JP2020063623A - Deodorization device for toilet space - Google Patents

Abstract

To provide a deodorization device for toilet space capable of effectively deodorizing both smell components having high water solubility and a smell component having a water solubility lower than the above-mentioned smell components but having high oxidation decomposability, while disposing a water deodorization part configured to store water and an oxidation catalyst in one air channel.SOLUTION: A deodorization device for toilet space comprises: a fan device which is provided within a deodorization air channel; a water storage part which is capable of storing water therein and in which a surface of the stored water forms a part of the deodorization air channel; an oxidation catalyst provided within the deodorization air channel; and a control part which controls water supply to the water storage part by a water supply part and suction by the fan device. The control part executes a first water supply mode in which water of a first water quantity is supplied to the water storage part and a second water supply mode in which water of a second water quantity less than the first water quantity is supplied to the water storage part.SELECTED DRAWING: Figure 7

Description

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

  2. Description of the Related Art As a deodorizing device for deodorizing in a toilet space, a device is known in which air is brought into contact with water to dissolve odorous components contained in the air (for example, Patent Document 1). The deodorizing device described in Patent Document 1 includes a water ejection device that is provided on a warm water washing toilet seat and ejects water to the air drawn into the gas flow path by the fan device.

JP, 2017-223030, A

  Of the odors in the toilet space, hydrogen sulfide and methyl mercaptan are less soluble in water than ammonia and trimethylamine. Therefore, there is a concern that hydrogen sulfide and methyl mercaptan may not be completely removed even if an odor is to be removed from the air with only water ejected by a water ejection device as in Patent Document 1.

  Here, in solving this concern, by arranging a water deodorizing section and an oxidation catalyst in one air passage, an odor component having a high water solubility and an odor component having a low water solubility but a high oxidative decomposability than these odor components are arranged. It is considered that both are effectively deodorized.

  When arranging the water deodorizing part and the oxidation catalyst in one air passage, if the water is stored as the water deodorizing portion, the deodorizing air passage is narrowed by the accumulated water, resulting in pressure loss in the deodorizing air passage. Will increase. Due to this increase in pressure loss, the deodorizing performance of the oxidation catalyst may be reduced.

  Therefore, according to the present invention, a water-deodorizing portion configured to store water and an oxidation catalyst are arranged in one air passage, and an odor component having a high water solubility and an oxidative decomposability which is lower in water solubility than these odor components To provide a deodorizing device for a toilet space capable of effectively deodorizing both high-odor components.

A deodorizing device for a toilet space according to a first aspect of the present invention includes an air intake part that forms an air intake port that intakes air, an exhaust part that forms an exhaust port that exhausts air, and an air passage that connects the intake port and the exhaust port. A fan device provided in the deodorizing air passage for circulating the water, a water reservoir capable of accumulating water, and the water surface of the accumulated water forming a part of the deodorizing air passage, and the deodorizing air passage in the deodorizing air passage. An oxidation catalyst provided, a water supply unit that supplies water to the water reservoir, a drainage unit that drains water from the water reservoir, water supply by the water supply unit, and a control unit that controls intake by the fan device. The control unit includes a first water supply mode in which the water supply unit supplies a first amount of water to the water reservoir, and a second water amount that is less than the first water amount supplied to the water reservoir by the water supply unit. A second water supply mode for supplying water is executed.
According to the first aspect of the present invention, in the second water supply mode, the amount of water stored in the water reservoir is smaller than that in the first water supply mode, so pressure loss in the deodorizing air passage can be suppressed, and the deodorizing performance by the oxidation catalyst is improved. It is possible to prevent the decrease.
On the other hand, in the first water supply mode, a larger amount of water than in the second water supply mode is stored in the water reservoir, and the deodorizing effect of highly water-soluble odorous components is enhanced.
Therefore, according to the first aspect of the present invention, it is possible to effectively deodorize both an odor component having high water solubility and an odor component having lower water solubility but higher oxidative decomposition than these odor components.
In a second aspect based on the first aspect, the control section uses a first air intake mode in which the fan unit inhales a first air volume that is a maximum air volume, and an intake air volume that is smaller than the first air volume. The second intake mode is performed, and the first intake mode is not executed when the first water supply mode is executed.
For deodorizing highly water-soluble odorous components, it is better to use a large amount of water, but the larger the amount, the more water may overflow from the water reservoir. According to the second aspect of the invention, in the first water supply mode in which the amount of water is large, the second intake mode in which the second amount of air is smaller than the first amount of air which is the maximum amount of air is executed, and the first intake mode of maximum amount of air is executed. do not do. When the amount of water is large, it is possible to suppress the ripples of water accumulated in the water reservoir and the suction of water into the fan device by suppressing the amount of air. Therefore, when the amount of water is increased in order to enhance the water deodorizing effect, overflow of water can be suppressed, while the first intake mode can be executed while suppressing the pressure loss in the second water supply mode, and the amount of air can be increased. The deodorizing effect of the oxidation catalyst can be enhanced.
In a third aspect based on the second aspect, the control section executes a third intake mode in which the fan device inhales a third air volume that is smaller than the second air volume, and executes the first water supply mode. At times, the third intake mode is executed.
According to the third aspect of the invention, in the first water supply mode in which the amount of water is large, the third intake mode in which the third air amount is smaller than the second air amount is executed, and the first intake mode of maximum air amount is not executed. When the amount of water is large, by further suppressing the amount of air, it is possible to further increase the effect of suppressing the ripples of water accumulated in the water reservoir and the suction of water by the fan device.
In a fourth aspect based on any one of the first to third aspects, the control unit executes a drying mode in which the fan device is driven and the water reservoir is dried after draining from the drainage unit. .
There is a concern that a biofilm may be formed in a structure that stores water for deodorizing highly water-soluble odorous components. According to the fourth aspect of the invention, by executing the drying mode, it is possible to dry the water reservoir after being drained, and it is possible to suppress the formation of a biofilm in the water reservoir.

  According to the deodorizing device for a toilet space of the present invention, a water-deodorizing portion configured to store water and an oxidation catalyst are arranged in one air passage, and a highly water-soluble odor component and a water-soluble odor component that is more water-soluble than these odor components are disposed. It is possible to effectively deodorize both odor components having a low but high oxidative decomposition property.

It is a perspective view of the toilet device of one embodiment. It is a perspective view of the water deodorizing unit of one embodiment. It is a perspective view of the state which removed the cover from the water deodorizing unit of FIG. It is sectional drawing of the water deodorizing unit of one embodiment. It is a schematic cross section at the time of water storage operation in the water deodorizing unit of one embodiment. It is a schematic cross section at the time of drainage operation in a water deodorizing unit of one embodiment. It is a flowchart of the operation example of the toilet space deodorizing apparatus of one embodiment. It is a flowchart of the other operation example of the deodorizing device for toilet spaces of one embodiment.

  Hereinafter, one of the embodiments 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 the drawings are denoted by the same reference symbols as much as possible, and redundant description will be omitted.

  FIG. 1 is a perspective view of a toilet device 1 of the embodiment.

  As shown in FIG. 1, the toilet device 1 installed in the toilet space includes a seated toilet (hereinafter, simply referred to as a toilet) 100 and a sanitary washing device 200 installed on the toilet 100. The toilet bowl 100 has a bowl portion 101 that opens upward and stores water. The bowl portion 101 is washed with washing water when a user operates an operating portion (not shown), and the washing water is drained to a drain pipe (not shown). The sanitary washing device 200 includes a local washing function unit that realizes washing of the local area of the user's buttocks sitting on the toilet bowl 100. Note that, in FIG. 1, nozzles and the like included in the local cleaning function unit are not shown and omitted.

  Further, the sanitary washing device 200 includes a deodorizing device for toilet space (hereinafter, simply referred to as a deodorizing device) 10. The deodorizing device 10 includes a water deodorizing unit 20 and a controller 90.

FIG. 2 is a perspective view of the water deodorizing unit 20 of the embodiment.
FIG. 3 is a perspective view of the water deodorizing unit 20 of FIG. 2 with the cover 22 removed.
FIG. 4 is a cross-sectional view of the water deodorizing unit 20.

  As shown in FIGS. 2 to 4, the water deodorizing unit 20 has a case 21 and a cover 22. A water deodorizing unit 40, a fan device 60, and an oxidation catalyst 70 are provided in the space between the case 21 and the cover 22.

  By driving the fan device 60, air flows in the space between the case 21 and the cover 22. An intake port 123 is provided at one end of an air passage (deodorizing air passage) 80 through which this air flows, and an exhaust outlet 124 is provided at the other end. The intake port portion 123 forms the intake port 23, and the exhaust port portion 124 forms the exhaust port 24. The deodorizing air passage 80 connects the intake port 23 and the exhaust port 24. Further, as will be described later, the intake port 23 also serves as the drain port 25. A region of the deodorizing air passage 80 other than the intake port 23 and the exhaust port 24 is covered with the case 21 and the cover 22.

  The intake port 23 is located at the most upstream of the deodorizing air passage 80, and the exhaust port 24 is located at the most downstream of the deodorizing air passage 80. The fan device 60 is arranged downstream of the water deodorizing section 40 in the deodorizing air passage 80. The oxidation catalyst 70 is arranged downstream of the fan device 60 in the deodorizing air passage 80. A water deodorizing unit 40, a fan device 60, and an oxidation catalyst 70 are arranged between the intake port 23 and the exhaust port 24 in order from the intake port 23 side.

  The water deodorizing section 40 has a water storage section 50. The water reservoir 50 is located between the intake port 23 and the fan device 60. When the water deodorizing unit 20 is installed on the toilet bowl 100 shown in FIG. 1, the intake port 23 opens toward the bowl portion 101. By driving the fan device 60, air is sucked into the water reservoir 50 from the intake port 23.

  For example, the water supply unit 27 is provided near the drain port 25 on the inner side surface of the case 21. As shown in FIG. 4, the water supply unit 27 is, for example, a water supply nozzle having a water supply port 27a. In the state where the water deodorizing unit 20 is installed on the toilet 100 shown in FIG. 1, the water supply part 27 is located outside the water sump part 50 and above the opening of the bowl part 101. As shown in FIG. 4, the drain port 25 is located between the water reservoir 50 and the water supply unit 27. The water supply unit 27 is provided at a position on the opposite side of the water reservoir 50 with the drainage port 25 interposed therebetween, and at a position where water can be supplied from the water supply unit 27 to the water reservoir 50.

  The water supply port 27 a of the water supply unit 27 is directed to the drainage port 25. Water is supplied from the water supply port 27a to the water reservoir 50 through the drainage port 25, and the water reservoir 50 can store the water.

  The water stored in the water storage unit 50 is drained from the drainage unit 125 forming the drainage port 25. In this embodiment, the intake port 23 also serves as the drain port 25. The drainage port 25 opens toward the bowl unit 101 that is a drainage receiving unit, and the water stored in the water pool unit 50 is drained from the drainage port 25 to the bowl unit 101.

  A water receiving wall 41 is provided on the side of the fan device 60 in the water reservoir 50. The water receiving wall 41 projects from the bottom surface of the water reservoir 50 into the deodorizing air passage 80. A space is formed between the upper end of the water receiving wall 41 and the cover 22 to allow air to flow from the water reservoir 50 to the fan device 60 side. The water reservoir 50 has a bottom surface 51 that is inclined downward along the direction from the water receiving wall 41 to the drainage port 25.

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

  When the user's seating on the toilet 100 shown in FIG. 1 is detected, the fan unit 60 is driven by the control of the control unit 90, and water is supplied from the water supply unit 27 to the water reservoir 50. From the water supply port 27a of the water supply unit 27 shown in FIG. 4, water is discharged toward the drainage port 25 as indicated by the arrow, and water is supplied to the water reservoir 50 through the drainage port 25.

  For example, the driving of the fan device 60 and the water supply from the water supply unit 27 are simultaneously started. Alternatively, there may be a time lag between the drive timing of the fan device 60 and the water supply timing. 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 suction port 23.

  FIG. 5 is a schematic cross-sectional view at the time of the water storage operation in this embodiment.

  In FIG. 5, the flow of air in the deodorizing air passage 80 is indicated by a thick black arrow. The air sucked from the intake port 23 flows through the space of the water reservoir 50 and is sucked into the fan device 60, and the air discharged from the fan device 60 passes through the oxidation catalyst 70 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. That is, the fan device 60 functions as a negative pressure forming unit that generates a negative pressure in the deodorizing air passage 80. Since the bottom surface 51 of the water reservoir 50 forms a downward slope toward the drain outlet 25, the water supplied to the water reservoir 50 can flow through the bottom surface 51 of the water reservoir 50 toward the drain outlet 25. .

  However, when the fan device 60 is driven, the negative pressure generated in the water reservoir 50 presses the air flowing in the direction counter to the drainage direction of the water against the water, so that the water supplied from the water supply unit 27 becomes the water. It can be stored in the storage part 50. The water W pushed by the air is dammed by the water receiving wall 41 and is blocked from moving to the downstream side in the deodorizing air passage 80. Water supply from the water supply unit 27 is stopped after a predetermined time.

  The air sucked from the intake port 23 and containing the odorous component flows along the water surface of the water W stored in the water reservoir 50, and the water surface of the water W stored in the water reservoir 50 forms the deodorizing air duct 80. Form part. Then, among the odorous components, highly water-soluble odorous components such as ammonia and trimethylamine are dissolved in the water W stored in the water reservoir 50 to be deodorized.

  Odor components such as hydrogen sulfide and methyl mercaptan which are not dissolved in the water W in the air flowing further downstream in the deodorizing air passage 80 are deodorized by the oxidation catalyst 70. The oxidation catalyst 70 oxidizes and decomposes hydrogen sulfide and methyl mercaptan.

  As described above, according to the present embodiment, the water deodorizing unit 40 can deodorize highly water-soluble ammonia and trimethylamine, and further, the oxidation catalyst 70 causes hydrogen sulfide and methyl mercaptan that are less soluble in water than ammonia and trimethylamine. Can be deodorized. The deodorized air is exhausted from the exhaust port 24.

  Further, dust such as dust and paper dust sucked together with air from the intake port 23 can be captured by the water W stored in the water reservoir 50, and the oxidation catalyst 70 due to the dust flowing to the oxidation catalyst 70. It is possible to suppress the performance degradation. Furthermore, since the fan device 60 is also arranged on the downstream side of the deodorizing air passage 80 with respect to the water reservoir 50, it is possible to prevent dust from reaching the fan device 60. Further, normally, a mesh filter for supplementing dust is provided at the intake port of the deodorizing device, but in the present embodiment, the dust can be supplemented by the water reservoir portion 50, and it is not necessary to provide the mesh filter. Good. Therefore, in the present embodiment, it is possible to eliminate the trouble of maintaining the mesh filter.

  Further, due to the simple configuration in which the water deodorizing section 40 and the oxidation catalyst 70 are arranged in one deodorizing air passage 80 using one fan device 60, the odorous components having high water solubility and the water solubility lower than those odorous components are low. It is possible to effectively deodorize both odorous components having high oxidative decomposition. It is possible to achieve both suppression of size increase and complexity and deodorizing performance.

  Further, the water W is stored in the water reservoir 50 by the formation of the negative pressure accompanied by the flow of air, the water surface of the water W forms a part of the deodorizing air passage 80, and the odorous components are included along the water surface of the water W. The air flows. In such a configuration, for example, rather than storing water by forming a negative pressure, water is stored in a tank in advance, and the amount of air contacting the water surface is larger than the configuration in which air is brought into contact with the surface of the stored water. It is possible to improve the efficiency of dissolving odorous components in water. Therefore, the present embodiment makes it possible to suppress the increase in size and complexity and the deodorizing performance at the same time.

  FIG. 6 is a schematic cross-sectional view of the present embodiment during the drainage operation.

  The user separates from the toilet bowl 100, and the drive of the fan device 60 is stopped based on the separation. When the fan device 60 is stopped, the water reservoir 50 returns to the atmospheric pressure, and the force that holds the water W in the accumulated state is released. Since the bottom surface 51 of the water reservoir 50 is inclined downward toward the drain outlet 25, the water W accumulated in the water reservoir 50 flows from the drain outlet 25 to the toilet 100 as shown in FIG. It is drained to the bowl portion 101 (shown in FIG. 1). Further, dust and the like trapped in the water W stored in the water reservoir 50 is also drained together with the water W.

  When a movable member such as a solenoid valve is used as the drainage mechanism, there is a concern that valve opening failure may occur due to sticking of the solenoid valve, and drainage may not be possible. However, in the present embodiment, the fan device 60 is not provided with such a drainage mechanism. It can be drained simply by stopping the formation of negative pressure. Water can be drained from the water reservoir 50 with a simple configuration to reduce the amount of water remaining in the water reservoir 50, and the formation of biofilms due to the remaining water can be suppressed.

  The control unit 90 described above executes the first water supply mode and the second water supply mode. In the first water supply mode, the water supply unit 27 supplies the first amount of water to the water reservoir 50. In the second water supply mode, the water supply unit 27 supplies water to the water reservoir 50 with a second water amount smaller than the first water amount.

  Further, the control unit 90 executes the first intake mode and the second intake mode. In the first intake mode, the fan device 60 inhales the first air volume, which is the maximum air volume. In the second intake mode, the fan device 60 intakes a second air volume that is smaller than the first air volume. The rotation speed of the fan device 60 in the second intake mode is lower than the rotation speed of the fan device 60 in the first intake mode.

  Further, the control unit 90 can also execute the third intake mode in which the fan device 60 inhales a third air volume that is smaller than the second air volume.

  FIG. 7 is a flowchart of a detailed operation example of the deodorizing device 10.

  For example, when the toilet device 1 is often used, in step S1, when no person is detected in the toilet space or sitting on the toilet seat is detected, that is, when the toilet device 1 is not used is detected. The process proceeds to step S8, and the non-use deodorizing mode is executed.

  In the non-use deodorizing mode, when the toilet device 1 is not used in a time period when the toilet device 1 is frequently used, the first water supply mode with the first water amount and the second intake mode with the second air amount are executed. In the deodorizing mode when not in use, the water having a first amount of water larger than the second amount of water is stored in the water storage unit 50, and water deodorization of highly water-soluble components such as ammonia and trimethylamine mainly adsorbed on the wall of the toilet space is performed. The effect can be enhanced.

  In step S9, when the non-use deodorizing mode is executed and a certain period of time has not elapsed, if there is a person detection or seating detection in step S1, that is, if the use of the toilet device 1 is detected, step S2 Proceed to drainage mode.

  In the drainage mode, the fan device 60 is stopped, and the negative pressure is released by this, so that the water stored in the water reservoir 50 in the non-use deodorizing mode is drained from the drainage port 25.

  After this drainage operation, the process proceeds to step S3, and the normal deodorizing mode is executed. Alternatively, when the fan device 60 is stopped at the timing when the use of the toilet device 1 is detected in step S1 and water is not accumulated in the water reservoir 50, the process proceeds to step S3 after step S1.

  In the normal deodorization mode of step S3, the second water supply mode by supplying the second amount of water and the second intake mode by the second air amount are executed.

  Then, when the separation is detected in step S4, the process proceeds to step S5, and the strong deodorizing mode is executed. In the strong deodorization mode, the second water supply mode by supplying the second amount of water and the first intake mode by the first air amount that is the maximum air amount are executed.

  That is, in the strong deodorizing mode, the amount of water stored in the water reservoir 50 is the same second amount of water as in the normal deodorizing mode, but the air amount is set to the first air amount (maximum air amount) larger than that in the normal deodorizing mode. Therefore, in the strong deodorization mode, the deodorization effect of hydrogen sulfide and methyl mercaptan by the oxidation catalyst 70 is higher than that in the normal deodorization mode.

  In the step S4, when the sitting is not detected, that is, when the user is still sitting, the normal deodorizing mode of the step S3 is continued.

  The strong deodorization mode is executed for a predetermined time. After the strong deodorization mode ends, in step S6, the fan device 60 is stopped and the drainage operation is performed from the water reservoir 50.

  After this draining operation, the drying mode is executed in step S7. In the dry mode, the water supply to the water reservoir 50 is stopped, the fan device 60 is driven, and the second intake mode with the second air volume is executed. The water reservoir 50 is dried by the air circulation in the second intake mode.

  If there is no human detection or seating detection before the execution of the non-use deodorization mode for a certain period of time, the non-use deodorization mode continues to be executed.

  When the non-use deodorizing mode has been executed for a certain period of time, the process proceeds to step S10, the drainage mode is executed, and the drying mode is executed in step S7.

  FIG. 8 is a flowchart of another detailed operation example of the deodorizing device 10.

  In the time period when the toilet device 1 is frequently used, in step S11, when no person is detected in the toilet space or sitting on the toilet seat is detected, that is, when the state that the toilet device 1 is not used is detected, In step S18, the deodorizing mode when not in use is executed.

  In the non-use deodorization mode, when the toilet device 1 is not used in a time period when the toilet device 1 is frequently used, the first water supply mode with the first water amount and the third intake air with the third air amount smaller than the second air amount. Run the mode.

  In step S19, when the non-use deodorizing mode is executed and a certain period of time has not elapsed, when there is a person detection or seating detection in step S11, that is, when the use of the toilet device 1 is detected, step S12 Proceed to drainage mode.

  In the drainage mode, the fan device 60 is stopped, and the negative pressure is released by this, so that the water stored in the water reservoir 50 in the non-use deodorizing mode is drained from the drainage port 25.

  After this drainage operation, the process proceeds to step S13, and the normal deodorizing mode is executed. Alternatively, when the fan device 60 is stopped at the timing when the use of the toilet device 1 is detected in step S11 and water is not accumulated in the water reservoir 50, the process proceeds to step S13 after step S11.

  In the normal deodorization mode of step S13, the second water supply mode by supplying the second amount of water and the second intake mode by the second air amount are executed.

  Then, when the separation is detected in step S14, the process proceeds to step S15, and the strong deodorizing mode is executed. In the strong deodorization mode, the second water supply mode by supplying the second amount of water and the first intake mode by the first air amount that is the maximum air amount are executed.

  In the step S14, when the separation is not detected, that is, when the user is still sitting, the normal deodorizing mode in step S13 is continued.

  The strong deodorization mode is executed for a predetermined time. After the strong deodorization mode ends, in step S16, the fan device 60 is stopped and the drainage operation is performed from the water reservoir 50.

  After this draining operation, the drying mode is executed in step S17. In the dry mode, the water supply to the water reservoir 50 is stopped, the fan device 60 is driven, and the third intake mode with the third air volume is executed. The water reservoir 50 is dried by the air circulation in the third intake mode.

  If there is no human detection or seating detection before the execution of the non-use deodorization mode for a certain period of time, the non-use deodorization mode continues to be executed.

  When the non-use deodorizing mode has been executed for a certain period of time, the process proceeds to step S20, the drainage mode is executed, and further in step S17, the drying mode is executed.

  According to the embodiment described above, in the second water supply mode executed in the normal deodorization mode and the strong deodorization mode, the amount of water stored in the water reservoir 50 is smaller than that in the first water supply mode, so the pressure in the deodorization air passage 80 is reduced. The loss can be suppressed, and the deterioration of the deodorizing performance of the oxidation catalyst 70 can be suppressed.

  On the other hand, in the first water supply mode executed in the non-use deodorizing mode, a larger amount of water is stored in the water reservoir 50 than in the second water supplying mode, and the deodorizing effect of the odorous component having high water solubility is enhanced.

  Therefore, according to the present embodiment, it is possible to effectively deodorize both an odor component having high water solubility and an odor component having lower water solubility but higher oxidative decomposition than these odor components.

  A large amount of water is preferable for deodorizing a highly water-soluble odorous component, but there is a concern that water will overflow from the water reservoir 50 as the amount of water increases. According to the operation example shown in FIG. 7, in the first water supply mode in which the amount of water is large (in the deodorizing mode when not in use), the second intake mode in which the air amount is smaller than the maximum air amount is executed, and the first intake amount of the maximum air amount is increased. Do not run mode. When the amount of water is large, by suppressing the amount of air flow, it is possible to prevent the water accumulated in the water reservoir 50 and the suction of the water in the fan device 60. Therefore, when the amount of water is increased to enhance the water deodorizing effect, the overflow of water can be suppressed, while in the normal or strong deodorizing mode, the first intake mode is executed while suppressing the pressure loss in the second water supply mode, and the air volume is reduced. And the deodorizing effect of the oxidation catalyst 70 can be enhanced.

  In the operation example shown in FIG. 8, the third intake mode in which the air volume is smaller than the second air volume is executed during the first water supply mode in which the water volume is large (in the deodorizing mode when not in use), and the maximum air volume The first intake mode is not executed. When the amount of water is large, the effect of suppressing the ripples of the water stored in the water reservoir 50 and the suction of the water into the fan device 60 can be further enhanced by further suppressing the air flow.

  There is a concern that a biofilm may be formed in a structure that stores water for deodorizing highly water-soluble odorous components. On the other hand, according to the present embodiment, by performing the drying mode in step S7 in FIG. 7 or step S17 in FIG. 8, the water reservoir 50 after being drained can be dried, and the water reservoir 50 can be dried. It is possible to prevent the formation of biofilm in the.

  The above-described modes shown in FIGS. 7 and 8 are executed by the control of the fan device 60 by the control unit 90 and the control of the water supply unit 27. That is, the control unit 90 executes the intake mode of the two-stage or three-stage air volume. Alternatively, the control unit 90 may execute the intake mode with four or more stages of air volume. In addition, the control unit 90 executes a water supply mode with two levels of water. Alternatively, the control unit 90 may execute the water supply mode with three or more water levels.

  In the embodiment described above, the example in which the deodorizing device 10 is provided in the sanitary washing device 200 has been described, but the deodorizing device according to the present invention may be provided in the toilet space including the toilet bowl, and the deodorizing device 10 may be, for example, a toilet bowl. It may be provided within 100.

  Further, the present invention is not limited to forming the negative pressure in the water reservoir 50 by the air suction of the fan device 60, and may form the negative pressure in the water reservoir 50 by the air suction of the pump, for example.

  Further, the present invention 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 constituent elements.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these, 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 ... Drainage port, 27 ... Water supply part, 40 ... Water deodorizing part, 50 ... Water storage part, 60 ... Fan device, 70 ... Oxidation catalyst, 80 ... Deodorizing air passage, 90 ... Control part, 100 ... Toilet bowl, 101 ... Bowl part, 200 ... Sanitary washing device

Claims (4)

An intake part forming an intake port for intake of air,
An exhaust part forming an exhaust port for exhausting air,
A fan device provided in a deodorizing air passage for communicating air through the intake port and the exhaust port,
It is possible to store water, and the water surface of the stored water forms a part of the deodorizing air passage, and
An oxidation catalyst provided in the deodorizing air passage,
A water supply section for supplying water to the water reservoir section,
A drainage part for draining from the water reservoir part,
A controller that controls water supply by the water supply unit and intake by the fan device;
Equipped with
The control unit supplies a first water supply mode in which the water supply unit supplies water to the water reservoir with a first amount of water, and a second water amount less than the first water amount supplied to the water reservoir by the water supply unit. A deodorizing device for a toilet space that executes a second water supply mode to be performed. The control unit executes a first intake mode in which the fan device inhales a first air amount, which is the maximum air amount, and a second intake mode in which a second air amount smaller than the first air amount is inhaled.
The deodorizing device for toilet space according to claim 1, wherein the first intake mode is not executed when the first water supply mode is executed. The control section executes a third intake mode in which the fan device inhales a third air volume smaller than the second air volume,
The deodorizing device for toilet space according to claim 2, wherein the third intake mode is executed when the first water supply mode is executed.   The deodorizing device for toilet space according to any one of claims 1 to 3, wherein the control unit executes a drying mode in which the fan device is driven and the water reservoir is dried after draining from the drainage unit.

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