JP2018025063A - Private part washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress unevenness of a sterilization effect in a private part washing device for jetting washing water having sterilization properties to a part to be washed inside a toilet bowl part or of the private part washing device.SOLUTION: A private part washing device 1 includes: a washing nozzle 45d for jetting washing water to tip parts 45b1, 45c1 of nozzles 45b, 45c; a sterilization property imparting part 60 including a sterilization casing 61 in which the washing water flows inside and a granular sterilizing agent 62 stored in the sterilization casing 61 and for eluting silver ions having sterilization properties into the washing water, by coming into contact with the washing water; an electric resistance detection part 70 for detecting an electric resistance value of the washing water flowing inside the sterilization casing 61; and a heating device 43 for heating the washing water. A control device 50 of the private part washing device 1 includes a temperature control part 51 for controlling the temperature of the washing water supplied to the sterilization property imparting part 60 by the heating device 43 based on the electric resistance value detected by the electric resistance detection part 70.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a local cleaning apparatus.

  As one form of the local cleaning device, the one shown in Patent Document 1 is known. The local cleaning apparatus of Patent Document 1 includes a butt nozzle 49 and a bidet nozzle 51 for cleaning a local part of a human body with cleaning water, a hot water tank (case 2) for storing cleaning water to be supplied to the nozzles 49 and 51, and hot water. A warm water heater 41 that heats the wash water in the tank, an antibacterial agent 73 that is accommodated in the warm water tank, dissolves and imparts antibacterial components to the wash water by contact with the wash water, and the wash water from the warm water tank A nozzle cleaning port 60 for sterilizing the nozzles 49 and 51 by being ejected toward the nozzles 49 and 51 is provided.

JP 2008-121303 A

  However, in the local cleaning apparatus of Patent Document 1, the disinfectant is always dissolved because the disinfectant is contained in the hot water tank. Therefore, when the elapsed time from the previous sterilization is relatively short, the antibacterial component imparted to the wash water is relatively small, and thus the concentration of the antibacterial component of the wash water is relatively low. In this case, sufficient sterilization effect may not be obtained. On the other hand, when the elapsed time from the previous sterilization is relatively long, the antibacterial component imparted to the wash water is relatively large, and thus the concentration of the antibacterial component of the wash water is relatively high. In this case, a sufficient sterilizing effect can be obtained. As described above, since the concentration of the antibacterial component of the washing water varies, the antibacterial effect varies.

  The present invention has been made in order to solve the above-described problems, and in a local cleaning device that ejects cleaning water having sterilizing properties to a cleaning portion of a toilet bowl or a local cleaning device, the sterilization effect is improved. The purpose is to suppress variation.

  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 local water is ejected from the water supply source through the water supply device. This is a local cleaning device that cleans the water and is provided between the water supply device and the cleaning nozzle, which is supplied with the cleaning water from the water supply device and jets the cleaning water to the portion to be cleaned of the toilet bowl or the local cleaning device. A sterilization imparting unit comprising: a casing through which cleaning water flows; and a granular sterilizing agent that is housed in the casing and elutes metal ions having bactericidal properties into the cleaning water by contacting the cleaning water. And an electrical resistance detection unit that detects an electrical resistance value of the cleaning water flowing inside the casing, and an introduction unit that introduces the cleaning water in the water supply device and a sterilization imparting unit, and heats the cleaning water There are few heating devices and heating devices. And a control device that controls the temperature of the cleaning water supplied to the sterilization imparting unit based on the electrical resistance value detected by the electrical resistance detection unit. Department.

  According to this, the control apparatus of a local washing | cleaning apparatus controls the temperature of the washing water supplied to a disinfection provision part by a heating apparatus based on the electrical resistance value detected by the electrical resistance detection part. As the temperature of the wash water supplied to the disinfectant imparting unit increases, the amount of metal ions eluted from the disinfectant into the wash water increases, so the concentration of metal ions in the wash water increases, and The sterilization effect is increased. In addition, as the concentration of metal ions in the cleaning water increases, the electrical resistance value of the cleaning water decreases. Therefore, the control device controls the temperature of the cleaning water based on the electric resistance value detected by the electric resistance detector, so that the concentration of metal ions in the cleaning water can be adjusted to be approximately constant. Therefore, it is possible to suppress variation in the sterilization effect on the portion to be cleaned of the toilet bowl or the local cleaning device.

It is a perspective view which shows the local washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a schematic diagram of the local cleaning apparatus shown in FIG. It is a schematic diagram which shows the disinfection provision part shown in FIG. It is sectional drawing of the microbe elimination provision part along the IV-IV line | wire shown in FIG. It is a figure which shows the 1st correlation with the density | concentration of the silver ion of washing water, and the temperature of washing water. It is a figure which shows the 2nd correlation of the density | concentration of the silver ion of washing water, and the electrical resistance value of washing water. It is a block diagram of the local washing | cleaning 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 (clean water) from the water pipe 3 toward the local part of the human body as cleaning water. As shown in FIG. 2, the cleaning function unit 40 includes a water supply device 41, a flow rate detection device 42, a heating 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 heating device 43. The third connection water channel L <b> 3 connects the heating 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 heating device 43, a third connection water channel L3, a pump 44, a fourth connection water channel L4, and a nozzle device. It flows in the order of 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 heating device 43 heats the cleaning water. When the local part of the human body is cleaned, the heating device 43 heats the cleaning water so that the temperature of the cleaning water becomes a first predetermined temperature (for example, 38 ° C.) set by the user. The heating 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 cleaning water flows through the heating device 43, the heater 43a directly contacts the cleaning water and heats the cleaning water from the water pipe 3. The heater 43a is a ceramic heater, for example. Since the heater 43a is controlled by PWM (Pulse Width Modulation), the control command value of the heater 43a is calculated by the duty ratio.

  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 heater 43a is controlled so that the temperature detected by the second temperature sensor 43b becomes the target temperature. When the local part of the human body is washed, the target temperature is the first predetermined temperature.

  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 45b and 45c are stored in the main body 10 (main body casing 10a). 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.

  The cleaning function unit 40 further includes a sterilization imparting unit 60 and an electrical resistance detection unit 70. The sterilizing property imparting unit 60 is provided between the water supply device 41 and the cleaning nozzle 45d, and imparts sterilizing property to the cleaning water. Specifically, the sterilization imparting unit 60 is provided between the flow path switching valve 45a and the cleaning nozzle 45d (in the seventh connection water channel L7). As shown in FIGS. 3 and 4, the sterilization imparting unit 60 includes a sterilization casing 61 (corresponding to the casing of the present invention) and a sterilizing agent 62.

  The sterilization casing 61 is provided between the flow path switching valve 45a and the cleaning nozzle 45d (in the seventh connection water channel L7), and the cleaning water flows inside. The sterilization casing 61 is formed in a hollow cylindrical shape whose axial direction is approximately parallel to the left-right direction (left-right direction in FIG. 3). The sterilization casing 61 includes an inflow port 61a through which the wash water flows into the inside and an outflow port 61b through which the wash water flows out from the inside.

  The inflow port 61a is provided below the peripheral side wall 61c of the sterilization casing 61 (the lower side in FIG. 3). The flow path cross-sectional area of the inflow port 61a is smaller than the flow path cross-sectional area of the outflow port 61b. The inflow port 61a is provided so that the washing water flows into the sterilization casing 61 along the first direction W1 toward the inner peripheral surface of the peripheral side wall 61c. The first direction W1 is a direction from the left side of FIG. 4 to the right side (from the back side of the drawing sheet to the front side of the drawing sheet).

  The outflow port 61b is provided on the upper side (upper side in FIG. 3) of the right side wall 61d (the right side wall in FIG. 3) of the sterilization casing 61. That is, the outflow port 61b is provided above the inflow port 61a. The outlet 61b is provided so that the washing water flows out of the sterilization casing 61 along the second direction W2. The second direction W2 is a direction from the left side of FIG. 3 to the right side (from the front side of the paper in FIG. 4 to the back side of the paper). Thus, the first direction W1 and the second direction W2 are in a twisted relationship. That is, the first direction W1 is set to a direction that is not included in any plane passing through the second direction W2.

  The disinfecting agent 62 is a granular material that is contained in the disinfecting casing 61 and elutes metal ions having bactericidal properties into the cleaning water by contacting the cleaning water. The disinfectant 62 is a plurality of disinfecting glass. The sterilizing glass is a phosphate glass containing silver oxide. Phosphate glass has solubility in water. When the phosphate glass is dissolved in water, the silver oxide elutes silver ions into the water. That is, the metal ion is a silver ion. The silver oxide is, for example, silver oxide.

  When the cleaning water flows into the sterilization casing 61, the cleaning water and the sterilizing agent 62 come into contact with each other, so that silver ions are eluted from the sterilizing agent 62 into the cleaning water. The 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.

  Further, the amount of silver ions eluted from the disinfectant 62 into the washing water (amount per unit volume of washing water) increases as the temperature of the washing water increases. That is, as shown in the first map M1 in FIG. 5, the concentration of silver ions in the wash water (hereinafter referred to as ion concentration) and the temperature of the wash water are the size of the disinfectant 62 (the size of the surface area). ) Is constant, there is a first correlation in which the concentration of silver ions in the wash water increases as the temperature of the wash water increases.

  A plurality of first correlations are derived based on the size of the disinfectant 62. Specifically, the first correlation when the size of the disinfectant 62 is the first predetermined size is shown by the solid line in FIG. Moreover, the 1st correlation in case the magnitude | size of the disinfection agent 62 is a 2nd predetermined magnitude | size smaller than a 1st predetermined magnitude | size is shown with the dashed-dotted line of FIG. When the temperature of the wash water supplied into the sterilization casing 61 is the same because the second predetermined sterilization agent 62 is smaller than the first predetermined sterilization agent 62, the ion concentration Is lower for the second predetermined size sanitizer. For convenience of explanation, only two first correlations are shown in the first map M1.

  The electrical resistance detector 70 is an electrical resistance meter that detects the electrical resistance value of the wash water flowing inside the sterilization casing 61. As shown in FIG. 3, the electrical resistance detector 70 includes measurement electrodes 70 a and 70 b. The measurement electrode 70a is disposed on the left side wall 61e (the left side wall in FIG. 3) of the sterilization casing 61. The measurement electrode 70 b is disposed on the right side wall 61 d of the sterilization casing 61. The electrical resistance value detected by the electrical resistance detector 70 is transmitted to the control device 50 as a detection signal.

  When the washing water in the sterilization casing 61 contains silver ions, the electrical resistance value of the washing water varies depending on the concentration of silver ions in the washing water. In this case, as shown in the second map M2 in FIG. 6, the ion concentration and the electrical resistance value of the cleaning water have a second correlation in which the electrical resistance value of the cleaning water decreases as the ion concentration increases. . The second correlation is derived by actually measuring in advance through experiments or the like.

  The control device 50 performs overall control of the local cleaning device 1. The control device 50 controls at least the heating device 43. The control device 50 executes cleaning control for cleaning the tip portions 45b1 and 45c1 of the nozzles 45b and 45c using cleaning water. The cleaning control is control for ejecting cleaning water to which sterilizing properties are imparted from the cleaning nozzle 45d toward the tip portions 45b1 and 45c1 of the nozzles 45b and 45c (details will be described later).

  Moreover, the control apparatus 50 is provided with the temperature control part 51, as shown in FIG. Based on the electrical resistance value detected by the electrical resistance detector 70, the temperature controller 51 controls the temperature of the cleaning water supplied to the sterilization imparting unit 60 by the heating device 43 (details will be described later). The control device 50 stores a first correlation and a second correlation.

  Next, the cleaning control 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 starts supplying cleaning water to the sterilization imparting unit 60. Specifically, 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. Moreover, the control apparatus 50 energizes the water supply apparatus 41, and makes it an open state. Then, the control device 50 controls the flow path switching valve 45a so that the flow rate detected by the flow rate sensor 42b becomes a predetermined flow rate (flow rate per unit time). Thereby, the wash water from the water supply apparatus 41 flows into the inside of the sterilization casing 61 of the sterilization imparting unit 60 at a predetermined flow rate via the flow path switching valve 45a.

  Since the inflow port 61a is arranged on the lower side of the sterilization casing 61 so that the cleaning water flows in the first direction W1, the cleaning water flowing into the sterilization casing 61 is as shown in FIG. Further, it is repeatedly reflected on the inner surfaces of the peripheral side wall 61c, the right side wall 61d, and the left side wall 61e so as to turn counterclockwise in the sterilization casing 61.

  And since the outflow port 61b is arrange | positioned so that washing | cleaning water may flow to the 2nd direction W2 which has a twist relationship with the 1st direction W1, it is the washing | cleaning from the inflow port 61a. The water flows toward the outlet 61b while reflecting the inner walls of the peripheral side wall 61c, the right side wall 61d, and the left side wall 61e of the sterilization casing 61. Therefore, the disinfectant 62 in the disinfecting casing 61 is agitated by the momentum of the washing water. At this time, silver ions are eluted from the sterilizing agent 62 into the washing water, and sterilization is imparted to the washing water.

  Moreover, the control apparatus 50 sets the target temperature of washing water to 2nd predetermined temperature Th2 in step S104. Thereby, the heater 43a is controlled so that the temperature detected by the second temperature sensor 43b becomes the second predetermined temperature Th2. The second predetermined temperature Th2 is a temperature at which the ion concentration becomes approximately the first concentration C1 when the flow rate of the washing water is the predetermined flow rate and the size of the disinfectant 62 is the first predetermined size. Yes (see FIG. 5).

  The first concentration C1 is a relatively low concentration within the predetermined concentration range Hc (see FIG. 5). The predetermined concentration range Hc is set such that the wash water exhibits a sterilizing effect and has a silver ion concentration at which silver precipitation in the wash water is suppressed. The predetermined concentration range Hc is set to approximately 50 to 300 μg / L. The predetermined flow rate, the second predetermined temperature Th2, the first concentration C1, and the predetermined concentration range Hc are derived by being measured in advance through experiments or the like.

  The control device 50 (temperature control unit 51) estimates the electrical resistance value of the wash water in the sterilization casing 61 in step S106. Specifically, the control device uses the average value of the electrical resistance value detected by the electrical resistance detection unit 70 within a predetermined time (for example, 1 second) as the estimated value of the electrical resistance value of the cleaning water in the sterilization casing 61. (Hereinafter referred to as an estimated electric resistance value Rs).

  Control device 50 (temperature control unit 51) estimates the ion concentration in step S108. Specifically, the control device 50 derives the estimated value of the ion concentration as the estimated concentration Cs from the estimated electrical resistance value Rs based on the second correlation described above (see FIG. 6).

  At this time, since the temperature of the washing water flowing into the sterilizing casing 61 is the second predetermined temperature Th2, when the size of the sterilizing agent 62 is the first predetermined size, the estimated concentration Cs is approximately the first One concentration C1. On the other hand, when the size of the sterilizing agent 62 is reduced from the first predetermined size due to the relatively large number of executions of the cleaning control, the amount of silver ions eluted decreases, so that the estimated electric resistance value Rs increases. Therefore, in this case, the estimated concentration Cs is smaller than the first concentration C1. For example, when the size of the disinfectant 62 is the second predetermined size, the estimated concentration Cs is a second concentration C2 that is lower than the first concentration C1 (see FIG. 5).

  Control device 50 (temperature control unit 51) derives a corrected temperature in step S110. Specifically, the control device 50 derives a correction temperature from the difference between the estimated concentration Cs and the target concentration Ct based on the first correlation. The target density Ct is approximately the median value of the predetermined density range Hc (see FIG. 5).

  The control device 50 selects one first correlation among the plurality of first correlations from the estimated concentration Cs. Specifically, in the first map M1, the control device 50 selects the first correlation closest to the point constituted by the second predetermined temperature Th2 and the estimated concentration Cs among the plurality of first correlations. . For example, when the estimated concentration Cs is the first concentration C1, the first correlation having the first predetermined magnitude is selected (see FIG. 5). Further, in this case, the control device 50 derives the first correction temperature Thr1 as the correction temperature from the difference between the target concentration Ct and the first concentration C1 based on the first correlation having the first predetermined magnitude. When the estimated concentration Cs is the second concentration C2, the control device 50 selects the first correlation having the second predetermined magnitude and derives the second correction temperature Thr2 as the correction temperature.

  And the control apparatus 50 (temperature control part 51) correct | amends the target temperature of washing water in step S112. Specifically, the control device 50 sets the target temperature to a temperature obtained by adding the correction temperature to the second predetermined temperature Th2. Thereby, the control apparatus 50 controls the heating apparatus 43 so that the temperature detected by the second temperature sensor 43b becomes the corrected target temperature. When the temperature of the cleaning water reaches the corrected target temperature, the amount of silver ions eluted in the cleaning water is adjusted by the sterilization imparting unit 60, and the ion concentration is adjusted to the corrected target concentration Ct. Is done.

  The wash water to which the sterilization imparting unit 60 has been leached and the silver ions are eluted is supplied from the inside of the sterilization casing 61 to the wash nozzle 45d through the outlet 61b. The cleaning water is ejected from the cleaning nozzle 45d and flows on the surfaces of the tip portions 45b1 and 45c1 of the nozzles 45b and 45c. Since the washing water contains silver ions, the tip portions 45b1 and 45c1 of the nozzles 45b and 45c are sterilized. The washing water is led to the toilet bowl 2a after washing the tip portions 45b1 and 45c1 of the nozzles 45b and 45c.

  In step S114, control device 50 determines whether or not a predetermined time (for example, 6 seconds) has elapsed since the program was started. If the predetermined time has not elapsed, control device 50 determines “NO” in step S114, and returns the program to step S106. That is, in this case, the control device 50 repeatedly executes steps S106 to S114. On the other hand, when a predetermined time has elapsed from the start of the program, the control device 50 determines “YES” in step S114, and stops the supply of cleaning water to the sterilization imparting unit 60 in step S116. . Specifically, the control device 50 deenergizes the water supply device 41 and closes it, and stops driving the pump 44. 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 portion 2a, and the cleaning water supplied from the water pipe 3 through the water supply device 41 is ejected to localize the human body. Wash. The local cleaning device 1 is provided between the water supply device 41 and the cleaning nozzle 45d, and the cleaning nozzle 45d that is supplied with the cleaning water from the water supply device 41 and jets the cleaning water to the tip portions 45b1 and 45c1 of the nozzles 45b and 45c. And a sterilizing casing 61 in which the cleaning water flows, and a granular sterilizing agent 62 that is housed in the sterilizing casing 61 and elutes the sterilizing silver ions into the cleaning water by contacting the cleaning water. Provided between the water supply device 41 and the sterilization imparting unit 60, the sterilization imparting unit 60, the electrical resistance detection unit 70 for detecting the electrical resistance value of the washing water flowing inside the sterilization casing 61, A heating device 43 that heats the cleaning water and a control device 50 that controls at least the heating device 43 are provided. The control device 50 includes a temperature control unit 51 that controls the temperature of the cleaning water supplied to the sterilization imparting unit 60 by the heating device 43 based on the electrical resistance value detected by the electrical resistance detection unit 70. .

  According to this, the control device 50 (temperature control unit 51) of the local cleaning device 1 is based on the electrical resistance value detected by the electrical resistance detection unit 70 and is supplied to the sterilization imparting unit 60. The temperature is controlled by the heating device 43. Since the amount of silver ions eluted from the disinfectant 62 into the washing water increases as the temperature of the washing water supplied to the sterilization imparting unit 60 increases, the concentration (ion concentration) of silver ions in the washing water And the sterilizing effect is increased. Moreover, as the ion concentration increases, the electrical resistance value of the cleaning water decreases. Therefore, the control device 50 can adjust the ion concentration to be approximately constant by controlling the temperature of the cleaning water based on the electric resistance value detected by the electric resistance detector 70. Therefore, the dispersion | variation in the disinfection effect with respect to the front-end | tip parts 45b1 and 45c1 of the nozzles 45b and 45c can be suppressed.

  The sterilization casing 61 includes an inflow port 61a into which cleaning water flows and an outflow port 61b from which cleaning water flows out. The cross-sectional area of the inflow port 61a is equal to the cross-sectional area of the outflow port 61b. It is smaller.

  According to this, compared with the case where the flow path cross-sectional area of the inflow port 61a is more than the flow path cross-sectional area of the outflow port 61b, the flow rate of the washing water in the sterilization casing 61 can be increased. Therefore, even when an immobile film such as chloride is formed on the surface of the sterilizing agent 62, the immobile film can be removed by the momentum through which the washing water flows. Accordingly, it is possible to prevent the disinfectant 62 from being dissolved by the immobile film.

  Moreover, the inflow port 61a is provided so that washing water may flow into the sterilization casing 61 along the first direction W1. The outlet 61b is provided so that the washing water flows out of the sterilization casing 61 along the second direction W2. The first direction W1 and the second direction W2 are in a twisted relationship.

  According to this, the wash water that has flowed into the sterilization casing 61 from the inlet 61a is repeatedly reflected on the inner surfaces of the peripheral side wall 61c, the right side wall 61d, and the left side wall 61e of the sterilization casing 61 toward the outlet 61b. Flowing. Accordingly, the sterilizing agent 62 is agitated in the sterilization casing 61 by the flow of the cleaning water as compared with the case where the cleaning water flows directly from the inflow port 61a to the outflow port 61b. Therefore, the dissolution of the disinfectant 62 can be made uniform.

  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 nozzle 45b, 45c) of the local cleaning apparatus 1, it replaces with this and the toilet bowl part 2a The washing water may be jetted into the inside. According to this, the cleaning nozzle 45d is supplied with the cleaning water from the water supply device 41, and jets the cleaning water toward the toilet bowl 2a or the portion to be cleaned of the local cleaning device 1.

Moreover, in embodiment mentioned above, although the disinfection provision part 60 is provided in the 7th connection water channel L7, it replaces with this and is provided in any one of the connection water channels L1-L4. Also good.
Moreover, in embodiment mentioned above, although the heating apparatus 43 is provided between the water supply apparatus 41 and the microbe elimination part 60, it is made to form the heating apparatus 43 integrally with the water supply apparatus 41. Also good. That is, the heating device 43 is formed between the introduction portion 41 a (see FIG. 2) that introduces cleaning water in the water supply device 41 and the sterilization imparting portion 60. The introduction part 41 a is a connection part with the water supply hose H in the water supply apparatus 41.

  In the embodiment described above, the control device 50 derives the corrected temperature from the estimated concentration Cs based on the first correlation after deriving the estimated concentration Cs from the estimated electrical resistance value Rs based on the second correlation. However, instead of this, the correction temperature may be derived directly from the estimated electrical resistance value Rs. In this case, the wash water derives a correction temperature from the estimated electrical resistance value Rs based on the third correlation. The third correlation indicates the relationship between the estimated electrical resistance value Rs and the correction temperature. The third correlation is a relationship in which the correction temperature increases as the estimated electrical resistance value Rs decreases. The third correlation is derived by being measured in advance through experiments or the like.

  In the above-described embodiment, when it is determined “NO” in step S114, the control device 50 executes steps S106 to S114 again. Instead, only step S114 is performed until a predetermined time elapses. You may make it perform repeatedly.

  In addition, the shape of the sterilization casing 61 and the relationship between the first direction W1 and the second direction W2 may be changed without departing from the gist of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Local washing apparatus, 2 ... Seat-type toilet, 2a ... Toilet bowl part, 3 ... Water supply pipe (water supply source), 10 ... Main part, 40 ... Cleaning function part, 41 ... Water supply apparatus, 42 ... Flow rate detection apparatus, 43 ... Heating device, 43a ... Heating heater, 43b ... Second temperature sensor, 45 ... Nozzle device, 45b ... Wet nozzle, 45b1, 45c1 ... Tip (to-be-cleaned part), 45c ... Bidet nozzle, 45d ... Cleaning nozzle, 50 ... Control Device: 51 ... Temperature controller, 60 ... Sterilization imparting unit, 61 ... Sterilization casing (casing), 61a ... Inlet, 61b ... Outlet, 62 ... Sterilizer, 70 ... Electric resistance detector, W1 ... 1st direction, W2 ... 2nd direction.

Claims (3)

A local cleaning device that is installed in a seat-type toilet having a toilet bowl and that cleans the 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 nozzle that jets the cleaning water to the cleaning target portion of the toilet bowl or the local cleaning device,
A casing provided between the water supply device and the cleaning nozzle and through which the cleaning water flows, and metal ions having bactericidal properties contained in the casing and coming into contact with the cleaning water are eluted in the cleaning water. A disinfectant imparting part comprising a granular disinfectant
An electrical resistance detector for detecting an electrical resistance value of the washing water flowing inside the casing;
A heating device provided between the introduction part for introducing the cleaning water in the water supply device and the sterilization imparting part, and for heating the cleaning water;
A control device for controlling at least the heating device,
The control device includes a temperature control unit that controls the temperature of the cleaning water supplied to the sterilization imparting unit based on the electrical resistance value detected by the electrical resistance detection unit by the heating device. Local cleaning device. The casing includes an inflow port through which the cleaning water flows and an outflow port from which the cleaning water flows out.
The local cleaning device according to claim 1, wherein a flow path cross-sectional area of the inlet is smaller than a flow path cross-sectional area of the outlet. The inlet is provided so that the washing water flows into the casing along a first direction,
The outlet is provided so that the washing water flows out of the casing along the second direction,
The local cleaning apparatus according to claim 2, wherein the first direction and the second direction are in a twisted relationship.

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