Sanitary cleaning device

Abstract

The sanitary cleaning device disclosed in the present invention comprises: a main body; a heat exchanger, which is arranged in the main body and is used to heat cleaning water; and a nozzle device, which is arranged in the main body and is used to clean the human body by protruding from the main body. In addition, the heat exchanger has an inlet tube (532) and an outlet tube (534) on the upper surface. Thus, a sanitary cleaning device can be provided in which the height of the heat exchanger can be configured to be lower and the main body can be configured to be lower.

Description

Technical Field

[0001] The invention relates to a sanitary cleaning device for cleaning a local part of a human body. Background Art

[0002] Conventionally, such sanitary washing devices are configured to heat water supplied from a water supply source to a predetermined temperature in a short time and to use the water for washing the human body, and are provided with a heat exchanger for supplying water.

[0003] Patent document 1 discloses a sanitary cleaning device having a rectangular heat exchanger. The heat exchanger is formed with a small thickness, a water inlet is arranged at the bottom, a water outlet is arranged at the top, and a zigzag flow path is formed in the internal space of the heat exchanger from the water inlet at the bottom to the water outlet at the top. Water supplied from the water inlet at the bottom is heated, and the buoyancy of the heated fluid is used to move it upward. In this way, the cleaning water can be efficiently heated to an appropriate temperature.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2005-146552 Summary of the invention

[0007] However, the heat exchanger of Patent Document 1 requires a height from the lower water inlet to the upper water intake to heat the liquid in order to circulate the washing water using the buoyancy of the heated liquid. Therefore, there is a problem that the height dimension of the heat exchanger becomes high, which limits the height of the main body for assembling the heat exchanger.

[0008] The present invention solves the problem of Patent Document 1 and provides a sanitary cleaning device capable of reducing the height of a heat exchanger.

[0009] The sanitary cleaning device disclosed in the present invention comprises: a main body; a heat exchanger, which is arranged in the main body and is used to heat cleaning water; and a nozzle device, which is arranged in the main body and cleans the human body by protruding from the main body. The heat exchanger forms an inlet cylinder and an outlet cylinder on the upper surface.

[0010] The sanitary washing device of the present disclosure can make the height of the heat exchanger low, and can make the height of the main body to which the heat exchanger is assembled low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a perspective view of the appearance of the sanitary cleaning device according to the first embodiment.

[0012] Figure 2 It is a three-dimensional diagram of the appearance of the main parts of the sanitary cleaning device.

[0013] Figure 3 This is a plan view of a state in which a front cover and a rear cover are removed from a main body of the sanitary washing device.

[0014] Figure 4 This is a perspective view of a state in which a front cover is removed from a main body of the sanitary washing device.

[0015] Figure 5 This is a perspective view of a state in which a rear cover is removed from a main body of the sanitary washing device.

[0016] Figure 6 It is a three-dimensional view of the base of the sanitary cleaning device.

[0017] Figure 7 It is a cross-sectional view of the main parts of the sanitary cleaning device.

[0018] Figure 8 It is a cross-sectional view of the main parts of the sanitary cleaning device.

[0019] Fig. 9 It is a cross-sectional view of the main parts of the sanitary cleaning device.

[0020] Fig.10 It is a cross-sectional view of the main parts of the sanitary cleaning device.

[0021] Fig.11 It is a three-dimensional diagram of the main parts of the sanitary cleaning device.

[0022] Fig.12 It is a main part stereoscopic view showing the damper mechanism of the sanitary cleaning device.

[0023] Fig.13 It is a main part stereoscopic view showing the damper mechanism of the sanitary cleaning device.

[0024] Fig.14 It is a cross-sectional view showing the main parts of the damper mechanism of the sanitary cleaning device.

[0025] Fig.15 It is a perspective view showing the main parts of the seat detection unit of the sanitary cleaning device.

[0026] Fig.16 It is a perspective view showing the main parts of the seat detection unit of the sanitary cleaning device.

[0027] Fig.17 It is a perspective view showing the main parts of the seat detection unit of the sanitary cleaning device.

[0028] Fig.18 It is a perspective view showing the back side of the main body of the sanitary cleaning device.

[0029] Fig.19 It is a cross-sectional view of the main parts of the sanitary cleaning device.

[0030] Fig. 20 It is a three-dimensional view of the main parts of the sanitary cleaning device with the toilet cover opened.

[0031] Fig.21 It is a three-dimensional view of the main parts of the sanitary cleaning device with the toilet cover opened.

[0032] Fig. 22 It is a perspective view of the main parts of the sanitary cleaning device with the front cover removed.

[0033] Fig.23 It is a cross-sectional view showing the main parts around the side operating part of the sanitary cleaning device.

[0034] Fig.24 It is a three-dimensional view of the side operating part of the sanitary cleaning device.

[0035] Fig.25 It is an exploded stereoscopic view of the side operating part of the sanitary cleaning device.

[0036] Fig.26 It is a cross-sectional view of the side operating portion of the sanitary cleaning device.

[0037] Fig. 27 It is a cross-sectional view around the heat exchanger of the sanitary cleaning device.

[0038] Fig.28 It is a three-dimensional diagram of the water supply unit of the sanitary cleaning device.

[0039] Fig.29 It is a cross-sectional view of the water supply unit of the sanitary cleaning device.

[0040] Fig.30 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0041] Fig.31 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0042] Fig.32 It is a cross-sectional view of the water supply unit of the sanitary cleaning device.

[0043] Fig.33 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0044] Fig.34 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0045] Fig.35 It is a cross-sectional view of the water supply unit of the sanitary cleaning device.

[0046] Fig.36 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0047] Fig.37 It is a cross-sectional view of a vacuum circuit breaker of a water supply unit of the sanitary cleaning device.

[0048] Fig.38 It is a three-dimensional diagram of the heat exchanger of the sanitary cleaning device.

[0049] Fig.39 This is a perspective view of the heat exchanger of the sanitary cleaning device with the hot water outlet module removed.

[0050] Fig.40 It is an exploded stereogram of the heat exchanger of the sanitary cleaning device.

[0051] Fig.41 It is an exploded stereogram of the heat exchanger of the sanitary cleaning device.

[0052] Fig.42 It is a stereoscopic diagram of a flow sensor of a heat exchanger of the sanitary cleaning device.

[0053] Fig.43 It is a cross-sectional view of a flow sensor of a heat exchanger of the sanitary cleaning device.

[0054] Fig.44 It is a cross-sectional view of a flow sensor of a heat exchanger of the sanitary cleaning device.

[0055] Fig.45 It is an exploded stereogram of the heat exchanger of the sanitary cleaning device.

[0056] Fig.46 It is an exploded stereogram of the heat exchanger of the sanitary cleaning device.

[0057] Fig.47 It is a cross-sectional view of the heat exchanger of the sanitary cleaning device.

[0058] Fig.48 It is a cross-sectional view of the main parts of the heat exchanger of the sanitary cleaning device.

[0059] Fig.49 It is a cross-sectional view of the main parts of the heat exchanger of the sanitary cleaning device.

[0060] Fig.50 It is a cross-sectional view of the main parts of the heat exchanger of the sanitary cleaning device.

[0061] Fig.51 It is a three-dimensional diagram of the water pump of the sanitary cleaning device.

[0062] Fig.52It is a three-dimensional diagram of the water pump of the sanitary cleaning device.

[0063] Fig.53 It is an exploded stereogram of the water pump of the sanitary cleaning device.

[0064] Fig.54 It is a three-dimensional diagram of the water pump of the sanitary cleaning device.

[0065] Fig.55 It is a three-dimensional diagram of the water pump of the sanitary cleaning device.

[0066] Fig.56 It is an exploded stereogram of the water pump of the sanitary cleaning device.

[0067] Fig.57 It is a cross-sectional view of the water pump of the sanitary cleaning device. DETAILED DESCRIPTION

[0068] (Insights, etc. that form the basis of this disclosure)

[0069] When the inventors came up with the present disclosure, the technology involved in the heat exchanger of the sanitary cleaning device became the following structure: a zigzag flow path is formed in the up-down direction, and the cleaning water is discharged from the top by using the buoyancy generated by supplying the cleaning water from the bottom and heating the cleaning water. Therefore, in order to heat the cleaning water to an appropriate temperature, a flow path of sufficient length is required, which has the problem of increasing the height of the heat exchanger and the height of the main body.

[0070] The inventors have devised the subject matter of the present disclosure in order to solve this problem.

[0071] Therefore, the present disclosure provides a sanitary cleaning device, which includes: a main body; a heat exchanger, which is arranged in the main body and is used to heat cleaning water; and a nozzle device, which is arranged in the main body and cleans the human body by protruding from the main body, and the heat exchanger forms an inlet cylinder and an outlet cylinder on the upper surface.

[0072] Below, while referring to the attached Figure 1 The implementation method will be described in detail.

[0073] In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims based on the drawings and the following description.

[0074] (Implementation Method 1)

[0075] like Figure 1 As shown, the sanitary washing device 100 is composed of a main body 200, a toilet seat 300, and a toilet cover 320 as main components. The main body 200, the toilet seat 300, and the toilet cover 320 are integrally formed and provided on the upper surface of the toilet 110.

[0076] A side operating portion 210 is provided on the right side of the main body 200 so as to protrude forward, and is provided with a plurality of switches and indicator lights for operating and setting various functions of the sanitary washing device 100 .

[0077] In the present embodiment, the arrangement of the components is described with the installation side of main body 200 of sanitary washing device 100 as the rear, the installation side of toilet seat 300 as the front, the right side facing forward as the right, and the left side facing forward as the left.

[0078] like Figure 3 to Figure 5 As shown, in the main body 200, from the right, there are: a water supply unit 400, a heat exchanger 500, a water pump 600, a nozzle device 700, a drying device 220 for drying a part, a deodorizing device 230 for deodorizing the odor during defecation, etc., and a control unit for controlling various functions of the sanitary cleaning device 100 is provided above the heat exchanger 500. A cleaning water flow path (not shown) is formed in a manner that cleaning water flows from the water supply unit 400 to the nozzle device 700. The water supply unit 400 or the water pipe connected thereto is a supply source of cleaning water.

[0079] In the present embodiment, the water supply unit 400, the heat exchanger 500, the water pump 600, the nozzle device 700, the drying device 220, the deodorizing device 230, and the control unit are hereinafter referred to as various functional components.

[0080] Furthermore, various functional components can be added or reduced as needed.

[0081] <Main body structure>

[0082] The main body 200 is composed of a base 250 constituting a bottom surface, a rear case 270 constituting a part of a rear portion and a side surface, and a front case 290 constituting a part of a front portion, an upper surface, and a side surface.

[0083] The base 250 is provided with a convex portion 251 whose width gradually narrows from the side surface to the back surface. The rear housing 270 is provided with a groove portion 271 whose width gradually narrows from the side surface to the back surface. Here, the convex portion 251 of the base 250 and the groove portion 271 of the rear housing 270 constitute a concave-convex fitting portion formed in the front-rear direction.

[0084] The rear housing 270 is slid from the rear to the front of the base 250 and mounted on the base 250. When the rear housing 270 is slidably mounted, the rear housing 270 is slid using the groove 271 and the inserted portion of the groove 271 as a guide with the protrusion 251 inserted into the groove 271.

[0085] Thus, the assembly workability of the rear housing 270 to the base 250 is improved. In addition, when the rear housing 270 is assembled to the base 250, the gap between the inside and outside of the main body 200 becomes a serrated shape due to the groove 271 and the convex portion 251, which can suppress the infiltration of liquid into the main body 200.

[0086] A portion of the bottom of the rear housing 270 extends downward from the base 250 , and is screwed and fixed from the rear housing 270 side at a position where the bottom of the base 250 overlaps with the bottom of the rear housing 270 .

[0087] The front housing 290 is mounted from the front side of the base 250. When the front housing 290 is mounted on the base 250, the side surface of the front housing 290 contacts the outer side surface of the rear housing 270, thereby preventing a gap from being formed between the side surfaces of the front housing 290 and the rear housing 270.

[0088] like Fig.10 As shown, a groove portion 252 whose width gradually narrows from the side surface to the front surface is formed in the base portion 250. A convex portion 291 whose width gradually narrows from the side surface to the front surface is formed in the front housing 290.

[0089] The front housing 290 is slid from the front to the rear of the base 250 and mounted on the base 250. When the front housing 290 is slidably mounted, the groove 252 and the inserted portion of the convex portion 291 are used as guides to slide the front housing 290 while the convex portion 291 is inserted into the groove 252.

[0090] Thus, the assembly workability of the front housing 290 to the base 250 is improved. In addition, when the front housing 290 is assembled to the base 250, the gap between the inside and outside of the main body 200 becomes a sawtooth shape due to the groove 252 and the convex part 291, which can suppress the infiltration of liquid into the main body 200.

[0091] like Figure 8 As shown, the front end face 270a of the rear housing 270 is formed to extend in the horizontal direction toward the front. The rear end of the front housing 290 has a clamping portion 290a in the shape of a Japanese kana "コ" that clamps the front end face 270a of the rear housing 270, and clamps the front housing 290 from the front. Thus, the clamping portion 292 clamps the front end face 270a of the rear housing 270, and suppresses the generation of a gap between the front housing 290 and the rear housing 270. The upper surface of the front housing 290 is formed to be curved toward the back of the rear housing 270. When the front housing 290 is assembled, the upper surface of the front housing 290 is smoothly connected to the back of the rear housing 270, forming a part of the rear part of the main body 200. The front housing 290 is screwed to the rear housing 270 from the rear side.

[0092] Thus, the joint between the front housing 290 and the rear housing 270 can be made less noticeable when viewed from the front, thereby preventing damage to the aesthetics. In addition, when liquid drips onto the upper surface of the main body 200, the liquid can also drip onto the rear housing side without penetrating into the joint between the front housing 290 and the rear housing 270.

[0093] like Fig.10 As shown, the inclined surface 240 constituting the bottom of the nozzle device 700 is configured to be inclined in accordance with the inclination of the nozzle device 700, and is composed of the front housing 290 and the base 250, which are fitted on the inclined surface 240. The fitting portion of the inclined surface 240 is configured to be located at an upper position in the toilet bowl of the toilet 110.

[0094] Regarding the inclined surface 240, a structure formed on the front housing 290 is considered, but in this structure, since the fitting portion between the front housing 290 and the base 250 is located above the toilet 110, when water enters the fitting portion, there is a possibility of contaminating the upper surface of the toilet 110. In addition, if the fitting portion does not have a waterproof structure, the possibility of contaminating the upper surface of the toilet 110 is further increased.

[0095] In this embodiment, when water leaks from the nozzle device 700 in the main body 200, the water is discharged into the toilet bowl of the toilet 110 along the inclined surface 240. Even if water enters the fitting portion between the front housing 290 and the base 250, the fitting portion is located in the toilet 110 and does not contaminate the surroundings. The fitting portion is formed by fitting the groove 252 formed in the base 250 and the convex portion 291 formed in the front housing 290, so that water is difficult to enter, and cleaning performance can be improved.

[0096] Even in a structure where the main body 200 is installed to be tilted toward the rear, the same effect can be expected.

[0097] The front lower part of the main body 200 is formed by the front housing 290, so even if sewage is attached, the cleaning workability can be improved. In addition, if a drainage rib is formed to remove the sewage attached to the front housing 290, the drainage into the toilet 110 can be further improved.

[0098] A rib 253 is formed on the bottom surface of the base 250 at the front end to the right of the nozzle device 700, the water supply unit 400, and the front position of the heat exchanger 500 protruding upward. When water leakage occurs in the water circuit structure to the right of the nozzle device 700, the rib 253 is used to guide the leaked water to the inclined surface 240 and discharge it into the toilet 110.

[0099] The front of the inclined surface 240 is covered by a nozzle cover (not shown), but the leaked water is discharged from the periphery of the nozzle cover, and drainage can be performed without providing a dedicated drain port. By providing the nozzle cover, the unevenness in the front position of the main body 200 where the sewage rebounds the most can be eliminated, and the cleaning performance can be improved.

[0100] <Damper Mechanism>

[0101] In the present embodiment, the toilet seat 300 and the toilet lid 320 are manually opened and closed, and a damper mechanism is provided so that the toilet seat 300 and the toilet lid 320 are closed smoothly.

[0102] exist Figure 12 to Figure 14 The damper mechanism 241 includes a toilet seat damper 242 and a toilet lid damper 243 . The toilet seat 300 is attached to the toilet seat damper 242 , and the toilet lid 320 is attached to the toilet lid damper 243 .

[0103] The damper 242 for toilet seat and the damper 243 for toilet lid are fixed by fitting a plurality of locking claws 245 provided in the damper mounting part 244. The damper mounting part 244 is fixed to the upper left part of the rear housing 270.

[0104] The toilet seat damper 242 and the toilet lid damper 243 are configured to be engaged with the damper mounting portion 244 using the locking claws 245. However, during long-term use, it is conceivable that the toilet seat damper 242 or the toilet lid damper 243 disengages from the locking claws 245 and falls off from the damper mounting portion 244.

[0105] In the present embodiment, a fall-off prevention projection 246 is provided protruding from the rear housing 270 toward the toilet seat damper 242 and the toilet cover damper 243, and abuts against the toilet seat damper 242 and the toilet cover damper 243. Even when the toilet seat damper 242 or the toilet cover damper 243 is detached from the locking claw 245, the fall-off prevention projection 246 abuts against the toilet seat damper 242 or the toilet cover damper 243, thereby preventing the toilet seat damper 242 or the toilet cover damper 243 from falling off.

[0106] In this embodiment, a structure is adopted in which the toilet seat damper 242 and the toilet lid damper 243 are fixed to the damper mounting portion 244 using the locking claws 245, so that the mounting workability is improved, and the fixing members such as screws are eliminated to reduce the material cost.

[0107] When it is desired to firmly fix the toilet seat damper 242 and the toilet lid damper 243 to the damper mounting portion 244, it is of course possible to use a fixing method such as screw fixing.

[0108] In the above embodiment, the damper mechanism is provided to smoothly close the toilet seat 300 and the toilet cover 320, but the toilet seat 300 and the toilet cover 320 may be opened and closed by a motor.

[0109] <Detailed structure of the main body>

[0110] like Figure 15 to Figure 17 As shown in FIG. 1 , a seat detection unit 272 is disposed on the toilet seat support unit 276 of the rear housing 270 . The seat detection unit 272 is a component for detecting that a human body is seated on the toilet seat 300 .

[0111] The seat detection unit 272 receives the seat shaft 301 of the toilet seat 300 on the seat support unit 276. When a person sits on the toilet seat 300, the seat shaft 301 moves downward due to the weight of the human body, and the seat detection unit 272 also moves downward. By detecting the above situation, the sitting of the human body is detected.

[0112] like Fig.18 and Fig.19 As shown, a through hole 273 is formed on the right side of the back of the rear housing 270, and a filter 274 for removing foreign matter in the water pipe is provided inside the through hole 273. The filter 274 can be removed from the through hole 273 on the back of the rear housing 270, and foreign matter attached to the filter 274 can be removed.

[0113] like Fig. 20 and Fig.21 As shown, stoppers 275 are provided on the two side surfaces of the rear housing 270 near the toilet cover rotation axis 321 to limit the opening angle of the toilet cover 320 when the toilet cover 320 is opened. The stoppers 275 are formed to extend from the side surface portion to the horizontal portion, and are formed to have a structure without a small gap, so that it is easy to wipe even if it is contaminated by dust adhesion, etc. In addition, the stoppers 275 are connected to the vertical portion and the horizontal portion in a rounded R shape, and become a structure that takes cleanability into consideration.

[0114] based on Figure 22 to Figure 26 The structure of the side operating unit 210 and the mounting structure for mounting the side operating unit 210 on the main body 200 will be described.

[0115] On the right side surface of the main body 200, a mounting portion 211 is formed between the base 250 and the front housing 290. The side operating portion 210 is mounted on the mounting portion 211.

[0116] The side operation unit 210 includes a lower case 212, an upper case 213, an operation board 214, and an operation plate 215. The operation board 214 includes an operation board 216 and an operation board case 217. The operation board 216 is connected to a main board (not shown) by a lead wire 218.

[0117] The operation substrate 214 is screwed to the upper housing 213, and a seal (not shown) is arranged between the operation substrate housing 217 and the upper housing 213. The lead wire 218 of the operation substrate 214 is routed in the base 250 through the cavity 219 formed by the lower housing 212. In addition, a rib (not shown) for fixing the lead wire 218 is arranged on the lower housing 212, and a structure is adopted to prevent the lead wire from being bitten during assembly.

[0118] After the upper shell 213 and the lower shell 212 are engaged with the claws (not shown), the upper shell 213 is fastened to the lower shell 212 from above by screws, and the operation label 215 is attached to cover the screws. The engagement portion of the lower shell 212 and the upper shell 213 forms a peripheral wall 225 on the upper shell 213 in a manner that covers the butt joint surface of the lower shell 212 and the upper shell 213 from the outer peripheral side. Thus, even if liquid is attached to the side operation portion 210, it is possible to prevent the liquid from entering the inside.

[0119] The lower housing 212 is formed integrally with a fitting portion 221 for fitting to the fitting portion 211. A groove 222 is formed on the base 250 side of the fitting portion 221 to fit with a protrusion 251 of the base 250. A groove 223 is formed on the front housing 290 side of the fitting portion 221 to fit with a protrusion 292 formed on the front housing 290.

[0120] The fitting portion 221 is formed larger in the up-down direction and the front-back direction than the extension portion 224 extending from the lower housing 212 toward the fitting portion 221, and is fitted with the base 250 and the front housing 290 at a position closer to the periphery than the extension portion 224, constituting a part of the side wall of the main body 200. Since the fitting is fitted at a position closer to the periphery than the extension portion 224, even if liquid drips from above, it is possible to suppress the liquid from entering the main body 200 from the fitting portion. The extension portion 224 and the fitting portion 221 are formed as a curved surface, which is a structure that improves the workability of cleaning.

[0121] When the mounting portion 221 is mounted on the mounting portion 211 , the gap between the inside and the outside becomes serrated due to the engagement between the groove 222 and the protrusion 251 and the engagement between the groove 223 and the protrusion 292 , thereby preventing liquid from entering the mounting portion 221 .

[0122] In this embodiment, the structure is set to operate various functions using the side operating part 210, but it can also be set to a structure that operates using a remote control device. This structure can use the same mounting structure as the mounting structure of the mounting part 221 to mount the mounting plate having the receiving part and the minimum operating switch on the mounting part 211. In this way, it can cope with multiple models.

[0123] <Base structure>

[0124] Various functional components for performing various functions of sanitary washing device 100 are mounted on base 250. Base 250 is provided with mounting portion 254 for mounting various functional components.

[0125] As an example of the installation section, Fig. 27 2 shows the mounting portion 254 of the heat exchanger 500. The mounting portion 254 of the heat exchanger 500 is an example, and other structures are also possible.

[0126] The mounting portion 254 is formed by a locking piece 255 provided upright from the base 250 and an engaging claw 256 formed on the side surface of the heat exchanger 500 .

[0127] Since various functional components have different shapes, center of gravity heights, and the like, the shape and the like of the mounting portion 254 can be appropriately selected according to the various functional components.

[0128] Various functional components are transported on the belt conveyor and assembled on the base 250 by an automatic machine. The locking piece 255 is engaged with the locking claw 256 to fix or temporarily fix them to prevent displacement.

[0129] During manufacturing, the base 250 is placed on a tray on a belt conveyor and moved, and various functional components are fixed or temporarily fixed by the mounting portion 254 of the various functional components of the base 250 using an automatic machine. When various functional components are placed on the base 250, the base 250 on the tray is moved to a predetermined position, and various functional components are screwed to the base 250 using an automatic machine as needed.

[0130] The base 250 is formed in a flat plate shape. Since there is no member covering the base 250 , various functional components can be easily assembled and screwed using an automatic machine.

[0131] Various functional components are fixed or temporarily fixed to the mounting portion 254 on the base 250 to prevent movement of the various functional components. Therefore, they can be screwed and fixed by an automatic machine without being affected by vibrations caused by the belt conveyor during movement.

[0132] In this embodiment, various functional components assembled to the base 250 by the automatic machine include the side operating unit 210, the water supply unit 400, the heat exchanger 500, the nozzle device 700, the drying device 220, the deodorizing device 230, and the like.

[0133] In this embodiment, as various functional components, a side operating unit 210, a water supply unit 400, a heat exchanger 500, a nozzle device 700, a drying device 220, and a deodorizing device 230 are provided from the right side of the main body 200, and are fixed in the order of the side operating unit 210, the water supply unit 400, the heat exchanger 500, the nozzle device 700, the drying device 220, and the deodorizing device 230.

[0134] Furthermore, in the above-described embodiment, the locking piece 255 is vertically erected upward from the base 250 .

[0135] However, depending on the structure and shape of various functional components, the locking piece 255 may also be a structure that is erected upward in a state inclined relative to the base 250. According to this structure, when assembling using an automatic machine, when installing various functional components, it is preferably set to a structure that tilts the tray used to place the base 250.

[0136] In addition, as the mounting portion 254, the locking piece 255 is formed on the base 250, and the engaging claws 256 are formed on various functional components. However, the engaging claws 256 may be formed on the base 250 and the engaging claws 256 may be formed on various functional components.

[0137] The mounting portion 254 may be configured to be able to fix or temporarily fix various functional components to the base 250 , and a configuration other than the locking piece 255 and the engaging claw 256 may be selected.

[0138] In addition, various functional components have a holding portion for holding the lead wire so as not to hinder assembly. The lead wire is held by the holding portion before assembly work, so as not to hinder assembly.

[0139] In addition, when the control unit (not shown) is arranged on the right side of the nozzle device 700 and the drying device 220 and the deodorizing device 230 are arranged on the left side, a wiring member (not shown) is provided to support the lead wire at an upper position of the nozzle device 700 so that the lead wire does not contact the driving unit of the nozzle device 700. The wiring member is fixed to the housing of the control unit and the drying device 220. As a result, the nozzle device 700 does not contact the lead wire during driving, and easy assembly can be achieved.

[0140] <Water supply unit>

[0141] The water supply unit 400 is disposed at the rightmost position of the base 250. The water supply unit 400 is connected to a water pipe outside the main body 200 via a hose (not shown).

[0142] Figure 28 to Figure 31 The water supply unit shown includes a water pump 600 and has an open water passage 405A, and will be described below as a water supply unit 400A.

[0143] The water supply unit 400A includes a filter 401A, a constant flow valve 402A, a water stop solenoid valve 403A, a vacuum breaker 404A, and an open water passage 405A.

[0144] Clean water flowing through a water pipe (not shown) is supplied to filter 401A as washing water. Dirt, impurities, etc. contained in the washing water are removed by filter 401A.

[0145] The washing water from which the garbage and impurities are removed by the filter 401A is supplied to the water stop solenoid valve 403A. The water stop solenoid valve 403A switches the supply state of the washing water to the downstream side. The operation of the water stop solenoid valve 403A is controlled by a control unit (not shown). If the washing water is supplied from the water stop solenoid valve 403A to the constant flow valve 402A, the washing water is supplied to the vacuum breaker 404A. The constant flow valve 402A controls the flow rate of the washing water flowing in the water supply unit 400A to be constant.

[0146] The vacuum circuit breaker 404A includes a vacuum adapter 406A, a vacuum cover 407A covering the vacuum adapter 406A, and a vacuum breaking valve 408A supported between the vacuum adapter 406A and the vacuum cover 407A.

[0147] The vacuum adapter 406A has an inlet 409A into which the washing water from the constant flow valve 402A flows, an outlet 410A toward the main water channel, and an outlet 411A toward the open water channel 405A. The vacuum cover 407A has an air inlet 412A.

[0148] The water supply unit 400 allows the washing water supplied from the inlet 409A to flow to the outlet 410A toward the main water channel and the outlet 411A toward the open water channel 405A. The washing water supplied to the outlet 410A toward the main water channel flows toward the downstream side by the output of the water pump 600 disposed on the downstream side. The washing water not supplied to the outlet 410A is guided from the outlet 411A to the open water channel 405A and discharged into the toilet.

[0149] A flow sensor 570, a heat exchanger 500, etc. are arranged on the upstream side of the water pump 600 in the main water channel. The flow channel resistance of the flow sensor 570, the heat exchanger 500, etc. is large. Therefore, in a structure in which the washing water flows to the downstream side only by the output of the water pump 600, the load on the water pump 600 is large.

[0150] In this embodiment, by providing a fixed throttle hole 413C on the open water channel side, a water pressure corresponding to the flow channel resistance of the flow sensor 570, the heat exchanger 500, etc. can be applied to the outflow port 410A toward the main water channel, thereby suppressing the load on the water pump 600.

[0151] In addition, the smaller the washing flow rate set by the user, the larger the flow rate passing through the fixed throttle hole 413C, the larger the water pressure applied to the outlet 410 toward the main water channel, and the larger the water pressure applied to the inlet of the water pump 600, so that the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and gentler washing water can be provided. Conversely, the larger the washing flow rate set by the user, the smaller the flow rate passing through the fixed throttle hole 413C, the smaller the water pressure applied to the outlet 410 toward the main water channel, and the smaller the water pressure applied to the inlet of the water pump 600, so that the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and stronger washing water can be provided.

[0152] Normally, the cleaning water pushes the vacuum breaker valve 408 upward due to the water pressure, so the vacuum circuit breaker 404 closes the flow path to the air inlet 412. However, when the upstream side becomes negative pressure, the vacuum breaker valve 408 descends, sucking in external air from the air inlet 412 to release the negative pressure on the upstream side, thereby preventing the danger of sewage flowing back from the nozzle device 700 or the open water path.

[0153] In the above-mentioned embodiment of the water supply unit, it is conceivable to adopt a structure in which the water pump 600 is removed.

[0154] Figure 32 to Figure 34 The water supply unit shown is a water supply unit without the water pump 600, and will be described below as a water supply unit 400B.

[0155] The water supply unit 400B includes a filter 401B, a water stop electromagnetic valve 403B, a pressure reducing valve 402B, a vacuum breaker 404B, and a release water passage 405B.

[0156] Clean water flowing through a water pipe (not shown) is supplied to filter 401B as washing water. Filter 401B removes dirt, impurities, etc. contained in the washing water.

[0157] The washing water from which dirt, impurities, etc. are removed by the filter 401B is supplied to the water stop solenoid valve 403B. The water stop solenoid valve 403B switches the supply state of the washing water to the downstream side. The operation of the water stop solenoid valve 403B is controlled by a control unit (not shown). When the washing water is supplied from the water stop solenoid valve 403B to the pressure reducing valve 402B, the pressure of the washing water flowing in the water supply unit 400B is reduced to a constant pressure by the pressure reducing valve 402B.

[0158] The vacuum circuit breaker 404B includes a vacuum adapter 406B, a vacuum cover 407B covering the vacuum adapter 406B, and a vacuum breaker valve 408B supported between the vacuum adapter 406B and the vacuum cover 407B.

[0159] The vacuum adapter 406B has an inlet 409B into which the washing water from the pressure reducing valve 402B flows, an outlet 410B toward the main water channel, and an outlet 411B toward the open water channel. The vacuum cover 407B has an air inlet 412B.

[0160] The vacuum breaker 404B is disposed downstream of the pressure reducing valve 402B, and the cleaning water whose pressure is reduced to a certain level by the pressure reducing valve 402B is supplied from the inlet 409B into the vacuum breaker 404B and flows toward the outlet 410B.

[0161] Normally, the cleaning water pushes the vacuum breaker valve 408B upward due to the water pressure, so the vacuum breaker 404B closes the flow path to the air inlet 412B. When the upstream side becomes negative pressure, the vacuum breaker valve 408B moves down, sucking in external air from the air inlet 412B to release the negative pressure on the upstream side, which can prevent the risk of sewage backflowing from the nozzle device 700 or the open water path.

[0162] In the above-mentioned embodiment of the water supply unit, it is conceivable to adopt a configuration in which a pump and a pressure reducing valve are added.

[0163] Figure 35 to Figure 37 The water supply unit shown is a water supply unit to which a water pump 600 and a pressure reducing valve 402C are added, and will be described below as a water supply unit 400C.

[0164] The water supply unit 400C includes a filter 401C, a water stop electromagnetic valve 403C, a pressure reducing valve 402C, a vacuum breaker 404C, and an open water passage 405C.

[0165] Clean water flowing through a water pipe (not shown) is supplied to filter 401C as washing water. Dirt, impurities, etc. contained in the washing water are removed by filter 401C.

[0166] The washing water from which dirt, impurities, etc. are removed by the filter 401C is supplied to the water stop solenoid valve 403C. The water stop solenoid valve 403C switches the supply state of the washing water to the downstream side. The operation of the water stop solenoid valve 403C is controlled by a control unit (not shown). When the washing water is supplied from the water stop solenoid valve 403C to the pressure reducing valve 402C, the pressure of the washing water flowing in the water supply unit 400C is reduced to a constant pressure by the pressure reducing valve 402C.

[0167] The vacuum circuit breaker 404C includes a vacuum adapter 406C, a vacuum cover 407C covering the vacuum adapter 406C, and a vacuum breaker valve 408C supported between the vacuum adapter 406C and the vacuum cover 407C.

[0168] The vacuum adapter 406C has an inlet 409C into which the washing water from the pressure reducing valve 402C flows, an outlet 410C toward the main water channel, and an outlet 411C toward the open water channel. The vacuum cover 407C has an air inlet 412C.

[0169] The vacuum breaker 404C is disposed downstream of the pressure reducing valve 402C. The cleaning water is reduced in pressure to a certain level by the pressure reducing valve 402C, supplied from the inlet 409C into the vacuum breaker 404C, further reduced in pressure by passing through the fixed orifice 413C, and flows toward the outlet 410C.

[0170] The smaller the washing flow rate set by the user, the smaller the flow rate passing through the fixed throttle hole 413C, the greater the water pressure applied to the outflow port 410C, and the greater the water pressure applied to the inlet of the water pump 600, so that the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and gentler washing water can be provided. Conversely, the larger the washing flow rate set by the user, the larger the flow rate passing through the fixed throttle hole 413C, the smaller the water pressure applied to the outflow port 410C, and the smaller the water pressure applied to the inlet of the water pump 600, so that the pulsation of the washing water flowing out of the nozzle device 700 can be eliminated, and stronger washing water can be provided.

[0171] Normally, the cleaning water pushes the vacuum breaker valve 408C upward due to the water pressure, so the vacuum breaker 404C closes the flow path to the air inlet 412C. When the upstream side becomes negative pressure, the vacuum breaker valve 408C moves down, sucking in external air from the air inlet 412C to release the negative pressure on the upstream side, which can prevent the risk of sewage backflowing from the nozzle device 700 or the open water path.

[0172] Even if sewage is likely to flow back from the nozzle device 700, the fixed orifice 413C can reduce the flow path of sewage flowing in from the outflow port 410C, thereby suppressing the backflow of sewage.

[0173] <Heat Exchanger>

[0174] The heat exchanger 500 is disposed at the left side of the water supply unit 400 of the base 250. The outlet 410 of the water supply unit 400 and the heat exchanger 500 are connected by a flexible hose (not shown).

[0175] The following is based on Figures 38 to 50 The heat exchanger 500 will be described in detail.

[0176] The heat exchanger 500 is formed in a rectangular parallelepiped shape with a relatively low height, and a surface with a larger area is placed on and fixed to the base 250 .

[0177] The heat exchanger 500 includes a lower case 510, an upper case 520 and a front structure 530 made of heat-resistant resin. The lower case 510 and the upper case 520 are integrally formed by welding or the like, and the front structure 530 is integrally formed by welding or the like at the front thereof.

[0178] The front structure 530 has an inlet tube 532 protruding vertically upwards, provided at the right position of the upper surface, where the inlet 531 for the washing water to flow into the internal space of the heat exchanger 500 is provided. The front structure 530 has an outlet tube 534 protruding vertically upwards, provided at the left position of the upper surface, where the washing water to flow out of the internal space of the heat exchanger 500 is provided.

[0179] By arranging the inlet tube portion 532 at the right side of the heat exchanger 500 , the distance between the inlet tube portion 532 and the water supply unit 400 can be shortened, and the piping connecting the water supply unit 400 and the inlet tube portion 532 can be shortened, thereby improving piping workability.

[0180] On the upper surface of the upper shell 520, a temperature detection component mounting portion 521, which is a mounting portion for a temperature detection component for detecting the empty burning of the heat exchanger 500, is divided by ribs. In this embodiment, a temperature fuse 522 is used as the temperature detection component, and the temperature fuse 522 and a wiring 523 to the temperature fuse 522 are arranged on the temperature detection component mounting portion 521. The heater structure 580 of the heat exchanger 500 is set to have a higher temperature on the inlet 531 side than on the outlet 533 side, so the temperature fuse 522 is installed at a position corresponding to the flow path on the inlet 531 side. The portion of the temperature detection component mounting portion 521 where the temperature fuse 522 is installed is configured to have a thin wall thickness, so that the empty burning of the heat exchanger 500 can be detected more reliably. The temperature detection component mounting portion 521 is covered by a temperature detection component cover 540 fixed to the upper shell 520. The temperature fuse 522 is set to a circuit structure that only cuts off the power supply to the heat exchanger 500.

[0181] In the heat exchanger 500 , a flow sensor 550 is mounted on the inlet tube portion 532 , and a hot water outlet module 560 is mounted on the outlet tube portion 534 via a common terminal plate 565 for ground connection.

[0182] The terminal plate 565 is composed of a metal plate and is connected to a ground terminal (not shown) connected to the power ground. The terminal plate 565 is always in contact with the washing water at the inlet 531 and the outlet 533. Thus, even if the basic insulation of the heater structure 580 is destroyed, it is possible to prevent leakage of electricity to the user or the water pipe through the washing water.

[0183] like Figure 42 to Figure 44As shown, the flow sensor 570 includes: a flow sensor housing 571, a flow sensor housing cover 572, an inlet water temperature sensor 573, an inlet water temperature sensor fixing member 574, a flow sensor shaft 575, an impeller 576 and a detection component 577 for detecting the rotation speed of the impeller 576.

[0184] The flow sensor housing 571 includes an inlet 578 for the water supply unit 400 and an outlet 579 for the heat exchanger 500 .

[0185] A flow sensor shaft 575 having an impeller 576 mounted thereon is mounted between the flow sensor housing 571 and the flow sensor housing cover 572. The inlet 578 is configured so that the cleaning water is supplied from the front lower portion to the tangential direction of the impeller 576, and the impeller 576 rotates around the flow sensor shaft 575 using the supplied cleaning water. The detection component 577 is disposed on the upper portion of the flow sensor 570, and is used to detect the rotation speed of the impeller 576 and output the measured flow value to the control unit. Thus, since dirt and garbage are easily accumulated at the lower portion, it is possible to suppress the situation where the detection component 577 cannot detect the rotation speed of the impeller 576.

[0186] The water inlet temperature sensor 573 is fixed to the flow sensor housing 571 by the water inlet temperature sensor fixing member 574. The water inlet temperature sensor 573 is assembled in such a manner that the metal portion is covered by the water inlet temperature sensor fixing member 574 and the metal portion is not exposed to the outside of the flow sensor 570. Thus, even if the insulation of the lead wires wired around the sensor is damaged by chance, leakage of electricity to the washing water through the metal portion of the water inlet temperature sensor 573 can be prevented.

[0187] The washing water flowing around the impeller 576 flows out from the upper front portion to the left, passes through the inlet water temperature sensor 573 and flows toward the outflow port 579 .

[0188] In addition, in this embodiment, the flow sensor 570 is installed at the inlet 531, but it may be installed downstream of the outlet 533. In this structure, the washing water heated by the heat exchanger 500 is supplied to the flow sensor 570, so the risk of scale adhering to the inside of the flow sensor 570 increases. Therefore, this embodiment has an advantage in quality.

[0189] based on Figures 45 to 50 The structure of the internal space of the heat exchanger 500 will be described. Fig.46 The heater structure 580 on the lower side is shown in a state in which it is reversed by 180 degrees.

[0190] The heater structure 580 is arranged in the horizontal direction in the internal space of the heat exchanger 500 , and is sandwiched and fixed by the upper shell 520 and the lower shell 510 via the lower sealing body 581 and the upper sealing body 582 .

[0191] The heater structure 580 has a terminal portion 583 at the center of the end portion on the side of the front structure 530. The terminal portion 583 connects a lead wire (not shown) to the heater of the heater structure 580 via the front structure 530. The lead wire connected to the terminal portion 583 is led out via a lead-out passage (not shown) formed in the front structure 530. The heater structure 580 has a plurality of through holes 584 constituting a part of the flow path formed on the end side opposite to the end where the terminal portion 583 is provided.

[0192] The internal space of the heat exchanger 500 is divided vertically by the heater structure 580, and the divided upper space and lower space are formed to have substantially equal volumes. An upper sealing body 582 and a lower sealing body 581 made of silicone rubber are disposed in the upper space and the lower space, respectively.

[0193] The upper sealing body 582 has a surrounding sealing body 582a and three dividing sealing bodies 582b, 582c, and 582d extending in the front-to-back direction and connected to the surrounding sealing body 582a. The surrounding sealing body 582a and the dividing sealing bodies 582b, 582c, and 582d are in close contact with the inner surface of the upper shell 520 and the upper surface of the heater structure 580 to seal, forming a flow path (upper side flow path) between the inner surface of the upper shell 520 and the heater structure 580.

[0194] The upper sealing body 582 includes a connecting sealing body 582e that connects the left and right dividing sealing bodies 582b and the dividing sealing body 582d on the front structure 530 side and is connected to the central dividing sealing body 582c. The connecting sealing body 582e makes the surface of the upper sealing body 582 on the heater structure 580 side lower than the other parts of the upper sealing body 582, and forms a flow path (upper side flow path) between the connecting sealing body 582e and the heater structure 580.

[0195] The lower sealing body 581 has a surrounding sealing body 581a and three dividing sealing bodies 581b, 581c, and 581d extending in the front-to-back direction and connected to the surrounding sealing body 581a. The surrounding sealing body 581a and the dividing sealing bodies 581b, 581c, and 581d are in close contact with the inner surface of the lower shell 510 and the lower surface of the heater structure 580 to seal, forming a flow path (lower side flow path) between the inner surface of the lower shell 510 and the heater structure 580.

[0196] The lower seal 581 has, on the front structure 530 side, a right connecting seal 581e that connects the right side portion of the peripheral seal 581a and the central dividing seal 581c; and a left connecting seal 581f that connects the left side portion of the peripheral seal 581a and the central dividing seal 581c. The right connecting seal 581e and the left connecting seal 581f form a surface of the heater structure 580 side of the lower seal 581 lower than other parts of the lower seal 581. Thus, a flow path (lower flow path) is formed between the right connecting seal 581e and the heater structure 580 and between the left connecting seal 581f and the heater structure 580.

[0197] The heater structure 580 includes a heater (not shown), and the heater is arranged slightly apart from the surrounding sealing body 582a and the partitioning sealing bodies 581b, 581c, and 581d of the upper sealing body 582. In addition, the heater is arranged slightly apart from the surrounding sealing body 581a and the partitioning sealing bodies 581b, 581c, and 581d of the lower sealing body 581. This prevents the heater from being locally overheated and suppresses a decrease in durability.

[0198] The heater sets the ratio of the power on the inlet 531 side to the power on the outlet 533 side so that the power on the inlet 531 side is higher. In this embodiment, the ratio of the power on the inlet 531 side to the power on the outlet 533 side is set to 3:2.

[0199] The washing water supplied from the inlet 531 flows into the flow path between the partitioning seal 582b on the right side of the upper space and the surrounding seal 581a. The washing water flows toward the rear side while being heated by the heater structure 580, and flows into the flow path between the partitioning seal 581b on the right side of the lower space and the surrounding seal 581a from the through hole 584. The washing water flows toward the front side while being heated by the heater structure 580, passes over the right connecting seal 581e, and flows into the flow path between the partitioning seal 581b on the right side and the partitioning seal 581c in the center.

[0200] The washing water flows toward the rear side while being heated by the heater structure 580, and flows into the flow path between the right partition seal 582b and the center partition seal 582c of the upper space from the through hole 584. The washing water flows toward the front side while being heated by the heater structure 580, and flows into the flow path between the center partition seal 582c and the left partition seal 582d over the connecting seal 582e. The washing water flows toward the rear side while being heated by the heater structure 580, and flows into the flow path between the center partition seal 581c and the left partition seal 581d of the lower space from the through hole 584.

[0201] The washing water flows toward the front side while being heated by the heater structure 580, passes over the left connecting seal 581f, and flows into the flow path between the surrounding seal 581a and the left partition seal 581d. The washing water flows toward the rear while being heated by the heater structure 580, and flows into the flow path between the surrounding seal 582a in the upper space and the left partition seal 582d from the through hole 584. The washing water flows toward the front while being heated by the heater structure 580, and is supplied from the outlet 533 to the nozzle device 700 via a hose (not shown).

[0202] The following structure can be considered: the inlet 531 is formed on the upper shell 520 side, the outlet 533 is formed on the lower shell 510 side, and the washing water flows in the upper flow path and then flows to the lower flow path. If it is set to this structure, it is expected that the movement amount of the flow in the upward and downward directions will decrease, and the flow path resistance can be reduced.

[0203] However, in this structure, a piping space for the outlet 533 is required below the lower housing 510, which increases the installation space. In addition, since the piping work for the outlet 533 is performed in the gap between the lower housing 510 and the base 250, the workability is poor.

[0204] In the present embodiment, the washing water flows alternately in the upper flow path and the lower flow path, and a plurality of flow paths are formed in each of the upper and lower parts.

[0205] In this embodiment, four flow paths are formed in the upper and lower parts, respectively. Thus, the inlet 531 and the outlet 533 can be formed on the upper shell 520 side. Thus, the space for the piping to the inlet 531 and the outlet 533 can be formed only on the upper shell 520 side, thereby eliminating the disadvantage of increasing the installation space.

[0206] In addition, four flow paths are formed in each of the upper and lower parts, but two flow paths may be formed, or six or more flow paths may be formed. By forming a plurality of upper and lower flow paths, the inlet 531 and the outlet 533 can be formed on the upper case 520 side.

[0207] The inner surface of the upper shell 520 constituting the flow path is formed with a convex-concave shape and a convex portion 524. The convex portion 524 is continuously formed in a mountain shape, with a steep slope on the upstream side and a gentle slope on the downstream side.

[0208] The inner surface of the flow path constituting the lower case 510 has a concavo-convex shape with a convex portion 514. The convex portion 514 is continuously formed in a mountain shape, with a steep slope on the upstream side and a gentle slope on the downstream side.

[0209] like Fig.49As shown in the figure, the convex parts 514 and 524 are shaped to be close to the heater structure 580 side on the upstream side, so the washing water flowing in the flow path is guided to the heater structure 580 side on the upstream side of the convex parts 514 and 524, and flows gently in an inclined direction to the downstream side after passing over the top of the convex parts 514 and 524. When passing over the top of the convex parts 514 and 524, the flow path volume becomes larger, so the washing water becomes turbulent and the temperature is uniform. By narrowing and widening the flow path using the convex parts 514 and 524, the thermal conductivity can be increased and the temperature of the washing water can be uniform.

[0210] By increasing the thermal conductivity of the heater structure 580 , the surface temperature of the heater structure 580 can be suppressed, and adhesion of scale to the heater structure 580 can be suppressed.

[0211] The heater structure 580 includes a heater (not shown) which is slightly separated from the upper sealing body 582 and the lower sealing body 581 , thereby preventing the heater from being overheated and suppressing the adhesion of scale to the heater structure 580 .

[0212] When bubbles invade the interior of the heat exchanger 500, Fig.49 As shown, the bubbles tend to stay on the downstream side of the protrusions 514 and 524.

[0213] In this embodiment, if Fig.50 As shown, the convex portions 514 and 524 have a gently inclined downstream side, so that the bubbles flow toward the downstream side along the inclination of the convex portions 514 and 524 and are discharged from the heat exchanger 500 .

[0214] The nozzle device 700 is arranged on the left side of the heat exchanger 500. The detailed structure of the nozzle device 700 is omitted.

[0215] <Water Pump>

[0216] A water pump 600 serving as a variable discharge volume member is provided on the right side of the nozzle device 700. In the present embodiment, a diaphragm pump is used as the water pump 600.

[0217] In addition, a configuration in which the water pump 600 is not used is also possible.

[0218] like Figure 51 to Figure 55 As shown, the water pump 600 includes a pump mechanism 610 and a motor 620, and is formed in a substantially cylindrical shape. The pump mechanism 610 is equipped with an elastic member A630 covering the entire circumference of the end side. The motor 620 is equipped with an elastic member B640 covering the entire circumference of the end side on the side opposite to the elastic member A630. The elastic members A630 and B640 are formed of a material having elasticity such as a foamed resin.

[0219] The water pump 600 is mounted in the recess 605a of the pump housing 605 with the elastic member A630 and the elastic member B640 mounted thereon. The motor unit 620 of the water pump 600 is fixed by engaging the claws 606a of the pump fixing member 606 with the fixing claws 605b of the pump housing 605.

[0220] The water pump 600 is formed in a cylindrical shape, and a water supply cylinder 600b having a water supply port 600a and a discharge cylinder 600d having a discharge port 600c are formed to protrude perpendicularly from one end surface. The water pump 600 is horizontally arranged with the end surface having the water supply cylinder 600b and the discharge cylinder 600d facing forward.

[0221] The pump housing 605 is fixed to a predetermined position of the base 250 by means of an elastic member C650.

[0222] The water pump 600 uses the elastic member A630 , the elastic member B640 , and the elastic member C650 to absorb vibrations of a wide frequency range, and can effectively suppress the transmission of vibrations to the main body 200 .

[0223] The movement of the lead wire 607 of the water pump 600 is restricted by the fixing claw 606b and the locking claw 605c.

[0224] The water pump 600 is fixed to the base 250 by screwing or claw fitting, so the water pump 600 can be removed independently of the nozzle device 700, which can improve maintenance workability. In addition, the vibration of the water pump 600 can be suppressed from being directly transmitted to the nozzle device 700.

[0225] In addition, if Fig.55 As shown, a drain port 608 is formed in the pump housing 605. When the pump mechanism 610 of the water pump 600 is damaged and water leaks, water can be discharged from the drain port 608. Water discharged from the drain port 608 is discharged from the base 250 through the inclined surface 240 into the toilet 110.

[0226] In the present embodiment, a detection member (not shown) is provided for detecting water discharged from the water discharge port 608. The detection member detects water leakage in the pump mechanism 610 and notifies a failure.

[0227] In the present embodiment, the detection component is configured to detect water from the drain port 608, but the present invention is not limited thereto, and any component may be used as long as it detects water leakage from the pump mechanism 610. In addition, the detection component may be configured to detect, for example, a situation in which electricity is conducted between a pair of terminals due to water leakage, and a known structure may be used.

[0228] The water supply port 600a of the water pump 600 is connected to the outlet 533 of the heat exchanger 500 via a connection pipe made of soft resin.

[0229] Hereinafter, the structure of the water pump 600 will be described in detail based on the drawings.

[0230] Fig.56 It is an exploded perspective view showing the diaphragm pump for liquid according to the present invention. Fig.57 It is a cross-sectional view of the main parts.

[0231] The cover body 1 is a relatively thin cylindrical shape, and is installed on the surface 3a side of the middle cover body 3 via a seal 2 composed of an elastic member. The cover body 1 has a through hole 1c formed in the center portion through which the chimney-shaped discharge hole 37 of the middle cover body 3 can pass. In addition, the cover body 1 is provided with a suction hole 12 that can suck liquid, and a cover suction chamber 38 that is a part of the suction path 30 for the sucked liquid to flow is provided on the back side 1b of the cover, and the cover suction chamber 38 is connected to the suction hole 12.

[0232] The middle cover body 3 is formed into a cylindrical shape made of resin, and a discharge hole 37 is protrudingly provided at the center portion of the surface 3a. A groove portion (not shown) is formed on the back of the middle cover body 3 for discharging the liquid from the discharge hole 37 to the outside, so that the groove portion is connected to the discharge hole 37. In addition, the middle cover body 3 forms a valve seat portion 34 at the bottom of the groove portion. A total of three valve seat portions are arranged at equal intervals of 120 degrees in the circumferential direction with the discharge hole 37 as the center. In addition, on the surface 3a side of the middle cover body 3, a suction chamber 33 of a circular groove portion is formed corresponding to the three valve seat portions 34. The suction chamber 33 constitutes a part of the suction path 30 for the flow of the sucked liquid.

[0233] The valve seat portion 34 is short cylindrical, and a mounting hole (not shown) is formed at the center of the top wall portion 35 through the suction chamber 33 to mount the suction valve body 4. The top wall portion 35 of the valve seat portion 34 has a suction hole 32 of the suction path 30 that can suck in liquid near the mounting hole.

[0234] The discharge valve diaphragm 52 of the diaphragm assembly 5 contacts the valve seat portion 34 in a manner that covers the valve seat portion 34 in a close and detachable manner. The top end wall portion 35 of the valve seat portion 34 is configured to contact and detach with the valve portion 4a of the suction valve body 4 so that the suction hole 32 can be opened and closed freely. While three valve seat portions 34 are formed, the suction valve body 4 is provided with two, so that one valve seat portion 34 is not covered by the suction valve body 4.

[0235] The diaphragm assembly 5 is composed of three bowl-shaped diaphragms 50 which are equally spaced at intervals of 120 degrees in the circumferential direction and connected by a diaphragm 54 formed at the axis. A seal edge 53 is formed on the outer peripheral edge of the diaphragm 54, and a discharge valve diaphragm 52 is provided protruding from the diaphragm 54 to the outer peripheral side. The diaphragm 50 is provided with a driving unit 51 for reciprocating the diaphragm 50.

[0236] The sealing edge 53 of the diaphragm assembly 5 is clamped between the middle cover body 3 and the holding member 6, and the holding member 6 is provided with a hole portion through which the driving portion 51 of the diaphragm 50 can pass. The driving portion 51 of the diaphragm 50 passing through the holding member 6 is supported by the locking hole 71 of the swing plate 7. The swing plate 7 is arranged in a cylindrical case 13 with a bottom, and the end of the cylindrical case 13 is in contact with the holding member 6.

[0237] A small DC motor 11 is arranged outside the cylindrical housing 13, and an output shaft 11a of the motor 11 extends into the cylindrical housing 13, and an eccentric rotating body 9 is mounted on the output shaft 11a. The eccentric rotating body 9 has a shaft mounting hole 91 for inserting the output shaft 11a and an eccentric hole 92 arranged eccentrically with respect to the shaft mounting hole 91, and the crankshaft 8 passes through the eccentric hole 92 in an inclined state.

[0238] The diaphragm pump inserts and installs the diaphragm assembly 5 in a manner that the diaphragm assembly 5 is clamped by the middle cover body 3 and the retaining member 6, thereby forming a pump chamber 25 on the inner surface side of the discharge valve diaphragm 52, and forming a common discharge space 36 with a discharge hole 37 composed of a groove portion 39 and a diaphragm 54 on the outer surface side of the discharge valve diaphragm 52.

[0239] The cylindrical housing 13 is fixed to the motor 11 by screws 14. The cover 1, the seal 2, the middle cover 3, the diaphragm assembly 5 and the holding member 6 are sequentially stacked on the cylindrical housing 13 and fixed to the cylindrical housing 13 by long screws 15, thereby forming the housing 10.

[0240] In the present disclosure, three valve seat portions 34 and two suction valve bodies 4 are provided. However, for example, a configuration may be adopted in which four valve seat portions 34 and three suction valve bodies 4 are provided.

[0241] The operation of the diaphragm pump for liquid having the above-described structure will be described.

[0242] When the output shaft 11a of the motor 11 is rotated, the eccentric rotating body 9 mounted on the output shaft 11a rotates, causing the swing plate 7 to swing via the crankshaft 8, and causing the driving portion 51 of the diaphragm 50 to reciprocate. The diaphragm 50 is repeatedly expanded and compressed by the reciprocating motion of the driving portion 51. As a result, the pump chamber 25 formed by the valve seat portion 34 of the middle cover body 3 and the diaphragm 50 is compressed and expanded.

[0243] When the pump chamber 25 expands, the pump chamber 25 becomes negative pressure, and the valve portion 4a of the suction valve body 4 is pulled away from the suction valve seat portion 35a. The suction hole 32 of the suction path 30 formed in the top end wall portion 35 of the valve seat portion 34 becomes open to the pump chamber 25. As a result, the liquid flows from the suction hole 12 in the suction path 30 formed by the cover suction chamber 38 of the cover body 1 and the suction chamber 33 of the middle cover body 3 and flows into the pump chamber 25.

[0244] Furthermore, by making the pump chamber 25 negatively pressurized, the discharge valve diaphragm 52 of the diaphragm 50 is in close contact with the valve seat portion 34. This prevents the liquid from flowing out of the common discharge space 36 formed by the outer surface of the discharge valve diaphragm 52, the diaphragm 54, and the groove portion 39 of the middle cover body 3, or from flowing back from the common discharge space 36.

[0245] When the pump chamber 25 is compressed, the valve portion 4a of the suction valve body 4 is pressed and contacts the suction valve seat portion 35a. The suction hole 32 of the suction path 30 formed in the top wall portion 35 of the valve seat portion 34 is cut off by the valve portion 4a. As a result, the suction valve body 4 prevents the liquid from flowing in and out of the suction hole 32. In addition, due to the compression of the pump chamber 25, the discharge valve diaphragm 52 becomes enlarged and separates from the valve seat portion 34, and the liquid in the pump chamber 25 is pressed to the common discharge space 36.

[0246] When the pump chamber 25 is compressed, the discharge valve diaphragm 52 expands toward the common discharge space 36, compressing the liquid in the common discharge space 36 and pushing the liquid toward the discharge hole 37. Thus, the outer diaphragm surface of the discharge valve diaphragm 52 operates to pressurize the liquid.

[0247] When the pump chamber 25 at a position where the valve portion 4a is not arranged is compressed, since the suction hole 32 remains open, when the pump chamber 25 is compressed, the amount of liquid in the pump chamber 25 pushed back from the pump chamber 25 to the suction path 30 increases. The liquid pushed back to the suction path 30 is pressure-fed to the pump chamber 25 where the valve portion 4a is arranged.

[0248] On the other hand, the discharge valve diaphragm 52 expands toward the common discharge space 36, but the pressure applied to the discharge valve diaphragm 52 is low, and the discharge amount to the common discharge space 36 is small, and the pressure of the cleaning water sprayed by the sanitary cleaning device to the local part of the human body becomes low. In other words, the spraying to the local part of the human body is temporarily interrupted or is in a low-pressure spraying state.

[0249] Since a normal amount of water is generated to spray cleaning water force toward the local part of the human body at the position where the valve portion 4a is configured, the water pressure at the position where the valve portion 4a is configured and the water pressure at the position where the valve portion 4a is not configured change, resulting in pulsation of the cleaning water pressure.

[0250] The liquid pushed back to the suction path 30 at the position where the valve portion 4a is arranged is pumped to the pump chamber 25 where the valve portion 4a is arranged, acts between the pump chambers 25, and generates a cleaning water pressure that compresses the diaphragm sequentially in the rotation direction of the actuator.

[0251] When a diaphragm pump having a structure with two valve portions 4a and a diaphragm pump having a structure with three valve portions 4a of the present invention were manufactured and their performances were compared, the diaphragm pump having a structure with two valve portions 4a of the present invention was able to generate a cleaning water pressure that was approximately twice the maximum cleaning water pressure of the diaphragm pump having a structure with three valve portions 4a.

[0252] The drying device 220 is disposed at the left side of the nozzle device 700. The drying device 220 dries the water adhering to the cleaned local area by generating warm air.

[0253] A deodorizing device 230 for deodorizing the odor in the toilet 110 is arranged on the left side of the drying device 220 .

[0254] Industrial Applicability

[0255] The sanitary washing device of the present disclosure can improve the workability of mounting various functional components on the base, and thus can also be applied to a sanitary washing device that does not have a toilet cover.

[0256] Description of Reference Numerals

[0257] 100, sanitary cleaning device; 110, toilet; 200, main body; 220, drying device; 230, deodorizing device; 250, base; 270, rear shell; 290, front shell; 300, toilet seat; 320, toilet cover; 400, water supply unit; 500, heat exchanger; 600, water pump; 700, nozzle device.

Claims

1. A sanitary cleaning device, wherein: The sanitary cleaning device has: Main body; a heat exchanger disposed in the main body and used for heating cleaning water; and A nozzle device is arranged in the main body and protrudes from the main body to clean the human body. The heat exchanger has an inlet tube and an outlet tube on the upper surface. The heat exchanger comprises a lower shell and an upper shell. In the internal space of the heat exchanger, the heater structure is arranged in the horizontal direction and is clamped and fixed by the upper shell and the lower shell via the lower sealing body and the upper sealing body. The upper sealing body includes an upper peripheral sealing body and an upper partitioning sealing body extending in the front-rear direction and connected to the upper peripheral sealing body. The upper peripheral sealing body and the upper partition sealing body are in close contact with the inner surface of the upper shell and the upper surface of the heater structure to form an upper flow path between the inner surface of the upper shell and the heater structure. The lower sealing body comprises a lower peripheral sealing body and a lower partitioning sealing body extending in the front-rear direction and connected to the lower peripheral sealing body. The lower peripheral sealing body and the lower partition sealing body are in close contact with the inner surface of the lower shell and the lower surface of the heater structure to form a lower flow path between the inner surface of the lower shell and the heater structure. The heater structure is formed with through holes, the through holes including a first through hole and a second through hole, The cleaning water supplied from the inlet tube flows into the upper flow path between the upper partition seal and the upper peripheral seal, and flows toward the rear side of the heat exchanger while being heated by the heater structure. Next, the cleaning water flows into the lower flow path between the lower partition seal body and the lower peripheral seal body through the first through hole, and the cleaning water flows toward the front side of the heat exchanger while being heated by the heater structure. Furthermore, the washing water flows into the flow path between the lower peripheral sealing body and the lower partitioning sealing body, and the washing water flows toward the rear of the heat exchanger while being heated by the heater structure. Finally, the cleaning water flows into the upper flow path between the upper peripheral sealing body and the upper partitioning sealing body through the second through hole, and the cleaning water flows toward the front side of the heat exchanger while being heated by the heater structure, and The washing water is supplied from the outlet tube portion toward the nozzle device.

2. The sanitary cleaning device according to claim 1, wherein: The lower sealing body includes a lower connecting sealing body intersecting with the lower dividing sealing body, and The lower connecting sealing body has a surface of the lower connecting sealing body on the heater structure side formed lower than other portions of the lower connecting sealing body, and the lower flow path is formed between the lower connecting sealing body and the heater structure.

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