JP4347585B2 - Sanitary washing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sanitary washing device for washing a local part of a human body.
[0002]
[Prior art]
Various functions have been devised in the sanitary washing device for washing the local part of the human body in order to ensure the sanitary condition of the sanitary washing device itself. For example, a function of further cleaning a cleaning nozzle that cleans a local part of the human body (hereinafter referred to as a human body cleaning nozzle).
[0003]
According to the function of cleaning the human body cleaning nozzle, the dirt adhering to the human body cleaning nozzle itself is cleaned by cleaning the local part of the human body. Thereby, the user can wash | clean a local part with the washing water ejected from a clean human body washing nozzle.
[0004]
By the way, since the human body washing nozzle is generally provided inside the casing of the sanitary washing device, the user knows that the human body washing nozzle is actually washed or that the human body washing nozzle is actually being washed. However, even when the human body washing nozzle was washed, it was not possible to obtain a sufficient sense of security that the human body washing nozzle was kept clean.
[0005]
On the other hand, there is a sanitary washing device that cleans the washing water ejection end of the nozzle device for local washing, and notifies the user of the cleaning process (see Patent Document 1).
[0006]
In this case, when the nozzle device is cleaned, the fact is displayed on the liquid crystal screen or a sound is output from the speaker, so that the user can recognize that the nozzle device is being cleaned.
[0007]
[Patent Document 1]
Japanese Patent No. 2795359
[0008]
[Problems to be solved by the invention]
However, the sanitary washing device described above requires a liquid crystal screen and a speaker for notifying the user of the cleaning of the nozzle device, and has a complicated configuration. In addition, the user can recognize that the nozzle device is being cleaned, but cannot recognize how the cleaning is being performed.
[0009]
The objective of this invention is providing the sanitary washing apparatus which can give a user a sufficient sense of security, ensuring the sanitary state of a human body washing nozzle apparatus with simple structure.
[0010]
[Means for Solving the Problems]
In order to solve the conventional problems, a sanitary washing device according to the present invention is a sanitary washing device that jets cleaning water supplied from a water supply source to a human body, and a human body washing nozzle device that jets washing water to the human body, By spouting steam People A nozzle cleaning device for cleaning the body cleaning nozzle device; A sound generating means for generating a sound caused by the steam ejected from the nozzle cleaning device, and the sound generating means generates a sound that changes with time Is.
[0011]
In the sanitary washing device according to the present invention, the wash water supplied from the water supply source by the human body washing nozzle device is ejected to the human body. Further, the human body cleaning nozzle device is cleaned by ejecting steam from the nozzle cleaning device. And Sound generation means As a result, the vapor ejected from the nozzle cleaning device is made visible or audible.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a sanitary washing device that jets wash water supplied from a water supply source to a human body, and a human body washing nozzle device that jets wash water to the human body, and human body washing by jetting steam A nozzle cleaning device for cleaning the nozzle device; A sound generating means for generating a sound caused by the steam ejected from the nozzle cleaning device, and the sound generating means generates a sound that changes with time Is.
[0013]
In the sanitary washing device according to the present invention, the wash water supplied from the water supply source by the human body washing nozzle device is ejected to the human body. Further, the human body cleaning nozzle device is cleaned by ejecting steam from the nozzle cleaning device. And Sound generation means Vapor ejected from the nozzle cleaning device is visualized visually or audibly So the user can easily recognize the generation of steam by listening to the sound changing over time .
[0014]
Thus, since the human body washing nozzle device is washed by the steam, the dirt adhering to the human body washing nozzle device is easily removed and a sterilization effect is obtained.
[0015]
Further, the user can easily recognize that the cleaning operation at a high temperature continues. As a result, the user accidentally touches the high-temperature steam, accidentally touches the high-temperature human body washing nozzle device, and accidentally ejects the washing water from the high-temperature human body washing nozzle device while the high-temperature washing operation is continued. Is prevented. Therefore, the human body washing nozzle device can be kept clean while ensuring safety with a simple configuration.
[0024]
Claim 2 The invention described in A sanitary cleaning device that ejects cleaning water supplied from a water supply source to a human body, a human body cleaning nozzle device that ejects cleaning water to the human body, and a nozzle cleaning device that cleans the human body cleaning nozzle device by ejecting steam And a sound generating means for generating a sound caused by the steam ejected from the nozzle cleaning device, and the sound generating means generates a substantially constant sound. Is. In this case, the user can easily recognize the generation of steam without feeling uncomfortable by listening to a substantially constant sound in time.
[0025]
The invention according to claim 3 is the claim 1 or 2 In the configuration of the sanitary washing device described in the above, the nozzle washing device includes a steam generating means for generating steam, and the sound generating means ejects the steam generated by the steam generating means and generates a jet sound of the steam. An ejection hole forming member that forms holes is included.
[0026]
In this case, the steam is generated by the steam generating means, the steam generated by the ejection hole formed by the ejection hole forming member is ejected, and a steam ejection sound is generated.
[0027]
Thereby, the user can recognize the ejection of the vapor | steam from a nozzle cleaning apparatus by the ejection sound of a vapor | steam, without using an alerting | reporting means. In addition, since no notification means for notifying the generation of steam is required, the configuration is easy.
[0028]
Claim 4 The invention described in claim 3 In the configuration of the sanitary washing apparatus described in (1), the steam generating means includes a heating element, a power supply means for supplying power to the heating element, and a conduit through which cleaning water heated by the heating element flows.
[0029]
In this case, electric power is supplied to the heating element by the power supply means, and the washing water heated by the heating element flows through the conduit.
[0030]
As a result, when the cleaning water in the pipe is heated, pressure fluctuations occur in the pipe, and the pressure, flow rate, and flow velocity of the cleaning water or steam ejected from the nozzle cleaning device change. When steam is ejected from the nozzle cleaning device, the sound generated by the steam fluctuates over time. As a result, the user can easily recognize the generation of steam by listening to the sound that varies with time.
[0031]
Claim 5 The invention described in claim 4 In the configuration of the sanitary washing apparatus described in (1), the steam generating means further includes power control means for changing the power supplied to the heating element over time.
[0032]
In this case, the power supplied to the heating element by the power control means is changed over time. Thereby, since the expansion rate of the cleaning water heated by the heating element changes, the pressure, flow rate, and flow rate of the cleaning water or steam ejected from the nozzle cleaning device change with time. Therefore, the user can easily recognize the generation of steam by listening to the sound that changes over time.
[0033]
In addition, since the power supplied to the heating element can be easily adjusted by the power control means, the user can easily obtain a sound according to his / her preference.
[0034]
Claim 6 The invention described in claim 4 In the structure of the sanitary washing apparatus described in 1), a pressure fluctuation buffering means provided downstream of the steam generating means and having a cross-sectional area larger than the cross-sectional area of the pipe line is included.
[0035]
In this case, the pressure, flow rate, and flow rate of the cleaning water that fluctuate in time in the pipe are buffered by the pressure fluctuation buffer means provided downstream of the steam generation means. Therefore, the pressure, flow rate, and flow velocity of the steam ejected from the nozzle cleaning device are substantially constant, and the sound generated by the steam is kept substantially constant. As a result, the user can easily recognize the generation of steam without feeling uncomfortable by listening to a substantially constant sound.
[0036]
Claim 7 The invention described in claim 3-6 In the configuration of the sanitary washing device according to any one of the above, the sound generation means further includes a flow rate control means for controlling the flow rate of the cleaning water supplied to the steam generation means.
[0037]
In this case, the flow rate of the cleaning water supplied to the steam generation unit is controlled by the flow rate control unit. Thereby, the pressure, flow rate, and flow rate of the cleaning water or steam ejected from the nozzle cleaning device are controlled. The sound generated by the steam ejected from the nozzle cleaning device varies depending on the flow velocity and flow rate. Therefore, the user can easily obtain the sound according to his / her preference and easily recognize the generation of steam by controlling the flow rate of the washing water supplied to the steam generating means by the flow rate controlling means. Can do.
[0038]
The invention according to claim 8 is the invention according to claim 7 In the configuration of the sanitary washing device described in 1), the flow rate control means changes the flow rate of the washing water supplied to the nozzle washing device over time.
[0039]
In this case, the flow rate of the cleaning water supplied to the nozzle cleaning device by the flow rate control means is changed over time. As a result, the pressure, flow rate, and flow rate of the cleaning water or steam ejected from the nozzle cleaning device change over time. Therefore, the user can easily recognize the generation of steam by listening to the sound that changes over time. In addition, since the power supplied to the heating element can be easily adjusted by the power control means, the user can easily obtain a sound according to his / her preference.
[0040]
【Example】
Hereinafter, a sanitary purification apparatus according to an embodiment of the present invention will be described with reference to FIGS.
[0041]
FIG. 1 is a perspective view showing a state in which a sanitary washing device according to an embodiment of the present invention is mounted on a toilet. As shown in FIG. 1, the sanitary washing device 100 is mounted on the toilet bowl 600. The tank 700 is connected to a water pipe and supplies cleaning water into the toilet 600.
[0042]
The sanitary washing device 100 includes a main body 200, a remote operation device 300, a toilet seat 400 and a lid 500.
[0043]
A toilet seat 400 and a lid 500 are attached to the main body 200 so as to be freely opened and closed. Further, the main body 200 is provided with a cleaning water supply mechanism including the nozzle unit 30 and a seating sensor 51, and a control unit is incorporated. The seating sensor 51 detects the presence or absence of a user on the toilet seat 400 using infrared rays.
[0044]
The control unit of the main body 200 controls the cleaning water supply mechanism based on a signal from the seating sensor 51 and a signal transmitted by a remote operation device 300 described later. Further, the control unit of the main body 200 includes a heater (not shown) built in the toilet seat 400, a deodorizing device (not shown) provided in the main body 200, a hot air supply device (not shown), and the like. Also controls.
[0045]
FIG. 2 is a schematic plan view showing an example of the remote control device of FIG. The remote operation device 300 includes a display panel 301, an adjustment switch 302, a butt switch 303, a stop switch 305, a bidet switch 306, a drying switch 307, and a nozzle cleaning switch 309.
[0046]
The user presses down the adjustment switch 302, the butt switch 303, the stop switch 305, the bidet switch 306, the drying switch 307, and the nozzle cleaning switch 309. Thereby, the remote control device 300 wirelessly transmits a predetermined signal to a control unit provided in the main body 200 of the sanitary washing device 100 described later. The control unit of the main body unit 200 receives a predetermined signal wirelessly transmitted from the remote operation device 300, and controls the washing water supply mechanism and the like.
[0047]
For example, when the user presses down the butt switch 303 or the bidet switch 306, the nozzle part 30 of the main body part 200 in FIG. 1 moves and the washing water is ejected. By depressing the stop switch 305, the ejection of the washing water from the nozzle unit 30 is stopped.
[0048]
In addition, by pressing the nozzle cleaning switch 309, a posterior nozzle and a bidet nozzle, which will be described later, are cleaned (hereinafter referred to as nozzle cleaning). Details of the nozzle cleaning operation will be described later. By depressing the drying switch 307, hot air is jetted from a hot air supply device (not shown) of the sanitary washing device 100 to a local part of the human body.
[0049]
The adjustment switch 302 includes water force adjustment switches 302a and 302b. When the user depresses the water pressure adjustment switches 302a and 302b, the pressure of the cleaning water ejected from the nozzle unit 30 changes. Moreover, the bar graph-like lighting display of the display panel 301 changes with the pressing operation of the water flow adjustment switches 302a and 302b.
[0050]
Hereinafter, the main body 200 of the sanitary washing device 100 according to an embodiment of the present invention will be described. FIG. 3 is a schematic diagram showing the configuration of the main body 200 of the sanitary washing device 100 according to one embodiment of the present invention.
[0051]
3 includes a control unit 4, a branch tap 5, a strainer 6, a check valve 7, a constant flow valve 8, a water stop solenoid valve 9, a flow sensor 10, a heat exchanger 11, a temperature sensor 12a, 12b and 12c, the seating sensor 51, the pump 13, the switching valve 14, the instantaneous heating device 33, and the nozzle part 30 are included. The nozzle unit 30 includes a buttocks nozzle 1, a bidet nozzle 2, and a nozzle cleaning nozzle 3. The instantaneous heating device 33 includes a thermistor 33a, a thermistor 33b, and a thermal fuse (not shown).
[0052]
As shown in FIG. 3, the branch tap 5 is inserted in the water pipe 201. A strainer 6, a check valve 7, a constant flow valve 8, a water stop electromagnetic valve 9, a flow sensor 10, and a temperature sensor 12 a are sequentially connected to the pipe 202 connected between the branch tap 5 and the heat exchanger 11. It is inserted. Further, a temperature sensor 12 b and a pump 13 are inserted in a pipe 203 connected between the heat exchanger 11 and the switching valve 14.
[0053]
First, purified water flowing through the water pipe 201 is supplied to the strainer 6 by the branch tap 5 as cleaning water. The strainer 6 removes dust and impurities contained in the cleaning water. Next, the check valve 7 prevents the backflow of the cleaning water in the pipe 202. And the flow volume of the washing water which flows through the piping 202 by the constant flow valve 8 is maintained constant.
[0054]
A relief pipe 204 is connected between the pump 13 and the switching valve 14, and a relief water pipe 205 is connected between the water stop solenoid valve 9 and the flow sensor 10. A relief valve 206 is inserted in the relief pipe 204. The relief valve 206 is opened when the pressure in the pipe 203, particularly on the downstream side of the pump 13, exceeds a predetermined value, and prevents problems such as damage to the equipment and disconnection of the hose at the time of abnormality.
[0055]
On the other hand, of the cleaning water supplied with the flow rate adjusted by the constant flow valve 8, the cleaning water not sucked by the pump 13 is released and discharged from the water pipe 205. Thereby, a predetermined back pressure acts on the pump 13 without being influenced by the water supply pressure.
[0056]
Next, the flow rate sensor 10 measures the flow rate of the cleaning water flowing in the pipe 202 and gives the measured flow rate value to the control unit 4. Further, the temperature sensor 12 a measures the temperature of the cleaning water flowing in the pipe 202 and gives a temperature measurement value to the control unit 4.
[0057]
Subsequently, the heat exchanger 11 heats the cleaning water supplied through the pipe 202 to a predetermined temperature based on the control signal given by the control unit 4. The temperature sensor 12 b measures the temperature of the cleaning water heated to a predetermined temperature by the heat exchanger 11 and gives a temperature measurement value to the control unit 4.
[0058]
The pump 13 pumps the wash water heated by the heat exchanger 11 to the switching valve 14 based on a control signal given by the control unit 4. The switching valve 14 supplies cleaning water to any one of the butt nozzle 1, the bidet nozzle 2, and the instantaneous heating device 33 based on a control signal given by the control unit 4.
[0059]
When the cleaning water is supplied to the butt nozzle 1 or the bidet nozzle 2 of the nozzle unit 30, the cleaning water is ejected from the butt nozzle 1 or the bidet nozzle 2. On the other hand, when the cleaning water is supplied to the instantaneous heating device 33, the cleaning water is heated by the instantaneous heating device 33, and the heated cleaning water or steam generated by the heating is supplied to the nozzle cleaning nozzle 3.
[0060]
Hereinafter, the cleaning water heated by the instantaneous heating device 33 is referred to as nozzle cleaning high temperature water, and the steam generated by the heating of the instantaneous heating device 33 is referred to as nozzle cleaning steam.
[0061]
High temperature water for nozzle cleaning or steam for nozzle cleaning is ejected from the nozzle cleaning nozzle 3 to the buttocks nozzle 1 or bidet nozzle 2. In the instantaneous heating device 33, the thermistor 33a, the thermostat 33b, and the temperature fuse prevent overheating of the cleaning water.
[0062]
A temperature sensor 12 c is attached to the nozzle cleaning nozzle 3. The temperature sensor 12 c measures the temperature of the nozzle cleaning high-temperature water or the nozzle cleaning steam and gives a temperature measurement value to the control unit 4. Thereby, the control part 4 prevents overheating of the instantaneous heating device 33 and the high temperature water for nozzle cleaning or the steam for nozzle cleaning.
[0063]
The flow rate of the cleaning water ejected from the butt nozzle 1 and the bidet nozzle 2 and the flow rates of the high temperature water for nozzle cleaning and the steam for nozzle cleaning ejected from the nozzle cleaning nozzle 3 are adjusted by the switching valve 14.
[0064]
The control unit 4 is based on a signal transmitted wirelessly from the remote control device 300 of FIG. 1, a measured flow rate value given from the flow rate sensor 10, and a temperature measurement value given from the temperature sensors 12a, 12b, 12c, Control signals are given to the heat exchanger 11, the pump 13, the switching valve 14 and the instantaneous heating device 33.
[0065]
4A is a longitudinal sectional view of the switching valve 14, FIG. 4B is a sectional view taken along the line AA of the switching valve 14 of FIG. 4A, and FIG. FIG. 4A is a sectional view taken along line B-B of the switching valve 14 in FIG. 4A, and FIG. 4D is a sectional view taken along line C-C of the switching valve 14 in FIG.
[0066]
The switching valve 14 shown in FIG. 4 includes a motor 141, an inner cylinder 142, and an outer cylinder 143.
[0067]
An inner cylinder 142 is inserted into the outer cylinder 143, and a rotation shaft of the motor 141 is attached to the inner cylinder 142. The motor 141 performs a rotation operation based on a control signal given by the control unit 4. As the motor 141 rotates, the inner cylinder 142 rotates.
[0068]
As shown in FIGS. 4A, 4B, 4C, and 4D, a washing water inlet 143a is provided at one end of the outer cylinder 143, and the washing water outlet 143b, 143c is provided, a cleaning water outlet 143d is provided at a position different from the side cleaning water outlets 143b, 143c, and a cleaning water outlet 143e is provided at a position different from the side cleaning water outlets 143b, 143c, 143d. . Holes 142e, 142f, 142g are provided at different positions of the inner cylinder 142. As shown in FIGS. 4B and 4C, chamfered portions formed by curves and straight lines are formed around the holes 142e and 142f, and around the hole 142g, as shown in FIG. 4D. Thus, the chamfered part comprised by a straight line is formed.
[0069]
By rotation of the inner cylinder 142, the hole 142e can face the cleaning water outlet 143b or 143c of the outer cylinder 143, the hole 142f can face the cleaning water outlet 143d of the outer cylinder 143, and the hole 142g The outer cylinder 143 can face the cleaning water outlet 143e.
[0070]
The pipe 203 of FIG. 3 is connected to the cleaning water inlet 143a, the bidet nozzle 2 is connected to the cleaning water outlet 143b, and the first flow path of the butt nozzle 1 is connected to the cleaning water outlet 143c. The second flow path of the buttocks nozzle is connected to the water outlet 143d, and the nozzle cleaning nozzle 3 is connected to the cleaning water outlet 143e.
[0071]
FIG. 5 is a cross-sectional view showing the operation of the switching valve 14 of FIG.
FIGS. 5A to 5F show states where the motor 141 of the switching valve 14 is rotated by 0 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees and 270 degrees, respectively.
[0072]
First, as shown in FIG. 5A, when the motor 141 is not rotated (0 degree), the chamfered portion around the hole 142 e of the inner cylinder 142 faces the cleaning water outlet 143 b of the outer cylinder 143. Accordingly, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143b as indicated by the arrow W1.
[0073]
Next, as shown in FIG. 5B, when the motor 141 rotates the inner cylinder 142 by 90 degrees, the chamfered portion around the hole 142 g of the inner cylinder 142 becomes the cleaning water outlet 143 e of the outer cylinder 143. opposite. Accordingly, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143e as indicated by an arrow W2.
[0074]
Next, as shown in FIG. 5 (c), when the motor 141 rotates the inner cylinder 142 by 135 degrees, a part of the chamfered portion around the hole 142 g of the inner cylinder 142 is a washing water outlet of the outer cylinder 143. While facing 143e, a part of the chamfered portion around the hole 142e of the inner cylinder 142 faces the washing water outlet 143c of the outer cylinder 143. Accordingly, a small amount of washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlets 143c and 143e as indicated by arrows W2 and W3.
[0075]
Next, as shown in FIG. 5D, when the motor 141 rotates the inner cylinder 142 by 180 degrees, the chamfered portion around the hole 142 e of the inner cylinder 142 becomes the cleaning water outlet 143 c of the outer cylinder 143. opposite. Accordingly, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143c as indicated by an arrow W3.
[0076]
Next, as shown in FIG. 5E, when the motor 141 rotates the inner cylinder 142 by 225 degrees, a part of the chamfered portion around the hole 142e of the inner cylinder 142 is washed water of the outer cylinder 143. While facing the outlet 143 c, a part of the chamfered portion around the hole 142 f of the inner cylinder 142 faces the cleaning water outlet 143 d of the outer cylinder 143. Accordingly, a small amount of cleaning water passes through the inner cylinder 142 from the cleaning water inlet 143a and flows out from the cleaning water outlets 143c and 143d as indicated by arrows W3 and W4.
[0077]
Further, as shown in FIG. 5 (f), when the motor 141 rotates the inner cylinder 142 by 270 degrees, the chamfered portion around the hole 142 f of the inner cylinder 142 faces the cleaning water outlet 143 d of the outer cylinder 143. To do. Accordingly, the washing water passes through the inside of the inner cylinder 142 from the washing water inlet 143a and flows out from the washing water outlet 143d as indicated by an arrow W4.
[0078]
As described above, when the motor 141 rotates based on the control signal from the control unit 4, any of the holes 142e, 142f, 142g of the inner cylinder 142 faces the cleaning water outlets 143b to 143e of the outer cylinder 143, The washing water that has flowed in from the washing water inlet 143a flows out from any of the washing water outlets 143b to 143e.
[0079]
FIG. 6 shows the flow rate of the cleaning water flowing out from the cleaning water outlets 143c and 143d of the switching valve 14 in FIG. 5, the flow rate of the cleaning water flowing out from the cleaning water outlet 143b into the bidet nozzle 2, and the nozzle cleaning from the cleaning water outlet 143e. It is a figure which shows the flow volume of the washing water which flows out to the nozzle 3 for an operation.
[0080]
The horizontal axis in FIG. 6 indicates the rotation angle of the motor 141, and the vertical axis indicates the flow rate of the cleaning water flowing out from the cleaning water outlets 143b to 143e. Further, a solid line Q1 indicates a change in the flow rate of the wash water flowing out from the wash water outlet 143c to the buttocks nozzle 1, a dashed-dotted line Q2 indicates a change in the flow rate of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1, A dotted line Q3 indicates a change in the flow rate of the cleaning water flowing out from the cleaning water outlet 143b to the bidet nozzle 2, and a broken line Q4 indicates the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 via the instantaneous heating device 33. Indicates the change in flow rate.
[0081]
For example, as shown in FIG. 6, when the motor 141 does not rotate (0 degree), the flow rate Q3 of the wash water flowing out from the wash water outlet 143b to the bidet nozzle 2 shows the maximum value. As the rotation angle of the motor 141 increases, the flow rate Q3 of the cleaning water flowing out from the cleaning water outlet 143b to the bidet nozzle 2 decreases, and the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 increases. To do.
[0082]
Next, when the motor 141 rotates 90 degrees, the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 shows the maximum value. As the rotation angle of the motor 141 is further increased, the flow rate Q4 of the cleaning water flowing out from the cleaning water outlet 143e to the nozzle cleaning nozzle 3 is decreased, and the flow rate Q1 of the cleaning water flowing out from the cleaning water outlet 143c to the buttocks nozzle 1 Will increase.
[0083]
Subsequently, when the motor 141 rotates 180 degrees, the flow rate Q1 of the cleaning water flowing out from the cleaning water outlet 143c to the buttocks nozzle 1 shows a maximum value. Then, as the rotation angle of the motor 141 is further increased, the flow rate Q1 of the wash water flowing out from the wash water outlet 143c to the buttocks nozzle 1 is decreased, and the flow rate Q2 of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1 is increased. To do.
[0084]
Furthermore, when the motor 141 rotates 270 degrees, the flow rate Q2 of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1 shows a maximum value. Then, as the rotation angle of the motor 141 is further increased, the flow rate Q2 of the wash water flowing out from the wash water outlet 143d to the buttocks nozzle 1 is decreased, and the flow rate Q3 of the wash water flowing out from the wash water outlet 143b to the bidet nozzle 2 is increased. .
[0085]
As described above, the controller 4 can control the flow rate of the cleaning water flowing out from the cleaning water outlets 143b to 143e by controlling the rotation angle of the motor 141 of the switching valve 14. Further, regardless of the rotation angle of the motor 141 of the switching valve 14, any one of the cleaning water outlets 142e, 142f, 142g or a chamfered portion (concave portion) around them faces any of the cleaning water outlets 143b to 143e. Therefore, the flow path of the wash water is not blocked, and the wash water supplied from the wash water inlet 143a flows out from any of the wash water outlets 143b to 143e.
[0086]
FIG. 7 is a partially cutaway sectional view showing the structure of the instantaneous heating device 33. In FIG. 7, the instantaneous heating device 33 includes a casing 504, a sheathed heater 505, a heat conductor 506, a pipe 510, a thermistor 33a, a thermostat 33b, and a thermal fuse 33c.
[0087]
The casing 504 has a substantially rectangular parallelepiped shape. In the casing 504, a pipe 510 and a sheathed heater 505 are provided with a predetermined interval so as to extend in the longitudinal direction, and both end portions of the casing 504 protrude from the both end surfaces to the outside.
[0088]
In the casing 504, the pipe 510 and the sheathed heater 505 are covered with a heat conductor 506. The sheathed heater 505 has a built-in heating wire and generates heat when electric power is supplied.
[0089]
During the nozzle cleaning described above, the cleaning water supplied from the cleaning water outlet 143e of the switching valve 14 in FIG. 4 is introduced into the pipe 510 from the water supply port 511.
[0090]
When electric power is supplied to the sheathed heater 505, heat generated by the sheathed heater 505 is transmitted to the pipe 510 through the heat conductor 506. As a result, the cleaning water introduced into the pipe 510 is heated, and the high temperature water for nozzle cleaning or the steam for nozzle cleaning is discharged from the discharge port 512.
[0091]
Here, in FIG. 7, when the water supply port 511 side of the pipe 510 is the upstream side of the instantaneous heating device 33 and the discharge port 512 side is the downstream side of the instantaneous heating device 33, the thermistor 33 a and the thermostat 33 b are downstream of the instantaneous heating device 33. On the side. Further, the thermal fuse 33 c is provided on the side surface of the casing 504.
[0092]
In this embodiment, the thermistor 33a, the thermostat 33b, and the thermal fuse 33c have different operation reference temperatures. Thereby, adjustment of overheating prevention of three steps can be performed. Furthermore, even if any one of the thermistor 33a, the thermostat 33b, and the thermal fuse 33c fails, overheating is prevented by the remaining two.
[0093]
The thermistor 33 a is attached to the sheathed heater 505 and detects the temperature of the sheathed heater 505. The control unit 4 determines the temperature of the sheathed heater 505 supplied from the thermistor 33a, and performs control so as to lower the temperature of the sheathed heater 505 when it is in an overheated state.
[0094]
The thermostat 33b is attached so that the temperature of the washing water flowing through the pipe 510 can be detected. When the temperature of the cleaning water flowing through the pipe 510 exceeds the operation reference temperature of the thermostat 33b, the thermostat 33b operates to cut off the power supply of the sheathed heater 505.
[0095]
Finally, the thermal fuse 33c is tightly fixed to the casing 504. When the temperature of the casing 504 exceeds the operation reference temperature of the thermal fuse 33c, the supply of electric power to the sheathed heater 505 is interrupted by blowing the thermal fuse 33c.
[0096]
The above-described functions of the thermistor 33a, thermostat 33b, and thermal fuse 33c prevent overheating of cleaning water by the sheathed heater 505 and overheating of the sheathed heater 505 itself.
[0097]
In the instantaneous heating device 33 according to the present embodiment, the sheathed heater 505 is used as a heating means for cleaning water, but not limited to this, a mica heater, a ceramic heater, a print heater, or the like may be used.
[0098]
Further, each of the thermistor 33a, the thermostat 33b, and the thermal fuse 33c prevents overheating of the instantaneous heating device 33. By connecting the thermistor 33a or the thermostat 33b to the control unit 4, the control unit 4 causes the thermistor 33a or the thermostat to be connected. The temperature of the sheathed heater 505 may be feedback controlled or fed forward controlled based on the temperature measurement value 33b.
[0099]
FIG. 8 is an external perspective view showing a part of the nozzle unit 30. In FIG. 8, the bottom nozzle 1 and the bidet nozzle 2 having a cylindrical shape are provided in parallel so as to be adjacent to each other, and the nozzle cleaning nozzle 3 is attached so as to cover the upper ends of the nozzles 1 and the bidet nozzle 2. .
[0100]
A tube 3 t is connected to the rear end of the nozzle cleaning nozzle 3, and the tube 3 t is connected to the discharge port 512 of the instantaneous heating device 33. Thereby, high temperature water for nozzle cleaning or steam for nozzle cleaning is supplied from the instantaneous heating device 33 to the nozzle 3 for nozzle cleaning through the tube 3t.
[0101]
FIG. 9 is a schematic cross-sectional view of the nozzle portion when cleaning water is ejected from the buttocks nozzle toward the surface to be cleaned of the human body, and FIG. 10 is a nozzle cleaning high temperature water or nozzle cleaning steam from the nozzle cleaning nozzle. It is a typical sectional view of a nozzle part in case water is ejected.
[0102]
9 and 10, the whole or part of the nozzle part 30 is accommodated in the casing of the main body part 200.
[0103]
Hereinafter, the cleaning of the local part of the human body by the butt nozzle 1 is referred to as a butt cleaning.
The buttocks nozzle 1 includes a piston 20, a cylinder 21 and a spring 23. A washing water inlet 24a is provided at the rear end surface of the cylinder 21, and a washing water inlet 24b is provided at the side portion. A first flow path 20 a and a second flow path 20 b are formed inside the piston 20, and an ejection hole 25 is provided on the upper surface of the tip of the piston 20.
[0104]
Washing water is supplied from the washing water inlet 24b of the cylinder 21 at the start of the buttocks washing. As a result, as shown in FIG. 9, the piston 20 provided in the cylinder 21 protrudes outside the casing of the main body 200 against the elastic force of the spring 23.
[0105]
Thereafter, cleaning water is supplied from the cleaning water inlets 24 a and 24 b of the cylinder 21. Thus, the cleaning water supplied from the cleaning water inlet 24a is introduced into the first flow path 20a of the piston 20 and is ejected from the ejection hole 25 while being given a rotational force. Further, the cleaning water supplied from the cleaning water inlet 24 b is introduced into the second flow path 20 b of the piston 20 and is ejected from the ejection hole 25.
[0106]
In this way, since rotational force is applied to the cleaning water sent from the first flow path 20a to the ejection hole 25, the cleaning water ejected from the ejection hole 25 toward the surface to be cleaned has a spreading angle. . Washing ejected from the ejection hole 25 by adjusting the ratio of the flow rate of the cleaning water in the first flow path 20a and the flow rate of the cleaning water in the second flow path 20b using the switching valve 14 described above. The spread angle of water can be adjusted.
[0107]
At the end of the buttocks cleaning, the supply of cleaning water to the cleaning water inlets 24a and 24b of the cylinder 21 is stopped. Accordingly, as shown in FIG. 10, the piston 20 is accommodated in the cylinder 21 by the elastic force of the spring 23. In this case, the piston 20 is held in the cylinder 21 by the elastic force of the spring 23 and thus does not protrude from the main body 200.
[0108]
A cleaning water inlet 24c is provided on the rear end surface of the nozzle cleaning nozzle 3, and the nozzle cleaning is performed on the lower surface of the front end of the nozzle cleaning nozzle 3 so as to face the ejection hole 25 of the buttocks nozzle 1 and the ejection hole of the bidet nozzle 2. A hole 24d is provided. Inside the nozzle cleaning nozzle 3, there is formed a flow path 24e that communicates the cleaning water inlet 24c and the nozzle cleaning hole 24d. As described above, the washing water inlet 24c is connected to the outlet 512 of the instantaneous heating device 33 via the tube 3t (FIG. 8).
[0109]
At the time of nozzle cleaning, nozzle cleaning high temperature water or nozzle cleaning steam is supplied from the instantaneous heating device 33 to the cleaning water inlet 24c of the nozzle cleaning nozzle 3. As a result, as shown in FIG. 10, the nozzle cleaning high-temperature water or nozzle cleaning steam is ejected from the nozzle cleaning hole 24d through the flow path 24e in the direction of the arrow J1.
[0110]
The nozzle cleaning high-temperature water or nozzle cleaning steam ejected from the nozzle cleaning hole 24d of the nozzle cleaning nozzle 3 is ejected around the ejection hole 25 of the buttocks nozzle 1 and the ejection hole of the bidet nozzle 2. Thereby, the dirt adhering to the periphery of the ejection hole 25 of the nozzle 1 or the ejection hole of the bidet nozzle 2 is peeled off by the high temperature water for nozzle cleaning or the steam for nozzle cleaning, and flows into the toilet 600. As a result, sterilization and cleaning of the periphery of the ejection hole 25 of the butt nozzle 1 and the ejection hole of the bidet nozzle 2 are performed.
[0111]
FIG. 11 is a schematic plan view showing a state in which the lid of the sanitary washing device of FIG. 1 is opened. As shown in FIG. 11, when the lid 500 of the sanitary washing device 100 is opened, the user can visually recognize the main body 200, the toilet seat 400, and the toilet bowl 600. Here, a part of the casing 200a of the main body 200 that covers the nozzle part 30 is referred to as a nozzle cover 200S.
[0112]
At the time of nozzle cleaning, the entire nozzle portion 30 in FIG. 3 is accommodated in the nozzle cover 200S as shown in FIG. Therefore, the user cannot visually recognize the nozzle part 30 at the time of nozzle cleaning.
[0113]
FIG. 12 is a schematic diagram illustrating an example of a configuration that allows a user to visually recognize steam generated during nozzle cleaning. FIG. 12A shows a schematic cross section of the nozzle unit 30 and the nozzle cover 200S, and FIG. 12B shows an external appearance when the sanitary washing device 100 is viewed from above during nozzle washing.
[0114]
As shown in FIG. 12 (a), a space 210 is formed between the nozzle part 30 and the nozzle cover 200S, and between the tip of the nozzle part 30 and the lower end of the nozzle cover 200S, the outside (inside the toilet 600). A space 211 that connects the space 210 and the space 210 is formed.
[0115]
During the nozzle cleaning, the nozzle cleaning steam ejected from the nozzle cleaning hole 24d of the nozzle portion 30 flows in the direction of the arrow Q.
[0116]
The nozzle cleaning steam flows into the space 210 and fills the space 210. Thereby, when the vapor pressure (steam amount) in the space 210 exceeds the saturated vapor pressure (saturated steam amount), the nozzle cleaning steam becomes steam ST. In addition, the temperature in the space 210 slightly increases. As a result, the vapor pressure of the nozzle cleaning vapor that flows out of the space 210 through the gap 211 is higher than the external saturated vapor pressure, and the nozzle cleaning vapor becomes steam ST.
[0117]
Here, the steam ST is visually manifested by changing a part of the steam into small droplets (liquid) in an environment exceeding the saturated steam pressure.
[0118]
As shown in FIG. 12B, the user can visually recognize the steam ST discharged from the nozzle cover 200 </ b> S by opening the lid portion 500.
[0119]
Thus, in the sanitary washing apparatus 100 according to the present embodiment, the nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 at the time of nozzle cleaning by the nozzle cleaning steam is visually manifested as the steam ST. The user can easily recognize that the high temperature cleaning operation continues. As a result, the user accidentally touches the high temperature nozzle cleaning steam, accidentally touches the high temperature butt nozzle 1 and the bidet nozzle 2 and the high temperature butt nozzle 1 during the high temperature nozzle cleaning operation. Further, it is possible to prevent the cleaning water from being ejected from the bidet nozzle 2.
[0120]
Therefore, the buttocks nozzle 1 and the bidet nozzle 2 can be kept clean while ensuring safety with a simple configuration. Further, the user visually recognizes the nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 as steam, so that the user recognizes the sterilization and cleaning operation of the nozzle unit 30 due to the generation of the nozzle cleaning steam. be able to. Thereby, the user can obtain a sense of security that the nozzle unit 30 is sanitary.
[0121]
Further, since the user recognizes the ejection of the nozzle cleaning steam from the nozzle cleaning nozzle 3 by the generation of the steam ST, the notification means for notifying the generation of the nozzle cleaning steam is not required, and the configuration is easy. .
[0122]
On the other hand, the sanitary washing device 100 according to the present embodiment may have the following configuration in order to make the user recognize the nozzle washing operation at a high temperature by the nozzle washing steam.
[0123]
FIG. 13 is a schematic diagram illustrating another example of a configuration that allows a user to visually recognize steam generated during nozzle cleaning.
[0124]
In the configuration of FIG. 13, a transparent nozzle cover 200 t made of a transparent material is provided instead of the nozzle cover 200 </ b> S of FIG. 12, and a part of the casing of the toilet seat 400 is formed of a transparent material. A part of the casing of the toilet seat 400 is referred to as a transparent casing 400t.
[0125]
Here, the transparent nozzle cover 200t and the transparent casing 400t have such a transmittance that the steam and the fog generated by the steam described later can be visually recognized from the outside.
[0126]
FIG. 13A shows a schematic cross section of the nozzle portion 30 and the transparent nozzle cover 200t, and FIG. 13B shows an external appearance when the sanitary washing device 100 is viewed from above during nozzle washing.
[0127]
As shown in FIG. 13A, a space 210 is formed between the nozzle part 30 and the transparent nozzle cover 200t, and an external (toilet bowl 600) is provided between the tip of the nozzle part 30 and the lower end of the transparent nozzle cover 200t. A space 211 that communicates between the space 210 and the space 210 is formed.
[0128]
During the nozzle cleaning, the nozzle cleaning steam ejected from the nozzle cleaning hole 24d of the nozzle portion 30 flows in the direction of the arrow Q.
[0129]
The nozzle cleaning steam flows into the space 210 and fills the space 210. Accordingly, when the vapor pressure in the space 210 exceeds the saturated vapor pressure, the nozzle cleaning vapor becomes steam ST. Moreover, when the vapor pressure in the space 210 exceeds the saturated vapor pressure, the inner surface of the transparent nozzle cover 200t forming the space 210 is clouded.
[0130]
As described above, the steam ST is visually manifested by changing a part of the steam into small water droplets in an environment exceeding the saturated steam pressure. Further, the cloudiness of the transparent nozzle cover 200t is a part of the water vapor that is visually manifested by the attachment of a part of the water vapor that has been formed into water droplets to the inner surface of the transparent nozzle cover 200t.
[0131]
As shown in FIG. 13B, the user visually recognizes the steam ST filled in the space 210 and the fog generated on the inner surface of the transparent nozzle cover 200t through the transparent nozzle cover 200t by opening the lid portion 500. Can do.
[0132]
In addition, as shown in FIG. 13B, in this example, since a part of the casing of the toilet seat 400 is formed by the transparent casing 400t, the user can enter the steam ST that fills the space 210 of FIG. Further, the fog generated on the inner surface of the transparent nozzle cover 200t can be visually recognized in a wider range.
[0133]
As described above, during nozzle cleaning, the user can visually recognize the nozzle cleaning vapor visually manifested as steam ST and fogging of the transparent nozzle cover 200t through the transparent casing 400t and the transparent nozzle cover 200t. it can. Therefore, it is possible to easily recognize the sterilization and cleaning operation of the nozzle unit 30 due to the generation of the nozzle cleaning vapor. Thereby, the user can obtain a sense of security that the nozzle part 3 is hygienic.
[0134]
The sanitary washing device 100 according to the present embodiment generates a sound during nozzle washing with nozzle washing steam. Hereinafter, the sound generated from the nozzle unit 30 during nozzle cleaning is referred to as steam sound.
[0135]
Steam sound is generated based on aerodynamic principles. Sound generated based on aerodynamic principles is generally called aerodynamic sound. Examples of the aerodynamic sound include a sound generated by an electric wire in the wind and a jet noise generated by a jet flow of a jet engine.
[0136]
Aerodynamic sound is generated when sound waves are excited by pressure fluctuations in the air and the excited sound waves propagate through the air. The pressure fluctuation in the air is generated by a Karman vortex or jet turbulence generated downstream of a cylinder placed in the fluid air and turbulent flow generated between the surrounding air and the like. Therefore, the magnitude of the aerodynamic sound depends on the pressure fluctuation state generated in the air. The magnitude of the aerodynamic sound depends not only on the pressure fluctuation, but also on the vorticity, which is an amount representing the strength of local rotation of a minute portion of the fluid.
[0137]
For example, the pressure fluctuation in the air based on the Karman vortex changes according to the velocity of the fluid (air) forming the Karman vortex, and increases as the velocity increases. As a result, the aerodynamic sound increases as the fluid velocity increases.
[0138]
The steam sound according to the present embodiment depends on the flow rate of the nozzle cleaning steam ejected from the nozzle cleaning hole 24d.
[0139]
For example, when about 0.25 l / s of cleaning water is supplied to the above-described instantaneous heating device 33, the flow rate of the unheated cleaning water passing through the flow path 24e having an inner diameter of about 3.0 mm is 0.15 m / s. Then, the flow rate at which the nozzle cleaning steam at 100 ° C. passes through the flow path 24e is about 247 m / s. The nozzle cleaning steam having such a high flow velocity is ejected from the nozzle cleaning hole 24d, thereby generating a steam sound (aerodynamic sound).
[0140]
When a certain amount of washing water is sent to the instantaneous heating device 33, the temperature of the nozzle washing steam generated by heating rises, and the volume of the fluid (washing water) expands. As a result, the flow rate of the nozzle cleaning steam passing through the flow path 24e is larger than that of unheated cleaning water. Further, the volume of the nozzle cleaning steam changes depending on the temperature to be heated, and the volume of the nozzle cleaning steam expands as the temperature increases. Therefore, the steam noise increases as the temperature of the nozzle cleaning steam increases.
[0141]
In the sanitary washing device 100 according to the present embodiment, the flow rate of the nozzle cleaning vapor passing through the flow path 24e is set to about 10 in order to realize a volume that can be recognized by human hearing and a volume that does not make people uncomfortable. It is preferable to be within a range of ˜300 m / s.
[0142]
In the above description, it is assumed that the volume of the steam sound changes depending on the nozzle cleaning steam. However, the generation of the steam sound includes the structure of the nozzle cleaning nozzle 3, vibration and resonance elements. It is preferable to adjust the generation state of the steam noise.
[0143]
As described above, in the sanitary washing device 100 according to the present embodiment, the nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 at the time of nozzle cleaning with the nozzle cleaning steam is audibly manifested as a sound. A person can easily recognize that the cleaning operation at a high temperature continues. As a result, the user accidentally touches the high temperature nozzle cleaning steam, accidentally touches the high temperature butt nozzle 1 and the bidet nozzle 2 and the high temperature butt nozzle 1 during the high temperature nozzle cleaning operation. Further, it is possible to prevent the cleaning water from being ejected from the bidet nozzle 2.
[0144]
Therefore, the buttocks nozzle 1 and the bidet nozzle 2 can be kept clean while ensuring safety with a simple configuration. In addition, since the nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 is audibly manifested as sound, the user recognizes the sterilization and cleaning operation of the nozzle unit 30 due to the generation of the nozzle cleaning steam. be able to. Thereby, the user can obtain a sense of security that the nozzle unit 30 is sanitary.
[0145]
Further, since the user recognizes the ejection of the nozzle cleaning steam from the nozzle cleaning nozzle 3 by the steam sound, no notification means for notifying the generation of the nozzle cleaning steam is not required, and the configuration is simple.
[0146]
FIG. 14 is an explanatory diagram for explaining an example of a discharge mode of the cleaning water discharged from the instantaneous heating device of FIG.
[0147]
As shown in FIG. 14A, cleaning water is supplied to the water supply port 511 of the pipe 510 at a predetermined pressure Pc at the start of nozzle cleaning. Here, when the sheathed heater 505 of the instantaneous heating device 33 does not generate heat, the wash water introduced into the pipe 510 from the water supply port 511 is discharged from the discharge port 512 at a predetermined pressure Pc.
[0148]
As shown in FIG. 14B, when the sheathed heater 505 of the instantaneous heating device 33 generates heat, the cleaning water in the pipe 510 is heated from the heat receiving part of the pipe 510 (the contact part between the pipe 510 and the heat conductor 506). Receive. Then, the wash water that has received the heat instantaneously expands upstream and downstream (in the direction of arrow F) around the heat receiving portion of the pipe 510. Thereby, the pressure of the washing water in the pipe 510 increases.
[0149]
Thereafter, cleaning water is ejected from the nozzle cleaning nozzle 3 by the increased pressure in the pipe 510. Thereby, the pressure in the piping 510 decreases. By repeating these operations, the pressure, flow rate, and flow rate of the cleaning water ejected from the nozzle cleaning nozzle 3 periodically vary.
[0150]
In order to increase the pressure fluctuation of the cleaning water in the pipe 510, it is desirable to reduce the diameter of the pipe 510 as much as possible.
[0151]
FIG. 14 (c) shows the pressure fluctuation of the cleaning water discharged from the discharge port 512. The horizontal axis indicates time, and the vertical axis indicates pressure. According to FIG.14 (c), the pressure of the washing water discharged | emitted from the discharge port 512 is fluctuate | varied centering on the pressure Po higher than the pressure Pc.
[0152]
In this case, the pressure, flow rate, and flow velocity of the cleaning water ejected from the nozzle cleaning nozzle 3 periodically change, so that the steam sound generated when the nozzle cleaning steam is ejected from the nozzle cleaning nozzle 3 is generated. It fluctuates periodically.
[0153]
Therefore, the user can easily recognize the generation of the nozzle cleaning steam by listening to the periodically changing steam sound. In addition, it is possible to recognize the sterilization and cleaning operation of the nozzle unit 30 during the nozzle cleaning with the nozzle cleaning steam, and the user accidentally converts the nozzle cleaning steam into the high temperature nozzle cleaning steam while the nozzle cleaning operation is continued at a high temperature. Touching, accidentally touching the hot butt nozzle 1 and the bidet nozzle 2, and accidental jetting of washing water from the hot butt nozzle 1 and bidet nozzle 2 are prevented.
[0154]
On the other hand, the sanitary washing device 100 according to the present embodiment may have the following configuration in order for the user to recognize the state of nozzle washing with steam sound without periodic fluctuations.
[0155]
FIG. 15 is an explanatory diagram for explaining another example of the discharge mode of the cleaning water discharged from the instantaneous heating device of FIG.
[0156]
The sanitary washing device 100 according to this embodiment shown in FIG. 15A is provided with a pressure buffering part 520 on the downstream side of the pipe 510.
[0157]
As shown in FIG. 15A, cleaning water is supplied to the water supply port 511 of the pipe 510 at a predetermined pressure Pc at the start of nozzle cleaning. Therefore, when the sheathed heater 505 of the instantaneous heating device 33 generates heat, the cleaning water in the pipe 510 receives heat H from the heat receiving part of the pipe 510 (the contact part between the pipe 510 and the heat conductor 506). Then, the wash water that has received the heat instantaneously expands upstream and downstream (in the direction of arrow F) around the heat receiving portion of the pipe 510. Thereby, the pressure of the washing water in the pipe 510 increases.
[0158]
Thereafter, the washing water is discharged from the discharge port 512 into the pressure buffer 520 due to the increased pressure in the pipe 510.
[0159]
Thereby, the pressure in the piping 510 decreases. By repeating these operations, the pressure, flow rate, and flow rate of the cleaning water discharged from the discharge port 512 into the pressure buffering unit 520 periodically change.
[0160]
However, in the pressure buffer unit 520 having a predetermined volume, the pressure fluctuation and flow rate fluctuation of the washing water are buffered, so that the washing water discharged from the discharge port 521 of the pressure buffer unit 520 has a periodic fluctuation. Not constant pressure and constant flow rate.
[0161]
FIG. 15B shows the pressure fluctuation of the cleaning water discharged from the discharge port 521. The horizontal axis indicates time, and the vertical axis indicates pressure. According to FIG.15 (b), the pressure of the washing water discharged | emitted from the discharge port 512 is constant with the pressure Po higher than the pressure Pc.
[0162]
In this case, the pressure, flow rate, and flow rate of the cleaning water ejected from the nozzle cleaning nozzle 3 of the nozzle unit 30 are kept constant. Thereby, the steam sound generated when the nozzle cleaning steam is ejected from the nozzle cleaning nozzle 3 is always constant.
[0163]
Therefore, the user can easily recognize the generation of the nozzle cleaning steam without feeling uncomfortable by listening to the steam sound without periodic fluctuations.
[0164]
FIG. 16 is a graph showing the temperature change of the cleaning water ejected from the nozzle cleaning nozzle of FIG. 10 during nozzle cleaning. In FIG. 16, the horizontal axis indicates time, and the vertical axis indicates temperature. A change in temperature of the cleaning water ejected from the nozzle cleaning nozzle 3 is shown by a curve J.
[0165]
In this example, the flow rate of cleaning water supplied to the instantaneous heating device 33 of FIG. 7 via the switching valve 14 of FIG. 4 during nozzle cleaning is constant, and the power supplied to the instantaneous heating device 33 is constant. And
[0166]
When the user depresses the nozzle cleaning switch 309 of the remote control device 300 in FIG. 2, cleaning water is sent to the instantaneous heating device 33 via the switching valve 14 and nozzle cleaning is started. As a result, cleaning water having a predetermined time J1 and room temperature C1 is ejected from the nozzle cleaning nozzle 3 of the nozzle portion 30.
[0167]
After a predetermined time has elapsed, electric power is supplied to the instantaneous heating device 33. Accordingly, the cleaning water is heated to become high-temperature water for nozzle cleaning (period J2). Thereafter, the cleaning water becomes the nozzle cleaning steam by exceeding the boiling point C2 (period J3).
[0168]
Then, when the user presses down the stop switch 305 of the remote control device 300 in FIG. 2, the power supplied to the instantaneous heating device 33 is cut off. As a result, the temperature of the cleaning water flowing through the instantaneous heating device 33 decreases, and the cleaning water becomes high-temperature water for nozzle cleaning again (period J4) and returns to room temperature C1 (period J5).
[0169]
Finally, the supply of cleaning water to the instantaneous heating device 33 is shut off by the switching valve 14, and the nozzle cleaning is completed.
[0170]
As described above, the sanitary washing device 100 according to the present embodiment generates a steam sound during the period J3. Thereby, the user can recognize the sterilization and cleaning operation of the nozzle unit 30 at the time of nozzle cleaning by the nozzle cleaning steam. Therefore, during the high temperature nozzle cleaning operation, the user accidentally touches the high temperature nozzle cleaning steam, accidentally touches the high temperature butt nozzle 1 and the bidet nozzle 2, and accidentally touches the high temperature butt nozzle 1 and It is possible to prevent the cleaning water from being ejected from the bidet nozzle 2.
[0171]
Further, when the cleaning water sprayed from the nozzle cleaning nozzle 3 during nozzle cleaning changes in order of normal temperature cleaning water, nozzle cleaning high temperature water, nozzle cleaning steam, nozzle cleaning high temperature water, and normal temperature cleaning water, the nozzle 1 The dirt adhering to the periphery of the nozzle hole 25 or the nozzle hole of the bidet nozzle 2 is peeled off by the nozzle cleaning high-temperature water or nozzle cleaning steam, and flows into the toilet 600. Therefore, sterilization and washing around the ejection hole 25 of the buttocks nozzle 1 and the ejection hole of the bidet nozzle 2 are performed reliably.
[0172]
In the example of FIG. 16, the flow rate of the cleaning water supplied to the instantaneous heating device 33 of FIG. 7 through the switching valve 14 at the time of nozzle cleaning is assumed to be constant, but is supplied to the instantaneous heating device 33 by the switching valve 14. The flow rate of the cleaning water may be changed. In the following description, it is assumed that the pressure heating unit 520 of FIG.
[0173]
In this case, the temperature rise state of the cleaning water heated by the instantaneous heating device 33 can be changed by adjusting the switching valve 14. Accordingly, when the temperature of the nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 changes, the steam sound changes according to the temperature of the nozzle cleaning steam. Therefore, the steam sound is adjusted according to the user's preference.
[0174]
In addition, when the flow rate of the cleaning water supplied to the instantaneous heating device 33 by the switching valve 14 is changed over time, the nozzle cleaning high temperature water and the nozzle cleaning steam sprayed from the nozzle cleaning nozzle 3 are changed over time. Can be varied. When the ejection form of the nozzle cleaning steam changes with time, the steam sound changes with time. In this case, the user can easily recognize the generation of the nozzle cleaning steam by listening to the time-varying steam sound.
[0175]
The adjustment of the supply amount of the washing water to the instantaneous heating device 33 by the switching valve 14 is performed by the control unit 4, so that the steam sound is easily adjusted by the electrical control of the control unit 4. Thereby, the user can easily obtain the steam sound according to his / her preference.
[0176]
Further, in the example of FIG. 16, the power supplied to the instantaneous heating device 33 of FIG. 7 at the time of nozzle cleaning is assumed to be constant, but even if the power supplied to the instantaneous heating device 33 is changed by the control unit 4. Good. In the following description, it is assumed that the pressure heating unit 520 of FIG.
[0177]
In this case, the discharge mode of the cleaning water discharged from the instantaneous heating device 33 can be changed by adjusting the electric power supplied to the instantaneous heating device 33. Thereby, when the temperature of the nozzle cleaning steam ejected from the nozzle cleaning nozzle portion 3 changes, the flow rate and flow rate of the cleaning water discharged from the instantaneous heating device 33 change according to the temperature of the nozzle cleaning steam, Steam sound changes. This occurs because the change in the expansion rate of the wash water depends on the temperature. In this way, the steam sound is adjusted according to the user's preference.
[0178]
Moreover, when the electric power supplied to the instantaneous heating device 33 is varied with time, the ejection form of the nozzle cleaning high-temperature water and nozzle cleaning steam ejected from the nozzle cleaning nozzle 3 can be varied with time. it can. When the ejection form of the nozzle cleaning steam changes with time, the steam sound changes with time. In this case, the user can easily recognize the generation of the nozzle cleaning steam by listening to the time-varying steam sound.
[0179]
As described above, the adjustment of the electric power supplied to the instantaneous heating device 33 is performed by the control unit 4, so that the steam sound is easily adjusted by the electric control of the control unit 4. Thereby, the user can easily obtain the steam sound according to his / her preference.
[0180]
In the sanitary washing apparatus according to the present embodiment, the buttocks nozzle 1 and the bidet nozzle 2 correspond to a human body washing nozzle apparatus, and the nozzle washing nozzle 3 corresponds to the nozzle washing apparatus. Win The
[0181]
The nozzle cleaning nozzle 3 corresponds to sound generation means, the steam sound corresponds to sound and steam ejection sound, the instantaneous heating device 33 corresponds to steam generation means, and the nozzle cleaning steam corresponds to steam.
[0182]
Further, the sheathed heater 505 and the heat conductor 506 correspond to a heating element, the control unit 4 corresponds to a power supply unit and a power control unit, the nozzle cleaning nozzle 3 corresponds to an ejection hole forming member, and the nozzle cleaning hole 24d. Corresponds to the ejection hole, the pipe 510 corresponds to the pipe line, the pressure buffer 520 corresponds to the pressure fluctuation buffer means, and the switching valve 14 corresponds to the flow rate control means.
[0183]
【The invention's effect】
In the sanitary washing device according to the present invention, the wash water supplied from the water supply source by the human body washing nozzle device is ejected to the human body. Further, the human body cleaning nozzle device is cleaned by ejecting steam from the nozzle cleaning device. And the vapor | steam ejected from a nozzle cleaning apparatus is visualized visually or audibly by the revealing means.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a sanitary washing device according to an embodiment of the present invention is mounted on a toilet.
FIG. 2 is a schematic plan view showing an example of the remote control device of FIG.
FIG. 3 is a schematic diagram showing a configuration of a main body of a sanitary washing device according to an embodiment of the present invention.
4A is a longitudinal sectional view of the switching valve, FIG. 4B is a sectional view taken along line AA of the switching valve of FIG. 4A, and FIG. 4C is a sectional view taken along line BB of the switching valve of FIG. , (D) is a sectional view taken along line CC of the switching valve of (a).
FIG. 5 is a cross-sectional view showing the operation of the switching valve in FIG.
6 shows the flow rate of cleaning water flowing out from the cleaning water outlet of the switching valve of FIG. 5 to the butt nozzle, the flow rate of cleaning water flowing out of the cleaning water outlet to the bidet nozzle, and the cleaning water flowing out of the cleaning water outlet to the nozzle cleaning nozzle. Of flow rate
FIG. 7 is a partially cutaway sectional view showing the structure of the instantaneous heating device 33
FIG. 8 is an external perspective view showing a part of the nozzle portion.
FIG. 9 is a schematic cross-sectional view of the nozzle portion when cleaning water is ejected from the buttocks nozzle toward the surface to be cleaned of the human body.
FIG. 10 is a schematic cross-sectional view of a nozzle portion when nozzle cleaning high-temperature water or nozzle cleaning steam is ejected from a nozzle cleaning nozzle.
11 is a schematic plan view showing a state in which the lid portion of the sanitary washing device of FIG. 1 is opened.
FIG. 12 is a schematic diagram showing an example of a configuration for allowing a user to visually recognize steam generated during nozzle cleaning.
FIG. 13 is a schematic diagram showing another example of a configuration for allowing a user to visually recognize steam generated during nozzle cleaning.
FIG. 14 is an explanatory diagram for explaining an example of a discharge mode of cleaning water discharged from the instantaneous heating device of FIG.
15 is an explanatory diagram for explaining another example of a discharge mode of cleaning water discharged from the instantaneous heating device of FIG.
16 is a graph showing the temperature change of cleaning water ejected from the nozzle cleaning nozzle of FIG. 10 during nozzle cleaning.
[Explanation of symbols]
1 Wet nozzle
2 Bide nozzle
3 Nozzle cleaning nozzle
4 Control unit
14 Switching valve
33 Instantaneous heating device
200a casing
200S nozzle cover
200t transparent nozzle cover
211 gap
505 Seeds heater
506 Thermal conductor
510 piping
520 Pressure buffer

Claims (8)

A sanitary washing device that jets wash water supplied from a water supply source to a human body,
A human body washing nozzle device for ejecting the washing water to the human body;
A nozzle cleaning device for cleaning the human body cleaning nozzle device by jetting steam;
A sound generating means for generating a sound caused by steam ejected from the nozzle cleaning device,
The sanitary washing apparatus, wherein the sound generating means generates a sound that changes with time. A sanitary washing device that jets wash water supplied from a water supply source to a human body,
A human body washing nozzle device for ejecting the washing water to the human body;
A nozzle cleaning device for cleaning the human body cleaning nozzle device by jetting steam;
A sound generating means for generating a sound caused by steam ejected from the nozzle cleaning device,
It said sound generating means, you characterized by generating a substantially constant sound sanitary washing device. The nozzle cleaning device includes steam generating means for generating steam,
The sound generating means is
The sanitary washing apparatus according to claim 1 or 2, further comprising an ejection hole forming member that ejects the steam generated by the steam generation means and forms an ejection hole that generates an ejection sound of the steam. The steam generating means includes
A heating element;
Power supply means for supplying power to the heating element;
The sanitary washing apparatus according to claim 3, further comprising a conduit through which washing water heated by the heating element flows. The steam generating means includes
5. The sanitary washing device according to claim 4, further comprising power control means for temporally changing the power supplied to the heating element.   5. The sanitary washing apparatus according to claim 4, further comprising a pressure fluctuation buffer unit provided downstream of the steam generating unit and having a cross-sectional area larger than the cross-sectional area of the pipe line. The sound generating means is
The sanitary washing apparatus according to any one of claims 3 to 6, further comprising a flow rate control unit that controls a flow rate of the cleaning water supplied to the steam generation unit.   The sanitary washing apparatus according to claim 7, wherein the flow rate control means changes the flow rate of the washing water supplied to the nozzle washing apparatus with time.

Images