes 12 , 12 c , and 12 d in a shape including a curved surface.
  • the hydrogen-containing water generating electrodes 10 , 10 a , 10 b , 10 c , or 10 d is put in the raw water W and used, it is favorable to install the hydrogen-containing water generating electrode so that the curved surface portion faces upward (a side of a direction opposite to a direction in which the gravity acts).
  • the openings 11 H, 12 H, and 13 H included in the positive electrode 11 , the negative electrode 12 , and the insulator 13 will be described.
  • FIG. 12 is a diagram illustrating a partially enlarged positive electrode and a partially enlarged negative electrode.
  • FIG. 13 is an enlarged view of openings included in the positive electrode and the negative electrode.
  • FIG. 14 is a B-B cross-sectional view of FIG. 12 .
  • FIG. 15 is a diagram illustrating a partially enlarged insulator.
  • the positive electrode 11 and the negative electrode 12 are net-like members in which a plurality of linear portions 16 intersects with one another. The portion surrounded by the plurality of linear portions 16 serves as the openings 11 H and 12 H of the positive electrode 11 and the negative electrode 12 .
  • the openings 11 H and 12 H included in the positive electrode 11 and the negative electrode 12 have a rhombic shape.
  • one diagonal line (first diagonal line) TL 1 is longer than the other diagonal line (second diagonal line) TLs.
  • angles in apexes Pa and Pb on the first diagonal line TL 1 are smaller than angles in apexes Pc and Pd on the second diagonal line TLs.
  • the positive electrode 11 and the negative electrode 12 include the plurality of openings 11 H and 12 H, lines of electric force can be provided to an inside and to an outside through the openings 11 H and 12 H. Therefore, both surface of the positive electrode 11 and the negative electrode 12 can be used for electrolysis, and thus hydrogen can be efficiently generated. Further, the negative electrode 12 can cause a wet angle of the bubbles of hydrogen generated by the negative electrode 12 itself to be small, with the opening 12 H surrounded by the linear portions 16 , and thus can cause the bubbles of hydrogen to be separated in a small state. That is, absorption power caused between the generated hydrogen and a surface of the negative electrode 12 almost becomes in a point contact state, and surface tension is suppressed. Therefore, as a result, the negative electrode 12 can cause the bubbles of hydrogen to be separated in a small state, and can generate the hydrogen-containing water in which a large amount of hydrogen is dissolved.
  • cross sections of the linear portions 16 of the positive electrode 11 and the negative electrode 12 have a rectangular shape (a square shape in the example of FIG. 14 ), as illustrated in FIG. 14 .
  • the negative electrode 12 can cause the wet angle of the bubbles of hydrogen to be smaller with corners 16 T in the linear portion 16 to suppress the surface tension, and thus can cause the bubbles of hydrogen to be separated in a smaller state. Therefore, the negative electrode 12 can generate hydrogen water in which smaller bubbles of hydrogen are dissolved.
  • the negative electrode 12 includes the linear portion 16 with a rectangular cross section, and thus can cause a surface area that can be used for generation of hydrogen to be large. According to these functions, efficiency to dissolve hydrogen in the raw water of the negative electrode 12 is improved.
  • the first diagonal line TL 1 extends in the direction in which the positive electrode 11 and the negative electrode 12 extend, that is, in the longitudinal direction E, as illustrated in FIG. 13 .
  • the second diagonal line TLs extends in the circumferential direction C of the positive electrode 11 and the negative electrode 12 having a cylindrical shape.
  • the positive electrode 11 and the negative electrode 12 include the end-portion-side opening portions 10 HA and 10 HB in both sides in the longitudinal direction E, as illustrated in FIGS. 1 and 2 .
  • the bubbles of oxygen generated inside the positive electrode 11 are released through the end-portion-side opening portion 10 HA, 10 HB to the outside of the hydrogen-containing water generating electrode 10 , as illustrated in FIG. 3 .
  • the hydrogen-containing water generating electrode 10 can efficiently release the bubbles of oxygen to the outside.
  • angles of the apexes Pa and Pb on the first diagonal line TL 1 are acute angles. Therefore, the contact area between the bubbles of oxygen, and the linear portion 16 can be made small. As a result, the bubbles of oxygen can be easily separated from the linear portion 16 . Therefore, the hydrogen-containing water generating electrode 10 can efficiently release the bubbles of oxygen to the outside.
  • the linear portion 16 includes the corners 16 T, the wet angle of the bubbles of oxygen can be made smaller with the corners 16 T, and the surface tension can be suppressed.
  • the positive electrode 11 can cause the bubbles of oxygen to be promptly separated from the linear portion 16 , and moved to the end-portion-side opening portions 10 HA and 10 HB. Therefore, the hydrogen-containing water generating electrode 10 can efficiently release the bubbles of oxygen to the outside. Further, in the process in which the bubbles of oxygen are moved along the inside of the positive electrode 11 , the bubbles take in bubbles of oxygen newly generated on the positive electrode 11 side, and grow. Therefore, the contact area between the bubbles of oxygen, and the raw water W can be made small, and dissolving of oxygen to the raw water W can be suppressed.
  • the insulator 13 is a net-like member in which a plurality of linear members 17 intersect with one another, and a portion surrounded by the linear members 17 is the opening 13 H.
  • the opening 13 H has a rectangular shape (a square shape in the present embodiment).
  • the length of one side is La
  • the length of a side adjacent to the side of La is Lb in the opening 13 H.
  • the side having the length of La is parallel to the longitudinal direction E of the positive electrode 11 and the negative electrode 12
  • the side having the length of Lb is parallel to the circumferential direction C of the positive electrode 11 and the negative electrode 12 having a cylindrical shape.
  • the opening 11 H of the positive electrode 11 and the opening 12 H of the negative electrode 12 are larger than the opening 13 H of the insulator 13 .
  • the area of the openings 11 H and 12 H is Ll ⁇ Ls/2 where the length of the first diagonal line TL 1 is Ll, and the length of the second diagonal line TLs is Ls.
  • the area (opening area) of the opening 13 H is La ⁇ Lb. Therefore, Ll ⁇ Ls/2>La ⁇ Lb is satisfied.
  • the length Ll of the first diagonal line TL 1 is 6 mm
  • the length Ls of the second diagonal line TLs is 3 mm. Therefore, the area of the openings 11 H and 12 H is 9 mm 2 .
  • the area (opening area) of the opening 13 H becomes 1.12 mm 2 .
  • the area of the openings 11 H and 12 H of the positive electrode 11 and the negative electrode 12 is about eight times the area of the opening 13 H.
  • the hydrogen-containing water generating electrode 10 can avoid the mutual contact of the positive electrode 11 and the negative electrode 12 through the opening 13 H of the insulator 13 , by causing the opening 13 H of the insulator 13 to be smaller than the openings 11 H and 12 H of the positive electrode 11 and the negative electrode 12 .
  • the hydrogen-containing water generating electrode 10 can avoid short-circuit of the positive electrode 11 and the negative electrode 12 , and can secure insulation of these electrodes, even if the distance between the positive electrode 11 and the negative electrode 12 is made small. Therefore, the hydrogen-containing water generating electrode 10 is suitable for the system being put in the raw water W, which is required to suppress the voltage applied to the positive electrode 11 and the negative electrode 12 to be low.
  • the insulator 13 is a net-like member in which the plurality of linear members 17 intersects with one another.
  • the insulator 13 is allowed to have deformation in the thickness direction to some extent. Therefore, when the hydrogen-containing water generating electrode 10 is subject to vibration or impact, the insulator 13 can absorb the vibration or the impact. If the net-like member in which the plurality of linear members 17 intersect with one another is used as the insulator 13 , the insulator 13 is suitable for the portable hydrogen-containing water generating electrode 10 , which can be moved and carried.
  • the opening 13 H of the insulator 13 is smaller than the openings 11 H and 12 H of the positive electrode 11 and the negative electrode 12 . Therefore, the bubbles of oxygen generated on the positive electrode 11 side are captured with the linear members 17 of the insulator 13 , and large bubbles can be made.
  • the hydrogen-containing water generating electrode 10 can generate the hydrogen-containing water having a high dissolution ratio of the bubbles of hydrogen. Further, when the bubbles of oxygen become large, buoyancy becomes large. As a result, the bubbles of oxygen can be easily moved inside the positive electrode 11 , and can easily pass through the opening 13 H. Therefore, the hydrogen-containing water generating electrode 10 can easily release the bubbles of oxygen from the inside.
  • the hydrogen-containing water generating electrode 10 can promptly separate the bubbles of hydrogen, which are generated at the negative electrode 12 , from the negative electrode 12 , and can cause the bubbles of hydrogen to be dissolved in the raw water W.
  • a method of manufacturing the hydrogen-containing water generating electrode 10 will be described.
  • FIG. 16 is a flowchart of a method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • FIGS. 17 to 26 are diagrams illustrating respective steps of the method of manufacturing the hydrogen-containing water generating electrode according to the present embodiment.
  • a positive electrode material 11 M and a negative electrode material 12 M as conductors are bent to form members having an approximately cylindrical shape.
  • the positive electrode material 11 M and the negative electrode material 12 M are plate-like conductors having a plurality of openings (corresponding to the opening 11 H of the positive electrode 11 and the opening 12 H of the negative electrode 12 illustrated in FIG. 4 and other figures, and omitted in FIGS.
  • the members having an approximately cylindrical shape which are the bent positive electrode material 11 M and negative electrode material 12 M, have the slits 11 SL and 12 SL that are each a removed portion in a circumferential direction C and extend in the longitudinal direction E, that is, in a direction in which the members having an approximately cylindrical shape extend.
  • the slit 11 SL is formed between facing end portions 11 MT and 11 MT of the positive electrode material 11 M.
  • the slit 12 SL is formed between facing end portions 12 MT and 12 MT of the negative electrode material 12 M.
  • the longitudinal direction E of the positive electrode material 11 M is parallel to the first diagonal line TL 1 of the opening 11 H of the positive electrode material illustrated in FIG. 19 .
  • the first diagonal line TL 1 of the opening 11 H is longer than the second diagonal line TLs. Therefore, in the opening 11 H illustrated in FIG. 19 , the second diagonal line TLs shorter than the first diagonal line TL 1 extends in the circumferential direction C of the member having an approximately cylindrical shape that is the bent positive electrode material 11 M.
  • the positive electrode material 11 M can be easily bent in a cylindrical manner, and dimension accuracy of the positive electrode 11 can be easily secured.
  • the longitudinal direction E of the negative electrode material 12 M is parallel to the first diagonal line TL 1 of the opening 12 H of the negative electrode material illustrated in FIG. 20 .
  • the first diagonal line TL 1 of the opening 12 H is longer than the second diagonal line TLs. Therefore, in the opening 12 H illustrated in FIG. 20 , the second diagonal line TLs shorter than the first diagonal line TL 1 extends in the circumferential direction C of the member having an approximately cylindrical shape that is the bent negative electrode material 12 M.
  • the negative electrode material 12 M can be easily bent in a cylindrical manner, and dimension accuracy of the negative electrode 12 can be easily secured.
  • a power feed member and a support member are mounted to each of the positive electrode material 11 M and the negative electrode material 12 M bent in the cylindrical shape (see FIGS. 21 and 22 ).
  • the power feed member is the positive-electrode power feed member 14 illustrated in FIG. 21 and the negative-electrode power feed member 15 illustrated in FIG. 22 .
  • the support member is the positive-electrode support member 18 illustrated in FIG. 21 and the negative-electrode support member 19 illustrated in FIG. 22 .
  • the positive-electrode power feed member 14 and the positive-electrode support member 18 are mounted to an inner side surface 11 Mi of the bent positive electrode material 11 M.
  • the positive-electrode power feed member 14 and the positive-electrode support member 18 are connected and mounted to the positive electrode material 11 M such that the longitudinal direction becomes parallel to the first diagonal line TL 1 of the opening 11 H illustrated in FIG. 19 .
  • the positive-electrode power feed member 14 and the positive-electrode support member 18 are joined with the positive electrode material 11 M by welding, for example. Therefore, the positive-electrode power feed member 14 and the positive electrode material 11 M are electrically connected.
  • the negative-electrode power feed member 15 and the negative-electrode support member 19 are mounted to an outer side surface 12 Mo of the bent negative electrode material 12 M.
  • the negative-electrode power feed member 15 and the negative-electrode support member 19 are connected and mounted to the negative electrode material 12 M such that the longitudinal direction becomes parallel to the first diagonal line TL 1 of the opening 12 H illustrated in FIG. 20 .
  • the negative-electrode power feed member 15 and the negative-electrode support member 19 are joined with the negative electrode material 12 M by welding, for example. Therefore, the negative-electrode power feed member 15 and the negative electrode material 12 M are electrically connected.
  • the positive electrode material 11 M to which the positive-electrode power feed member 14 and the positive-electrode support member 18 are mounted, and the negative electrode material 12 M to which the negative-electrode power feed member 15 and the negative-electrode support member 19 are mounted are subjected to plating (platinum plating in the present embodiment).
  • plating platinum plating in the present embodiment.
  • plating is not applied to the negative electrode 12 , plating is applied to only the positive electrode material 11 M to which the positive-electrode power feed member 14 and the positive-electrode support member 18 are mounted. In this way, the positive electrode 11 and the negative electrode 12 are completed.
  • Both of the positive electrode 11 and the negative electrode 12 are a tubular conductor, include a plurality of openings in a side portion, and include the slit 11 SL and 12 SL that are each a removed portion in the circumferential direction and extend in the longitudinal direction E, that is, in the direction in which the tubular conductors extend.
  • step S 103 a side portion 11 S of the positive electrode 11 that is a tubular conductor and has a plurality of openings 11 H in the side portion 11 S is covered with the net-like insulator 13 .
  • the position of the slit 11 SL is not especially limited.
  • step S 104 as illustrated in FIG. 24 , the positive electrode 11 and the insulator 13 are passed through the slit 12 SL, and the negative electrode 12 is mounted to an outside of the insulator 13 .
  • the slit 12 SL is enlarged.
  • the positive electrode 11 and the insulator 13 are arranged inside the negative electrode 12 , at step S 105 , the enlarged slit 12 SL is closed.
  • the restraining members 40 are mounted to an outside of the negative electrode 12 , and restrains the negative electrode 12 , the insulator 13 , and the positive electrode 11 .
  • the plurality of restraining members 40 is mounted between the negative-electrode power feed member 15 and the negative-electrode support member 19 .
  • a resin cable tie or a metal line material having high corrosion resistance and not dissolved in the raw water W can be used.
  • the negative electrode 12 , the insulator 13 , and the positive electrode 11 are restrained by the restraining members 40 , so that the hydrogen-containing water generating electrode 10 is completed, as illustrated in FIG. 26 .
  • An excess insulator 13 may be taken out through the closed slit 12 SL to an outside of the negative electrode 12 .
  • the positive electrode 11 is a conductor and is an elastic body, and deformation to close the slit 11 SL is deformation within a range of elastic deformation of the material of the positive electrode 11 . Therefore, when the slit 11 SL of the positive electrode 11 is closed, force to open the closed slit 11 SL is caused in the positive electrode 11 .
  • the force caused in the positive electrode 11 acts to press the positive electrode 11 and the insulator 13 to the negative electrode 12 .
  • the insulator 13 is reliably in contact with the positive electrode 11 and the negative electrode 12 , and the gap formed between the positive electrode 11 and the negative electrode 12 is accurately defined by the thickness of the insulator 13 . Further, deviation between the positive electrode 11 , the insulator 13 , and the negative electrode 12 are suppressed by the force caused in the positive electrode 11 . In this way, the hydrogen-containing water generating electrode 10 used in a portable device can be manufactured.
  • the method of manufacturing a hydrogen-containing water generating electrode according to the present embodiment does not use joining such as welding except that the power feed member and the support member are mounted to the positive electrode material 11 M and the negative electrode material 12 M. Therefore, the hydrogen-containing water generating electrode 10 can be easily disassembled into the positive electrode 11 , the negative electrode 12 , and the insulator 13 by removing the restraining members 40 . Therefore, maintenance, inspection, repair, and part replacement can be easily performed. Further, recycling of the hydrogen-containing water generating electrode 10 is also easy.
  • a hydrogen-containing water generating device including the hydrogen-containing water generating electrode 10 will be described.
  • FIG. 27 is a diagram illustrating a hydrogen-containing water generating device according to the present embodiment.
  • FIG. 28 is a diagram illustrating a first support included in the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 29 is a diagram illustrating a second support included in the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 30 is a diagram illustrating an opening of a protection member and an opening of a negative electrode included in the hydrogen-containing water generating device according to the present embodiment.
  • a hydrogen-containing water generating device 100 is a device that includes the above-described hydrogen-containing water generating electrode 10 , puts in the raw water W, and generates the hydrogen-containing water.
  • the hydrogen-containing water generating device 100 includes a first support 101 , a second support 102 , and the hydrogen-containing water generating electrode 10 .
  • the hydrogen-containing water generating device 100 further includes a protection member 103 .
  • the first support 101 is mounted to a first end portion 10 T 1 side of the hydrogen-containing water generating electrode 10 .
  • the first support 101 includes a first installation portion 101 C that comes in contact with the installing object FL of the hydrogen-containing water generating device 100 .
  • the installing object FL is, for example, a bottom portion of a bath or a bottom portion of a drinking water tank.
  • the first installation portion 101 C is a side portion around the central axis Zt of the hydrogen-containing water generating electrode 10 , of side portions of the first support 101 .
  • the second support 102 is mounted to a second end portion 10 T 2 side of the hydrogen-containing water generating electrode 10 .
  • the second support 102 includes a second installation portion 102 C that comes in contact with the installing object FL.
  • the second installation portion 102 C is a side portion around the central axis Zt of the hydrogen-containing water generating electrode 10 , of side portions of the second support 102 .
  • a distance (second-support-side height) h 2 of the second support 102 from the side portion 11 S of the positive electrode 11 to the second installation portion 102 C in a direction perpendicular to the side portion 11 S of the positive electrode 11 included in the hydrogen-containing water generating electrode 10 is larger than a distance (first-support-side height) h 1 from the side portion 11 S of the positive electrode 11 to the first installation portion 101 C in the direction perpendicular to the side portion 11 S of the positive electrode 11 . Therefore, a height H 1 of the first support 101 illustrated in FIG. 28 is smaller than a height H 2 of the second support 102 illustrated in FIG. 29 .
  • both of the first-support-side height h 1 and the second-support-side height h 2 are based on portions installed on the installing object FL.
  • the first end portion 10 T 1 of the hydrogen-containing water generating electrode 10 corresponds to the first end portions 11 T 1 and 12 T 1 of the positive electrode 11 and the negative electrode 12 illustrated in FIG. 4 and other figures
  • the second end portion 10 T 2 corresponds to the second end portions 11 T 2 and 12 T 2 of the positive electrode 11 and the negative electrode 12
  • a direction perpendicular to a side portion 12 S of the negative electrode 12 corresponds to the direction perpendicular to the central axis Zt of the hydrogen-containing water generating electrode 10 .
  • the first support 101 and the second support 102 are manufactured by molding a resin, for example. The first support 101 and the second support 102 instruct the hydrogen-containing water generating electrode 10 when being installed on the installing object FL.
  • the protection member 103 is a tubular (a cylindrical shape in the present embodiment) member, and includes a plurality of openings 103 H in the side portion.
  • the plurality of openings 103 H included in the protection member 103 penetrates the side portion of the protection member 103 in the thickness direction of the protection member 103 .
  • the protection member 103 is provided outside the hydrogen-containing water generating electrode 10 , to be specific, outside the negative electrode 12 .
  • a first end portion 103 T 1 of the protection member 103 is supported by the first support 101
  • a second end portion 103 T 2 is supported by the second support 102 .
  • the hydrogen-containing water generating electrode 10 and the protection member 103 are supported by the first support 101 and the second support 102 at both end portion sides.
  • the protection member 103 is provided outside the hydrogen-containing water generating electrode 10 , and protects the hydrogen-containing water generating electrode 10 . Further, the protection member 103 is put in the raw water W and is in contact with the raw water W at the time of use of the hydrogen-containing water generating device 100 . Therefore, the protection member 103 is made of stainless steel or the like having high strength and corrosion resistance.
  • the protection member 103 mounted to the first support 101 and the second support 102 has strength of some extent to protect the hydrogen-containing water generating electrode 10 . Therefore, the protection member 103 also functions as a structure member for securing the strength of the hydrogen-containing water generating device 100 together with the first support 101 and the second support 102 .
  • the first support 101 includes a first opening portion 101 H as an opening portion connected with a space surrounded by the side portion of the positive electrode 11 .
  • the second support 102 includes a second opening portion 102 H as an opening portion connected with a space surrounded by the side portion of the positive electrode 11 .
  • the first opening portion 101 H and the second opening portion 102 H connect an inner portion of the positive electrode 11 of the hydrogen-containing water generating electrode 10 and an outside, and serve as a passage of bubbles of oxygen generated on the positive electrode 11 side.
  • At least one of the first support 101 and the second support 102 may have the opening portion connected with the space surrounded by the side portion of the positive electrode 11 .
  • the hydrogen-containing water generating electrode 10 is inclined with respect to a ground plane of the installing object FL such that, toward the second support 102 from the first support 101 , the distance from the installing object FL becomes large.
  • the positive electrode 11 of the hydrogen-containing water generating electrode 10 has a tubular shape, and the shape of a cross section perpendicular to the central axis Zt is constant in a direction parallel to the central axis Zt.
  • the positive electrode 11 especially, the inside of the positive electrode 11 of the side separated from the first installation portion 101 C and the second installation portion 102 C (an upper inside of the positive electrode) is inclined such that, toward the second support 102 from the first support 101 , the distance from the installing object FL becomes large.
  • the positive electrode 11 and the upper inside of the positive electrode of the positive electrode 11 in hydrogen-containing water generating device 100 By causing the positive electrode 11 and the upper inside of the positive electrode of the positive electrode 11 in hydrogen-containing water generating device 100 to be inclined as described above, the bubbles of oxygen generated on the positive electrode 11 side are gathered to an upper side of the positive electrode 11 . Then, the bubbles of oxygen are moved toward the second opening portion 102 H of the second support 102 along the upper inside of the positive electrode due to influence of buoyancy, and are released to the outside of the hydrogen-containing water generating device 100 , to be specific, to the outside of the hydrogen-containing water generating electrode 10 .
  • the positive electrode 11 is inclined so as to be away from the ground plane of the installing object FL toward the second opening portion 102 H, and thus can efficiently and promptly release the bubbles of oxygen in the positive electrode 11 through the second opening portion 102 H to the outside, using the buoyancy of the bubbles of oxygen. Therefore, the hydrogen-containing water generating device 100 can release the bubbles of oxygen in the positive electrode 11 to the outside even if there is no passing water to the hydrogen-containing water generating electrode 10 .
  • An angle (angle of inclination) formed by the hydrogen-containing water generating electrode 10 and the ground plane of the installing object FL is ⁇ .
  • the angle of inclination ⁇ is an angle formed by a virtual ground plane FLv parallel to the ground plane of the installing object FL, and the central axis Zt of the hydrogen-containing water generating electrode 10 , for convenience.
  • the angle of inclination ⁇ is preferably 0.5 degrees or more from a perspective of efficient release of the bubbles of oxygen to the outside of the hydrogen-containing water generating electrode 10 , more preferably 1 degree or more, and still more preferably 1.5 degrees or more. If the angle of inclination ⁇ falls within these ranges, the hydrogen-containing water generating device 100 can efficiently and promptly release the bubbles in the hydrogen-containing water generating electrode 10 .
  • the angle of inclination ⁇ is made large, the bubbles of oxygen generated in the positive electrode 11 are released into the raw water before being united and becoming a sufficient size. As a result, if the angle of inclination ⁇ is large, the amount of oxygen dissolved in the raw water tends to be increased.
  • the angle is preferably 5 degrees or less from a perspective of suppression of the amount of oxygen dissolved in the raw water, more preferably 4 degrees or less, still more preferably 3 degrees or less. If the angle of inclination ⁇ falls within these ranges, the hydrogen-containing water generating device 100 can suppress the amount of oxygen dissolved in the raw water.
  • the angle of inclination ⁇ falls within these ranges, an excessive increase in the height of the hydrogen-containing water generating device 100 , to be specific, the height H 2 of the second support 102 illustrated in FIG. 27 can be suppressed, and the hydrogen-containing water generating device 100 can be made compact.
  • the angle of inclination ⁇ is preferably from 0.5 to 5 degrees, both inclusive, more preferably from 1 to 4 degrees, both inclusive, and still more preferably from 1.5 to 3 degrees, both inclusive. In the present embodiment, the angle of inclination ⁇ is 2 degrees.
  • the hydrogen-containing water generating device 100 includes the first opening portion 101 H in the first support 101 , and the second opening portion 102 H in the second support 102 . Therefore, the hydrogen-containing water generating electrode 10 can be washed from at least one of the first opening portion 101 H and the second opening portion 102 H. For example, dirt and the like of the hydrogen-containing water generating electrode 10 , especially, of the positive electrode 11 can be removed by jetting rinse water to the hydrogen-containing water generating electrode 10 with a hose or the like through the first opening portion 101 H, or by inserting a brush or the like through the first opening portion 101 H.
  • the hydrogen-containing water generating device 100 includes the first opening portion 101 H and the second opening portion 102 H, and thus enables work in washing the hydrogen-containing water generating electrode 10 to become easy.
  • minerals deposited on the surfaces of the positive electrode 11 and the negative electrode 12 of the hydrogen-containing water generating electrode 10 are removed by immersing the hydrogen-containing water generating device 100 in a cleaning solution (for example, an aqueous solution of citric acid) for a predetermined time.
  • a cleaning solution for example, an aqueous solution of citric acid
  • the hydrogen-containing water generating device 100 can obtain the above-described functions and effects as long as including at least one of the first opening portion 101 H and the second opening portion 102 H.
  • a relationship between the opening 103 H of the protection member 103 and the opening 12 H of the negative electrode 12 will be described.
  • the shape of the opening 103 H of the protection member 103 is a circle with a diameter of D.
  • the opening 103 H of the protection member 103 is larger than the opening 12 H of the negative electrode 12 .
  • the area of the opening 103 H is ⁇ D 2 /4, and the area of the opening 12 H is Ll ⁇ Ls/2, and thus ⁇ D 2 /4>Ll ⁇ Ls/2 is satisfied. In doing so, the bubbles of hydrogen generated on the negative electrode 12 side can efficiently pass through the opening 103 H of the protection member 103 , and can be efficiently dissolved in the raw water W.
  • the opening 103 H of the protection member 103 is formed into a circular shape, so that the opening 103 H can be easily manufactured.
  • FIG. 31 is a diagram illustrating another use state of the hydrogen-containing water generating device according to the present embodiment.
  • the hydrogen-containing water generating device 100 may be installed so that the second opening portion 102 H side of the second support 102 faces the installing object FL.
  • the hydrogen-containing water generating device 100 may be installed so that the first opening portion 101 H side of the first support 101 faces the installing object FL.
  • the central axis Zt of the hydrogen-containing water generating electrode 10 becomes perpendicular to the ground plane of the installing object FL.
  • the bubbles of oxygen generated on the positive electrode 11 side of the hydrogen-containing water generating electrode 10 are released into the raw water W through the first opening portion 101 H of the first support 101 arranged at an opposite side to the installing object FL.
  • the hydrogen-containing water generating device 100 When the hydrogen-containing water generating device 100 is installed so that the first opening portion 101 H side of the first support 101 faces the installing object FL, the bubbles of oxygen generated on the positive electrode 11 side of the hydrogen-containing water generating electrode 10 are released into the raw water W through the second opening portion 102 H of the second support 102 .
  • both of the first support 101 and the second support 102 of the hydrogen-containing water generating device 100 may be installed on the installing object FL, or only the second support 102 may be installed on the installing object FL. Therefore, the hydrogen-containing water generating device 100 can be used in a different form according to a use environment.
  • FIGS. 32 and 33 are diagrams illustrating mounting structures of when the hydrogen-containing water generating electrode is mounted to the hydrogen-containing water generating device according to the present embodiment.
  • FIG. 34 is a diagram illustrating another mounting structure of when the hydrogen-containing water generating electrode is mounted to the hydrogen-containing water generating device according to the present embodiment.
  • FIGS. 32 and 33 illustrate a case in which the hydrogen-containing water generating device 100 is used being put in a bath. As illustrated in FIGS. 32 and 33 , in the present embodiment, the hydrogen-containing water generating electrode 10 is supported by the first support 101 and the second support 102 with the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the hydrogen-containing water generating electrode 10 can be mounted to the first support 101 and the second support 102 with a relatively simple structure.
  • the positive-electrode power feed member 14 protruding from the first end portion 11 T 1 side of the positive electrode 11 and the negative-electrode power feed member 15 protruding from the first end portion 12 T 1 side of the negative electrode 12 are mounted to the first support 101 .
  • the first support 101 corresponds to the mounting object ST 1 illustrated in FIG. 4 .
  • the positive-electrode support member 18 protruding from the second end portion 11 T 2 side of the positive electrode 11 and the negative-electrode support member 19 protruding from the second end portion 12 T 2 side of the negative electrode 12 are mounted to the second support 102 .
  • the second support 102 corresponds to the mounting object ST 2 illustrated in FIG. 4 .
  • the first support 101 includes a mounting seat 101 B, a tubular side-portion-side cover 101 CS, and a plate-like cover 101 CB.
  • the mounting seat 101 B supports the hydrogen-containing water generating electrode 10 and the protection member 103 .
  • the mounting seat 101 B includes a tubular member (hereinafter, referred to as tubular member) 101 IW at an opposite side to the hydrogen-containing water generating electrode 10 .
  • the tubular member 101 IW extends toward a direction being away from the mounting seat 101 B.
  • An inside of the tubular member 101 IW serves as a passage that connects the inside of the positive electrode 11 and the outside of the first support member 101 .
  • the cover 101 CB is mounted to an end portion of the side-portion-side cover 101 CS and an end portion of the tubular member 101 IW.
  • the cover 101 CB includes an opening 101 CBH connected with the inside of the tubular member 101 IW.
  • the tubular member 101 IW to be specific, the inside of the tubular member 101 IW and the opening 101 CBH of the cover 101 CB serve as the first opening portion 101 H.
  • the mounting seat 101 B is a member to which the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are mounted, and supports the hydrogen-containing water generating electrode 10 through the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the positive-electrode power feed member 14 and the negative-electrode power feed member 15 are mounted to and supported by the mounting seat 101 B with bolts 32 respectively screwed into the male screws 14 S and 15 S, as illustrated in FIG. 32 .
  • the first end portions 11 T 1 and 12 T 1 of the positive electrode 11 and the negative electrode 12 are in contact with a mounting surface 101 P that is one surface of the mounting seat 101 B.
  • the mounting seat 101 B is held by the first end portions 11 T 1 and 12 T 1 of the positive electrode 11 and the negative electrode 12 , and the bolts 32 and 32 .
  • the hydrogen-containing water generating electrode 10 is mounted to and supported by the mounting seat 101 B through the positive-electrode power feed member 14 and the negative-electrode power feed member 15 .
  • the first opening portion 101 H included in the first support 101 faces the opening portions of the positive electrode 11 and the negative electrode 12 , the opening portions being at the side of the first end portions 11 T 1 and 12 T 1 . Therefore, the bubbles of oxygen in the positive electrode 11 pass through the first opening portion 101 H, and are released to the outside of the hydrogen-containing water generating device 100 .
  • the terminal 34 that connects the positive-electrode power feed member 14 and wiring 25 , and the terminal 34 that connects the negative-electrode power feed member 15 and wiring 25 are arranged in a space (first-support-member inner space) 101 SP surrounded by the mounting seat 101 B, the cover 101 CB, the side-portion-side cover 101 CS, and the tubular member 101 IW.
  • the wiring 25 is pulled out to the outside from the first-support-member inner space 101 SP through a grommet 26 provided in a hole 102 SPH provided in the side-portion-side cover 101 CS.
  • the wiring 25 is electrically connected with the terminals 34 and 34 .
  • the grommet 26 lying between the wiring 25 and the side-portion-side cover 101 CS of the first support 101 is a member that protects the wiring 25 , and waterproofs the first-support-member inner space 101 SP, and is made of, for example, rubber.
  • a waterproof agent is filled in the first-support-member inner space 101 SP.
  • the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the terminal 34 , and the wiring 25 are waterproofed with the waterproof agent.
  • the positive-electrode support member 18 and the negative-electrode support member 19 are mounted to and supported by the second support member 102 with the bolts 31 respectively screwed into the male screws 18 S and 19 S.
  • the second end portions 11 T 2 and 12 T 2 of the positive electrode 11 and the negative electrode 12 are in contact with a mounting surface 102 P that is one surface of the second support member 102 .
  • the second support member 102 is held by the second end portions 11 T 2 and 12 T 2 of the positive electrode 11 and the negative electrode 12 , and the bolts 31 and 31 .
  • the bolts 31 are embedded in a spot facing hole 102 BH provided in a surface at an opposite side to the mounting surface 102 P of the second support member 102 .
  • the hydrogen-containing water generating electrode 10 is mounted to and supported by the second support member 102 through the positive-electrode support member 18 and the negative-electrode support member 19 .
  • the second support member 102 also supports the protection member 103 , in addition to the first support member 101 .
  • both end portions of the hydrogen-containing water generating electrode 10 and the protection member 103 in the longitudinal direction are respectively supported by the first support member 101 and the second support member 102 .
  • the hydrogen-containing water generating device 100 reliably supports the hydrogen-containing water generating electrode 10 and the protection member 103 from both sides in the longitudinal direction, and can be of a firm structure.
  • a first support 101 a included in a hydrogen-containing water generating device 100 a illustrated in FIG. 34 includes a mounting seat 101 Ba, a tubular side-portion-side cover 101 CSa, and a plate-like cover 101 CBa.
  • the mounting seat 101 Ba does not include the tubular member 101 IW, which is included in the mounting seat 101 B illustrated in FIG. 32 . Therefore, the first support 101 a does not include the first opening portion 101 H, which is included in the first support 101 illustrated in FIG. 32 .
  • the positive-electrode power feed member 14 , the negative-electrode power feed member 15 , the terminals 34 , and the wiring 25 are arranged in a first-support-member inner space 101 SPa surrounded by the mounting seat 101 Ba, the side-portion-side cover 101 CSa, and the cover 101 CBa.
  • a waterproof agent is filled in the first-support-member inner space 101 SPa.
  • Other structures of the first support 101 a , and a relationship with the hydrogen-containing water generating electrode 10 are similar to those of the first support 101 illustrated in FIG. 32 .
  • the second support 102 illustrated in FIG. 33 is applied to the hydrogen-containing water generating device 100 a as it is.
  • the wiring 25 is connected with the power source 20 through a connector 27 .
  • the power source 20 is, for example, a secondary battery, and is a lead storage battery in the present embodiment.
  • the power source 20 includes a control panel 21 .
  • the control panel 21 includes a control device (for example, a microcomputer) 21 C, a power source switch 22 , and a display device 23 .
  • the display device 23 is, for example, a single or a plurality of light-emitting diodes or a liquid crystal display panel.
  • the power source 20 can be connected with an alternative current (AC) adaptor 24 for charging.
  • AC alternative current
  • the control device 21 C automatically stops the supply of the power when a predetermined time (for example, about 10 to 20 minutes) has passed from when the power source switch 22 is turned ON. In this way, when especially the hydrogen-containing water generating device 100 is put in a bath, and warm water containing hydrogen is generated, continuous supply of the power after the bathing is completed can be avoided. Therefore, the power consumption of the power source 20 can be suppressed.
  • a predetermined time for example, about 10 to 20 minutes
  • the AC adaptor 24 converts an alternative current into a direct current to charge the power source 20 .
  • the hydrogen-containing water generating device 100 generates the hydrogen-containing water with the direct-current power supplied from the power source 20 .
  • the hydrogen-containing water generating device 100 can generate the hydrogen-containing water with the direct-current power supplied from the AC adaptor 24 .
  • the control device 21 C switches the supply of the power to the hydrogen-containing water generating electrode 10 between the supply from the power source 20 and the supply from the AC adaptor 24 .
  • the display device 23 displays timing to charge the power source 20 , timing to wash or conduct maintenance of the hydrogen-containing water generating electrode 10 , and the like.
  • a control device 20 C blinks a charging notification lamp included in the display device 23
  • the control device 20 C blinks a washing notification lamp included in the display device 23 . In doing so, a user of the hydrogen-containing water generating device 100 can recognize the timing of charging and washing.
  • the control device 21 C stops an output of the power from the power source 20 , that is, causes the power source switch 22 to be in an OFF state. For example, when the current flowing in the hydrogen-containing water generating electrode 10 becomes a predetermined value or less, or 0, the control device 21 C stops the output of the power from the power source 20 . This is because, when the hydrogen-containing water generating electrode 10 is pulled up from the water, no raw water W exists between the positive electrode 11 and the negative electrode 12 , and as a result, the current flowing in the hydrogen-containing water generating electrode 10 becomes the predetermined value or less, or 0. Further, this is because, when the connector 27 is pulled out of the power source 20 , no current flows in the hydrogen-containing water generating electrode 10 through the wiring 25 .
  • the control device 21 C can improve safety by controlling the output of the power of the power source 20 .
  • the AC adaptor 24 is connected with the power source 20 to charge the power source 20 .
  • the charging of the power source 20 is not limited to such an embodiment.
  • the power source 20 may be charged by a non-contact charging system using electromagnetic induction. In doing so, waterproofing of the power source 20 and a charging device can be easily secured.
  • a modification of the hydrogen-containing water generating device 100 will be described.
  • FIGS. 35 to 37 are diagrams illustrating a modification of a hydrogen-containing water generating device according to the present embodiment.
  • foldable and storable legs 104 are taken out of a second support 102 b , and are installed on an installing object FL.
  • the leg 104 is, for example, a rod-like member rotating around a rotating shaft Zr provided at the installing object FL side of the second support 102 b , as illustrated in FIG. 36 .
  • the leg 104 is provided to each of both sides of the second support 102 b in a width direction.
  • the legs 104 are stored in storages 106 provided at the installing object FL side of the second support 102 b .
  • the legs 104 are taken out of the storages 106 , and rotated around the rotating shaft Zr. Then, end portions 104 S at an opposite side to the rotating shaft Zr come in contact with the installing object FL.
  • the hydrogen-containing water generating device 100 b is installed on the installing object FL with a first installation portion 101 C of a first support 101 , and the end portions 104 S of the legs 104 , as illustrated in FIG. 37 .
  • a second support 102 b is more separated from the installing object FL with the legs 104 , than the first support 101 . Therefore, a hydrogen-containing water generating electrode 10 of the hydrogen-containing water generating device 100 b is inclined with respect to a ground plane of the installing object FL such that, toward the second support 102 b from the first support 101 , the hydrogen-containing water generating electrode 10 is separated from the ground plane of the installing object FL.
  • an angle formed by a central axis Zt of the hydrogen-containing water generating electrode 10 , and the installing object FL is the above-described angle of inclination ⁇ .
  • the hydrogen-containing water generating device 100 b includes the storable legs 104 in the second support 102 . Therefore, the second support 102 b and the first support 101 can be of the same shape, and thus common components can be employed. Further, since the legs 104 are just taken out at the time of use, the second support 102 can be of an equal dimension to the first support 101 . Therefore, the second support 102 b can be made compact, and as a result, the hydrogen-containing water generating device 100 b can be made compact.
  • the present embodiment has been described. However, the present embodiment is not limited by the above-described content. Further, the above-described configuration elements include those which can be conceived by a person skilled in the art, which are substantially the same, and so-called equivalents. Further, the above-described configuration elements can be appropriately combined. Further, various omissions, replacements, and changes of the configuration elements can be made without departing from the gist of the present embodiment.

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