JP2011058206A - Sanitary washing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing device which detects the state of a heat exchanger fully filled with water without providing the heat exchanger with a water level detection means. <P>SOLUTION: This sanitary washing device includes an opening/closing valve arranged in the halfway of a flow passage for supplying water supplied from a water supply source into a discharge nozzle and the heat exchanger of instantaneously heating type, a flow rate detection means arranged in the flow passage between the heat exchanger and the discharge nozzle to detect a flow rate of water flowing in the flow passage, and a control means for controlling the heating of the heat exchanger in accordance with the flow rate of water detected by the flow rate detection means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sanitary washing device, and more particularly to a sanitary washing device for washing a user's “butt” or the like sitting on a Western-style sitting toilet seat with water.

  Some sanitary washing apparatuses include, for example, a heat exchanger that heats washing water used for washing to an appropriate temperature so as not to cause discomfort to the user. Examples of the heat exchanger include an instantaneous heat exchanger and a hot water storage heat exchanger. According to such a sanitary washing device, it is possible to wash a user's “buttock” or the like with warm water.

  Therefore, there is a sanitary washing device that controls the instantaneous heating means based on the flow rate detected by the flow rate detection means provided on the upstream side of the instantaneous heating means (Patent Document 1). According to the sanitary washing device described in Patent Document 1, the flow rate of washing water can be accurately and easily detected by the flow rate detection means. As a result, the temperature, pressure or flow rate of the washing water can be controlled accurately and easily.

  However, in the sanitary washing apparatus described in Patent Document 1, since the flow rate detection means is arranged upstream of the heat exchanger (instantaneous heating means), for example, immediately after purchasing the product or the water in the heat exchanger. Even when the heat exchanger is not full, such as when the water tap fails, it cannot be detected that the heat exchanger is not full. Therefore, there is a possibility that the heat exchanger may cause airing.

  In order to solve this problem, for example, it is necessary to provide water level detection means such as a float switch in the heat exchanger. However, if such a water level detection means is provided in the heat exchanger, there arises a problem that the cost is increased or it is difficult to downsize the heat exchanger.

JP 2004-100253 A

  The present invention has been made on the basis of recognition of such a problem, and provides a sanitary washing device that can reliably detect that the heat exchanger is full without providing a water level detecting means in the heat exchanger. With the goal.

According to a first aspect of the present invention, there is provided an on-off valve and an instantaneous heating type heat exchanger disposed in the middle of a flow path for supplying water supplied from a water supply source to a water discharge nozzle, and the heat exchanger and the water discharge nozzle. A flow rate detecting means for detecting a flow rate of water flowing through the flow path, and heating control of the heat exchanger according to the flow rate of water detected by the flow rate detecting means. And a sanitary washing device characterized by comprising a control means.
According to this sanitary washing device, the control means flows out of the heat exchanger, that is, the flow rate of water flowing through the flow path downstream of the heat exchanger, by the flow rate detection means provided on the downstream side of the heat exchanger. In order to detect the flow rate of water and control the heating of the heat exchanger, heating of the heater of the heat exchanger is started in a state where the heat exchanger is surely full. Therefore, the control means can reliably detect that the heat exchanger has become full without providing a water level detection means in the heat exchanger, and can reliably prevent the heat exchanger from causing emptying. .
Further, the control means determines a heating amount for heating the water to an appropriate temperature based on the flow rate of the water detected by the flow rate detection means. Therefore, when one flow rate detection means detects the flow rate of the water flowing through the flow path, the control of the heat exchanger “ON / OFF” and the control of the heating amount of the heater of the heat exchanger are executed. be able to. Thereby, it is not necessary to provide a water level detection means in a heat exchanger, and cost reduction can be aimed at.

In a second aspect based on the first aspect, the control means opens the on-off valve when receiving an instruction to execute water discharge from the water discharge nozzle, and the flow rate detection means causes the water flowing through the flow path. When the flow rate of a predetermined value or more is detected, the heat exchanger starts heating the heat exchanger.
According to this sanitary washing device, when the flow rate detection means detects a flow rate of a predetermined value or more, the control means determines that the heat exchanger is full. Therefore, even if the residual water in the flow path passes through the flow rate detection means, it is possible to suppress the malfunction of the heat exchanger. Thereby, it can suppress more reliably that a heat exchanger raise | generates emptying.

In a third aspect based on the first aspect, the control means opens the on-off valve upon receiving a command to execute water discharge from the water discharge nozzle, and the flow rate detection means causes water to flow through the flow path. When the flow rate is continuously detected for a predetermined time or more, the heat exchanger starts heating the heat exchanger.
According to this sanitary washing device, when the flow rate detection means detects the flow rate continuously for a predetermined time or more, the control means determines that the heat exchanger is full. Therefore, even if the residual water in the flow path passes through the flow rate detection means, it is possible to suppress the malfunction of the heat exchanger. Thereby, it can suppress more reliably that a heat exchanger raise | generates emptying.

Moreover, 4th invention is a pulsation which is arrange | positioned in the said flow path between the said flow volume detection means and the said water discharge nozzle in any one invention of 1st-3rd, and gives the pulsation to the flow of the said water A generator, and an accumulator disposed in the flow path between the flow rate detection means and the pulsation generator, and suppressing the pulsation of water provided by the pulsation generator from being transmitted upstream. Furthermore, the sanitary washing device is characterized in that it is provided.
According to this sanitary washing device, the accumulator can suppress the pulsation of water given by the pulsation generator from being transmitted to the upstream side. Therefore, the flow rate detection means can accurately detect the flow rate of the water flowing through the flow path, and is unlikely to malfunction.

  According to the aspect of the present invention, there is provided a sanitary washing device that can reliably detect that the heat exchanger is full without providing a water level detecting means in the heat exchanger.

It is a perspective schematic diagram which illustrates the toilet apparatus provided with the sanitary washing apparatus concerning embodiment of this invention. It is a block diagram showing the channel structure of the sanitary washing apparatus concerning this embodiment. It is a time chart which illustrates the example of operation | movement of the sanitary washing apparatus concerning this embodiment. It is a time chart which illustrates the other specific example of operation | movement of the sanitary washing apparatus concerning this embodiment. It is a cross-sectional schematic diagram which illustrates an example of the flow volume detection means of this embodiment. It is a cross-sectional schematic diagram which illustrates another example of the flow volume detection means of this embodiment. It is a cross-sectional schematic diagram which illustrates an example of the pulsation generator and accumulator of this embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic perspective view illustrating a toilet apparatus including a sanitary washing device according to an embodiment of the invention.

  The toilet device shown in FIG. 1 includes a Western-style seat toilet (hereinafter simply referred to as “toilet” for convenience of explanation) 800 and a sanitary washing device 100 provided thereon. The sanitary washing device 100 includes a casing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are pivotally supported with respect to the casing 400 so as to be freely opened and closed.

  Inside the casing 400, for example, a local cleaning function unit that realizes cleaning of a “sitting” of a user sitting on the toilet seat 200 is incorporated. In addition, a seating sensor 451 for detecting that the user is sitting on the toilet seat is provided on the upper portion of the casing 400. When the seating sensor 451 detects a user sitting on the toilet seat, when the user operates the setting unit 600 such as a remote controller, the water discharge nozzle 421 can be advanced into the bowl 801 of the toilet 800. One or a plurality of water discharge ports 421 a are provided at the tip of the water discharge nozzle 421.

  Subsequently, the water discharge nozzle 421 can wash the “butt” of the user sitting on the toilet seat 200 by spraying water from the water discharge port 421a provided at the tip thereof. In the present specification, “water” includes not only cold water but also heated hot water.

  Further, in the sanitary washing apparatus 100 shown in FIG. 1, a recessed portion 461 is formed on the upper surface of the casing 400, and an entrance detection sensor 453 is provided so as to be partially embedded in the recessed portion 461. When the toilet lid 300 is closed, the room entry detection sensor 453 detects the user's room entry through the transmission window 310 provided in the vicinity of the base.

  Further, in the casing 400, a “warm air drying function”, a “deodorizing unit”, an “indoor heating unit” or the like that blows warm air toward a “buttock” of a user sitting on the toilet seat 200 and the like, etc. These various mechanisms may be provided as appropriate. At this time, an exhaust port 463 from the deodorizing unit and an exhaust port 465 from the indoor heating unit are appropriately provided on the side surface of the casing 400. However, in the present invention, the room entry detection sensor 453 and other additional function units are not necessarily provided.

FIG. 2 is a block diagram illustrating a water channel configuration of the sanitary washing device according to the present embodiment.
The sanitary washing device 100 according to the present embodiment includes a flow path for supplying water supplied from a water pipe terminal (water supply terminal) 501, that is, a water supply source, to the water discharge nozzle 421. First, a check valve 401 is connected to the upstream side of the flow path to prevent the reverse flow of water upstream. In addition, an electromagnetic valve (open / close valve) 403 and a pressure regulating valve 405 are provided on the downstream side of the check valve 401.

  The electromagnetic valve 403 is preferably an electromagnetic valve that is normally closed, that is, in a closed state when not energized, and controls water supply to the downstream side based on a command from the control means 430. Further, the pressure regulating valve 405 has a function of adjusting to a predetermined pressure range when the feed water pressure is high. The control means 430 is provided inside the casing 400.

  An instantaneous heating unit 409, a flow rate detection unit 413, and a flow rate adjustment unit 415 are provided on the downstream side of the pressure regulating valve 405. Further, an incoming water temperature detecting means 407 for detecting the temperature of water flowing into the instantaneous heating means 409 is provided between the pressure regulating valve 405 and the instantaneous heating means 409. Furthermore, between the instantaneous heating unit 409 and the flow rate detecting unit 413, a discharge water temperature detecting unit 411 for detecting the temperature of water flowing out from the instantaneous heating unit 409 is provided.

  The instantaneous heating means 409 is a so-called instantaneous heating type heat exchanger, and heats the water in a flowing state supplied by a heater such as a sheathed heater or a ceramic heater. Then, the control means 430 performs heating control of the instantaneous heating means 409 based on the temperature of the water detected by the incoming water temperature detection means 407 and the outgoing water temperature detection means 411, and the water supplied to the instantaneous heating means 409. Can be set to a predetermined hot water appropriately set by the setting means 600. The flow rate detection means 413 is provided downstream of the instantaneous heating means 409, and can detect the flow rate of water flowing out of the instantaneous heating means 409 and flowing through the flow path. The flow rate adjusting means 415 adjusts the flow rate and water flow of water supplied to the water discharge nozzle 421.

  On the downstream side of the flow rate adjusting means 415, there are a pulsation generator 419 that pulsates the flow of water in the flow path, and a water discharge nozzle 421 that injects water to the user's “tail” sitting on the toilet seat 200, and the like. Is provided. In addition, an accumulator 417 is provided between the flow rate adjusting unit 415 and the pulsation generator 419 to suppress the water pulsation provided by the pulsation generator 419 from being transmitted to the upstream side.

  Here, for example, immediately after the sanitary washing apparatus 100 is installed or immediately after the sanitary washing apparatus 100 is purchased, the instantaneous heating means 409 is not full. As described above, when the instantaneous heating unit 409 is not full, if the control unit 430 sets the heater of the instantaneous heating unit 409 to “ON”, the instantaneous heating unit 409 may cause emptying. Therefore, for example, the instantaneous heating means 409 may be provided with a water level detection means such as a float switch. However, if the instantaneous heating means 409 is provided with a water level detecting means, there arises a problem that the cost is increased.

  On the other hand, in the sanitary washing device 100 according to the present embodiment, the flow rate detection means 413 is provided downstream of the instantaneous heating means 409, that is, between the instantaneous heating means 409 and the water discharge nozzle 421. As described above, the flow rate detection unit 413 can detect the flow rate of water flowing out of the instantaneous heating unit 409. For this reason, the fact that the flow rate detection means 413 detects the flow rate of the water flowing through the flow path is equivalent to the instantaneous heating means 409 being full of water. This is because the flow rate detection means 413 cannot detect the flow rate of the water flowing through the flow path unless the instantaneous heating means 409 is full and water does not flow out from an outflow pipe (not shown) appropriately provided in the instantaneous heating means 409. It is.

  Therefore, in the sanitary washing device 100 according to the present embodiment, when the flow rate detection unit 413 detects the flow rate of the water flowing through the flow path, the control unit 430 determines that the instantaneous heating unit 409 is full and detects the flow rate. The heating control of the instantaneous heating means 409 is executed according to the flow rate of water detected by the means 413. That is, when the flow rate detection unit 413 detects the flow rate of the water flowing through the flow path, the control unit 430 switches the heater of the instantaneous heating unit 409 from “OFF” to “ON”. Alternatively, the control unit 430 controls the heating amount (energization amount) of the heater of the instantaneous heating unit 409 according to the flow rate of water detected by the flow rate detection unit 413.

  According to this, the control means 430 detects the flow rate of water flowing out of the instantaneous heating means 409 by the flow rate detection means 413 provided on the downstream side of the instantaneous heating means 409, and the instantaneous heating means 409 is heated. In order to execute the control, heating of the heater is started in a state where the instantaneous heating means 409 is surely full. Therefore, the control means 430 can reliably detect that the instantaneous heating means 409 is full without providing the water level detection means in the instantaneous heating means 409, and the instantaneous heating means 409 can cause emptying. It can be surely suppressed.

  Further, the control unit 430 determines a heating amount for heating the water to an appropriate temperature based on the flow rate of the water detected by the flow rate detection unit 413. Therefore, when the single flow rate detection means 413 detects the flow rate of the water flowing through the flow path, “ON / OFF” control of the instantaneous heating means 409 and control of the heating amount of the heater are executed. Can do. Thereby, it is not necessary to provide the water level detecting means in the instantaneous heating means 409, and the cost can be reduced.

Next, a specific example of the operation of the sanitary washing device 100 according to the present embodiment will be described with reference to the drawings.
FIG. 3 is a time chart illustrating a specific example of the operation of the sanitary washing device according to this embodiment.

  In the operation of this specific example, when the flow rate detection unit 413 detects a flow rate of water flowing through the flow path above a predetermined value, the control unit 430 starts heating (energizing) the heater of the instantaneous heating unit 409. Describing with reference to the time chart shown in FIG. 3, first, the control means 430 opens the electromagnetic valve 403 (time t1) upon receiving a command to execute water discharge from the water discharge nozzle 421 by the setting means 600 such as a remote controller. ). At this time, the control unit 430 sets the heater of the instantaneous heating unit 409 to “OFF”. Moreover, since water does not flow through the flow path, the flow rate detection means 413 does not detect water.

  Subsequently, when the electromagnetic valve 403 is opened, water is supplied to the instantaneous heating means 409. When the instantaneous heating means 409 is full, water flows out from an outflow pipe (not shown). Then, the flow rate detection means 413 starts to detect the flow rate of water flowing through the flow path. When the flow rate detection unit 413 detects a flow rate of water flowing through the flow path at a predetermined value or more, the control unit 430 sets the heater of the instantaneous heating unit 409 to “ON” (time t2). Thereafter, the flow rate detection means 413 detects the flow rate of water set as appropriate.

  According to this specific example, when the flow rate detection unit 413 detects a flow rate equal to or higher than a predetermined value, the control unit 430 determines that the instantaneous heating unit 409 is full. Therefore, even if the residual water in the flow path passes through the flow rate detection means 413, the instantaneous heating means 409 can be prevented from malfunctioning. Thereby, it can suppress more reliably that the instantaneous heating means 409 raise | generates idling.

FIG. 4 is a time chart illustrating another specific example of the operation of the sanitary washing device according to this embodiment.
In the operation of this specific example, when the flow rate detection unit 413 continuously detects the flow rate of water flowing through the flow path for a predetermined time or longer, the control unit 430 starts heating (energizing) the heater of the instantaneous heating unit 409. . Referring to the time chart shown in FIG. 4, when the control means 430 receives a command to execute water discharge from the water discharge nozzle 421 from the setting means 600 such as a remote controller, the control valve 430 opens the electromagnetic valve 403 (time t1). ). This is similar to the operation of the specific example described above with reference to FIG.

  Subsequently, when the electromagnetic valve 403 is opened, water is supplied to the instantaneous heating means 409. When the instantaneous heating means 409 is full, water flows out from an outflow pipe (not shown). Then, the flow rate detection means 413 starts to detect the flow rate of water flowing through the flow path. That is, water with a flow rate exceeding the detection lower limit of the flow rate detection means 413 starts to flow. When the flow rate detection unit 413 continuously detects the flow rate of water flowing through the flow path for a predetermined time or longer, the control unit 430 sets the heater of the instantaneous heating unit 409 to “ON” (time t2). That is, when water having a flow rate exceeding the detection lower limit of the flow rate detection unit 413 continuously flows for a predetermined time or longer, the control unit 430 sets the heater of the instantaneous heating unit 409 to “ON”.

  According to this specific example, when the flow rate detection unit 413 detects the flow rate continuously for a predetermined time or longer, the control unit 430 determines that the instantaneous heating unit 409 is full. Therefore, similarly to the specific example described above with reference to FIG. 3, even if the residual water in the flow path passes through the flow rate detection means 413, it is possible to prevent the instantaneous heating means 409 from malfunctioning. Thereby, it can suppress more reliably that the instantaneous heating means 409 raise | generates idling.

Next, the flow rate detection means 413 of this embodiment will be described with reference to the drawings.
FIG. 5 is a schematic cross-sectional view illustrating an example of the flow rate detection unit of the present embodiment.
The flow rate detection unit 413 illustrated in FIG. 5 includes a main body 471, a rotation speed detection unit 473 attached to the main body 471, and a blade 475 provided inside the main body 471. The rotation speed detection means 473 is called, for example, a Hall IC, and can detect an electromotive force (Hall voltage) by an effect called a Hall effect.

  As shown in FIG. 5, the water flowing out from the instantaneous heating unit 409 enters the inside from one of the main body portions 471 of the flow rate detecting unit 413 and flows out from the other. The blade 475 is provided so as to be rotatable about a shaft 477 installed in a direction substantially parallel to the flow of water. Therefore, when water flowing out from the instantaneous heating means 409 enters from one of the main body portions 471 and flows out from the other, the blade 475 receives the force from the water as indicated by the arrow A shown in FIG. Rotates as the center.

  Here, the blade 475 is appropriately provided with a sensor magnet (not shown). Then, when the blade 475 is rotated, the rotation speed detecting means 473 can detect a change in the Hall voltage. The change in the voltage appears as a pulse waveform, for example. Therefore, the rotation speed detection means 473 can detect the rotation speed of the blade 475 by detecting the number of pulses, for example. Thereby, the flow rate detection means 413 can detect the flow rate of water flowing through the inside of the main body 471, that is, the flow path, based on the rotation speed of the blade 475. Then, the flow rate detection unit 413 can output the detected flow rate of water to the control unit 430.

FIG. 6 is a schematic cross-sectional view illustrating another example of the flow rate detection unit of the present embodiment.
The flow rate detection means 413a shown in FIG. 6 is provided inside the main body 471a and the main body 471a, the rotation speed detection means 473a attached to the main body 471a, and the flow rate detection means 413 shown in FIG. Blades 475a. The rotation speed detection means 473a is called, for example, a photo interrupter and has a light emitting part and a light receiving part (not shown).

  As shown in FIG. 6, the water flowing out from the instantaneous heating unit 409 enters the inside from a part of the main body 471a of the flow rate detecting unit 413a and flows out from the other part to the outside. Further, the blade 475a is provided so as to be rotatable about a shaft 477a installed in a direction substantially perpendicular to the flow of water. Therefore, when water flowing out from the instantaneous heating means 409 enters from a part of the main body 471a and flows out from the other part, the blade 475a receives a force from the water as shown by an arrow B in FIG. It rotates about 477a.

  Here, as described above, the rotation speed detection means 473a has a light emitting part and a light receiving part (not shown), and the light emitting part and the light receiving part are provided to face each other. The light projecting unit always emits light toward the light receiving unit, and the light receiving unit receives the light. And the rotation speed detection means 473a can detect the rotation speed of the blade | wing 475a by detecting the frequency | count that the light emitted from the light projection part was shielded by the blade | wing 475a. Thereby, the flow rate detection means 413a can detect the flow rate of the water flowing through the inside of the main body 471a, that is, the flow path, based on the rotational speed of the blade 475a. The flow rate detection unit 413a can output the detected flow rate of water to the control unit 430.

Next, the pulsation generator 419 and the accumulator 417 of this embodiment will be described with reference to the drawings.
FIG. 7 is a schematic cross-sectional view illustrating an example of the pulsation generator and accumulator of this embodiment.

  The pulsation generator 419 and the accumulator 417 of this embodiment are integrally formed as shown in FIG. Note that the pulsation generator 419 and the accumulator 417 are not limited to this, and may be formed as separate bodies. The water flowing out from the flow rate adjusting means 415 enters the interior from a water inlet 419 a provided in the pulsation generator 419 and flows out from a water outlet 419 b provided in the pulsation generator 419.

  The pulsation generator 419 has a movable part 419c inside. The movable portion 419c can pulsate in a direction parallel to the shaft 419d, that is, in a direction parallel to the flow of water, by a control signal from the control means 430. Thereby, the pulsation generator 419 can give pulsation to the water flowing inside, and can give pulsation to the water discharged from the water discharge nozzle 421.

  At this time, the pulsation generator 419 may not only pulsate water downstream of the pulsation generator 419 but also pulsate water upstream of the pulsation generator 419. Then, the pulsation of water is transmitted to the flow rate adjustment unit 415 and the flow rate detection unit 413, and the flow rate adjustment unit 415 cannot accurately adjust the flow rate and water flow of the water supply to the water discharge nozzle 421, or the flow rate detection unit 413. May not be able to accurately detect the flow rate of water flowing through the flow path.

  On the other hand, in the present embodiment, an accumulator 417 is provided between the flow rate adjusting unit 415 and the flow rate detecting unit 413 and the pulsation generator 419. As shown in FIG. 7, the accumulator 417 includes an air chamber 417a and a damper 417b. The accumulator 417 can absorb or buffer the pulsation by appropriately operating the damper 417b according to the pressure of the water pulsated by the pulsation generator 419. Therefore, the accumulator 417 can suppress the pulsation of water given by the pulsation generator 419 from being transmitted to the upstream side.

  Thereby, in this embodiment, the flow volume adjustment means 415 can adjust the flow volume and water flow of the water supply to the water discharge nozzle 421 correctly, and the flow volume detection means 413 is the flow volume of the water which flows through a flow path. It can be detected accurately. That is, the flow rate adjustment unit 415 and the flow rate detection unit 413 are less likely to malfunction.

  As described above, according to the present embodiment, the control unit 430 detects the flow rate of water flowing out from the instantaneous heating unit 409 by the flow rate detection unit 413 provided on the downstream side of the instantaneous heating unit 409. In order to execute the heating control of the instantaneous heating unit 409, heating of the heater is started in a state where the instantaneous heating unit 409 is surely full. Therefore, the control means 430 can reliably detect that the instantaneous heating means 409 is full without providing the water level detection means in the instantaneous heating means 409, and the instantaneous heating means 409 can cause emptying. It can be surely suppressed. Moreover, since it is not necessary to provide a water level detection means in the instantaneous heating means 409, cost reduction can be achieved.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, dimensions, material, arrangement, etc. of each element provided in the flow rate detection means 413, the pulsation generator 419, etc. and the installation form of the sanitary washing device 100 are not limited to those illustrated, but may be changed as appropriate. Can do.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  DESCRIPTION OF SYMBOLS 100 Sanitary washing apparatus, 200 Toilet seat, 300 Toilet lid, 310 Permeation window, 400 Casing, 401 Check valve, 403 Solenoid valve, 405 Pressure regulating valve, 407 Incoming water temperature detecting means, 409 Instantaneous heating means, 411 Outlet water temperature detecting means, 413 Flow rate detection means, 413a Flow rate detection means, 415 Flow rate adjustment means, 417 Accumulator, 417a Air chamber, 417b Damper, 419 Pulsation generator, 419a Water inlet, 419b Water outlet, 419c Movable part, 419d Shaft, 4211 Water discharge nozzle Water discharge port, 430 control means, 451 seating sensor, 453 entry detection sensor, 461 recessed portion, 463 exhaust port, 465 discharge port, 471, 471a main body, 473, 473a rotational speed detection means, 475, 475a blade, 477, 4 7a shaft, 501 tap terminal, 600 setting means, 800 the toilet, 801 bowl

Claims (4)

An on-off valve and a momentary heating type heat exchanger disposed in the middle of a flow path for supplying water supplied from a water supply source to a water discharge nozzle;
A flow rate detecting means disposed in the flow path between the heat exchanger and the water discharge nozzle to detect a flow rate of water flowing through the flow path;
Control means for performing heating control of the heat exchanger according to the flow rate of water detected by the flow rate detection means;
A sanitary washing device characterized by comprising:   When the control means receives a command to execute water discharge from the water discharge nozzle, the control means opens the on-off valve, and when the flow rate detection means detects a flow rate equal to or higher than a predetermined value of water flowing through the flow path, The sanitary washing apparatus according to claim 1, wherein heating is started.   When the control means receives a command to execute water discharge from the water discharge nozzle, it opens the on-off valve, and when the flow rate detection means detects the flow rate of water flowing through the flow path continuously for a predetermined time or more, the heat exchange 2. The sanitary washing apparatus according to claim 1, wherein heating of the vessel is started. A pulsation generator that is disposed in the flow path between the flow rate detection means and the water discharge nozzle and pulsates the flow of water;
An accumulator that is disposed in the flow path between the flow rate detection means and the pulsation generator, and suppresses the pulsation of water provided by the pulsation generator from being transmitted upstream;
The sanitary washing device according to any one of claims 1 to 3, further comprising:

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