Toilet device

Abstract

The invention provides a toilet flushing device, which can restrain reduction of air suction performance of an opening part which sucks air in a toilet due to an opening part which sucks moisture in a shell of a deodorization device. A toilet device is provided with: a case; the deodorization device is arranged in the shell, and the deodorization device is provided with a first opening part capable of sucking air outside the shell; a second opening part which can suck air in the housing; a third opening part capable of discharging air sucked through the first opening part and the second opening part to the outside of the shell; a suction fan that sucks air outside and inside the case from the first opening and the second opening; a first deodorization path part which is communicated with the first opening part, the second opening part and the suction fan; and a second deodorization path part communicating the suction fan and the third opening part, the opening area of the second opening part being smaller than that of the first opening part.

Description

Technical Field

[0001] Aspects of the present invention generally relate to a toilet flushing device. Background Art

[0002] If corrosion occurs on the electronic parts inside the housing of the toilet device, the toilet device may unexpectedly operate or fail to operate. One of the main causes of the corrosion is condensation of moisture. In order to suppress condensation due to such moisture, a toilet device is known in which an opening for sucking air in the housing is provided on a deodorizing device for sucking air in the toilet bowl, and moisture in the housing is sucked from the opening (for example, Patent Documents 1 and 2).

[0003] Patent Literature Patent Document 1: Japanese Patent Application Publication No. 2002-266406 Patent Document 2: Japanese Patent Application Publication No. 2007-092396 Summary of the invention

[0004] In the above-mentioned toilet flushing device, the opening for sucking air in the air suction housing of the deodorizing device may reduce the suction performance of the opening for sucking air in the toilet bowl. If the suction performance is reduced, sufficient deodorizing performance may not be obtained.

[0005] The present invention is made to solve the above-mentioned problems, and the technical problem to be solved is to provide a toilet flushing device which can suppress the reduction of air suction performance at the opening for sucking air in the toilet bowl due to the opening for sucking moisture in the suction shell of the deodorizing device.

[0006] A toilet flushing device involved in one form of an embodiment of the present invention comprises: a shell; and a deodorizing device, which is arranged inside the shell, and is characterized in that the deodorizing device has: a first opening portion, which can suck air outside the shell; a second opening portion, which can suck air inside the shell; a third opening portion, which can discharge the air sucked through the first opening portion and the second opening portion to the outside of the shell; a suction fan, which sucks air outside and inside the shell from the first opening portion and the second opening portion; a first deodorizing path portion, which connects the first opening portion, the second opening portion and the suction fan; and a second deodorizing path portion, which connects the suction fan and the third opening portion, and the opening area of ​​the second opening portion is smaller than that of the first opening portion.

[0007] According to a toilet flushing device according to one embodiment, the opening area of ​​the second opening is smaller than that of the first opening. Therefore, when the suction fan is driven, the air volume sucked from the second opening can be made smaller than the air volume sucked from the first opening. Thus, by providing the second opening on the deodorizing device, it is possible to suppress a decrease in suction at the first opening.

[0008] In a toilet flushing device involved in one form of an implementation, there is also a human body detection sensor for detecting a human body, so that the suction fan is rotated at a specified rotation speed until a first time has passed since the state in which the human body detection sensor detects a human body is changed to a state in which the human body is not detected, and is rotated at a rotation speed less than the specified rotation speed until a second time has passed after the first time has passed.

[0009] According to a toilet flushing device according to one embodiment, the suction fan is rotated at a specified speed from the time when the state in which the human body detection sensor detects a human body to the state in which the human body is not detected until a first time has passed, and is rotated at a speed less than the specified speed from the time the first time has passed until a second time has passed. Thus, the driving sound of the suction fan during the second time can be made smaller than the driving sound of the suction fan during the first time. Therefore, when moisture is sucked during the second time, even if there is a user in the toilet where the toilet flushing device is installed or another user replaces the user who enters the toilet after using the toilet, the discomfort caused by the driving sound of the suction fan can be suppressed, and condensation inside the shell can be suppressed.

[0010] In a toilet flushing device involved in one form of an embodiment, there is also a human body detection sensor for detecting a human body, so that the suction fan is rotated at a specified speed until a first time has passed since the state in which the human body detection sensor detects a human body is changed to a state in which the human body is not detected, and the suction fan is rotated at a speed greater than the specified speed until a second time has passed after the first time has passed, and the suction fan is rotated at a speed less than the specified speed until a third time has passed after the second time has passed.

[0011] When a toilet is cleaned and there are people staying in the toilet, or when a toilet that has been used by someone else is cleaned and someone replaces the person entering the toilet, the driving sound of the suction fan may cause discomfort. On the other hand, since the rotation speed of the suction fan during sitting is controlled to a level that does not make the person sitting feel uncomfortable, it is preferred to suck as much odor and moisture as possible during the period when no one is in the toilet after leaving the seat. Therefore, according to a toilet flushing device involved in one form of the embodiment, the driving sound of the suction fan is suppressed from causing discomfort to people, and the suction performance of the suction fan is improved, thereby further suppressing condensation inside the shell.

[0012] In the toilet device according to one aspect of the embodiment, the second time period is shorter than the third time period.

[0013] According to the toilet device according to one aspect of the embodiment, the period when the rotation speed is higher than the specified rotation speed is made shorter than the period when the rotation speed is lower than the specified rotation speed, thereby preventing the suction fan from being driven at a rotation speed higher than the specified rotation speed for a long period of time, and further preventing the driving sound from causing discomfort to people.

[0014] In the toilet device according to one aspect of the embodiment, the case further includes a fourth opening that allows air to flow between the outside of the case and the inside of the case.

[0015] According to a toilet flushing device according to one form of an embodiment, the shell further includes a fourth opening that allows air to circulate between the outside of the shell and the inside of the shell. As a result, the air inside the shell easily flows out and the air outside the shell easily flows in, and the air pressure difference between the inside and outside of the shell can be reduced. For example, there is a gap on the shell that connects the inside and outside of the shell. When the inside of the shell is under negative pressure due to air being sucked from the second opening, although moisture may easily flow into the shell from the gap, by reducing the air pressure difference between the inside and outside of the shell, moisture can be suppressed from flowing into the shell.

[0016] In the toilet device according to one aspect of the embodiment, a filter having a mesh is provided at the fourth opening.

[0017] According to the toilet device according to one aspect of the embodiment, a filter having a mesh is provided at the fourth opening, so that, for example, even when the inside of the shell is under negative pressure, it is possible to suppress dirt and dust from entering the inside of the shell through the fourth opening.

[0018] In the toilet device according to one aspect of the embodiment, the deodorizing device further includes a reinforcing rib that suppresses suction of air from a predetermined direction toward the second opening.

[0019] According to a toilet flushing device involved in one form of an embodiment, the deodorizing device has a reinforcing rib that suppresses the suction of air from a specified direction toward the second opening. Thus, the reinforcing rib suppresses the suction from the specified direction toward the second opening, and can preferentially attract air from directions other than the specified direction. For example, the suction of air from the direction of the second opening and the portion in the connecting shell where condensation is difficult to form is suppressed, thereby preferentially attracting moisture from portions in the shell where condensation is easy to form. Thus, condensation in the shell can be suppressed, and at the same time, restrictions on the layout of parts in the shell such as electronic parts being arranged only in portions inside the shell where condensation is difficult can be suppressed. Furthermore, portions in the shell where condensation is easy to form are, for example, portions where there is no heating unit around and where it is easy to cool, and portions in the shell where condensation is difficult to form are, for example, portions where there is a heating unit around.

[0020] In a toilet flushing device involved in one form of an implementation, there is also a human body detection sensor for detecting a human body, so that the suction fan rotates at a specified rotation speed when the human body detection sensor detects a human body, and when the human body detection sensor does not detect a human body, the suction fan rotates at a rotation speed less than the specified rotation speed until a specified time has passed since the human body is not detected.

[0021] According to the toilet device according to one aspect of the embodiment, even when other users frequently enter the toilet after the user has used the toilet, discomfort caused by the driving sound of the suction fan can be suppressed, and condensation inside the housing can be suppressed.

[0022] According to one aspect of the embodiment, it is possible to provide a toilet device capable of suppressing a decrease in the suction performance of the opening portion that sucks air in the toilet bowl due to the opening portion that sucks moisture in the case. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a side view showing a toilet unit including a toilet device according to one embodiment of the present invention. Figure 2 It is a rear view showing the appearance of the toilet device according to one embodiment of the present invention. Figure 3 This is a plan view showing the interior of the case of the toilet device according to one embodiment of the present invention without using the case. Figure 4 yes Figure 3 The shell is not omitted and the cross-sectional view is viewed from the direction of arrow AA. Figure 5 from Figure 1 Cross-sectional view viewed in the direction of arrow BB. Figure 6 Is magnification Figure 5An enlarged view of the area near arrow B1. Figure 7 yes Figure 3 The shell is not omitted and the cross-sectional view is viewed from the direction of arrow CC. Figure 8 yes Figure 3 The shell is not omitted and the cross-sectional view is viewed from the direction of arrow DD. Fig. 9 It is a top view illustrating the air flow in the case. Fig.10 It is a timing chart showing the detection state of the human detection sensor and the driving state of the suction fan. Fig.11 1 is a timing chart showing the detection state of the human body detection sensor and the driving state of the suction fan of the toilet device according to the modified example. Explanation of symbols 1-toilet flushing unit; 2-toilet bowl; 10-toilet flushing device; 12-toilet seat; 13-seat detection sensor (human body detection sensor); 14-toilet cover; 15-control unit; 20-shell; 21-side part; 22-left side panel; 23-right side panel; 24-rear side panel; 25-lower side panel; 26-lower part; 27-upper part; 28-first opening; 29-third opening; 29a-louver opening; 30-louver; 31-second opening; 3 2-fourth opening; 33-first suction opening; 34-second exhaust opening; 40-deodorizing device; 41-first deodorizing path; 42-fan; 43-second deodorizing path; 44-gap (gap of shell); 45-filter; 46-mesh; 47-panel; 48-deodorizing medium; 50-reinforcement rib; 51-remote control light receiving part; 52-second suction opening; 53-first exhaust opening; 55-nozzle; 57-entrance; 60-opening. DETAILED DESCRIPTION

[0024] Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. In each of the drawings, the same components are denoted by the same reference numerals and detailed descriptions thereof are appropriately omitted.

[0025] Figure 1 FIG. 2 is a side view showing a toilet unit including a toilet device according to an embodiment of the present invention. Figure 1As shown, the toilet unit 1 is provided in a restroom and includes a toilet 2 and a toilet device 10 mounted on the toilet 2. The toilet device 10 includes a toilet seat 12, a toilet cover 14, and a shell 20. The toilet seat 12 and the toilet cover 14 are pivotally supported on the shell 20 so as to be openable and closable. In the present application specification, the upper, lower, front, rear, right, and left directions viewed from a user who sits on the toilet seat 12 with his back to the toilet cover 14 in an opened state are referred to as "upper", "lower", "front", "rear", "right", and "left", respectively.

[0026] The toilet device 10 is installed on the upper surface of the rear side of the toilet 2. The toilet device 10 can be installed in the toilet 2 in an integral manner or in a detachable manner. The toilet device 10 includes: a housing 20 formed in a hollow box shape; and a deodorizing device 40 provided inside the housing 20 and having a function of reducing odor.

[0027] In addition, inside the shell 20, as required, there are built-in: an opening and closing unit (not shown) for controlling the opening and closing of the toilet cover 14 or the toilet seat 12; a washing unit (not shown) for washing the human body; and a communication unit (not shown) for communicating with an operating unit such as a remote controller. The shell 20 rotatably supports the toilet seat 12 and the toilet cover 14 on the rear side. In addition, the toilet cover 14 is provided on the toilet flushing device 10 as required, or it may not be provided.

[0028] A human body detection sensor for detecting a human body, i.e., a seat detection sensor 13 for detecting whether a user is seated or not, is provided on the toilet seat 12. The seat detection sensor 13 detects a state in which a human body is detected, i.e., a state in which a user is seated. In addition, the seat detection sensor 13 can also detect a state in which a human body is not detected, i.e., a state in which a user is not seated (a state in which the user has left the seat). Furthermore, the location in which the seat detection sensor is provided is not limited to the toilet seat, but can also be provided on a shell, for example. In addition, as a human body detection sensor, for example, an entry detection sensor for detecting entry into a restroom or a proximity detection sensor for detecting approaching a toilet flushing device can be used instead of a seat detection sensor.

[0029] Figure 2 It is a rear view showing the appearance of the toilet device according to one embodiment of the present invention. Figure 3 This is a plan view showing the interior of the case of the toilet device according to one embodiment of the present invention without using the case. Figure 4 yes Figure 3 The shell is not omitted and the cross-sectional view is viewed from the direction of arrow AA. Figure 5 from Figure 1 Cross-sectional view viewed in the direction of arrow BB. Figure 6 Is magnification Figure 5 An enlarged view of the area near arrow B1. Figure 7 yes Figure 3 The shell is not omitted and the cross-sectional view is observed from the direction of arrow CC.

[0030] like Figure 2 , 4 As shown, the shell 20 has: a side portion 21; a lower portion 26 blocking the lower end of the side portion 21; and an upper portion 27 blocking the upper end of the side portion 21. The side portion 21 has: a left panel 22 and a right panel 23 opposite to each other in the left-right direction; and a rear panel 24 at the rear end side connecting the left panel 22 and the right panel 23. In addition, the lower portion 26 has a lower panel 25 connecting the left panel 22, the right panel 23, and the rear panel 24. Figure 4 , 6 As shown, the lower panel 25 has a first opening 28 and a fourth opening 32 that communicate the inside and outside of the shell 20. Figure 4 As shown, the rear side panel 24 has a third opening 29 that connects the inside and outside of the shell 20. Here, the first opening 28 is an opening that can absorb air from the outside of the shell 20, and is connected to the first deodorization path 41 of the deodorization device 40 inside the shell 20, and is used for the deodorization device 40 to absorb the odor of the toilet 2. In addition, the third opening 29 is an opening that can discharge the sucked air to the outside of the shell 20, and is connected to the second deodorization path 43 of the deodorization device 40 inside the shell 20, and is used to discharge the air F whose odor has been reduced by the deodorization device 40. Moreover, the fourth opening 32 is an opening that allows air to circulate between the outside of the shell 20 and the inside of the shell 20, and is used to adjust the air pressure inside the shell 20.

[0031] like Figure 3 As shown, in this embodiment, the first opening 28 is formed on the left front side of the toilet device 10 and on the upper side of the bowl surface of the toilet 2. Furthermore, if the first opening 28 can draw air in the toilet 2, it can also be formed at a different position such as on the right side of the toilet device 10 as needed.

[0032] like Figure 2 As shown, in this embodiment, the third opening 29 is formed on the left side of the rear panel 24. Furthermore, the third opening 29 may also be formed on the left panel 22 or the right panel 23 as required.

[0033] like Figure 6 As shown, in this embodiment, the fourth opening 32 is formed on the left side of the toilet device 10, connecting the outside of the toilet 2 with the inside of the shell 20. And, as needed, the fourth opening 32 can also be formed on the right side or rear side of the toilet 2 outside the toilet device 10.

[0034] A plurality of louvers 30 are provided at the third opening 29. Figure 2 As shown, each louver 30 is composed of a plate body extending in the left-right direction inside the third opening 29, and is formed with a predetermined interval in the up-down direction. Figure 4 As shown, each louver 30 is inclined downward from the inside to the outside of the housing 20.

[0035] like Figure 2 , 4 As shown in FIG. 1 , the third opening portion 29 has a plurality of louver openings 29a formed by partitioning the louvers 30. In the present embodiment, there are eight louver openings 29a. The number of louver openings 29a is not limited to eight. Figure 4 As shown, the air F whose odor has been reduced by the deodorizing device 40 is discharged obliquely downward from each louver opening 29a along each louver 30.

[0036] In addition, when someone cleans, the housing 20 may be wiped with a wet cloth, or water may splash onto the housing 20 due to a shower, etc. In such a case, water may intrude from the louver opening 29a. However, since the louver 30 is inclined upward from the outside of the housing 20 toward the inside, it is difficult for water to intrude into the inside of the housing 20.

[0037] like Figure 4 As shown, the deodorizing device 40 is disposed inside the housing 20. The deodorizing device 40 includes: a first suction opening 33 for sucking air in the toilet bowl 2; and a second exhaust opening 34 for exhausting the sucked air. When mounted inside the housing 20, the first suction opening 33 is connected to the first opening 28, and the second exhaust opening 34 is connected to the third opening 29. In this connection, for example, a seal is interposed between the first suction opening 33 and the first opening 28 and between the second exhaust opening 34 and the third opening 29, thereby suppressing air leakage. In addition, the first suction opening 33 may be formed integrally with the first opening 28, or the first suction opening may be formed so as to extend to the lower panel of the shell and function as the first opening. Thus, the first suction opening functions integrally with the first opening or through the first suction opening in a manner that can suck air outside the shell. Similarly, the second exhaust opening 34 and the third opening 29 may be formed integrally, or the second exhaust opening may be formed to extend to the rear panel of the housing and function as the third opening. Thus, the second exhaust opening and the third opening may be formed integrally or the second exhaust opening may function in a manner such that the air sucked through the first opening and the second opening can be discharged to the outside of the housing.

[0038] In addition, the deodorizing device 40 deodorizes the sucked air and discharges it from the third opening 29. Specifically, the deodorizing device 40 sucks the air F1 in the toilet 2 and the air F2 in the shell 20. Then, the deodorizing device 40 reduces the odor components of feces or urine contained in the sucked air, and then discharges the deodorized air F to the outside from the third opening 29 (louver opening 29a) of the shell 20. Similarly, the moisture contained in the sucked air in the toilet device 10 is also discharged to the outside from the third opening 29 (louver opening 29a) of the shell 20. In addition, the deodorizing device 40 has a first deodorizing path portion 41, a fan 42, a second deodorizing path portion 43, and a deodorizing medium 48.

[0039] like Figure 3 As shown, the control unit 15 is provided inside the shell 20. If the seat detection sensor 13 detects that the user is seated, the control unit 15 sends a command to increase the temperature of the seat surface of the toilet seat 12 to a toilet seat heating unit (not shown) that controls the temperature of the toilet seat surface of the toilet seat 12, and can issue an operation command to each unit built into the shell 20.

[0040] like Figure 4 As shown, the fan 42 is located inside the shell 20, and is arranged on the downstream side of the first deodorization path section 41 and the upstream side of the second deodorization path section 43. The fan 42 is a suction fan for sucking air in the toilet 2, and in this embodiment, it is a Sirocco fan. The fan 42 is arranged on the upper side of the downstream side of the first deodorization path section 41, and is connected to the second suction opening section 52 formed on the upper side of the downstream side of the first deodorization path section 41, and sucks air from the bottom to the top. In addition, the fan 42 is arranged in front of the upstream end of the second deodorization path section 43, and is connected to the first exhaust opening section 53 formed in front of the upstream side of the second deodorization path section 43, and the sucked air is discharged to the rear. In addition, the fan 42 can also use an axial flow fan. By driving the fan 42, the air F1 containing odor inside the toilet 2 and the air F2 containing moisture in the toilet flushing device 10 are sucked from the first deodorization path section 41 to the second deodorization path section 43.

[0041] In addition, the control unit 15 can send an instruction to the fan 42 in such a manner that the fan 42 is driven at a specified speed at a pre-specified time. For example, the fan 42 can be instructed to rotate at a specified speed within a first time from when the user leaves the toilet seat 12, and to rotate at a speed less than the specified speed from the first time until a second time. The first time is, for example, 2 minutes, and the second time is, for example, longer than the first time, 30 minutes. In addition, the specified speed in the first time is, for example, 3700 rpm, and the speed less than the specified speed in the second time is, for example, 1900 rpm. The drive control of the fan 42 performed by the control unit 15 will be described in detail later.

[0042] The first deodorizing path 41, the fan 42, and the second deodorizing path 43 communicate with each other between the first opening 28 and the third opening 29. The first deodorizing path 41 is a passage through which the air F1 sucked from the first opening 28 by the fan 42 flows toward the fan 42. Figure 3 , 4 As shown, on the upper surface of the first deodorization path portion 41, there are a second opening portion 31 and a reinforcing rib 50 that communicate the interior of the shell 20 with the interior of the first deodorization path portion 41. Therefore, the first deodorization path portion 41 not only sucks air from the first opening portion 28, but also sucks air from the second opening portion 31. The second deodorization path portion 43 becomes a passage for the air discharged from the fan 42 to flow toward the third opening portion 29. The air F1 containing odor components in the toilet 2 sucked by the fan 42 has the odor components reduced by the deodorization medium 48 provided in the middle of the second deodorization path portion 43, and the deodorized air F is discharged from the third opening portion 29. In addition, the air F2 containing moisture in the toilet device 10 sucked by the fan 42 is also discharged from the third opening portion 29.

[0043] like Figure 3 , 4 As shown, in this embodiment, the second opening 31 is formed on the upper surface of the first deodorizing path 41. Furthermore, as required, the second opening 31 may also be formed on the side of the first deodorizing path 41. The opening area S1 of the second opening 31 is smaller than the opening area S2 of the first opening 28. For the opening area S2, it is preferred that the opening area S1 is about 1 / 20, for example, the opening area S1 is 60 mm 2 (square millimeters), the opening area S2 is 1200mm 2 (square millimeters).

[0044] like Figure 6As shown, the fourth opening 32 enables air to circulate between the inside of the shell 20 and the outside of the shell 20. In this embodiment, the fourth opening 32 is formed on the left side of the lower panel 25. When the air pressure inside the shell 20 changes, the air F3 outside the shell 20 flows in through the fourth opening 32, or the air inside the toilet device 10 flows out, thereby preventing the air pressure inside the shell 20 from being constant.

[0045] like Figure 5 As shown, a gap 44 is formed on the inner side of the toilet 2 on the shell 20, which connects the inside and the outside of the shell 20. When there is a gap 44 on the shell 20, if the inside of the shell 20 is under negative pressure, it is possible that moisture can easily flow into the shell 20 from the gap 44. The fourth opening 32 reduces the air pressure difference between the inside and the outside of the shell 20, thereby suppressing moisture from flowing into the shell 20. Since a water seal is formed inside the toilet 2, especially when there is a gap on the inner side of the toilet 2, if the inside of the shell 20 is under negative pressure, it is possible that moisture can easily flow into the shell 20 from the gap 44.

[0046] like Figure 6 As shown, the filter 45 includes: a panel 47 having a size that can be embedded in the fourth opening portion 32 and having a thickness that allows air to flow through the fourth opening portion 32; and a mesh 46 that is provided on the panel 47 and captures dirt and dust in the air. By embedding the filter 45 in the fourth opening portion 32, it is possible to suppress the dirt and dust contained in the air F3 flowing through the fourth opening portion 32 from entering the interior of the housing 20.

[0047] like Figure 3 , 7 As shown, the reinforcing rib 50 serves as a standing wall to prevent dew from being sucked into the second opening 31 from a location where dew condensation is difficult to form inside the housing 20 (for example, near a unit that heats the air inside the housing 20 such as the control unit 15 ).

[0048] Fig. 9 It is a top view illustrating the air flow in the case. like Figure 3 , 7 As shown in FIG. 9 , in this embodiment, the reinforcing rib 50 is formed on the upper surface of the first deodorizing path portion 41. When viewed from above, the reinforcing rib 50 is provided between the control portion 15 side in the left-right direction and the second opening portion 31 in a manner to suppress the suction of air from the direction connecting the center of the control portion 15 and the center of the second opening portion 31 to the second opening portion 31. Fig. 9 As shown, the reinforcing rib 50 is provided on the right side of the second opening 31. In addition, the reinforcing rib 50 protrudes at a height that does not contact the upper surface 27 of the housing 20 and is formed in an L-shape when viewed from above. As a result, the opening 60 between the right side of the second opening 31 and the fan 42 is smaller due to the reinforcing rib 50.

[0049] The reinforcing rib 50 prevents air from being sucked into the second opening 31 from a predetermined direction. The predetermined direction may be, for example, the inlet 57 of the nozzle 55 for cleaning the private part and the gap 44. Fig. 9 As shown by the arrow in , when the second opening 31 sucks the air F2 inside the shell 20, the reinforcing rib 50 makes it easy to suck the air on the left rear side inside the shell 20. Thus, the reinforcing rib 50, for example, inhibits the air with more moisture in the toilet 2 from intruding into the shell 20 from the inlet 57 and the gap 44 of the nozzle 55 for local washing. In addition, as long as it is inside the toilet device 10, the reinforcing rib 50 can also be formed in a part other than the channel of the first deodorization path part 41. In addition, as needed, the reinforcing rib 50 can also be formed in other shapes, such as a U-shape when viewed from above.

[0050] The reinforcing rib 50 suppresses the suction of air from the inside of the shell 20, for example, from a part where condensation is difficult, and is formed so as to preferentially suck air from a part where condensation is easy to occur over a part where condensation is difficult to occur. Parts where condensation is difficult to occur include, for example, the control unit 15 and the cleaning unit (not shown), units that generate heat as they work, and parts where these units exist. In addition, a part where condensation is easy to occur is, for example, the remote control light receiving unit 51 (see FIG. 1 ) that receives signals from the remote control and is provided on the left rear side of the shell 20. Figure 8 ) is a part that is not adjacent to a unit that generates heat. The reinforcing rib 50 can effectively generate air flow in a part that is prone to condensation. Thus, the toilet device 10 can suppress condensation on electronic parts such as the remote control light receiving part 51.

[0051] Fig.10 It is a timing chart showing the detection state of the human detection sensor and the driving state of the suction fan. Executed by the control unit 15 Fig.10 The drive control process of the fan 42 is shown.

[0052] At time t0, the seat detection sensor 13 (human body detection sensor) is turned on (sitting). When the control unit 15 receives the seat signal sent from the seat detection sensor 13, it sends a first drive signal to the fan 42. When the fan 42 receives the first drive signal, it starts driving at a rotation speed N1 (for example, 3700 rpm).

[0053] Thus, the odor components of the user's feces or urine can be reduced by the deodorizing device 40. In addition, the humidity in the toilet 2 increases due to the user sitting on the toilet seat 12. When the user sits on the toilet seat 12, the toilet device 10 starts driving the fan 42, thereby allowing the air in the shell 20 to circulate smoothly, thereby suppressing the increase in humidity in the shell 20.

[0054] At time t1, the seat detection sensor 13 (human body detection sensor) is turned off (off) (leave the seat). When the control unit 15 receives the seat leaving signal sent from the seat detection sensor 13, it measures (times) the first time. The first time is several seconds to several minutes (for example, 2 minutes) and is stored in advance in the storage unit of the control unit 15.

[0055] At time t2 after the first time has passed from time t1, the fan 42 is driven at a rotation speed N2 (for example, 1900 rpm). That is, when the first time has passed since the user left the toilet seat 12, the control unit 15 sends a second drive signal to the fan 42. If the fan 42 receives the second drive signal, the rotation speed is reduced from the rotation speed N1 to the rotation speed N2. In addition, the control unit 15 starts measuring (timing) the second time from time t2. The second time is set to a longer time than the first time and is pre-stored in the storage unit of the control unit 15. The second time is several minutes to tens of minutes (for example, 30 minutes).

[0056] Furthermore, the time from time t1 to t2 is 0 minutes to several minutes, and the rotation speed can also be reduced from the rotation speed N1 to the rotation speed N2 while the user leaves the toilet seat 12. That is, the first time can also be not set. When the seat detection sensor 13 (human body detection sensor) detects a human body (time t0), the control unit 15 rotates the fan 42 at a specified rotation speed (rotation speed N1). Thereafter, when the seat detection sensor 13 does not detect a human body (time t1), the control unit 15 rotates the fan 42 at a rotation speed N2 that is less than the specified rotation speed until a specified time has passed since the human body was not detected (from time t1 to time t3). The specified time is, for example, 30 minutes.

[0057] Thus, after the user has finished using the restroom, even when other users frequently enter the restroom, it is possible to suppress discomfort caused by the driving sound of the fan 42 and suppress condensation inside the housing 20 .

[0058] When the user uses the toilet device 10, the humidity in the toilet bowl 2 increases due to excrement or the user's body temperature. In addition, the nozzle 55 for local washing that spits hot water to the user's local area (see Fig. 9 ) may carry moisture, so if the nozzle 55 is stored in the shell 20, the humidity in the shell 20 may increase.

[0059] Therefore, even after the user leaves the toilet seat 12, the fan 42 continues to be driven. In the first time after the user leaves the toilet seat 12, the rotation speed of the fan 42 can be increased to efficiently perform deodorization. In the second time after the first time, the fan 42 is driven at a rotation speed N2 that is smaller than the predetermined rotation speed (rotation speed N1) in the first time.

[0060] Thus, the driving sound of the fan 42 in the second time can be made smaller than the driving sound of the fan 42 in the first time. Therefore, when moisture is sucked in the second time, even if there is a user in the toilet equipped with the toilet device 10 or another user enters the toilet after using the toilet, the discomfort caused by the driving sound of the fan 42 can be suppressed, and condensation inside the housing 20 can be suppressed.

[0061] Then, at time t3 after the second time from time t2, the control unit 15 stops driving the fan 42. As a result, the toilet device 10 can efficiently deodorize and suppress condensation in the housing 20. In addition, during the period from time t2 to time t3 (the second time), when the human body detection sensor (seat detection sensor 13) detects a user, the rotation speed N2 of the fan 42 is changed to the rotation speed N1, and the control process starts from time t0.

[0062] According to the toilet device 10 involved in one embodiment of the present invention, the opening area of ​​the second opening portion 31 is smaller than the first opening portion 28. Therefore, when the fan 42 is driven, the amount of air sucked from the second opening portion 31 can be made smaller than the amount of air sucked from the first opening portion 28. Therefore, by providing the second opening portion 31 in the deodorizing device 40, condensation of moisture from the inside of the housing 20 can be suppressed, and at the same time, the reduction in the suction performance at the first opening portion 28 can be suppressed.

[0063] In addition, according to the toilet device 10 involved in one embodiment of the present invention, the fan 42 is rotated at a specified speed from the time when the user leaves the toilet seat 12 until the first time has passed, and is rotated at a speed lower than the specified speed from the time when the first time has passed until the second time has passed. As a result, the driving sound of the fan 42 during the second time can be made smaller than the driving sound of the fan 42 during the first time. Therefore, when moisture is attracted during the second time, even if there is a user in the restroom where the toilet device 10 is installed or another user replaces the user who enters the restroom after use, the discomfort caused by the driving sound of the fan 42 can be suppressed, and condensation inside the shell 20 can be suppressed.

[0064] Furthermore, if the fan 42 being driven as a countermeasure against condensation is stopped using a remote controller, for example, condensation is more likely to occur inside the housing 20. Here, by reducing the discomfort described above, the possibility of stopping the fan 42 being driven using a remote controller can be reduced.

[0065] In addition, according to the toilet device 10 involved in one embodiment of the present invention, the shell 20 further includes a fourth opening 32, which allows air to circulate between the outside of the shell 20 and the inside of the shell 20. As a result, the air inside the shell 20 easily flows out and the air outside the shell 20 easily flows in, and the air pressure difference between the inside and outside of the shell 20 can be reduced. Since there is a gap 44 connecting the inside and outside of the shell 20 on the shell 20, for example, when the inside of the shell 20 is under negative pressure due to air suction from the second opening 31, although moisture may easily flow into the shell 20 from the gap 44, by reducing the air pressure difference between the inside and outside of the shell 20, it is possible to suppress moisture from flowing into the shell 20. In addition, since the fourth opening 32 connects the outside of the toilet 2 and the inside of the shell 20, it is possible to suppress moisture from flowing into the shell 20 from the inside of the toilet 2 through the fourth opening 32 compared to the case where the inside of the toilet 2 and the inside of the shell 20 are connected.

[0066] In addition, the toilet device 10 according to one embodiment of the present invention is provided with the filter 45 having the mesh 46. Therefore, even when the inside of the housing 20 is under negative pressure due to air being sucked from the second opening 31, dirt and dust can be prevented from entering the inside of the housing 20 through the fourth opening 32.

[0067] In addition, according to the toilet flushing device 10 involved in one embodiment of the present invention, the deodorizing device 40 has a reinforcing rib 50, which suppresses the suction of air from a specified direction to the second opening portion 31. Thus, the reinforcing rib 50 suppresses the suction from the specified direction to the second opening portion 31, and can preferentially attract air from directions other than the specified direction. The suction of air from the direction of the second opening portion 31 and the portion in the connecting shell 20 where condensation is difficult to form is suppressed, thereby preferentially attracting moisture from the portion in the shell 20 where condensation is easy to form. Thus, condensation in the shell 20 can be suppressed, and at the same time, it is possible to suppress the restriction on the layout of parts in the shell 20 such as placing electronic parts only in the portion in the shell where condensation is difficult to form or encapsulating electronic parts.

[0068] Fig.11 1 is a timing chart showing the detection state of the human body detection sensor and the driving state of the suction fan of the toilet device according to the modified example. In the above-mentioned embodiment, the case where the rotation speed (output) of the fan 42 is changed in two stages of the first time and the second time is described as an example. However, the present invention is not limited to this, and for example Fig.11 As in the modified example shown, the driving of the fan 42 may also be controlled in three stages.

[0069] Specifically, at time t0, the seat detection sensor 13 (human body detection sensor) is turned on (on) (seated). When the control unit 15 receives the seat signal sent from the seat detection sensor 13, it sends a first drive signal to the fan 42. When the fan 42 receives the first drive signal, it starts driving at a rotation speed N1 (for example, 3700 rpm).

[0070] Thus, the odor components of the user's feces or urine can be reduced by the deodorizing device 40. In addition, the humidity in the toilet 2 increases due to the user sitting on the toilet seat 12. When the user sits on the toilet seat 12, the toilet device 10 starts driving the fan 42, thereby allowing the air in the shell 20 to circulate smoothly, thereby suppressing the increase in humidity in the shell 20.

[0071] At time t11, the seat detection sensor 13 (human body detection sensor) is turned off (off) (leave the seat). When the control unit 15 receives the seat leaving signal sent from the seat detection sensor 13, it measures (times) the first time. The first time is several seconds to several minutes (for example, 10 seconds) and is stored in advance in the storage unit of the control unit 15.

[0072] At time t12 after the first time has passed from time t11, the fan 42 is driven at a rotation speed N3 (for example, 6300 rpm). The rotation speed N3 is, for example, the maximum output value of the fan 42. That is, when the first time has passed since the user left the toilet seat 12, the control unit 15 sends a maximum drive signal to the fan 42. If the fan 42 receives the maximum drive signal, the rotation speed is increased from the rotation speed N1 to the rotation speed N3. In addition, the rotation speed N3 only needs to be greater than the rotation speed N1, and may not be the maximum output value of the fan 42.

[0073] In addition, the control unit 15 starts measuring (timing) the second time from time t12. The second time is set to a longer time than the first time and is pre-stored in the storage unit of the control unit 15. The second time is from tens of seconds to several minutes (for example, 60 seconds). In addition, the second time can also be set to a shorter time than the first time.

[0074] For example, the second time is set assuming that the next user uses the toilet device 10 after the user leaves the toilet device 10. That is, the second time is the user replacement period. During the second time when there is no user in the toilet, the toilet device 10 increases the output of the fan 42, thereby absorbing odor and moisture as much as possible.

[0075] At time t13 after the second time has passed from time t12, the fan 42 is driven at a rotation speed N2 (for example, 1900 rpm). That is, when the second time has passed, the control unit 15 sends a second drive signal to the fan 42. If the fan 42 receives the second drive signal, the rotation speed is reduced from the rotation speed N3 to the rotation speed N2. In addition, the control unit 15 starts measuring (timing) the third time from time t13. The third time is set to a longer time than the first time and the second time, and is pre-stored in the storage unit of the control unit 15. The third time is several minutes to tens of minutes (for example, 30 minutes).

[0076] Then, at time t14 after a third time has passed from time t13, the control unit 15 stops driving the fan 42. Thus, the toilet device 10 can efficiently deodorize while suppressing condensation in the housing 20. In the modified example, the driving of the fan 42 is controlled based on the assumption that there is a user near the toilet device 10. Thus, the toilet device 10 is a toilet device that takes into account the deodorizing performance and the suppression of condensation on the electronic components in the housing 20, while taking into account the noise caused by the driving sound of the fan 42.

[0077] Furthermore, during the period from time t12 to time t14 (second time and third time), when the human body detection sensor (seating detection sensor 13) detects a user, the rotation speeds N3 and N2 of the fan 42 are changed to the rotation speed N1, and the control process starts from time t0.

[0078] According to the toilet flushing device 10 of the modified example, the second time period is shorter than the third time period. Thus, in the second time period when no one is in the toilet after leaving the seat, odor and moisture can be sucked as much as possible. In addition, the fan 42 is prevented from being driven at a rotation speed greater than a predetermined speed for a long time, and the driving sound can be further prevented from causing discomfort to people.

[0079] In the above-mentioned embodiment and modification, the case where the rotation speed of the fan 42 is changed in two or three stages is described as an example. However, the present invention is not limited to this, and the rotation speed of the fan 42 may be changed in four or more stages, for example.

[0080] The embodiment may further include the following configurations.

[0081] Composition 1 A toilet flushing device, comprising: a shell; and a deodorizing device, arranged inside the shell, characterized in that: The deodorizing device has: a first opening portion that can draw air outside the housing; a second opening capable of sucking air from inside the shell; a third opening portion, capable of discharging the air sucked through the first opening portion and the second opening portion to the outside of the shell; a suction fan for sucking air from outside and inside the housing through the first opening and the second opening; a first deodorizing path portion connecting the first opening portion, the second opening portion, and the suction fan; and a second deodorizing path portion, communicating with the suction fan and the third opening portion, The second opening has an opening area smaller than that of the first opening. Composition 2 The toilet flushing device described in configuration 1 is characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to The vehicle rotates at a specified rotation speed until a first time has passed since the state in which the human body detection sensor detects a human body changes to a state in which the human body is not detected, and rotates at a rotation speed lower than the specified rotation speed until a second time has passed after the first time has passed. Composition 3 The toilet flushing device described in configuration 1 is characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to From the time when the state in which the human body detection sensor detects a human body changes to the state in which the human body is not detected, the vehicle rotates at a specified rotation speed until a first time has passed. From the time when the first time has passed, the vehicle rotates at a rotation speed greater than the specified rotation speed until a second time has passed. From the time when the second time has passed, the vehicle rotates at a rotation speed less than the specified rotation speed until a third time has passed. Composition 4 The toilet device described in configuration 3 is characterized in that the second time period is shorter than the third time period. Composition 5 The toilet device according to any one of configurations 1 to 4 is characterized in that the shell further includes a fourth opening that allows air to flow between the outside of the shell and the inside of the shell. Composition 6 The toilet device according to configuration 5 is characterized in that a filter having a mesh is provided at the fourth opening. Composition 7 The toilet device according to any one of configurations 1 to 6 is characterized in that the deodorizing device further includes a reinforcing rib that suppresses suction of air from a predetermined direction toward the second opening. Composition 8 The toilet flushing device described in configuration 1 is characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to When the human body detection sensor detects a human body, the sensor rotates at a specified speed. When the human body detection sensor does not detect a human body, the motor rotates at a rotation speed lower than the predetermined rotation speed until a predetermined time has passed since the human body is not detected.

[0082] An embodiment of the present invention has been described above. However, the present invention is not limited to the above description. With regard to the aforementioned embodiment, as long as it has the characteristics of the present invention, the invention of appropriate design changes added by those skilled in the art is also included in the scope of the present invention. For example, the shape, size, material, configuration, setting method, etc. of each element of the toilet flushing device are not limited to the exemplified contents, but can be appropriately changed. In addition, as long as it is technically feasible, the various elements of the aforementioned embodiment can be combined, and as long as it includes the characteristics of the present invention, the technology of combining these is also included in the scope of the present invention.

Claims

1. A toilet flushing device comprising: a shell; and a deodorizing device, arranged inside the shell, characterized in that: The deodorizing device has: a first opening portion that can draw air outside the housing; a second opening capable of sucking air from inside the shell; a third opening portion, capable of discharging the air sucked through the first opening portion and the second opening portion to the outside of the shell; a suction fan for sucking air from outside and inside the housing through the first opening and the second opening; a first deodorizing path portion connecting the first opening portion, the second opening portion, and the suction fan; and a second deodorizing path portion, communicating with the suction fan and the third opening portion, The second opening has an opening area smaller than that of the first opening.

2. The toilet flushing device according to claim 1, characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to The vehicle rotates at a specified rotation speed until a first time has passed since the state in which the human body detection sensor detects a human body changes to a state in which the human body is not detected, and rotates at a rotation speed lower than the specified rotation speed until a second time has passed after the first time has passed.

3. The toilet flushing device according to claim 1, characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to From the time when the state in which the human body detection sensor detects a human body changes to the state in which the human body is not detected, the vehicle rotates at a specified rotation speed until a first time has passed. From the time when the first time has passed, the vehicle rotates at a rotation speed greater than the specified rotation speed until a second time has passed. From the time when the second time has passed, the vehicle rotates at a rotation speed less than the specified rotation speed until a third time has passed.

4. The toilet flushing device according to claim 3, characterized in that: The second time period is shorter than the third time period.

5. The toilet flushing device according to any one of claims 1 to 4, characterized in that: The case further includes a fourth opening that allows air to flow between the outside of the case and the inside of the case.

6. The toilet flushing device according to claim 5, characterized in that: A filter having a mesh is provided at the fourth opening.

7. The toilet flushing device according to any one of claims 1 to 4, characterized in that: The deodorizing device further includes a reinforcing rib that suppresses suction of air from a predetermined direction toward the second opening.

8. The toilet flushing device according to claim 1, characterized in that: It also has a human body detection sensor for detecting human bodies. The suction fan is used to When the human body detection sensor detects a human body, the sensor rotates at a specified speed. When the human body detection sensor does not detect a human body, the motor rotates at a rotation speed lower than the predetermined rotation speed until a predetermined time has passed since the human body is not detected.

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