JP2020133291A - Sanitary washing device - Google Patents

Abstract

To provide the sanitary washing device that can downsize the device by simplifying a flow channel configuration from a heating device to a water discharge part such as a private part washing nozzle via a vacuum breaker part.SOLUTION: A sanitary washing device 2 comprises: a heat exchanger 22 including a tank 26 that receives supply of water from a water supply source 9 and heating the water in the tank 26; a VB part 50 provided integrally with the tank 26; and a water discharge part (private part washing nozzle 31 and the like) that is provided on a downstream side of the heat exchanger 22 and receives the water supplied through the VB part 50 to discharge the water, wherein the VB part 50 includes a partition wall part 63 that partitions the internal space of the VB part 50 into a lower space part 50a that communicates with the internal space of the tank 26 and an upper space part 50b that communicates with the water discharge part, a water outflow port 91 for supplying the water from the lower space side 50a to an electrolytic bath 23, a water inflow port 92 for allowing the water that has passed through the electrolytic bath 23 to flow into the upper space part 50b, and an external water outflow port 93 for supplying the water from the upper space part 50b to the water discharge part.SELECTED DRAWING: Figure 8

Description

The present invention relates to a sanitary cleaning device that cleans a local part of a human body with washing water.

Conventionally, in a sanitary cleaning device that is mounted on a toilet bowl such as a Western-style seated toilet to clean a local part of the human body, a local cleaning unit constituting a water discharge part that discharges washing water from a water supply source such as a water supply to the local part of the human body. In the flow path to the nozzle (hereinafter, also simply referred to as "nozzle"), there is one provided with a heating device for heating the washing water and an electrolytic tank provided on the downstream side of the heating device to generate predetermined functional water. .. Further, in the flow path from the water supply source to the nozzle, for example, an air release type vacuum breaker is provided on the downstream side of the heating device (see, for example, Patent Document 1).

Patent Document 1 discloses a configuration in which a heating device and an electrolytic cell are provided in a flow path from a water supply source to a nozzle, and vacuum breakers are arranged on each of the upstream side and the downstream side of the electrolytic cell.

Japanese Unexamined Patent Publication No. 2011-208432

As described above, in the configuration provided with the vacuum breaker, a configuration in which the vacuum breaker is integrally provided with the heating device is being studied. Specifically, for example, for a hot water storage type heating device having a tank with a built-in heater, a vacuum breaker communicates with the internal space of the tank in a manner in which the constituent members forming the housing are connected to the tank. It is installed on the upper side of the tank.

In this way, in a configuration in which a vacuum breaker (hereinafter, appropriately referred to as “VB”) is provided integrally with the heating device (hereinafter, referred to as “tank / VB integrated configuration”), the flow path configuration from the heating device to the nozzle is used. When trying to adopt a flow path configuration in the order of heating device → VB → electrolytic cell → nozzle, there are the following problems. That is, in addition to the piping member such as the tube that constitutes the flow path from the VB to the electrolytic cell provided integrally with the tank, the piping member that constitutes the flow path from the electrolytic cell to the nozzle is required. In particular, regarding the latter flow path, there is a concern that the size of the device will increase because it is necessary to secure a space for arranging the piping members between the tank and the nozzle of the heating device due to the layout of various devices. Will be done. That is, from the viewpoint of making the sanitary cleaning device compact, it is preferable that the piping member extending from the VB is connected to the nozzle side.

On the other hand, in the tank / VB integrated configuration, in order to connect the piping member extending from the VB to the nozzle side, it is conceivable to adopt a flow path configuration in the order of heating device → electrolytic cell → VB → nozzle. However, in the tank / VB integrated configuration, it is difficult to provide an electrolytic cell between the heating device and the vacuum breaker.

As another flow path configuration, for example, a three-way valve having one inlet and two outlets is provided on the upstream side of the tank of the heating device, and the water supply path to the tank of the heating device is provided by the operation of the three-way valve. And the water supply route to the electrolytic cell can be selectively switched. That is, according to the former water supply path, the order is heating device → VB → nozzle, and according to the latter water supply path, the order is electrolytic cell → VB → nozzle. Therefore, it is possible to connect the piping member extending from the VB to the nozzle side. However, such a configuration is not preferable from the viewpoint of compactification of the apparatus because the piping configuration becomes complicated and a three-way valve is required.

The present invention has been made in view of the above-mentioned problems, and can simplify the flow path configuration from the heating device to the water discharge part such as the local cleaning nozzle through the vacuum breaker part. It is an object of the present invention to provide a sanitary cleaning device capable of making the device compact.

The sanitary cleaning device according to the present invention is a sanitary cleaning device that cleans a local part of a human body with washing water, has a tank that receives water supply from a water supply source, and has a heating device that heats the water in the tank. A vacuum breaker unit provided integrally with the tank, and a water discharge unit provided on the downstream side of the heating device and receiving water supplied through the vacuum breaker unit and discharging water are provided. The breaker portion includes a partition wall portion that divides the internal space of the vacuum breaker portion into a first space portion that communicates with the internal space of the tank and a second space portion that communicates with the water discharge portion, and the first space. An outlet for supplying water from the first space portion to a predetermined external device, and water provided in the portion forming the second space portion and passing through the external device are used. It has an inflow port for flowing into the two space portions and an external outlet provided in the portion forming the second space portion for supplying water from the second space portion to the water discharge portion. ..

According to the sanitary cleaning device having such a configuration, the flow path configuration from the heating device to the water discharge part such as the local cleaning nozzle through the vacuum breaker part can be simplified, and the device can be made compact. it can.

In another aspect of the sanitary cleaning device according to the present invention, the external device is an electrolytic cell that produces predetermined functional water, and the electrolytic cell has at least a part of the outer range of the tank in a plan view. It is provided so as to be located on the outside.

According to the sanitary cleaning device having such a configuration, it is possible to suppress the heat of the heating device from being transferred to the electrolytic cell, and it is possible to suppress the generation of scale that causes the flow path to be clogged in the electrolytic cell. it can.

In another aspect of the sanitary cleaning device according to the present invention, the external device is an electrolytic cell that produces predetermined functional water, and the electrolytic cell is directly connected to the vacuum breaker portion. Is.

According to the sanitary cleaning device having such a configuration, it is possible to eliminate the need for piping members such as tubes for forming a flow path between the electrolytic cell and the vacuum breaker section, and effectively make the device compact. In addition to being able to achieve this, the number of parts can be reduced, and costs can be reduced.

In another aspect of the sanitary cleaning device according to the present invention, the vacuum breaker unit has a drain port at a position above the tank, and the tank guides the water discharged from the drain port to a predetermined position. It has a drainage channel.

According to the sanitary cleaning device having such a configuration, it is possible to guide the drainage from the vacuum breaker part and the dew condensation water on the surface of the tank to a predetermined place without the need for piping members such as tubes. The device can be effectively made compact, the number of parts can be reduced, and the cost can be reduced.

According to the present invention, the flow path configuration from the heating device to the water discharge part such as the local cleaning nozzle through the vacuum breaker part can be simplified, and the device can be made compact.

It is a perspective view which shows the toilet apparatus provided with the sanitary cleaning apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the sanitary cleaning apparatus which concerns on one Embodiment of this invention. It is a top view which shows the arrangement structure of the apparatus | apparatus in the sanitary cleaning apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the heat exchanger of the sanitary cleaning apparatus which concerns on one Embodiment of this invention, and its periphery. It is a top view which shows the heat exchanger of the sanitary cleaning apparatus which concerns on one Embodiment of this invention, and its periphery. It is a perspective view which shows the vacuum breaker part which concerns on one Embodiment of this invention, and its periphery. It is a top view which shows the vacuum breaker part which concerns on one Embodiment of this invention, and its periphery. It is sectional drawing AA in FIG. 7 about the vacuum breaker part which concerns on one Embodiment of this invention. It is an exploded perspective view which shows the structure of the vacuum breaker part which concerns on one Embodiment of this invention. It is a plan perspective view of the VB lower member which concerns on one Embodiment of this invention. It is a plan perspective view of the VB lower member which concerns on one Embodiment of this invention. It is a bottom perspective view of the VB lower member which concerns on one Embodiment of this invention. It is a top view of the VB lower member which concerns on one Embodiment of this invention. It is a left side view of the VB lower member which concerns on one Embodiment of this invention. It is a plan perspective view of the VB cap member which concerns on one Embodiment of this invention. It is a bottom perspective view of the VB cap member which concerns on one Embodiment of this invention. It is a bottom perspective view of the strainer which concerns on one Embodiment of this invention. It is a block diagram which shows the flow path structure from the heat exchanger to the nozzle unit in the sanitary cleaning apparatus which concerns on one Embodiment of this invention. It is an exploded view which shows the connection structure of the electrolytic cell and the vacuum breaker part which concerns on one Embodiment of this invention. It is a perspective sectional view which shows the flow path structure in the vacuum breaker part which concerns on one Embodiment of this invention. It is a perspective view which shows the structure of the VB drainage flow path which concerns on one Embodiment of this invention.

In the present invention, a vacuum breaker portion is integrally provided with the heating device in the flow path from the water supply source such as water supply to the water discharge portion such as the local cleaning nozzle, and the structure of the vacuum breaker portion is devised. The purpose is to simplify the flow path configuration and realize a compact device configuration. Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the configuration in which the sanitary cleaning device is installed on the Western-style sitting toilet bowl in the toilet device will be described as an example.

As shown in FIG. 1, the toilet device 1 according to the present embodiment includes a sanitary cleaning device 2 that cleans a local part of a human body (user) with washing water, and a toilet bowl 3 that is a Western-style sitting toilet bowl. The sanitary cleaning device 2 is provided in the toilet device 1 in a state of being installed on the toilet bowl 3. The sanitary cleaning device 2 may be detachably attached to the toilet bowl 3 or may be integrally provided with the toilet bowl 3.

The toilet bowl 3 has a concave bowl portion 3a with the upper side open. The toilet bowl 3 receives excrement such as urine and stool of the user of the toilet device 1 in the bowl portion 3a.

The sanitary cleaning device 2 includes a device main body 4 in which various devices / devices are built in a casing 5 forming a housing, and a toilet seat 6 and a toilet lid rotatably supported with respect to the casing 5 of the device main body 4. Has 7 and. The sanitary cleaning device 2 positions the device main body 4 on the rear upper side of the bowl 3a with respect to the toilet bowl 3, and opens and closes the upper open portion of the bowl 3a by rotating the toilet seat 6 and the toilet lid 7. It is provided as follows.

The casing 5 has a base plate 5a (see FIG. 3) forming the bottom thereof, and a case cover 5b that covers the base plate 5a from above. Various devices / devices built in the casing 5 are installed on the base plate 5a.

The toilet device 1 may be of a low tank type provided with a water storage tank for storing wash water behind the device main body 4. In this case, the case cover 5b of the casing 5 of the apparatus main body 4 constitutes, for example, an integral tank cover together with the tank cover portion for accommodating the water storage tank inside, or is a member separate from the tank cover portion. The tank cover is formed together with the members forming the tank cover portion.

The configuration of the sanitary cleaning device 2 will be described with reference to FIGS. 2 and 3. Note that FIG. 2 also shows the configuration of the wash water supply path and the control configuration. In FIG. 2, the water flow is shown by a solid line and the signal or electricity flow is shown by a broken line. Further, as shown in FIG. 3, the front-back, left-right, and up-down directions in the sanitary cleaning device 2 correspond to the front-back, left-right, and up-down directions in the toilet device 1 shown in FIG.

As shown in FIG. 2, the sanitary cleaning device 2 includes a control unit 10, a human body detection sensor 12, a seating detection sensor 13, a cleaning water supply unit 14, and a nozzle unit 15. These configurations are built in the casing 5. Further, the sanitary cleaning device 2 has an operation unit (not shown) provided as, for example, a remote controller.

The control unit 10 is provided with, for example, an arithmetic processing unit such as a CPU, a storage device such as a RAM, and controls the operation of each unit such as the washing water supply unit 14 and the nozzle unit 15. The control unit 10 controls the operation of each unit in response to an input signal from the operation unit based on, for example, an operation on the operation unit by the user. The communication method between the control unit 10 and the operation unit may be wired or wireless.

The human body detection sensor 12 is a sensor that detects a user who has entered the toilet room in which the toilet device 1 is installed. The human body detection sensor 12 outputs the detection signal to the control unit 10. The human body detection sensor 12 is, for example, a radio wave sensor such as a pyroelectric sensor using an infrared signal or a microwave Doppler sensor using a microwave.

The seating detection sensor 13 is a sensor that detects a user immediately before sitting on the toilet seat 6 or a user who is seated on the toilet seat 6 as a user's seat. The seating detection sensor 13 outputs the detection signal to the control unit 10. The seating detection sensor 13 is, for example, an infrared light emitting / receiving type distance measuring sensor or a switch that detects the load of the user seated on the toilet seat 6.

The washing water supply unit 14 receives water from a predetermined water supply source 9 such as a water supply, and supplies the supplied washing water (water) to the nozzle unit 15. The wash water supply unit 14 includes a valve unit 21, a heat exchanger 22, an electrolytic cell 23, and a vacuum breaker (VB) 24.

The valve unit 21 includes, for example, a flow path on-off valve and a strainer configured by a solenoid valve, and opens and closes a flow path of water supplied to the washing water supply unit 14. That is, the valve unit 21 switches between supplying and stopping the washing water supplied from the water supply source 9 by opening and closing the flow path on-off valve. The valve unit 21 opens and closes based on a control signal from the control unit 10.

The heat exchanger 22 is provided on the downstream side of the valve unit 21. The heat exchanger 22 is a heating device that has a tank 26 that receives water supplied from the water supply source 9 and heats the water in the tank 26. As shown in FIG. 3, the heat exchanger 22 has a heater 27 which is a heating element as a heating source in the tank 26, and the heater 27 heats the washing water supplied from the water supply source 9 to obtain hot water. .. That is, the heat exchanger 22 is a hot water storage heating type in which the tank 26 is a hot water storage tank.

The temperature of the hot water obtained by the heat exchanger 22 is set, for example, by operating the operation unit. In the present embodiment, the heater 27 is a sheathed heater formed in a straight rod shape, and is arranged near the bottom in the tank 26. The heater 27 generates heat when energized based on a control signal from the control unit 10.

The washing water supplied from the washing water supply unit 14 having the heat exchanger 22 to each supply destination includes water as it is supplied from the water supply source and hot water heated by the heat exchanger 22. Is done. The heat exchanger 22 may use another heating source such as a ceramic heater.

The electrolytic cell 23 is provided on the downstream side of the heat exchanger 22. The electrolytic cell 23 has a pair of electrodes and electrolyzes water supplied from the heat exchanger 22 side between the electrodes. The electrolytic cell 23 electrolyzes chloride ions contained in the washing water to generate water containing hypochlorous acid (HClO) as functional water.

The energizing operation in the electrolytic cell 23 is controlled based on the control signal from the control unit 10. The electrolytic cell 23 can also flow the supplied water to the downstream side without electrolyzing it. The electrolytic cell 23 is connected to the control unit 10 by a predetermined wiring.

The vacuum breaker 24 is of an atmospheric release type having an open portion open to the atmosphere, and prevents backflow of water supplied from the electrolytic cell 23. The water that has passed through the vacuum breaker 24 is supplied to the nozzle unit 15. In the present embodiment, as will be described later, a vacuum breaker section 50 (hereinafter referred to as “VB section 50”) having a function as a vacuum breaker 24 is provided integrally with the tank 26 of the heat exchanger 22. There is.

The nozzle unit 15 includes a local cleaning nozzle 31 forming a nozzle body, a nozzle cleaning chamber 32 as a nozzle cleaning unit, a flow path switching valve 33, and a support 34 (see FIG. 3) that supports the local cleaning nozzle 31. It has a nozzle drive unit 35 and is configured as an integral attachment body to the casing 5 (base plate 5a).

The local cleaning nozzle 31 discharges water (cleaning water) for cleaning a local part of the human body. The local cleaning nozzle 31 is formed in a substantially cylindrical rod shape, and is provided so that its longitudinal direction is the front-rear direction in a plan view. The local cleaning nozzle 31 is provided by the nozzle driving unit 35 so as to be able to move forward and backward (can appear and disappear) from the inside of the casing 5 to the inside of the bowl portion 3a of the toilet bowl 3 (see FIG. 3, arrow A1).

The local cleaning nozzle 31 has a plurality of water discharge holes 36 for discharging cleaning water on one side (front end side) in the longitudinal direction thereof. In the present embodiment, the local cleaning nozzle 31 has a first water discharge hole 36a for cleaning the buttocks, a second water discharge hole 36b for soft cleaning that gently cleans the buttocks, and a second water discharge hole 36b for cleaning the bidet as water discharge holes 36 for the human body. It has 3 water discharge holes 36c. These water discharge holes 36 are provided above the tip of the local cleaning nozzle 31. The wash water supplied to these water discharge holes 36 is discharged upward from the water discharge holes 36 and is used for local cleaning of the user sitting on the toilet seat 6.

Further, the local cleaning nozzle 31 has a fourth water discharge hole 36d as a water discharge hole 36 for the toilet bowl. The fourth water discharge hole 36d is provided below the tip of the local cleaning nozzle 31. The fourth water discharge hole 36d is used, for example, for a cleaning process in which water is discharged to the bowl portion 3a before or after the use of the toilet bowl 3 by the user. The functional water generated in the electrolytic cell 23 may be used for the cleaning treatment of the bowl portion 3a.

In the local cleaning nozzle 31, a flow path communicating with each water discharge hole 36 is formed. That is, the local cleaning nozzle 31 has, as a water supply flow path, a first water supply flow path 37a communicating with the first water discharge hole 36a, a second water supply flow path 37b communicating with the second water discharge hole 36b, and a third water discharge hole. It has a third water supply flow path 37c communicating with the hole 36c and a fourth water supply flow path 37d communicating with the fourth water discharge hole 36d. These water supply flow paths form a water supply flow path that communicates from the flow path switching valve 33 to each water discharge hole 36, and is included in the flow path that is switched by the flow path switching valve 33.

The nozzle cleaning chamber 32 is provided in a state of being fixed to the front end portion of the support 34. The nozzle cleaning chamber 32 is provided in the support 34, and cleans the local cleaning nozzle 31 with the water supplied from the water supply source 9. In the present embodiment, the nozzle cleaning chamber 32 is provided integrally with the support 34 at the front end portion of the support 34.

The nozzle cleaning chamber 32 is composed of a member that forms an internal space through which the local cleaning nozzle 31 is inserted. The nozzle cleaning chamber 32 has a water discharge port that opens facing the internal space, and by discharging cleaning water from the water discharge port, the outer peripheral surface of the local cleaning nozzle 31 is cleaned, that is, the body is cleaned. The functional water generated in the electrolytic cell 23 is appropriately used for cleaning the body of the local cleaning nozzle 31.

Water that has passed through the vacuum breaker 24 of the cleaning water supply unit 14 is supplied to the nozzle cleaning chamber 32 from the water supply source 9 via the flow path switching valve 33. Therefore, the vacuum breaker 24 and the flow path switching valve 33 are communicated with each other by a water supply path 41 (third flow path 113 described later) formed by a water supply pipe such as a tube. Further, the flow path switching valve 33 and the nozzle cleaning chamber 32 are communicated with each other by a water supply pipe 42 such as a tube forming a water supply path between them. That is, the water supply flow path provided by the water supply pipe 42 is included in the flow path switched by the flow path switching valve 33 together with the water supply flow path communicating with each water discharge hole 36 of the local cleaning nozzle 31.

The flow path switching valve 33 is provided on the downstream side of the vacuum breaker 24, and receives the supply of water (including functional water) supplied from the vacuum breaker 24. The flow path switching valve 33 switches the flow path for a plurality of spouts to which the washing water is supplied. The cleaning water supply destination includes the local cleaning nozzle 31 and the nozzle cleaning chamber 32.

The flow path switching valve 33 is provided so as to move integrally with the local cleaning nozzle 31. In the present embodiment, the flow path switching valve 33 is provided on the rear side of the local cleaning nozzle 31.

The flow path switching valve 33 includes a water supply flow path to the local cleaning nozzle 31 and a water supply flow path to the nozzle cleaning chamber 32 in the flow path for switching the water supply destination. In the present embodiment, the flow path switching valve 33 serves as a water supply flow path to the local cleaning nozzle 31, a first water supply flow path 37a, a second water supply flow path 37b, a third water supply flow path 37c, and a fourth water supply flow path. The water supply flow path 37d is provided, and the water supply flow path formed by the water supply pipe 42 is provided as the water supply flow path to the nozzle cleaning chamber 32. That is, in the present embodiment, the supply destination of the cleaning water from the flow path switching valve 33 includes a local cleaning nozzle 31 having a plurality of water discharge holes 36 and a nozzle cleaning chamber 32.

The flow path switching valve 33 has two valve discs that move relative to each other, and includes a disc valve mechanism that switches the flow path according to the positional relationship between these valve discs. The flow path switching valve 33 has a motor 38 as a drive source for the disc valve mechanism. The motor 38 is, for example, a stepping motor (pulse motor) that rotates in synchronization with pulse power.

The motor 38 is connected to the control unit 10 by a predetermined wiring, and the operation of the motor 38 is controlled by the control unit 10. That is, the flow path switching valve 33 switches the water supply flow path for the plurality of water discharge holes 36 and the water discharge ports of the nozzle cleaning chamber 32 described above based on the control signal from the control unit 10. Further, the flow path switching valve 33 has a function of adjusting the flow rate of water for each water supply destination. The structure of the flow path switching valve 33 is not particularly limited.

The support 34 is detachably provided with respect to the casing 5 to support the local cleaning nozzle 31. Specifically, the support 34 is detachably attached to the base plate 5a of the casing 5 and supports the local cleaning nozzle 31 so as to be reciprocally linearly movable in a forward-sloping inclined manner. The support 34 constitutes a support base that receives the nozzle cleaning chamber 32 installed in the nozzle unit 15 and supports the local cleaning nozzle 31 and the flow path switching valve 33 provided integrally with the local cleaning nozzle 31.

The nozzle drive unit 35 includes a nozzle motor such as an electric motor as a drive source, and is configured to move the local cleaning nozzle 31 forward and backward in the bowl portion 3a of the toilet bowl 3. Further, the nozzle drive unit 35 has a mechanism including a plurality of pulleys and a belt wound around them as a transmission mechanism for transmitting the power of the nozzle motor as a power for advancing and retreating the local cleaning nozzle 31.

The operation of the nozzle motor of the nozzle drive unit 35 is controlled by the control unit 10. That is, the advance / retreat operation of the local cleaning nozzle 31 is controlled by the control unit 10 via the nozzle motor of the nozzle drive unit 35 connected to the control unit 10. The local cleaning nozzle 31 extends into the bowl portion 3a while maintaining the inclined state in response to a switch operation of the operating portion by the user of the toilet device 1, and ejects cleaning water from the water discharge hole 36.

Here, the arrangement configuration of the device in the casing 5 in the device main body 4 of the sanitary cleaning device 2 according to the present embodiment will be described with reference to FIG. As shown in FIG. 3, a nozzle unit 15 including a local cleaning nozzle 31 is provided at the center of the left and right sides on a base plate 5a having a substantially rectangular shape with the left and right directions as the longitudinal direction in a plan view. Specifically, in the base plate 5a, the left and right middle portions on the front side are curved portions 5d having a concave shape so as to correspond to the plan view shape of the bowl portion 3a of the toilet bowl 3, and correspond to the left and right central portions of the curved portion 5d. At the position, the local cleaning nozzle 31 is provided with its longitudinal direction as the front-rear direction (advance / retreat direction) in a plan view.

A heat exchanger 22 is provided on the left side of the nozzle unit 15. The heat exchanger 22 is provided at a position closer to the rear side, and is provided so as to occupy most of the area by the tank 26 in the space on the left side of the nozzle unit 15 on the base plate 5a.

An electrolytic cell 23 is provided at a position on the left side of the rear side of the tank 26 of the heat exchanger 22. Further, a VB portion 50 having a function of a vacuum breaker 24 is provided on the right rear portion of the tank 26 as described later.

Further, a control unit 10 is provided on the right rear side on the base plate 5a. Further, a warm air drying unit 46 and a deodorizing unit 47 are arranged as wind system units in the space on the right side of the nozzle unit 15 on the base plate 5a.

The warm air drying unit 46 blows out warm air for drying the locally after cleaning of the user sitting on the toilet seat 6, and is located near the right side of the nozzle unit 15 in the front-rear direction on the base plate 5a. It extends almost the entire direction. The deodorizing unit 47 has a deodorizing member such as a deodorizing catalyst and a deodorizing filter, sucks in the air in the bowl portion 3a of the toilet bowl 3 or the air in the toilet room, and reduces the malodorous component contained in the sucked air by the deodorizing member. Let it collect, collect or disassemble.

As described above, the sanitary cleaning apparatus 2 according to the present embodiment includes a heat exchanger 22 having a tank 26 and heating the water in the tank 26, a VB unit 50 functioning as a vacuum breaker 24, and a heat exchanger 22. It is provided on the downstream side of the above, and has a water discharge unit that receives water supplied through the VB unit 50 and discharges water. In this embodiment, the water discharge unit is a local cleaning nozzle 31 and a nozzle cleaning chamber 32 that constitute the nozzle unit 15.

In the sanitary cleaning device 2 having the above configuration, the VB portion 50 is provided integrally with the tank 26. That is, the sanitary cleaning device 2 of the present embodiment has a configuration in which the vacuum breaker 24 is integrally provided with the heat exchanger 22 by the VB unit 50 (hereinafter referred to as “tank / VB integrated configuration”). .. Hereinafter, the VB unit 50 having the tank / VB integrated configuration according to the present embodiment will be specifically described.

First, the configuration of the heat exchanger 22 will be described. As described above, the heat exchanger 22 has a tank 26 having a built-in heater 27 as a hot water storage tank. The tank 26 has a substantially trapezoidal shape in front view and side view, and has a mountain shape with a gentle hem so as to gradually reduce the outer area in a plan view from the lower side to the upper side. In other words, the tank 26 has an open shape from the upper side to the lower side. In particular, in the present embodiment, the tank 26 has a substantially pyramidal outer shape with the upper portion deviated to the right with respect to the lower portion.

The tank 26 generally has a tank lower portion 51 forming a lower portion of the tank 26 and a tank upper portion 52 forming an upper portion of the tank 26. The tank lower portion 51 is a lower portion forming the outer shape of the tank 26 in a plan view, and is an enlarged portion formed so as to gently project into the tank upper portion 52 in a flange shape. The tank upper portion 52 is a portion along a substantially rectangular parallelepiped outer shape in which the slope of the peripheral wall portion thereof is relatively steep with respect to the tank lower portion 51, and has a substantially horizontal top surface portion 53.

The tank 26 has a concave portion 54 on the left rear side thereof. The concave portion 54 is a portion that forms a notch shape with respect to a substantially rectangular shape having a longitudinal direction in the left-right direction with respect to the outer shape of the tank 26 in a plan view. The concave portion 54 covers a range of approximately 2/3 on the left side with respect to the overall external dimension of the tank 26 in the left-right direction, and is substantially rearward with respect to the overall external dimension of the tank 26 in the front-rear direction. It is formed so as to cover a range of 1/3. The tank 26 gently changes the plan view shape from the lower end portion to the upper end portion while maintaining the irregular rectangular shape of the tank 26 having the concave shape portion 54 to some extent, and the top surface portion 53 also has the concave shape portion 54. It has a deformed rectangular (approximately trapezoidal) outer shape with a slanted rear left side.

The tank 26 is fixed at a predetermined position on the base plate 5a by a predetermined fixing structure. In the present embodiment, for example, the tank 26 has a fixing projecting piece portion 26a projecting outward (forward) on the front side of the lower portion thereof, and the fixing projecting piece portion 26a is placed on the base plate 5a. The boss portion 5e is fixed to the erected boss portion 5e by a bolt 26c.

In the tank 26, near the bottom, that is, at the wider lower end of the tank lower 51, the straight rod-shaped heater 27 extends substantially from the right rear corner to the left front corner of the tank 26 in a plan view. It is arranged horizontally in a manner along the diagonal line (see FIG. 3).

In the tank 26, a float switch 55 is provided in a hanging state from the central portion of the top surface portion 53. The float switch 55 is for detecting the water level in the tank 26, and when it detects that the water level in the tank 26 has reached a predetermined water level by the operation of the float, it outputs a predetermined signal. The float switch 55 extends a signal line 55a for outputting a signal to the control unit 10 from the outside of the top surface portion 53, and is connected to the control unit 10 via the signal line 55a and the like. At the end of the signal line 55a, a connector 55b for receiving the connection of other wiring is provided. Further, on the top surface portion 53, a thermistor or the like that detects the temperature of water in the tank 26 and outputs the detection signal is arranged.

The tank 26 has an inflow port 57 at the lower part on the right front side. The inflow port portion 57 has a tubular connecting pipe portion 57a that opens toward the left side, and the connecting pipe portion 57a is connected to a piping member such as a water supply tube to the tank 26. That is, the water that has passed through the valve unit 21 is guided by the piping member and is supplied from the inflow port portion 57 into the tank 26. Inside the tank 26, a straightening vane is provided in a portion near the inflow port 57, and the water flowing in from the inflow port 57 collects in the tank 26 via the straightening vane and is inside the tank 26. Raise the water level of.

Subsequently, the VB unit 50 will be described. The VB portion 50 is provided above the top surface portion 53 of the tank 26. In the present embodiment, the VB portion 50 is provided at the corner portion on the diagonally right rear side of the float switch 55 on the top surface portion 53.

The VB portion 50 has a VB lower member 61 forming a lower portion of the VB portion 50 and a VB cap member 62 forming an upper portion of the VB portion 50 as constituent members forming the housing thereof. The VB portion 50 has a horizontal partition wall portion 63 at the lower portion 51 of the tank. The partition wall portion 63 vertically divides the internal space of the VB portion 50 into a first space portion that communicates with the internal space 26s of the tank 26 and a second space portion that communicates with the water discharge portion of the nozzle unit 15.

That is, the VB portion 50 forms a lower space portion 50a, which is a first space portion, on the lower side of the partition wall portion 63 by the VB lower member 61 and the tank 26. Further, the VB portion 50 forms an upper space portion 50b, which is a second space portion, by the VB lower member 61 and the VB cap member 62 on the upper side of the partition wall portion 63.

As shown in FIGS. 9 to 14, the VB lower member 61 has a main body portion 64 which is a portion including a partition wall portion 63 and which is a substantially cylindrical portion whose vertical direction is a cylindrical axial direction. The main body portion 64 has an upper peripheral wall portion 65 forming a concave upper space 65a with the upper side open side together with the partition wall portion 63, and a lower peripheral wall portion 65 forming a concave lower space 66a with the lower side open side together with the partition wall portion 63. It has a part 66.

The upper peripheral wall portion 65 is a portion that forms an inner peripheral wall surface 65b perpendicular to the partition wall portion 63. The inner peripheral wall surface 65b has a deformed circumferential shape including a concave portion that is partially recessed inward in the circumferential direction in a plan view (see FIG. 13). In the upper peripheral wall portion 65, the upper space 65a is mainly formed by the upper surface 63a of the partition wall portion 63 and the inner peripheral wall surface 65b of the upper peripheral wall portion 65.

The lower peripheral wall portion 66 is a portion that protrudes downward from the partition wall portion 63 in a cylindrical shape. In the lower peripheral wall portion 66, the lower space 66a is mainly formed by the lower surface 63b of the partition wall portion 63 and the inner peripheral wall surface portion 66b of the lower peripheral wall portion 66. On the inner peripheral side of the lower peripheral wall portion 66, the lower portion, that is, the portion on the opening end side is a large diameter portion 66d in which the inner diameter is expanded in a stepped manner with respect to the upper small diameter portion 66c.

As shown in FIGS. 9, 15 and 16, the VB cap member 62 has a cap body portion 67 formed by an upper surface portion 68 and a peripheral wall portion 69. The cap main body 67 forms a concave space 67a with the lower side as the open side. The space 67a is mainly formed by the lower surface 68a of the upper surface portion 68 and the inner peripheral wall surface 69a of the peripheral wall portion 69.

The VB cap member 62 has a ventilation path portion 71 that forms a ventilation path 70 for opening to the atmosphere in the VB portion 50. The ventilation path portion 71 is provided above the upper surface portion 68 in the VB cap member 62, and forms a ventilation path 70 that goes upward and to the right from the central portion of the upper surface portion 68 as a space that communicates with the space 67a. To do. The ventilation path portion 71 is projected above the upper surface portion 68 along a square tubular outer shape with the left-right direction as the longitudinal direction, and the tip end side is projected to the right.

The ventilation path portion 71 opens the ventilation path 70 to the outside by the opening 72 on the protruding tip side, and opens the lower space portion 50a formed by the space 67a in the VB portion 50 to the atmosphere. In the configuration in which the VB portion 50 is provided at the right rear corner of the tank 26, the opening 72 is located above the right rear corner of the tank 26. At the tip of the ventilation path portion 71, a plate-shaped hanging portion 73 having a shape along a substantially right-angled triangular shape with the front lower side as the apex angle portion is formed in the right side view. The hanging portion 73 has a plate surface 73a on the right side flush with the opening end surface 72a of the opening 72 facing to the right.

The lower space portion 50a will be described. The lower space portion 50a is formed by attaching the VB lower member 61 to the tank 26. The tank 26 has a boss-shaped opening 75 that protrudes upward in a cylindrical shape on the top surface portion 53 as a portion to be attached to the VB lower member 61 (see FIG. 9). The boss-shaped opening 75 is a portion of the inner peripheral wall surface that forms a tubular opening 75a whose vertical direction is the tubular axis direction, and opens the internal space 26s of the tank 26 upward.

In the top surface portion 53, a circumferential annular groove portion 76 is formed on the outer peripheral side of the base portion of the boss-shaped opening portion 75. The annular groove portion 76 is formed by a diameter-expanded portion 75c having a boss-shaped opening 75 at a base end portion, a peripheral wall portion 75d formed in a circumferential shape on the outside of the diameter-expanded portion 75c, and a bottom surface portion 75e between them. It is formed.

In this way, the VB lower member 61 fits the boss-shaped opening 75 into the lower peripheral wall portion 66 with respect to the tank 26 having the boss-shaped opening 75, and the tip portion of the lower peripheral wall portion 66 is inserted into the annular groove portion 76. It is fixed to the top surface portion 53 in a state of being fitted to the top surface portion 53. The tip of the boss-shaped opening 75 is fitted into the small diameter portion 66c of the lower peripheral wall portion 66. Further, the boss-shaped opening 75 is lowered with its upper end surface portion 75b positioned below the lower surface portion 63b of the partition wall portion 63, that is, with a distance between the upper end surface portion 75b and the lower surface portion 63b. It is inserted in the side peripheral wall portion 66.

The VB lower member 61 is fixed to the tank 26 at two points by bolts 77. Specifically, in the VB lower member 61, a bolt hole 78 through which the bolt 77 is passed is formed on the outside of the main body portion 64. On the other hand, on the tank 26 side, a cylindrical boss portion 79 forming an upwardly opened female screw portion protrudes upward at a portion outside the annular groove portion 76 around the boss-shaped opening 75. It is set up.

Then, the bolt 77 penetrates the bolt hole 78 of the VB lower member 61 and is screwed into the boss portion 79, so that the VB lower member 61 is fixed to the top surface portion 53 of the tank 26. The fixing portions by the bolts 77 are provided at two locations, a right rear side and a left front side, via a substantially circumferential center position along which the main body portion 64 is aligned in a plan view. As described above, the upper peripheral wall portion 65 having an irregular circumferential shape in a plan view has a concave portion that serves as a relief portion for the bolt 77.

Further, an O-ring 80 is interposed at the fitting portion between the boss-shaped opening 75 and the lower peripheral wall portion 66. The O-ring 80 is fitted on the upper side of the enlarged diameter portion 75c with respect to the boss-shaped opening 75, and has an outer peripheral surface of the boss-shaped opening 75 and an inner peripheral surface of the large diameter portion 66d of the lower peripheral wall portion 66. Intervenes between. The lower space 50a is sealed by the O-ring 80.

With such a configuration, the lower space portion 50a is mainly formed by the upper end surface portion 75b of the boss-shaped opening 75, the inner peripheral surface of the small diameter portion 66c of the lower peripheral wall portion 66, and the lower surface 63b of the partition wall portion 63. It is formed. The lower space portion 50a is a relatively narrow flat space portion. With respect to the lower space portion 50a, the internal space 26s of the tank 26 is opened facing upward by the opening 75a of the boss-shaped opening 75.

The upper space portion 50b will be described. The upper space portion 50b is formed by a VB lower member 61 and a VB cap member 62. The VB cap member 62 has a shape and dimensions such that the upper peripheral wall portion 65 of the VB lower member 61 and the end face portions on the opening side of the peripheral wall portion 69 are aligned with each other. That is, the peripheral wall portion 69 of the VB cap member 62 has a deformed circumferential shape corresponding to the plan view shape of the upper peripheral wall portion 65.

A ridge portion 69d projecting downward is formed on the lower end surface portion of the peripheral wall portion 69 of the VB cap member 62 over the entire circumference of the peripheral wall portion 69. On the other hand, a groove portion 65d is formed on the upper end surface portion of the upper peripheral wall portion 65 of the VB lower member 61 over the entire circumference of the upper peripheral wall portion 65.

The VB lower member 61 and the VB cap member 62 fit the ridge portion 69d and the groove portion 65d by aligning the end face portions of the lower peripheral wall portion 66 and the peripheral wall portion 69 on the opening side, and the fitting action thereof. They are fixed to each other in a horizontal position. As a result, the housing of the VB portion 50 integrated with the VB lower member 61 and the VB cap member 62 is formed. The VB lower member 61 and the VB cap member 62 are hermetically fixed to each other by a predetermined method such as adhesive fixing using an adhesive.

With such a configuration, mainly the upper surface 63a of the partition wall portion 63, the inner peripheral wall surface 65b of the upper peripheral wall portion 65 of the VB lower member 61, and the inner peripheral wall surface 69a and the upper surface portion 68 of the peripheral wall portion 69 of the VB cap member 62. The upper space portion 50b is formed by the lower surface 68a of the above. That is, the upper space portion 50b is a space portion in which the upper space 65a of the upper peripheral wall portion 65 and the space 67a of the VB cap member 62 are combined. A ventilation path 70 formed by the ventilation path portion 71 communicates with the upper space portion 50b above the upper space portion 50b.

Further, the VB unit 50 has a strainer 81, a straightening vane 82, and a float 83. The strainer 81, the straightening vane 82, and the float 83 are all provided in the upper space 50b.

The strainer 81 has a strainer main body 84 which is a flat mesh portion, and a peripheral wall portion 85 provided around the strainer main body 84. The strainer main body portion 84 is provided at an intermediate portion in the height direction with respect to the peripheral wall portion 85. Therefore, the strainer 81 is formed so as to form a flat substantially "H" shape in a cross-sectional view (see FIG. 8). The strainer main body 84 is provided with linear rib portions 84a that are orthogonal to each other.

The peripheral wall portion 85 has a shape that follows the shape of the inner peripheral wall surface 65b of the upper peripheral wall portion 65 of the VB lower member 61. As a result, the strainer 81 is provided in a state where the peripheral wall portion 85 is fitted along the inner peripheral wall surface 65b of the upper peripheral wall portion 65 and in the upper space 65a of the upper peripheral wall portion 65.

The straightening vane 82 is provided above the strainer 81. The straightening vane 82 is a plate-shaped member having a shape along the plan view shape of the inner peripheral wall surface 65b of the upper peripheral wall portion 65, and has a circular water passage hole 82a in a substantially central portion thereof. The outer peripheral edge of the straightening vane 82 is formed by an inner peripheral side portion of the upper end portion of the upper peripheral wall portion 65 of the VB lower member 61 and an inner peripheral side portion of the lower end portion of the peripheral wall portion 69 of the VB cap member 62. It is provided in a positioned state by being sandwiched.

In the straightening vane 82, a support projection 82b for supporting the float 83 from below is formed around the water passage hole 82a. The support protrusions 82b are ridges along an arc shape in a plan view so as to follow the circumferential shape of the water passage hole 82a, and are provided at four locations at substantially equal intervals in the circumferential direction.

The float 83 is provided on the upper side of the straightening vane 82. The float 83 has a main body portion 83a having a cross-shaped cross-sectional shape, which is an upper portion thereof, and a diameter-expanded portion formed under the main body portion 83a, which has a substantially disk-like outer shape. It has a flange portion 83b and has a substantially hat shape in a vertical cross-sectional view as a whole. That is, the main body portion 83a is an upwardly protruding portion on the upper side of the flange portion 83b.

A circular recess 83c is formed below the flange portion 83b so as to follow the outer shape of the flange portion 83b. The recess 83c has a bottom surface 83d which is a horizontal plane located above the lower end surface of the float 83.

The float 83 positions the main body portion 83a in the upper space portion 62a which is a continuous space portion above the space 67a of the VB cap member 62, and also provides the support projection 82b of the straightening vane 82 within the formation range of the recess 83c. It is provided so that it can be raised and lowered while it is positioned. The upper space portion 62a is a substantially cylindrical space portion communicating with the base end side of the ventilation path 70 of the ventilation path portion 71 of the VB cap member 62, and opens downward in a circular shape so as to face the space 67a. ing. The upper space portion 50b and the ventilation path 70 communicate with each other via the upper space portion 62a.

The float 83 is usually supported on the straightening vane 82 in a state where the support projection 82b is in contact with the bottom surface 83d of the recess 83c. Then, the float 83 rises by receiving the pressure of water flowing from below into the water passage hole 82a of the straightening vane 82 from the state of being seated on the support projection 82b. In the VB cap member 62, a protrusion 62b is formed as a portion to be contacted by the raised float 83. The protrusion 62b is formed as an annular ridge portion along the opening shape around the lower opening of the upper space 62a. The protrusion 62b comes into contact with the upper surface of the flange 83b of the raised float 83.

The VB portion 50 having the above configuration has an outlet 91 for supplying water from the lower space portion 50a to a predetermined external device, and a water outlet 91 for flowing water that has passed through the external device into the upper space portion 50b. It has an inflow port 92 and an external outflow port 93 for supplying water from the upper space portion 50b to the water discharge portion (see FIGS. 8 and 16). The outflow port 91 is provided in a portion forming the lower space portion 50a, and the inflow port 92 and the external outflow port 93 are provided in a portion forming the upper space portion 50b. That is, the VB portion 50 has an outlet 91 for supplying water to a predetermined external device provided outside the VB portion 50 in a portion forming the lower space portion 50a, and forms the upper space portion 50b. The portion has an inflow port 92 for flowing water from an external device and an external outflow port 93 for supplying water to the nozzle unit 15.

In the present embodiment, the external device to which water is supplied from the lower space portion 50a by the outlet 91 is an electrolytic cell 23 that produces predetermined functional water. The electrolytic cell 23 has a substantially rectangular thick plate-like flat outer shape, and includes a case body main body 101 that accommodates a pair of electrodes and the like, and an inflow port 102 provided on one side of the case main body 101 in the longitudinal direction. It has an outlet portion 103 provided on the other side in the same longitudinal direction. The case body main body 101, the inflow port 102, and the outflow port 103 are integrally formed of, for example, common members. The electrolytic cell 23 generates functional water by electrolyzing the water flowing into the case body main body 101 from the inflow port 102 between the electrodes, and discharges the water from the outflow port 103.

The inflow port portion 102 has an inflow pipe portion 102a formed in a tubular shape as a connecting pipe portion on the inflow side. The inflow pipe portion 102a is formed so as to form an obtuse angle with a substantially rectangular plate-shaped portion in the case body main body 101 from the tip of the inclined case portion 101a so as to follow the plate surface of the case body main body 101. It is projected toward one side in the longitudinal direction of the body body 101.

The outflow port portion 103 has a tubular protrusion 103a that protrudes in a tubular shape from one plate surface side with respect to the case body main body 101, and an outflow pipe portion 103b that protrudes from the tubular protrusion 103a. The outflow pipe portion 103b is a portion formed in a substantially tubular shape, and is a connection pipe portion on the outflow side that protrudes outward in the longitudinal direction of the case body main body 101.

The arrangement configuration of the electrolytic cell 23 in the sanitary cleaning device 2 according to the present embodiment will be described. As shown in FIG. 6 and the like, the electrolytic cell 23 is provided at a position on the left side of the VB portion 50. Further, the electrolytic cell 23 is provided so that the inflow port 102 is located on the left side and the outflow port 103 is located on the right side, and the longitudinal direction of the case body main body 101 is aligned in the left-right direction. Further, the electrolytic cell 23 is provided in an inclined shape so that the plate surface of the case body main body 101 having a substantially rectangular thick plate-like outer shape becomes an inclined surface that descends forward.

The electrolytic cell 23 is arranged in the following manner in relation to the tank 26 and the VB portion 50. The electrolytic cell 23 is arranged above the rear end of the tank 26 in the front-rear direction. The electrolytic cell 23 is arranged so as to cross the inclined outer line formed by the rear portion of the concave portion 54 in the left-right direction with respect to the tank 26 in a plan view.

In a plan view, the electrolytic cell 23 has a substantially right half portion in the longitudinal direction located in the upper vicinity of a posterior protruding shape portion in the right portion of the tank 26 formed by the concave shape portion 54. In other words, in the electrolytic cell 23, the concave portion 54 positions the substantially left half portion in the longitudinal direction outside the range of the outer shape of the tank 26 in a plan view. That is, in the plan view, most of the left side of the electrolytic cell 23 is located outside the range of the outer shape of the tank 26.

Further, the electrolytic cell 23 is provided so that substantially the entire case body main body 101 is positioned at substantially the same height as the VB lower member 61 in the vertical direction. Further, the electrolytic cell 23 is provided in such a posture that the longitudinal direction of the case body main body 101 is along the horizontal direction. That is, the electrolytic cell 23 is provided so as to project to the left with respect to the VB lower member 61 provided on the upper side of the top surface portion 53 of the tank 26, and is provided on the tank 26 at a position directly above the tank 26. On the other hand, it is provided in a state in which substantially the entire body is floated (separated state).

As described above, the electrolytic cell 23 is provided so that at least a part of the electrolytic cell 23 is located outside the outer range of the tank 26 of the heat exchanger 22 in a plan view. In particular, in the present embodiment, the electrolytic cell 23 has the left majority portion located outside the outer range of the heat exchanger 22. That is, most of the projected area of the electrolytic cell 23 in the plan view is located outside the outer range of the tank 26.

On the other hand, in a plan view, the electrolytic cell 23 has a substantially rectangular outer shape (FIGS. 3, FIG. 5, two-dot chain line) of the tank 26, which is virtualized when the concave portion 54 is not formed in the tank 26. It is located within the range of the virtual line X1 indicated by. That is, the electrolytic cell 23 is located on the front side of the trailing edge of the tank 26 in the front-rear direction, and on the left-right inside (right side) of the left edge of the tank 26 in the left-right direction. , It is located within the range of the entire front-rear width and left-right width of the tank 26.

Further, in the electrolytic cell 23, the wirings 104a and 104b electrically connected to the electrodes in the case body 101 extend outward from the case body 101. The wiring 104a connected to one of the electrodes extends from the front side (upper side) of the case body 101 at the left end of the case body 101. The wiring 104b connected to the other electrode extends from the rear side (lower side) of the case body 101 at the right end of the case body 101. The two wires 104a and 104b are connected to the control unit 10 via a connector 105 or the like.

Next, the flow path configuration between the VB section 50 and the electrolytic cell 23 and the flow path configuration from the VB section 50 to the downstream side will be described. As described above, in the VB portion 50, in the configuration in which the lower space portion 50a has the outlet 91 and the upper space portion 50b has the inflow port 92 and the external outlet 93, the following flow paths are provided. ing. That is, the first flow path 111 which is the water supply flow path from the outlet 91 of the VB section 50 to the electrolytic cell 23, and the second flow path which is the return flow path from the electrolytic cell 23 to the inflow port 92 of the VB section 50. A third flow path 113, which is a water supply flow path from the external outlet 93 of the VB unit 50 and the VB unit 50 to the nozzle unit 15, is provided.

The first flow path 111 will be described. The first flow path 111 is a flow path that guides the water in the lower space portion 50a of the VB portion 50 to the electrolytic cell 23 by the outflow port 91. That is, the outlet 91 is an opening for supplying water from the lower space portion 50a to the electrolytic cell 23.

The outflow port 91 opens in a circular shape at a portion on the left side of the inner peripheral surface of the upper small diameter portion 66c in the lower peripheral wall portion 66 of the VB lower member 61 (see FIGS. 8 and 12). The outflow port 91 is an opening of the outflow flow path formed linearly from the lower peripheral wall portion 66 to the left in the VB lower member 61, facing into the lower space portion 50a (lower space 66a). ..

The VB lower member 61 has a tubular connecting pipe portion 95 that linearly protrudes to the left from the lower peripheral wall portion 66 as a portion that forms an outflow flow path from the lower peripheral wall portion 66 to the left. That is, the connecting pipe portion 95 extends linearly from the main body portion 64 of the VB lower member 61 toward the left along the horizontal direction, and the base end side thereof is used as the outlet 91 as the lower space portion 50a (lower space). It is opened in 66a). The connecting pipe portion 95 is provided at a position substantially central to the main body portion 64 in the front-rear direction. A recess 63c is formed in the vicinity of the outlet 91 on the lower surface 63b of the partition wall 63 so as to increase the area of the open end surface of the outlet 91.

One end (upstream side) of the electrolytic cell water supply tube 115 constituting the first flow path 111 is communicatively connected to the connection pipe portion 95. The electrolytic cell water supply tube 115 has a connecting pipe portion 95 inserted into the end portion on the upstream side thereof, and is fixed to the connecting pipe portion 95 by a fixture 116a such as a binding band. The other end (downstream side) of the electrolytic cell water supply tube 115 is communicatively connected to the inflow pipe portion 102a of the electrolytic cell 23. The inflow pipe portion 102a is inserted into the downstream end of the electrolytic cell water supply tube 115, and is fixed to the inflow pipe portion 102a by a fixture 116b such as a binding band.

The electrolytic cell water supply tube 115 extends from above the top surface 53 of the tank 26 provided with the VB portion 50 toward the left, and extends along the wall surface on the rear side of the tank 26 forming the concave portion 54. The inflow pipe is curved so that it descends diagonally downward to the left, then rises, then folds back to form a hook when viewed from the rear, with the downstream end facing the right and protruding to the left. It is connected to 102a. Similar to the electrolytic cell 23, the electrolytic cell water supply tube 115 has a substantially rectangular outer shape (FIG. 3, FIG. 3) of the tank 26, which is virtualized when the concave portion 54 is not formed in the tank 26 in a plan view. (See FIG. 5, virtual line X1) so that the whole is located within the range.

The second flow path 112 will be described. The second flow path 112 is a flow path that guides the water flowing out of the electrolytic cell 23 by the inflow port 92 into the upper space portion 50b of the VB portion 50. That is, the inflow port 92 is an opening for allowing water that has passed through the electrolytic cell 23 to flow into the upper space portion 50b.

The inflow port 92 is open to the left rear portion in the partition wall portion 63 and the upper peripheral wall portion 65 of the VB lower member 61. (See FIGS. 8 and 10). The inflow port 92 is formed in a range extending from the upper surface 63a of the partition wall 63 to the inner peripheral wall surface 65b of the upper peripheral wall portion 65. That is, the inflow port 92 is an opening in which an opening facing upward from the partition wall portion 63 and an opening facing sideways (right side) from the upper peripheral wall portion 65 are combined. Therefore, a recessed portion 63d forming a part of the inflow port 92 is formed in a portion on the left rear side of the partition wall portion 63. The inflow port 92 is an opening facing into the upper space portion 50b (upper space 65a) of the inflow flow path formed linearly from the upper peripheral wall portion 65 to the left in the VB lower member 61.

Further, in order to form the inflow port 92 with respect to the upper space portion 50b, a notch portion 85a is formed in the peripheral wall portion 85 in the strainer 81 provided in the upper space portion 50b. The notch 85a is a portion on the left rear side of the peripheral wall portion 85, and is formed on a portion of the peripheral wall portion 85 below the strainer main body portion 84 so as to correspond to the formation portion of the inflow port 92. That is, the inflow port 92 is opened at a position below the strainer main body 84.

The VB lower member 61 has a cylindrical insertion port 97 that linearly protrudes to the left from the upper peripheral wall portion 65 as a portion that forms an inflow flow path from the upper peripheral wall portion 65 to the left. That is, the insertion port portion 97 projects horizontally from the main body portion 64 of the VB lower member 61 toward the left as a tubular portion with the left-right direction as the tubular axial direction, and the base end side thereof is used as the inflow port 92. It is opened in the upper space portion 50b (upper space 65a). The insertion port portion 97 is provided at a position at the rear portion of the main body portion 64 in the front-rear direction.

An outflow pipe portion 103b provided in the case body main body portion 101 of the electrolytic cell 23 is communicated with the insertion port portion 97. The outlet portion 97 is connected to the outflow pipe portion 103b by receiving the insertion of the outflow pipe portion 103b (see FIG. 19).

The outflow pipe portion 103b is connected and fixed in a watertight manner while being inserted into the insertion port portion 97 by a predetermined engagement shape such as uneven fitting with the insertion port portion 97. Specifically, as shown in FIG. 19, in the outflow pipe portion 103b, a ridge portion 103c along the circumferential direction is partially formed on the outer peripheral surface portion thereof in the circumferential direction. On the other hand, on the insertion port 97 side, an elongated hole-shaped opening 97a for fitting the ridge 103c is formed along the circumferential direction. The outflow pipe portion 103b is inserted into the insertion port portion 97 and the ridge portion 103c is fitted into the opening portion 97a so that the outflow pipe portion 103b is engaged and fixed to the insertion port portion 97.

In this way, in the second flow path 112, the electrolytic cell 23 is directly connected to the VB portion 50. That is, the difference in the electrolytic cell 23 is that the outflow pipe portion 103b of the outflow port portion 103 integrally formed with the case body main body portion 101 is formed as a part of the VB lower member 61 constituting the housing of the VB portion 50. By inserting and fitting into the inlet portion 97, the VB portion 50 is directly connected to the VB portion 50 without using a piping member such as a tube.

According to such a configuration, the electrolytic cell 23 is supported in a cantilevered manner with respect to the VB lower member 61 of the VB portion 50, and is projected horizontally from the VB portion 50 to the left. It has become. In this way, the electrolytic cell 23 is arranged and supported as an integral part with respect to the housing of the VB portion 50.

The third flow path 113 will be described. The third flow path 113 is a flow path that guides the water in the upper space portion 50b of the VB portion 50 to the nozzle unit 15 by the external outlet 93. That is, the external outlet 93 is an opening for supplying water from the upper space portion 50b to the nozzle unit 15 having the water discharge portion.

The external outlet 93 opens in a circular shape at a portion on the right front side of the inner peripheral surface of the peripheral wall portion 69 of the VB cap member 62 (see FIG. 16). The external outlet 93 is an opening facing into the upper space 50b (space 67a) of the outflow flow path formed linearly from the peripheral wall portion 69 to the right diagonally forward in the VB cap member 62.

The VB cap member 62 has a tubular delivery pipe portion 99 that linearly protrudes diagonally forward to the right from the peripheral wall portion 69 as a portion that forms an outflow flow path diagonally forward to the right from the peripheral wall portion 69. That is, the delivery pipe portion 99 extends linearly from the cap main body portion 67 of the VB cap member 62 toward the diagonally forward right direction, and its base end side is used as an external outlet 93 in the upper space portion 50b (space 67a). It is open. The delivery pipe portion 99 has a reduced diameter connecting pipe portion 99a at its tip. A recess 68b is formed in the vicinity of the external outlet 93 on the inner surface (lower surface) of the upper surface portion 68 so as to widen the area of the open end surface of the external outlet 93.

One end (upstream side) of the nozzle water supply tube 117 constituting the third flow path 113 is communicatively connected to the delivery pipe portion 99. The nozzle water supply tube 117 is fixed to the delivery pipe portion 99 in a state where the connection pipe portion 99a of the delivery pipe portion 99 is inserted into the end portion on the upstream side thereof. The other side (downstream side) of the nozzle water supply tube 117 is communicatively connected to the flow path switching valve 33 of the nozzle unit 15. The nozzle water supply tube 117 is arranged so as to bend diagonally forward to the right and then to the rear along the projecting direction of the delivery pipe portion 99 and toward the rear portion of the nozzle unit 15.

The flow of water from the heat exchanger 22 to the nozzle unit 15 with the above-mentioned flow path configuration will be described. As shown in FIG. 18, the flow of water from the heat exchanger 22 to the nozzle unit 15 is as follows: heat exchanger 22 → lower space 50a of VB section 50 → electrolytic cell 23 → upper space 50b of VB section → nozzle. The order is unit 15. The details are as follows.

As shown in FIG. 18, first, the water in the tank 26 of the heat exchanger 22 is supplied to the lower space portion 50a of the VB portion 50 (see arrow F0). That is, as shown in FIG. 8, the water level in the tank 26 rises due to the water supply to the tank 26, so that the water in the tank 26 flows into the lower space 50a from the opening 75a of the boss-shaped opening 75. (See arrow A1).

The water in the lower space 50a is supplied to the electrolytic cell 23 by the first flow path 111 (see FIG. 18, arrow F1). That is, as shown in FIG. 7, the water in the lower space portion 50a flows out from the outflow port 91 through the outflow flow path by the connecting pipe portion 95 (see FIG. 7, arrow A2), and enters the electrolytic cell water supply tube 115. It is supplied from the inflow port 102 into the electrolytic cell 23 through the inlet. Here, the outflow direction of water from the inside of the lower space portion 50a of the VB portion 50 to the left is a horizontal direction following the protruding direction of the connecting pipe portion 95 (see FIG. 13).

The water flowing out of the electrolytic cell 23 is supplied to the upper space portion 50b of the VB portion 50 by the second flow path 112 (see FIG. 18, arrow F2). That is, as shown in FIG. 7, the water in the electrolytic cell 23 enters the upper space portion 50b from the inflow port 92 via the connecting portion between the ridge portion 103c of the outflow port portion 103 and the insertion port portion 97. Inflow (see FIG. 7, arrow A3). As described above, the first flow path 111 is the water supply flow path from the VB section 50 to the electrolytic cell 23, while the second flow path 112 is the return flow path from the electrolytic cell 23 to the VB section 50. .. Here, the inflow direction of water to the right into the upper space portion 50b of the VB portion 50 is a horizontal direction following the protruding direction of the insertion port portion 97 (see FIG. 13). That is, the outflow direction of water from the lower space portion 50a of the VB portion 50 to the left and the inflow direction of water to the right into the upper space portion 50b of the VB portion 50 are both in the left-right direction. It is horizontal along and parallel to each other.

The water flowing into the upper space 50b from the inflow port 92 passes through the strainer main body 84 of the strainer 81, passes through the water passage hole 82a of the rectifying plate 82, pushes up the float 83 by water pressure, and rectifies in the upper space 50b. It flows into the space above the plate 82 (see FIG. 8, arrow A4). Here, the float 83 separates from the support protrusion 82b of the straightening vane 82 by rising and comes into contact with the protrusion 62b of the VB cap member 62.

The water that has flowed into the space above the straightening vane 82 in the upper space 50b is supplied to the nozzle unit 15 by the third flow path 113 (see FIG. 18, arrow F3). That is, as shown in FIG. 7, the water in the upper space 50b flows out from the external outlet 93 by the outflow flow path by the delivery pipe 99 (see arrow A5), passes through the nozzle water supply tube 117, and passes through the nozzle water supply tube 117. It is supplied to the nozzle unit 15. The water supplied to the nozzle unit 15 by the third flow path 113 is supplied to the local cleaning nozzle 31 or the nozzle cleaning chamber 32 via the flow path switching valve 33.

As described above, in the sanitary cleaning device 2 according to the present embodiment, in the VB portion 50 provided integrally with the tank 26, the space inside the housing is vertically partitioned by the partition wall portion 63, and the space inside the partition wall portion 63 is below. The lower space portion 50a is interposed in the path from the tank 26 to the electrolytic cell 23, and the upper space portion 50b above the partition wall portion 63 is interposed in the path from the electrolytic cell 23 to the nozzle unit 15. That is, the internal space of the VB portion 50 is divided into a room that receives water from the tank 26 and is connected to the electrolytic cell 23 by the partition wall portion 63 and a room that receives water from the electrolytic cell 23 and is connected to the nozzle unit 15. It is divided.

In this way, the sanitary cleaning device 2 has a flow path configuration between the tank 26 and the nozzle unit 15 so that the water flowing from the tank 26 into the VB section 50 once flows out from the VB section 50 to the outside, and the electrolytic cell 23 Is provided, and then returned to the VB unit 50 and then supplied to the nozzle unit 15 side. In such a configuration, the portion of the VB portion 50 above the partition wall portion 63, that is, the portion forming the upper space portion 50b becomes a portion that functions as the original vacuum breaker 24.

Next, the configuration of the drainage flow path (hereinafter referred to as “VB drainage flow path”) from the VB unit 50 included in the sanitary cleaning device 2 will be described. The VB drainage flow path is a flow path for guiding the water discharged from the opening 72 of the ventilation path portion 71 provided in the upper part of the VB portion 50 to a predetermined place. The ventilation path portion 71 normally does not function as a water channel, and for example, a small amount of water is discharged so as to drip from the opening 72 at the time of abnormality.

As described above, the VB portion 50 has an opening 72 that functions as a drain port at a position above the tank 26. That is, in the present embodiment, the opening 72 of the ventilation path portion 71 provided on the upper side of the VB portion 50 functions as a drain port in the event of an abnormality such as an overflow of the VB portion 50. The tank 26 has a tank-side drainage channel 130 as a drainage channel that guides the water discharged from the opening 72 to a predetermined position.

In particular, in the present embodiment, the VB provided in the VB portion 50 is provided between the opening 72 of the ventilation path portion 71 provided in the VB portion 50 and the tank-side drainage flow path portion 130 provided in the tank 26. A side drainage channel 120 is interposed. That is, the VB drainage flow path of the present embodiment has a VB side drainage flow path portion 120 forming a portion on the upstream side thereof and a tank side drainage flow path portion 130 forming a portion on the downstream side of the VB drainage flow path. The VB drainage channel is formed so that the water dropped from the opening 72 flows by gravity as a whole.

The VB side drainage flow path portion 120 is provided on the right side of the main body portion 64 as a part of the VB lower member 61 constituting the VB portion 50, and is an inclined flow path that descends forward from the right side to the front side of the main body portion 64. Is forming. The VB side drainage flow path portion 120 has a bottom surface portion 121 formed along the flow path direction and a side wall surface portion 122 formed so as to surround the bottom surface portion 121, and these portions form a gutter shape as a whole. It is configured in.

The VB side drainage flow path portion 120 has, as a plan view shape portion, a linear upstream side flow path portion 123 which is a portion on the rear side (upstream side) of the VB side drainage flow path portion 120 and a VB side drainage flow path portion 120. It has a curved downstream flow path portion 124 which is a front side (downstream side) portion of the portion 120. The upstream side flow path portion 123 and the downstream side flow path portion 124 are continuously formed so as to form a smoothly continuous inclined bottom surface portion 121.

The upstream side flow path portion 123 is a linear flow path portion that tangentially protrudes rearward with respect to the arc shape of the upper peripheral wall portion 65 on the right side of the upper peripheral wall portion 65. The upstream side flow path portion 123 is a portion that receives water discharged from the opening 72 and falls. The opening end surface 72a of the opening 72 forming a vertical plane is located at the center of the upstream flow path portion 123 in a plan view.

Further, in the upstream side flow path portion 123, the rear side and right side wall portions of the side wall surface portion 122 are extended upward, and the height of the side wall surface portion 122 is higher than the other portions. 122a and 122b are formed. The extended wall portions 122a and 122b are formed so that the upper ends thereof are positioned higher than the upper surface 71a of the ventilation path portion 71 and higher than the opening position of the opening 72. Therefore, the extending wall portion 122a on the right side faces the opening 72 and covers the entire opening 72 in the right side view. The extended wall portions 122a and 122b prevent the drainage from the opening 72 from flowing out or scattering from the VB side drainage flow path portion 120 to the outside.

The downstream flow path portion 124 is a curved flow path portion curved in a circular arc shape in a plan view along the arc shape of the upper peripheral wall portion 65 on the front side of the upstream side flow path portion 123. The downstream side flow path portion 124 has its downstream end positioned on the diagonally right front side of the upper peripheral wall portion 65. Further, the downstream flow path portion 124 is formed as a flow path narrower than the upstream side flow path portion 123.

A discharge hole 124a penetrating in the vertical direction is formed at the downstream end of the downstream flow path portion 124. On the lower side of the discharge hole 124a, a tubular guide portion 125 is formed which projects downward in a tubular shape so as to surround the discharge hole 124a including a portion where the side wall surface portion 122 extends downward. On the right side of the lower opening of the tubular guide portion 125, a plate-shaped hanging portion 126 for draining water is projected downward. The discharge hole 124a is located below the delivery pipe portion 99 in the VB lower member 61.

The tank-side drainage channel 130 receives the water flowing down from the discharge hole 124a of the downstream channel 124, guides the received water to the front side, and from a position near the right front corner of the tank 26, the base plate 5a. Drop it on the bottom surface 5c, which has a substantially horizontal plate shape. The tank-side drainage flow path portion 130 is mainly formed along a corner portion or a ridgeline portion in the outer shape of the tank 26. The tank-side drainage flow path portion 130 is formed by a molded portion of a resin component constituting the tank 26. The tank-side drainage channel 130 has a horizontal channel 131, an inclined channel 132, and a vertical DC path 133 that form a series of channels.

The horizontal flow path portion 131 is formed along the upper right corner portion of the tank 26. That is, the horizontal flow path portion 131 is a flow path portion formed along the right edge portion of the top surface portion 53 of the tank 26 in the front-rear direction. In the horizontal flow path portion 131, a right edge curved surface portion 131a that is curved downward and inclined at the right edge portion of the upper surface of the top surface portion 53 and a right side surface portion 26b of the tank 26 are projected upward in a plate shape. It is formed as a groove-shaped or gutter-shaped flow path portion by the upper flange portion 131b. The horizontal flow path portion 131 is slightly inclined forward.

The inclined flow path portion 132 is formed in an inclined shape that descends forward along the ridgeline on the right front side of the tank 26. The inclined flow path portion 132 has a plate shape toward the front side as a flow path bottom surface 132a formed by the outer surface of the tank 26 continuous with the right edge curved surface portion 131a of the horizontal flow path portion 131 and a surface portion continuous with the upper flange portion 131b. The front flange portion 132b projecting from the front flange portion 132b and the front side wall portion 132c projecting toward the front side in parallel with the front flange portion 132b on the left side of the front flange portion 132b form a gutter-shaped flow path portion. ing.

The vertical DC path portion 133 is formed vertically along the corner portion of the lower end portion on the right front side of the tank 26. The vertical DC path portion 133 is a lower rear flange that protrudes in a plate shape toward the right side as a flow path side surface 133a continuous with the flow path bottom surface 132a of the inclined flow path portion 132 and a surface portion continuous with the front flange portion 132b. A gutter-shaped flow path portion is formed by the portion 133b and the lower front flange portion 133c projecting in a plate shape toward the right side as a surface portion continuous with the front side wall portion 132c. The lower end of the vertical DC path portion 133 forming the end of the tank side drainage flow path portion 130 extends to a position near the bottom surface portion 5c of the base plate 5a.

According to the VB drainage flow path as described above, when the water in the upper space 50b overflows and is discharged from the opening 72 through the ventilation path 70 of the ventilation path 71 (FIG. 20, arrows B1, (See B2 and B3), the water discharged from the opening 72 drops onto the upstream side flow path portion 123 of the VB side drainage flow path portion 120 and flows in the VB side drainage flow path portion 120 (FIG. 7, FIG. See arrow B4). The water that has flowed through the VB side drainage channel 120 flows down from the downstream channel 124 at the end of the VB side drainage channel 120 onto the horizontal channel 131 of the tank side drainage channel 130 (FIG. 20). , See arrow B5).

The water that has flowed down onto the horizontal flow path portion 131 flows forward through the horizontal flow path portion 131, passes through the inclined flow path portion 132, and flows down onto the bottom surface portion 5c of the base plate 5a by the vertical DC path portion 133. The water that has flowed down onto the bottom surface 5c is discharged to the outside of the casing 5 along the bottom surface 5c, and is discharged to the bowl 3a of the toilet bowl 3. The VB drainage flow path, particularly the tank-side drainage flow path portion 130, functions as a guide flow path for guiding the condensed water adhering to the surface of the tank 26 to a predetermined place.

Further, in the VB lower member 61 of the present embodiment, a connector support portion 88 for supporting the case cover 5b provided on the signal line 55a of the float switch 55 is provided on the left front side of the upper peripheral wall portion 65. The connector support portion 88 forms an insertion port for the connector 55b so as to support the substantially square tubular connector 55b horizontally with the front-rear direction as the longitudinal direction. The connector support portion 88 is formed on the upper side of the connection pipe portion 95 as a part of the VB lower member 61.

According to the sanitary cleaning apparatus 2 according to the present embodiment described above, the flow path configuration from the heat exchanger 22 to the water discharge portion such as the local cleaning nozzle 31 via the VB portion 50 can be simplified. Can be made compact.

That is, in the sanitary cleaning device 2 according to the present embodiment, in the VB portion 50, the lower space portion 50a that receives water from the tank 26 and communicates with the electrolytic cell 23 by the partition wall portion 63 and the electrolytic cell 23 It has a configuration in which an upper space portion 50b that receives water supply and communicates with the nozzle unit 15 is formed. According to such a configuration, the water once discharged from the VB unit 50 can be returned to the VB unit 50 again after passing through the electrolytic cell 23. Therefore, in the tank / VB integrated configuration, the piping member (nozzle water supply tube 117) extending from the VB portion 50 having the functional portion as the vacuum breaker 24 can be connected to the nozzle unit 15 side. That is, in the tank / VB integrated configuration, it is possible to realize a flow path configuration in the order of heat exchanger 22 → electrolytic cell 23 → vacuum breaker 24 → nozzle unit 15 in terms of functionality.

As a result, in the tank / VB integrated configuration, the flow path from the heat exchanger 22 to the nozzle unit 15 can be unified. Therefore, for example, the flow path from the electrolytic cell 23 to the nozzle unit 15 is connected to a tube or the like. It is not necessary to separately provide it depending on the member, or to provide a configuration such as a three-way valve for selectively switching between water supply to the heat exchanger 22 and water supply to the electrolytic cell 23. As a result, it is possible to simplify the flow path configuration, save space, and reduce the size of the device. In particular, as the miniaturization of the device progresses, various devices and devices in the casing 5 become in a complicated state, and it is difficult to control the movement of piping members such as tubes that move with the advance / retreat operation of the local cleaning nozzle 31. Therefore, the simplification of the flow path configuration for the nozzle unit 15 greatly contributes to the miniaturization of the apparatus.

Further, in the sanitary cleaning device 2 according to the present embodiment, the external device provided in the reciprocating path to the VB portion 50 is an electrolytic cell 23, and the electrolytic cell 23 is at least partly outside the outer range of the tank 26 in a plan view. It is provided in a positioned manner.

According to such a configuration, it is possible to suppress the heat transfer of the heat exchanger 22 to the electrolytic cell 23, and it is possible to suppress the generation of scale that causes the flow path to be clogged in the electrolytic cell 23. it can. That is, in the configuration in which the electrolytic cell 23 is arranged close to the tank 26 of the heat exchanger 22 in a state of being completely opposed to the tank 26, the heat of the tank 26 that stores the hot water heated by the heater 27 is transferred to the electrolytic cell 23. It becomes easier to convey. When the electrolytic cell 23 is warmed, salts in the water are likely to precipitate, and scale is likely to be generated. Therefore, as described above, by arranging the electrolytic cell 23 so as not to partially overlap the tank 26 in a plan view, the area of the portion of the electrolytic cell 23 facing the tank 26 becomes smaller, so that the heat of the tank 26 is increased. Can be suppressed from being transmitted to the electrolytic cell 23, and the generation of scale can be suppressed.

In particular, in the present embodiment, the electrolytic cell 23 is located above the tank 26, which is a position away from the bottom of the tank 26 in which the heater 27, which is a heating source, is arranged, and is a case with respect to the tank 26. It is provided in a state where the whole or substantially the whole of the body body 101 is floated. According to such a configuration, the electrolytic cell 23 is less likely to be affected by the heat of the tank 26, so that the heat of the tank 26 can be effectively suppressed from being transferred to the electrolytic cell 23, and the scale in the electrolytic cell 23 can be suppressed. Can be effectively suppressed. From the viewpoint of obtaining such an effect, it is preferable that the electrolytic cell 23 is provided in a state where at least the majority of the case body body 101 is floated (separated) from the tank 26.

Further, in the sanitary cleaning device 2 according to the present embodiment, the electrolytic cell 23 is directly connected to the VB section 50. Specifically, the electrolytic cell 23 is directly attached to the VB portion 50 in a state where the outflow pipe portion 103b is inserted into the insertion port portion 97 of the VB lower member 61 constituting the VB portion 50. ..

According to such a configuration, it is possible to eliminate the need for a piping member such as a tube for forming a flow path between the electrolytic cell 23 and the VB portion 50. As a result, space can be saved, the device can be effectively made compact, the number of parts can be reduced, and the cost can be reduced.

Further, the sanitary cleaning device 2 according to the present embodiment has an opening 72 as a drainage port located above the tank 26 as a drainage structure from the VB portion 50, and drainage from the opening 72 in the tank 26. It has a tank-side drainage channel 130 for guiding the water.

According to such a configuration, it is possible to guide the drainage from the VB portion 50 and the dew condensation water on the surface of the tank 26 to a predetermined place without the need for a piping member such as a tube. As a result, space can be saved, the device can be effectively made compact, the number of parts can be reduced, and the cost can be reduced.

Further, according to the tank side drainage flow path portion 130, the drainage from the opening 72 of the VB portion 50 and the dew condensation water on the surface of the tank 26 can be guided to a target position, and the VB portion 50 can be guided to the target position in the casing 5. It is possible to prevent the drainage from the opening 72 from being applied to other parts such as devices / devices arranged in the vicinity of the VB portion 50. As a result, it is possible to prevent a defect (for example, a failure of an electric component) caused by the drainage from the VB unit 50 being applied to other components.

In particular, the sanitary cleaning device 2 of the present embodiment has a VB-side drainage channel 120 provided on the upstream side in addition to the tank-side drainage channel 130 as a configuration of the VB drainage channel. According to such a configuration, it is possible to surely guide the drainage from the VB portion 50 to a predetermined place, and it is possible to effectively suppress the water from splashing on other parts.

Further, since the VB side drainage flow path portion 120 has extended wall portions 122a and 122b that cover the vicinity of the opening position of the opening 72, it is possible to prevent the drainage from the opening 72 from scattering, and other drainage channels can be prevented. It is possible to effectively prevent water from splashing on the parts. In particular, as the sanitary cleaning device 2 becomes smaller and smaller, the density of various devices / devices in the casing 5 increases, so it is important to avoid drainage from the VB portion 50 from being applied to other parts. ..

Further, the VB side drainage flow path portion 120 is provided as a part of the VB lower member 61 constituting the VB portion 50. According to such a configuration, the number of parts can be reduced and the cost can be reduced.

Further, in the sanitary cleaning device 2 according to the present embodiment, the flow path with respect to the VB portion 50 has a horizontal outflow direction from the lower space portion 50a of the VB portion 50 and an inflow direction with respect to the upper space portion 50b. It is configured to follow. According to such a configuration, it is possible to prevent the member constituting the flow path with respect to the VB portion 50 from being provided at a position higher than that of the VB portion 50, and it is possible to suppress the height of the casing 5 of the sanitary cleaning device 2. It will be possible. This contributes to the compactness of the device.

Further, according to the sanitary cleaning device 2 according to the present embodiment, the flow path configuration from the VB unit 50 to the nozzle unit 15 is common regardless of the presence or absence of the electrolytic cell 23, even if the configuration does not include the electrolytic cell 23. It becomes possible to design. That is, in the case of a configuration not provided with the electrolytic cell 23, the flow path between the electrolytic cell 23 and the VB portion 50 is omitted together with the electrolytic cell 23, and the partition wall portion 63 is omitted, so that the heat exchanger 22 → the vacuum breaker 24 is omitted. → The flow path configuration in the order of the nozzle unit 15 can be realized by using the same piping configuration as the sanitary cleaning device 2 according to the present embodiment. As a result, cost reduction and miniaturization of the device can be achieved.

The sanitary cleaning device according to the present invention described using the embodiment as described above is not limited to the above-described embodiment, and various aspects can be adopted within the scope of the gist of the present invention.

In the above-described embodiment, the external device provided in the reciprocating path with respect to the VB unit 50 is the electrolytic cell 23, but the present invention is not limited to such a configuration. This external device may be another device such as a flow rate sensor.

Further, in the above-described embodiment, the water discharge unit that receives the water supply through the VB unit 50 and discharges the water is the local cleaning nozzle 31 and the nozzle cleaning chamber 32 provided in the nozzle unit 15, but the water discharge unit is It may have other configurations. Specifically, other water discharge parts include, for example, a spray nozzle that is separately provided from the local cleaning nozzle 31 and sprays cleaning water from the spray port onto the surface of the bowl portion 3a of the toilet bowl 3, and deodorizing. Examples thereof include a deodorizing unit having a spraying portion for spraying cleaning water on the filter.

2 Sanitary cleaning equipment 4 Equipment main body 5 Casing 9 Water supply source 15 Nozzle unit 22 Heat exchanger (heating device)
23 Electrolytic cell 24 Vacuum breaker 26 Tank 26s Internal space 31 Local cleaning nozzle 32 Nozzle cleaning chamber 50 VB section (vacuum breaker section)
50a Lower space (1st space)
50b Upper space (second space)
61 VB lower member 62 VB cap member 63 partition wall 72 opening (drainage port)
91 Outlet 92 Inflow port 93 External outlet 97 Outlet part 111 First flow path 112 Second flow path 113 Third flow path 120 VB side drainage flow path part 130 Tank side drainage flow path part

Claims (4)

It is a sanitary cleaning device that cleans the local part of the human body with washing water.
A heating device that has a tank that receives water from the water supply source and heats the water in the tank,
A vacuum breaker unit provided integrally with the tank,
It is provided on the downstream side of the heating device, and includes a water discharge unit that receives water supplied through the vacuum breaker unit and discharges water.
The vacuum breaker section is
A partition wall portion that divides the internal space of the vacuum breaker portion into a first space portion that communicates with the internal space of the tank and a second space portion that communicates with the water discharge portion.
An outlet provided in a portion forming the first space portion and for supplying water from the first space portion to a predetermined external device,
An inflow port provided in a portion forming the second space portion and for allowing water that has passed through the external device to flow into the second space portion,
A sanitary cleaning device provided in a portion forming the second space portion and having an external outlet for supplying water from the second space portion to the water discharge portion. The external device is an electrolytic cell that produces predetermined functional water.
The sanitary cleaning apparatus according to claim 1, wherein the electrolytic cell is provided so that at least a part of the electrolytic cell is located outside the outer range of the tank in a plan view. The external device is an electrolytic cell that produces predetermined functional water.
The sanitary cleaning device according to claim 1 or 2, wherein the electrolytic cell is directly connected to the vacuum breaker portion. The vacuum breaker portion has a drainage port at a position above the tank.
The sanitary cleaning device according to any one of claims 1 to 3, wherein the tank has a drainage flow path portion that guides water discharged from the drain port to a predetermined position.

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