JP6655775B2 - Sanitary washing equipment - Google Patents

Description

  The present invention relates to a sanitary washing device for washing a local part of a human body.

  Conventionally, in this type of sanitary washing device, a washing nozzle is protruded from a storage position to a butt washing or bidet washing position, and washing water is ejected from an outlet of the washing nozzle to wash a local part of a human body.

  There has been proposed a sanitary washing apparatus provided with a nozzle washing configuration for washing dirt from the washing nozzle (for example, see Patent Document 1).

Japanese Patent No. 3555254

  However, in the configuration of the conventional sanitary washing device, the washing water for washing the dirt of the washing nozzle is washing with water or hot water from a heat exchanger. In the case of such a configuration, the remaining dirt may adhere and accumulate unless a person brushes regularly, and the configuration for preventing the dirt on the cleaning nozzle is not sufficiently satisfactory. There is still room for improvement from the viewpoint of preventing nozzle contamination.

  An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a sanitary washing device capable of forming a washing bubble on the surface of a washing nozzle and suppressing the adhesion of dirt.

In order to solve the above-mentioned conventional problems, a sanitary washing device of the present invention includes a heat exchanger for heating washing water, a washing nozzle for washing a human body, a washing nozzle drive unit for driving the washing nozzle forward and backward, and a washing unit. A foam generating unit that generates foam, a spray nozzle that discharges wash water or wash foam to the inner surface of the toilet, a spray amount variable unit that changes a flow rate of the wash water to be sent to the wash nozzle and the spray nozzle, and the spray nozzle A spray nozzle driving unit that rotationally drives the direction of the discharge port, an on-off valve that opens and closes a water path to the spray nozzle, a control unit that controls these operations, and an operation unit that sets and instructs the control unit. wherein the control unit, at the time of nozzle cleaning washing water or cleaning foam is ejected from the spray nozzle to the surface of the washing nozzle, the spray nozzle driving unit, the discharge port of the spray nozzle toward the washing nozzle While being driven reciprocally rotated around a position facing the one in which reciprocally driven forward and backward to the cleaning nozzle by the cleaning nozzle driving unit.
Further, the sanitary washing device of the present invention includes a heat exchanger for heating washing water, a washing nozzle for washing a human body, a washing nozzle driving unit for driving the washing nozzle forward and backward, and a foam generating unit for generating washing foam. A spray nozzle for discharging washing water or cleaning foam on the inner surface of the toilet bowl, a water discharge amount variable means for changing a flow rate of the washing water to be sent to the washing nozzle and the spray nozzle, and a driving direction of a discharge port of the spray nozzle. Spray nozzle drive unit, and an on-off valve for opening and closing a water path to the spray nozzle,
A control unit for controlling these operations; and an operation unit for setting and instructing the control unit, wherein the control unit performs nozzle cleaning in which cleaning water or cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle. In some cases, the spray nozzle is reciprocatingly driven by the spray nozzle driving unit in a state where the spray nozzle is stopped at a position where the wash nozzle has advanced to a position near the human body washing position.

  Thereby, the direction of the discharge port of the spray nozzle rotated by the spray nozzle drive unit is directed to the direction of the cleaning nozzle, and the cleaning foam generated in the foam generation unit is discharged from the spray nozzle to the surface of the cleaning nozzle, and the cleaning is performed. It is possible to provide a sanitary washing device capable of suppressing the adhesion of dirt on the washing nozzle by bubbles.

  ADVANTAGE OF THE INVENTION The sanitary washing apparatus of this invention can form a washing bubble on the surface of a washing nozzle, and can suppress adhesion of dirt.

The perspective view in the state where the sanitary washing device in an embodiment of the invention was installed in a toilet. Perspective view of the sanitary washing device with the front body case removed. Perspective view of the sanitary washing device with the front main body case and control unit removed. The perspective view which shows the operation part upper surface of the same sanitary washing device. Perspective view showing the appearance of the remote controller Schematic diagram showing the configuration of the water circuit of the washing means of the sanitary washing device A perspective view showing a disassembled state of a water circuit of the sanitary washing device. A perspective view showing an assembled state of a water circuit of the sanitary washing device. Perspective view showing the appearance of the sub tank Sectional view of the front view of the sub tank Sectional view of the side view of the sub tank Perspective view showing the appearance of the heat exchanger Cross section of heat exchanger The perspective view which shows the external appearance of the water pump which is a water discharge amount variable means. Sectional view of a water pump as a water discharge amount variable means The perspective view which shows the external appearance of the storage state of a nozzle apparatus. AA sectional view shown in FIG. Vertical sectional view of the storage state of the nozzle device Detailed sectional view of the part B shown in FIG. CC sectional view shown in FIG. Cross-sectional view of the storage state of the nozzle device Detailed sectional view of the part C shown in FIG. Longitudinal cross-sectional view showing the ass cleaning state of the nozzle device Detailed cross-sectional view of the D part shown in FIG. Vertical sectional view showing the bidet cleaning state of the nozzle device Detailed sectional view of the part E shown in FIG. Cross-sectional view showing the bidet cleaning state of the nozzle device FIG. 27 is a detailed sectional view of a portion G shown in FIG. Time chart of cleaning means at the time of initial use of the sanitary washing device Time chart of cleaning means during normal use of the sanitary washing device A perspective view showing the appearance of the spray nozzle. Vertical sectional view of the spray nozzle Plan view showing the installation position of the spray nozzle and the rotation angle of the discharge port of the spray nozzle in the sanitary washing device A chart showing the pump output and the rotation speed of the spray nozzle drive unit at the rotation angle of the discharge port of the spray nozzle. Perspective view showing a state of cleaning nozzle cleaning by the spray nozzle. Perspective view showing a state of cleaning nozzle cleaning by the spray nozzle. Perspective view showing a state of cleaning nozzle cleaning by the spray nozzle.

A sanitary washing device according to a first aspect of the present invention includes a heat exchanger for heating washing water, a washing nozzle for washing a human body, a washing nozzle driving unit for driving the washing nozzle forward and backward, and a foam generation unit for generating washing foam. A spray nozzle for discharging washing water or cleaning foam on the inner surface of the toilet bowl, a water discharge amount variable means for changing a flow rate of the washing water to be sent to the washing nozzle and the spray nozzle, and a driving direction of a discharge port of the spray nozzle. A spray nozzle driving unit, an on-off valve for opening and closing a water path to the spray nozzle, a control unit for controlling these operations, and an operation unit for instructing and setting the control unit, wherein the control unit includes: At the time of nozzle cleaning in which cleaning water or cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle, the spray nozzle driving unit reciprocates around the position where the discharge port of the spray nozzle faces the cleaning nozzle. In a state of being dynamic, in which reciprocally driven forward and backward to the cleaning nozzle by the cleaning nozzle driving unit.
Thereby, the control unit drives the spray nozzle to reciprocate forward and backward near the position where the direction of the discharge port of the spray nozzle faces the direction of the washing nozzle, and drives the washing nozzle to reciprocate forward and backward by the washing nozzle drive unit. Since the cleaning bubbles are discharged from the discharge port, the cleaning bubbles can be discharged over a wider area of the surface of the cleaning nozzle, and the wider area of the surface of the cleaning nozzle can be cleaned to prevent the adhesion of dirt.

A sanitary washing device according to a second aspect of the present invention includes a heat exchanger for heating washing water, a washing nozzle for washing a human body, a washing nozzle driving unit for driving the washing nozzle forward and backward, and a foam generating unit for generating washing foam. A spray nozzle for discharging washing water or cleaning foam on the inner surface of the toilet bowl, a water discharge amount variable means for changing a flow rate of the washing water to be sent to the washing nozzle and the spray nozzle, and a driving direction of a discharge port of the spray nozzle. A spray nozzle driving unit, an on-off valve for opening and closing a water path to the spray nozzle, a control unit for controlling these operations, and an operation unit for instructing and setting the control unit, wherein the control unit includes: At the time of nozzle cleaning in which cleaning water or cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle, the spray nozzle is stopped at a position where the cleaning nozzle has advanced to the vicinity of the human body cleaning position, and the spray nozzle is sprayed. It is intended to drive a reciprocating rotation by a drive unit.
Accordingly, the control unit stops the cleaning nozzle driving unit at the position where the cleaning nozzle has advanced to the vicinity of the human body cleaning position, and controls the spray nozzle to reciprocate forward and backward by the spray nozzle driving unit, and to clean the cleaning bubble from the discharge port of the spray nozzle. Is discharged, so that cleaning bubbles can be discharged over a wide area of the surface of the cleaning nozzle, and the wide area of the surface of the cleaning nozzle can be cleaned to suppress the adhesion of dirt.

A third aspect of the present invention is a foam generating unit according to the first or second aspect , further comprising a foam tank in which the control unit opens the on-off valve to supply cleaning water from the heat exchanger by the water discharge amount variable means, It is also possible to provide a detergent pump for supplying the detergent in the tank to the foam tank and an air pump for supplying air to the foam tank, and the cleaning water or the foam in the foam tank may be discharged from the spray nozzle.

  Thereby, not only water or hot water is discharged to the surface of the cleaning nozzle or the inner surface of the toilet, but the cleaning bubbles containing the detergent are discharged, so that the cleaning effect and the effect of suppressing the adhesion of dirt can be further enhanced. . Further, the cleaning foam containing the detergent can suppress an unpleasant odor and can improve a visually comfortable feeling of comfort.

In a fourth aspect of the invention, the control unit according to any one of the first to third aspects is characterized in that the washing water or the washing foam is discharged from the spray nozzle toward the surface of the washing nozzle by the washing water variable means. May be configured to be smaller than when the washing water or the washing foam is discharged from the spray nozzle toward the inner surface of the toilet.

The distance from the spray nozzle to the wash nozzle when the wash water or the wash foam is discharged from the spray nozzle to the surface of the wash nozzle is shorter than the distance to the inner surface of the toilet when the direction of the discharge port of the spray nozzle is the same. Furthermore, the surface area required for spraying on the washing nozzle is smaller than the surface area required for spraying on the inner surface of the toilet. From these, the flow rate of the wash water by the water discharge amount variable means when the wash water or the wash foam is discharged from the spray nozzle toward the surface of the wash nozzle discharges the wash water or the wash foam from the spray nozzle toward the inner surface of the toilet. Even if the amount is smaller than the case, it is possible to sufficiently suppress the adhesion of dirt. This makes it possible to suppress the contamination of the cleaning nozzle without wasting the cleaning water or the cleaning foam.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

(Embodiment 1)
FIG. 1 is a perspective view of the appearance of the sanitary washing device according to the present embodiment installed on a toilet, FIG. 2 is a perspective view of the sanitary washing device with a front main body case removed, and FIG. Shows a perspective view of the sanitary washing device with a front main body case and a control unit removed, FIG. 4 shows a perspective view of a top surface of an operation unit of the sanitary washing device, and FIG. 5 shows a perspective view of the appearance of a remote controller. It is shown.

<1> Overall Configuration of Sanitary Washing Apparatus As shown in FIG. 1, the sanitary washing apparatus 100 includes a main body 200, a toilet seat 300, a toilet lid 320, a remote controller 400, and a human body detection sensor 450 as main constituent members. , The toilet seat 300 and the toilet lid 320 are integrally formed and installed on the upper surface of the toilet 110.

  In the present embodiment, the installation side of the main body 200 of the sanitary washing device 100 is set to the rear, the installation side of the toilet seat 300 is set to the front, the right side is set to the right toward the front, and the left side is set to the left toward the front. The arrangement of elements will be described.

  An operation unit 210 is provided integrally on the side of the main body 200 so as to protrude therefrom, and a toilet seat 300 and a toilet lid 320 are attached to the front of the main body 200 via a toilet seat toilet lid rotating mechanism 360 so as to be freely opened and closed. . The toilet seat lid rotating mechanism 360 includes a DC motor and a plurality of gears, and can open and close the toilet seat 300 and the toilet lid 320 individually or simultaneously.

  When the toilet lid 320 is opened as shown in FIG. 1, the toilet lid 320 stands up so as to be located at the rearmost part of the sanitary washing device 100. When the toilet lid 320 is closed, the upper surface of the toilet seat 300 is hidden. The toilet lid 320 is made of a member formed by molding a resin material, and has a double structure and a heat insulating structure made of a heat insulating material.

  The toilet seat 300 includes a toilet seat heater (not shown) for heating the seating surface, and heats the seating surface of the toilet seat to a comfortable temperature.

  In addition, a seating sensor 330 that detects a human body sitting on the toilet seat 300 is installed at a bearing portion in the main body 200 that supports the rotation shaft of the toilet seat 300. This seating sensor is a weight type seating sensor, and detects that the user is sitting on the seating surface of the toilet seat 300 by opening and closing a switch according to a weight change caused by the user sitting on the toilet seat 300. It is.

  The main body 200 includes a sub-tank 600, a heat exchanger 700, a nozzle device 800, and the like. The ass washing nozzle 831 which is a washing nozzle for washing a part of a human body, and a spray for spraying washing water or washing foam on the inner surface of the toilet. A nozzle 550, a deodorizing device 120 for deodorizing odor during defecation, a control unit 130 for controlling each function of the sanitary washing device 100, and the like are provided.

As shown in FIG. 2, a nozzle device 800, which is a main component of the cleaning means 500, is provided at a central portion inside the main body 200, and a spray nozzle 550 is provided on the right side of the nozzle device 800.
On the left side of the nozzle device 800, a deodorizing device 120 is installed. On the left side, a toilet seat / toilet lid rotating mechanism 360 for opening and closing the toilet seat 300 and the toilet lid 320 is installed.

  As shown in FIG. 3, on the right side of the nozzle device 800, a water stop solenoid valve 514 of the washing means 500, a sub tank 600, and the like are installed in front, and a heat exchanger 700 is installed behind it. Behind the heat exchanger 700, a water pump 516, which is a water discharge amount variable means, is installed. Further, as shown in FIG. 2, a control unit 130 is provided above the cleaning means 500.

  An operation unit 210 is integrally provided on the right side of the main body 200 so as to protrude forward. As shown in FIG. 4, a plurality of switches for operating and setting each function of the sanitary washing device 100 and an indicator light 240 are provided. Is installed.

  An operation board (not shown) is provided inside the operation unit 210. A plurality of tact switches and a plurality of LEDs are installed on the operation board, and a pressing operation of the tact switch and visual recognition of the LEDs can be performed via a switch nameplate attached to an upper surface of the operation unit 210.

  Further, an infrared receiver 211 that receives an infrared signal transmitted from the remote controller 400 and the human body detection sensor 450 is disposed behind the upper surface of the operation unit 210.

  The switches installed on the operation unit 210 include a plurality of operation switches 220 for operating the cleaning operation and a plurality of setting switches 230 for setting various functions. Further, a plurality of LEDs for displaying a setting state are provided as the indicator lamp 240.

  As the operation switches 220, a bottom cleaning switch 221 that is used as an auxiliary when the battery of the remote controller 400 runs out or fails, and a nozzle cleaning switch 222 that is operated when cleaning the nozzles are provided.

  The setting switch 230 includes a hot water temperature switch 231 for setting the temperature of the washing water, a toilet seat temperature switch 232 for setting the temperature of the toilet seat, and an 8-hour switch for stopping the heat retention of the toilet seat 300 for 8 hours after being set. 233, a power saving switch 234 that automatically learns a time zone in which the sanitary washing device 100 is not used, and saves power by lowering the heat retaining temperature of the toilet seat 300 in an unused time zone, and an automatic operation of the toilet seat 300 and the toilet lid 320. A toilet lid automatic opening / closing switch 235 for setting the opening / closing operation is provided.

  Many operations of the sanitary washing device 100 are performed by a remote controller 400 configured separately from the main body 200. The remote controller 400 is mounted on a wall surface of a toilet room or the like where a user sitting on the toilet seat 300 can easily operate.

  As shown in FIG. 5, the entire shape of the remote controller 400 is formed in a thin rectangular parallelepiped, and a plurality of switches and an indicator light are installed on the upper surface and the front surface of a box-shaped remote controller main body 401 formed of a resin material. . In addition, a transmission unit 402 that transmits an operation signal of the remote controller 400 to the main body 200 by infrared rays is disposed in an upper corner of the remote control main body 401.

  A control board (not shown) constituting a control function of the remote controller 400 and a battery (not shown) serving as a power supply of the remote controller 400 are built in the remote control main body 401.

At the center of the front surface of the remote control main body 401, a butt washing switch 410 for starting butt washing, a bidet washing switch 411 for starting bidet washing for washing a woman's local washing, and stopping butt washing and bidet washing. A stop switch 412, a move cleaning switch 413 that periodically moves the cleaning position back and forth during the butt cleaning and bidet cleaning to enable a wide range of cleaning, and a cleaning intensity that is periodically changed during the butt cleaning. A rhythm cleaning switch 414 is provided.

  On the front upper part, a washing strength switch 415 for adjusting the washing strength at the time of ass washing and bidet washing with two switches, and washing for adjusting the washing position at the ass washing and bidet washing with two switches. A position switch 416 and a spray switch 417 for discharging washing water or washing foam from the spray nozzle 550 and spraying the washing water or the washing foam on the inner surface of the toilet bowl or the surface of the washing nozzle are arranged.

  Above the cleaning intensity switch 415, an LED intensity indicator 421 for displaying the cleaning intensity in five stages, and above the cleaning position switch 416, a position indicator for displaying the cleaning position in five stages. 422 are arranged.

  A toilet lid switch 418 for electrically opening and closing the toilet lid and a toilet seat switch 419 for electrically opening and closing the toilet seat are installed on the upper surface of the remote control main body 401. The user can optionally operate the toilet seat 300 and the toilet lid 320 by operating the switches. Can be opened and closed.

  The human body detection sensor 450 is configured separately from the main body 200, and is attached to a wall surface of a toilet room or the like. The human body detection sensor 450 includes a pyroelectric sensor (not shown) that receives infrared rays emitted from a human body, a sensor control unit (not shown) that determines detection of a human body based on a signal from the pyroelectric sensor, and a sensor control unit. An infrared transmitter (not shown) for transmitting a human body detection signal from the controller 200 to the controller of the main body 200 by infrared rays, a battery (not shown) serving as a power source of the human body detection sensor 450, and the like.

<2> Water circuit configuration of sanitary washing device FIG. 6 is a schematic diagram showing a water circuit configuration of the sanitary washing device.

  Inside the main body 200, there is provided a cleaning means 500 for cleaning a local part of the user. The cleaning means 500 is formed by a nozzle device 800 for ejecting cleaning water, and a series of cleaning water supply channels for supplying cleaning water to the nozzle device 800 from a water supply connection port 510.

  As shown in FIG. 6, the cleaning water supply flow path includes a water supply connection port 510, a strainer 511, a check valve 512, a constant flow valve 513, a water stop solenoid valve 514, a relief valve 515, and a sub tank 600. , A heat exchanger 700, a buffer tank 750, a water pump 516 as a water discharge amount varying means, and a flow regulating valve 517 are sequentially installed and connected to the nozzle device 800.

  A water supply connection port 510 to which a water pipe is connected is disposed on the lower right side of the main body 200. A strainer 511 for preventing inflow of dust contained in tap water is provided inside the water supply connection port 510, and the water is stored in the sub tank 600. A check valve 512 for preventing the drained water from flowing back to the water supply pipe is incorporated.

  Downstream of the check valve 512, a constant flow valve 513 that keeps the amount of washing water flowing in the flow path constant, a water stop electromagnetic valve 514 that electrically opens and closes the flow path, and a relief valve 515 are integrally formed. ing.

  Downstream of the water stop solenoid valve 514, a sub-tank 600 having an air release port, a heat exchanger 700 for instantly heating the wash water, and a buffer tank for equalizing the temperature of the hot water heated by the heat exchanger 700 750 is connected.

Downstream of the buffer tank 750, a water pump 516, which is a water discharge amount variable means, is connected. The nozzle device 800 is connected via a flow control valve 517 to the downstream of the water pump 516 which is a water discharge amount variable means. Each port of the flow control valve 517 has a tail cleaning nozzle 831 of the nozzle device 800, The bidet cleaning nozzle 832 and the nozzle cleaning unit 833 are connected.

  In the cleaning water supply flow path 690, a branch flow path 530 branched between a water pump 516, which is a water discharge amount variable means, and a flow regulating valve 517 supplies cleaning water to the foam tank 532 via a check valve 531. The spray nozzle 550 is connected downstream of the foam tank 532. A detergent tank 533 for supplying a detergent to the foam tank 532 and a detergent pump 534 are connected, and an air pump 535 for sending air to the foam tank 532 to produce a washing foam is provided.

  Note that the broken line in FIG. 6 indicates that the control unit 130 is electrically connected.

  As shown in FIGS. 7 and 8, among the members constituting the cleaning means 500, the water supply connection port 510, the strainer 511, the check valve 512, the constant flow valve 513, the water stop solenoid valve 514, the relief valve 515, and the sub tank 600 , The heat exchanger 700, the buffer tank 750, and the water pump 516, which is a variable water discharge amount means, are integrated into a chassis 501 formed of a resin material and integrally formed, and are assembled to the rear body case 201 of the main body 200. .

  As shown in FIG. 7, the strainer 511 and the check valve 512 are integrated into the water supply connection port 510, and the constant flow valve 513 and the relief valve 515 are integrated into the electromagnetic valve 514. The buffer tank 750 is configured integrally with the heat exchanger 700.

  The water supply connection port 510 and the water shutoff solenoid valve 514, the water shutoff solenoid valve 514 and the subtank 600, and the subtank 600 and the heat exchanger 700 do not pass through a connection tube or the like, but pass through a mutual connection port via an O-ring as a packing. It is configured to connect directly. The members constituting these water circuits are installed and fixed at predetermined positions on the chassis 501.

  By employing such a configuration, the watertight structure can be improved, and the arrangement accuracy of the mutual members can be improved. In particular, by improving the arrangement accuracy of the sub-tank 600 and the heat exchanger 700, the control accuracy of the flow rate of the washing water can be improved, and the performance and control accuracy of the cleaning means 500 can be improved.

  The water pump 516, which is a water discharge amount variable means, is a piston pump which is a positive displacement pump. As shown in FIGS. 14 and 15, the outer shape is substantially L-shaped, and a substantially cylindrical motor portion 516a is provided. The link mechanism 516b converts the rotational motion of the motor into reciprocating motion, and the piston 516c is driven by the reciprocating motion of the link mechanism 516b. A water inlet 516d and a discharge port 516e are provided as connection ports on the outer surface of the piston 516c.

  When the water pump 516, which is the water discharge amount variable means having the above-described configuration, is driven, the vibration generated in the motor portion 516a having only the rotational motion is smaller than that in the link mechanism portion 516b and the piston portion 516c which have a reciprocating motion. I have.

  By driving the motor unit 516a, the piston unit 516c starts reciprocating motion, sucks cleaning water from the water suction port 516d, and discharges cleaning water from the discharge port 516e. The water flow is accompanied by moderate pulsation due to the reciprocating movement of.

  The outer periphery of the substantially cylindrical motor portion 516a of the water pump 516, which is a water discharge amount variable means having the above configuration, is surrounded by an elastic foamed resin cushioning member (not shown) provided at the rear of the chassis 501. The link mechanism 516b and the piston 516c are suspended by being inserted downward into the substantially cylindrical water pump installation part 501a.

  The water pump installation portion 501a is formed with a small thickness, and is formed above a rib-like leg portion 501b rising from the bottom surface of the chassis 501. With the thin wall thickness, it is possible to obtain the effect of absorbing the vibration of the water pump 516 which is the water discharge amount variable means by the elasticity of the resin.

  A tap hole 712 which is a connection port of the heat exchanger 700 integrally formed with the buffer tank 750 and a water suction port 516d which is a connection port of a water pump 516 which is a water discharge amount variable means are connection tubes made of a soft resin. Connected.

  As described above, the motor part 516a with less vibration is installed on the water pump installation part 501a formed with a small thickness of the chassis 501 via the buffer member, and the link mechanism part 516b and the piston part 516c that generate much vibration are provided. Is suspended in a free state, and is connected to the buffer tank 750 by a connection tube 502 made of a soft resin, so that vibration generated when the water pump 516, which is a water discharge amount variable unit, is driven is generated by the chassis 501 and other components. The transmission to the member and the main body 200 can be suppressed, and the effect of improving the comfort and durability of the sanitary washing device can be obtained.

  In particular, the water pump 516, which is a variable water discharge amount means, is supported via two different materials: a cushioning member made of foamed resin and a resin having elasticity forming the water pump installation portion 501a. The vibration of the frequency is absorbed, and the transmission of the vibration to the main body can be effectively suppressed.

<3> Configuration of Sub-Tank FIG. 9 is a perspective view showing the appearance of the sub-tank, FIG. 10 is a cross-sectional view of the sub-tank in the lateral direction, and FIG. 11 is a cross-sectional view of the sub-tank in the front-rear direction. .

  As shown in FIG. 9, the sub-tank 600 includes a tank body 610 molded of a resin material, a water level detection sensor 620 for detecting the level of cleaning water stored in the tank body 610, and cleaning supplied to the tank body 610. And an incoming water temperature sensor 630 which is a thermistor which is a water temperature detecting means for detecting the temperature of the water.

  The tank body 610 includes a front tank 611 that forms a front wall, both side walls, a bottom surface, and a top surface of the tank, a rear tank 612 that forms a rear wall of the tank, and an atmosphere opening portion disposed on the top surface of the tank body 610. And 613. The overall shape of the tank main body 610 is formed by a plurality of planes including a front wall, a rear wall, both side walls, a bottom surface, and a top surface, and has a substantially square shape in plan view. The front wall has an inclined portion that recedes from the middle, the side view shape is formed in a substantially trapezoidal shape in which the upper portion is narrower than the lower portion, and the cross-sectional area of the upper portion of the tank body 610 is smaller than the lower portion. .

  A water inlet 601 is provided at a lower part of one side wall of the tank body 610, and a water outlet 602 is provided at a lower part of a rear wall of the tank body 610. The atmosphere opening part 613 arranged on the top surface of the tank body 610 has a tank body 610. An atmosphere opening port 603 that communicates the inside and outside of 610 is provided. By providing the atmosphere opening port 603, the air accumulated in the tank main body 610 can be released to the outside, and the internal pressure of the tank main body 610 can be constantly maintained at the atmospheric pressure.

  Since the inside of the sub-tank 600 is constantly maintained at the atmospheric pressure, the flow path from the downstream of the sub-tank 600 to the water inlet 516d of the water pump 516, which is the water discharge amount variable means, is also maintained at the atmospheric pressure. Since the water pump 516 can supply water without being affected by fluctuations in water pressure, a stable pump function can be exhibited.

  A buffer section 613a having a large cross-sectional area of the flow path is formed in the flow path communicating with the air release port 603 of the air release section 613, and the cleaning water is likely to flow out from the air release port 603 with bubbles. In such a case, the washing water is temporarily stored in the buffer unit 613a, and has a function of suppressing the outflow from the air opening port 603.

  A partition wall 614 is provided inside the tank body 610, and the partition wall 614 divides the inside of the tank body 610 into two tanks, i.e., a water tank 615 and a storage tank 616. A water inlet 601 is provided near the bottom surface of the side surface of the water tank 615, and a water outlet 602 is provided near the bottom surface of the rear wall of the storage tank 616.

  By providing the partition wall 614 and forming the water inlet tank 615 and the storage tank 616, when the washing water flowing from the water inlet 601 contains air, the air flows from the upper part of the water inlet tank 615 to the atmosphere opening port 603. Since the water passes through and is discharged to the outside, only the cleaning water containing no air can flow into the storage tank 616.

  Above the water tank 615, a barrier 617 is provided between the upper surface opening 615a of the water tank 615 and the atmosphere opening part 613, and protrudes substantially horizontally from the side wall of the tank body 610. The barrier 617 has a size that covers the entire upper surface opening of the water tank 615.

  Further, inside the water inlet tank 615, a plurality of rectifying ribs 618 are formed on the side wall and the partition wall 614 of the tank main body 610 so as to protrude alternately in a substantially horizontal direction.

  The washing water flowing from the water inlet 601 first flows into the lower part of the water inlet tank 615, and rises in the water inlet tank 615 while changing the direction of the flow with the rectifying rib 618. At this time, when the pressure of the washing water flowing from the water inlet 601 is high, or when the flow is significantly disturbed by including a large amount of air, the flow is appropriately rectified by the rectification rib 618 and the flow of the rectification rib 618 is reduced. The vortex generated on the downstream side separates the air contained in the washing water.

  The washing water from which the air that has risen in the water inlet tank 615 is separated flows over the upper end of the partition wall 614 and flows into the storage tank 616 to be stored.

  At this time, even when the pressure of the cleaning water flowing from the water inlet 601 is high, or when the flow is significantly turbulent including a large amount of air, the upward flow of the cleaning water is suppressed by the barrier 617, and the cleaning water is removed. It directly hits the atmosphere opening part 613 and is prevented from flowing out of the sub tank 600 from the atmosphere opening port 603.

  As described above, the cleaning water flowing in from the water inlet 601 is separated from the air contained in the cleaning water while rising in the water inlet tank 615, and the separated air is discharged from the tank opening 603 to the outside of the tank body 610. You. Cleaning water containing no air is stored in the storage tank 616, and is supplied to the heat exchanger 700 from the water outlet 602.

  When air is mixed in the washing water supplied from the sub tank 600 to the heat exchanger 700, bubbles are generated inside the heat exchanger 700, so that the temperature inside the heat exchanger 700 rises abnormally and heat exchange occurs. The heat exchanger 700 may be damaged, and by providing the partition wall 614 to prevent air from being mixed, an effect of preventing the heat exchanger 700 from being damaged can be obtained.

  The water level detection sensor 620 includes a common electrode 621 serving as a common electrode and a plurality of water level electrodes 622 provided for each water level. In the present embodiment, one common electrode 621 and two water levels are provided. It is composed of an electrode 622.

  A common electrode 621 is arranged on the inner surface of the lower part of the front wall of the tank main body 610, and a water level electrode 622 is arranged on the inner surface of the rear wall of the tank main body 610. The water level electrode 622 includes an upper limit electrode 623 provided at an upper portion and a lower limit electrode 624 provided at a lower portion. The common electrode 621 is provided at a position lower than the lower limit electrode 624, and the common electrode 621 is always in a flooded state in a normal use state.

  By installing the common electrode 621 and the upper electrode 623 and the lower electrode 624, which are the water level electrodes 622, on different surfaces, the effect of suppressing erroneous detection of residual water adhering to the inner surface of the tank body 610 as stored water is reduced. Obtainable.

  The water level is detected by applying a DC voltage between the common electrode 621 and the water level electrode 622 and changing the voltage depending on whether or not the water level electrode 622 is submerged. That is, when the washing water flows into the storage tank 616 and the water level rises and the lower limit electrode 624 and the upper limit electrode 623 are flooded, the voltage between the common electrode 621 and the lower limit electrode 624 and the upper limit electrode 623 decreases, so that the control unit 130 Detects the water level.

  The upper electrode 623 is used for detecting the upper water level, and the lower electrode 624 is used for detecting the lower water level. The upper limit electrode 623 is installed at a position lower than the atmosphere opening port 603, and thus, it is possible to prevent the washing water from flowing out from the atmosphere opening port 603. In addition, the lower limit electrode 624 is provided above the water outlet 602, thereby preventing air from flowing into the heat exchanger 700.

<4> Configuration of Heat Exchanger FIG. 12 is a perspective view showing the appearance of the heat exchanger, and FIG. 13 is a sectional view of the heat exchanger.

  In the heat exchanger 700 according to the present embodiment, a buffer tank 750 is integrally formed, and a buffer tank 750 is provided above the heat exchanger 700.

  As shown in FIG. 12, the heat exchanger 700 has a substantially rectangular flat shape when viewed from the front, and has a casing 701 molded of reinforced ABS resin in which glass fiber is compounded with ABS resin, a flat plate heater 702 made of ceramic, and a tap water. The member 703 is a main component.

  The casing 701 includes a front member 710 forming a front part and a back member 720 forming a back part. A flat heater 702 is installed in a space formed between the front member 710 and the back member 720. I have. The gap formed in the facing portion between the front member 710 and the flat heater 702 and the gap formed in the facing portion between the rear member 720 and the flat heater 702 are used as a heating channel 715, and the cleaning water flowing through the heating channel 715 is supplied to the flat heater. At 702, the temperature is raised instantaneously.

  The heat exchanger 700 is provided with a water inlet 711 as a connection port on the right side of the lower end of the front surface of the front member 710, and a water outlet 712 as a connection port on a water tap member 703 installed on the upper right side of the front member 710. It has.

  As shown in FIG. 13, a water inlet channel 713 connected to the water inlet 711 is provided over substantially the entire width of the lower end of the casing 701. A plurality of slits 714 are provided on the upper surface of the water inlet channel 713 over the entire width, and the washing water flowing into the water inlet channel 713 passes through the slit 714 and flows into the heating channel 715. The slit 714 allows the cleaning water to flow uniformly over the entire width of the heating channel 715.

  A partition rib 716 is provided at an upper end of the heating channel 715, and a buffer tank 750 is provided above the partition rib 716. The partition rib 716 is provided with a plurality of water passage holes 717 over substantially the entire width, and the cleaning water heated in the heating channel 715 passes through the water passage holes 717 and flows into the buffer tank 750. ing.

  In the buffer tank 750, projections 718 having a substantially semicircular cross section are provided at intervals over substantially the entire width. The washing water flowing toward the tap hole 712 in the buffer tank 750 is disturbed by the projections 718, so that the washing water is mixed and the temperature unevenness of the washing water is eliminated. Hot water is discharged from the gate 712.

  Two thermistors are installed on the tapping member 703, one of which is a tapping temperature sensor 730 that detects the tapping temperature of the washing water, and the other is an overheating temperature sensor 731 that detects the overheating temperature of the heat exchanger 700. It is.

<5> Configuration of Nozzle Device FIG. 16 is a perspective view showing a stored state of the nozzle device in the present embodiment, FIG. 17 is a sectional view taken along the line AA shown in FIG. 16, and FIG. 18 shows a stored state of the nozzle device. 19 is a detailed sectional view of a portion B shown in FIG. 18, FIG. 20 is a CC sectional view shown in FIG. 19, and FIG. 21 is a transverse sectional view of a stored state of the nozzle device. 22 is a detailed cross-sectional view of a portion C shown in FIG. 21, FIG. 23 is a vertical cross-sectional view showing a state where the nozzle device is cleaned, and FIG. 24 is a detailed cross-sectional view of a D portion shown in FIG. 25 is a longitudinal sectional view showing a bidet cleaning state of the nozzle device, FIG. 26 is a detailed sectional view of a portion E shown in FIG. 25, and FIG. 27 is a transverse sectional view of the nozzle portion showing the bidet cleaning state of the nozzle device. FIG. 28 is a detailed sectional view of a portion G shown in FIG.

  As shown in FIG. 16, the nozzle device 800 drives a substantially triangular frame-shaped support portion 810 molded from a resin material, a nozzle portion 820 that moves forward and backward along the support portion 810, and a forward and backward movement of the nozzle portion 820. A cleaning nozzle drive unit 860 to perform cleaning and a flow control valve 517 for switching the supply of the cleaning water to the nozzle unit 820.

  In the present embodiment, the arrangement of the components will be described with the storage direction of the nozzle unit set to the rear, the advance direction of the nozzle unit 820 set to the front, the right side to the front and the left side to the left from the rear to the front. I do.

  The support portion 810 is formed in a substantially triangular frame shape when viewed from the side, and has a substantially horizontal bottom portion 811, an inclined portion 812 that descends from a rear portion toward a front portion, and a rear end of the bottom portion 811 and the inclined portion 812. Is formed. A guide rail 814 for guiding the nozzle unit 820 to move forward and backward and a rack guide 815 for guiding the flexible rack 861 of the cleaning nozzle drive unit 860 are formed on the inclined portion 812 over substantially the entire length. A substantially cylindrical holding portion 816 that supports the nozzle portion 820 so as to surround it is formed integrally below the front end of the inclined portion 812.

  As shown in FIG. 16, a guide rail 814 for guiding the nozzle portion 820 has a substantially T-shaped cross section. Further, the rack guide 815 for guiding the flexible rack 861 has a substantially U-shaped cross section with one side opened, and regulates and guides the upper and lower surfaces and one side of the flexible rack 861. It has a configuration.

The rack guide 815 is formed continuously to the vertical part 813 and the bottom part 811 at the rear part of the support part 810 following the inclined part 812, and the inclined part 812 and the vertical part 813 and the vertical part 813 and the base part are formed. The corner with 811 is connected in an arc shape. The cross-sectional shape of the rack guide 815 formed on the vertical side portion 813 and the bottom side portion 811 is also substantially U-shaped, but the open side surface is on the left side in the inclined portion, whereas the vertical side portion 813 and the bottom side The right side is opposite to the portion 811. The open surfaces of the rack guide 815 of the vertical side portion 813 and the bottom side portion 811 are closed by a support member lid of another member.

  The cleaning nozzle drive unit 860 that moves the nozzle unit 820 forward and backward along the guide rail 814 rotates a flexible rack 861 coupled to the nozzle unit 820, a pinion gear 862 that meshes with the flexible rack 861, and a pinion gear 862. It comprises a drive motor 863 for driving.

  The drive motor 863 is a stepping motor, and the rotation angle is controlled by a pulse signal. The rotation of the drive motor 863 drives the flexible rack 861 via the pinion gear 862.

  A gap is provided between the inner peripheral surface of the holding portion 816 of the support portion 810 and the outer peripheral surface of the nozzle portion 820, and the cleaning water spouted from the nozzle portion 820 is flushed with the inner peripheral surface of the holding portion 816 and the nozzle. The nozzle 820 is configured to flow into a gap formed between the nozzle 820 and the outer peripheral surface of the nozzle 820 to clean the outer peripheral surface.

  In addition, a nozzle cover 801 that opens and closes by opening and closing the nozzle portion 820 is provided in front of the holding portion 816 so as to be openable and closable when the nozzle portion 820 is housed. And so on.

  A water supply joint (not shown) for connecting a water supply tube (not shown) connected to the cleaning water supply means and a connection tube 802 for supplying the cleaning water from the support portion 810 to the flow control valve 517 are provided at a bottom portion 811 of the support portion 810. 817 are formed.

  The nozzle portion 820 includes a rod-shaped nozzle body 830 molded of a resin material, a cylindrical nozzle cover 840 covering substantially the entirety of the nozzle body 830, and connecting means 850 for pulling the nozzle cover 840 by the nozzle body 830. Have been.

  The nozzle main body 830 includes a tail cleaning nozzle 831 for cleaning a local part, a bidet cleaning nozzle 832 for cleaning a local part of a woman, and a nozzle cleaning part 833 for cleaning the nozzle part 820.

  The buttocks washing nozzle 831 includes a buttocks washing spout 834 that opens upward at the tip of the nozzle body 830, and a buttocks washing channel 835 that communicates with the buttocks washing spout 834 from the rear end of the nozzle body 830. Have been. The buttocks washing channel 835 is installed at the lower part of the nozzle body 830 and is bent upward below the buttocks washing spout 834. Is installed. The washing water spouted from the tail washing spout 834 is spouted upward through the spout opening 844 of the nozzle cover 840.

  The bidet cleaning nozzle 832 includes a bidet cleaning jet 836 disposed behind the buttocks cleaning jet 834, and a bidet cleaning channel 837 that communicates with the bidet cleaning jet 836 from the rear end of the nozzle body 830. . The cleaning water spouted from the bidet cleaning spout 836 passes through the spout opening 844 of the nozzle cover 840 and is spouted upward.

The nozzle cleaning unit 833 includes a nozzle cleaning port 838 disposed on a side surface of the nozzle main body 830 and a nozzle cleaning channel 839 communicating from the rear end of the nozzle main body 830 to the nozzle cleaning port 838. The cleaning water spouted from the nozzle cleaning spout 838 is spouted into the nozzle cover 840 and discharged from the nozzle cover 840 drain port 845 to the outside of the nozzle cover 840. The cleaning water spouted from the nozzle cleaning spout 838 is used for cleaning the nozzle portion 820 and its surroundings.

  The nozzle portion 820 is supported in a state where the front portion is inserted into the holding portion 816 of the support portion 810, and is slidably installed with the rear portion suspended on the guide rail 814. As shown in FIG. The storage position where the nozzle portion 820 is stored behind the holding portion 816, the buttocks cleaning position where the nozzle portion 820 protrudes from the holding portion 816, and the bidet cleaning position illustrated in FIG. It is possible to advance and retreat between.

  The nozzle cover 840 includes a nozzle cover body 841 and a connecting member 842. The nozzle cover body 841 is formed by forming a thin stainless steel plate into a cylindrical shape, and has a closed surface at the front end and an open surface at the rear end. The connecting member 842 has a substantially cylindrical shape molded of a resin material, and a connecting piece 843 that engages with the nozzle body 830 is formed on both sides.

  A nozzle cover stopper for regulating the sliding range of the nozzle cover 840 is integrally formed on the right side of the rear end of the connecting member 842, and the nozzle cover stopper is formed on the front stopper receiving portion and the rear stopper receiving portion formed on the support portion 810. The contact range restricts the sliding range.

  A part of the connecting member 842 is fixed and integrated while being inserted into the nozzle cover main body 841 from the opening at the rear end of the nozzle cover main body 841. On the front upper surface of the nozzle cover main body 841, one jet opening 844 is provided in which the tail cleaning jet 834 and the bidet cleaning jet 836 of the nozzle main body 830 can face each other. In addition, a drain port 845 for discharging the washing water flowing into the nozzle cover body 841 to the outside is provided on the front lower surface of the nozzle cover body 841.

  The inner diameter of the nozzle cover 840 is slightly larger than the outer diameter of the nozzle body 830, and the nozzle body 830 and the nozzle cover 840 can slide smoothly with each other when the nozzle body 830 is inserted into the nozzle cover 840. It has become.

  A flow regulating valve 517 is provided on the rear end face of the nozzle body 830. The flow regulating valve 517 includes a disc-type valve body 517a and a stepping motor 517b for driving a switching operation. The flow control valve 517 selectively supplies cleaning water to the buttocks cleaning channel 835, the bidet cleaning channel 837, and the nozzle cleaning channel 839.

  A water supply port 517c for supplying washing water to the flow control valve 517 is provided on an outer surface of the valve body 517a of the flow control valve 517, and a connection tube 802 communicating with the water supply joint 817 of the support portion 810 is provided at the water supply port 517c. Are joined.

  Next, the connecting means 850 composed of the connecting member 842 of the nozzle cover 840 and the connecting receiving portion 851 of the nozzle body 830 will be described.

  As shown in FIGS. 22 and 28, a connection receiving portion 851 is formed on the right side of the outer periphery of the rear end of the nozzle body 830. The connection receiving portion 851 is formed with two substantially V-shaped grooves, and two front concave portions 851a at the front and two rear concave portions 851b at the rear are arranged at an interval in the front and rear. The distance between the front recess 851a and the rear recess 851b is equal to the distance between the tail cleaning jet 834 and the bidet cleaning jet 836.

  On the other hand, the connecting member 842 of the nozzle cover 840 is molded of a substantially cylindrical resin material, and has a connecting piece 843 protruding rearward on both sides of the rear portion. A protruding substantially V-shaped connecting projection 843a is formed.

  When the nozzle body 830 is inserted into the nozzle cover 840, the connection protrusion 843a is constantly pressed against the connection receiving portion 851 of the nozzle body 830 due to the elasticity of the connection member 842 of the nozzle cover 840. When engaged with the front recess 851a or the rear recess 851b, the nozzle body 830 and the nozzle cover 840 are connected, and the nozzle cover 840 can be pulled and moved by the nozzle body 830.

  As shown in FIG. 22, when the connection protrusion 843a is in the front recess 851a, as shown in FIG. 26, the bidet cleaning jet 836 of the nozzle body 830 and the jet opening 844 of the nozzle cover 840 face each other. As shown in FIG. 28, when the connecting protrusion 843a is in the rear concave portion 851b, as shown in FIGS. 19 and 24, the buttocks washing outlet 834 and the outlet 844 face each other. .

<6> Control and Operation of Cleaning Unit FIG. 29 is a time chart of the cleaning unit during initial use, and FIG. 30 is a time chart of the cleaning unit during normal use.

  The basic operation of the cleaning means 500 is as follows. Tap water flowing through the water supply pipe is supplied as cleaning water from the water supply connection port 510, and cleaning water is supplied to the sub-tank 600 by opening the water stop solenoid valve 514. Is done. The flow rate of the washing water flowing in the flow path is maintained constant by the constant flow valve 513. The operation of the water stop electromagnetic valve 514 is controlled by the control unit 130 based on the operations of the remote controller 400 and the operation unit 210.

  The washing water sent to the sub-tank 600 is stored in the sub-tank 600 and sent to the heat exchanger 700 and a water pump 516 as a water discharge amount variable means. The cleaning water is supplied to the nozzle device 800 via the flow control valve 517 by driving the water pump 516 which is the water discharge amount variable means. The drive of the water pump 516, which is a water discharge amount variable unit, is controlled by the control unit 130 based on the operations of the remote controller 400 and the operation unit 210. The control unit 130 drives the water pump 516, which is a water discharge amount variable unit, starts energization of the flat heater 702 of the heat exchanger 700, and starts heating of the cleaning water.

  The control unit 130 controls the energization of the flat heater 702 based on the detection information of the incoming water temperature sensor 630 and the outgoing water temperature sensor 730, and maintains the temperature of the cleaning water set by the hot water temperature switch 231 of the operation unit 210.

  The control unit 130 controls the flow control valve 517 based on the operation information of the operation unit 210 and the remote controller 400 to supply the cleaning water to any one of the tail cleaning nozzle 831, the bidet cleaning nozzle 832, and the nozzle cleaning unit 833 of the nozzle device 800. Supply. As a result, the washing water is spouted from one of the buttocks washing spout 834, the bidet washing spout 836, and the nozzle cleaning spout 838.

  Next, the control related to the sub tank 600, which is a characteristic configuration of the present embodiment, particularly the water level detection and the flow rate detection will be described in detail.

  FIG. 29 shows the cleaning means at the time of initial use in which cleaning water is not stored in the cleaning means, such as when the cleaning means is used for the first time after installation of the sanitary washing apparatus, or when reused after performing a drainage operation to prevent freezing. 3 shows a time chart of each function.

At a time point P1 when the washing switch (for example, the buttocks washing switch 221 or 410) of the operation unit 210 or the remote controller 400 is operated, the control unit 130 starts energizing the water stop solenoid valve 514 to start supplying the washing water. At the same time, the driving of the water level detection sensor 620 is started. The driving of the water level detection sensor 620 is continued until the end of the ass washing P7.

  When the water level detection sensor 620 detects the upper limit water level at P2, the control unit starts time measurement, and at a time point P3 when a predetermined time has elapsed, stops supplying electricity to the water stop solenoid valve 514 and stops supplying the wash water. In the present embodiment, the energization is stopped two seconds after the detection of the upper limit water level.

  At the time point P2 when the upper limit water level is detected, the sub tank 600 and the heat exchanger 700 are basically in a full state. Is surely filled with the washing water by the water pump 516.

  Thereby, since the air in the heat exchanger 700 can be removed and the washing water can be completely filled, the boil-off of the heat exchanger 700 can be reliably prevented, and the safety and durability are improved. can do. Further, by reliably supplying the washing water to the water pump 516, which is the variable water discharge amount means, to make the water full state, the water supply function of the water pump 516, which is the variable water discharge amount means, can be reliably started.

  The control unit 130 starts driving the water pump 516, which is a water discharge amount variable unit, at the time point P3 when the energization of the water stop electromagnetic valve 514 is stopped, and operates the flow control valve 517 to clean the bottom of the nozzle unit 820. The supply of the cleaning water to the channel 835 is started.

  By driving the water pump 516, which is a water discharge amount variable means, the water level of the sub tank 600 drops, and at the time point P4 when the detection of the upper limit water level is canceled by the water level detection sensor 620, the control unit 130 drives the heat exchanger 700. Start. By detecting a drop in the water level, it is possible to confirm that the water pump 516, which is the water discharge amount variable means, is operating normally, and to prevent an abnormal rise in the temperature of the heat exchanger 700.

  The washing water supplied to the buttocks washing channel 835 is jetted from the buttocks washing jet 834. The jetted cleaning water passes through the jet opening 844 and reflects on the inner surface of the holding portion 816 provided at the tip of the support portion 810, thereby cleaning the outer surface of the nozzle cover 840. This cleaning operation is called pre-cleaning. The pre-cleaning is continued until time point P5 two seconds after the outlet temperature of the heat exchanger 700 reaches 25 ° C.

  When the pre-cleaning is completed at time point P5, the control unit 130 starts driving the cleaning nozzle driving unit 860 of the nozzle device 800, and moves the nozzle unit 820 from the storage position to the buttocks cleaning position. During the movement from the storage position to the buttocks cleaning position, the flow control valve 517 is switched to supply cleaning water to the nozzle cleaning channel 839. The cleaning water supplied to the nozzle cleaning flow channel 839 is jetted from the nozzle cleaning jet port 838 into the inside of the nozzle cover 840, and the jetted cleaning water is used to wash the inner surface of the nozzle cover 840 and then drain the water from the drain port 845 to the outside of the nozzle cover 840. Leaked to In the meantime, the nozzle portion 820 is warmed by the washing water, and it is possible to suppress the feeling of discomfort due to the ejection of the cold water at the time of the ass washing performed later.

  At time point P6 when the nozzle unit 820 reaches the buttocks washing position, the control unit 130 switches the flow control valve 517 to start supplying the washing water to the buttocks washing channel 835. The washing water supplied to the buttocks washing channel 835 is spouted from the buttocks washing spout 834 and passes through the spout opening 844 to wash a local part of the user. The operation of washing the buttocks is continued until the time point P11 at which the operation of stopping the washing is performed.

  During the operation of the heat exchanger 700, the control unit 130 controls the washing water to a set temperature based on the detection data of the incoming water temperature sensor 630 and the outgoing water temperature sensor 730.

  As the driving of the water pump 516, which is the water discharge amount variable means, is continued, the water level of the sub tank 600 drops, and the control unit 130 energizes the water stop solenoid valve 514 at the point P7 when the water level detection sensor 620 detects the lower limit water level. And power supply is continued until time point P8 when the water level detection sensor 620 detects the upper limit water level.

  At the time point P8 when the upper limit water level is detected, the control unit 130 stops energizing the water stop solenoid valve 514 and starts time measurement, and then measures the elapsed time until the time point P9 when the water level detection sensor 620 detects the lower limit water level. I do. At the time point P9 when the lower limit water level is detected, the control unit 130 calculates the flow rate by calculating the measured elapsed time and the amount of water (65 cc) from the upper limit water level to the lower limit water level. If there is a difference from the flow rate set for each cleaning intensity at the calculation end time point P10, the output of the water pump 516, which is the water discharge amount variable means, is adjusted to correct the flow rate of the cleaning water.

  At the time point P11 when the operation to stop the washing is performed by the operation unit 210 or the remote controller 400, the power supply to the water pump 516, which is the water discharge amount variable unit, and the heat exchanger 700 is stopped, and the nozzle device 800 is moved to the washing nozzle driving unit. The drive of 860 is started, and the nozzle unit 820 moves backward from the buttocks washing position to the storage position.

  At the time point P12 when the nozzle unit 820 retreats to the storage position, the driving of the cleaning nozzle driving unit 860 of the nozzle device 800 is stopped, and the water pump 516 and the heat exchanger 700 as the water discharge amount variable unit are driven again, and the nozzle unit 820 After the cleaning is started, the drive of the water pump 516 and the heat exchanger 700, which is the water discharge amount variable means, is stopped at a time point P13 when a predetermined time has elapsed, and the post-cleaning ends.

  At the time point P13 when the post-washing of the nozzle portion 820 is completed, the water stop solenoid valve 514 is energized again, the washing water is supplied to the sub tank 600, and at the time point P14 when the upper limit water level is detected, the power supply to the water stop solenoid valve 514 is stopped. Then, a series of controls of the buttocks washing are completed, and the washing means enters a standby state with the sub tank 600 at the upper limit water level.

  FIG. 30 shows a time chart at the time of normal use when the washing operation is performed in the sanitary washing device in a standby state in which the initial use was previously performed.

  The major differences from the case of the initial use shown in FIG. 29 are that the sub tank 600 is already full at the time point P20 when the cleaning operation is performed, and that the control unit 130 stores that the initial use has been performed. is there.

  As shown in FIG. 30, in a standby state in which the sub tank 600 is full, at a time point P20 when the washing switch (for example, the butt washing switch 221 or 410) of the remote controller 400 is operated, the control unit 130 Then, the energization of the water stop solenoid valve 514 is started to start the supply of the wash water, and the energization of the heat exchanger 700 is simultaneously started based on the stored data on which the control of the initial operation has already been performed. Further, the pre-cleaning operation of the nozzle device 800 is started at the same time. Further, the driving of the water level detection sensor 620 is started at the same time.

  The control from the time when the cleaning operation is performed to the time when the energization of the heat exchanger 700 is started is different from that in the case of the initial use described above, and the control and the operation after the time P5 when the driving of the nozzle device 800 is started are different. The same is true.

As described above, the sanitary washing device in the present embodiment, in the configuration of the washing means, without separately providing a dedicated flow rate sensor for detecting the flow rate, detects a change in water level by a water level detection sensor provided in the sub tank, By adopting a configuration in which the flow rate is detected by calculation, the configuration of the cleaning unit can be simplified, and the cost can be reduced.

  In addition, by correcting the threshold value for determining the output voltage change between the electrodes in the water level detection based on the temperature, the accuracy of the water level detection and the flow rate detection can be improved, and water having different conductivity in a wide range can be washed in a sanitary washing device. It is possible to improve the range of use and usability of the sanitary washing device by being able to use it as washing water.

  In addition, during initial use of the sanitary washing device, water supply is continued for a predetermined time after the sub-tank is full, and after the water pump is driven, the water level detection sensor starts energizing the heat exchanger after the detection of the upper limit water level is canceled. By doing so, it is possible to prevent empty heating of the heat exchanger, and it is simpler and less expensive than means of preventing empty heating using a flow rate sensor that is generally implemented, and safety and reliability Can be secured.

<7> Control of spraying to inner surface of toilet bowl by spray nozzle and action operation FIG. 31 is a perspective view showing the appearance of the spray nozzle, FIG. 32 is a sectional view of the spray nozzle, and FIG. 33 is a sanitary washing device. It is a top view which shows the installation position of the spraying nozzle, and the rotation angle of the discharge port of a spraying nozzle in FIG. FIG. 34 is a chart showing the pump output and the rotation speed of the spray nozzle driving unit at the rotation angle of the discharge port of the spray nozzle.

  As shown in FIG. 32, the spray nozzle 550 has a rotating nozzle 550d rotatably shaft-sealed by O-rings 550e and 550f in a body 550c having an inlet flow path 550b by a spray nozzle driving unit 550a as a motor. Configuration. 550n is a shaft of a rotary driving body fitted to the rotary nozzle 550d.

  The cleaning water or the cleaning foam supplied from the inlet flow path 550b of the body 550c is discharged from the discharge port 550u through a plurality of inlet holes 550h opened around the rotary nozzle 550d.

  As shown in FIG. 33, the spray nozzle 550 is disposed on the right side of the center of the main body 200. This is because the spray nozzle 550 is arranged not on the center but on the left or right side of the body, because priority is given to arranging the buttocks washing nozzle 831 or the like for washing the human body part at the center.

  When the user enters the toilet, the control unit 130 of the sanitary washing device 100 detects the entry of a person by the human body detection sensor 450, starts the operation of the water pump 516 that is a water discharge amount variable unit, and opens and closes the open / close valve 530a. open.

  At this time, since the flow control valve 517 for switching the flow path to the buttocks cleaning nozzle 831, the bidet cleaning nozzle 832, the nozzle cleaning unit 833, and the like is in a closed state, the cleaning water from the heat exchanger 700 is supplied to the branch flow path 530 and the reverse flow path. Through the stop valve 531 and the foam tank 532, it is discharged from the spray nozzle 550 to the inner surface of the toilet.

  At that time, the control unit 130 drives the spray nozzle driving unit 550a of the spray nozzle 550, the direction of the discharge port 550u of the spray nozzle 550 is rotated, and the flush water or the cleaning foam discharged from the discharge port 550u causes A water film or a foam film is formed on the entire inner surface of the substrate.

  As shown in FIG. 33, the distance from the spray nozzle 550 to the inner surface of the toilet varies depending on the rotation angle direction of the discharge port 550u of the spray nozzle 550. The control unit 130 controls so as to change the output of the water pump 516, which is the water discharge amount varying means, according to the rotation angle of the discharge port 550u of the spray nozzle 550 as shown in FIG.

  In the sanitary washing device of the present embodiment, the direction of the discharge port 550u of the spray nozzle 550 is the longest to the inner surface of the toilet when the rotation angle is 160 °, and the direction to the inner surface of the toilet when the direction of the discharge port 550u is 340 °. Is the shortest. When the human body detection sensor 450 detects that the user enters the toilet, the control unit 130 outputs the output of the pump (the water pump 516, which is a variable water discharge amount means), according to the rotation angle of the discharge port 550u of the spray nozzle 550. It changes like 34.

  That is, when the rotation angle at which the distance from the discharge port 550u of the spray nozzle 550 to the inner surface of the toilet is farthest (longest) is around 160 °, the output of the pump becomes large, and the distance from the discharge port 550u to the inner surface of the toilet is the shortest. When the rotation angle near (short) is around 340 °, the amount (and the ejection speed) of the ejection from the outlet 550u is controlled so that the output of the pump becomes small.

  Therefore, when the flush water is discharged to the front of the toilet which is the farthest from the discharge port 550 u of the spray nozzle 550, the flush water is discharged with the strongest force and reaches the inner surface in front of the toilet, and the flush water 550 u of the spray nozzle 550. When flushing to the rear of the toilet, which is the closest distance from the toilet, the flushing water is discharged with the weakest force, so flushing water or cleaning foam is sprayed on the inside of the toilet without trouble such as splashing behind the toilet. The water can be discharged so that it can be thoroughly delivered, and a water film or a foam film can be formed up to the inner surface in front of the toilet, so that adhesion of dirt can be suppressed.

  As described above, the control unit 130 changes the output of the pump in accordance with the rotation angle of the discharge port 550u of the spray nozzle 550, so that the flush water or The cleaning foam can be discharged so as to reach the entire inner surface of the toilet, and a water film or a foam film can be formed up to the inner surface in front of the toilet to suppress the adhesion of dirt.

  The operation unit 210 or the remote controller 400 may be provided with a level changeover switch capable of adjusting the level (average level) of the pump output to be higher or lower. As a result, even if the size of the toilet is different, the flush water or foam can be discharged so as to reach the entire inner surface of the toilet, and a water film or a foam film is formed up to the inner surface in front of the toilet to suppress dirt adhesion. You can do it.

  In addition to the control unit 130 changing the output of the pump according to the rotation angle of the discharge port 550u of the spray nozzle 550, the control unit 130 controls the spray nozzle driving according to the rotation angle of the discharge port 550u of the spray nozzle 550. The speed of the unit 550a may be changed. By changing the output of the pump (water pump 516, which is a variable water discharge amount means), it is possible to change the momentum of the discharge and reach the far inner surface of the toilet, and to suppress spattering on the inner surface of the close toilet, By changing the speed of the spray nozzle driving unit 550a according to the rotation angle of the outlet 550u, the spray density can be made more uniform.

  That is, when the discharge port 550u of the spray nozzle 550 rotates at a constant rotation speed, the spray density becomes coarse at a place far from the inner surface of the toilet and the spray density becomes dense at a place far from the inner surface of the toilet. . By changing the output of the pump (water pump 516, which is a variable water discharge amount means), there is also an effect of equalizing the distribution of spraying, but more uniform by changing the speed of the spraying nozzle driving unit 550a according to the rotation angle. In other words, it is possible to discharge evenly on the inner surface of the toilet.

As shown in FIG. 34, the flushing water or flushing foam sprayed in front of the toilet is dispersed at a rotation angle of about 160 °, which is the farthest distance from the discharge port of the spraying nozzle, and the spray density is reduced. When discharged forward, the spray nozzle has the slowest rotational speed, which increases the spray density, and is discharged to the rear of the toilet bowl at a rotation angle of about 340 °, which is the closest distance from the discharge port of the spray nozzle. At this time, the spray nozzle 550 has the highest rotation speed and the spray density is reduced, so that the distribution of the wash water or the wash foam sprayed on the inner surface of the toilet bowl can be more uniform, and the adhesion of dirt can be suppressed.

  That is, the control unit 130 changes the speed of the spray nozzle driving unit 550a in accordance with the rotation angle of the spray port 550u of the spray nozzle 550, so that the direction of the spray port 550u of the spray nozzle 550 has a long distance to the inner surface of the toilet. By increasing the speed of the spray nozzle driving section 550a at a rotation angle in front of the toilet bowl and at a rear rotation angle of the toilet bowl where the distance to the inner surface of the toilet is short, the speed of the spray nozzle drive section 550a is small. On the other hand, even if the distance to the rear is different, flush water or foam can be uniformly discharged to the inner surface of the toilet, and a water film or a foam film is formed evenly to the inner surface in front of the toilet to remove dirt. Can be suppressed.

  After the control unit 130 detects the entry of a person by the human body detection sensor 450, when the spray nozzle 550 sprays wash water or wash foam on the inner surface of the toilet, the spray nozzle drive unit 550a rotates the rotary nozzle 550d twice to automatically spray. Stop. Thus, when the user enters the toilet room, a water film or a foam film can be formed on the inner surface of the toilet before use, and the adhesion of dirt can be suppressed. It should be noted that the configuration is not limited to two rotations as long as the configuration is such that spraying is performed only for a predetermined number of rotations or for a predetermined time and the spraying is stopped from the rotating discharge port 550u to the inner surface of the toilet and stopped.

  In addition, when the spray nozzle 550 sprays the washing water or the cleaning foam on the inner surface of the toilet, the spray nozzle driving unit 550a does not rotate the rotary nozzle 550d twice in one direction, as shown in FIG. The configuration may be such that the rotating nozzle 550d of the spray nozzle 550 is reciprocally rotated. Thus, as in a configuration in which the rotation nozzle 550d of the spray nozzle 550 rotates all the way in one of the right direction and the left direction, the spray direction of the washing water or the washing foam is not always the same direction but reciprocates. By rotating, spraying is performed from the opposite direction due to reciprocation, and spraying is performed in two directions by the forward and reverse rotations, so that a so-called spray-out portion can be reduced and spraying more easily can be performed. Time) can suppress the adhesion of dirt.

  In the chart of FIG. 34, the rotation angle is from 0 ° corresponding to the rear side of the toilet to a rotation angle of 340 ° and then temporarily stopped, and then stopped, and then stopped after a reciprocating rotation of reverse rotation from a rotation angle of 340 ° to a rotation angle of 0 °. Action is shown. The rotation nozzle 550d of the spray nozzle 550 is provided with a rotation restricting portion (not shown) whose rotatable range is restricted by a mechanical stopper from a rotation angle of 0 ° to a rotation angle of 340 °.

  The rotation restricting portion (not shown) is a spray nozzle driving portion 550a when a projection formed on a part of the outer periphery of the rotary nozzle 550d rotates with the rotary nozzle 550d and abuts against the rotation restricting wall of the body 550c. Even if the motor tries to rotate the rotary nozzle 550d, the rotary nozzle 550d cannot rotate because the motor slips and runs idle because it is in mechanical contact.

  As described above, by providing the rotation restricting unit (not shown) for restricting the rotation range and by making the spray nozzle 550 reciprocately rotate in the rotation range not restricted by the rotation restricting unit, the reciprocation from the opposite direction due to the reciprocation is performed. Spraying is performed and the spraying is performed from two directions by the forward and reverse rotations, so that the so-called sprayed-out portion can be reduced, and the spread can be more easily performed. .

Further, the spray nozzle driving unit 550a is constituted by a motor, and the origin of the rotation position of the spray nozzle driving unit can be recognized at the position where the rotation regulating unit abuts, and the rotation angle position and the rotation speed are highly accurate. Spraying with very little variation is possible.

  As described in the water circuit configuration according to FIG. 6, the branch flow path 530 of the wash water supply flow path 690, which is branched between the water pump 516 and the flow control valve 517, which is a water discharge amount variable means, is opened and closed. The washing water is supplied to the foam tank 532 via the valve 530a and the check valve 531 so as to be supplied with the washing water, and the spray nozzle 550 is connected downstream of the foam tank 532. A detergent tank 533 for supplying a detergent to the foam tank 532 and a detergent pump 534 are connected, and an air pump 535 for sending air to the foam tank 532 to produce a washing foam is provided.

  By the way, when the control unit 130 opens the on-off valve 530a, the washing water from the heat exchanger 700 is sent by the water pump 516, which is a means for varying the amount of discharged water, so that the washing water or the washing foam is discharged from the spray nozzle 550. You. At this time, the discharge amount and discharge force (discharge speed and discharge speed) of the cleaning water or the cleaning foam discharged from the spray nozzle 550 according to the increase and decrease of the outputs of the water pump (pump) 516 and the air pump 535 which are the water discharge amount variable means. Discharge pressure).

  Note that the configuration in which the on-off valve 530a is provided in the branch channel 530 may be a configuration in which a channel switching valve is provided in a branch portion between the branch channel 530 and the cleaning water supply channel 690.

  The user can select and instruct whether to spray the cleaning water or the cleaning foam from the spray nozzle 550 by using the operation unit 210 of the main body 200 or the remote controller 400. A cleaning tank is provided between the on-off valve 530a and the spray nozzle 550 to supply a detergent to generate cleaning foam, and the cleaning foam is discharged from the discharge port 550u of the spray nozzle 550 to the toilet inner surface. Instead of forming a mere water film by spraying water or warm water, a foam film is formed by cleaning bubbles containing a detergent, so that the effect of suppressing the adhesion of dirt can be further enhanced. Further, the foam film made of the cleaning foam containing the detergent can suppress an unpleasant odor and improve the comfort of a visually clean image.

  In the sanitary washing device of the present embodiment, the washing water or the washing foam is sprayed from the spray nozzle 550 to the inner surface of the toilet separately from the case where the human body detection sensor 450 detects the entry of a person into the operation unit 210 or the remote controller. By operating the spraying switch 417 of the controller 400, spraying can be performed. When dirt is concerned, a foam film made of a cleaning foam containing a detergent can be formed and cleaned.

  The user can arbitrarily select in advance whether to spray the washing water or the washing foam from the spray nozzle 550 to the inner surface of the toilet using the spray selection switch (not shown) of the operation unit 210 or the remote controller 400. be able to.

  When the spray foam is sprayed from the spray nozzle 550 to the inner surface of the toilet, the control unit 130 controls the air pump according to the rotation angle of the discharge port 550u of the spray nozzle 550 in the same manner as in the case of the pump output shown in FIG. By changing the output of 535, even if the distance to the front, side, and rear of the toilet is different, the cleaning foam can be discharged so as to reach the entire inner surface of the toilet, and a foam film is formed up to the inner surface in front of the toilet. Thus, adhesion of dirt can be suppressed.

That is, when the rotation angle at which the distance from the discharge port 550u of the spray nozzle 550 to the inner surface of the toilet is the longest is about 160 °, the output of the air pump 535 becomes large, and the air pressure by the air pump 535 becomes high. When the rotation angle at which the distance from the discharge port 550 u to the inner surface of the toilet is closest (short) is around 340 °, the output of the air pump 535 becomes small. As a result, the air pressure by the air pump 535 is reduced, and the action of blowing the cleaning foam is reduced, so that the cleaning foam can be uniformly discharged to the inner surface of the toilet.

  The control unit 130 further includes a dirt detecting means (not shown) for detecting dirt on the toilet with an image element or the like. The suppression effect can be improved. Other than the method of partially reciprocating the contaminated portion, the rotation speed when the discharge port 550u of the spray nozzle 550 rotates through the contaminated portion may be set to a low rotation speed or the pump output may be increased.

<8> Control of Spraying to Washing Nozzle by Spray Nozzle and Action of Operation The spraying nozzle 550 for discharging the cleaning foam to the surface of the washing nozzle is the spraying nozzle 550 for discharging the cleaning foam to the inner surface of the toilet described in <7> of the preceding section. Is shared. In addition, the foam generation unit 560 that generates the cleaning foam is also used in common.

  As described in <7> above, the discharging operation of the cleaning foam to the inner surface of the toilet by the spray nozzle 550 is performed when the user enters the toilet mainly by the discharging operation of the cleaning foam to the inner surface of the toilet by the spray nozzle 550. Then, the entry of a person is detected by the human body detection sensor 450 and is automatically sprayed. Separately, the spray can be sprayed by manually operating the spray switch 417 of the operation unit 210 or the remote controller 400, and a foam film made of a cleaning foam containing a detergent is formed whenever dirt is concerned. Can be clean.

  When the user manually operates the spray switch 417 of the operation unit 210 or the remote controller 400, the control unit 130 of the sanitary washing device 100 drives the cleaning nozzle driving unit 860 that drives the nozzle unit 820 of FIG. Then, as shown in FIG. 23, the tail cleaning jet 834 of the cleaning nozzle and the nozzle cover 840 are advanced.

  At the same time, the control unit 130 drives the spray nozzle driving unit 550a of the spray nozzle 550, and is rotationally driven so that the direction of the discharge port 550u of the spray nozzle 550 is directed to the cleaning nozzle that has advanced.

  Then, the control unit 130 starts the operation of the water pump 516, which is a water discharge amount variable unit, and opens the on-off valve 530a.

  At this time, since the flow control valve 517 for switching the flow path to the buttocks cleaning nozzle 831, the bidet cleaning nozzle 832, the nozzle cleaning unit 833, and the like is in a closed state, the cleaning water from the heat exchanger 700 is supplied to the branch flow path 530 and the reverse flow path. Through the stop valve 531 and the foam tank 532, the ink is discharged from the spray nozzle 550 toward the nozzle cover 840 which is the surface of the washing nozzle.

  At that time, the controller 130 stops the spray nozzle driving unit 550a at a position where the discharge port 550u of the spray nozzle 550 faces the cleaning nozzle as shown in FIG. The unit 860 performs reciprocating forward and backward driving.

  As described above, at the time of nozzle cleaning in which the cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle, the control unit 130 sets the spray nozzle driving unit 550a to the position where the discharge port 550u of the spray nozzle 550 faces the cleaning nozzle. The cleaning nozzle is driven back and forth by the cleaning nozzle drive unit 860 in a state where the cleaning nozzle is stopped, so that cleaning bubbles can be discharged over a wide area of the surface of the cleaning nozzle, and the wide area of the surface of the cleaning nozzle is cleaned. Thus, the adhesion of dirt can be suppressed.

Also, at the time of nozzle cleaning in which cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle, as shown in FIG. 36, the control unit 130 sprays the cleaning nozzle in a state where the cleaning nozzle is stopped at a position advanced to the vicinity of the human body cleaning position. The nozzle 550 may be configured to be driven to rotate reciprocally by the spray nozzle driving unit 550a. The spray nozzle 550 is reciprocally rotated by the spray nozzle driving unit 550a, so that the cleaning foam is sprayed over a wide area of the surface of the cleaning nozzle, and the wide area of the surface of the cleaning nozzle is cleaned to prevent the adhesion of dirt. .

  Furthermore, at the time of nozzle cleaning in which cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle, as shown in FIG. 37, the control unit 130 controls the spray nozzle driving unit 550a to set the discharge port 550u of the spray nozzle 550 to the cleaning nozzle. The cleaning nozzle may be driven to reciprocate forward and backward by the cleaning nozzle driving unit 860 in a state where the cleaning nozzle is driven to reciprocate around the position facing the direction.

  In this case, when the cleaning nozzle moves in the direction in which the cleaning nozzle advances by the cleaning nozzle driving unit 860, the location where the cleaning foam is discharged from the spray nozzle 550 moves from the tip of the cleaning nozzle to the base side. When the cleaning nozzle moves in the retreating direction, the location where the cleaning foam is discharged from the spray nozzle 550 moves from the root side to the tip of the cleaning nozzle, that is, the cleaning nozzle and the spray nozzle reciprocate in opposite directions to each other. By being driven, the cleaning bubbles are scattered over a wider area of the surface of the cleaning nozzle, and the wide area of the surface of the cleaning nozzle can be cleaned to suppress the adhesion of dirt.

As described above, when the user manually operates the spraying switch 417 of the operation unit 210 or the remote controller 400, the control unit 130 performs the cleaning of the cleaning nozzle with the cleaning foam for a predetermined time (for example, 10 minutes). Second) After the cleaning foam is sprayed on the surface of the cleaning nozzle, the discharge from the spray nozzle 550 is automatically stopped. Thereafter, the cleaning nozzle is retracted to the storage position as shown in FIG. 16 by the cleaning nozzle drive unit 860, and the cleaning bubbles are washed away with the cleaning water by the nozzle cleaning unit 833 described in “<5> Configuration of Nozzle Device”. And exit.
The cedar cleaning using the cleaning water is performed not by the nozzle cleaning unit 833 but by the cleaning nozzle that switches the cleaning foam discharged from the spray nozzle 550 to the cleaning water by stopping the driving of the detergent pump 534 of the foam generating unit 560 on the way. May be washed with cedar.

  Cleaning foam is sprayed from the spray nozzle 550 on the surface of the cleaning nozzle for cleaning the human body, and then the cleaning water is washed away by the Japanese cedar which is washed with the cleaning water after the cleaning nozzle is housed in the main body 200. There is no need to worry about splattering outside, and it is possible to wash the foam of the washing nozzle. This is because even if the cleaning foam is sprayed on the surface of the cleaning nozzle, it is foamy, so there is no risk of splashing due to rebound. Is performed at the position stored in the main body 200, so that there is no need to worry that the washing water scatters outside the toilet.

  In the sanitary washing device 100 of the present embodiment, the washing of the washing nozzle with the washing foam is performed not only when the user operates the operation unit 210 or the manual switch of the remote controller 400 but also when the user uses the toilet seat 300. After the user has been seated on the ass and cleaned the buttocks, the seating sensor 330 detects that the user has separated from the toilet seat, and then the cleaning nozzle automatically cleans the cleaning nozzle with the cleaning foam. (Not shown).

  This provides a clean and easy-to-use sanitary washing device in which the washing nozzle is automatically washed with the washing foam after leaving the toilet seat after the ass washing after the stool in which the washing nozzle is most likely to become dirty. Can be.

In addition, the control unit 130 controls the flow rate of the cleaning water from the spray nozzle 550 by the water pump 516 that is a water discharge amount variable unit when the cleaning water or the cleaning foam is discharged from the spray nozzle 550 toward the surface of the cleaning nozzle. Alternatively, the cleaning foam may be configured to be less than when the cleaning foam is discharged toward the inner surface of the toilet.

  The distance from the spray nozzle 550 to the washing nozzle when the washing water or the washing foam is discharged from the spray nozzle 550 to the surface of the washing nozzle is longer than the distance to the inner surface of the toilet bowl when the direction of the outlet 550u of the spray nozzle 550 is the same. Is also close. Furthermore, the surface area required for spraying on the washing nozzle is smaller than the surface area required for spraying on the inner surface of the toilet. From these, the flow rate of the wash water by the water pump 516 which is the water discharge amount variable means when the wash water or the wash foam is discharged from the spray nozzle 550 toward the surface of the wash nozzle, Even if the amount is smaller than when the liquid is discharged toward the inner surface of the toilet, it is possible to sufficiently suppress the adhesion of dirt. This makes it possible to suppress the contamination of the cleaning nozzle without wasting the cleaning water or the cleaning foam.

  As described above, the sanitary washing device 100 of the present embodiment includes the heat exchanger 700 for heating the washing water, the washing nozzle 831 for washing the human body, the washing nozzle driving unit 860 for driving the washing nozzle forward and backward, and the washing. A foam generation unit 560 for generating foam, a spray nozzle 550 for discharging washing water or cleaning foam on the inner surface of the toilet, a spray nozzle driving unit 550a for rotating and driving the direction of the discharge port 550u of the spray nozzle, and a water path to the spray nozzle. Opening / closing valve 530a that opens and closes, a control unit 130 that controls these operations, and an operation unit 210 that instructs and sets the control unit. The cleaning foam generated by the foam generation unit is sprayed from the spray nozzle to the surface of the cleaning nozzle. A water film or a foam film is formed on the inner surface of the toilet by the configuration of discharging to the inside of the toilet, so that the adhesion of dirt on the inner surface of the toilet can be suppressed. The nozzle 550, the cleaning foam is sprayed on the surface of the washing nozzle, the surface of the washing nozzle can be suppressed cleaned to soiling.

  As described above, the spray nozzle that discharges cleaning water or cleaning foam to the toilet bowl inner surface of the sanitary washing device according to the present invention discharges the cleaning foam generated in the foam generation unit from the spray nozzle to the surface of the cleaning nozzle. In addition, since it becomes possible to suppress the adhesion of dirt on the cleaning nozzle by the cleaning foam, the present invention can be applied to the application of water application equipment having another spray nozzle.

REFERENCE SIGNS LIST 100 Sanitary washing device 110 Toilet bowl 130 Control unit 200 Main body 201 Rear main body case 210 Operating unit 221 Butt washing switch 300 Toilet seat 320 Toilet lid 330 Seating sensor 400 Remote controller 401 Remote control main unit 410 Butt washing switch 411 Stop switch 413 Move cleaning switch 414 Rhythm cleaning switch 415 Cleaning strength switch 416 Cleaning position switch 417 Scattering switch 450 Human body detection sensor 500 Cleaning means 501 Chassis 501a Water pump installation section 502 Connection tube 510 Water supply port 511 Strainer 512 Check valve 513 Constant flow valve 514 water stop solenoid valve 515 relief valve 516 water pump (water discharge variable means)
516a Motor section 516b Link mechanism section 516c Piston section 516d Water intake port 516e Discharge port 517 Flow control valve 517a Valve body 517b Stepping motor 517c Water supply port 530 Branch flow path 530a Open / close valve 531 Check valve 532 Foam tank 533 Washing agent 533 Cleaning agent Air pump 550 Spray nozzle 550a Spray nozzle drive unit 550b Inlet flow path 550c Body 550d Rotary nozzle 550e O-ring 550f O-ring 550h Inlet hole 550n Shaft 550u Discharge port 560 Bubble generator 601 Water inlet 600 Sub tank 603 Atmospheric opening 610 Atmosphere opening Front tank 612 Rear tank 613 Open to atmosphere 614 Partition wall 615 Water tank 616 Storage tank 617 Barrier 618 Rectification rib 620 Water level detection Sensor 621 Common electrode 622 Water level electrode 623 Upper limit electrode 624 Lower limit electrode 630 Water temperature sensor 690 Washing water supply channel 700 Heat exchanger 701 Casing 702 Flat heater 703 Hot water outlet member 710 Front member 711 Water inlet 712 Water outlet 713 Water inlet channel 714 Slit 715 Heating channel 716 Partition rib 717 Water passage hole 718 Projection 720 Back member 730 Hot water temperature sensor 731 Excess temperature sensor 750 Buffer tank 800 Nozzle device 801 Nozzle lid 802 Connection tube 810 Support portion 811 Bottom portion 812 Sloping portion 813 Vertical side Part 814 Guide rail 815 Rack guide 816 Holding part 820 Nozzle part 830 Nozzle body 831 Butt washing nozzle (wash nozzle)
832 Bidet cleaning nozzle 833 Nozzle cleaning part 834 Butt cleaning spout 835 Butt cleaning flow path 835a Rectifying plate 836 Bidet cleaning spout 837 Bidet cleaning flow path 838 Nozzle cleaning spout 839 Nozzle cleaning flow path 840 Nozzle cover 841 Nozzle cover body 842 connecting member 843 connecting piece 843a connecting protrusion 844 ejection opening 845 drain port 850 connecting means 851 connecting receiving part 851a front concave part 851b rear concave part 860 cleaning nozzle driving part

Claims (4)

A heat exchanger for heating the washing water;
A cleaning nozzle for cleaning the human body,
A cleaning nozzle drive unit that drives the cleaning nozzle forward and backward,
A foam generating unit that generates a cleaning foam,
A spray nozzle that discharges washing water or washing foam on the inner surface of the toilet,
A water discharge amount varying unit that varies a flow rate of the wash water to be sent to the washing nozzle and the spray nozzle,
A spray nozzle driving unit that rotationally drives the direction of the discharge port of the spray nozzle,
An on-off valve for opening and closing a water channel to the spray nozzle,
A control unit for controlling these operations,
An operation unit configured to set and instruct the control unit;
With
The controller controls the spray nozzle driving unit such that a discharge port of the spray nozzle is directed toward the cleaning nozzle during nozzle cleaning in which cleaning water or a cleaning bubble is discharged from the spray nozzle to the surface of the cleaning nozzle. A sanitary washing device in which the washing nozzle is driven to reciprocate forward and backward by the washing nozzle drive unit in a state where the washing nozzle is driven to reciprocate around the position . A heat exchanger for heating the washing water;
A cleaning nozzle for cleaning the human body,
A cleaning nozzle drive unit that drives the cleaning nozzle forward and backward,
A foam generating unit that generates a cleaning foam,
A spray nozzle that discharges washing water or washing foam on the inner surface of the toilet,
A water discharge amount varying unit that varies a flow rate of the wash water to be sent to the washing nozzle and the spray nozzle,
A spray nozzle driving unit that rotationally drives the direction of the discharge port of the spray nozzle,
An on-off valve for opening and closing a water channel to the spray nozzle,
A control unit for controlling these operations,
An operation unit configured to set and instruct the control unit;
With
The control unit is configured to stop the cleaning nozzle at a position where the cleaning nozzle advances to a position near a human body cleaning position during nozzle cleaning in which cleaning water or cleaning foam is discharged from the spray nozzle to the surface of the cleaning nozzle. A sanitary washing device in which the spray nozzle drive unit drives the reciprocating rotation . The foam generating unit includes a foam tank in which the control unit opens the on-off valve to supply cleaning water from the heat exchanger by a water discharge amount variable unit, and a detergent that supplies a detergent in a detergent tank to the foam tank. A pump and an air pump for supplying air to the foam tank,
The sanitary washing device according to claim 1 or 2 , wherein washing water or washing foam in the foam tank is discharged from the spray nozzle. The control unit is configured to control the flow rate of the wash water by the water discharge amount variable unit when the wash water or the wash foam is discharged from the spray nozzle toward the surface of the wash nozzle, and to supply the wash water or the wash foam from the spray nozzle to the inner surface of the toilet. The sanitary washing device according to any one of claims 1 to 3 , wherein the sanitary washing device is less than when the liquid is ejected toward the water.

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