JP7395123B2 - Deodorizing device for toilet space - Google Patents

Description

The present invention relates to a deodorizing device for a toilet space.

2. Description of the Related Art As a deodorizing device that deodorizes a toilet space, one is known that dissolves odor components in water by bringing air containing the odor components into contact with water. For example, the deodorizing function section described in Patent Document 1 is provided in a warm water-washing toilet seat device, and includes a water jet device that jets water onto gas sucked into a gas flow path by a fan device. This water ejecting device includes a water storage section that stores water and a vibrator placed at the bottom of the water storage section. Alternatively, the water ejecting device is a nozzle that ejects water in the form of mist. Odors and suspended matter (dust) contained in the gas sucked into the gas flow path are removed from the gas by adhering to the water jetted out by the water jetting device.

JP2017-223030A

In the configuration as disclosed in Patent Document 1, there is a possibility that water with odor and suspended matter (dust) attached thereto remains in the deodorizing function section, which may cause bacteria to propagate.

Therefore, the present invention provides a deodorizing device for a toilet space that can suppress the proliferation of bacteria.

A deodorizing device for a toilet space according to a first aspect of the invention includes: an intake part forming an intake port; an exhaust part forming an exhaust port; a fan device that sucks air from the intake port; a water deodorizing section that is provided in a deodorizing air passage that communicates with the air and circulates the air, and that is capable of storing water in the deodorizing air passage and/or spouting water to the air taken in from the air intake port; A water supply unit that supplies water to the water deodorization unit, a drainage unit that forms a drainage port that drains water from the water deodorization unit, and a control unit that controls water supply by the water supply unit and air intake by the fan device, and the control unit The section includes a deodorizing mode in which water is supplied by the water supply section and air is taken in by the fan device to deodorize the water, and then water is drained from the drain port, and a deodorizing mode in which the water supply by the water supply section is stopped and the water is drained from the drain port. a drying mode in which the fan device is driven to dry the water deodorizing section.
According to the first invention, by executing the drying mode, the water deodorizing section can be dried, bacteria remaining in the water deodorizing section can be reduced, and biofilm formation in the water deodorizing section can be suppressed. .
In a second invention based on the first invention, the control section executes the drying mode during a non-use time period.
According to the second invention, by executing the drying mode during the non-use time period, that is, during the time period when dust caused by the user is not generated, dust flows into the downstream side of the deodorizing air path of the water deodorizing section. It is possible to dry the water deodorizing section while suppressing this.
A third aspect of the present invention is based on the first or second aspect, wherein the control section causes the fan device to take in air at a first air volume in the deodorizing mode, and causes the fan device to suck air at the first air volume in the drying mode. Intake is performed at the following second air volume.
According to the third invention, the desired deodorizing effect is exhibited in the deodorizing mode, and the amount of dust sucked in is suppressed in the drying mode, thereby preventing the dust from flowing into the downstream side of the deodorizing air path of the water deodorizing section. The water deodorizing section can be dried while suppressing the odor.
A fourth invention is based on any one of the first to third inventions, wherein the control unit causes the fan device to suck air for a first time in the deodorizing mode, and the control unit causes the fan device to perform air intake for a first time in the drying mode. The device performs inspiration during a second time period that is longer than the first time period.
According to the fourth invention, the reliability of sterilization can be improved.
In a fifth aspect of the present invention, in any one of the first to fourth aspects, the control section further executes a cleaning mode in which the water deodorizing section is cleaned by supplying water from the water supply section, and executes the drying mode. , executed following the cleaning mode, and the driving time of the fan device in the cleaning mode is shorter than the driving time of the fan device in the drying mode.
According to the fifth invention, by using the cleaning mode, it is possible to wash away bacteria remaining in the water deodorizing section and to suppress the bacteria from remaining in the water deodorizing section. Further, dust remaining in the water deodorizing section can be washed away. Furthermore, by executing the drying mode following the cleaning mode, the drying mode can be executed with fewer bacteria remaining in the water deodorizing section, and the time required to execute the drying mode can be shortened. By shortening the execution time of the drying mode, it is possible to suppress the amount of dust sucked in and to suppress the dust from flowing into the downstream side of the deodorizing air path of the water deodorizing section.
A sixth invention is based on any one of the first to fifth inventions, further comprising a detection means for detecting a user, and wherein the control section detects a user by the detection means during execution of the drying mode. When detected, the drying mode is stopped and water is supplied from the water supply section.
While the drying mode is running, there is less water in the water deodorizing section compared to when in the deodorizing mode, so the dust sucked in with the air is not captured by water and flows into the downstream side of the deodorizing air path of the water deodorizing section. There are concerns that Here, dust in the toilet space is more likely to be generated when the toilet is used by a person.
According to the sixth invention, by supplying water to the water deodorizing section at a timing when a person is detected in the toilet space and the amount of dust generated is likely to increase, dust is supplemented with water, and the water deodorizing section is deodorized. Inflow of dust to the downstream side of the air path can be suppressed.
In a seventh aspect based on the sixth aspect, the control section causes the drying mode to continue when the detection means continues to detect the user a predetermined number of times during the drying mode.
According to the seventh invention, insufficient drying due to an excessive increase in the number of times the drying mode is stopped can be suppressed.

According to the deodorizing device for a toilet space of the present invention, the proliferation of bacteria can be suppressed by drying the water deodorizing section.

1 is a perspective view of an embodiment of a toilet device; FIG. FIG. 1 is a cross-sectional perspective view of a water deodorizing unit of one embodiment. FIG. 2 is a cross-sectional view of a water deodorization unit of one embodiment. It is a flowchart of the example of operation by control of the control part in the deodorizing device for toilet spaces of one embodiment.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components in each drawing are denoted by the same reference numerals as much as possible, and redundant description will be omitted.

FIG. 1 is a perspective view of a toilet device 1 according to an embodiment of the present invention.

The toilet device 1 is installed in a toilet space. The toilet device 1 includes a seated toilet bowl (hereinafter simply referred to as a toilet bowl) 100 and a sanitary cleaning device 200 installed on the toilet bowl 100. The toilet bowl 100 has a bowl portion 101 that is open upward and stores water. The bowl part 101 is cleaned with wash water by a user operating an operating part (not shown), and drains the wash water to a drainage pipe (not shown).

The sanitary cleaning device 200 has a private part cleaning function section that realizes cleaning of the private parts such as the buttocks of a user who is sitting on the toilet bowl 100 via a toilet seat (not shown). In addition, in FIG. 1, nozzles and the like included in the private part cleaning function section are not shown and omitted. The sanitary cleaning device 200 also includes a toilet space deodorizing device (hereinafter simply referred to as a deodorizing device) 10. The deodorizing device 10 includes a water deodorizing unit 20 and a control section 90.

FIG. 2 is a cross-sectional perspective view of the water deodorizing unit 20. FIGS. 3A and 3B are cross-sectional views of the water deodorizing unit 20.

The water deodorizing unit 20 includes a water deodorizing section 40, a fan device 60, and an oxidation catalyst 70. The water deodorizing section 40, the fan device 60, and the oxidation catalyst 70 are provided in a space formed by the case 21 and the cover 22. The fan device 60 is, for example, a sirocco fan. Alternatively, the fan device 60 may be an axial fan or a cross flow fan.

In the space formed by the case 21 and the cover 22, a deodorizing air passage 80 is formed through which air flows when the fan device 60 is driven. A water reservoir 50 is provided in the deodorizing air passage 80. The water deodorizing unit 20 also includes an intake section 123 forming an intake port 23, an exhaust section 124 forming an exhaust port 24, and a drainage section 125 forming a drainage port 25. In this example, the intake port 23 also serves as the drain port 25. The intake port 23 and the exhaust port 24 communicate with a deodorizing air passage 80.

As the fan device 60 is driven, air is sucked into the deodorizing air passage 80 from the intake port 23, and the sucked air flows through the water reservoir 50, is sucked into the fan device 60, and further flows through the oxidation catalyst 70. The water is then exhausted to the outside of the water deodorizing unit 20 from the exhaust port 24.

The water reservoir 50 is located between the intake port 23 and the fan device 60. The fan device 60 is arranged downstream of the water reservoir 50 in the deodorizing air passage 80.

The upper part of the water reservoir part 50 is closed by the cover 22, and the left and right sides are closed by the side walls of the case 21. A rear wall portion 41 is provided at the most downstream portion of the deodorizing air passage 80 of the water reservoir portion 50.

A bottom surface of a water reservoir portion 50 is formed in the case 21. The bottom surface of the water reservoir section 50 has a first bottom surface 51 and a second bottom surface 52.

The first bottom surface 51 slopes downward along a first direction A from the rear wall portion 41 toward the drain port 25 (which also serves as the intake port 23). The second bottom surface 52 is inclined downward in the direction toward the first bottom surface 51.

The connecting portion 53 between the first bottom surface 51 and the second bottom surface 52 is formed, for example, in a straight line. Alternatively, the connecting portion 53 between the first bottom surface 51 and the second bottom surface 52 may extend to include a surface. A large portion (more than half) of the connecting portion 53 is inclined downward along the first direction A. That is, the connecting portion 53 has a portion that is sloped downward along the first direction A, and a portion that is sloped downward along the first direction A (a portion that is sloped upward along the first direction A). horizontal area).

The connecting portion 53 extends at least to right below the intake port 23 (drain port 25). In the example shown in FIG. 2, the connection portion 53 extends from the water reservoir portion 50 beyond the intake port 23 (drain port 25) to the outside of the intake port 23 (drain port 25).

A protruding wall 42 that protrudes from the rear wall part 41 into the deodorizing air passage 80 is provided on the rear wall part 41 of the water reservoir part 50. The protruding wall 42 is inclined with respect to the vertical direction so that its upper end is located upstream in the deodorizing air passage 80 than its lower end. A space is formed above the upper end of the protruding wall 42 to allow air to flow from the water reservoir 50 to the fan device 60 side.

Water is supplied to the water reservoir section 50 from the water supply section 27. The water supply unit 27 is, for example, a water supply nozzle having a water supply port 27a (shown in FIG. 3). For example, water is supplied from a water supply source (water supply) to a water supply channel to a nozzle included in a private part cleaning function section (not shown), and further branched from the water supply channel and supplied to the water supply section 27 . After branching from the water supply channel, water may be supplied to the electrolytic cell, sterilized water may be generated in the electrolytic cell, and the sterilized water may be supplied to the water supply section 27.

The water stored in the water reservoir section 50 is drained from the drain port 25. When the water deodorizing unit 20 is installed on the toilet bowl 100 shown in FIG. is drained to.

In this embodiment, for example, a water supply section 27 is provided near the drain port 25. The water supply section 27 is located outside the water reservoir section 50, and the drain port 25 is located between the water reservoir section 50 and the water supply section 27. A water supply port 27a of the water supply section 27 is directed toward the drain port 25. Note that the position where the water supply section 27 is provided is not limited to this example, and may be any position that can supply water to the water reservoir section 50.

Next, the operation of the deodorizing device 10 of this embodiment will be explained.

The control unit 90 controls water supply by the water supply unit 27 and air intake by the fan device 60. When a user's seating on the toilet bowl 100 shown in FIG. 1 is detected, the fan device 60 is driven under the control of the control unit 90, and water is supplied from the water supply unit 27 to the water reservoir unit 50. Water is discharged from the water supply section 27 toward the intake port 23 (drain port 25), and water is supplied to the water reservoir section 50 through the intake port 23 (drain port 25). The seating of the user on the toilet bowl 100 is detected by a detection means provided on the toilet seat, the toilet bowl 100, or the toilet space. The detection means may be any sensor that can detect the presence or absence of a user in the toilet space, such as a pyroelectric sensor that uses infrared signals. Alternatively, the sensor may be a microwave sensor, such as a Doppler sensor, for example.

For example, driving of the fan device 60 and supplying water from the water supply unit 27 are started at the same time. Alternatively, there may be a time lag between the drive timing of the fan device 60 and the water supply timing. For example, driving of the fan device 60 may be started after water supply starts. The control unit 90 controls the start and stop of driving the fan device 60 and the start and stop of water supply from the water supply unit 27 . The driven fan device 60 sucks air into the deodorizing air passage 80 from the intake port 23.

FIG. 3(a) is a cross-sectional view illustrating the water collecting operation in this embodiment.

In FIG. 3(a), the flow of air within the deodorizing air passage 80 is represented by thick black arrows. Air taken in from the intake port 23 by the drive of the fan device 60 flows through the water reservoir 50, is sucked into the fan device 60, and is exhausted from the exhaust port 24.

Air under atmospheric pressure is sucked into the deodorizing air passage 80 from the intake port 23. The fan device 60 functions as a negative pressure forming means for generating negative pressure in the deodorizing air passage 80. Since the first bottom surface 51 of the water reservoir section 50 is sloped downward along the first direction toward the drain port 25, the water supplied to the water reservoir section 50 flows through the first bottom surface 51 of the water reservoir section 50. It may flow towards the drain 25.

However, when the fan device 60 is driven, the negative pressure generated in the water reservoir section 50 forces air flowing in a direction opposite to the water drainage direction (first direction) against the water W, and the water supply section 27 The water W supplied from the tank can be stored on the bottom surface of the water storage section 50. The water W pushed by the air is dammed up by the rear wall portion 41 and the protruding wall 42, and is prevented from moving downstream in the deodorizing air path 80. Water supply from the water supply unit 27 is stopped after a predetermined time.

A part of the air that is taken in from the intake port 23 and contains odor components flows along the surface of the water W stored in the water reservoir 50, and the surface of the water W stored in the water reservoir 50 is turned into a deodorizing air. It forms part of the channel 80. Among the odor components, highly water-soluble odor components such as ammonia and trimethylamine are dissolved in the water W stored in the water reservoir 50 and deodorized.

The protruding wall 42 prevents water droplets near the water surface, which are generated when the water surface ripples due to collision with the air, from moving toward the fan device 60 by riding on the air current.

Odor components such as hydrogen sulfide and methyl mercaptan that were not dissolved in the water W in the air flowing further downstream than the water reservoir 50 through the deodorizing air passage 80 are removed from the oxidizer located adjacent to the exhaust port 24. The catalyst 70 deodorizes. The oxidation catalyst 70 oxidizes and decomposes hydrogen sulfide and methyl mercaptan.

In addition, dust such as dust and paper pieces sucked together with the air from the intake port 23 can be captured by the water W stored in the water reservoir 50, and the oxidation catalyst 70 is caused by the dust flowing to the oxidation catalyst 70. performance deterioration can be suppressed. Furthermore, since the fan device 60 is also arranged downstream of the deodorizing air passage 80 rather than the water reservoir 50, it is possible to prevent dust from reaching the fan device 60.

Further, normally, a mesh filter is provided at the intake port of a deodorizing device to capture dust, but in this embodiment, dust can be captured by the water reservoir 50, so that there is no need to provide a mesh filter. good. Therefore, in this embodiment, it is possible to eliminate the trouble of maintaining the mesh filter.

FIG. 3(b) is a sectional view illustrating the drainage operation in this embodiment.

The user leaves the toilet bowl 100, and based on this departure, the drive of the fan device 60 is stopped. By stopping the fan device 60, the water reservoir section 50 returns to atmospheric pressure, and the force holding the water W in the accumulated state is released. Thereby, the water W accumulated in the water reservoir section 50 is drained from the drain port 25 to the bowl section 101 shown in FIG. Moreover, dust and the like captured in the water W stored in the water storage section 50 are also drained together with the water W. The user's departure from the toilet bowl 100 is detected by a sensor provided on the toilet seat, the toilet bowl 100, or within the toilet space.

Water accumulates on the first bottom surface 51 and the second bottom surface 52. Since the first bottom surface 51 slopes downward in the direction toward the drain port 25, water on the first bottom surface 51 flows toward the drain port 25 along the downward slope. Since the second bottom surface 52 slopes downward in the direction toward the first bottom surface 51, water on the second bottom surface 52 mainly flows toward the connecting portion 53 between the first bottom surface 51 and the second bottom surface 52.

Furthermore, a connecting portion 53 is provided on the first bottom surface 51 in the direction toward the drain port 25 . Therefore, water on the first bottom surface 51 and water on the second bottom surface 52 are mainly concentrated in the connecting portion 53. Water that is likely to be left behind in the flow in other areas can be collected in the connecting portion 53. Most of the connecting portion 53 is inclined downward in the direction toward the drain port 25.

The water collected in the connection part 53 flows toward the end 53a of the connection part 53 on the drain port 25 side while being prevented from discontinuing the flow in a cohesive state. Water is drained into the bowl portion 101 from the region (including the portion 53a itself). By forming a flow in which the water is aggregated (coagulated) in this way, it is possible to prevent the water from becoming thin and the water flow to be interrupted, and the water is formed in an island shape on the first bottom surface 51 and the second bottom surface 52. You can prevent it from remaining. This suppresses the formation of biofilm on the first bottom surface 51 and the second bottom surface 52.

Note that water can also flow from the first bottom surface 51 toward the drain port 25 without being collected at the connecting portion 53. Further, a flow of water from the second bottom surface 52 toward the drain port 25 without being collected at the connecting portion 53 can also be formed. Of the water stored in the water reservoir 50, the largest amount is collected in the connection part 53 and drained from the area near the end 53a.

Drainage performance and water storage performance in the water reservoir section 50 are in a trade-off relationship with respect to the downward slope angle of the first bottom surface 51 toward the drain port 25. Note that in this specification, the inclination angle represents the inclination angle with respect to the horizontal line (or horizontal plane). The greater the angle of the downward slope of the first bottom surface 51, the higher the drainage performance, but the lower the water storage performance. On the other hand, the angle of the downward slope of the second bottom surface 52 toward the first bottom surface 51 greatly affects drainage performance, but has little effect on water storage performance. The greater the angle of the downward slope of the second bottom surface 52 toward the first bottom surface 51, the higher the drainage performance becomes, but the water storage performance hardly decreases.

According to the present embodiment, by forming the first bottom surface 51 and the second bottom surface 52 that are downwardly inclined in different directions on the bottom surface of the water reservoir section 50, the bottom surface of the water reservoir section 50 when installed in the toilet bowl 100, etc. Drainage and water storage properties are less affected by variations in the slope of the water.

For example, by designing the downward slope angle of the first bottom surface 51 toward the drain port 25 to be smaller in advance in consideration of installation variations, etc., the downward slope angle of the first bottom surface 52 when installed in the toilet bowl 100 is made smaller than expected. Even if the water capacity becomes large, it is possible to maintain the desired water storage capacity.

The decrease in drainage performance by making the downward slope angle of the first bottom surface 51 smaller can be compensated for by increasing the downward slope angle of the second bottom surface 52 in the direction toward the first bottom surface 51. This makes it possible to compensate for the decrease in drainage performance and ensure desired drainage performance over the entire bottom surface of the water reservoir section 50. Even if the downward slope angle of the first bottom surface 52 becomes smaller than expected in the installed state, by increasing the downward slope angle of the second bottom surface 52 in the direction toward the first bottom surface 51, It is possible to compensate for the decrease in drainage performance of the bottom surface 51 and ensure desired drainage performance over the entire bottom surface of the water reservoir section 50.

As described above, according to the present embodiment, in the configuration in which odor components are dissolved in the water stored in the water reservoir section 50, the stability of the two conflicting performances of water storage and drainage can be ensured.

When a movable member such as a solenoid valve is used as a drainage mechanism, there is a concern that the solenoid valve may become stuck and open improperly, making it impossible to drain water. Water can be drained simply by stopping the formation of negative pressure. Water can be drained from the water reservoir part 50 with a simple configuration, the amount of water remaining in the water reservoir part 50 can be reduced, and the formation of biofilm caused by the remaining water can be suppressed.

As described above, the control unit 90 executes water supply by the water supply unit 27 and intake by the fan device 60 to deodorize odor components from the air sucked into the deodorizing air passage 80, and then Runs a deodorizing mode that drains the water accumulated in the tank.

Furthermore, the control unit 90 executes a drying mode and a cleaning mode. In the drying mode, the control unit 90 stops the water supply unit 27 from supplying water to the water reservoir 50, drives the fan device 60 in a state where the water stored in the water reservoir 50 is drained from the drain port 25, and drains the water from the water reservoir 50. Dry the reservoir 50. In the cleaning mode, the control unit 90 supplies water from the water supply unit 27 to the water reservoir 50 to clean the water reservoir 50.

FIG. 4 is a flowchart of an example of the operation of the deodorizing device 10 under the control of the control unit 90.

The process advances from the standby state of step S1 to step S2, and if in step S2 there is no detection of a person or sitting on the toilet seat by the detection means, the process proceeds to step S3.

In step S3, it is determined whether the toilet device 1 has been unused for a certain period of time. In step S3, if the unused state has not passed for a certain period of time, the process returns to the standby state (step S1).

In step S3, if the unused state has passed for a certain period of time, the process advances to step S4. In step S4, the fan device 60 is driven and the cleaning mode is started. After the fan device 60 is driven, water supply from the water supply section 27 to the water reservoir section 50 is started in step S5. In the cleaning mode, the start of driving the fan device 60 and the start of water supply by the water supply section 27 may be done at the same time, or the fan device 60 may be driven after the start of water supply.

The water supply is continued for a predetermined period of time, and then the water supply is stopped in step S6, and furthermore, the drive of the fan device 60 is stopped in step S7. The water supply may be stopped and the drive of the fan device 60 may be stopped at the same time, or the water supply may be stopped after the fan device 60 is stopped. By stopping the drive of the fan device 60, the water supplied to the water reservoir 50 is drained from the drain port 25 (step S8).

With this cleaning mode, bacteria remaining in the water reservoir 50 can be washed away and bacteria remaining in the water reservoir 50 can be suppressed. Thereby, formation of biofilm in the water reservoir section 50 can be suppressed. Furthermore, dust remaining in the water reservoir 50 can be washed away.

The driving time of the fan device 60 in the cleaning mode is shorter than the driving time of the fan device 60 in the drying mode. The fan device 60 does not need to be driven in the cleaning mode. When the fan device 60 is driven, water can be temporarily stored in the water reservoir 50 due to the negative pressure formed in the water reservoir 50 as described above, and the water can be spread over a wide area of the water reservoir 50. cleaning residue can be suppressed.

Following the cleaning mode, a drying mode is executed. First, in step S9, driving of the fan device 60 is started. In this drying mode, water is not supplied to the water reservoir 50. Thereafter, the fan device 60 continues to be driven (step S10), and the water reservoir 50 is dried by the air taken into the water reservoir 50 and flowing through the water reservoir 50. By drying the water reservoir 50, bacteria remaining in the water reservoir 50 can be reduced, and the formation of biofilm in the water reservoir 50 can be suppressed.

Before the drying mode, the water in the water reservoir 50 is drained from the drain port 25. The drying mode is not limited to draining all of the water in the water reservoir 50, but a drying mode in which only water droplets remain in the water reservoir 50 is permitted. Even in this case, it is possible to eliminate or reduce the amount of water droplets by using the drying mode, to reduce the number of bacteria remaining in the water reservoir 50, and to suppress the formation of biofilm. Even if such water droplets remain, the fresh water supplied in the cleaning mode executed before the drying mode (contains fewer bacteria than the water supplied in the deodorizing mode and after deodorizing) water) can easily remain, and biofilm formation can be suppressed.

After step S10, the process proceeds to step S11, where it is determined whether or not the fan device 60 continues to be driven for a certain period of time. If the fan device 60 continues to be driven for a certain period of time, the process proceeds to step S12, where the fan device 60 is stopped and the drying mode ends. Thereafter, the process returns to the standby state (step S1).

In step S11, if the fan device 60 continues to be driven for a certain period of time, the process advances to step S13. In step S13, if there is no detection of a person or sitting on the toilet seat by the detection means, the process advances to step S10 and the drying mode is continued.

In step S13, if the detection means detects a person or the person sitting on the toilet seat, the process proceeds to step S14. In step S14, if the detection means does not detect a person or sit on the toilet seat a predetermined number of times, the process proceeds to step S15, the drive of the fan device 60 is stopped, and the drying mode ends.

After that, the process advances to step S16, and the deodorizing mode is executed. That is, if a person is detected by the detection means or someone is seated on the toilet seat while the drying mode is being executed, the drive of the fan device 60 is stopped in step S15 to stop the drying mode, and the fan device 60 is stopped in step S16. S16 is driven, and water is supplied from the water supply section 27 to the water reservoir section 50 in step S17.

While the drying mode is running, there is less water in the water reservoir 50 than in the deodorizing mode, so the dust that is sucked in with the air is not captured by water and is removed from the water reservoir 50 on the downstream side of the deodorizing air passage 80. There are concerns that this could lead to an inflow into the country. Here, dust in the toilet space is more likely to be generated when the toilet is used by a person.

Therefore, by supplying water to the water reservoir 50 at a time when a person is detected in the toilet space and the amount of dust generated is likely to increase, the dust is supplemented with the water stored in the water reservoir 50, and the water reservoir is Inflow of dust to the downstream side of the deodorizing air passage 80 of the section 50 can be suppressed. Thereby, malfunction of the fan device 60 due to dust reaching the fan device 60 can be suppressed. Furthermore, it is possible to suppress a decrease in the performance of the oxidation catalyst 70 due to dust flowing into the oxidation catalyst 70.

In step S14, when the detection means detects a person or detects sitting on the toilet seat a predetermined number of times, the process proceeds to step S10, and the drying mode is continued. That is, when the detection means continues to detect the user a predetermined number of times during execution of the drying mode, the drying mode is continued. This can prevent insufficient drying due to an excessive increase in the number of times the drying mode is stopped. In step S14, when the detection means detects the user three times in a row, the drying mode is continued.

In the deodorizing mode, the drive of the fan device 60 is started in step S16, and in the next step S17, water supply from the water supply section 27 to the water reservoir section 50 is started, and water is supplied to the water reservoir section 50 by the action of the negative pressure described above. It can be accumulated. Note that in the deodorizing mode, the drive of the fan device 60 and the start of water supply may be started at the same time, or the drive of the fan device 60 may be started after the start of water supply. After a predetermined time from the start of water supply, the water supply is stopped in step S18.

After the water supply is stopped, the fan device 60 continues to be driven while the user is sitting on the toilet seat. That is, if it is not detected in the determination in step S20 that the user leaves the toilet seat, the loop of steps S19 and S20 is repeated, and the deodorizing mode is continued.

In step S20, when it is detected that the user leaves the toilet seat, the process proceeds to step S21, and the drive of the fan device 60 is stopped. As a result, water is drained from the water reservoir 50 in step S22. After this, the process returns to the standby state (step S1).

In step S2, if the detection means detects a person or the person sitting on the toilet seat, the process proceeds to step S16, and the deodorizing mode is executed.

It is desirable that the control unit 90 executes the drying mode during times when the toilet device 1 is not in use. The non-use time period can be defined as follows, for example. The control unit 90 divides one day (24 hours) into 32 units by dividing it into 45-minute units, and stores whether or not a person is detected by the detection means. The control unit 90 totals the number of times the detection means detects a person (the number of times the user uses the toilet device 1) over eight days in two units adjacent to each other (90 minutes). If the total number of times in 90 minutes is 0, the control unit 90 determines that it is a "non-use time period" when the user does not use the toilet device 1.

By executing the drying mode during the non-use period, that is, during the period when dust caused by the user is not generated, while suppressing the inflow of dust to the downstream side of the deodorizing air passage 80 of the water reservoir section 50, The water reservoir 50 can be dried.

It is desirable that the control unit 90 causes the fan device 60 to take in air at a first air volume in the deodorizing mode, and causes the fan device 60 to take in air at a second air volume that is less than the first air volume in the drying mode. As a result, in the deodorizing mode, the desired deodorizing effect is exhibited, while in the drying mode, the amount of dust sucked in is suppressed, and the inflow of dust to the downstream side of the deodorizing air passage 80 of the water reservoir section 50 is suppressed. The water reservoir 50 can be dried. For example, the first air volume is 0.03 to 0.2 m ³ /min, preferably 0.05 to 0.16 m ³ /min, and the second air volume is 0.01 to 0.05 m ³ /min. , preferably 0.03 to 0.05 m ³ /min.

It is preferable that the control unit 90 causes the fan device 60 to suck air for a first time period in the deodorizing mode, and causes the fan device 60 to suck air for a second time period, which is longer than the first time period, in the drying mode. Thereby, the reliability of sterilization can be improved. For example, the first period is 30 minutes to 90 minutes, preferably 50 minutes to 70 minutes, and the second period is 90 minutes to 270 minutes, preferably 120 minutes to 180 minutes.
Furthermore, by executing the drying mode during the second period of the non-use period, the water reservoir 50 can be further dried while suppressing the inflow of dust to the downstream side of the deodorizing air passage 80 of the water reservoir 50 to some extent. can.

By executing the drying mode following the cleaning mode, the control unit 90 can execute the drying mode with fewer bacteria remaining in the water reservoir 50, and can shorten the execution time of the drying mode. By shortening the execution time of the drying mode, the amount of dust sucked in can be suppressed, and the inflow of dust to the downstream side of the deodorizing air passage 80 of the water reservoir 50 can be suppressed.

In the embodiment described above, an example was explained in which the deodorizing device 10 was provided in the sanitary washing device 200, but the deodorizing device according to the present invention may be provided in a toilet space that includes at least one of a toilet bowl and a urinal. The deodorizing device may be provided, for example, in a urinal. In this case, the drain port is opened toward the bowl surface of the urinal, and water can be drained from the drain port to the bowl surface of the urinal.

Further, in the embodiment described above, an example was explained in which the fan device 60 was adopted as the negative pressure forming means, but the present invention is limited to forming negative pressure in the water reservoir section 50 by air suction by the fan device 60. First, the negative pressure forming means only needs to be able to form negative pressure in the water reservoir 50. For example, a pump may be employed as the negative pressure forming means, and negative pressure may be formed in the water reservoir portion 50 by air suction from the pump.

Further, the configuration is not limited to the configuration in which the intake port 23 also serves as the drain port 25, and the intake port 23 and the drain port 25 may be provided as separate components. When the intake port 23 also serves as the drain port 25, the functions of the present embodiment described above can be realized with a simpler structure than when the intake port 23 is provided separately.

In the embodiment described above, the water deodorizing section 40 has been described as having the water reservoir section 50 that can store water in the deodorizing air passage 80, but the present invention is not limited to this. 23 into the deodorizing air passage 80. Even in such a configuration, by executing the drying mode, bacteria remaining in the water deodorizing section can be reduced, and formation of biofilm in the water deodorizing section can be suppressed.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited thereto, and various modifications can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1... Toilet device, 10... Deodorizing device, 20... Water deodorizing unit, 23... Intake port, 24... Exhaust port, 25... Drain port, 27... Water supply part, 40... Water deodorizing part, 50... Water reservoir part, 60... Fan device, 80... Deodorizing air path, 90... Control unit, 100... Toilet bowl, 101... Bowl part, 200... Sanitary cleaning device

Claims (5)

A deodorizing device for a toilet space,
an intake part forming an intake port;
an exhaust part forming an exhaust port;
a fan device that sucks air from the intake port;
It is provided in a deodorizing air passage that connects the intake port and the exhaust port to circulate air, and is capable of storing water in the deodorizing air passage and/or spouting water into the air taken in from the air intake port. water deodorizing section,
a water supply unit that supplies water to the water deodorizing unit;
a drainage section forming a drainage port for discharging water from the water deodorizing section;
a control unit that controls water supply by the water supply unit and air intake by the fan device;
Equipped with
The control unit includes:
a deodorizing mode in which water is supplied by the water supply unit and air is taken in by the fan device to deodorize the water, and then the water is drained from the drain port;
a drying mode in which water supply by the water supply unit is stopped, the fan device is driven in a state where water is drained from the drain port, and the water deodorizing unit is dried;
Run
A deodorizing device for a toilet space, wherein in the deodorizing mode, the fan device takes in air at a first air volume, and in the drying mode, the fan device takes in air at a second air volume, which is less than or equal to the first air volume . A deodorizing device for a toilet space,
an intake part forming an intake port;
an exhaust part forming an exhaust port;
a fan device that sucks air from the intake port;
It is provided in a deodorizing air passage that connects the intake port and the exhaust port to circulate air, and is capable of storing water in the deodorizing air passage and/or spouting water into the air taken in from the air intake port. water deodorizing section,
a water supply unit that supplies water to the water deodorizing unit;
a drainage section forming a drainage port for discharging water from the water deodorizing section;
a control unit that controls water supply by the water supply unit and air intake by the fan device;
Equipped with
The control unit includes:
a deodorizing mode in which water is supplied by the water supply unit and air is taken in by the fan device to deodorize the water, and then the water is drained from the drain port;
a drying mode in which water supply by the water supply unit is stopped, the fan device is driven in a state where water is drained from the drain port, and the water deodorizing unit is dried;
Run
A deodorizing device for a toilet space, wherein in the deodorizing mode, the fan device performs air intake for a first time period, and in the drying mode, the fan device performs air intake for a second time period, which is longer than the first time period . A deodorizing device for a toilet space,
an intake part forming an intake port;
an exhaust part forming an exhaust port;
a fan device that sucks air from the intake port;
It is provided in a deodorizing air passage that connects the intake port and the exhaust port to circulate air, and is capable of storing water in the deodorizing air passage and/or spouting water into the air taken in from the air intake port. water deodorizing section,
a water supply unit that supplies water to the water deodorizing unit;
a drainage section forming a drainage port for discharging water from the water deodorizing section;
a control unit that controls water supply by the water supply unit and air intake by the fan device;
Equipped with
The control unit includes:
a deodorizing mode in which water is supplied by the water supply unit and air is taken in by the fan device to deodorize the water, and then the water is drained from the drain port;
a drying mode in which water supply by the water supply unit is stopped, the fan device is driven in a state where water is drained from the drain port, and the water deodorizing unit is dried;
Run
further executing a cleaning mode in which water is supplied from the water supply unit to clean the water deodorizing unit, and the drying mode is executed subsequent to the cleaning mode,
A deodorizing device for a toilet space, wherein the driving time of the fan device in the cleaning mode is shorter than the driving time of the fan device in the drying mode . A deodorizing device for a toilet space,
an intake part forming an intake port;
an exhaust part forming an exhaust port;
a fan device that sucks air from the intake port;
It is provided in a deodorizing air passage that connects the intake port and the exhaust port to circulate air, and is capable of storing water in the deodorizing air passage and/or spouting water into the air taken in from the air intake port. water deodorizing section,
a water supply unit that supplies water to the water deodorizing unit;
a drainage section forming a drainage port for discharging water from the water deodorizing section;
a control unit that controls water supply by the water supply unit and air intake by the fan device;
a detection means for detecting a user;
Equipped with
The control unit includes:
a deodorizing mode in which water is supplied by the water supply unit and air is taken in by the fan device to deodorize the water, and then the water is drained from the drain port;
a drying mode in which water supply by the water supply unit is stopped, the fan device is driven in a state where water is drained from the drain port, and the water deodorizing unit is dried;
Run
A deodorizing device for a toilet space, which stops the drying mode and supplies water from the water supply section when the detection means detects a user during the execution of the drying mode . 5. The deodorizing device for a toilet space according to claim 4 , wherein the control section causes the drying mode to continue if the detection means continues to detect the user a predetermined number of times during the drying mode.

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