JP2023141426A - toilet seat device - Google Patents

Abstract

To provide a toilet seat device which uses a filter while switching it between two filters including a photocatalyst filter with a simple configuration to enhance deodorization efficiency and improve a service life of the filter.SOLUTION: A deodorization device of a toilet seat device comprises: a channel having a first channel in which a first filter including a photocatalyst is arranged and a second channel in which a second filter different in kind from the first filter is arranged and whose pressure loss is greater than that of the first channel, the first channel and the second channel being provided in parallel therein; a lamp for radiating light to the photocatalyst; a fan for blowing air; and a storage tank which can store the first filter and water. The toilet seat device comprises: a water feeding part for feeding water to the storage tank; and a control part for performing first deodorization control for making air circulate in the first channel in a state where the storage tank doe not store water to perform deodorization by the first filter, and second deodorization control for making air circulate in the second channel in a state of suppressing circulation of the air in the first channel while storing water in the storage tank so that the first filter is immersed in the water, to perform deodorization by the second filter.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to toilet seat devices.

Conventionally, toilet seat devices have been proposed that include a deodorizing device that absorbs and deodorizes odor components. For example, Patent Document 1 describes a deodorizing device in which a plurality of adsorbents are arranged. Further, Patent Document 2 discloses a deodorizing device in which two types of filters, an allergen filter and a deodorizing agent, are disposed in a flow path, and a switching device that is driven to switch the flow of air (odor). It describes a device equipped with a deodorizing device, etc.

Japanese Patent Application Publication No. 2001-81829 Japanese Patent Application Publication No. 2005-336953

Here, the deodorizing device is equipped with a photocatalyst filter that has a photocatalyst that can be regenerated by washing, and a deodorizing filter that cannot be regenerated but has a relatively high deodorizing performance such as activated carbon, and the two types of filters can be used selectively as necessary. It is possible to extend the life of the filter while increasing the deodorizing efficiency. However, if switching means for switching each filter and cleaning means for cleaning the photocatalyst filter are provided, the structure becomes complicated, leading to an increase in the size and cost of the entire device.

The main purpose of the present disclosure is to use two types of filters including a photocatalytic filter while switching between them with a simple configuration, thereby increasing the deodorizing efficiency and extending the life of the filter.

The present disclosure has taken the following measures to achieve the above-mentioned main objective.

The toilet seat device of the present disclosure includes:
A toilet seat device including a deodorizing device,
The deodorizing device is
a first filter having a photocatalyst; a second filter different in type from the first filter; a lamp that irradiates the photocatalyst of the first filter with light;
A first channel in which the first filter is disposed and a second channel in which the second filter is disposed and which has a higher pressure loss than the first channel are provided inside in parallel, and the air is inhaled from the intake port. a flow path through which air flows through either the first flow path or the second flow path and is discharged from an exhaust port;
a fan that blows air so that it circulates from the intake port toward the exhaust port;
a storage tank provided in the first flow path, accommodating the first filter and capable of storing water;
Equipped with
a water supply unit that supplies water to the storage tank;
a first deodorizing control that controls the lamp, the water supply unit, and the fan so that air is circulated through the first flow path and deodorized by the first filter when no water is stored in the storage tank; Water is stored in the storage tank so that the first filter is immersed in water, and air is allowed to flow through the second flow path while suppressing air flow through the first flow path to deodorize with the second filter. a second deodorizing control that controls the water supply unit and the fan;
The main point is to have the following.

In the toilet seat device of the present disclosure, the first deodorization control performs deodorization with the first filter by circulating air through the first flow path in a state where no water is stored in the storage tank of the first filter, and the first filter is immersed in water. A second deodorizing control is executed in which water is stored in the storage tank and air is allowed to flow through the second flow path while the air flow through the first flow path is suppressed and deodorized by the second filter. Thereby, by storing water in the storage tank, the air circulation can be switched from the first flow path to the second flow path, and the photocatalyst can be washed and regenerated. Therefore, with a simple configuration that does not require separate flow path switching means and photocatalyst cleaning means, it is possible to increase the deodorizing efficiency and extend the life of the filter by switching between the two types of filters. .

In the toilet seat device of the present disclosure, the second filter has a larger pressure loss and higher deodorizing performance than the first filter, and the first flow path is configured to conduct air while the storage tank stores water. The second flow path may be configured to be configured such that air cannot flow therethrough, and the second flow path may be provided with a constriction portion that restricts the flow of air. In this way, in the second deodorizing control, the air can be reliably circulated through the second flow path, and the second filter can efficiently deodorize the air. In addition, in the first deodorization control, the synergistic effect of the pressure loss of the second filter and the constriction part of the second flow path promotes the flow of air to the first flow path and deodorizes the first filter. The usage time of the filter can be reduced.

In the toilet seat device of the present disclosure, the storage tank is configured to constantly drain water into the toilet bowl of the toilet bowl at a predetermined amount of water, and the control unit is configured to control the storage tank when the user starts using the toilet seat device. 2. In order to start deodorization control, water is supplied to the storage tank with a water supply amount exceeding the predetermined drainage amount, and during the second deodorization control, water is supplied to the storage tank with a water supply amount that supplements the predetermined drainage amount, and the second The water supply unit may be controlled so that the water supply to the storage tank is ended when the deodorization control is completed. In this way, it is possible to quickly switch between storing water in the storage tank (immersion of the first filter) and releasing water storage (immersion) with a simple configuration.

In the toilet seat device of the present disclosure, when a user starts using the toilet seat device, the control unit turns off the lamp, ends the first deodorization control, and starts the second deodorization control; When a predetermined period of time has elapsed since the end of use of the toilet seat device, the second deodorizing control may be ended, the lamp may be turned on, and the first deodorizing control may be started. In this way, the lighting of the lamp can be limited to when the first deodorizing control is being performed, and deodorizing by the first filter can be performed appropriately.

The toilet seat device of the present disclosure includes a cleaning nozzle that spouts cleaning water to private parts of the human body, the water supply unit is configured to be able to switch the water supply destination between the cleaning nozzle and the storage tank, and the control unit is configured to switch the water supply destination between the cleaning nozzle and the storage tank. 2. When starting the deodorization control, the water supply unit is controlled to supply water to the storage tank, and when the cleaning of the private parts of the human body is instructed during the second deodorization control, the water supply unit is controlled to supply water to the cleaning nozzle. The water supply unit may be controlled. In this way, the water supply section can be used in common for cleaning the private parts of the human body and for supplying water to the storage tank, so the structure can be simplified and the device can be prevented from increasing in size.

1 is an external perspective view of a toilet bowl 1 to which a cleansing toilet seat device 10 is attached. FIG. 1 is a configuration diagram of a clean toilet seat device 10. FIG. It is a flow chart showing an example of deodorization processing. It is a time chart which shows an example when deodorization processing is performed. It is an explanatory view showing the state of air circulation when deodorization control is performed during use. It is an explanatory view showing the state of air circulation when deodorization control is performed when not in use.

Next, embodiments of the present disclosure will be described using the drawings. FIG. 1 is an external perspective view of a toilet bowl 1 to which a cleansing toilet seat device 10 is attached. FIG. 2 is a configuration diagram of the cleansing toilet seat device 10. The toilet bowl 1 is a Western-style toilet bowl, and a clean toilet seat device 10 is installed on the top surface of the toilet bowl 1.

As shown in FIG. 1, the cleansing toilet seat device 10 includes a toilet seat device main body 11 installed at the rear of the toilet bowl 1, a toilet seat 12 rotatably supported by the toilet seat device main body 11, and a toilet seat device main body 11 that is rotatably supported by the toilet seat device main body 11. It includes a freely supported toilet lid 13 and an operation panel 14 operated by the user. The toilet seat device 10 also includes a nozzle unit 20 having a cleaning nozzle 21 such as a butt cleaning nozzle or a bidet cleaning nozzle for cleaning the user's private parts, a deodorizing unit 30 for deodorizing odor, and a cleaning device in the toilet seat device main body 11. The toilet seat device 10 includes a control section 50 that controls the entire toilet seat device 10.

The nozzle unit 20 includes a water supply valve 23 that switches whether or not water flows through a water supply channel 22 connected to a water supply source, a heater 24 that heats the cleaning water that has passed through the water supply valve 23, and a cleaning water output from the heater 24. It is equipped with a switching valve 25 that can switch the water supply destination and adjust the water supply amount. The heater 24 is, for example, a ceramic heater that instantaneously heats the cleaning water, and has a rated output of, for example, 1500W. The switching valve 25 includes a bottom washing supply path 26a that supplies washing water to the washing nozzle 21 for washing the bottom, a supply path 26b for bidet washing that supplies washing water to the washing nozzle 21 for bidet washing, and a deodorizing unit 30. It is configured to selectively supply cleaning water to either one of a photocatalyst supply path 26c that supplies cleaning water to a photocatalyst filter 44, which will be described later. In addition, the nozzle unit 20 also includes a nozzle drive unit that moves each cleaning nozzle 21 forward and backward, a flow rate sensor that detects the flow rate of cleaning water, and a temperature of the cleaning water heated by the heater 24. Equipped with a temperature sensor etc.

The deodorizing unit 30 deodorizes air (odor) that is sucked in from the intake port 31a, flows through the cylindrical flow path 31, and is discharged from the exhaust port 31b. In this embodiment, the flow path 31 is formed such that, for example, an intake port 31a opens in the toilet bowl of the toilet bowl 1, and an exhaust port 31b opens in the toilet room in which the toilet bowl 1 is installed. The deodorizing unit 30 includes an activated carbon filter 42 , a photocatalyst filter 44 , an LED lamp 46 , and a fan 48 in the flow path 31 .

The activated carbon filter 42 is a filter in which activated carbon is supported on a base material, and the activated carbon is capable of adsorbing and removing odor components such as ammonia and hydrogen sulfide. The photocatalyst filter 44 is a filter in which a photocatalyst such as titanium oxide is supported on a base material, and can decompose and remove odor components by being irradiated with light such as ultraviolet rays from an LED lamp 46. The activated carbon filter 42 has a larger pressure loss and higher deodorizing performance than the photocatalyst filter 44, and is formed so that the pressure loss is, for example, about twice that of the photocatalyst filter 44. Although not particularly limited, for example, the pressure loss of the activated carbon filter 42 is 80 to 90 Pa, and the pressure loss of the photocatalyst filter 44 is 40 to 50 Pa. Note that the pressure loss of the activated carbon filter 42 may be twice or more that of the photocatalyst filter 44. Furthermore, the lamp that irradiates light onto the photocatalyst filter 44 is not limited to the LED lamp 46, but may be a halogen lamp, a fluorescent lamp, or the like. The fan 48 sucks air into the flow path 31 through the intake port 31a and blows the air so as to exhaust it through the exhaust port 31b.

Further, a partition wall 32 is provided in a part of the flow path 31 of the deodorizing unit 30 on the upstream side of the fan 48 and extends along the air circulation direction (the left-right direction and the axial direction in FIG. 2). . In this embodiment, a part of the flow path 31 is divided vertically by a partition wall 32, with the upper side being an activated carbon flow path (activated carbon filter flow path) 33 in which an activated carbon filter 42 is arranged, and the lower side being a photocatalyst filter 44. This is a photocatalyst flow path (photocatalyst filter flow path) 35 in which a photocatalyst filter flow path is arranged. In this way, the activated carbon filter 42 and the photocatalyst filter 44 are arranged in parallel within the flow path 31. Therefore, the air taken in from the intake port 31a passes through either the activated carbon filter 42 of the activated carbon flow path 33 or the photocatalyst filter 44 of the photocatalyst flow path 35, and is discharged from the exhaust port 31b.

In the activated carbon channel 33, the flow channel area of the outlet on the downstream side (outlet side, fan 48 side) is narrowed by a throttle wall 34 extending from the inner wall surface of the channel 31 toward the partition wall 32. In the photocatalyst flow path 35, for example, two photocatalyst filters 44 are arranged side by side along the flow direction, and there are partitions extending from the inner wall surface of the flow path 31 toward the partition wall 32 on the upstream side and the downstream side, respectively. Walls 36, 37 are provided. The partition wall 32 is provided with an extending wall 32a that extends downward between the two photocatalyst filters 44 from the surface on the photocatalyst flow path 35 side (the bottom surface in FIG. 2). Therefore, the photocatalytic filter 44 on the intake port 31a side is arranged to be sandwiched between the partition wall 36 on the upstream side and the extending wall 32a, and the photocatalytic filter 44 on the exhaust port 31b side is arranged between the extending wall 32a and the downstream wall. It is arranged so as to be sandwiched between the partition wall 37 and the partition wall 37. Therefore, the air flowing through the photocatalyst flow path 35 is transmitted between the partition wall 36 and the partition wall 32, to the photocatalyst filter 44 on the intake port 31a side, below the extending wall 32a, to the photocatalyst filter 44 on the exhaust port 31b side, and to the partition wall. 37 and the partition wall 32 in order. Note that two LED lamps 46 are attached to the surface of the partition wall 32 on the photocatalyst flow path 35 side (lower surface in FIG. 2) so as to face each photocatalyst filter 44.

In addition, the photocatalyst flow path 35 has a storage tank (storage tank) that accommodates two photocatalyst filters 44 and can store water (cleaning water) by a part of the inner wall of the flow path 31 and partition walls 36 and 37. tank) 38 is provided. The storage tank 38 has a bottom that communicates with the photocatalyst supply path 26c, and wash water is supplied from the photocatalyst supply path 26c. The cleaning water supplied from the photocatalyst supply path 26c to the storage tank 38 is stored so as to immerse the photocatalyst filter 44, thereby cleaning the photocatalyst filter 44. Moreover, in a state where the cleaning water is stored in the storage tank 38 above the lower end of the extending wall 32a and the photocatalyst filter 44 is immersed, air cannot flow through the photocatalyst flow path 35. A drainage channel 39 is connected to the bottom of the storage tank 38, and the wash water in the tank is discharged into the toilet bowl of the toilet bowl 1 through the drainage channel 39. The drainage channel 39 has a smaller cross-sectional area than the photocatalyst supply channel 26c, and constantly discharges the wash water in the storage tank 38 into the toilet bowl.

The operation panel 14 includes a butt washing switch for instructing butt washing, a bidet washing switch for instructing bidet washing, a stop switch for instructing to stop washing, a temperature adjustment switch for adjusting the temperature of washing water, and a deodorizing operation by the deodorizing unit 30. There is also a deodorizing switch that indicates the presence or absence of the odor.

The control unit 50 is configured as a microcomputer centered on a CPU 52, and includes a ROM 54, a RAM 56, a timer 58, an input/output port, etc. in addition to the CPU 52. As shown in FIG. 2, the control unit 50 receives operation signals from the operation panel 14, detection signals from the human body detection sensor 15 that detects a human body (user) in the toilet, and detects whether the user is sitting on the toilet seat 12. A detection signal from the seating detection sensor 16 and the like are input via the input port. Additionally, the control unit 50 outputs drive signals to the heater 24 and switching valve 25 of the nozzle unit 20, the drive unit of the cleaning nozzle 21, etc., and drive signals to the LED lamp 46 and fan 48 of the deodorizing unit 30. It is output through the port.

Next, the operation of the deodorizing unit 30 of the cleansing toilet seat device 10 configured in this manner will be explained. FIG. 3 is a flowchart showing an example of the deodorizing process. This process is executed by the CPU 52 of the control unit 50 while the deodorizing switch is turned on (deodorizing operation is performed). Moreover, FIG. 4 is a time chart showing an example when the deodorizing process is performed. FIG. 4 shows changes over time in the amount of water stored in the storage tank 38 of the photocatalyst filter 44, the amount of water supplied to the storage tank 38, and whether or not the LED lamp 46 is lit (on/off).

In the deodorizing process shown in FIG. 3, the CPU 52 of the control unit 50 first starts driving the fan 48 to blow (suction) a certain amount of air (S100), and uses the fan 48 based on the detection signal from the human body detection sensor 15. It is determined whether or not a person has been detected (S110), and whether or not deodorization during non-use (first deodorization control) is in progress (S120). If the CPU 52 determines in S110 that the user is not detected and that the deodorization is in progress in S120, the process returns to S110. Further, if the CPU 52 determines in S120 that deodorization is not being performed when not in use, the process proceeds to S220 and starts deodorizing when not in use, details of which will be described later.

On the other hand, if the CPU 52 determines that a user has been detected in S110, the CPU 52 controls the switching valve 25 to switch the supply destination of cleaning water to the photocatalyst supply path 26c, supplies water to the storage tank 38 of the photocatalyst filter 44, and also switches the LED The lamp 46 is turned off (S130, time t0 in FIG. 4). In S130, water is supplied at the maximum (100%) amount of water that exceeds the predetermined drainage amount of the drain channel 39 per unit time so that the storage tank 38 is filled with water promptly.

As a result, the amount of water stored in the storage tank 38 increases (time t0 to t1 in FIG. 4), and the photocatalyst filter 44 is immersed in water, so air (odor) is prevented from flowing through the photocatalyst flow path 35. I can do it. For this reason, as shown in FIG. 5, the air (odor) taken in from the intake port 31a flows through the activated carbon flow path 33 (solid arrow in FIG. 5), so when used, the activated carbon filter 42 quickly removes the odor. Deodorization control (second deodorization control) is started. In this way, by supplying cleaning water to the storage tank 38 and immersing the photocatalyst filter 44, the flow path in the flow path 31 is switched from the photocatalyst flow path 35 to the activated carbon flow path 33, and the activated carbon filter 42 It deodorizes. Note that in S130, room temperature cleaning water may be supplied to the storage tank 38 without driving the heater 24, or heated cleaning water may be supplied to the storage tank 38 by driving the heater 24. . In the latter case, the effect of cleaning the photocatalyst filter 44 can be increased more than in the former case, so the effect of recovering the deodorizing performance (removal performance) of the photocatalyst filter 44 by cleaning can be increased.

When the supply of washing water for filling the storage tank 38 is completed, the CPU 52 replenishes (supplies) the wastewater so as to maintain the immersion of the photocatalyst filter 44 (the amount of water stored in the storage tank 38) (S140, time t1 in FIG. 4). As described above, the storage tank 38 constantly drains the wash water from the drainage channel 39. Therefore, during deodorization during use, the photocatalyst filter 44 is kept immersed by replenishing the waste water in S140. Subsequently, the CPU 52 determines whether or not private part washing has been instructed based on the operation signal from the operation panel 14 (S150), and if it is determined that private part washing has not been instructed, the process proceeds to S190.

When the CPU 52 determines that private part washing has been instructed in S150, the CPU 52 controls the switching valve 25 to switch the supply destination of the washing water to the private part washing supply path (S160). In S160, the CPU 52 controls the switching valve 25 to switch to the butt washing supply path 26a when the butt washing is instructed, and to switch to the bidet washing supply path 26b when the bidet washing is instructed. The switching valve 25 is controlled to As a result, the storage tank 38 of the photocatalyst filter 44 is no longer replenished with cleaning water, and the amount of water stored in the storage tank 38 decreases (times t2 to t3 in FIG. 4). Note that even if the amount of water stored in the storage tank 38 decreases, the amount of water stored does not immediately become zero, and since it is difficult for air to circulate through the photocatalyst filter 44 in a wet state, air (odor) flows through the activated carbon channel. 33 to be deodorized.

Then, the CPU 52 waits for the private part cleaning to end (S170), and when determining that the private part cleaning has ended, controls the switching valve 25 to switch the supply destination of the cleaning water to the photocatalyst supply path 26c, and controls the switching valve 25 to switch the supply destination of the cleaning water to the photocatalyst supply path 26c. 38 is restarted (S180). In S180, as in S130, water is supplied at the maximum (100%) amount so that the storage tank 38 is quickly filled with water (times t3 to t4 in FIG. 4). Note that the time from time t3 to t4 can be calculated as the time required to replenish the amount discharged from the storage tank 38 during the private washing from time t2 to t3. Next, the CPU 52 determines whether or not the user's unseating is detected based on the detection signal from the seating detection sensor 16 (S190), and if it is determined that the user's unseating is not detected, the process returns to S140 and repeats the process. .

On the other hand, if the CPU 52 determines that unseating has been detected in S190, the timer 58 starts measuring the time after unseating (S200), and waits until the time after unseating reaches a predetermined time (S210). The predetermined time is set to a time of several minutes, such as one minute, for example. When the CPU 52 determines that the time after unseating has reached the predetermined time, it stops the water supply to the storage tank 38 of the photocatalyst filter 44, turns on the LED lamp 46 (S220, time t5 in FIG. 4), and returns to S110. . When the water supply to the storage tank 38 is stopped, the water stored in the storage tank 38 is drained from the drainage channel 39, so that the amount of water stored in the storage tank 38 gradually decreases. Moreover, when the photocatalyst filter 44 dries and the magnitude relationship of pressure loss returns to normal, air (odor) mainly flows through the photocatalyst flow path 35 (solid arrow in FIG. 6), and the activated carbon flow path with a large pressure loss. 33, it becomes difficult to distribute (dotted line arrow in Figure 6). After starting deodorization when not in use, which mainly uses the photocatalyst filter 44 in this way, the CPU 52 returns to S110 and repeats the process.

In the above-described flush toilet seat device 10, there is a deodorization control (first deodorization control) when not in use, in which air is circulated through the photocatalyst flow path 35 and deodorized by the photocatalyst filter 44 when the storage tank 38 is not filled with water, and a photocatalyst deodorization control. In-use deodorization control (second deodorization control) is performed in which air is circulated through the activated carbon flow path 33 and deodorized by the activated carbon filter 42 in a state where water is stored in the storage tank 38 so that the filter 44 is immersed in water. As a result, by storing water in the storage tank 38, the flow path through which air flows can be switched, and the photocatalyst filter 44 can be cleaned to remove products generated during odor decomposition and the deodorizing performance can be regenerated. can. Therefore, with a simple configuration that does not require separate flow path switching means and cleaning means (washing water supply means) for the photocatalytic filter 44, the two types of filters can be appropriately switched to increase deodorizing efficiency and extend the service life. It is possible to aim for

Furthermore, although the activated carbon filter 42 has a larger pressure loss and higher deodorizing performance than the photocatalyst filter 44, it cannot be regenerated like the photocatalyst filter 44. The photocatalyst flow path 35 is configured such that air cannot flow therethrough when the photocatalyst filter 44 is immersed in water. Further, the activated carbon flow path 33 is provided with a throttle wall 34 that restricts the flow of air. For these reasons, when the cleansing toilet seat device 10 is used, air is reliably circulated through the activated carbon flow path 33 and deodorized by the activated carbon filter 42 with high adsorption efficiency, making it possible to rapidly remove odors. Furthermore, when the cleansing toilet seat device 10 is not in use, due to the synergistic effect of the pressure loss of the activated carbon filter 42 and the restricting wall 34 of the activated carbon flow path 33, the pressure loss of the activated carbon flow path 33 is more reliably reduced than that of the photocatalyst flow path 35. Make it bigger. Thereby, when not in use, it is possible to promote the circulation of air to the photocatalyst flow path 35, and to deodorize the odor that is not completely deodorized when in use, using the photocatalyst filter 44. Further, when not in use, the flow of air to the activated carbon filter 42 is suppressed to limit the usage time, so the life of the activated carbon filter 42 can be extended.

Furthermore, when deodorization control during use is started, water is supplied to the storage tank 38 with an amount of water that exceeds the predetermined amount of water discharged from the drainage channel 39, and during deodorization control during use, water is supplied to the storage tank 38 with an amount of water that supplements the predetermined amount of water discharged. When the deodorization control during use is completed, the water supply to the storage tank 38 is ended and the water is drained. Therefore, the immersion and release of the immersion of the photocatalyst filter 44 in the storage tank 38 can be quickly switched with a simple configuration.

Further, when a user is detected, the lighting of the LED lamp 46 is limited to deodorizing when not in use, thereby suppressing unnecessary lighting, so that the photocatalyst filter 44 can appropriately deodorize.

Further, the switching valve 25 is configured to be able to switch the supply destination of the washing water flowing through the water supply channel 22 between the washing nozzle 21 (butt washing nozzle or bidet washing nozzle) and the storage tank 38 . The control unit 50 controls the switching valve 25 so that cleaning water is supplied to the storage tank 38 when starting deodorization control during use, and when private area cleaning is instructed during deodorization control during use, The switching valve 25 is controlled so that cleaning water is supplied to the nozzle 21. Therefore, since the configuration for supplying water for private part cleaning and the configuration for supplying water to the storage tank 38 are shared, it is possible to prevent the cleansing toilet seat device 10 from increasing in size as a simple configuration. Furthermore, the effect of cleaning the photocatalyst filter 44 can be enhanced by supplying cleaning water heated by the heater 24 to the storage tank 38.

In the embodiment described above, the configuration for supplying water for private part cleaning and the configuration for supplying water to the storage tank 38 are shared, but the present invention is not limited to this. The supply structure may be provided separately. That is, the deodorizing unit 30 may include a dedicated water supply section for supplying cleaning water to the storage tank 38. This makes it possible to reliably maintain the storage tank 38 full of water (the photocatalyst filter 44 is immersed) even if local cleaning is performed during deodorization control during use. Note that the deodorizing unit 30 may include a water supply section that supplies cleaning water to the storage tank 38, and a control section that executes deodorizing control when in use and deodorizing control when not in use.

In the embodiment, when a user is detected, the LED lamp 46 is turned off to end the deodorizing control when not in use, and the deodorizing control when in use is started, and when a predetermined period of time has elapsed since the user was unseated (the time after unseated is When the predetermined time has elapsed), the deodorizing control during use is ended, and the LED lamp 46 is turned on to start the deodorizing control when not in use, but the present invention is not limited thereto. For example, when the seating detection sensor 16 detects that the user is sitting on the toilet seat 12, the LED lamp 46 may be turned off to end the deodorizing control when not in use and to start the deodorizing control when in use. Further, at the timing when water storage in the storage tank 38 is completed, the LED lamp 46 may be turned off to end the deodorization control when not in use and at the same time start the deodorization control when in use. Furthermore, when the human body detection sensor 15 no longer detects the user, the deodorization control during use may be terminated, and the LED lamp 46 may be turned on to start the deodorization control during non-use. Further, the LED lamp 46 may be turned on to start deodorization control when not in use at the timing when drainage from the storage tank 38 is completed. Alternatively, the LED lamp 46 may be kept lit at all times. Furthermore, in the embodiment, when the cleansing toilet seat device 10 is not in use, the first deodorization control is executed as the deodorization control when not in use, and when the cleansing toilet seat device 10 is in use, the second deodorization control is executed as the deodorization control in use. , but not limited to this. That is, the first deodorizing control and the second deodorizing control may be switched and executed regardless of whether the device is in use or not.

In the embodiment, the storage tank 38 (drainage channel 39) is configured to constantly drain water into the toilet bowl, but is not limited to this, and may be configured to be able to switch between draining and not draining. However, in order to have a simple configuration, it is preferable to configure it as in the embodiment.

In the embodiment, the activated carbon filter 42 is provided as a second filter different in type from the photocatalyst filter 44 (first filter), but the present invention is not limited thereto. The second filter may be a filter that does not have a photocatalyst unlike the first filter, and in addition to a filter that physically adsorbs with activated carbon or the like, it may also be a chemical filter that chemically adsorbs with ion exchange fibers, etc. A filter capable of chemical adsorption and physical adsorption may also be used.

In the embodiment, the fan 48 is driven at a constant rotation speed to keep the air volume constant, but the invention is not limited to this, and the air volume may be changed. For example, when deodorizing when in use, the rotational speed of the fan 48 may be increased to increase the air volume, and when deodorizing when not in use, the rotational speed of the fan 48 may be lowered to reduce the air volume. Alternatively, the air volume may be changed based on an operational instruction from the user.

The correspondence between the main elements of the embodiment and the main elements of the present disclosure described in the section of means for solving the problems will be explained. The cleansing toilet seat device 10 of the embodiment corresponds to the "toilet seat device" of the present disclosure, the deodorizing unit 30 corresponds to the "deodorizing device", the photocatalyst filter 44 corresponds to the "first filter", and the activated carbon filter 42 corresponds to the "first filter". 2 filter", the LED lamp 46 corresponds to the "lamp", the photocatalyst channel 35 corresponds to the "first channel", the activated carbon channel 33 corresponds to the "second channel", The flow path 31 corresponds to a "flow path," the fan 48 corresponds to a "fan," the storage tank 38 corresponds to a "storage tank," and the water supply channel 22, water supply valve 23, and switching valve 25 correspond to a "water supply section." ”, and the control unit 50 corresponds to the “control unit”. Further, the aperture wall 34 corresponds to a "diaphragm section". The cleaning nozzle 21 corresponds to a "cleaning nozzle".

Note that the correspondence relationship between the main elements of the embodiment and the main elements of the present disclosure described in the column of means for solving the problem is the same as the correspondence relationship between the main elements of the embodiment and the main elements of the present disclosure described in the column of means for solving the problem. Since this is an example for specifically explaining a mode for implementing the above, it is not intended to limit the elements of the present disclosure described in the column of means for solving the problems. In other words, the interpretation of the present disclosure described in the column of means to solve the problem should be made based on the description in that column, and the embodiments should be interpreted based on the book described in the column of means to solve the problem. This is just one specific example of disclosure.

Although the embodiments for carrying out the present disclosure have been described above, the present disclosure is not limited to these embodiments in any way, and may be implemented in various forms without departing from the gist of the present disclosure. Of course.

The present disclosure can be used in the toilet seat device manufacturing industry and the like.

1 Toilet bowl, 10 Cleaning toilet seat device, 11 Toilet seat device main body, 12 Toilet seat, 13 Toilet lid, 14 Operation panel, 15 Human body detection sensor, 16 Seating detection sensor, 20 Nozzle unit, 21 Cleaning nozzle, 22 Water supply channel, 23 Water supply valve, 24 Heater, 25 Switching valve, 26a Butt cleaning supply channel, 26b Bidet cleaning supply channel, 26c Photocatalyst supply channel, 30 Deodorizing unit, 31 Flow channel, 31a Inlet port, 31b Exhaust port, 32 Partition wall, 32a Extension part, 33 activated carbon channel, 34 aperture wall, 35 photocatalyst channel, 36, 37 partition wall, 38 storage tank, 39 drainage channel, 42 activated carbon filter, 44 photocatalyst filter, 46 LED lamp, 48 fan, 50 control section , 52 CPU, 54 ROM, 56 RAM, 58 timer.

Claims (5)

A toilet seat device comprising a deodorizing device,
The deodorizing device is
a first filter having a photocatalyst; a second filter different in type from the first filter; a lamp that irradiates the photocatalyst of the first filter with light;
A first channel in which the first filter is disposed and a second channel in which the second filter is disposed and which has a higher pressure loss than the first channel are provided inside in parallel, and the air is inhaled from the intake port. a flow path through which air flows through either the first flow path or the second flow path and is discharged from an exhaust port;
a fan that blows air so that it circulates from the intake port toward the exhaust port;
a storage tank provided in the first flow path, accommodating the first filter and capable of storing water;
Equipped with
a water supply unit that supplies water to the storage tank;
a first deodorizing control that controls the lamp, the water supply unit, and the fan so that air is circulated through the first flow path and deodorized by the first filter when no water is stored in the storage tank; Water is stored in the storage tank so that the first filter is immersed in water, and air is allowed to flow through the second flow path while suppressing air flow through the first flow path to deodorize with the second filter. a second deodorizing control that controls the water supply unit and the fan;
A toilet seat device comprising: The toilet seat device according to claim 1,
The second filter has a larger pressure loss and higher deodorizing performance than the first filter,
The first flow path is configured such that air cannot flow therein when the storage tank stores water;
The second flow path is provided with a constriction section that restricts air flow. The toilet seat device. The toilet seat device according to claim 1 or 2,
The storage tank is configured to constantly drain water into the toilet bowl at a predetermined amount,
The control unit supplies water to the storage tank with a water supply amount exceeding the predetermined drainage amount in order to start the second deodorization control when a user starts using the toilet seat device, and controls the water supply amount during the second deodorization control. The toilet seat device is configured to control the water supply unit so as to supply water to the storage tank with a water supply amount that supplements the predetermined drainage amount, and to end the water supply to the storage tank when the second deodorization control is completed. The toilet seat device according to any one of claims 1 to 3,
When the user starts using the toilet seat device, the control unit turns off the lamp, ends the first deodorizing control, and starts the second deodorizing control, and starts the second deodorizing control from the end of use of the toilet seat device. When a predetermined period of time has elapsed, the second deodorizing control is ended, the lamp is turned on, and the first deodorizing control is started. The toilet seat device according to any one of claims 1 to 4,
Equipped with a cleaning nozzle that sprays cleaning water to private parts of the human body,
The water supply unit is configured to be able to switch the water supply destination between the cleaning nozzle and the storage tank,
The control unit controls the water supply unit to supply water to the storage tank when starting the second deodorization control, and when the cleaning of the human body private part is instructed during the second deodorization control, A toilet seat device that controls the water supply section to supply water to a cleaning nozzle.

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