Toilet facilities

Abstract

[Problem] This invention provides a toilet apparatus that can suppress the reduction in air suction caused by the opening for drawing air from the toilet bowl due to moisture in the suction shell of the deodorizing device. [Solution] A toilet apparatus includes: a shell; and a deodorizing device disposed inside the shell, wherein the deodorizing device has: a first opening for drawing air from outside the shell; a second opening for drawing air from inside the shell; a third opening for discharging air drawn through the first and second openings to the outside of the shell; a suction fan for drawing air from outside and inside the shell from the first and second openings; a first deodorizing path connecting the first and second openings and the suction fan; and a second deodorizing path connecting the suction fan and the third opening, wherein the opening area of ​​the second opening is smaller than that of the first opening.

Description

Toilet device An aspect of the present invention relates to a toilet device. If corrosion occurs on electronic components or the like inside the housing of the toilet device, there may be a malfunction where the toilet device operates unexpectedly or does not operate. As one of the main causes of this corrosion, condensation due to moisture can be considered. To suppress condensation due to such moisture, there is a known toilet device in which an opening for sucking air inside the housing is provided in a deodorizing device for sucking air inside the toilet bowl, and moisture inside the housing is sucked from this opening (for example, Patent Documents 1 and 2). Patent Documents Patent Document 1: Japanese Unexamined Patent Application Publication No. 2002-266406 Patent Document 2: Japanese Unexamined Patent Application Publication No. 2007-092396 [ Technical means for solving the problem ] In the above-mentioned toilet device, by providing an opening for sucking air inside the housing of the deodorizing device, it is possible to reduce the air suction performance of the opening for sucking air inside the toilet bowl. If the suction performance decreases, it may not be possible to obtain sufficient deodorizing performance. The present invention is for solving the above problems and aims to provide a toilet device that can suppress a decrease in the air suction performance at the opening for sucking air inside the toilet bowl due to the opening for moisture inside the housing of the deodorizing device. A toilet device according to an aspect of an embodiment of the present invention includes: a housing; and a deodorizing device provided inside the housing, characterized in that the deodorizing device has: a first opening for sucking air outside the housing; a second opening for sucking air inside the housing; a third opening for discharging air sucked through the first opening and the second opening to the outside of the housing; a suction fan for sucking air outside and inside the housing from the first opening and the second opening; a first deodorizing path portion communicating the first opening, the second opening, and the suction fan; and a second deodorizing path portion communicating the suction fan and the third opening, and the opening area of the second opening is smaller than that of the first opening. According to the toilet device according to an aspect of the embodiment, the opening area of the second opening is smaller than that of the first opening. Therefore, when the suction fan is driven, the amount of air sucked from the second opening can be made smaller than the amount of air sucked from the first opening. Thus, by providing the second opening in the deodorizing device, it is possible to suppress a decrease in the suction performance at the first opening. In the toilet device according to an aspect of the embodiment, a human body detection sensor for detecting a human body is further provided, and the suction fan is rotated at a predetermined speed from the state where the human body detection sensor detects a human body until the state where no human body is detected, and from after the first time elapses until the second time elapses, it is rotated at a speed less than the predetermined speed. According to the toilet device according to an aspect of the embodiment, the suction fan is rotated at a predetermined speed from the state where the human body detection sensor detects a human body until the state where no human body is detected, and from after the first time elapses until the second time elapses, it is rotated at a speed less than the predetermined speed. Thus, the driving sound of the suction fan in the second time can be made smaller than the driving sound of the suction fan in the first time. Therefore, when sucking moisture in the second time, even when there is a user in the toilet where the toilet device is installed or when there is a replacement user entering the toilet after the user has used it, it is possible to suppress the unpleasant feeling caused by the driving sound of the suction fan, and at the same time, it is possible to suppress the condensation inside the housing. In the toilet device according to an aspect of the embodiment, a human body detection sensor for detecting a human body is further provided, and the suction fan is rotated at a predetermined speed from the state where the human body detection sensor detects a human body until the state where no human body is detected, and from after the first time elapses until the second time elapses, it is rotated at a speed greater than the predetermined speed, and from after the second time elapses until the third time elapses, it is rotated at a speed less than the predetermined speed. When there is a person staying in the toilet after the toilet cleaning is completed or when there is a person who has replaced and entered the toilet after the toilet cleaning of another person has been completed, 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 where the person sitting will not feel discomfort, it is preferably to suck odors and moisture as much as possible during the period when there is no one in the toilet after getting up. Thus, according to the toilet device according to an aspect of the embodiment, the driving sound of the suction fan is suppressed from giving discomfort to people, and at the same time, the suction performance of the suction fan is improved, thereby further suppressing the condensation inside the housing. In the toilet device according to an aspect of the embodiment, the period of the second time is shorter than the period of the third time. According to the toilet device according to an aspect of the embodiment, the period during which the rotation speed is greater than the predetermined speed is shorter than the period during which the rotation speed is less than the predetermined speed, thereby being able to suppress the suction fan from being driven to rotate at a speed greater than the predetermined speed for a long time, and further suppressing the driving sound from giving discomfort to people. In the toilet device according to one aspect of the embodiment, the housing further includes a fourth opening that allows air to flow between the outside and the inside of the housing. According to the toilet device according to one aspect of the embodiment, the housing further includes a fourth opening that allows air to flow between the outside and the inside of the housing. Thus, the air inside the housing can easily flow out and the air outside the housing can easily flow in, reducing the air pressure difference between the inside and the outside of the housing. For example, if there is a gap connecting the inside and the outside of the housing and the inside of the housing is under negative pressure due to the suction of air from the second opening, although moisture may easily flow into the housing through the gap, by reducing the air pressure difference between the inside and the outside of the housing, the inflow of moisture into the housing can be suppressed. In the toilet device according to one aspect of the embodiment, a filter with meshes is provided at the fourth opening. According to the toilet device according to one aspect of the embodiment, a filter with meshes is provided at the fourth opening. Therefore, for example, even when the inside of the housing is under negative pressure, dirt and dust can be prevented from entering the housing through the fourth opening. In the toilet device according to one aspect of the embodiment, the deodorizing device further has ribs that inhibit the suction of air from a predetermined direction toward the second opening. According to the toilet device according to one aspect of the embodiment, the deodorizing device has ribs that inhibit the suction of air from a predetermined direction toward the second opening. Thus, the ribs inhibit the suction from a predetermined direction, and it is desirable to suck air from directions other than the predetermined direction. For example, by inhibiting the suction of air from the direction connecting the non-condensing part inside the housing and the second opening, it is desirable to suck the moisture at the easily condensing part inside the housing. As a result, condensation inside the housing can be suppressed, and at the same time, restrictions on the layout of components inside the housing, such as only being able to place electronic components at non-condensing parts inside the housing, can be suppressed. And the easily condensing part inside the housing is, for example, a part that is easy to cool and has no heat-generating unit around it, and the non-condensing part inside the housing is, for example, a part that has a heat-generating unit around it. In the toilet device according to one aspect of the embodiment, a human body detection sensor for detecting a human body is further provided, and the suction fan rotates at a predetermined speed when the human body detection sensor detects a human body, and rotates at a speed lower than the predetermined speed from the time when the human body detection sensor does not detect a human body until a predetermined time has elapsed. According to the toilet device according to one aspect of the embodiment, even when other users enter the toilet more frequently after the user has finished using it, it is possible to suppress the discomfort caused by the driving sound of the suction fan and at the same time suppress condensation inside the housing. [Effects of the Invention] According to one aspect of the embodiment, a toilet device can be provided that can suppress a decrease in the air suction performance of an opening that sucks air in the toilet due to an opening that sucks moisture in the suction housing. Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In each of the drawings, the same reference numerals are assigned to the same components, and detailed descriptions are appropriately omitted. FIG. 1 is a side view of a toilet unit including a toilet device according to an embodiment of the present invention. As shown in FIG. 1, the toilet unit 1 is installed in a washroom and includes a toilet 2 and a toilet device 10 installed on top of the toilet 2. The toilet device 10 has a toilet seat 12, a toilet lid 14, and a housing 20. The toilet seat 12 and the toilet lid 14 are respectively pivotally supported by the housing 20 so as to be openable and closable. In this application specification, with respect to the upper, lower, front, rear, right, and left directions as observed by a user sitting on the toilet seat 12 with the toilet lid 14 in the open state facing away, they are respectively referred to as "upper", "lower", "front", "rear", "right", and "left". The toilet device 10 is installed on the upper surface of the rear side of the toilet 2. The toilet device 10 can be integrally installed on the toilet 2 or detachably installed on the toilet 2. The toilet device 10 has: a housing 20 formed in a hollow box shape inside; and a deodorizing device 40 provided inside the housing 20 and having a function of reducing odors. In addition, inside the housing 20, there are optionally built-in: an opening / closing unit (not shown) that controls the opening / closing operation of the toilet lid 14 or the toilet seat 12; a washing unit (not shown) that washes a part of the human body; and a communication unit (not shown) that can communicate with an operation unit such as a remote controller, etc. The housing 20 pivotally supports the toilet seat 12 and the toilet lid 14 rotatably on the rear side. And, the toilet lid 14 can be provided on the toilet device 10 as needed, or may not be provided. A seat detection sensor 13 that detects a human body, that is, a seat detection sensor that detects whether a user is sitting or not, is provided on the toilet seat 12. The seat detection sensor 13 detects a state in which a human body is detected, that is, a state in which the user is sitting. In addition, the seat detection sensor 13 can also detect a state in which a human body is not detected, that is, a state in which the user is not sitting (a state of having left the seat). And, the part where the seat detection sensor is provided is not limited to the toilet seat, but can also be provided on the housing, for example. In addition, as the human body detection sensor, for example, an entrance detection sensor that detects entry into the washroom or a proximity detection sensor that detects proximity to the toilet device can be used instead of the seat detection sensor. FIG. 2 is a rear view showing the appearance of the toilet device according to an embodiment of the present invention. FIG. 3 is a top view showing the inside of the housing with the housing of the toilet device according to an embodiment of the present invention omitted. FIG. 4 is a cross-sectional view taken in the direction of arrow A-A in FIG. 3 without omitting the housing. FIG. 5 is a cross-sectional view taken in the direction of arrow B-B in FIG. 1. FIG. 6 is an enlarged view of the vicinity of arrow B1 in FIG. 5. FIG. 7 is a cross-sectional view taken in the direction of arrow C-C in FIG. 3 without omitting the housing. As shown in FIGS. 2 and 4, the housing 20 has: a side surface portion 21; a lower surface portion 26 that closes the lower end of the side surface portion 21; and an upper surface portion 27 that closes the upper end of the side surface portion 21. The side surface portion 21 has: a left side panel 22 and a right side panel 23 that face each other in the left-right direction; and a rear side panel 24 that connects the rear end sides of the left side panel 22 and the right side panel 23. In addition, the lower surface portion 26 has a lower side panel 25 that connects the left side panel 22, the right side panel 23, and the rear side panel 24. As shown in FIGS. 4 and 6, the lower side panel 25 has a first opening 28 and a fourth opening 32 that communicate the inside and the outside of the housing 20. As shown in FIG. 4, the rear side panel 24 has a third opening 29 that communicates the inside and the outside of the housing 20. Here, the first opening 28 is an opening that can suck the air outside the housing 20, and communicates with a first deodorizing path portion 41 of the deodorizing device 40 inside the housing 20, and is used for the deodorizing device 40 to suck 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 housing 20, and communicates with a second deodorizing path portion 43 of the deodorizing device 40 inside the housing 20, and is used for discharging the air F with the odor reduced by the deodorizing device 40. Moreover, the fourth opening 32 is an opening that enables the air to flow between the outside and the inside of the housing 20, and is used for adjusting the air pressure inside the housing 20. As shown in FIG. 3, in the present embodiment, the first opening 28 is formed on the left front side of the toilet device 10 and above the basin surface of the toilet 2. And if the first opening 28 can suck the air inside the toilet 2, it can also be formed at a changed position such as on the right side of the toilet device 10 as needed. As shown in FIG. 2, in the present embodiment, the third opening 29 is formed on the left side of the rear side panel 24. And as needed, the third opening 29 can also be formed on the left side panel 22 or the right side panel 23, etc. As shown in FIG. 6, in the present embodiment, the fourth opening 32 is formed on the left side of the toilet device 10 and communicates the outside of the toilet 2 with the inside of the housing 20. And as needed, the fourth opening 32 can also be formed on the right side of the toilet device 10 or outside the toilet 2 at the rear. A plurality of louvers 30 are provided in the third opening 29. As shown in FIG. 2, 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. In addition, as shown in FIG. 4, each louver 30 inclines downward from the inside of the housing 20 toward the outside. As shown in FIGS. 2 and 4, the third opening 29 has a plurality of louver openings 29a formed by being divided by the respective louvers 30. In the present embodiment, there are 8 louver openings 29a. And the louver openings 29a are not limited to 8. As shown in FIG. 4, 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. In addition, when someone is cleaning, sometimes a wet rag is used to wipe the housing 20, or sometimes water splashes onto the housing 20 due to a shower or the like. In such a case, water may intrude from the louver opening 29a. However, since the louver 30 inclines 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. As shown in FIG. 4, the deodorizing device 40 is provided inside the housing 20. The deodorizing device 40 has: a first suction opening 33 for sucking the air inside the toilet 2; and a second exhaust opening 34 for discharging the sucked air. When assembled 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 provided 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 and the first opening 28 may be integrally formed, or the first suction opening may be formed to extend to the lower side panel of the housing and function as the first opening. Thus, the first suction opening and the first opening function integrally or through the first suction opening to suck the air outside the housing. Similarly, the second exhaust opening 34 and the third opening 29 may be integrally formed, or the second exhaust opening may be formed to extend to the rear side panel of the housing and function as the third opening. Thus, the second exhaust opening and the third opening function integrally or through the second exhaust opening to be able to discharge the air sucked through the first opening and the second opening to the outside of the housing. In addition, the deodorizing device 40 deodorizes the inhaled 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 housing 20. After that, the deodorizing device 40 reduces the odor components such as 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 housing 20. Similarly, the moisture contained in the air in the toilet device 10 that has been sucked is also discharged to the outside from the third opening 29 (louver opening 29a) of the housing 20. Moreover, the deodorizing device 40 includes a first deodorizing path portion 41, a fan 42, a second deodorizing path portion 43, and a deodorizing catalyst 48. As shown in FIG. 3, the control unit 15 is provided inside the housing 20. If the seat detection sensor 13 detects the user's seating, the control unit 15 sends a command to raise 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 seat surface of the toilet seat 12, and can issue operation commands to each unit built inside the housing 20. As shown in FIG. 4, the fan 42 is located inside the housing 20, and is provided on the downstream side of the first deodorizing path portion 41 and the upstream side of the second deodorizing path portion 43. The fan 42 is an attracting fan for sucking the air in the toilet 2, and is a Sirocco fan in this embodiment. The fan 42 is provided on the upper surface on the downstream side of the first deodorizing path portion 41, communicates with the second suction opening 52 formed on the upper surface on the downstream side of the first deodorizing path portion 41, and sucks air from the bottom to the top. In addition, the fan 42 is provided in front of the upstream end of the second deodorizing path portion 43, communicates with the first exhaust opening 53 formed in front of the upstream side of the second deodorizing path portion 43, and discharges the sucked air backward. Moreover, the fan 42 can also use an axial flow fan. By driving the fan 42, the air F1 containing odor in the toilet 2 and the air F2 containing moisture in the toilet device 10 are sucked from the first deodorizing path portion 41 into the second deodorizing path portion 43. In addition, the control unit 15 can send a command to the fan 42 in such a way that it is driven at a specified rotational speed at a predetermined time. For example, a command can be sent to the fan 42 in such a way that it rotates at a predetermined rotational speed within the first time from when the user leaves the toilet seat 12, and rotates at a rotational speed less than the predetermined rotational speed from after the first time until after the second time. The first time is, for example, 2 minutes, and the second time is, for example, longer than the first time and is 30 minutes. In addition, the predetermined rotational speed in the first time is, for example, 3700 rpm, and the rotational speed less than the predetermined rotational 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. The first deodorization path portion 41, the fan 42, and the second deodorization path portion 43 communicate between the first opening 28 and the third opening 29. The first deodorization path portion 41 serves as a passage for the air F1 inhaled from the first opening 28 by the fan 42 to flow toward the fan 42. In addition, as shown in FIGS. 3 and 4, on the upper surface of the first deodorization path portion 41, there are a second opening 31 and ribs 50 that communicate the inside of the connection shell 20 with the inside of the first deodorization path portion 41. Therefore, the first deodorization path portion 41 can not only inhale air from the first opening 28 but also from the second opening 31. The second deodorization path portion 43 serves as a passage for the air discharged from the fan 42 to flow toward the third opening 29. The air F1 containing odor components in the toilet 2 inhaled by the fan 42 has its odor components reduced by the deodorization catalyst 48 provided in the middle of the second deodorization path portion 43, and the deodorized air F is discharged from the third opening 29. In addition, the air F2 containing moisture in the toilet device 10 inhaled by the fan 42 is also discharged from the third opening 29 in the same manner. As shown in FIGS. 3 and 4, in this embodiment, the second opening 31 is formed on the upper surface of the first deodorization path portion 41. And, if necessary, the second opening 31 can also be formed on the side surface of the first deodorization path portion 41. The opening area S1 of the second opening 31 is smaller than the opening area S2 of the first opening 28. Regarding the opening area S2, it is ideal that the opening area S1 is about 1 / 20, for example, the opening area S1 is 60 mm 2 (square millimeters), and the opening area S2 is 1200 mm 2 (square millimeters). As shown in FIG. 6, the fourth opening 32 enables the air inside and outside the shell 20 to flow through. In this embodiment, the fourth opening 32 is formed on the left side of the lower side panel 25. When the air pressure inside the shell 20 changes, through the fourth opening 32, the air F3 outside the shell 20 flows in, or the air inside the toilet device 10 flows out, thereby preventing the air pressure inside the shell 20 from becoming constant. As shown in FIG. 5, on the inner side of the toilet 2 on the shell 20, there is a gap 44 that communicates the inside and outside of the shell 20. When there is a gap 44 or the like on the shell 20, if the inside of the shell 20 is in a negative pressure state, it is possible for moisture to easily flow into the shell 20 from the gap 44 or the like. The fourth opening 32 reduces the air pressure difference between the inside and outside of the shell 20, thereby being able to prevent moisture from flowing into the shell 20. Since there is a water seal 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 in a negative pressure state, moisture can easily flow into the shell 20 from the gap 44 or the like. As shown in FIG. 6, the filter 45 has: a panel 47 having a size that can be embedded in the fourth opening 32 and having a thickness that allows air to flow through the fourth opening 32; and a mesh 46 disposed on the panel 47 to capture dirt and dust in the air. By embedding the filter 45 in the fourth opening 32, it is possible to prevent dirt and dust contained in the air F3 flowing through the fourth opening 32 from entering the interior of the housing 20. As shown in FIGS. 3 and 7, the rib 50 serves as a standing wall that prevents suction from a portion inside the housing 20 where condensation is unlikely to occur (for example, near a unit such as the control unit 15 that heats the air inside the housing 20) to the second opening 31. FIG. 9 is a plan view illustrating the air flow inside the housing. As shown in FIGS. 3, 7, and 9, in the present embodiment, the rib 50 is formed on the upper surface of the first deodorizing path portion 41. When viewed from above, the rib 50 is provided between the control unit 15 side in the left-right direction and the second opening 31 so as to suppress the suction of air from the direction connecting the center of the control unit 15 and the center of the second opening 31 to the second opening 31. As shown in FIG. 9, the rib 50 is provided on the right side of the second opening 31. In addition, the rib 50 protrudes at a height that does not contact the upper surface portion 27 of the housing 20 and is formed in an L-shape when viewed from above. As a result, the opening 60 between the rib 50 and the fan 42 on the right side of the second opening 31 is small. The rib 50 suppresses the suction of air from a predetermined direction to the second opening 31. The predetermined direction is, for example, the inlet / outlet 57 and the gap 44 of the nozzle 55 for local cleaning. As shown by the arrow in FIG. 9, when the second opening 31 sucks the air F2 inside the housing 20, the rib 50 makes it easier to suck the air on the left rear side inside the housing 20. Thus, the rib 50, for example, suppresses the intrusion of air with a large amount of moisture in the toilet 2 into the housing 20 from the inlet / outlet 57 and the gap 44 of the nozzle 55 for local cleaning. In addition, as long as it is inside the toilet device 10, the rib 50 can also be formed in a portion other than the passage of the first deodorizing path portion 41. Further, if necessary, the rib 50 can also be formed in other shapes, such as a U-shape when viewed from above. The rib 50 suppresses the suction of air from inside the housing 20, for example, from a portion where condensation is unlikely to occur, and is formed such that, preferably, air is sucked from a portion where condensation is likely to occur rather than from a portion where condensation is unlikely to occur. A portion where condensation is unlikely to occur is, for example, the control unit 15 and the cleaning unit (not shown), which are units that generate heat during operation and the portions where these units are located. In addition, a portion where condensation is likely to occur is, for example, the remote control light receiving unit 51 (see FIG. 8) that receives signals from the remote control and is provided on the left rear side inside the housing 20, which is a portion where there is no adjacent heat-generating unit. The rib 50 can effectively generate an air flow in a portion where condensation is likely to occur. Thus, the toilet device 10 can suppress condensation from occurring on electronic components such as the remote control light receiving unit 51. FIG. 10 is a time chart showing the detection state of the human body detection sensor and the driving state of the suction fan. The driving control process of the fan 42 shown in FIG. 10 is executed by the control unit 15. At time t0, the seating detection sensor 13 (human body detection sensor) becomes ON (seated). If the control unit 15 receives the seating signal sent from the seating detection sensor 13, it sends a first driving signal to the fan 42. If the fan 42 receives the first driving signal, it starts driving at a rotational speed N1 (for example, 3700 rpm). Thereby, the odor components resulting from the user's feces or urine can be reduced by the deodorizing device 40. In addition, the humidity inside the toilet 2 increases due to the user's seating on the toilet seat 12. When the user sits on the toilet seat 12, the toilet device 10 starts driving the fan 42, thereby enabling the air inside the housing 20 to circulate smoothly and suppressing the increase in humidity inside the housing 20. At time t1, the seating detection sensor 13 (human body detection sensor) becomes OFF (unseated). If the control unit 15 receives the unseating signal sent from the seating 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. At time t2 when the first time has elapsed since time t1, the fan 42 is driven at a rotational speed N2 (for example, 1900 rpm). That is, when the first time has elapsed since the user left the toilet seat 12, the control unit 15 sends a second driving signal to the fan 42. If the fan 42 receives the second driving signal, it reduces the rotational speed from rotational speed N1 to rotational speed N2. In addition, the control unit 15 starts measuring (timing) the second time from time t2. The second time is set to be longer than the first time and is stored in advance in the storage unit of the control unit 15. The second time is several minutes to several tens of minutes (for example, 30 minutes). And the time from time t1 to t2 is 0 minute to several minutes. It is also possible to reduce the rotational speed from rotational speed N1 to rotational speed N2 at the same time when the user leaves the toilet seat 12. That is, it is also possible not to set the first time. When the seating detection sensor 13 (human body detection sensor) detects a human body (time t0), the control unit 15 rotates the fan 42 at a predetermined rotational speed (rotational speed N1). After that, when the seating detection sensor 13 does not detect a human body (time t1), from the time when a human body is not detected until a predetermined time has elapsed (from time t1 to time t3), the control unit 15 rotates the fan 42 at a rotational speed N2 that is less than the predetermined rotational speed. The predetermined time is, for example, 30 minutes. Thereby, after the user has finished using, even when other users enter the toilet at a higher frequency, it is possible to suppress the discomfort caused by the driving sound of the fan 42 and at the same time suppress the condensation inside the housing 20. When the user has used the toilet device 10, the humidity inside the toilet 2 increases due to excrement or the user's body temperature, etc. In addition, the nozzle 55 for local washing that spits out hot water to the user's local area (refer to FIG. 9) may carry moisture. Therefore, if the nozzle 55 is stored in the housing 20, the humidity inside the housing 20 may increase. Then, even after the user leaves the toilet seat 12, the fan 42 continues to be driven. In the first moment after the user leaves the toilet seat 12, the rotation speed of the fan 42 can be increased to perform deodorization efficiently. In the second moment after the first moment has passed, the fan 42 is driven at a rotation speed N2 that is less than the predetermined rotation speed (rotation speed N1) in the first moment. Thereby, the driving sound of the fan 42 in the second moment can be made less than the driving sound of the fan 42 in the first moment. Therefore, when attracting moisture in the second moment, even when there is a user in the toilet where the toilet device 10 is installed or when another user enters the toilet after the user has finished using it, it is possible to suppress the discomfort caused by the driving sound of the fan 42 and at the same time suppress the condensation inside the housing 20. After that, at the moment t3 when the second moment has passed from the moment t2, the control unit 15 stops the driving of the fan 42. Thereby, the toilet device 10 can perform deodorization efficiently and at the same time suppress the condensation inside the housing 20. And, during the period from the moment t2 to the moment t3 (the second moment), when the human body detection sensor (the seating detection sensor 13) detects the user, the rotation speed N2 of the fan 42 is changed to the rotation speed N1, and it becomes the control process starting from the moment t0. According to the toilet device 10 of an embodiment of the present invention, the opening area of the second opening 31 is smaller than that of the first opening 28. Therefore, when the fan 42 is driven, the amount of air attracted from the second opening 31 can be made less than the amount of air attracted from the first opening 28. Thus, by providing the second opening 31 in the deodorizing device 40, it is possible to suppress the condensation due to the moisture inside the housing 20 and at the same time suppress the reduction of the attractiveness at the first opening 28. In addition, according to the toilet device 10 of an embodiment of the present invention, the fan 42 rotates at a predetermined rotation speed from when the user leaves the toilet seat 12 until the first moment has passed, and rotates at a rotation speed less than the predetermined rotation speed from when the first moment has passed until the second moment has passed. Thereby, the driving sound of the fan 42 in the second moment can be made less than the driving sound of the fan 42 in the first moment. Therefore, when attracting moisture in the second moment, even when there is a user in the toilet where the toilet device 10 is installed or when another user enters the toilet after the user has finished using it, it is possible to suppress the discomfort caused by the driving sound of the fan 42 and at the same time suppress the condensation inside the housing 20. Moreover, for example, if the fan 42 that is being driven as a dew condensation countermeasure is stopped using a remote controller or the like, the possibility of dew condensation occurring inside the housing 20 increases. Here, by reducing the above-mentioned discomfort, the possibility of stopping the above-mentioned positively driven fan 42 using a remote controller or the like can be reduced. In addition, in the toilet device 10 according to an embodiment of the present invention, the housing 20 further includes a fourth opening 32 that enables air to flow between the outside and the inside of the housing 20. As a result, the air inside the housing 20 easily flows out and the air outside the housing 20 easily flows in, and the air pressure difference between the inside and the outside of the housing 20 can be reduced. Since there is a gap 44 that connects the inside and the outside of the housing 20 in the housing 20, for example, when the inside of the housing 20 is under negative pressure due to suction of air from the second opening 31, although moisture may easily flow into the housing 20 from the gap 44, by reducing the air pressure difference between the inside and the outside of the housing 20, the inflow of moisture into the housing 20 can be suppressed. In addition, since the fourth opening 32 connects the outside of the toilet 2 and the inside of the housing 20, compared with the case where the inside of the toilet 2 is connected to the inside of the housing 20, the inflow of moisture from the inside of the toilet 2 into the housing 20 through the fourth opening 32 can be suppressed. In addition, in the toilet device 10 according to an embodiment of the present invention, a filter 45 having a mesh 46 is provided. Therefore, even when the inside of the housing 20 is under negative pressure due to suction of air from the second opening 31, dirt and dust can be prevented from entering the inside of the housing 20 through the fourth opening 32. In addition, in the toilet device 10 according to an embodiment of the present invention, the deodorizing device 40 has ribs 50 that suppress the suction of air from a predetermined direction to the second opening 31. As a result, the ribs 50 suppress the suction from a predetermined direction to the second opening 31, and it is desirable to suck air from other than the predetermined direction. By suppressing the suction of air from the direction connecting the non-condensing part inside the housing 20 and the second opening 31, it is desirable to suck the moisture at the easily condensing part inside the housing 20. As a result, condensation inside the housing 20 can be suppressed, and at the same time, restrictions on the layout of parts inside the housing 20 where electronic components can only be arranged in the non-condensing part inside the housing or on encapsulating the electronic components can be suppressed. FIG. 11 is a time 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 modification. In the above-described embodiment, the case where the rotation speed (output) of the fan 42 is changed in two stages, namely, the first time and the second time, has been described as an example. However, the form of the present invention is not limited to this, and as in the modification shown in FIG. 11, for example, the driving of the fan 42 can also be controlled in three stages. Specifically, at time t0, the seating detection sensor 13 (human body detection sensor) turns on (seating). If the control unit 15 receives a seating signal sent from the seating detection sensor 13, it sends a first drive signal to the fan 42. If the fan 42 receives the first drive signal, it starts driving at a rotational speed N1 (for example, 3700 rpm). Thus, the deodorizing device 40 can reduce the odor components resulting from the user's feces or urine. In addition, the humidity inside the toilet 2 increases due to the user's seating on the toilet seat 12. When the user sits on the toilet seat 12, the toilet device 10 starts driving the fan 42, thereby enabling the air inside the housing 20 to flow smoothly and suppressing the increase in humidity inside the housing 20. At time t11, the seating detection sensor 13 (human body detection sensor) turns off (standing up). If the control unit 15 receives a standing-up signal sent from the seating 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. At time t12, which is after the first time has elapsed since time t11, the fan 42 is driven at a rotational speed N3 (for example, 6300 rpm). The rotational speed N3 is, for example, the maximum output value of the fan 42. That is, when the first time has elapsed 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, it increases the rotational speed from the rotational speed N1 to the rotational speed N3. And the rotational speed N3 only needs to be greater than the rotational speed N1 and may not be the maximum output value of the fan 42. 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 stored in advance in the storage unit of the control unit 15. The second time is several tens of seconds to several minutes (for example, 60 seconds). And the second time can also be set to a shorter time than the first time. For example, assume that the second time is set during the period when the next user uses the toilet device 10 after the user who has used the toilet device 10 leaves the toilet device 10. That is, the second time is the replacement period of the user. During the second time when there is no user in the restroom, the toilet device 10 increases the output of the fan 42, thereby attracting the odor and moisture as much as possible. At time t13 which is after the second time has elapsed from time t12, the fan 42 is driven at a rotational speed N2 (e.g., 1900 rpm). That is, when the second time has elapsed, the control unit 15 sends a second drive signal to the fan 42. If the fan 42 receives the second drive signal, the rotational speed is decreased from rotational speed N3 to rotational speed N2. In addition, the control unit 15 starts measuring (timing) the third time from time t13. The third time is set to be longer than the first time and the second time and is stored in advance in the storage unit of the control unit 15. The third time is several minutes to several tens of minutes (e.g., 30 minutes). After that, at time t14 which is after the third time has elapsed from time t13, the control unit 15 stops driving the fan 42. Thereby, the toilet device 10 can efficiently perform deodorization and can suppress condensation inside the case 20. In a modified example, it is assumed that the driving of the fan 42 is controlled based on whether there is a user near the toilet device 10. Thus, the toilet device 10 is a toilet device that takes into account deodorization performance, suppression of condensation of electronic components inside the case 20, and noise due to the driving sound of the fan 42. Moreover, during the period from time t12 to time t14 (the second time and the third time), when the human body detection sensor (the seating detection sensor 13) detects a user, the rotational speeds N3 and N2 of the fan 42 are changed to rotational speed N1, and it becomes the control process starting from time t0. According to the toilet device 10 according to the modified example, the period of the second time is shorter than the period of the third time. Thereby, during the second time when there is no one in the toilet after getting up, odors and moisture can be attracted as much as possible. In addition, by suppressing the fan 42 from being driven at a rotation greater than the predetermined rotational speed for a long time, it is possible to further suppress the driving sound from giving people an unpleasant feeling. In the above-described embodiments and modified examples, the case where the rotational speed of the fan 42 is changed in two stages or three stages has been described as an example. However, the form of the present invention is not limited to this, and for example, the rotational speed of the fan 42 can also be changed in four or more stages. The embodiment may further include the following configuration. Configuration 1: A toilet device includes: a housing; and a deodorizing device disposed inside the housing. The deodorizing device has: a first opening for sucking air outside the housing; a second opening for sucking air inside the housing; a third opening for discharging the air sucked through the first opening and the second opening to the outside of the housing; a suction fan for sucking air outside and inside the housing through the first opening and the second opening; a first deodorizing path connecting the first opening, the second opening and the suction fan; and a second deodorizing path connecting the suction fan and the third opening. The opening area of the second opening is smaller than that of the first opening. Configuration 2: The toilet device according to Configuration 1, further comprising a human body detection sensor for detecting a human body, and causing the suction fan to rotate at a predetermined speed from the state where the human body detection sensor detects a human body until the state of not detecting a human body passes the first time, and rotate at a speed lower than the predetermined speed from after the first time until the second time passes. Configuration 3: The toilet device according to Configuration 1, further comprising a human body detection sensor for detecting a human body, and causing the suction fan to rotate at a predetermined speed from the state where the human body detection sensor detects a human body until the state of not detecting a human body passes the first time, rotate at a speed higher than the predetermined speed from after the first time until the second time passes, and rotate at a speed lower than the predetermined speed from after the second time until the third time passes. Configuration 4: The toilet device according to Configuration 3, wherein the period of the second time is shorter than the period of the third time. Configuration 5: The toilet device according to any one of Configurations 1 to 4, wherein the housing further has a fourth opening for allowing air to flow between the outside and the inside of the housing. Configuration 6: The toilet device according to Configuration 5, wherein a filter with meshes is provided at the fourth opening. Configuration 7: The toilet device according to any one of Configurations 1 to 6, wherein the deodorizing device further has ribs for suppressing the suction of air from a predetermined direction to the second opening. Configuration 8: The toilet device according to Configuration 1, further comprising a human body detection sensor for detecting a human body, and causing the suction fan to rotate at a predetermined speed when the human body detection sensor detects a human body, and rotate at a speed lower than the predetermined speed from the state of not detecting a human body until a predetermined time passes when the human body detection sensor does not detect a human body. The above describes an embodiment of the present invention. However, the present invention is not limited to the above description. Regarding the aforementioned embodiment, as long as it has the features of the present invention, inventions with appropriate design changes added by those skilled in the art are also included within the scope of the present invention. For example, the shape, size, material, configuration, installation method, etc. of each element included in the toilet device are not limited to the illustrated content, but can be appropriately changed. Additionally, as long as it is technically feasible, the elements included in the aforementioned embodiment can be combined, and as long as they include the features of the present invention, the technologies resulting from such combinations are also included within the scope of the present invention. 1: Toilet unit 2: Toilet bowl 10: Toilet device 12: Toilet seat 13: Occupancy detection sensor (human body detection sensor) 14: Toilet lid 15: Control unit 20: Housing 21: Side surface part 22: Left panel 23: Right panel 24: Rear panel 25: Lower panel 26: Bottom surface part 27: Upper surface part 28: First opening 29: Third opening 29a: Louver opening 30: Louver 31: Second opening 32: Fourth opening 33: First suction opening 34: Second exhaust opening 40: Deodorization device 41: First deodorization path part 42: Fan 43: Second deodorization path part 44: Gap (gap in the housing) 45: Filter 46: Mesh 47: Panel 48: Deodorization catalyst 50: Rib 51: Remote control light receiving part 52: Second suction opening 53: First exhaust opening 55: Nozzle 57: Inlet / outlet 60: Opening [Fig. 1] is a side view of a toilet unit of a toilet device having an embodiment of the present invention. [Fig. 2] is a rear view of the appearance of a toilet device of an embodiment of the present invention. [Fig. 3] is a top view showing the inside of the housing with the housing of the toilet device of an embodiment of the present invention omitted. [Fig. 4] is a sectional view taken along the arrow A-A direction in Fig. 3 without omitting the housing. [Fig. 5] is a sectional view taken along the arrow B-B direction in Fig. 1. [Fig. 6] is an enlarged view of the vicinity of the arrow B1 in Fig. 5. [Fig. 7] is a sectional view taken along the arrow C-C direction in Fig. 3 without omitting the housing. [Fig. 8] is a sectional view taken along the arrow D-D direction in Fig. 3 without omitting the housing. [Fig. 9] is a top view explaining the air flow inside the housing. [Fig. 10] is a time chart showing the detection state of the human body detection sensor and the driving state of the suction fan. [Fig. 11] is a time chart showing the detection state of the human body detection sensor and the driving state of the suction fan of a toilet device according to a modified example. 15: Control unit 28: First opening 31: Second opening 32: Fourth opening 40: Deodorization device 45: Filter 46: Mesh 50: Rib 51: Remote control light receiving part S1: Opening area S2: Opening area

Claims

1. A toilet apparatus comprising: a shell; and a deodorizing device disposed inside the shell, characterized in that the deodorizing device has: a first opening for drawing in air from outside the shell; a second opening for drawing in air from inside the shell; a third opening for discharging air drawn in through the first and second openings to the outside of the shell; a suction fan for drawing in air from outside and inside the shell through the first and second openings; a first deodorizing path connecting the first and second openings and the suction fan; and a second deodorizing path connecting the suction fan and the third opening, wherein the opening area of ​​the second opening is smaller than that of the first opening, and further comprising a human body detection sensor for detecting a human body, wherein the suction fan rotates at a predetermined speed from the time the human body detection sensor detects a human body until a first time has elapsed until a second time has elapsed, and rotates at a speed less than the predetermined speed from the time the first time has elapsed until a second time has elapsed.

2. A toilet apparatus comprising: a shell; and a deodorizing device disposed inside the shell, characterized in that the deodorizing device has: a first opening for drawing in air from outside the shell; a second opening for drawing in air from inside the shell; a third opening for discharging air drawn in through the first and second openings to the outside of the shell; a suction fan for drawing in air from outside and inside the shell through the first and second openings; a first deodorizing path connecting the first and second openings and the suction fan; and a second deodorizing path connecting the suction fan and the third opening, wherein the opening area of ​​the second opening is smaller than that of the first opening, and further comprises a human body detection sensor for detecting a human body, thereby enabling the suction fan... From the moment the aforementioned human body detection sensor detects a human body until the moment it does not detect a human body, until the first time has elapsed, the rotation proceeds at a predetermined speed. From the moment the first time has elapsed until the second time has elapsed, the rotation proceeds at a speed greater than the predetermined speed. From the moment the second time has elapsed until the third time has elapsed, the rotation proceeds at a speed less than the predetermined speed.

3. The toilet installation as requested in item 2, wherein, The duration of the second time period is shorter than the duration of the third time period.

4. The toilet installation as requested in any of items 1 to 3, wherein, The aforementioned shell also has a fourth opening, which allows air to circulate between the outside and inside of the aforementioned shell.

5. The toilet installation as requested in item 4, wherein, A filter with mesh is provided at the aforementioned fourth opening.

6. The toilet installation as requested in any of items 1 to 3, wherein, The aforementioned deodorizing device also has ribs that inhibit the intake of air from a predetermined direction into the aforementioned second opening.

7. A toilet apparatus comprising: a shell; and a deodorizing device disposed inside the shell, characterized in that the deodorizing device has: a first opening for drawing in air from outside the shell; a second opening for drawing in air from inside the shell; a third opening for discharging air drawn in through the first and second openings to the outside of the shell; a suction fan for drawing in air from outside and inside the shell through the first and second openings; a first deodorizing path connecting the first and second openings and the suction fan; and a second deodorizing path connecting the suction fan and the third opening, wherein the opening area of ​​the second opening is smaller than that of the first opening, and further comprising a human body detection sensor for detecting a human body, wherein the suction fan rotates at a predetermined speed when the human body detection sensor detects a human body, and rotates at a speed less than the predetermined speed from the time when the human body detection sensor does not detect a human body until a predetermined time has elapsed.

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