JP6467633B2 - Sanitary washing device - 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 apparatus, the washing nozzle is protruded from the storage position to the buttocks washing or bidet washing position, and washing water is discharged from the discharge port of the washing nozzle to wash the local part of the human body.

  In addition to the cleaning nozzle for cleaning the local part of the human body, a sanitary cleaning device has been proposed that includes a spray nozzle that injects foam onto the inner surface of the toilet before defecation and forms a foam film on the inner surface of the toilet (for example, a patent) Reference 1).

JP 2000-104319 A

  However, the conventional sanitary washing device automatically injects foam from the spray nozzle by detection at the detection unit that detects seating, forms a foam film on the inner surface of the toilet before defecation, and adheres to the inner surface of the toilet It is not enough to satisfy the various usages and requests of users, and there is still room for improvement from the viewpoint of the use value of a spray nozzle that discharges bubbles.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a sanitary cleaning device that can enable various uses of a spray nozzle that discharges cleaning bubbles according to the scene in which it is used. Is.

In order to solve the above-described conventional problems, a sanitary washing device of the present invention includes a toilet seat installed in a toilet bowl so as to be able to be tilted and tilted, a main body that supports the toilet seat so as to be tiltable, and a heat exchanger that heats washing water. A cleaning nozzle that cleans the human body, a foam generating unit that generates cleaning foam, a spray nozzle that discharges cleaning water or cleaning foam to the inner surface of the toilet, and a water discharge amount that varies the flow rate of the cleaning water that is sent to the spray nozzle Variable means, a spray nozzle drive unit that rotationally drives the direction of the discharge port of the spray nozzle, and an on-off valve that opens and closes a water channel to the spray nozzle
A control unit that controls these operations; and an operation unit that instructs and sets the control unit. The control unit detects a seating state on the toilet seat, and an open / closed state of the toilet seat and the toilet lid. The direction of the discharge port of the spray nozzle by the spray nozzle driving unit and the output of the water discharge amount varying means are changed according to the signal of the toilet seat opening / closing detection unit that detects the above.

Thus, for example, when spraying foam (hereinafter referred to as “cleaning foam”) from the spray nozzle in a state where the user is not seated, the control section sprays the cleaning foam around the entire inner surface of the toilet bowl. As described above, the direction of the discharge port of the spray nozzle is driven to rotate, and the water discharge amount varying means is controlled at a high output so that the cleaning foam reaches the vicinity of the rim of the toilet bowl.
In addition, when spraying the cleaning foam from the spray nozzle while the user is seated, the direction of the spray nozzle outlet is the rear of the toilet bowl so that the cleaning foam is sprayed only behind the inner surface of the toilet bowl by the control unit. Then, the water discharge amount variable means is controlled to discharge the cleaning bubbles with a low output. As a result, the cleaning foam is discharged toward the back of the inner surface of the toilet bowl with a weak momentum, and is sprayed to the rear of the inner surface of the toilet bowl without worrying that the cleaning foam scatters to the user.
In addition, when the user is not seated, as in the case of boys' urination, and when the toilet seat open / close detection unit signal is sprayed from the spray nozzle while the toilet seat is open, the control unit may After spraying to the position where the direction of the discharge port of the spray nozzle faces the toilet outlet so that it is sprayed in the direction of the toilet outlet, the water discharge amount variable means generates washing foam with a medium output. It is controlled to discharge.
In this way, the direction of the outlet of the spray nozzle by the spray nozzle drive unit and the control unit according to the signals of the seat detection unit that detects the seating state on the toilet seat and the toilet seat opening / closing detection unit that detects the opening / closing state of the toilet seat According to the configuration in which the output of the water discharge amount variable means is changed, it is possible to enable various uses of the spray nozzle that discharges the cleaning foam according to the scene in which the sanitary cleaning device is used.
Thereby, the control according to the scene is possible with an appropriate amount of foam, and the detergent can be saved.

  The sanitary washing device of the present invention can enable various uses of a spray nozzle that discharges washing bubbles according to the scene in which it is used.

The perspective view of the state which installed the sanitary washing apparatus in embodiment of this invention in the toilet bowl The perspective view of the state which removed the front main part case of the sanitary washing device The perspective view of the state which removed the front main part case and control part of the sanitary washing device The perspective view which shows the operation part upper surface of the sanitary washing apparatus Perspective view showing the external appearance of the remote controller Schematic diagram showing the configuration of the water circuit of the cleaning means of the sanitary cleaning device The perspective view which shows the decomposition | disassembly state of the water circuit of the sanitary washing apparatus The perspective view which shows the assembly state of the water circuit of the sanitary washing apparatus Perspective view showing the appearance of the sub tank Cross section of front view of sub tank Side view of sub tank A 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 Cross-sectional view of a water pump, which is a means for varying water discharge The perspective view which shows the external appearance of the accommodation state of a nozzle apparatus AA sectional view shown in FIG. Longitudinal sectional view of the nozzle device in the stowed state Detailed sectional view of part B shown in FIG. CC cross section shown in FIG. Cross-sectional view of the storage state of the nozzle device Detailed sectional view of part C shown in FIG. Longitudinal section showing the butt cleaning state of the nozzle device Detailed sectional view of part D shown in FIG. A longitudinal sectional view showing the bidet cleaning state of the nozzle device Detailed sectional view of part E shown in FIG. Cross-sectional view showing the bidet cleaning state of the nozzle device Detailed sectional view of part G shown in FIG. Time chart of cleaning means during initial use of the sanitary cleaning device Time chart of cleaning means during normal use of the sanitary cleaning device Perspective view showing the appearance of the spray nozzle Vertical section of the spray nozzle The top view which shows the installation position of the spray nozzle in the same sanitary washing device, and the rotation angle of the discharge port of the spray nozzle Chart showing pump output and rotation speed of spray nozzle driver at rotation angle of discharge port of spray nozzle Explanatory drawing which shows discharge operation to the toilet bowl inner surface by the spray nozzle Explanatory drawing which shows discharge operation to the toilet bowl inner surface by the spray nozzle

  A sanitary washing device according to a first aspect of the present invention includes a toilet seat that is installed in a toilet bowl so that it can be tilted, a main body that supports the toilet seat so that it can be tilted up and down, a heat exchanger that heats washing water, and a cleaning nozzle that cleans the human body A foam generating unit that generates cleaning foam, a spray nozzle that discharges cleaning water or cleaning foam to the inner surface of the toilet, a water discharge amount variable unit that varies a flow rate of cleaning water to be sent to the spray nozzle, and a spray nozzle A spray nozzle drive unit that rotationally drives the direction of the discharge port, an on-off valve that opens and closes a water channel to the spray nozzle, a control unit that controls these operations, and an operation unit that instructs and sets the control unit The control unit is configured to detect a discharge port of the spray nozzle by the spray nozzle driving unit according to signals from a seat detection unit that detects a seating state on the toilet seat and a toilet seat opening / closing detection unit that detects an open / closed state of the toilet seat. Direction and water discharge amount possible It is intended to vary the output means.

  This makes it possible to use the spray nozzle for discharging the cleaning foam in various ways depending on the situation where the sanitary cleaning device is used.

  According to a second aspect of the present invention, in particular, the foam generation unit according to the first aspect of the present invention includes a foam tank in which wash water from the heat exchanger is sent by means of a water discharge amount variable when the control unit opens the on-off valve, and a detergent in the detergent tank. It is good also as a structure provided with the detergent pump which supplies water to a foam tank, and the air pump which supplies air to a foam tank, and the washing water or washing foam of a foam tank is discharged from a spray nozzle.

  Thereby, not only water or warm water is discharged to the surface of the cleaning nozzle or the inner surface of the toilet bowl, but the cleaning foam including the detergent is discharged, thereby enhancing the cleaning effect and the effect of suppressing the adhesion of dirt. In addition, an unpleasant odor can be suppressed by the washing foam containing the detergent, and a visually clean and comfortable feeling can be improved.

  According to a third aspect of the present invention, in particular, the control unit of the first or second aspect of the invention distributes a bubble when a signal of the seating detection unit is in a non-sitting state and a signal of the toilet seat opening / closing detection unit is in a closed state of the toilet seat, It is good also as a structure by which the foam is discharged to the perimeter of the toilet bowl inner surface by controlling the water discharge amount variable means with a high output while driving the spray nozzle drive unit in the wide rotation angle range of the nozzle outlet.

  Thereby, it can discharge so that washing | cleaning foam may reach the wide range of the toilet bowl inner surface, a foam film can be formed in the wide range of the toilet bowl inner surface, and dirt adhesion can be suppressed.

  According to a fourth aspect of the present invention, in particular, the control unit according to the first or second aspect of the invention includes a spray nozzle when the signal of the seating detection unit is seated and the signal of the toilet seat opening / closing detection unit is closed and the foam spraying signal is input. After the spray nozzle drive unit is rotationally driven to a position where the direction of the discharge port is directed to the rear of the toilet bowl and stopped, the water discharge amount variable means may be controlled with a low output to discharge the washing bubbles to the rear of the toilet bowl.

  As a result, in the state where the user is seated on the toilet seat, the cleaning foam is discharged with a weak force toward the back of the toilet inner surface, so that the user can spray the cleaning foam without worrying about the scattering of the cleaning foam. It is possible to suppress the adhesion of dirt.

In the fifth aspect of the invention, in particular, the control unit of the first or second aspect of the invention is configured such that when the signal of the seating detection unit is in the non-sitting state and the signal of the toilet seat opening / closing detection unit is in the toilet seat open state, After the spray nozzle drive unit is rotationally driven to a position where the discharge port direction of the spray nozzle is directed to the toilet outlet, the water discharge amount variable means is controlled with a medium output, and the washing bubbles are removed from the toilet bowl. It is good also as a structure discharged toward a discharge port.

  As a result, when the user is not seated on the toilet seat as in men's urinals, and the toilet seat opening / closing detection unit signal is in the toilet seat open state, the washing foam is at a moderate momentum toward the toilet outlet. Since it is discharged, the draft surface at the upper part of the toilet outlet can be covered with the cleaning foam, so that it is possible to suppress unpleasant odor during urination and the adhesion of dirt near the draft surface of the toilet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

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

<1> Overall Configuration of Sanitary Washing Device As shown in FIG. 1, the sanitary washing device 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 components. 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 configuration side of the main body 200 of the sanitary washing apparatus 100 is the rear side, the installation side of the toilet seat 300 is the front side, the right side is the front side, the right side is the front side, and the left side is the front side. Explain the arrangement of elements.

  An operation unit 210 is integrally provided so as to protrude from a side portion of the main body 200, and a toilet seat 300 and a toilet lid 320 are attached to a front portion of the main body 200 through a toilet seat toilet lid rotation mechanism 360 so as to be freely opened and closed. . The toilet seat toilet lid rotation 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.

  In the state where the toilet lid 320 is opened as shown in FIG. 1, the toilet lid 320 stands up so as to be positioned 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 concealed. The toilet lid 320 is composed of a member made by molding a resin material, and has a double structure and a heat insulating structure using 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 is a seating detection unit that detects a human body seated 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 seated on the seating surface of the toilet seat 300 by opening and closing the switch by a weight change caused by the seating of the user 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, and a butt cleaning nozzle 831 that is a cleaning nozzle for cleaning a local part of the human body, and a spray that sprays cleaning water or cleaning foam on the inner surface of the toilet. A nozzle 550, a deodorizing device 120 that deodorizes odors during defecation, a control unit 130 that controls 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 unit 500, is installed in the central portion of the main body 200, and a spray nozzle 550 and a nozzle device 800 are disposed on the right side of the nozzle device 800. On the left side, a deodorizing device 120 is installed. On the left side, a toilet seat toilet lid rotation mechanism 360 that opens and closes 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 electromagnetic valve 514 of the cleaning means 500, a sub tank 600, and the like are installed in the front, and a heat exchanger 700 is installed in the rear thereof. Behind the heat exchanger 700, a water pump 516 serving as a water discharge amount variable means is installed. Further, as shown in FIG. 2, a control unit 130 is installed above the cleaning unit 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 and indicator lamps 240 for operating and setting each function of the sanitary washing device 100. Is installed.

  An operation board (not shown) is installed inside the operation unit 210. A plurality of tact switches and a plurality of LEDs are installed on the operation board, and the tact switch can be pressed and the LEDs can be visually recognized via a switch nameplate attached to the upper surface of the operation unit 210.

  In addition, an infrared receiving unit 211 that receives infrared signals 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 in the operation unit 210 are provided with a plurality of operation switches 220 for operating the cleaning operation and a plurality of setting switches 230 for setting various functions. Further, as the indicator lamp 240, a plurality of LEDs for displaying the setting state are installed.

  As the operation switch 220, there are provided a buttocks cleaning switch 221 that is used as an auxiliary when the battery of the remote controller 400 is dead or broken, and a nozzle cleaning switch 222 that is operated when cleaning the nozzle.

  The setting switch 230 includes a hot water temperature switch 231 that sets the temperature of the washing water, a toilet seat temperature switch 232 that sets the temperature of the toilet seat, and an 8-hour switch that stops the temperature of the toilet seat 300 for eight hours after the setting. 233, a power saving switch 234 that automatically learns a time zone when the sanitary washing device 100 is not used, and lowers the temperature of the toilet seat 300 during a time period when it is not used, and an automatic operation of the toilet seat 300 and the toilet lid 320 A toilet lid automatic opening / closing switch 235 and the like for setting an opening / closing operation are provided.

  Many operations of the sanitary washing apparatus 100 are performed by a remote controller 400 configured separately from the main body 200. The remote controller 400 is attached to a wall surface of a toilet room that is easy for a user who is seated on the toilet seat 300 to 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 indicator lamps are installed on the upper surface and the front surface of a box-shaped remote control body 401 molded from a resin material. . In addition, the remote controller main body 401 is provided with a transmission unit 402 that transmits an operation signal of the remote controller 400 to the main body 200 by infrared rays at an upper corner.

  Inside 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) as a power source of the remote controller 400 are built.

  At the center of the front surface of the remote control main body 401, an ass washing switch 410 for starting ass washing, a bidet washing switch 411 for starting bidet washing for washing women's local washing, and ass washing and bidet washing are stopped. Stop switch 412, move cleaning switch 413 that periodically moves the cleaning position back and forth during buttocks cleaning and bidet cleaning, and cleaning strength periodically during buttocks cleaning A rhythm washing switch 414 is arranged.

  On the front upper part, the cleaning strength switch 415 that adjusts the cleaning strength during butt cleaning and bidet cleaning with two switches, and the cleaning position that adjusts the cleaning position during butt cleaning and bidet cleaning with two switches A position switch 416 and a spraying switch 417 for discharging cleaning water or cleaning foam from the spraying nozzle 550 and spraying it on the inner surface of the toilet bowl or the surface of the cleaning nozzle are arranged.

  Also, above the cleaning strength switch 415, an LED intensity indicator 421 that displays the cleaning strength in five levels, and above the cleaning position switch 416, a position indicator that displays the cleaning position in five levels. 422 is arranged.

  On the upper surface of the remote control main body 401, a toilet lid switch 418 that electrically opens and closes the toilet lid and a toilet seat switch 419 that electrically opens and closes the toilet seat are installed, and the user arbitrarily selects the toilet seat 300 and the toilet lid 320 by the switch operation. Can be opened and closed. Incidentally, the open state of the toilet seat 300 is a state in which the toilet seat 300 is erected substantially vertically as in a men's urination, and the closed state of the toilet seat 300 is that the toilet seat 300 is in the upper surface of the toilet 110. It is in a state of being approximately parallel to. Note that whether the toilet seat is in an open state or a closed state can be detected by a signal from a toilet seat opening / closing sensor 331 that is a toilet seat opening / closing detection unit.

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

<2> Water Circuit Configuration of Sanitary Cleaning Device FIG. 6 is a schematic diagram showing a water circuit configuration of the sanitary cleaning device.

  The main body 200 includes a cleaning unit 500 that cleans a user's local area. The cleaning means 500 is formed by a nozzle device 800 that ejects cleaning water and a series of cleaning water supply passages that supply the cleaning water from the water supply connection port 510 to the nozzle device 800.

  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 electromagnetic valve 514, a relief valve 515, and a sub tank 600. A heat exchanger 700, a buffer tank 750, a water pump 516 that is a water discharge amount varying means, and a flow control 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 below the right side of the main body 200, and a strainer 511 that prevents inflow of waste contained in tap water is stored inside the water supply connection port 510 and stored in the sub tank 600. A check valve 512 is incorporated to prevent the discharged water from flowing back into the water pipe.

  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 configured. ing.

  Downstream of the water stop solenoid valve 514, a sub tank 600 having an air release port, a heat exchanger 700 that instantaneously heats wash water, and a buffer tank that makes the temperature of the hot water heated by the heat exchanger 700 uniform. 750 is connected.

  A water pump 516 serving as a water discharge amount variable means is connected downstream of the buffer tank 750. A nozzle device 800 is connected to the downstream of a water pump 516 that is a water discharge amount varying means via a flow control valve 517, and each port of the flow control valve 517 has a butt cleaning nozzle 831 of the nozzle device 800, A bidet cleaning nozzle 832 and a nozzle cleaning unit 833 are connected.

  The branch flow path 530 branched between the water pump 516 serving as the water discharge amount variable means and the flow control valve 517 of the wash water supply flow path 690 supplies the wash water to the foam tank 532 via the check valve 531. The spray nozzle 550 is connected downstream of the foam tank 532. A detergent tank 533 that supplies detergent to the foam tank 532 and a detergent pump 534 are connected, and an air pump 535 that feeds air into the foam tank 532 and creates washing foam is provided.

  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 electromagnetic valve 514, the relief valve 515, the sub tank 600 The heat exchanger 700, the buffer tank 750, and the water pump 516 serving as the water discharge amount variable means are integrated into the chassis 501 molded from a resin material, and are integrally formed, and are assembled to the rear body case 201 of the 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 water stop electromagnetic valve 514. The buffer tank 750 is integrated with the heat exchanger 700.

  The water supply connection port 510 and the water stop electromagnetic valve 514, the water stop electromagnetic valve 514 and the sub tank 600, the sub tank 600 and the heat exchanger 700 are not connected to each other through the connection tube or the like, and the mutual connection ports are connected via an O-ring which is a packing. It is configured to connect directly. Further, the members constituting these water circuits are installed and fixed at predetermined positions of the chassis 501.

  By adopting such a configuration, it is possible to improve the watertight structure and improve the arrangement accuracy of the members. In particular, by improving the placement accuracy of the sub-tank 600 and the heat exchanger 700, the control accuracy of the flow rate of the cleaning water can be improved, and the performance of the cleaning means 500 and the control accuracy 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, A link mechanism 516b that converts the rotational motion of the motor into a reciprocating motion, and a piston 516c that is driven by the reciprocating motion of the link mechanism 516b. A water suction port 516d and a discharge port 516e are provided as connection ports on the outer surface of the piston portion 516c.

  When the water pump 516 which is the water discharge amount variable means having the above-described configuration is driven, the motor unit 516a having only the rotational motion generates less vibration than the link mechanism portion 516b and the piston portion 516c that reciprocate. Yes.

By driving the motor unit 516a, the piston unit 516c starts reciprocating, sucks cleaning water from the water suction port 516d, and discharges cleaning water from the discharge port 516e. The cleaning water to be discharged is the piston unit 516c. It becomes a water flow with moderate pulsation with the reciprocating motion.

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

  The water pump installation part 501a is formed with a thin wall thickness, and is formed on an upper part of a rib-like leg part 501b that stands up from the bottom surface of the chassis 501. By forming it with a thin wall thickness, it is possible to obtain an effect of absorbing the vibration of the water pump 516 that is the water discharge amount varying means by the elasticity of the resin.

  Further, a hot water outlet 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 the 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 unit 516a with less vibration is installed in the water pump installation unit 501a formed with a thin thickness of the chassis 501 via the buffer member, and the link mechanism unit 516b and the piston unit 516c that generate a lot of vibrations. 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 vibrations generated when the water pump 516 serving as the water discharge amount variable means is driven can be reduced. It becomes possible to suppress the transmission to the member and the main body 200, 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 water discharge amount variable means, is supported through two different materials, a foamed resin cushioning member and an elastic resin that forms the water pump installation portion 501a. Frequency vibration is absorbed, and transmission of 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 in the lateral direction of the sub-tank, and FIG. 11 is a cross-sectional view in the front-rear direction of the sub-tank. .

  As shown in FIG. 9, the sub-tank 600 includes a tank main body 610 formed of a resin material, a water level detection sensor 620 that detects the level of the cleaning water stored in the tank main body 610, and the cleaning supplied to the tank main body 610. It is comprised with the incoming water temperature sensor 630 which consists of thermistors which are the water temperature detection means which detects the temperature of water.

  The tank body 610 includes a front tank 611 that constitutes the front wall, both side walls, the bottom surface, and the top surface of the tank, a rear tank 612 that constitutes the rear wall of the tank, and an air release portion disposed on the top surface of the tank body 610. 613 and three members. The overall shape of the tank 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 the shape in plan view is a substantially square shape. The front wall has an inclined part that retreats from the middle, the side view shape is formed in a substantially trapezoidal shape in which the upper part is thinner than the lower part, and the cross-sectional area of the upper part of the tank body 610 is smaller than the lower part. .

A water inlet 601 is provided at the lower part of one side wall of the tank main body 610, and a water outlet 602 is provided at the lower rear wall of the tank main body 610. The tank main body 610 is disposed on the top surface of the tank main body 610. An air opening 603 that communicates the inside and the outside of 610 is provided. By providing the air opening 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 atmospheric pressure.

  Since the inside of the sub tank 600 is always maintained at 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 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 part 613a having a large cross-sectional area of the flow path is formed in the flow path communicating with the open air opening 603 of the open air part 613, so that the washing water is likely to flow out from the open air opening 603 with bubbles. In such a case, the cleaning water is temporarily stored in the buffer unit 613a, thereby having a function of suppressing outflow from the atmosphere opening port 603.

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

  By providing the partition wall 614 and forming the water tank 615 and the storage tank 616, when air is contained in the wash water flowing from the water inlet 601, the air opens from the upper part of the water inlet 615 to the atmosphere opening port 603. Since it passes through and is discharged to the outside, only cleaning water that does not contain 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 613 and protrudes in a substantially horizontal direction 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.

  In addition, a plurality of rectifying ribs 618 protruding alternately in a substantially horizontal direction are formed on the side wall and the partition wall 614 of the tank body 610 inside the water tank 615.

  The wash water flowing in 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 flow direction at the rectifying rib 618. At this time, when the pressure of the washing water flowing in from the water inlet 601 is high, or when the flow is significantly disturbed including a large amount of air, the flow is appropriately rectified by the rectifying rib 618 and the flow of the rectifying rib 618 is increased. Air contained in the wash water is separated by vortices generated on the downstream side.

  The wash water from which the air rising in the water tank 615 is separated passes over the upper end of the partition wall 614 and flows into the storage tank 616 to be stored.

  At this time, even if the pressure of the cleaning water flowing in from the water inlet 601 is high or the flow is significantly disturbed including a large amount of air, the upward flow of the cleaning water is suppressed by the barrier 617, and the cleaning water Directly hitting the atmosphere opening portion 613 and preventing the sub tank 600 from flowing out from the atmosphere opening port 603 is prevented.

  As described above, the wash water flowing in from the water inlet 601 is separated from the air contained in the wash water while rising in the water inlet tank 615, and the separated air is released from the atmosphere opening 603 to the outside of the tank body 610. The Wash water that does not contain air is stored in the storage tank 616 and 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,
When bubbles are generated in the heat exchanger 700, the temperature inside the heat exchanger 700 may rise abnormally and the heat exchanger 700 may be damaged, and a partition wall 614 is provided to prevent air from entering. Thus, the effect of preventing damage to the heat exchanger 700 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 installed for each water level. In the present embodiment, one common electrode 621 and two water levels are provided. An electrode 622 is used.

  A common electrode 621 is disposed on the inner surface of the lower front wall of the tank body 610, and a water level electrode 622 is disposed on the inner surface of the rear wall of the tank body 610. The water level electrode 622 includes an upper limit electrode 623 provided at the upper portion and a lower limit electrode 624 provided at the lower portion. The common electrode 621 is installed 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 limit electrode 623 and the lower limit electrode 624 which are the water level electrodes 622 on different surfaces, it is possible to prevent the residual water adhering to the inner surface of the tank body 610 from being erroneously detected as stored water. Can be obtained.

  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 wash 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 submerged, the voltage between the common electrode 621, the lower limit electrode 624 and the upper limit electrode 623 decreases, thereby causing the control unit 130. Detects the water level.

  The upper limit electrode 623 is used for detecting the upper limit water level, and the lower limit electrode 624 is used for detecting the lower limit water level. The upper limit electrode 623 is installed at a position lower than the atmosphere opening port 603, thereby preventing washing water from flowing out from the atmosphere opening port 603. In addition, the lower limit electrode 624 is installed above the water outlet 602, so that air can be prevented 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 in the present embodiment, a buffer tank 750 is integrally formed, and the buffer tank 750 is installed on the top of the heat exchanger 700.

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

  The casing 701 is composed of a front member 710 constituting the front part and a rear member 720 constituting the back part, and a flat heater 702 is installed in a space formed between the front member 710 and the back member 720. Yes. A gap formed in the facing portion between the front member 710 and the flat heater 702 and the facing portion between the back member 720 and the flat heater 702 is used as a heating channel 715, and the washing water flowing through the heating channel 715 is used as the flat heater. In 702, the temperature is instantaneously increased.

  The heat exchanger 700 includes a water inlet 711 that is a connection port on the right side of the front lower end of the front member 710, and a hot water outlet 712 that is a connection port on the hot water outlet member 703 installed at 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 portion of the casing 701. A plurality of slits 714 are provided across the entire width of the upper surface of the water inlet channel 713, and the cleaning water that has flowed into the water inlet channel 713 passes through the slit 714 and flows into the heating channel 715. The slits 714 allow the cleaning water to flow evenly over the entire width of the heating channel 715.

  A partition rib 716 is provided at the upper end of the heating channel 715, and a buffer tank 750 is located 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 by the heating flow path 715 flows into the buffer tank 750 through the water passage holes 717. ing.

  Protrusions 718 having a substantially semicircular cross-sectional shape are provided in the buffer tank 750 at intervals over substantially the entire width. The washing water flowing in the buffer tank 750 toward the hot water outlet 712 is disturbed by the projection 718, so that the washing water is mixed and the temperature variation of the washing water is eliminated, and the washing water having a uniform temperature is produced. The hot water is discharged from the gate 712.

  Two thermistors are installed in the hot water outlet member 703, one is a hot water temperature sensor 730 that detects the hot water temperature of the wash water, and the other is an excessive temperature sensor 731 that detects the excessive temperature of the heat exchanger 700. It is.

<5> Configuration of Nozzle Device FIG. 16 is a perspective view showing a storage state of the nozzle device in the present embodiment, FIG. 17 is a cross-sectional view taken along line AA shown in FIG. 16, and FIG. FIG. 19 is a detailed cross-sectional view of a portion B shown in FIG. 18, FIG. 20 is a CC cross-sectional view shown in FIG. 19, and FIG. 21 is a cross-sectional view of the storage state of the nozzle device. FIG. 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 of cleaning the bottom of the nozzle device, and FIG. 24 is a detailed cross-sectional view of a D portion shown in FIG. 25 is a longitudinal sectional view showing the bidet cleaning state of the nozzle device, FIG. 26 is a detailed sectional view of the 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 the forward and backward movement of the nozzle portion 820. And a flow control valve 517 for switching supply of cleaning water to the nozzle unit 820.

  In the present embodiment, the arrangement direction of each component is described with the storage direction of the nozzle portion as the rear, the advance direction of the nozzle portion 820 as the front, the right side from the rear toward the front, the right side as the left side, and the left side as the left side. To do.

  The support part 810 is formed in a substantially triangular frame shape when viewed from the side, and an inclined part 812 that descends from the rear part toward the front part with respect to the substantially horizontal base part 811, and rear ends of the base part 811 and the inclined part 812. A vertical side 813 is formed to join the two. The inclined portion 812 is formed with a guide rail 814 for guiding the forward and backward movement of the nozzle portion 820 and a rack guide 815 for guiding the flexible rack 861 of the cleaning nozzle driving portion 860 over substantially the entire length. A substantially cylindrical holding portion 816 that supports the nozzle portion 820 so as to surround the nozzle portion 820 is integrally formed below the front end of the inclined portion 812.

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

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

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

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

  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 ejected from the nozzle portion 820 and the inner peripheral surface of the holding portion 816 and the nozzle The nozzle portion 820 is cleaned by flowing into a gap formed between the outer peripheral surface of the portion 820 and the outer peripheral surface of the nozzle portion 820.

  In addition, a nozzle lid 801 that opens and closes by the forward and backward movement of the nozzle portion 820 is provided in front of the holding portion 816 so that the nozzle portion 820 is closed when the nozzle portion 820 is housed. It becomes the structure which prevents being contaminated by etc.

  A water supply joint that connects a water supply tube (not shown) connected to the cleaning water supply means and a connection tube 802 that supplies cleaning water from the support portion 810 to the flow control valve 517 is connected to the bottom portion 811 of the support portion 810. 817 is formed.

  The nozzle portion 820 includes a rod-shaped nozzle body 830 molded from a resin material, a cylindrical nozzle cover 840 that covers substantially the entire nozzle body 830, and a connecting unit 850 that pulls the nozzle cover 840 with the nozzle body 830. Has been.

  The nozzle body 830 includes a butt cleaning nozzle 831 for cleaning the local part, a bidet cleaning nozzle 832 for cleaning the female local part, and a nozzle cleaning part 833 for cleaning the nozzle part 820.

  The buttocks cleaning nozzle 831 includes an buttocks cleaning outlet 834 that opens upward at the tip of the nozzle body 830 and an buttocks cleaning channel 835 that communicates from the rear end of the nozzle body 830 to the buttocks cleaning outlet 834. Has been. The buttocks washing flow path 835 is installed in the lower part of the nozzle body 830, and is bent upward and below the buttocks washing ejection port 834. The baffle has a rectifying plate 835a that rectifies the flow of washing water. Is installed. The washing water ejected from the butt washing ejection port 834 passes through the ejection opening 844 of the nozzle cover 840 and is ejected upward.

The bidet cleaning nozzle 832 includes a bidet cleaning outlet 836 disposed behind the butt cleaning outlet 834 and a bidet cleaning flow path 83 communicating with the bidet cleaning outlet 836 from the rear end of the nozzle body 830.
7. The washing water ejected from the bidet washing outlet 836 passes through the ejection opening 844 of the nozzle cover 840 and is ejected upward.

  The nozzle cleaning unit 833 includes a nozzle cleaning ejection port 838 disposed on the side surface of the nozzle body 830 and a nozzle cleaning channel 839 that communicates with the nozzle cleaning ejection port 838 from the rear end of the nozzle body 830. The washing water ejected from the nozzle cleaning ejection port 838 is ejected into the nozzle cover 840 and discharged from the drain port 845 of the nozzle cover 840 to the outside of the nozzle cover 840. The washing water ejected from the nozzle cleaning jet outlet 838 is used for cleaning the nozzle portion 820 and its surroundings.

  The nozzle part 820 is supported in a state where the front part is inserted in the holding part 816 of the support part 810, and the rear part is slidably installed in a state where it is suspended on the guide rail 814, as shown in FIG. The storage position where the nozzle part 820 is stored behind the holding part 816, as shown in FIG. 23, the buttocks washing position where the nozzle part 820 protrudes from the holding part 816, and the bidet cleaning position shown in FIG. It is possible to advance and retreat between.

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

  In addition, a nozzle cover stopper that regulates the sliding range of the nozzle cover 840 is integrally formed on the right side of the rear end of the connecting member 842. The front stopper receiving portion and the rear stopper receiving portion formed on the support portion 810 are integrally formed. The sliding range is restricted by the contact.

  A part of the connecting member 842 is fixed and integrated in a state of 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 so that the bottom cleaning jet 834 and the bidet cleaning jet 836 of the nozzle main body 830 can face each other. Further, a drain outlet 845 is provided on the front lower surface of the nozzle cover main body 841 to discharge cleaning water that has flowed into the nozzle cover main body 841 to the outside.

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

  A flow control valve 517 is installed on the rear end surface of the nozzle body 830. The flow control valve 517 includes a disc-type valve main body 517a and a stepping motor 517b that drives 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.

  Further, a water supply port 517c for supplying cleaning water to the flow control valve 517 is installed on the outer surface of the valve main body 517a of the flow control valve 517, and the connection tube 802 communicating with the water supply joint 817 of the support portion 810 is installed in the water supply port 517c. Are joined.

  Next, the connection means 850 configured by the connection member 842 of the nozzle cover 840 and the connection 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 outer periphery of the rear end portion 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 intervals in the front-rear direction. The distance between the front recessed part 851a and the rear recessed part 851b is the same as the distance between the buttocks cleaning jet 834 and the bidet cleaning jet 836.

  On the other hand, the connecting member 842 of the nozzle cover 840 is formed of a substantially cylindrical resin material, and a connecting piece 843 protruding rearward is formed on both sides of the rear part, and the rear end of the connecting piece 843 is inwardly provided. A protruding substantially V-shaped connecting protrusion 843a is formed.

  In a state where the nozzle body 830 is inserted into the nozzle cover 840, the connection protrusion 843a is always pressed against the connection receiving portion 851 of the nozzle body 830 by the elasticity of the connection member 842 of the nozzle cover 840, and the connection protrusion 843a is In a state where the front concave portion 851a or the rear concave portion 851b is engaged, the nozzle main body 830 and the nozzle cover 840 are connected, and the nozzle cover 840 can be pulled and moved by the nozzle main body 830.

  As shown in FIG. 22, in a state where the connecting projection 843 a enters the front recess 851 a, the bidet cleaning outlet 836 of the nozzle body 830 and the outlet opening 844 of the nozzle cover 840 face each other as shown in FIG. 26. As shown in FIG. 28, in the state where the connecting projection 843a enters the rear recessed portion 851b, as shown in FIGS. 19 and 24, the buttocks cleaning jet outlet 834 and the jet opening 844 face each other. .

<6> Control of Cleaning Means and Operational Operation FIG. 29 shows a time chart of the cleaning means during initial use, and FIG. 30 shows a time chart of the cleaning means during normal use.

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

  The wash water supplied to the sub tank 600 is stored in the sub tank 600 and also supplied to the heat exchanger 700 and the water pump 516 which is a water discharge amount varying means. By driving a water pump 516 that is a water discharge amount variable means, the wash water is supplied to the nozzle device 800 via the flow control valve 517. The driving of the water pump 516 which is a water discharge amount varying means is controlled by the control unit 130 based on the operation 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 varying means, starts energization of the flat plate heater 702 of the heat exchanger 700, and starts heating the cleaning water.

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

  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, and the cleaning water is supplied to any of the bottom cleaning nozzle 831, the bidet cleaning nozzle 832, and the nozzle cleaning unit 833 of the nozzle device 800. Supply. Accordingly, the cleaning water is ejected from any one of the buttocks cleaning outlet 834, the bidet cleaning outlet 836, and the nozzle cleaning outlet 838.

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

  FIG. 29 shows the cleaning means in the initial use in which the cleaning water is not stored in the cleaning means, such as when it is used for the first time after installation of the sanitary cleaning device, or when it is reused after performing a draining operation to prevent freezing. The time chart of each function of is shown.

  At the time P1 when the cleaning switch (for example, the buttocks cleaning 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 electromagnetic valve 514 and starts supplying cleaning water. At the same time, driving of the water level detection sensor 620 is started. The driving of the water level detection sensor 620 is continued until the buttocks cleaning stop P7.

  When the water level detection sensor 620 detects the upper limit water level at P2, the control unit starts measuring time and stops supplying the washing water by stopping energization of the water stop electromagnetic valve 514 at a time P3 when a predetermined time has elapsed. In the present embodiment, energization is stopped 2 seconds after the upper limit water level is detected.

  At the time point P2 when the upper limit water level is detected, the sub-tank 600 and the heat exchanger 700 are basically full of water, but the heat exchanger 700 and the water discharge amount variable means are maintained by continuing the supply for an extra 2 seconds. The water pump 516 is surely filled with the washing water.

  As a result, the air in the heat exchanger 700 can be eliminated and the washing water can be filled with water, so that the heat exchanger 700 can be reliably prevented from being blown, and safety and durability are improved. can do. Moreover, the water supply function of the water pump 516 which is a water discharge amount variable means can be reliably started by surely supplying wash water to the water pump 516 which is a water discharge amount variable means so as to be full.

  The control unit 130 starts driving the water pump 516 that is the water discharge amount varying means at the time 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. Supply of washing 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 is lowered, and at the time 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 the decrease in the water level, it is possible to confirm that the water pump 516 as the water discharge amount variable means is operating normally, and to prevent an abnormal temperature rise of the heat exchanger 700 and the like.

  The cleaning water supplied to the buttocks cleaning channel 835 is ejected from the buttocks cleaning jet outlet 834. The jetted cleaning water passes through the jet opening 844 and is reflected on the inner surface of the holding portion 816 provided at the tip of the support portion 810 to clean the outer surface of the nozzle cover 840. This cleaning operation is called pre-cleaning. The pre-cleaning is continued until time point P5, which is 2 seconds after the hot water temperature of the heat exchanger 700 reaches 25 ° C.

  When the pre-cleaning is completed at time 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 flow path 839. The cleaning water supplied to the nozzle cleaning flow path 839 is jetted into the nozzle cover 840 from the nozzle cleaning jet port 838, and the jetted cleaning water cleans the inner surface of the nozzle cover 840 and then the drain port 845 to the outside of the nozzle cover 840. To leak. In the meantime, the nozzle part 820 is warmed by the washing water, and it is possible to suppress the feeling of discomfort due to the cold water being ejected during the hip cleaning performed later.

  At time P6 when the nozzle unit 820 reaches the buttocks cleaning position, the control unit 130 switches the flow control valve 517 and starts supplying cleaning water to the buttocks cleaning channel 835. The cleaning water supplied to the buttocks cleaning flow path 835 is ejected from the buttocks cleaning outlet 834 and passes through the ejection opening 844 to clean the user's local area. The buttocks cleaning operation is continued until a time point P11 at which the cleaning stop operation is performed.

  While the heat exchanger 700 is being driven, the control unit 130 controls the wash water to a set temperature based on the detection data of the incoming water temperature sensor 630 and the hot water temperature sensor 730.

  By continuing to drive the water pump 516 that is the water discharge amount varying means, the water level of the sub tank 600 is lowered, and the control unit 130 energizes the water stop solenoid valve 514 at the time P7 when the water level detection sensor 620 detects the lower limit water level. And the energization is continued until time point P8 when the water level detection sensor 620 detects the upper limit water level.

  At time P8 when the upper limit water level is detected, the control unit 130 stops energization of the water stop solenoid valve 514 and starts measuring time, and then measures the elapsed time until time P9 when the water level detection sensor 620 detects the lower limit water level. To do. At time 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 strength at the calculation end point P10, the output of the water pump 516, which is a water discharge amount variable means, is adjusted to correct the flow rate of the cleaning water.

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

  At the time point P12 when the nozzle unit 820 is retracted 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, which are water discharge amount variable means, are driven again, and the nozzle unit 820 is driven again. Cleaning is started after the cleaning, and at a time P13 when a predetermined time has elapsed, the driving of the water pump 516 and the heat exchanger 700 as the water discharge amount variable means is stopped, and the post-cleaning ends.

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

  FIG. 30 is a sanitary washing apparatus in a standby state in which the initial use has been performed before, and shows a time chart during normal use when the washing operation is carried out.

  The difference from the case of the initial use shown in FIG. 29 is 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, at a time point P20 when the operation switch 210 or the cleaning switch (for example, the buttocks cleaning switch 221 or 410) of the remote controller 400 is operated in the standby state where the sub tank 600 is full, the control unit 130 Then, the energization of the water stop solenoid valve 514 is started to start the supply of cleaning water, and the energization of the heat exchanger 700 is simultaneously started based on the stored data on which the initial operation has already been controlled. Further, the pre-cleaning operation of the nozzle device 800 is started simultaneously. Moreover, the drive of the water level detection sensor 620 is started simultaneously.

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

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

  Moreover, by correcting the threshold value for determining the output voltage change between the electrodes in the water level detection by the temperature, the accuracy of the water level detection and the flow rate detection can be improved, and water with different conductivity can be removed over a wide range. By being able to be used as cleaning water, it is possible to improve the usage range and usability of the sanitary cleaning device.

  In addition, during initial use of the sanitary washing device, water flow continues for a predetermined time after detection of the sub tank full condition, and after the water pump is driven, the heat exchanger starts energizing after the detection of the upper limit water level is eliminated. Therefore, it is possible to prevent the heat exchanger from being blown, and it is simpler and less expensive than the commonly used means of preventing air blow using a flow sensor, and it is safe and reliable. Can be secured.

<7> Control and action of discharge to inner surface of toilet bowl by spray nozzle 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 in, and the rotation angle of the discharge outlet of a spraying nozzle. FIG. 34 is a chart showing the pump output and the rotation speed of the spray nozzle driver at the rotation angle of the discharge port of the spray nozzle.

  As shown in FIG. 32, the spray nozzle 550 includes a rotary nozzle 550d that is rotatably supported by an O-ring 550e and an O-ring 550f in a body 550c having an inlet channel 550b by a spray nozzle driving unit 550a that is a motor. It is a sealed configuration. Reference numeral 550n denotes a shaft of the spray nozzle driving unit 550a fitted to the rotary nozzle 550d.

  The cleaning water or the cleaning foam supplied from the inlet channel 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 from the center of the main body 200. This is because the spray nozzle 550 is disposed not on the center but on the right or left side of the center in order to place priority on the center of the buttocks cleaning nozzle 831 or the like for cleaning the local body part.

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

  At this time, 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, etc. is in a closed state, so that the cleaning water from the heat exchanger 700 flows into the branch flow path 530 and reversely. It is discharged from the spray nozzle 550 to the inner surface of the toilet bowl through the stop valve 531 and the foam tank 532.

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 rotationally driven, and the toilet bowl is cleaned by the cleaning water or the cleaning foam discharged from the discharge port 550u. A water film or a foam film is formed on the entire inner circumference of the.

  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. As shown in FIG. 34, the control unit 130 performs control so as to change the output of the water pump 516 serving as the water discharge amount varying means according to the rotation angle of the discharge port 550u of the spray nozzle 550.

  In the sanitary washing device of the present embodiment, the direction of the discharge port 550u of the spray nozzle 550 is the longest distance to the inner surface of the toilet when the rotation angle is 160 °, and up to the inner surface of the toilet when the direction of the discharge port 550u is 340 ° The distance is the shortest. When the user's entry into the toilet is detected by the human body detection sensor 450, the control unit 130 displays the output of the pump (water pump 516, which is a water discharge amount varying 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 bowl is the longest (longest) is around 160 °, the output of the pump becomes large, and the distance from the discharge port 550u to the toilet bowl inner surface is the longest. When the rotation angle that is close (short) is around 340 °, the ejection amount (and ejection speed) from the discharge port 550u is controlled so that the output of the pump becomes small.

  Therefore, when the water is discharged to the front of the toilet having the farthest distance from the discharge port 550u of the spray nozzle 550, the wash water is discharged with the strongest force and reaches the inner surface of the front of the toilet, and the discharge port 550u of the spray nozzle 550. When the water is discharged to the rear of the toilet, which is the closest distance from the toilet, the cleaning water is discharged with the weakest momentum. It can discharge so that it may reach, and a water film or a foam film can be formed to the inner surface ahead of a toilet bowl, and adhesion of dirt can be controlled.

  As described above, the controller 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 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 a wide area on the inner surface of the toilet bowl, and a water film or a foam film can be formed on a wide area of the inner surface of the toilet bowl to suppress adhesion of dirt.

  It should be noted that the operation unit 210 or the remote controller 400 may be provided with a level change switch that can adjust the pump output level (average level) to be higher or lower. As a result, even if the size of the toilet bowl is different, it is possible to discharge the washing water or washing bubbles so that they reach the entire inner surface of the toilet bowl. Can do.

  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 drives the spray nozzle according to the rotation angle of the discharge port 550u of the spray nozzle 550. You may make it change the speed of the part 550a. By changing the output of the pump (water pump 516, which is a means for changing the amount of water discharged), the momentum of the discharge can be changed so that it can reach the inner surface of a distant toilet, and scattering on the inner surface of a close toilet can be suppressed. 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 is coarse at a location far from the toilet inner surface, and the spray density at a location far from the toilet inner surface is dense. . By changing the output of the pump (water pump 516 which is a water discharge amount varying means), there is an effect of making the distribution distribution uniform, but the distribution nozzle drive unit 5 according to the rotation angle.
By changing the speed of 50a, it can discharge more evenly, in other words, by the inner surface of the toilet.

  As shown in FIG. 34, a toilet whose spraying density is sparse due to dispersion of cleaning water or cleaning foam sprayed in front of the toilet having a rotation angle of about 160 ° which is the farthest distance from the discharge port of the spray nozzle. When discharged forward, the spray nozzle has the slowest rotation speed, the spray density is increased, and the rotation angle that is closest to the spray nozzle discharge port is discharged to the rear of the toilet, which is around 340 ° When the spray nozzle 550 has the fastest rotation speed and the spray density is reduced, the distribution of cleaning water or cleaning foam sprayed on the inner surface of the toilet bowl can be made more uniform, and dirt adhesion can be suppressed.

  That is, the control unit 130 changes the speed of the spray nozzle driving unit 550a according to the rotation angle of the discharge port 550u of the spray nozzle 550, so that the direction of the discharge port 550u of the spray nozzle 550 has a long distance to the inner surface of the toilet bowl. When the rotation angle of the spray nozzle drive unit 550a is low when the rotation angle is in front of the toilet bowl and the distance to the toilet bowl is short, the speed of the spray nozzle drive unit is increased when the rotation angle is behind the toilet bowl. On the other hand, even if the distance to the rear is different, the washing water or washing foam can be uniformly discharged to the inner surface of the toilet bowl, and the water film or foam film is formed evenly to the inner surface of the toilet bowl to adhere dirt. Can be suppressed.

  After the control unit 130 detects a person entering the room with the human body detection sensor 450, the spray nozzle 550 automatically rotates the rotary nozzle 550d twice with the spray nozzle driving unit 550a when spraying cleaning water or cleaning foam on the inner surface of the toilet. Stop. Thus, when a 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 spraying outlet 550u may be sprayed from the rotating outlet 550u to the inner surface of the toilet bowl for a predetermined number of revolutions or for a predetermined time, and is not limited to two rotations.

  In addition, when the spray nozzle 550 sprays cleaning water or cleaning foam on the inner surface of the toilet, the spray nozzle driving unit 550a does not rotate the rotating nozzle 550d twice in one direction, as shown in FIG. The rotary nozzle 550d of the spray nozzle 550 may be configured to reciprocate. Accordingly, the spraying direction of the cleaning water or the cleaning foam is not always the same direction as in the configuration in which the rotating nozzle 550d of the spraying nozzle 550 rotates all around in the right direction or the left direction. By rotating, it is sprayed from the opposite direction by reciprocating, and by spraying from two directions by this forward / reverse rotation, so-called spraying omissions can be reduced and more easily spread, so a small number of spraying times ( Dirt) can be suppressed over time.

  In the chart of FIG. 34, the rotation angle is 0 ° to 340 ° corresponding to the rear side of the toilet and the rotation is temporarily stopped and then stopped after the reciprocating rotation that reversely rotates from the rotation angle 340 ° to the rotation angle 0 °. The action to be shown is shown. The rotation nozzle 550d of the spray nozzle 550 is provided with a rotation restricting portion (not shown) whose rotation 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 protrusion formed on a part of the outer periphery of the rotating nozzle 550d rotates together with the rotating nozzle 550d and contacts the rotation restricting wall of the body 550c. Even if the motor tries to rotate the rotating nozzle 550d, it is in mechanical contact with the motor, so that the rotating nozzle 550d cannot rotate only by slipping and idling the motor.

Thus, by providing a rotation restricting portion (not shown) for restricting the rotation range and rotating the spray nozzle 550 in a reciprocating range that is not restricted by the rotation restricting portion, the reciprocation from the reverse direction due to the reciprocation is achieved. By spraying and spraying from two directions by this forward / reverse rotation, so-called spray omissions can be reduced and more easily sprayed, so it is possible to suppress the adhesion of dirt with a small number of sprays (time). .

  Further, the spray nozzle drive unit 550a is configured by a motor, and the origin of the rotation position of the spray nozzle drive unit can be recognized at the position where the rotation restricting unit is in contact, and the accuracy of the rotation angle position and the rotation speed is high, Dispersion with very little variation is possible.

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

  Incidentally, when the control unit 130 opens the on-off valve 530a, the cleaning water from the heat exchanger 700 is fed by the water pump 516 that is a discharge amount varying means, so that the cleaning water or the cleaning foam is discharged from the spray nozzle 550. The At that time, the discharge amount and discharge momentum (discharge speed and discharge amount) of the cleaning water or the cleaning bubbles discharged from the spray nozzle 550 according to the increase / decrease in the output of the water pump (pump) 516 and the air pump 535 which are the water discharge amount variable means. The discharge pressure is increased or decreased.

  In addition, the configuration in which the on-off valve 530a is provided in the branch flow channel 530 may be a configuration in which a flow path switching valve is provided in a branch portion of the branch flow channel 530 and the washing water supply flow channel 690.

  The user can select whether to spray the cleaning water from the spray nozzle 550 or spray the cleaning foam by the operation unit 210 of the main body 200 or the remote controller 400. It is provided with a foam tank 532 that generates cleaning bubbles by supplying detergent between the on-off valve 530a and the spray nozzle 550, and the cleaning foam is discharged from the discharge port 550u of the spray nozzle 550 to the inner surface of the toilet. In addition, not only a simple water film is formed by spraying water or hot water, but also the effect of suppressing the adhesion of dirt can be further enhanced by forming a foam film by washing bubbles containing a detergent. Moreover, the foam film by the washing | cleaning foam containing a detergent can suppress unpleasant smell and can improve the comfortable feeling 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 bowl separately from the case where the human body detection sensor 450 detects the person entering the room. By operating the spraying switch 417 of the controller 400, spraying can be performed, and whenever a dirt is anxious, a foam film with a cleaning foam including a detergent can be formed and cleaned.

  In addition, whether the washing water or the washing foam is sprayed from the spray nozzle 550 to the inner surface of the toilet is arbitrarily selected by the user in advance by the spray selection switch (not shown) of the operation unit 210 or the remote controller 400. be able to.

  When the cleaning foam is sprayed from the spray nozzle 550 to the inner surface of the toilet bowl, the control unit 130 controls the air pump in accordance with the rotation angle of the discharge port 550u of the spray nozzle 550 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 that it reaches the entire inner surface of the toilet, forming a foam film up to the inner surface of the toilet Thus, the 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 bowl is the longest (longest) is about 160 °, the output of the air pump 535 becomes large, so that the air pressure by the air pump 535 increases. When the rotation angle at which the distance from the discharge port 550u to the inner surface of the toilet is the closest (short) is about 340 °, the output of the air pump 535 is small. Accordingly, the air pressure by the air pump 535 is lowered, and the force to blow the washing bubbles is weakened, so that the washing bubbles can be uniformly discharged to the inner surface of the toilet.

  In addition, the image sensor or the like is further provided with a dirt detection means (not shown) for detecting the dirt on the toilet bowl, and the control unit 130 scatters the remaining part of the toilet in a reciprocating manner in a concentrated manner. The suppression effect can be improved. In addition to the method of partially reciprocating the dirt portion, the rotation speed when the discharge port 550u of the spray nozzle 550 rotates through the dirt portion may be rotated at a low speed or the pump output may be increased.

  As described above, the control and operation of discharging the cleaning foam to the inner surface of the toilet bowl using the spray nozzle described in <7> of this section is performed when the signal of the seating detection unit 330 is in the non-sitting state and the signal of the toilet seat opening / closing detection unit 331 is in the toilet seat closed state. This is a case where a foam spray signal is input, and the direction of the discharge port 550u of the spray nozzle 550 is driven in a wide rotation angle range while the spray nozzle drive unit 550a is driven to control the water discharge amount variable means 516 with a high output to generate cleaning foam. By being configured to be discharged all around the inner surface of the toilet bowl, it is possible to discharge the cleaning foam so as to reach a wide area on the inner surface of the toilet bowl, and a foam film is formed on the wide area of the inner surface of the toilet bowl to suppress the adhesion of dirt. be able to.

  The above-mentioned water discharge amount varying means 516 is controlled with a high output because the signal of the seating detection unit described in the section <8> to be described later is in the seated state and the signal of the toilet seat opening / closing detection unit is foamed in the closed state of the toilet seat. Compared to when a signal is input, and when the signal of the seating detection unit described in <9> is in a non-sitting state and the signal of the toilet seat opening / closing detection unit is in the toilet seat open state and a foam spray signal is input When the signal of the seating detection unit 330 is not seated and the signal of the toilet seat opening / closing detection unit 331 is the toilet seat closed state, the output of the water discharge amount varying means 516 is high when the foam spray signal is input.

<8> Control and action of discharge to inner surface of toilet bowl by spray nozzle in seated state Next, in a state where the user is seated on the toilet seat 300, the spray switch of the operation unit 210 or the remote controller 400 is operated. explain.

  In this case, since the user is seated on the toilet seat 300, the signal of the toilet seat opening / closing detection unit 331 is in the toilet seat closed state, and the signal of the seating detection unit 330 is in the sitting state. When the spray switch 417 is pressed by the user, as shown in FIG. 35, the control unit 130 positions the discharge port 550u of the spray nozzle 550 toward the rear of the toilet bowl (in this embodiment, the chart of FIG. 35). As shown in Fig. 35, the spray nozzle drive unit 550a is rotated and stopped until the rotation angle of the discharge port 550u is about 100 °), and then the water discharge amount variable means 516 is controlled at a low output and washed as indicated by the arrow in FIG. Bubbles are discharged to the rear of the toilet for a predetermined time (in this embodiment, 8 seconds).

  As described above, the position where the cleaning foam is discharged is behind the toilet and is discharged with a weak momentum, so that the user sitting on the toilet seat 300 does not have to worry about the cleaning foam splashing and is sprayed behind the toilet. It becomes a state where even the draft surface in the toilet bowl is covered with the washed foam, an unpleasant odor and adhesion of dirt on the inner surface of the toilet bowl can be suppressed. In addition, in the state of being seated on the toilet seat 300, it is possible to cover up to the draft surface in the toilet bowl with the cleaning foam sprayed behind the toilet bowl, so when the sitting stool or urine falls on the draft surface, the draft surface is covered. Bounce back to the surroundings can be suppressed by the foam cushion effect.

  As described above, according to the present embodiment, the control unit 130 determines that the spray nozzle 550 has a signal when the signal of the seating detection unit 330 is in the seated state and the signal of the toilet seat opening / closing detection unit 331 is input while the toilet seat is closed. After the spray nozzle drive unit 550a is rotationally driven to a position where the direction of the discharge port 550u is directed to the rear of the toilet bowl and stopped, the water discharge amount variable means 516 is controlled at a low output so that the washing foam is discharged to the rear of the toilet bowl. Thus, in the state where the user is seated on the toilet seat 300, the cleaning foam is discharged with a low momentum toward the rear of the toilet inner surface, so that the user can spray the cleaning foam without worrying about the scattering of the cleaning foam. Dirt adhesion can be suppressed.

<9> Discharge control and action operation by spray nozzle in toilet seat open / non-seat state Next, the user is not seated on the toilet seat 300 as in men's urine, and the toilet seat 300 is opened almost vertically. A case where the operation unit 210 or the spraying switch of the remote controller 400 is operated in the above state will be described.

  In this case, since the user is in the standing posture and the toilet seat 300 is opened, the signal of the toilet seat opening / closing detection unit 331 is the toilet seat open state, and the signal of the seating detection unit 330 is the non-sitting state. When the user presses the spray switch 417, as shown in FIG. 36, the control unit 130 moves the position of the discharge port 550u of the spray nozzle 550 toward the toilet outlet 115 (in the present embodiment, FIG. As shown in the chart of FIG. 36, the spray nozzle drive unit 550a is rotated and stopped until the rotation angle of the discharge port 550u is around 150 °), and then the water discharge amount variable means 516 is controlled with a medium output, as shown in FIG. As indicated by the arrow, the washing foam is discharged to the toilet outlet 115 for a predetermined time (in this embodiment, 8 seconds). The discharged cleaning bubbles are in a state of covering the water surface above the discharge port 115, that is, the draft surface, with bubbles.

  As described above, the water discharge amount varying means 516 is controlled at a medium output, and the cleaning foam is discharged in the vicinity of the draft surface above the discharge port 115, so that the draft surface can be quickly covered with foam. It is possible to suppress the odor and adhesion of dirt near the draft surface of the toilet bowl by the cleaning foam. Moreover, when the urine falls near the draft surface, the bounce back to the surroundings can be suppressed by the cushion effect of the foam covering the draft surface.

  The control unit 130 rotates and stops the spray nozzle driving unit 550a until the direction of the discharge port 550u of the spray nozzle 550 faces the discharge port 115 of the toilet bowl at the time of male urination, and then turns the water discharge amount variable means 516 into the middle. FIG. 36 shows that the cleaning foam is discharged to a single point near the center of the toilet outlet 115 in the configuration in which the cleaning foam is discharged toward the toilet outlet 115 under the control of the output of the degree. This shows that the discharge port 550 u of the spray nozzle 550 is discharged toward the discharge port 115 and sprayed in the vicinity of the discharge port 115. The position where the cleaning foam is sprayed may be on the front side, center, or rear side of the toilet near the outlet 115. That is, since the cleaning foam is sprayed around the discharge port 115, the cleaning foam is sprayed on the draft surface in a short time of a few seconds after starting to discharge, and the adhesion of dirt near the draft surface of the toilet can be suppressed. When the cleaning bubbles are discharged from the spray nozzle 550 toward the vicinity of the discharge port 115, the discharge port 550u may not be stopped, but may be sprayed while reciprocating in a narrow range near the discharge port 115.

As described above, according to the present embodiment, the control unit 130, when the signal of the seating detection unit 330 is in the non-sitting state and the signal of the toilet seat opening / closing detection unit 331 is in the toilet seat open state and the foam spraying signal is input, The spray nozzle driving unit 550a is rotated and stopped until the direction of the discharge port 550u of the toilet is directed to the toilet outlet, and then the water discharge amount variable means 516 is controlled with a medium output so that the washing bubbles are discharged from the toilet. In the state where the user is not seated on the toilet seat as in men's urination, and the signal of the toilet seat open / close detection unit is in the toilet seat open state, the cleaning foam is discharged from the toilet bowl. Since it is discharged at a moderate rate toward the exit, the draft surface at the top of the toilet outlet can be covered with washing foam, which suppresses unpleasant odors during urination and contamination around the draft surface of the toilet be able to.

As described above, according to the present embodiment, the control unit 130 drives the spray nozzle according to the signals of the seating detection unit 330 that detects the seating state of the toilet seat 300 and the toilet seat opening / closing detection unit 331 that detects the opening / closing state of the toilet seat. By changing the direction of the outlet 550u of the spray nozzle by the unit 550a and the output of the water discharge amount varying means 516, it is possible to use the spray nozzle for discharging the cleaning foam according to the situation where the sanitary washing device is used. can do.
Thereby, the control according to the scene is possible with an appropriate amount of foam, and the detergent can be saved.

  As described above, the spray nozzle that discharges cleaning water or cleaning foam to the inner surface of the toilet of the sanitary washing device according to the present invention is a seat detection unit that detects the seating state on the toilet seat and the toilet seat opening / closing detection that detects the opening / closing state of the toilet seat The spray nozzle that discharges the cleaning foam according to the situation where the sanitary washing device is used by changing the direction of the spray nozzle discharge port and the output of the water discharge amount variable means by the spray nozzle drive unit according to the signal of the part Therefore, it can be applied to water application equipment having other spray nozzles.

DESCRIPTION OF SYMBOLS 100 Sanitary washing apparatus 110 Toilet bowl 115 Outlet 130 Control part 200 Main body 201 Rear main body case 210 Operation part 221 Butt washing switch 300 Toilet seat 320 Toilet lid 330 Seating sensor (sitting detection part)
331 Toilet seat opening / closing sensor (toilet seat opening / closing detection unit)
400 remote controller 401 remote control body 410 butt washing switch 411 bidet washing switch 412 stop switch 413 move washing switch 414 rhythm washing switch 415 washing strength switch 416 washing position switch 417 spraying switch 450 human body detection sensor 500 washing means 501 chassis 501a water pump Installation part 502 Connection tube 510 Water supply connection port 511 Strainer 512 Check valve 513 Constant flow valve 514 Water stop solenoid valve 515 Relief valve 516 Water pump (water discharge amount variable means)
516a Motor part 516b Link mechanism part 516c Piston part 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 Detergent tank 534 Detergent tank 534 Detergent tank 534 Air pump 550 Spray nozzle 550a Spray nozzle drive unit 550b Inlet flow path 550c Body 550d Rotating nozzle 550e O-ring 550f O-ring 550h Inlet hole 550n Shaft 550u Discharge port 560 Foam generating unit 601 Inlet port 600 Sub tank 603 Atmosphere open port 610 Front tank 612 Rear tank 613 Atmospheric release part 614 Partition wall 615 Water tank 616 Reservoir 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 Incoming 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 Inlet port 712 Hot water outlet 713 Incoming water channel 714 Slit 715 Heating flow path 716 Partition rib 717 Water passage hole 718 Projection 720 Back member 730 Hot water temperature sensor 731 Overheating temperature sensor 750 Buffer tank 800 Nozzle device 801 Nozzle lid 802 Connection tube 810 Support portion 811 Bottom side 812 Inclined portion 813 Vertical side 814 Guide rail 815 Rack guide 816 Holding part 820 Nozzle part 830 Nozzle body 831 Butt washing nozzle (washing nozzle)
832 Bidet cleaning nozzle 833 Nozzle cleaning part 834 Butt cleaning ejection port 835 Butt cleaning channel 835a Rectifying plate 836 Bidet cleaning ejection port 837 Bidet cleaning channel 838 Nozzle cleaning ejection port 839 Nozzle cleaning channel 840 Nozzle cover 841 Nozzle cover body 842 Connection member 843 Connection piece 843a Connection protrusion 844 Ejection opening 845 Drainage port 850 Connection means 851 Connection receiving part 851a Front concave part 851b Rear concave part 860 Cleaning nozzle drive part

Claims (5)

Toilet seat installed in the toilet bowl,
A body that supports the toilet seat in a tiltable manner;
A heat exchanger for heating the wash water;
A cleaning nozzle for cleaning the human body;
A foam generating section for generating cleaning foam;
A spray nozzle that discharges cleaning water or cleaning foam to the inner surface of the toilet;
Water discharge amount variable means for varying the flow rate of the wash water to be sent to the spray nozzle;
A spray nozzle drive 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 for setting an instruction to the control unit;
With
In accordance with signals from a seating detection unit that detects a seating state on the toilet seat and a toilet seat opening / closing detection unit that detects an opening / closing state of the toilet seat, the control unit is configured to determine the direction of the discharge port of the spray nozzle by the spray nozzle driving unit. And a sanitary washing device that changes the output of the water discharge amount varying means. The foam generating unit includes: a foam tank in which wash water from the heat exchanger is fed by a water discharge amount varying means when the control unit opens the on-off valve; and a detergent that supplies the detergent in the 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, wherein washing water or washing foam of the foam tank is discharged from the spray nozzle. When the signal of the seating detection unit is in the non-sitting state and the signal of the toilet seat opening / closing detection unit is in the toilet seat closed state and the bubble spraying signal is input, the control unit has a wide rotation angle range for the direction of the discharge port of the spraying nozzle The sanitary washing apparatus according to claim 1 or 2, wherein the washing foam is discharged to the entire circumference of the inner surface of the toilet bowl by controlling the water discharge amount variable means with a high output while driving the spray nozzle driving unit. The control unit is configured such that when the signal of the seating detection unit is in the seated state and the signal of the toilet seat opening / closing detection unit is in the toilet seat closed state and a foam spraying signal is input, the direction of the discharge port of the spraying nozzle is toward the back of the toilet The sanitary washing device according to claim 1 or 2, wherein after the spray nozzle drive unit is rotationally driven and stopped, the water discharge amount variable means is controlled with a low output so that washing bubbles are discharged to the rear of the toilet. When the signal of the seating detection unit is in the non-sitting state and the signal of the toilet seat opening / closing detection unit is in the toilet seat open state and the foam spraying signal is input, the control unit is configured such that the direction of the discharge port of the spraying nozzle is the outlet of the toilet The spraying nozzle drive unit is rotated and stopped to a position facing the surface, and then the water discharge amount variable means is controlled with a medium output so that the cleaning foam is discharged toward the outlet of the toilet. The sanitary washing device described in 1.

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