JP7409052B2 - sanitary cleaning equipment - Google Patents

Description

Aspects of the present invention generally relate to sanitary cleaning devices.

Patent Document 1 discloses a technique for irradiating ultraviolet light (UV light) having a sterilizing effect to a private part cleaning nozzle when a human body is not detected, in order to remove dirt attached to the private part cleaning nozzle. .

JP2013-83141A

Around the private parts cleaning nozzle, a nozzle storage part in which the private parts cleaning nozzle is stored and a nozzle lid for suppressing urine etc. from entering the nozzle storage part can be provided in the opening at the front end of the nozzle storage part. be. In this case, when the private part cleaning nozzle is irradiated with sterilizing light such as ultraviolet light, the nozzle accommodating part and the like can be sterilized by also irradiating the sterilizing light.

In order to safely sterilize the inside of the nozzle housing using the sterilizing light, it is preferable to irradiate the sterilizing light when no human body is detected. However, with a configuration that irradiates sterilizing light when no human body is detected, when multiple users use the sanitary cleaning device continuously, the time when no human body is detected becomes shorter, and the sterilizing light is emitted inside the nozzle housing. There is a possibility that sufficient time for irradiation cannot be secured. For example, in sanitary cleaning equipment installed in frequently used sites, such as sanitary cleaning equipment installed in public facilities used by an unspecified number of users, there is a possibility that sufficient irradiation time of sterilization light cannot be secured. There is.

The present invention has been made based on the recognition of this problem, and an object of the present invention is to provide a sanitary cleaning device that can safely secure a longer irradiation time when sterilizing a nozzle housing section with sterilizing light. do.

The present invention provides a private parts cleaning nozzle having a water spout for discharging cleansing water toward the user's private parts, a drive device for advancing and retracting the private parts cleaning nozzle, and a device for moving the private parts cleaning nozzle in a retracted state. A casing having a nozzle storage part capable of storing the entire private parts cleaning nozzle, a toilet seat pivotally supported in the casing so as to be openable and closable, and a toilet seat provided so as to be openable and closable with respect to an opening provided at the front end of the nozzle storage part. The nozzle lid is in an open state in which the opening is opened when the private part washing nozzle is advanced, and in a closed state in which the opening is closed in a state in which the whole private part washing nozzle is stored in the nozzle housing part. a nozzle lid, an illumination unit that irradiates the nozzle housing with sterilizing light that has a sterilizing effect, a human body detection sensor that detects a user located at a distance from the toilet seat, and a human body detection sensor that detects a user who is seated on the toilet seat. and a control unit that controls the illumination unit based on detection information of the human body detection sensor and the seating detection sensor, and the control unit is configured to detect when the human body detection sensor is in a detection state. When the occupancy detection sensor is in a non-detection state, the illumination unit is irradiated with the sterilization light, and when the occupancy detection sensor enters the detection state with the irradiation of the sterilization light or when the nozzle lid is opened. The sanitary cleaning device is characterized in that irradiation of the sterilizing light from the illumination section is stopped.

According to this sanitary cleaning device, when the human body detection sensor is in the detection state and the seating detection sensor is in the non-detection state, the illumination section is caused to irradiate the sterilization light. As a result, even if multiple users use the sanitary cleaning device continuously and the time during which no human body is detected is shortened, the disinfection time will be reduced compared to the case where sterilization light is only irradiated when no human body is detected. Bacterial light can be irradiated for a longer period of time. Furthermore, when the seating detection sensor enters a detection state while the sterilization light is being irradiated, or when the nozzle lid is opened, the irradiation of the sterilization light from the illumination unit is stopped. Thereby, it is possible to suppress the user's body from coming close to the nozzle accommodating portion that is being irradiated with the sterilization light, and to improve the safety of the user. Therefore, it is possible to provide a sanitary cleaning device that can safely ensure a longer irradiation time when sterilizing the nozzle housing section with sterilizing light.

According to an aspect of the present invention, a sanitary cleaning device is provided that can safely ensure a longer irradiation time when sterilizing a nozzle housing section with sterilizing light.

FIG. 1 is a perspective view showing a toilet device including a sanitary cleaning device according to an embodiment. FIG. 1 is a block diagram showing the configuration of main parts of a sanitary cleaning device according to an embodiment. 3(a) and 3(b) are cross-sectional views showing the vicinity of the private part cleaning nozzle of the sanitary cleaning device according to the embodiment. It is a top view showing the internal structure of the sanitary washing device concerning an embodiment. It is a perspective view showing a nozzle storage part of a sanitary washing device concerning an embodiment. FIG. 2 is a front sectional view showing the vicinity of a private part cleaning nozzle of the sanitary cleaning device according to the embodiment. It is a front view showing the vicinity of a private part cleaning nozzle of the sanitary cleaning device according to the embodiment. It is a perspective view showing the nozzle lid periphery of the sanitary washing device concerning an embodiment. FIG. 2 is a front view showing the vicinity of a nozzle lid of the sanitary cleaning device according to the embodiment. It is a front view showing a modification of the area around the nozzle lid of the sanitary cleaning device according to the embodiment. It is a graph showing an example of wavelength distribution of sterilization light of the sanitary cleaning device concerning an embodiment. It is a top view showing the modification of the illumination part of the sanitary washing device concerning an embodiment. It is a flow chart showing an example of operation of the sanitary cleaning device concerning an embodiment. It is a flow chart showing an example of operation in pre-use mode. It is a flow chart showing an example of operation in after-use mode. It is a flow chart showing an example of operation in non-use mode. It is a block diagram showing a modification of the sanitary washing device concerning an embodiment. It is a flowchart showing a modification of the operation in the pre-use mode. It is a flowchart showing a modification of the operation in the pre-use mode.

Embodiments of the present invention will be described below with reference to the drawings. Note that in each drawing, similar components are denoted by the same reference numerals, and detailed explanations are omitted as appropriate.
FIG. 1 is a perspective view showing a toilet device including a sanitary cleaning device according to an embodiment.
As shown in FIG. 1, the toilet device includes a seated toilet bowl (hereinafter simply referred to as a "toilet bowl" for convenience of explanation) 800 and a sanitary cleaning device 100 installed thereon. The sanitary cleaning device 100 includes a casing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are each pivotally supported by a casing 400 so as to be freely openable and closable.

Inside the casing 400, there is a built-in private part cleaning function section that realizes cleaning of private parts such as the buttocks of a user sitting on the toilet seat 200. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects whether a user is sitting on the toilet seat 200. As the seating detection sensor 404, for example, a mechanical switch that detects seating by turning on/off a contact, an electrostatic sensor that detects seating by a change in capacitance, or the like is used. However, the seating detection sensor 404 is not limited to these, and may be any sensor that can detect that the user is sitting on the toilet seat 200.

When the seating detection sensor 404 detects the user sitting on the toilet seat 200, when the user operates the operation unit 500 (see FIG. 2), such as a remote control, the private part cleaning nozzle (hereinafter, for convenience of explanation, simply " The nozzle 473 can be advanced into and retracted from the bowl 801 of the toilet bowl 800. Note that the sanitary cleaning device 100 shown in FIG. 1 is shown in a state in which the nozzle 473 has advanced into the bowl 801.

The nozzle 473 discharges water (washing water) toward the human body's private parts to clean the human body's private parts. A bidet cleaning spout 474a and a butt cleaning spout 474b are provided at the tip of the nozzle 473. The nozzle 473 can wash the female private parts of a woman sitting on the toilet seat 200 by jetting water from a bidet washing spout 474a provided at its tip. Alternatively, the nozzle 473 can wash the "butt" of the user sitting on the toilet seat 200 by jetting water from a butt washing spout 474b provided at its tip. Note that in the present specification, "water" includes not only cold water but also heated hot water.

Modes for washing the "butt" include, for example, "butt washing" and "soft washing" which gently washes with a water stream softer than "butt washing". The nozzle 473 can perform, for example, "bidet cleaning," "butt cleaning," and "soft cleaning."

In the nozzle 473 shown in FIG. 1, the bidet cleaning spout 474a is provided closer to the tip of the nozzle 473 than the butt cleaning spout 474b, but the installation positions of the bidet cleaning spout 474a and the butt cleaning spout 474b is not limited to this. The bidet cleaning spout 474a may be provided closer to the rear end of the nozzle 473 than the butt cleaning spout 474b. Moreover, although the nozzle 473 shown in FIG. 1 is provided with two water spouts, three or more water spouts may be provided.

FIG. 2 is a block diagram showing the configuration of main parts of the sanitary cleaning device according to the embodiment.
FIG. 2 shows the main configurations of the waterway system and the electrical system.
As shown in FIG. 2, the sanitary cleaning device 100 includes a water guide section 20. The water guide section 20 has a conduit 20a leading from the water supply source 10 such as a tap or a water storage tank to the nozzle 473. The water guide section 20 guides water supplied from the water supply source 10 to the nozzle 473 through the conduit 20a. The conduit 20a is formed by, for example, various parts such as a solenoid valve 431, a heat exchanger unit 440, and a flow path switching part 472, which will be described below, and a plurality of pipes connecting these parts.

A solenoid valve 431 is provided upstream of the water guide section 20 . The electromagnetic valve 431 is an electromagnetic valve that can be opened and closed, and controls the supply of water based on a command from the control unit 405 provided inside the casing 400. In other words, the solenoid valve 431 opens and closes the conduit 20a. By opening the solenoid valve 431, water supplied from the water supply source 10 flows into the pipe line 20a.

A pressure regulating valve 432 is provided downstream of the solenoid valve 431 . The pressure regulating valve 432 regulates the pressure within the pipe line 20a within a predetermined pressure range when the water supply pressure is high. A check valve 433 is provided downstream of the pressure regulating valve 432 . The check valve 433 suppresses backflow of water to the upstream side of the check valve 433 when the pressure inside the pipe 20a decreases.

A heat exchanger unit 440 (heating section) is provided downstream of the check valve 433. The heat exchanger unit 440 has a heater and heats the water supplied from the water supply source 10 to raise the temperature to, for example, a specified temperature. That is, heat exchanger unit 440 generates hot water.

The heat exchanger unit 440 is an instantaneous heat exchanger using, for example, a ceramic heater. An instant heating type heat exchanger can heat water to a specified temperature in a shorter time than a hot water storage heating type heat exchanger using a hot water storage tank. Note that the heat exchanger unit 440 is not limited to an instantaneous heating type heat exchanger, but may be a hot water storage heating type heat exchanger. Further, the heating section is not limited to a heat exchanger, and may be one using another heating method, such as one using microwave heating, for example.

Heat exchanger unit 440 is connected to control section 405. The control unit 405 raises the temperature of the water to the temperature set by the operation unit 500, for example, by controlling the heat exchanger unit 440 according to the operation of the operation unit 500 by the user.

A flow sensor 442 is provided downstream of the heat exchanger unit 440. Flow sensor 442 detects the flow rate of water discharged from heat exchanger unit 440. That is, the flow rate sensor 442 detects the flow rate of water flowing within the pipe line 20a. Flow rate sensor 442 is connected to control section 405. The flow rate sensor 442 inputs the flow rate detection result to the control unit 405.

An electrolytic cell unit 450 is provided downstream of the flow rate sensor 442. The electrolytic cell unit 450 generates a liquid (functional water) containing hypochlorous acid from tap water by electrolyzing the tap water flowing therein. Electrolytic cell unit 450 is connected to control section 405. The electrolytic cell unit 450 generates functional water based on control by the control unit 405.

The functional water produced in the electrolytic cell unit 450 may be, for example, a solution containing metal ions such as silver ions and copper ions. Alternatively, the functional water generated in the electrolytic cell unit 450 may be a solution containing electrolytic chlorine, ozone, or the like. Alternatively, the functional water generated in the electrolytic cell unit 450 may be acidic water or alkaline water.

A vacuum breaker (VB) 452 is provided downstream of the electrolytic cell unit 450. The vacuum breaker 452 has, for example, a channel for flowing water, an intake port for taking air into the channel, and a valve mechanism that opens and closes the intake port. For example, the valve mechanism closes the intake port when water is flowing through the flow path, and opens the intake port when the flow of water stops to take air into the flow path. That is, the vacuum breaker 452 takes air into the pipe line 20a when there is no flow of water in the water guide section 20. For example, a float valve is used as the valve mechanism.

The vacuum breaker 452 takes air into the pipe line 20a as described above, thereby promoting, for example, water removal from a portion of the pipe line 20a downstream of the vacuum breaker 452. Vacuum breaker 452, for example, facilitates drainage of water from nozzle 473. In this way, the vacuum breaker 452 removes water from the nozzle 473 and takes air into the nozzle 473, thereby removing cleaning water from the nozzle 473, dirty water accumulated in the bowl 801, etc. from the water supply source 10 ( Prevents backflow to the water supply side.

A pressure modulation section 454 is provided downstream of the vacuum breaker 452. The pressure modulation unit 454 applies pulsation or acceleration to the flow of water in the pipe line 20a of the water guide unit 20, and causes water to be spouted from the bidet cleaning spout 474a and the butt cleaning spout 474b of the nozzle 473 and the water spout of the nozzle cleaning unit 478. It gives pulsation to the water. That is, the pressure modulator 454 changes the flow state of water flowing inside the pipe 20a. Pressure modulation section 454 is connected to control section 405. The pressure modulator 454 varies the flow state of water based on control by the controller 405. The pressure modulator 454 varies the pressure of the water within the conduit 20a.

A flow rate adjustment section 471 is provided downstream of the pressure modulation section 454. The flow rate adjustment unit 471 adjusts the water force (flow rate). A flow path switching section 472 is provided downstream of the flow rate adjustment section 471 . The flow path switching section 472 opens/closes and switches the water supply to the nozzle 473 and the nozzle cleaning section 478. The flow rate adjustment section 471 and the flow path switching section 472 may be provided as one unit. The flow rate adjustment section 471 and the flow path switching section 472 are connected to the control section 405. The operations of the flow rate adjustment section 471 and the flow path switching section 472 are controlled by the control section 405.

A nozzle 473, a nozzle cleaning section 478, and a spray nozzle 479 are provided downstream of the flow path switching section 472. The nozzle 473 receives a driving force from the nozzle motor 476, and advances into or retreats from the bowl 801 of the toilet bowl 800. That is, the nozzle motor 476 is a drive device that advances and retreats the nozzle 473 based on commands from the control unit 405.

The nozzle cleaning section 478 cleans the outer peripheral surface (body) of the nozzle 473 by, for example, jetting functional water or water from a water spouting section. The spray nozzle 479 sprays cleaning water or functional water into a mist onto the bowl 801 . In this example, a spray nozzle 479 is provided separately from a nozzle 473 for washing the human body. The present invention is not limited to this, and the nozzle 473 may be provided with a water spout for spraying a mist-like liquid onto the bowl 801.

Further, downstream of the flow path switching section 472, a butt wash channel 21, a soft wash channel 22, and a bidet wash channel 23 are provided. The butt wash channel 21 and the soft wash channel 22 guide water supplied from the water supply source 10 via the water guide section 20 and functional water generated in the electrolyzer unit 450 to the butt wash spout 474b. The bidet cleaning channel 23 guides water supplied from the water supply source 10 via the water guide section 20 and functional water generated in the electrolytic cell unit 450 to the bidet cleaning water spout 474a.

Further, downstream of the flow path switching section 472, a surface cleaning flow path 24 and a spray flow path 25 are provided. The surface cleaning channel 24 guides water supplied from the water supply source 10 via the water guide section 20 and functional water generated in the electrolyzer unit 450 to the water discharge section of the nozzle cleaning section 478 . The spray channel 25 guides water supplied from the water supply source 10 via the water guide section 20 or functional water generated in the electrolyzer unit 450 to the spray nozzle 479 .

The control unit 405 controls the flow path switching unit 472 to switch the respective flows of the butt wash channel 21, the soft wash channel 22, the bidet wash channel 23, the surface wash channel 24, and the spray channel 25. Switch the opening and closing of the road. In this way, the flow path switching section 472 is in a state in which each of the plurality of water spouts such as the bidet cleaning spout 474a, the butt cleaning spout 474b, the nozzle cleaning section 478, and the spray nozzle 479 is communicated with the pipe line 20a. and a state of not communicating with the conduit 20a.

The control unit 405 is supplied with power from the power supply circuit 401 and controls the electromagnetic valve 431 and the heat exchanger based on signals from the human body detection sensor 403, the seating detection sensor 404, the flow rate sensor 442, the operation unit 500, etc. The unit 440, the electrolytic cell unit 450, the pressure modulation section 454, the flow rate adjustment section 471, the flow path switching section 472, the nozzle motor 476, etc. are controlled.

Further, the control unit 405 controls the illumination unit 700 based on detection information from the human body detection sensor 403 and the seating detection sensor 404, for example. The illumination unit 700 irradiates the periphery of the nozzle 473 (such as a nozzle housing section described below) with sterilizing light that has a sterilizing effect. The illumination unit 700 will be described later.

As shown in FIG. 1, the human body detection sensor 403 is provided to be embedded in a recess 409 formed on the upper surface of the casing 400, and detects a user (human body) located away from the toilet seat 200. . In other words, the human body detection sensor 403 detects a user near the sanitary cleaning device 100. Further, a transparent window 310 is provided at the rear of the toilet lid 300. Therefore, when the toilet lid 300 is closed, the human body detection sensor 403 can detect the presence of the user through the transparent window 310. As the human body detection sensor 403, for example, a distance measurement sensor using infrared rays, a pyroelectric sensor, a microwave sensor, or the like is used. However, the human body detection sensor 403 is not limited to these, and may be any sensor capable of detecting a user located away from the toilet seat 200.

The sanitary cleaning device 100 further includes an opening/closing mechanism 420 and a toilet seat position detection sensor 422. The opening/closing mechanism 420 drives the toilet lid 300 to open and close. The opening/closing mechanism 420 is configured by, for example, a motor. The opening/closing mechanism 420 is connected to the control unit 405 and operates under the control of the control unit 405 to move the toilet lid 300 between a closed position and an open position. For example, the control unit 405 automatically opens the toilet lid 300 in response to detection of the user by the human body detection sensor 403.

The toilet seat position detection sensor 422 detects the opening operation of the toilet seat 200. The toilet seat position detection sensor 422 is connected to the control unit 405 and inputs the detection result of the opening operation of the toilet seat 200 to the control unit 405 . The toilet seat position detection sensor 422 detects, for example, the start of movement of the toilet seat 200 from the closed position to the open position as an opening operation of the toilet seat 200. In other words, the toilet seat position detection sensor 422 detects the movement of the toilet seat 200 away from the closed position as an opening operation of the toilet seat 200. For example, the toilet seat position detection sensor 422 may detect movement of the toilet seat 200 to the open position as an opening operation of the toilet seat 200. The opening operation of the toilet seat 200 detected by the toilet seat position detection sensor 422 may be a movement of the toilet seat 200 to any position away from the closed position. In other words, the toilet seat position detection sensor 422 only needs to be configured to be able to detect that the toilet seat 200 is not in the closed position. In other words, the closed position of the toilet seat 200 is a state in which the toilet seat 200 is lowered, and the open position of the toilet seat 200 is, in other words, a state in which the toilet seat 200 is raised.

For example, a mechanical switch, a magnetic sensor, an optical sensor, or the like is used as the toilet seat position detection sensor 422. However, the toilet seat position detection sensor 422 is not limited to these, and may be any sensor capable of detecting the opening operation of the toilet seat 200.

The sanitary cleaning device 100 may further include, for example, an opening/closing mechanism that drives the toilet seat 200 to open and close, a detection sensor that detects the opening operation of the toilet lid 300, and the like. Note that the opening/closing mechanism 420 and the toilet seat position detection sensor 422 are provided as necessary and can be omitted. The sanitary cleaning device 100 does not necessarily have to have the function of automatically opening and closing the toilet seat 200 and the toilet lid 300. The sanitary cleaning device 100 does not necessarily have to have a function of detecting the opening operation of the toilet seat 200 and the toilet lid 300.

The casing 400 also has various devices such as a "warm air drying function" that blows warm air toward the buttocks of the user sitting on the toilet seat 200 to dry them, a "deodorizing unit" and an "indoor heating unit." A mechanism may be provided as appropriate. At this time, an exhaust port 407 from the deodorizing unit and an exhaust port 408 from the indoor heating unit are provided on the side surface of the casing 400 as appropriate. However, in the present invention, the sanitary cleaning function section and other additional function sections do not necessarily need to be provided.

3(a) and 3(b) are cross-sectional views showing the vicinity of the private part cleaning nozzle of the sanitary cleaning device according to the embodiment.
FIG. 4 is a plan view showing the internal structure of the sanitary cleaning device according to the embodiment.
FIG. 5 is a perspective view showing a nozzle housing part of the sanitary cleaning device according to the embodiment.
FIG. 6 is a front sectional view showing the vicinity of the private part cleaning nozzle of the sanitary cleaning device according to the embodiment. FIG. 7 is a front view showing the vicinity of the private part cleaning nozzle of the sanitary cleaning device according to the embodiment.
Note that in FIG. 4, components other than the nozzle 473 of the sanitary cleaning device 100 are omitted.

As shown in FIGS. 3A and 4, the casing 400 has a nozzle storage section 480 that can store the entire nozzle 473 when the nozzle 473 is in a retracted state. The nozzle storage section 480 is a member for storing the nozzle 473, and is adjacent to the nozzle 473 in a state where the entire nozzle 473 is stored. In this example, as shown in FIG. 5, the nozzle storage section 480 includes a nozzle support section 482 and a nozzle cleaning section 478.

The nozzle support part 482 supports the nozzle 473 below the nozzle 473. The nozzle support portion 482 is inclined downward in the direction from the rear to the front. The nozzle 473 advances and retreats while sliding with respect to the nozzle support portion 482. The nozzle storage section 480 may be provided with a cylindrical member that stores the nozzle 473, for example.

The nozzle cleaning section 478 is attached to the front end of the nozzle support section 482. As shown in FIGS. 3(a) and 3(b), the nozzle cleaning section 478 includes a member (water discharging section) 478a in which a water discharging hole for discharging cleaning water is formed, and a support body 478b thereof. . As shown in FIGS. 3A, 3B, and 7, an opening 481 is provided at the front end of the nozzle storage section 480. The opening 481 is provided at the lower part of the front end of the casing 400. Nozzle cleaning section 478 is located behind opening 481 . The nozzle cleaning unit 478 cleans the outer circumferential surface (body) of the nozzle 473, for example, by jetting functional water or water from the water spouting unit 478a when the nozzle 473 moves back and forth (self-cleaning).

A nozzle lid 600 is provided in front of the nozzle 473. The nozzle lid 600 is provided so as to be openable and closable with respect to an opening 481 provided at the front end of the nozzle storage section 480. As shown in FIG. 3B, the nozzle lid 600 is in an open state in which the opening 481 is opened when the nozzle 473 is advanced, and as shown in FIG. When it is housed in the opening 481, it is in a closed state. For example, when the nozzle lid 600 is in a closed state, the front side of the opening 481 is blocked by the nozzle lid 600.

Nozzle lid 600 has a back surface 600a and a front surface 600b. The back surface 600a is a surface located on the nozzle 473 side in the closed state. The front surface 600b is a surface located on the opposite side to the back surface 600a. In other words, the back surface 600a is a surface located on the rear side in the closed state, and the front surface 600b is a surface located on the front side in the closed state.

When the nozzle 473 is not in use, it is stored in the nozzle storage section 480, as shown in FIG. 3(a). When the nozzle 473 performs private cleaning, the nozzle 473 slides forward and downward with respect to the nozzle storage section 480. When the nozzle 473 slides forward and downward, the nozzle 473 contacts the nozzle cleaning section 478, and the water spouting section 478a of the nozzle cleaning section 478 and the nozzle lid 600 are pushed upward. For example, before the nozzle 473 reaches a predetermined position, the nozzle 473 is cleaned by water spouted from the water spouting section 478a.

As shown in FIG. 3(b), when the nozzle 473 reaches a predetermined position, water is discharged from the bidet cleaning spout 474a or the butt cleaning spout 474b toward the user's private parts to perform cleaning. When the private part cleaning is completed, the nozzle 473 slides rearward and upward toward the nozzle storage section 480. For example, before the nozzle 473 is stored in the nozzle storage section 480, the nozzle 473 is cleaned by water spouted from the water spouting section 478a. The nozzle 473 is retreated to a predetermined position and is housed in the nozzle housing section 480 as in the state shown in FIG. 3(a).

As shown in FIGS. 3A, 3B, 4, and 6, the sanitary cleaning device 100 includes a lighting section 700 that emits sterilization light that has a sterilization effect. The illumination unit 700 is provided inside the casing 400, for example. As shown in FIGS. 4 and 6, in this example, the illumination section 700 has two light emitting sections 710. The two light emitting parts 710 are provided on the left and right sides below the nozzle support part 482, respectively, and sterilization is performed toward the nozzle support part 482 and the nozzle 473 located above between the two light emitting parts 710. Irradiate light. Further, the two light emitting sections 710 are each provided on the front side of the nozzle storage section 480 (opening 481 side), and irradiate the front side of the nozzle storage section 480 with sterilization light.

The illumination unit 700 includes, for example, a light emitting element 720 (light emitter). The light emitting element 720 is, for example, an LED (Light Emitting Diode). The light emitting element 720 is not limited to an LED, and may be, for example, an LD (Laser Diode) or an OLED (Organic Light Emitting Diode). The light emitting element 720 may be, for example, a cold cathode tube or a hot cathode tube. The wavelength of the sterilization light emitted by the light emitting element 720 is, for example, 250 nm to 480 nm. The light emitting element 720 is connected to the control unit 405 via, for example, a substrate, and is turned on and off based on the control of the control unit 405. The control unit 405 controls the operation of the illumination unit 700 by controlling lighting and extinguishing of the light emitting element 720. Further, the control unit 405 may control the radiation intensity of the light emitting element 720, for example, by adjusting the voltage applied to the light emitting element 720. The light emitting element 720 is provided in the light emitting section 710, for example.

The illumination section 700 irradiates the nozzle storage section 480 with sterilization light. Thereby, the nozzle housing section 480 is sterilized by the sterilizing light. In this example, the illumination unit 700 also irradiates the back surface 600a of the nozzle lid 600 and the front surface 600b of the nozzle lid 600 with the sterilization light. Thereby, the back surface 600a of the nozzle lid 600 and the front surface 600b of the nozzle lid 600 are also sterilized by the sterilization light.

The illumination unit 700 kills or inactivates at least a portion of bacteria attached to the nozzle storage unit 480 and the like by, for example, irradiating with sterilization light. Thereby, the illumination unit 700 reduces live bacteria attached to the nozzle storage unit 480 and the like. In this way, the illumination unit 700 sterilizes the nozzle storage unit 480 and the like by irradiating the sterilization light.

FIG. 8 is a perspective view showing the vicinity of the nozzle lid of the sanitary cleaning device according to the embodiment.
FIG. 9 is a front view showing the vicinity of the nozzle lid of the sanitary cleaning device according to the embodiment.
In addition, in FIG. 9, the toilet lid 300 is omitted.
As shown in FIGS. 8 and 9, when the nozzle lid 600 and the illumination unit 700 are in the closed state, visible light VL is transmitted from the opening 481 or the nozzle lid 600 to the outside of the casing 400 when irradiating sterilization light. can be released. In this example, a nozzle lid 600 is provided that can transmit the sterilization light irradiated onto the nozzle storage section 480, and the sterilization light irradiated onto the nozzle storage section 480 from the illumination section 700 is transmitted through the nozzle lid 600. Then, it is released to the outside of the casing 400. Note that in this example, the sterilization light includes an ultraviolet light component and a visible light component.

Irradiation with sterilizing light is performed, for example, with the entire nozzle 473 housed in the nozzle storage section 480 and with the nozzle lid 600 closed (that is, the nozzle lid 600 is in a closed state). Therefore, it is usually difficult for the user to recognize that the nozzle housing section 480 is being sterilized with the sterilizing light.

In contrast, in the embodiment, visible light VL can be emitted from the opening 481 or the nozzle lid 600 to the outside of the casing 400, so that when the nozzle lid 600 is provided in the opening 481 of the nozzle storage section 480, Also, the user can be made aware that the nozzle housing section 480 is being sterilized with the sterilizing light. Thereby, it can be recognized that the nozzle 473 is stored in a clean place, so even a user who is highly conscious of cleanliness can use the nozzle 473 with peace of mind.

Hereinafter, a means for making it possible to emit visible light VL from the opening 481 or the nozzle lid 600 to the outside of the casing 400 when irradiating the sterilization light with the nozzle lid 600 in the closed state will be described.
FIG. 10 is a front view showing a modified example of the nozzle lid periphery of the sanitary cleaning device according to the embodiment. Note that in FIG. 10, the toilet lid 300 is omitted.
When the nozzle lid 600 is in the closed state, the means for emitting visible light VL from the opening 481 or the nozzle lid 600 to the outside of the casing 400 when irradiating the sterilizing light is to emit the sterilizing light itself containing a visible light component to the opening 481. It is conceivable that the water be released (leaked) from the casing 400 to the outside of the casing 400. More specifically, for example, as shown in FIG. 10, by providing a gap (clearance) between the opening 481 of the nozzle housing part 480 and the nozzle lid 600, the sterilization light irradiated onto the nozzle housing part 480 can be removed. can be released to the outside of the casing 400 through the gap between the opening 481 and the nozzle lid 600.

In this way, in the embodiment, by providing a gap (clearance) between the opening 481 of the nozzle housing section 480 and the nozzle lid 600, the sterilization light irradiated onto the nozzle housing section 480 is transmitted between the opening 481 and the nozzle lid 600. It may be discharged to the outside of the casing 400 through the gap between the two. Note that in this case, for example, the nozzle lid 600 may not transmit sterilization light.

Further, in the embodiment, as described above, the nozzle lid 600 that can transmit the sterilization light irradiated onto the nozzle storage section 480 may be provided. By providing the nozzle lid 600 that can transmit the sterilizing light, the sterilizing light irradiated to the nozzle accommodating part 480 can be removed without having to provide a large clearance between the opening 481 of the nozzle accommodating part 480 and the nozzle lid 600, for example. Light can be transmitted through the nozzle lid 600 and emitted to the outside of the casing 400. This allows the user to recognize that the nozzle storage section 480 is being sterilized with the sterilization light while suppressing the intrusion of urine and the like into the nozzle storage section 480.

In addition, when the sterilization light does not include a visible light component, for example, the wavelength of the sterilization light that does not include a visible light component is converted into light that includes a visible light component, and the converted light is emitted from the nozzle lid 600 to the outside of the casing 400. You may. More specifically, nozzle lid 600 may include, for example, a wavelength converting material. A wavelength conversion material is, for example, a material that, when irradiated with light, emits light that has a peak wavelength different from that of the irradiated light (for example, light that has a peak wavelength on the longer wavelength side than the irradiated light). It is. The wavelength conversion material is, for example, a fluorescent material. The wavelength conversion material is, for example, 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole).

By including the wavelength conversion material in the nozzle lid 600, the wavelength of the sterilization light irradiated onto the nozzle housing section 480 can be converted by the nozzle lid 600. In this way, the nozzle lid 600, for example, receives the sterilization light irradiated into the nozzle storage section 480 and emits visible light VL having a longer wavelength than the sterilization light to the outside of the casing 400 (nozzle lid 600). Contains wavelength conversion material. As a result, for example, the light emitted from the nozzle lid 600 to the outside of the casing 400 can have a longer wavelength than the sterilizing light, so that the nozzle housing section 480 can be sterilized more safely with the sterilizing light. The user can be made aware of this.

For example, even when the radiation intensity of the visible light component is low or when the nozzle housing section 480 is irradiated with sterilization light that does not contain the visible light component, the sterilization light can be converted into light containing the visible light component by the wavelength conversion material. It can be converted into and discharged to the outside of the casing 400. As a result, the sterilization effect can be further enhanced by the ultraviolet light component with high sterilization performance, and by emitting light that has been converted to include a visible light component to the outside of the casing 400, it is visible to the user. The effect can also be satisfied.

Further, in the embodiment, the nozzle lid 600 may include, for example, a luminescent material. A luminescent material is, for example, a material that absorbs the energy of irradiated light and emits it as light. The luminous material is, for example, strontium aluminate.

Since the sterilizing light has a sterilizing effect, it is basically preferable not to irradiate the user with the sterilizing light. By including the phosphorescent material in the nozzle lid 600, it is possible to make it appear as if the nozzle housing part 480 is being sterilized with sterilizing light even when the nozzle accommodating part 480 is not actually being irradiated with sterilizing light. It becomes possible. This allows the user to more safely recognize that the nozzle housing section 480 is being sterilized with the sterilizing light.

Next, the sterilization light irradiated from the illumination unit 700 will be explained.
In the embodiment, the illumination unit 700 irradiates, for example, sterilization light containing an ultraviolet light component and a visible light component. In this way, by irradiating the nozzle housing section 480 with irradiation light that includes both the ultraviolet light component that has high sterilization performance and the visible light component that has lower sterilization performance than the ultraviolet light component but is visible, For example, when the sterilizing light itself is emitted (leaked) from the opening 481 to the outside of the casing 400, both the sterilizing effect of the sterilizing light and the visual effect for the user can be achieved.

It is sufficient that the visible light component has a radiation intensity that is visible to the user, and in order to enhance the sterilization effect, it is desirable to increase the radiation intensity of the ultraviolet light component. Therefore, in the embodiment, the illumination unit 700 irradiates, for example, sterilization light in which the radiation intensity of the ultraviolet light component is higher than the radiation intensity of the visible light component. Thereby, the sterilization effect can be further enhanced while satisfying the visual recognition effect for the user.

The peak wavelength of the sterilization light is, for example, 250 nm or more and 480 nm or less. The peak wavelength of the sterilizing light is preferably 350 nm or more and 480 nm or less. In this way, by setting the peak wavelength of the sterilization light to around 400 nm, which is the boundary between the visible light range and the ultraviolet light range (for example, 350 nm or more and 480 nm or less), the ultraviolet light component can be extracted from one light source (light emitting element 720). It is possible to irradiate sterilizing light containing a visible light component and a visible light component. Thereby, the number of light sources provided in the illumination section 700 can be further reduced, and the sanitary cleaning device 100 can be downsized.

FIG. 11 is a graph showing an example of the wavelength distribution of sterilization light of the sanitary cleaning device according to the embodiment. As shown in FIG. 11, in this example, the sterilization light includes light with a wavelength of about 360 nm to about 420 nm, and the peak wavelength is about 385 nm. In this way, by setting the peak wavelength of the sterilization light near the boundary between the visible light range and the ultraviolet light range, for example, the UV-A component (315 nm or more and 400 nm or less), which is an ultraviolet light component, and the violet to blue light component can be Sterilization light containing a visible light component (400 nm or more and 480 nm or less) can be irradiated. With such sterilization light, it is possible to achieve both sterilization effect and visual recognition effect for the user.

Note that the light source of the sterilization light is not limited to one. For example, as sterilization light, one light source may emit light that contains an ultraviolet light component and no visible light component, and another light source may emit light that contains a visible light component and does not contain an ultraviolet light component. . In other words, the ultraviolet light component and the visible light component included in the sterilization light may be irradiated simultaneously from different light sources.

Furthermore, the sterilization light is not limited to light containing an ultraviolet light component and a visible light component. For example, when the nozzle lid 600 includes a wavelength conversion material, the sterilization light may be light that contains an ultraviolet light component and does not contain a visible light component.

FIG. 12 is a plan view showing a modification of the illumination part of the sanitary cleaning device according to the embodiment.
As shown in FIG. 12, the light emitting element 720 may be provided at a position away from the nozzle housing section 480. In this example, two light emitting elements 720 are provided at positions left and right away from the nozzle housing part 480, and the two light emitting elements 720 are connected to the left and right sides of the nozzle housing part 480 via optical fibers 730, respectively. It is connected to two light emitting sections 710 provided in the.

In the embodiment, as described above, sterilization light is guided from the light emitting element 720 to the light emitting unit 710 using the optical fiber 730 or the like, and sterilization is carried out from the light emitting unit 710 provided near the nozzle housing 480 to the nozzle housing 480. Light may be irradiated.

Next, a specific example of the operation of the sanitary cleaning device according to the embodiment will be described with reference to the drawings.
FIG. 13 is a flowchart illustrating an example of the operation of the sanitary cleaning device according to the embodiment.
As shown in FIG. 13, while waiting for a user to enter the room, the control unit 405 of the sanitary cleaning device 100 first determines whether the human body detection sensor 403 has detected a human body based on the detection information of the human body detection sensor 403. It is determined whether or not (step S101 in FIG. 13).

When the control unit 405 determines that the human body detection sensor 403 has switched from the non-detection state to the detection state, the control unit 405 causes the illumination unit 700 to irradiate sterilization light when the human body detection sensor 403 switches from the non-detection state to the detection state. mode is executed (step S102 in FIG. 13).

After executing the pre-use mode operation, the control unit 405 determines whether the user has left the toilet seat 200 based on the detection information of the seating detection sensor 404 (step S103 in FIG. 13). In other words, the control unit 405 determines whether the seating detection sensor 404 has switched from the detection state to the non-detection state.

When the control unit 405 detects the seating, the control unit 405 executes an after-use mode in which the illumination unit 700 irradiates sterilization light when the seating detection sensor 404 switches from the detection state to the non-detection state (step S104 in FIG. 13). . After executing the after-use mode, the control unit 405 returns to the process of step S101.

In this way, the control unit 405 executes the before-use mode and the after-use mode. In this way, by irradiating the sterilizing light both before and after use, even if multiple users use the sanitary cleaning device 100 continuously and the time during which no human body is detected is shortened, the sterilizing light can be removed. Bacterial light can be irradiated for a longer period of time.

When the control unit 405 determines that the human body detection sensor 403 is in the non-detection state in step S101, the control unit 405 subsequently determines whether a predetermined period of time has elapsed since the timing at which the human body detection sensor 403 switched from the detection state to the non-detection state. (Step S105 in FIG. 13). In other words, the control unit 405 determines whether the state in which no human body is detected continues for a predetermined period of time.

If the control unit 405 determines that the predetermined time has elapsed, it executes a non-use mode in which the illumination unit 700 irradiates sterilization light when the human body detection sensor 403 is in a non-detection state (step S106 in FIG. 13). As a result, even if the frequency of use is low and the irradiation time of the sterilizing light in the pre-use mode and the after-use mode is short, by executing the mode when not in use, the sterilizing light is applied inside the nozzle storage section 480. It is possible to secure longer irradiation time. After executing the non-use mode, the control unit 405 returns to the process of step S101.

FIG. 14 is a flowchart illustrating an example of the operation in the pre-use mode.
As shown in FIG. 14, when the control section 405 starts the operation in the pre-use mode, it activates the illumination section 700 to irradiate the illumination section 700 with sterilization light (step S201 in FIG. 14). In other words, when the human body detection sensor 403 switches from the non-detection state to the detection state, the control unit 405 operates the illumination unit 700 to irradiate the illumination unit 700 with sterilization light.

As a result, the inside of the nozzle housing part 480 can be sterilized with the sterilizing light, and the visible light VL is emitted to the outside of the casing 400, allowing the user to sterilize the inside of the nozzle housing part 480 with the sterilizing light. I can show you where I am.

Further, when the human body detection sensor 403 switches from the non-detection state to the detection state, the control unit 405 operates the illumination unit 700 and operates the opening/closing mechanism 420 to move the toilet lid 300 from the closed position to the open position. move it to That is, the control unit 405 automatically opens the toilet lid 300 in response to the detection of a human body.

After emitting the visible light VL and opening the toilet lid 300, the control unit 405 determines whether a predetermined time has elapsed since the start of irradiation with the sterilizing light (emission of the visible light VL) (see FIG. 14). Step S202).

When the control unit 405 determines that the predetermined time has not elapsed, it subsequently determines whether the toilet seat position detection sensor 422 has detected the opening operation of the toilet seat 200 (step S203 in FIG. 14).

If the control unit 405 determines that the opening operation of the toilet seat 200 has not been detected, the control unit 405 subsequently determines whether the seating detection sensor 404 has detected the seating on the toilet seat 200 (step S204 in FIG. 14).

If the control unit 405 determines that seating on the toilet seat 200 has been detected, the control unit 405 stops the operation of the illumination unit 700, and stops the irradiation of the sterilization light and the emission of the visible light VL (step S205 in FIG. 14). Thereby, it is possible to prevent the user's buttocks from coming too close to the nozzle housing section 480 that is being irradiated with the sterilization light.

Furthermore, if the control unit 405 determines that a predetermined period of time has elapsed before detecting that the person is seated on the toilet seat 200, the control unit 405 stops the operation of the illumination unit 700, irradiates the sterilization light, and emits the visible light VL. stop. In this case as well, it is possible to prevent the user's body from coming too close to the nozzle housing section 480 that is being irradiated with sterilization light.

Furthermore, if the toilet seat position detection sensor 422 determines that the opening operation of the toilet seat 200 is detected before the seating on the toilet seat 200 is detected, the control unit 405 also stops the operation of the illumination unit 700 and sterilizes the toilet seat 200. Light irradiation and emission of visible light VL are stopped. In this case as well, it is possible to prevent the user's body from coming too close to the nozzle housing section 480 that is being irradiated with sterilization light.

The control unit 405 terminates the operation in the pre-use mode by stopping the operation of the illumination unit 700 and stopping the irradiation of the sterilizing light and the emission of the visible light VL.

In this manner, the control unit 405 causes the illumination unit 700 to emit sterilization light when the human body detection sensor 403 is in the detection state and the seating detection sensor 404 is in the non-detection state. As a result, even if multiple users use the sanitary cleaning device 100 continuously and the time during which a human body is not detected becomes shorter, compared to the case where sterilization light is irradiated only when a human body is not detected, Sterilization light can be irradiated for a longer period of time. Furthermore, when the seating detection sensor 404 enters the detection state while the sterilization light is being irradiated, the irradiation of the sterilization light from the illumination unit 700 is stopped. Thereby, it is possible to suppress the user's body from coming close to the inside of the nozzle housing section 480 that is being irradiated with the sterilization light, and it is possible to improve the safety of the user. Therefore, it is possible to provide the sanitary cleaning device 100 that can safely ensure a longer irradiation time when the nozzle housing section 480 is sterilized with sterilizing light.

FIG. 15 is a flowchart illustrating an example of the operation in the after-use mode.
As shown in FIG. 15, upon starting the operation in the after-use mode, the control unit 405 determines whether the toilet seat position detection sensor 422 has detected the opening operation of the toilet seat 200 (step S301 in FIG. 15). In other words, the control unit 405 determines whether the toilet seat position detection sensor 422 has detected the opening operation of the toilet seat 200 following the detection of the seat being unseated.

When the control unit 405 determines that the opening operation of the toilet seat 200 is not detected, the control unit 405 operates the illumination unit 700 to irradiate the illumination unit 700 with sterilization light (step S302 in FIG. 15). Thereby, the control unit 405 sterilizes the nozzle housing section 480 after using the sanitary cleaning device 100. In addition, by irradiating the illumination unit 700 with sterilizing light and emitting visible light VL to the outside of the casing 400 after detecting that the person has left the seat, the user can easily store the nozzle when the user has finished using the sanitary cleaning device 100. It is possible to show the inside of the section 480 being sterilized with sterilizing light. Thereby, for example, it is possible to give the user a greater sense of security.

After starting the irradiation of the sterilization light, the control unit 405 determines whether the human body detection sensor 403 has detected the next human body (step S303 in FIG. 15). That is, the control unit 405 determines whether the human body detection sensor 403 has switched from the detection state to the non-detection state and then switched back to the detection state.

When the control unit 405 determines that the next human body has been detected, the control unit 405 shifts to the pre-use mode operation (step S304 in FIG. 15).

On the other hand, if it is determined that the next human body has not been detected, the control unit 405 subsequently determines whether a predetermined time has elapsed since the start of irradiation with the sterilization light (step S305 in FIG. 15). .

The control unit 405 repeats the processing of steps S303 to S305 until a predetermined period of time has elapsed. When the control unit 405 determines that the predetermined time has elapsed, the control unit 405 stops the operation of the illumination unit 700, and stops the illumination unit 700 from irradiating the sterilizing light (step S306 in FIG. 15). Thereby, the control unit 405 sterilizes the nozzle housing section 480 for a predetermined period of time. The control unit 405 ends the operation in the after-use mode by stopping the irradiation of the sterilizing light.

Further, if the control unit 405 determines in step S301 that the opening operation of the toilet seat 200 has been detected, the control unit 405 ends the operation in the after-use mode without sterilizing the nozzle storage unit 480. Thereby, it is possible to prevent the user's body from coming too close to the nozzle housing section 480 that is being irradiated with sterilization light.

FIG. 16 is a flowchart illustrating an example of the operation in the non-use mode.
As shown in FIG. 16, when the control section 405 starts the operation in the non-use mode, it operates the illumination section 700 and causes the illumination section 700 to irradiate sterilization light (step S401 in FIG. 16). In other words, the control unit 405 operates the illumination unit 700 to irradiate the illumination unit 700 with sterilization light when the state in which no human body is detected continues for a predetermined period of time. Thereby, the control unit 405 sterilizes the nozzle storage unit 480 when the sanitary cleaning device 100 is not in use.

After starting the irradiation of the sterilization light, the control unit 405 determines whether the human body detection sensor 403 has detected the next human body (step S402 in FIG. 16). That is, the control unit 405 determines whether the human body detection sensor 403 has switched from the detection state to the non-detection state and then switched back to the detection state.

When the control unit 405 determines that the next human body has been detected, the control unit 405 shifts to the pre-use mode operation (step S403 in FIG. 16).

On the other hand, if it is determined that the next human body has not been detected, the control unit 405 subsequently determines whether a predetermined time has elapsed since the start of irradiation with the sterilization light (step S404 in FIG. 16). .

The control unit 405 repeats the processing of steps S402 to S404 until a predetermined period of time has elapsed. When the control unit 405 determines that the predetermined time has elapsed, the control unit 405 stops the operation of the illumination unit 700, and stops the illumination unit 700 from irradiating the sterilization light (step S405 in FIG. 16). Thereby, the control unit 405 sterilizes the nozzle housing section 480 for a predetermined period of time. The control unit 405 ends the operation in the non-use mode by stopping the irradiation of the sterilizing light.

The control unit 405 makes the operating time of the lighting unit 700 in the non-use mode longer than the operating time of the lighting unit 700 in the before-use mode and the operating time of the lighting unit 700 in the after-use mode. More specifically, the operating time of the illumination unit 700 in each mode is a predetermined time for each of step S202, step S305, and step S404.

The operating time of the illumination unit 700 in each mode may change depending on conditions such as seating detection and human body detection. More specifically, the operating time of the illuminating unit 700 in each mode is the longest operating time of the illuminating unit 700 in one operation in each mode (for example, the predetermined time in step S202, step S305, and step S404). The longest operating time of the illuminating unit 700 in one operation in the non-use mode is the longest operating time of the illuminating unit 700 in one operation in the before-use mode and the longest operating time of the illuminating unit 700 in one operation in the after-use mode. longer than the longest operating time.

The longest operating time of the illumination unit 700 in one operation in the pre-use mode is, for example, 1 second or more and 5 seconds or less. This allows the user to see the area where the inside of the nozzle storage section 480 is being sterilized with the sterilization light, while also preventing the user's body from getting too close to the inside of the nozzle storage section 480 that is being irradiated with the sterilization light. It is possible to prevent this from happening.

The longest operating time of the illumination unit 700 in one operation in the after-use mode is, for example, about several minutes. The longest operating time of the illumination unit 700 in one operation in the non-use mode is, for example, 10 minutes or more. Thereby, the inside of the nozzle housing part 480 can be appropriately sterilized with the sterilizing light.

The operating time of the illumination unit 700 in each mode is not limited to the above. The operating time of the illumination section 700 in the pre-use mode is such that the user can see the inside of the nozzle storage section 480 being sterilized with the sterilization light, and the nozzle storage section 480 is illuminated with the sterilization light. Any period of time that can prevent the user's body from coming too close to the inside of 480 may be used. The operating time of the illumination unit 700 in the after-use mode and the operating time of the illumination unit 700 in the non-use mode may be any time necessary for sterilizing the nozzle storage unit 480.

In this way, the control unit 405 has a mode when not in use. As a result, even if the frequency of use is low and the irradiation time of the sterilizing light in the pre-use mode and the after-use mode is short, by executing the mode when not in use, the sterilizing light is applied inside the nozzle storage section 480. It is possible to secure longer irradiation time.

FIG. 17 is a block diagram showing a modification of the sanitary cleaning device according to the embodiment.
Components that are substantially the same in function and configuration as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
As shown in FIG. 17, the sanitary cleaning device 100a further includes a nozzle lid detection sensor 424. Nozzle lid detection sensor 424 detects that nozzle lid 600 is open. The nozzle lid detection sensor 424 is connected to the control section 405. The nozzle lid detection sensor 424 inputs detection information on whether or not the nozzle lid 600 is opened to the control unit 405.

The nozzle lid detection sensor 424 detects, for example, whether the nozzle lid 600 is in a closed state. Thereby, when the nozzle lid 600 is not in the closed state, it can be detected that the nozzle lid 600 is open. For example, the nozzle lid detection sensor 424 may detect whether or not the nozzle lid 600 is in an open state. In this case, when the open state of the nozzle lid 600 is detected, it can be detected that the nozzle lid 600 is open. For example, a mechanical switch, a magnetic sensor, an optical sensor, or the like is used as the nozzle lid detection sensor 424. The nozzle lid detection sensor 424 may have any configuration capable of detecting that the nozzle lid 600 is open.

FIG. 18 is a flowchart showing a modified example of the operation in the pre-use mode.
As shown in FIG. 18, in this example, when the control unit 405 determines that the opening operation of the toilet seat 200 is not detected, the nozzle lid detection sensor 424 subsequently detects that the nozzle lid 600 is opened. It is determined whether or not (step S504 in FIG. 18). Note that the operations in steps S501 to S503 are substantially the same as the operations in steps S201 to S203 described with reference to FIG. 14, so a detailed explanation will be omitted.

If the control unit 405 determines that the opening of the nozzle lid 600 is detected, it stops the operation of the illumination unit 700, and stops the irradiation of sterilizing light and the emission of visible light VL (step S505 in FIG. 18). . Thereby, the nozzle lid 600 opens and the sterilization light leaking from the opening 481 can be prevented from hitting the user's body.

In this way, in the sanitary cleaning device 100a, the control unit 405 stops the irradiation of the sterilizing light from the illumination unit 700 when the nozzle lid 600 is opened while the sterilizing light is being irradiated. In this case as well, it is possible to prevent the sterilizing light from coming close to the user's body, thereby increasing the safety of the user. Therefore, it is possible to provide the sanitary cleaning device 100a that can safely ensure a longer irradiation time when the nozzle housing section 480 is sterilized with sterilizing light.

In this way, the timing to stop the irradiation of sterilizing light in the pre-use mode may be when it is detected that the user is sitting on the toilet seat 200, or when it is detected that the nozzle lid 600 is opened.

When the irradiation of the sterilizing light is stopped when the user is detected to be sitting on the toilet seat 200, the sterilizing light can be more reliably prevented from approaching the user's body, and safety can be further improved.

On the other hand, the nozzle lid 600 is opened when the user sits on the toilet seat 200 and operates the operating section 500 to advance the nozzle 473. Therefore, when the irradiation of the sterilizing light is stopped when it is detected that the nozzle lid 600 is opened, the irradiation time of the sterilizing light can be made longer than when the irradiation is stopped when the seating is detected.

Furthermore, for example, during cleaning, the nozzle lid 600 may be opened with a finger or the like without sitting on the toilet seat 200. When the nozzle lid detection sensor 424 detects that the nozzle lid 600 is opened, the irradiation of sterilizing light can be stopped even if the nozzle lid 600 is opened by a finger or the like. 600 can also be increased in safety against unintentional opening.

FIG. 19 is a flowchart showing a modification of the operation in the pre-use mode.
As shown in FIG. 19, in this example, when the control unit 405 determines that the opening operation of the toilet seat 200 is not detected, it subsequently determines whether or not the nozzle 473 has been advanced (see FIG. 19). Step S604). More specifically, the control unit 405 operates the nozzle motor 476 based on the operation of the operation unit 500, and determines whether or not the nozzle 473 is advanced. Note that the operations in steps S601 to S603 are substantially the same as the operations in steps S201 to S203 described with reference to FIG. 14, so a detailed explanation will be omitted.

When the control unit 405 determines that the nozzle 473 has been advanced, it stops the operation of the illumination unit 700, and stops the irradiation of the sterilization light and the emission of the visible light VL (step S605 in FIG. 19). In this example, the control unit 405 stops the irradiation of the sterilizing light from the illumination unit 700 when the nozzle 473 is advanced while irradiating the sterilizing light.

The nozzle lid 600 opens when the nozzle 473 is advanced. Therefore, stopping the irradiation of sterilizing light from the illumination section 700 when the nozzle 473 is advanced is essentially the same as stopping the irradiation of the sterilization light from the illumination section 700 when the nozzle lid 600 is opened. It's the same. Therefore, even if the irradiation of sterilizing light from the illumination unit 700 is stopped when the nozzle 473 is advanced, the nozzle lid 600 will open and the sterilizing light leaking from the opening 481 will be directed to the user. It is possible to prevent the object from hitting the person's body.

In other words, the control unit 405 determines that the nozzle lid 600 is opened when the nozzle 473 is advanced. In this way, the opening of the nozzle lid 600 may be detected based on the detection information of the nozzle lid detection sensor 424, or may be detected based on the advancement of the nozzle 473. When detecting the opening of the nozzle lid 600 based on the advance of the nozzle 473, the nozzle lid detection sensor 424 can be omitted. The nozzle lid detection sensor 424 is provided as needed and can be omitted.

As described above, according to the sanitary cleaning devices 100 and 100a according to the present embodiment, the sanitary cleaning device 100 can safely ensure a longer irradiation time when sterilizing the nozzle storage section 480 with sterilizing light. , 100a.

As a sanitary cleaning device based on the embodiment described above, for example, the following aspects can be considered.

A first aspect includes a private parts cleaning nozzle having a water spout for discharging cleansing water toward the user's private parts, a drive device for advancing and retracting the private parts cleaning nozzle, and a state in which the private parts cleaning nozzle is moved back. , a casing having a nozzle accommodating part capable of accommodating the entire private part cleaning nozzle; a toilet seat pivotally supported in the casing so as to be openable and closable; The nozzle lid is in an open state in which the opening is opened when the private part cleaning nozzle is advanced, and in a closed state in which the opening is closed in a state in which the private part cleaning nozzle is entirely stored in the nozzle storage part. a certain nozzle lid, an illumination unit that irradiates the nozzle housing with sterilization light that has a sterilization effect, a human body detection sensor that detects a user located at a position away from the toilet seat; a seating detection sensor that detects seating, and a control unit that controls the illumination unit based on detection information of the human body detection sensor and the seating detection sensor, and the control unit is configured to detect when the human body detection sensor detects the illumination unit is irradiated with the sterilization light when the occupancy detection sensor is in a non-detection state, and when the occupancy detection sensor enters the detection state with the irradiation of the sterilization light or the nozzle lid is opened. The sanitary cleaning device is characterized in that the irradiation of the sterilizing light from the illumination unit is stopped when the sterilization light is removed.

According to this sanitary cleaning device, when the human body detection sensor is in the detection state and the seating detection sensor is in the non-detection state, the illumination section is caused to irradiate the sterilization light. As a result, even if multiple users use the sanitary cleaning device continuously and the time during which no human body is detected is shortened, the disinfection time will be reduced compared to the case where sterilization light is only irradiated when no human body is detected. Bacterial light can be irradiated for a longer period of time. Furthermore, when the seating detection sensor enters a detection state while the sterilization light is being irradiated, or when the nozzle lid is opened, the irradiation of the sterilization light from the illumination unit is stopped. Thereby, it is possible to suppress the user's body from coming close to the nozzle accommodating portion that is being irradiated with the sterilization light, and to improve the safety of the user. Therefore, it is possible to provide a sanitary cleaning device that can safely ensure a longer irradiation time when sterilizing the nozzle housing section with sterilizing light.

In a second aspect, in the first aspect, the control unit may set a pre-use mode in which the illumination unit is irradiated with the sterilization light when the human body detection sensor switches from a non-detection state to a detection state; The sanitary cleaning device executes an after-use mode in which the illumination section is irradiated with the sterilization light when the seating detection sensor switches from a detection state to a non-detection state.

According to this sanitary cleaning device, by irradiating sterilization light both before and after use, multiple users can use the sanitary cleaning device continuously, shortening the time when no human body is detected. Also, sterilizing light can be irradiated for a longer period of time.

In a third aspect based on the second aspect, the control section has a non-use mode in which the illumination section is irradiated with the sterilizing light when the human body detection sensor is in a non-detection state, and when the human body detection sensor is not in use The sanitary cleaning device is characterized in that the operating time of the lighting section in the mode is longer than the operating time of the lighting section in the before-use mode and the operating time of the lighting section in the after-use mode.

According to this sanitary cleaning device, even if it is used infrequently and the irradiation time of sterilizing light in the pre-use mode and after-use mode is short, by executing the non-use mode, the nozzle can be removed from the nozzle housing. It is possible to secure a longer period of time for irradiating bacteria with light.

In a fourth aspect, in any one of the first to third aspects, in the closed state, the nozzle lid and the illumination section are arranged to cover the casing from the opening or the nozzle lid when irradiating the sterilization light. This is a sanitary cleaning device characterized by being able to emit visible light to the outside of the sanitary cleaning device.

According to this sanitary cleaning device, by emitting visible light from the opening or the nozzle lid to the outside of the casing when irradiating the sterilizing light, the inside of the nozzle housing can be illuminated with the sterilizing light without the need for a separate notification means. The user can be made aware that sterilization is being performed, and the user can use the private part cleaning nozzle with greater peace of mind.

In a fifth aspect, in the fourth aspect, the nozzle lid receives the sterilization light irradiated into the nozzle housing, and emits the visible light having a longer wavelength than the sterilization light to the outside of the casing. A sanitary cleaning device characterized in that it includes a wavelength conversion material that emits light.

According to this sanitary cleaning device, the nozzle lid can prevent the sterilization light from directly leaking to the user side, and by including a wavelength conversion material in the nozzle lid, the light leaking to the user side can be suppressed more than the sterilization light. Light with a longer wavelength can be used as safer light.

The embodiments of the present invention have been described above. However, the invention is not limited to these descriptions. Appropriate design changes made by those skilled in the art with respect to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, size, material, arrangement, installation form, etc. of each element included in the sanitary cleaning apparatuses 100, 100a, etc. are not limited to those illustrated, and can be changed as appropriate.
Furthermore, the elements of each of the embodiments described above can be combined to the extent technically possible, and combinations of these are also included within the scope of the present invention as long as they include the features of the present invention.

DESCRIPTION OF SYMBOLS 10 Water supply source, 20 Water guide part, 21 Butt washing channel, 22 Soft washing channel, 23 Bidet washing channel, 24 Surface washing channel, 25 Spraying channel, 100, 100a Sanitary washing device, 200 Toilet seat, 300 Toilet lid, 310 transparent window, 400 casing, 401 power supply circuit, 403 human body detection sensor, 404 seating detection sensor, 405 control unit, 407 exhaust port, 408 discharge port, 409 recessed portion, 420 opening/closing mechanism, 422 toilet seat position detection sensor, 424 nozzle lid detection sensor, 431 electromagnetic valve, 432 pressure regulating valve, 433 check valve, 440 heat exchanger unit, 442 flow rate sensor, 450 electrolytic cell unit, 452 vacuum breaker, 454 pressure modulation section, 471 flow rate adjustment section, 472 flow path switching part, 473 nozzle, 474a bidet cleaning spout, 474b butt cleaning spout, 476 nozzle motor, 478 nozzle cleaning part, 478a water spouting part, 478b support body, 479 spray nozzle, 480 nozzle storage part, 481 opening, 482 nozzle Support part, 500 Operation part, 600 Nozzle lid, 600a Back side, 600b Front side, 700 Lighting part, 710 Light emitting part, 720 Light emitting element, 730 Optical fiber, 800 Toilet bowl, 801 Bowl, VL visible light

Claims (5)

a private parts cleaning nozzle having a spout that discharges cleaning water toward the user's private parts;
a drive device for advancing and retracting the private part cleaning nozzle;
a casing having a nozzle accommodating portion capable of housing the entire private part cleaning nozzle when the private part cleaning nozzle is in a retracted state;
a toilet seat pivotably supported by the casing so as to be freely openable and closable;
The nozzle lid is provided so as to be openable and closable with respect to an opening provided at the front end of the nozzle housing, and when the private part cleaning nozzle is advanced, the opening is in an open state, and the entire private part cleaning nozzle is in an open state. the nozzle lid, which is in a closed state in which the opening is closed when the nozzle lid is stored in the nozzle housing;
an illumination unit that irradiates the nozzle housing with sterilization light that has a sterilization effect;
a human body detection sensor that detects a user located away from the toilet seat;
a seating detection sensor that detects seating on the toilet seat;
a control unit that controls the illumination unit based on detection information from the human body detection sensor and the seating detection sensor;
Equipped with
The control unit causes the lighting unit to irradiate the sterilization light when the human body detection sensor is in a detection state and the occupancy detection sensor is in a non-detection state, and causes the occupancy detection sensor to detect when the sterilization light is irradiated. The sterilization light from the illumination section is stopped when the state is reached or the nozzle lid is opened , and the sterilization light is emitted from the illumination section when the human body detection sensor switches from the non-detection state to the detection state. Executing a before-use mode in which irradiation of germicidal light is started, and an after-use mode in which irradiation of germicidal light is started on the illumination section when the seating detection sensor switches from a detection state to a non-detection state. A sanitary cleaning device featuring: The control unit has a non-use mode that causes the illumination unit to irradiate the sterilization light when the human body detection sensor is in a non-detection state,
2. The operating time of the lighting section in the non-use mode is longer than the operating time of the lighting section in the before-use mode and the operating time of the lighting section in the after-use mode. Sanitary cleaning equipment. The illumination unit irradiates the sterilization light containing a visible light component,
2. The nozzle lid , in the closed state, is capable of emitting visible light to the outside of the casing by transmitting the sterilizing light when irradiating the sterilizing light. The sanitary cleaning device described in . The illumination unit irradiates the sterilization light containing an ultraviolet light component,
The nozzle lid includes a wavelength conversion material that receives the sterilization light irradiated into the nozzle housing and emits visible light with a longer wavelength than the sterilization light to the outside of the casing , and the nozzle lid is in the closed state. The sanitary cleaning device according to claim 1 or 2, wherein the wavelength conversion material is capable of emitting visible light to the outside of the casing during irradiation with the sterilizing light . The illumination unit irradiates the sterilization light containing a visible light component,
The nozzle lid is characterized in that in the closed state, a gap is provided between the nozzle lid and the opening, and in the closed state, visible light can be emitted from the gap to the outside of the casing when the sterilization light is irradiated. The sanitary cleaning device according to claim 1 or 2 .

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