JP2018025061A - Private part washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a private part washing device which achieves low cost of a function for performing sterilization treatment by silver ions with respect to a part to be washed of the inside of a toilet bowl part or the private part washing device.SOLUTION: A private part washing device 1 includes: a washing nozzle 45d to which washing water is supplied from a water supply device 41, and which jets the washing water toward tip parts 45b1, 45c1 of nozzles 45b, 45c; a silver ion supply device 60 provided between the water supply device 41 and the washing nozzle 45d, and for supplying silver ions to the washing water; and a control device 50 for controlling at least the water supply device 41. The silver ion supply device 60 includes: an electrolytic cell 61 which uses the washing water as an electrolytic solution; an electrolytic electrode 62 provided in the electrolytic cell 61 so as to come into contact with the washing water, and having an anode 62a and a cathode 62b; a power source part 63 for supplying power to the electrolytic electrode 62. In the electrolytic electrode 62, only the anode 62a is made of silver.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a local cleaning apparatus.

  Patent Documents 1 to 3 show an apparatus (silver ion supply apparatus) that supplies silver ions into water using a silver electrode. These devices are used for sterilization treatment of water itself, and sterilization treatment of vegetables, fruits, medical equipment, toilets, etc. using water containing silver ions.

JP2015-211951A JP 2000-301150 A JP-A-8-155460

  By the way, in the local washing apparatus which wash | cleans the local part of a human body, from a viewpoint of cleanliness improvement, it sterilizes using the water which contains silver ion with respect to the site | part and stool part which are comparatively easy to get dirty, for example in a local washing apparatus. It is possible to do it. However, since silver is relatively expensive, when the above-described silver ion supply device is incorporated into the local cleaning device, the cost of the local cleaning device becomes a problem.

  The present invention has been made to solve the above-described problems, and in the local cleaning device, it is intended to reduce the cost of the function of performing sterilization treatment with silver ions on the portion to be cleaned or the toilet bowl of the local cleaning device. Objective.

  In order to solve the above-mentioned problem, a local cleaning device according to claim 1 is installed in a seat-type toilet having a toilet bowl, and the body water is ejected from the water supply source through the water supply device. A local cleaning device for cleaning a local part, wherein cleaning water is supplied from a water supply device and the cleaning water is sprayed into a toilet bowl or toward a portion to be cleaned of the local cleaning device, and a water supply device and a cleaning nozzle A silver ion supply device that supplies silver ions to the cleaning water, and a control device that controls at least the water supply device. The silver ion supply device includes an electrolytic bath that uses the cleaning water as an electrolytic solution, The tank includes an electrolytic electrode provided in contact with cleaning water and having an anode and a cathode, and a power supply unit that supplies power to the electrolytic electrode. The electrolytic electrode is made of silver only.

  According to this, since the cleaning nozzle sprays cleaning water containing silver ions having a sterilizing effect toward the portion to be cleaned or the toilet bowl of the local cleaning device, the portion to be cleaned or the toilet bowl of the local cleaning device is sterilized. It is processed. Further, since only the anode of the electrolytic electrode is made of silver, the cathode can be formed of a relatively low cost material. Therefore, in the local cleaning device, it is possible to reduce the cost of the function of performing the sterilization treatment with silver ions on the portion to be cleaned or the toilet bowl of the local cleaning device.

It is a perspective view which shows the local washing | cleaning apparatus by this invention. It is a schematic diagram of the local cleaning apparatus shown in FIG. It is a schematic diagram which shows the silver ion supply apparatus shown in FIG. It is a flowchart which the control apparatus shown in FIG. 2 performs.

  Hereinafter, an embodiment of a local cleaning apparatus according to the present invention will be described. As shown in FIG. 1, the local cleaning device 1 is attached to a sitting toilet 2. The seat-type toilet 2 has a toilet bowl 2a. The local cleaning device 1 cleans a local part of a human body by ejecting cleaning water supplied from a water pipe 3 (corresponding to a water supply source of the present invention; see FIG. 2) via a water supply device 41 (see FIG. 2). Is.

  The local cleaning device 1 includes a main body 10, a toilet seat 20, and a toilet lid 30 that covers the toilet seat 20. As shown in FIGS. 1 and 2, the main body 10 includes a main body casing 10 a, a cleaning function unit 40, and a control device 50.

  The main body casing 10a is formed in a hollow box shape. The main body casing 10a rotatably holds the toilet seat 20 and the toilet lid 30. The main casing 10 a houses the cleaning function unit 40 and the control device 50.

  The cleaning function unit 40 cleans the local part of the human body with the water supplied from the water pipe 3. The cleaning function unit 40 ejects water from the water pipe 3 as cleaning water toward a local part of the human body. As shown in FIG. 2, the cleaning function unit 40 includes a water supply device 41, a flow rate detection device 42, a heat exchange device 43, a pump 44, and a nozzle device 45.

  The cleaning function unit 40 includes four connection water channels L1 to L4 through which cleaning water flows. Each connection water channel L1-L4 is a tubular hose. The first connection water channel L <b> 1 connects the water supply device 41 and the flow rate detection device 42. The second connection water channel L <b> 2 connects the flow rate detection device 42 and the heat exchange device 43. The third connection water channel L3 connects the heat exchange device 43 and the pump 44. The fourth connection water channel L4 connects the pump 44 and the nozzle device 45 to each other.

  The washing water includes a water supply device 41, a first connection water channel L1, a flow rate detection device 42, a second connection water channel L2, a heat exchange device 43, a third connection water channel L3, a pump 44, a fourth connection water channel L4, and a nozzle. It flows in the order of the device 45.

  The water supply device 41 introduces cleaning water from the water pipe 3 into the cleaning function unit 40. The water supply device 41 is connected to a branch faucet 3a attached to the water supply pipe 3 via a water supply hose H through which cleaning water flows. The branch faucet 3a leads water (clean water) flowing through the water pipe 3 to the water supply hose H as cleaning water. The water supply apparatus 41 guides the wash water from the water supply hose H to the first connection water channel L1.

  The water supply device 41 is an electromagnetic valve that allows the flow of cleaning water when it is in an open state and restricts the flow of cleaning water when it is in a closed state. The water supply device 41 is a normally closed solenoid valve that is open when energized and closed when de-energized.

The flow rate detection device 42 detects the flow rate of cleaning water (flow rate per unit time). The flow rate detection device 42 is provided with a first temperature sensor 42a and a flow rate sensor 42b.
The 1st temperature sensor 42a detects the temperature (especially temperature of the installation place of the 1st temperature sensor 42a) of the washing water which flows through the flow volume detection apparatus 42. FIG. The temperature of the cleaning water detected by the first temperature sensor 42a is transmitted to the control device 50 as a detection signal.

  The flow rate sensor 42b detects the flow rate of cleaning water (in particular, the flow rate at the installation location of the flow rate sensor 42b (flow rate per unit time)). The flow sensor 42b is, for example, an impeller type flow sensor. The flow rate of the cleaning water detected by the flow sensor 42b is transmitted to the control device 50 as a detection signal.

  The heat exchange device 43 heats the cleaning water. When the local part of the human body is washed, the heat exchange device 43 heats the wash water so that the temperature of the wash water becomes a predetermined temperature (for example, 38 ° C.) set by the user. The heat exchange device 43 is provided with a heater 43a and a second temperature sensor 43b.

  The heater 43a heats the cleaning water in accordance with a control signal from the control device 50. When the washing water flows through the heat exchange device 43, the heater 43a directly contacts the washing water and heats the washing water from the water pipe 3. The heater 43a is a ceramic heater, for example.

  The second temperature sensor 43b detects the temperature of the cleaning water (in particular, the temperature at the place where the second temperature sensor 43b is installed). The second temperature sensor 43b detects the temperature of the cleaning water heated by the heater 43a. The temperature of the cleaning water detected by the second temperature sensor 43b is transmitted to the control device 50 as a detection signal.

  The pump 44 pulsates the wash water by changing the water channel volume. The pump 44 is a positive displacement reciprocating pump (for example, a diaphragm pump) configured to include a reciprocating piston (not shown). The pump 44 pulsates the cleaning water ejected from the nozzle device 45, so that even when the flow rate of the cleaning water is relatively small, the water force for cleaning the local part of the human body is strengthened compared to the case where the cleaning water does not pulsate. be able to.

  The nozzle device 45 ejects wash water from the fourth connection water channel L4 toward a local part of the human body. The nozzle device 45 includes a flow path switching valve 45a, a fifth connection water channel L5, a sixth connection water channel L6, a seventh connection water channel L7, a butt nozzle 45b, a bidet nozzle 45c, and a cleaning nozzle 45d.

  Each of the connection water channels L5, L6, and L7 is a flow channel through which the cleaning water flows, and is, for example, a tubular hose formed of silicon rubber and having flexibility. The fifth connection water channel L5 connects the flow path switching valve 45a and the buttocks nozzle 45b. The sixth connection water channel L6 connects the flow path switching valve 45a and the bidet nozzle 45c. The seventh connection water channel L7 connects the flow path switching valve 45a and the cleaning nozzle 45d.

  In accordance with a control signal from the control device 50, the flow path switching valve 45a supplies the wash water from the fourth connection water channel L4 to the fifth connection water channel L5, the sixth connection water channel L6, and the seventh connection water channel L7. It is derived by selectively switching to one of them. The flow path switching valve 45a is, for example, a four-way valve. The flow path switching valve 45a is provided so that the flow rate of the cleaning water can be adjusted by varying the flow path cross-sectional area of the water channel through which the cleaning water flows in accordance with a control signal from the control device 50.

The butt nozzle 45b performs butt cleaning. The buttocks nozzle 45b ejects wash water from the fifth connection water channel L5 toward a local part of the human body.
The bidet nozzle 45c performs bidet cleaning. The bidet nozzle 45c ejects wash water from the sixth connection water channel L6 toward a local part of the human body.

  The nozzles 45b and 45c are each formed in a straight cylindrical shape through which cleaning water flows. The nozzles 45b and 45c are provided with ejection holes (not shown) for ejecting washing water at the tip portions 45b1 and 45c1, respectively. Each of the nozzles 45b and 45c is arranged to be movable between a cleaning position and a storage position. The storage position is a position where all of the nozzles 45 b and 45 c are stored in the main body 10. The cleaning position is a position where the tip portions 45b1 and 45c1 side of the nozzles 45b and 45c are exposed to the outside from the main body 10 to clean the local part of the human body (see FIG. 1).

  The cleaning nozzle 45d is supplied with cleaning water from the water supply device 41, and ejects the cleaning water toward the portion to be cleaned of the local cleaning device 1. Specifically, the cleaning nozzle 45d is supplied with cleaning water from the seventh connection channel L7. The parts to be cleaned are the tip portions 45b1 and 45c1 of the nozzles 45b and 45c located at the storage positions. In addition, the wash water which wash | cleaned the to-be-cleaned part is derived | led-out to the toilet bowl part 2a.

  The cleaning function unit 40 further includes a silver ion supply device 60. The silver ion supply device 60 is provided between the water supply device 41 and the cleaning nozzle 45d, and supplies silver ions to the cleaning water. Specifically, the silver ion supply device 60 is provided in the seventh connection water channel L7. As shown in FIG. 3, the silver ion supply device 60 includes an electrolytic cell 61, an electrolytic electrode 62, a power supply unit 63, and an electrical resistance detection unit 64.

  The electrolytic bath 61 is formed in a hollow box shape, and the washing water flows inside. The electrolytic bath 61 uses cleaning water as an electrolytic solution in electrolysis. The electrolytic cell 61 is made of an insulating material such as a thermoplastic resin. The electrolytic bath 61 includes an inlet 61a for introducing the cleaning water from the flow path switching valve 45a and a lead-out port 61b for leading the cleaning water to the cleaning nozzle 45d. The introduction port 61 a is disposed at the lower end portion of the electrolytic cell 61, and the outlet port 61 b is disposed at the upper end portion of the electrolytic cell 61. Accordingly, when the cleaning water flows through the electrolytic bath 61, the electrolytic bath 61 is filled with the cleaning water, so that the cleaning water and the electrolytic electrode 62 come into contact with each other. The introduction port 61a is formed so as to open toward a side surface of a base portion 62a1 of an anode 62a described later in the electrolytic electrode 62.

The electrolytic electrode 62 is provided in the electrolytic bath 61 so as to be in contact with cleaning water. The electrolytic electrode 62 includes an anode 62a and a cathode 62b.
The anode 62a includes a base 62a1 and a protrusion 62a2. The base 62a1 is formed in a rod shape with the axis straight. A protruding portion 62a2 having a protruding end 62a3 is provided at one end of the base portion 62a1 (the upper end in FIG. 3). The protrusion 62a2 is formed so as to protrude from one end of the base 62a1 along the axial direction of the base 62a1. The protruding end 62a3 of the protruding portion 62a2 is formed in a planar shape. Further, the protrusion 62a2 and the base 62a1 are integrally formed in a straight rod shape. All of the anode 62a (base 62a1 and protrusion 62a2) is made of silver.

  The cathode 62b includes a base 62b1 and a protrusion 62b2. The base 62b1 is formed in a rod shape with the axis straight. A protruding portion 62b2 having a protruding end 62b3 is provided at one end of the base portion 62b1 (the lower end in FIG. 3). The protrusion 62b2 is formed so as to protrude from one end of the base 62b1 along the axial direction of the base 62b1. The protruding end 62b3 of the protruding portion 62b2 is formed in a planar shape. Further, the projecting portion 62b2 and the base portion 62b1 are integrally formed in a straight bar shape. The axial length of the cathode 62b is set to be shorter than the axial length of the anode 62a.

  The cathode 62b is provided by a conductive material other than silver. The conductive material is, for example, stainless steel, gold, platinum, or carbon. The protruding end 62a3 of the anode 62a and the protruding end 62b3 of the cathode 62b are provided so as to face each other.

  The power supply unit 63 supplies power to the electrolytic electrode 62. Specifically, the power supply unit 63 is a power supply circuit that outputs a DC voltage to the electrolytic electrode 62. The positive electrode of the power supply part 63 is electrically connected to the anode 62a through the electric wire 63a. The negative electrode of the power supply unit 63 is electrically connected to the cathode 62b through the electric wire 63b. The power supply unit 63 supplies power in accordance with a control command from the control device 50.

  When washing water is supplied into the electrolytic cell 61 and power is supplied to the electrolytic electrode 62 by the power supply unit 63, silver ions are eluted by dissolution of the anode 62a by electrolysis. Is supplied with silver ions. Since silver ions have bactericidal properties, the bactericidal effect can be imparted to the washing water. In addition, the density | concentration of the silver ion required in order for washing water to exhibit a bactericidal effect is about 50 microgram / L or more.

  In addition, the power supply unit 63 is provided so that the magnitude of supply power (hereinafter referred to as supply power value) that is power supplied to the electrolytic electrode 62 can be changed. Specifically, the power supply unit 63 can change the DC voltage value output to the electrolytic electrode 62. As the power supply value increases, the silver ion elution amount, and hence the silver ion amount supplied to the wash water, increases, so that the silver ion concentration increases.

  The electrical resistance detector 64 is an electrical resistance meter that detects the electrical resistance value of the cleaning water in the electrolytic bath 61. The electrical resistance detector 64 includes measurement electrodes 64a and 64b. The measurement electrodes 64a and 64b are disposed between the electrolytic electrode 62 and the outlet 61b in the electrolytic cell 61. The electrical resistance value detected by the electrical resistance detector 64 is transmitted to the control device 50.

  When silver ions are dissolved in the cleaning water in the electrolytic bath 61, the electrical resistance value of the cleaning water varies depending on the concentration of silver ions in the cleaning water. In this case, the electrical resistance value of the washing water decreases as the silver ion concentration increases.

  The control device 50 performs overall control of the local cleaning device 1. The control device 50 controls at least the water supply device 41. The control device 50 executes cleaning control for cleaning the tip portions 45b1 and 45c1 of the nozzles 45b and 45c using cleaning water (details will be described later). In addition, the control device 50 includes a power control unit 51.

  The power control unit 51 controls the supply of power from the power supply unit 63 to the electrolytic electrode 62. The electric power control unit 51 supplies electric power from the power supply unit 63 to the electrolytic electrode 62 when the cleaning water flows in the electrolytic bath 61. Further, the power control unit 51 controls the supply power value by the power supply unit 63 based on the electrical resistance value detected by the electrical resistance detection unit 64. Specifically, the power control unit 51 controls (corrects) the supplied power value so that the electric resistance value detected by the electric resistance detection unit 64 falls within a predetermined electric resistance value range.

  The predetermined electric resistance value range is set such that when the flow rate of the cleaning water is a predetermined flow rate, the cleaning water exhibits a sterilizing effect and has a silver ion concentration that suppresses silver precipitation in the cleaning water. . The concentration of silver ions in the washing water in which silver precipitation is suppressed is approximately 300 μg / L or less. The predetermined electric resistance value range is derived by being measured in advance through experiments or the like.

  Next, cleaning control for cleaning the tip portions 45b1 and 45c1 of the nozzles 45b and 45c, which is executed by the control device 50 of the above-described local cleaning device 1, will be described with reference to the flowchart shown in FIG. For example, when a switch (not shown) for starting the cleaning control is turned on, the cleaning control is started.

  In step S102, the control device 50 connects the fourth connection water channel L4 and the seventh connection water channel L7 by the flow path switching valve 45a. And the control apparatus 50 energizes the water supply apparatus 41 in step S104, and makes it an open state. Thereby, the wash water from the water supply device 41 is supplied at a predetermined flow rate into the electrolytic bath 61 of the silver ion supply device 60 via the flow path switching valve 45a.

  Since the washing water is water (clean water) supplied from the water pipe 3, it contains calcium ions, magnesium ions, chloride ions, and the like. Moreover, since the introduction port 61a of the cleaning water in the electrolytic cell 61 is opened toward the side surface of the base portion 62a1 of the anode 62a as described above, the cleaning water contacts the side surface of the base portion 62a1 of the anode 62a. Therefore, more of these ions adhere to the base 62a1 of the anode 62a than the protrusion 62a2 and the cathode 62b of the anode 62a.

  Continuously, the control apparatus 50 starts supply of the electric power by the power supply part 63 in step S106. Thereby, dissolution of the anode 62a by electrolysis occurs, and silver ions are supplied to the washing water. Then, the control device 50 controls the supply power value to be a predetermined supply power value. The predetermined supply power value is set so that the electric resistance value detected by the electric resistance detector 64 falls within the predetermined electric resistance value range in a state where the dissolved amount of the anode 62a is relatively small.

  The dissolution of the anode 62a occurs at a portion where the electrical resistance value between the anode 62a and the cathode 62b (hereinafter referred to as interelectrode resistance value) is minimized. The interelectrode resistance value is proportional to the distance between the anode 62a and the cathode 62b. Further, the protruding end 62a3 of the anode 62a and the protruding end 62b3 of the cathode 62b are opposed to each other. Therefore, the protruding end 62a3 of the anode 62a is a part that minimizes the distance between the cathode 62b and the inter-electrode resistance value. Therefore, dissolution of the anode 62a occurs from the protruding end 62a3 of the anode 62a. By supplying silver ions to the washing water, bactericidal properties are imparted to the washing water.

  The cleaning water to which the sterilizing property is imparted is led out to the cleaning nozzle 45d. Then, the cleaning water is jetted from the cleaning nozzle 45d to the tip portions 45b1 and 45c1 of the nozzles 45b and 45c, thereby cleaning the tip portions 45b1 and 45c1. Further, this washing water is led into the toilet bowl 2a.

  Moreover, the control apparatus 50 acquires the electrical resistance value detected by the electrical resistance detection part 64 in step S108. The control device 50 controls (corrects) the supplied power value so that the electrical resistance value detected by the electrical resistance detection unit 64 in step S110 is within a predetermined electrical resistance value range (power control unit 51). When the electric resistance value detected by the electric resistance detector 64 is within the predetermined electric resistance value range, the control device 50 maintains the supplied power value at the predetermined supplied power value.

  When the amount of the dissolved anode 62a becomes relatively large because the period of use of the local cleaning device 1 is relatively long, the distance between the anode 62a and the cathode 62b and thus the inter-electrode resistance value becomes relatively large. In this case, since the elution amount of silver ions becomes relatively small, the concentration of silver ions in the washing water becomes relatively low. Therefore, in this case, the electrical resistance value detected by the electrical resistance detection unit 64 becomes relatively large. .

  As a result, when the electrical resistance value detected by the electrical resistance detection unit 64 becomes larger than the upper limit value of the predetermined electrical resistance value range, the control device 50 causes the power supply unit 63 to increase the supply power value to be larger than the predetermined supply power value. To control (correct). Thereby, since the elution amount of silver ions and thus the concentration of silver ions in the washing water increase, the electric resistance value detected by the electric resistance detector 64 can be reduced to be within a predetermined electric resistance value range.

  On the other hand, when the amount of dissolution of the anode 62a is relatively small because the period of use of the local cleaning device 1 is relatively short, for example, the distance between the anode 62a and the cathode 62b and the resistance between the electrodes due to variations in the size of the anode 62a. Is relatively small. In this case, since the elution amount of silver ions is relatively large, the concentration of silver ions in the washing water is relatively high. Therefore, in this case, the electrical resistance value detected by the electrical resistance detector 64 is relatively small.

  As a result, when the electric resistance value detected by the electric resistance detection unit 64 becomes smaller than the lower limit value of the predetermined electric resistance value range, the control device 50 causes the power supply unit 63 to reduce the supply power value to be smaller than the predetermined supply power value. To control (correct). Thereby, since the elution amount of silver ions and hence the concentration of silver ions in the washing water decreases, the electric resistance value detected by the electric resistance detector 64 can be increased to be within a predetermined electric resistance value range. Therefore, bactericidal properties are reliably imparted to the washing water, and silver deposition in the washing water is suppressed. Note that the control amount (correction amount) of the supplied power value is obtained by actually measuring in advance through experiments or the like.

  The control device 50 determines whether or not a predetermined time (for example, 6 seconds) has elapsed in step S112. If the predetermined time has not elapsed, control device 50 determines “NO” in step S112, and returns the program to step S108. On the other hand, when the predetermined time has elapsed, the control device 50 determines “YES” in step S112, and stops the supply of power by the power supply unit 63 in step S114. This stops the supply of silver ions to the wash water. Further, in step S116, the control device 50 deenergizes the water supply device 41 and closes it. Thereby, the ejection of the washing water from the washing nozzle 45d is stopped and the washing control is finished.

  According to the present embodiment, the local cleaning device 1 is installed in a seat-type toilet 2 having a toilet bowl 2a, and a local body part is ejected by ejecting cleaning water supplied from a water pipe 3 through a water supply device 41. Wash. The local cleaning device 1 is supplied with cleaning water from the water supply device 41, and between the water supply device 41 and the cleaning nozzle 45d, a cleaning nozzle 45d that ejects the cleaning water toward the tip portions 45b1 and 45c1 of the nozzles 45b and 45c. A silver ion supply device 60 that is provided and supplies silver ions to the cleaning water, and a control device 50 that controls at least the water supply device 41 are provided. The silver ion supply device 60 is provided with an electrolytic bath 61 that uses washing water as an electrolytic solution, an electrolytic bath 61 that is provided in the electrolytic bath 61 so as to be in contact with the washing water, and has an anode 62a and a cathode 62b, and power to the electrolytic electrode 62. And a power supply unit 63 to be supplied. In the electrolytic electrode 62, only the anode 62a is made of silver.

  According to this, since the cleaning nozzle 45d sprays cleaning water containing silver ions having a sterilizing effect toward the tip portions 45b1 and 45c1 of the nozzles 45b and 45c, the tip portions 45b1 and 45c1 are sterilized. Further, since only the anode 62a of the electrolytic electrode 62 is made of silver, the cathode 62b can be formed of a relatively low cost material. Therefore, in the local cleaning apparatus 1, it is possible to reduce the cost of the function of performing the sterilization treatment with silver ions on the tip portions 45b1 and 45c1 of the nozzles 45b and 45c.

  Further, since the cathode 62b does not dissolve even by electrolysis, it can be formed relatively small. Therefore, since the amount of material used for the cathode 62b can be relatively reduced, the cost of the electrolytic electrode 62 can be reduced.

Each of the anode 62a and the cathode 62b includes projecting portions 62a2 and 62b2 that project from the base portions 62a1 and 62b1 and the base portions 62a1 and 62b1 and have projecting ends 62a3 and 62b3. Are provided so as to face each other.
According to this, since the anode 62a is dissolved from the protrusion 62a2, adhesion of the scale at the protrusion 62a2 is suppressed. Therefore, silver ions can be reliably supplied to the cleaning water.

In addition, the electrolytic cell 61 has an inlet 61a that opens toward the base 62a1 and introduces cleaning water.
According to this, the wash water that flows in from the inlet 61a flows toward the base 62a1. Therefore, chloride ions and calcium ions contained in the washing water are more likely to adhere to the base 62a1 than the protrusions 62a2. Therefore, accumulation of scales such as chlorides on the protrusions 62a2 that elute silver ions can be suppressed.

  Further, an electrical resistance detection unit 64 that detects the electrical resistance value of the cleaning water in the electrolytic bath 61 is further provided. The control device 50 includes a power control unit 51 that controls the amount of power supplied from the power supply unit 63 to the electrolytic electrode 62 based on the electrical resistance value detected by the electrical resistance detection unit 64.

  The electrical resistance value of the cleaning water in the electrolytic bath 61 changes due to the change in the concentration of silver ions in the cleaning water. Thereby, when the electrical resistance value detected by the electrical resistance detection unit 64 falls outside the predetermined electrical resistance value range, the control device 50 (the power control unit 51) detects the electrical resistance value detected by the electrical resistance detection unit 64. The power supply value is controlled (corrected) so that is within a predetermined electric resistance value range. Thereby, since the density | concentration of the silver ion in the electrolytic vessel 61 is adjusted, while being able to provide bactericidal property to washing water reliably, precipitation of silver in washing water can be suppressed.

  In the above-described embodiment, an example of the local cleaning device has been described. However, the present invention is not limited to this, and other configurations may be employed. For example, in the above-described embodiment, the parts to be cleaned are the tip parts 45b1 and 45c1 of the nozzles 45b and 45c, but instead of this, they may be part of the main body casing 10a.

  Moreover, in embodiment mentioned above, although the washing nozzle 45d spouts washing water to the to-be-washed | cleaned part (front-end | tip part 45b1, 45c1 of the nozzles 45b and 45c) of the local washing | cleaning apparatus 1, it replaces with this and the toilet bowl part 2a The washing water may be jetted out. According to this, the washing nozzle 45d is supplied with washing water from the water supply device 41, and ejects the washing water toward the portion to be washed or the toilet bowl 2a of the local washing device 1.

  In the above-described embodiment, the anode 62a is entirely made of silver. Instead, the base 62a1 of the anode 62a is formed of a material other than silver (for example, a relatively low-cost stainless steel material). May be. In this case, the base 62a1 of the anode 62a may be silver-plated. According to this, the cost of the electrolytic electrode 62 can be reduced.

  In the above-described embodiment, the bases 62a1 and 62b1 of the anode 62a and the cathode 62b are each formed in a rod shape. Instead, at least one of the bases 62a1 and 62b1 of the anode 62a and the cathode 62b is plate-shaped. Alternatively, it may be formed in a rectangular parallelepiped shape.

  Further, in the above-described embodiment, the seventh connection water channel L7 that supplies the cleaning water to the cleaning nozzle 45d is connected to the flow channel switching valve 45a, but instead, the seventh connection water channel L7 You may make it comprise and branch from the other connection water channels L1-L4.

  DESCRIPTION OF SYMBOLS 1 ... Local washing | cleaning apparatus, 2 ... Seat-type toilet, 2a ... Toilet bowl part (to-be-cleaned part), 3 ... Water supply pipe (water supply source), 10 ... Main part, 20 ... Toilet seat, 30 ... Toilet lid, 40 ... Cleaning function , 41 ... Water supply device, 45 ... Nozzle device, 45b ... Wet nozzle, 45c ... Bidet nozzle, 45b1, 45c1 ... Tip (to-be-cleaned part), 45d ... Cleaning nozzle, 50 ... Control device, 51 ... Power control unit, 60 ... Silver ion supply device, 61 ... Electrolytic cell, 62 ... Electrolytic electrode, 62a ... Anode, 62a1, 62b1 ... Base, 62a2, 62b2 ... Projection, 62a3, 62b3 ... Projection end, 62b ... Cathode, 63 ... Power supply, 64 ... Electric resistance detector.

Claims (4)

A local cleaning device that is installed in a seat-type toilet having a toilet bowl, and that cleans a local part of a human body by ejecting cleaning water supplied from a water supply source via a water supply device,
The cleaning water is supplied from the water supply device, and the cleaning water is ejected toward the cleaned portion of the toilet bowl or the local cleaning device,
A silver ion supply device that is provided between the water supply device and the cleaning nozzle and supplies silver ions to the cleaning water;
A control device for controlling at least the water supply device,
The silver ion supply device
An electrolytic cell using the washing water as an electrolyte;
An electrolytic electrode provided in the electrolytic cell so as to be in contact with the washing water, and having an anode and a cathode;
A power supply unit for supplying power to the electrolytic electrode,
The electrolytic electrode is a local cleaning device in which only the anode is made of silver. Each of the anode and the cathode includes a base and a protruding portion that protrudes from the base and has a protruding end,
The local cleaning apparatus according to claim 1, wherein the protruding end of the anode and the protruding end of the cathode are provided to face each other.   The local cleaning apparatus according to claim 2, wherein the electrolytic cell is opened toward the base and has an inlet for introducing the cleaning water. An electric resistance detector for detecting an electric resistance value of the cleaning water in the electrolytic cell;
The said control apparatus is provided with the electric power control part which controls the magnitude | size of the electric power supplied from the said power supply part to the said electrolytic electrode based on the said electrical resistance value detected by the said electrical resistance detection part. The local cleaning apparatus as described in any one of Claim 3 thru | or 3.

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