JP2000213038A - Bidet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a hot water passage, to reduce a heat loss, to heat and remove the residual water in a nozzle main body with a heater after washing and to prevent the propagation of bacteria by buidling the instantaneous heating type heater in the private parts washing nozzle main body. SOLUTION: This bidet is provided with a selector valve 45 on a feed water path 44 to be used for anus washing and bidet washing. The feed water path 44 is provided with an instantaneous heating type heater 28 and temperature detectors 27a, 27b in the front and rear of it, and an electronic control device 40 compares the detected water temperature with the set temperature and controls the carrying current of the heater 28. Electromagnetic induction heating by a fluororesin-coated Nichrome wire of a heating coil is used for the heater 28. When private parts washing is completed, the residual water in the feed water path 44 is removed via the heating by the heater 28, the removal of the residual water is confirmed by the rise of the detected temperature, and the heating of the heater 28 is stopped. A passage of the heated hot water is shortened, a heat loss is reduced, the residual water is removed, and the propagation of bacteria can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing device for washing a part of a human body.

[0002]

2. Description of the Related Art Conventionally, a water discharge device including a supply path for supplying water, a water stopping means capable of blocking water flow, and a discharge section for discharging water is used in an environment with poor hygiene. Then, bacteria invaded from the vicinity of the discharge port and tended to be unsanitary.

For example, a sanitary washing apparatus having a local washing function generally has a structure in which warmed washing water is discharged toward a local part by a sanitary washing nozzle. It was observed.

[0004]

In the conventional configuration, water remains at the discharge portion, which promotes the growth of bacteria and facilitates the invasion of bacteria, which is not desirable for sanitation. An object of the present invention is to solve the problems of the related art by suppressing the propagation and invasion of microorganisms such as bacteria on the surface of a discharge unit and in a flow path, and maintaining good hygiene.

[0005]

Means for Solving the Problems and Action / Effect The present invention has been made to achieve the above-mentioned object, and the present invention provides a sanitary washing system comprising a spout for spouting washing water and a water supply passage communicating with the spout. In a local cleaning device having a nozzle, a heat source for heating and sterilizing the sanitary cleaning nozzle is provided. According to this configuration, since the sanitary washing nozzle is provided with a heat source for heat sterilization, the vicinity of the unsanitary discharge port is sterilized by heat and becomes sanitary.

According to a second aspect of the present invention, in the local cleaning apparatus according to the first aspect, hot water is generated from water by the heat source, and the hot water sterilizes and cleans a water supply passage of the sanitary washing nozzle. It is characterized by the following. According to this configuration, the vicinity of the unsanitary discharge port is sterilized by the hot water generated by the heat source and becomes sanitary.

According to a third aspect of the present invention, in the local cleaning apparatus according to the first aspect, the vicinity of the tip of the sanitary washing nozzle is directly heated by the heat source to sterilize the sanitary washing nozzle. I do. According to this configuration, the vicinity of the discharge port, which was unsanitary due to the heat source, is heated and sterilized to be sanitary.

According to a fourth aspect of the present invention, in the local cleaning apparatus according to the first aspect, the heat source heats the vicinity of the tip of the sanitary washing nozzle to remove water remaining in the sanitary washing nozzle. It is characterized by the following. According to this configuration, the water remaining in the cleaning nozzle is removed by the heat source, and the vicinity of the unsanitary discharge port becomes sanitary.

Further, the invention of claim 5 is the invention of claims 1 to 5.
5. The local cleaning device according to claim 4, wherein the sanitary washing nozzle is stored while the heat source is being driven. According to this configuration, while the heat source is operating, the tip of the nozzle is stored, so that burns due to high temperature, hot water, and steam generated from the heat source can be prevented.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a Western style toilet equipped with a local cleaning device. As shown in FIG. 1, the sanitary washing device 10 is mounted on the toilet body 15, and has a casing containing a device for heating washing water, heating a nozzle tip, or blowing hot air, and the like. A main body 11, a nozzle device 12 for discharging cleaning water to a local area, an operation panel 13 for performing operations, and a hot water / nozzle control device 1 for controlling hot water discharge and nozzle positions based on operations of the operation panel 13.
4 (see FIG. 2). In the embodiment, the toilet lid 16 and the toilet seat 17 are also attached to the casing body 11 so as to be openable and closable.

The external water source is a ball surface 15 of the toilet body 15.
Although the piping is connected to a washing water tank (not shown) for storing the washing water flowing to the a, the piping is also connected to the local cleaning device 10 from the branch metal fitting 20 on the way through the connecting pipe 21 as shown in FIG. It is being supplied with water. The sanitary washing device 10 includes, from the upstream side, a flow control unit including a valve unit 26 including a water supply adapter 22, a pressure reducing valve 23, a solenoid valve 24, and a safety valve 25, and a flow control valve 34 driven by a flow control motor 33. And a nozzle device 12 at the tip thereof.
Is connected. The nozzle device 12 includes a driving device 61 for driving the nozzle body 50 in the axial direction.

Next, the nozzle device 12 will be described in detail with reference to FIGS. As shown in FIG. 4, the nozzle device 12 includes a base 51 fixed to a lower portion of the casing body 11 and having a slide surface 52, and a pipe-shaped nozzle body 50 slidably mounted on the slide surface 52 of the base 51. A nozzle head 53 fixed to the tip of the nozzle body 50, a driving device 61 for moving the nozzle body 50 forward and backward, and a nozzle cleaning cover 60 for cleaning the nozzle head 53.

FIG. 5 is a view showing the internal structure of the nozzle body 50. Inside the nozzle, an instantaneous heater 28 for heating the tip of the nozzle to a set temperature, temperature detectors 27a and 27b attached before and after the heater 28, and a switching valve 45 for switching between anal cleaning and bidet cleaning. And are connected by a water supply channel 44. Even if a sheathed heater, a cartridge heater, or the like is selected as the heater, it can be used as a matter of course. However, the most desirable mode is a method in which a heating element having no insulating layer or a heating element having an insulating layer having a small heat capacity on its surface is directly brought into contact with cleaning water and heated. For example, a nichrome wire, a platinum wire, a carbon wire, a ceramic material, carbon or graphite is used as a heater, and this is brought into direct contact with cleaning water, or a thin electrically insulating resin such as Teflon or a fluororesin is applied to these heaters. There is a method of using one coated with. In addition, a heating element having a small heat capacity can be formed by electromagnetic induction heating in which a metal heating element in the water supply path is heated by a heating coil attached outside the water supply path. FIG. 5 shows an example in which a nichrome wire is coated with a fluororesin and used as a heating element.

As shown in FIG. 3, the hot water / nozzle control device 14 is an electronic control device 4 comprising a microcomputer.
The signal is input from the operation panel 13 to the anal cleaning button 13a, the bidet cleaning button 13b, the stop button 13c, and the flow rate adjustment button 13d, and the signal from the seating sensor 37 provided on the toilet seat 17 is input. The input is used to control the electromagnetic valve 24, the flow regulating valve 34, the heater 28, and the like.

The general operation of each unit will be described. When the user sits on the toilet seat 17, a signal to that effect is output from the seating sensor 37, and thereafter, when the user operates the operation panel 13 and instructs, for example, cleaning after toilet use, the driving device 6
1 is driven to integrally advance the nozzle body 50 to the cleaning position, the electromagnetic valve 24 is operated, and the discharge of the cleaning water is started. The flow rate of the washing water is controlled by the flow control valve 34 based on the operation amount of the flow rate adjustment button 13d. When the stop button 13c on the operation panel 13 is turned on to instruct the end of the washing after the end of the washing, the electromagnetic valve 24 closes the water passage to end the spouting of the washing water. 50 is retracted to the storage position. Thereafter, water remaining in the water supply passage 44 is heated and removed by the heater 28 provided at the nozzle tip. When the water remaining in the water supply channel 44 is removed, the temperature detector 27b and the temperature detector 27
When it is sensed that the temperature of a has risen and the remaining water has been removed, the heater 28 is turned off.

The flow of water inside the nozzle body 50 will be described in detail. For example, when the user presses the anal cleaning button 13a.
When the user presses the button to instruct anal cleaning, the switching valve 45 is operated and the water supply path is switched to anal cleaning. Thereafter, the solenoid valve 24 opens to start water flow. The temperature of the washing water can be adjusted using the temperature control button 1
It is controlled by controlling the power supplied to an instantaneous heater (not shown) based on the operation amount of 3e.
The water temperature is detected by the temperature detector 27a or the temperature detector 27b, and the supplied power is corrected by comparing the detected temperature with the set temperature. Further, a temperature massage cleaning mode can be selected according to the user's preference.
The user can arbitrarily set the center temperature, the temperature change width, and the cycle of the temperature change or select from several types of modes by using the cleaning mode selection button 13f. In this cleaning mode, the temperature of the water discharged is arbitrarily changed according to the center temperature set by the user, the temperature change width, and the cycle of the temperature change, so as to obtain a massage effect and a bowel movement promoting effect.

As described above, the heating means is provided near the tip of the nozzle, and since the distance between the heating means and the water outlet is very short, heat loss in the water supply passage is small, and the water supply passage is effectively provided. Heats and removes residual water and prevents bacterial growth.
Sterilize with hot water. As the heater wire, for example, a nichrome wire coated with a fluorine resin or the like is used, so that the heat conductivity is good and efficient heating can be performed. If this heater is used, since the heat capacity of the heater itself is small, the temperature can be raised immediately, and control with a quick response can be performed. Further, a material such as graphite, carbon, ceramics, or the like, such as PTC, in which the electric resistance characteristic of the heater suddenly increases with temperature near a predetermined temperature.
When a thermistor is used, the heater itself has a self-temperature control action, so that safety can be improved. The temperature at which the temperature resistance of the material greatly changes is called the Curie point, and can be changed depending on the composition of the material.

FIG. 6 shows another embodiment of the heating means. The heating means of the present invention includes an insulating pipe 70 forming a water supply passage, a heating coil 71 wound around the pipe 70 and supplied with high-frequency power, and an electromagnetic induction provided in the pipe 70 by the heating coil 71. And a metal heating element 72 that generates heat. According to this configuration, since the heating element 72 directly contacts the cleaning water without touching the outside, efficient heating with little heat loss is possible. In addition, by using a thin metal such as stainless steel for the heating element 72, heating with a small heat capacity and very responsiveness is possible. Further, since the total surface area of the metal becomes the heat transfer area, the surface temperature of the heating element 72 can be reduced with a compact configuration. Furthermore, even if the heating element 72 is touched, there is no fear of electric shock, and it is safe.

[Brief description of the drawings]

FIG. 1 is an external view of a sanitary washing device showing one embodiment of the present invention.

FIG. 2 is a block diagram illustrating a waterway system of the sanitary washing device according to the embodiment.

FIG. 3 is a block diagram illustrating an electronic control unit of the sanitary washing device and input / output devices thereof according to the embodiment.

FIG. 4 is a side view showing the nozzle device 12 partially broken away.

FIG. 5 is a cross-sectional view of the nozzle body according to the first embodiment of the present invention.

FIG. 6 is a sectional view of another heating means according to the first embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Sanitary washing | cleaning device 11 ... Casing main body 12 ... Nozzle device 13 ... Operation panel 13a ... Anal washing button 13b ... Bidet washing button 13c ... Stop button 13d ... Flow rate adjusting button 13e ... Temperature adjusting button 13f ... Washing mode selection button 14 ... hot water / nozzle control device 15 ... toilet body 15a ... ball surface 16 ... toilet lid 17 ... toilet seat 20 ... branch fitting 21 ... connecting pipe 22 ... water supply adapter 23 ... pressure reducing valve 24 ... solenoid valve 25 ... safety valve 26 ... valve unit 27 ... Temperature detector 27a Temperature detector (heater inlet) 27b Temperature detector (heater outlet) 28 Heater 33 Flow regulating motor 34 Flow regulating valve 35 Flow regulating unit 37 Seating sensor 40 Electronic control unit 44 Water supply channel 45 ... Switching valve 46 ... Motor for switching valve 50 ... Nozzle body 51 ... Base 52 ... Slide surface 53 ... Nozzle Head 60 nozzle cleaning cover 61 driving device 70 pipe 71 heating coil 72 heating element

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D038 JA05 JB04 JB05 JF04 JH03 JH16 KA03 KA14 4C058 AA07 BB03 CC03 CC07 DD02 DD04 DD13 DD16 EE30 4C094 AA08 AA09 BC12 DD12 DD14 EE17 EE20 EE40 FF02 GG07

Claims (5)

[Claims] 1. A local cleaning device having a sanitary washing nozzle having a water outlet for discharging washing water and a water supply passage communicating with the water outlet, wherein the sanitary washing nozzle is provided with a heat source for heat sterilization. A local cleaning device. 2. The local cleaning apparatus according to claim 1, wherein hot water is generated from water by the heat source, and the hot water sterilizes and cleans a water supply passage of the sanitary washing nozzle. 3. The local cleaning apparatus according to claim 1, wherein the heat source directly heats the vicinity of the tip of the sanitary washing nozzle to sterilize the sanitary washing nozzle. 4. The local cleaning apparatus according to claim 1, wherein the heat source heats the vicinity of the tip of the sanitary washing nozzle to remove water remaining in the sanitary washing nozzle. 5. The sanitary washing nozzle is stored while the heat source is being driven.
5. The local washing device according to 4.