JP3741980B2 - Hot air deodorizer for toilet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot air deodorizing apparatus for toilets provided in a local cleaning apparatus.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a warm air deodorizing apparatus for toilets is known as one apparatus for a local cleaning apparatus provided in a flush toilet, for drying a user's local area and deodorizing a toilet bowl. This toilet warm air deodorization apparatus includes a housing having an air inlet, a hot air outlet, and an exhaust port, and a motor, a fan, a heating unit, and a deodorizing unit provided in the housing. The housing has a hot air flow path that connects the air inlet and the hot air outlet via a fan and heating means, and a deodorization flow path that connects the air inlet and the exhaust port via a fan and deodorizing means. is doing.
[0003]
In this hot air deodorizing apparatus for toilets, warm air can be blown out from a hot air blower outlet toward a user's local part by heating air with a heating means and rotationally driving a fan with a motor. Further, by rotating the fan by a motor, the odor in the toilet bowl can be sucked from the air inlet, and the odor can be deodorized by the deodorizing means and exhausted from the exhaust port.
[0004]
As such a warm air deodorizing device for toilets, a device described in JP-A-7-62704 is known. In this hot air deodorizing apparatus for toilets, the motor is rotatable in both forward and reverse directions, and a damper is provided at each of the exhaust port and the hot air outlet. Depending on the motor rotation direction and damper switching, it is possible to select whether to send hot air through the hot air flow path to the hot air outlet or to exhaust through the deodorization flow path to the exhaust port. It is said that. For this reason, in this warm air deodorizing apparatus for toilets, it is possible to perform blowing of hot air and deodorizing with one motor and one fan in common, and deodorizing with a motor and fan for blowing warm air Therefore, the number of parts can be reduced, and the cost and space can be saved.
[0005]
[Problems to be solved by the invention]
However, in the conventional hot air deodorizing apparatus for toilets, the hot air flow path and the deodorizing flow path are configured in parallel in the housing, and the two dampers are switched, so that the hot air flow path or the deodorizing apparatus is switched. The flow of warm air or odor is switched by blocking one of the flow paths. If this is the case, both the hot air flow path and the deodorization flow path become narrow, so the resistance of each of the hot air flow path and the deodorization flow path increases, and the hot air or odor The flow rate of will be reduced. For this reason, it is difficult to secure a sufficient amount of hot air to dry the user's local area, or the odor stored in the toilet bowl is not easily deodorized.
[0006]
In addition, since this hot air deodorization apparatus for toilets employs two dampers, it still has a large number of parts, and is still not satisfactory in terms of cost reduction and space saving.
[0007]
The present invention has been made in view of the above circumstances, and can secure a sufficient amount of warm air to dry the user's local area and can sufficiently deodorize the odor stored in the toilet bowl. It is an issue to be solved to provide a warm air deodorizing apparatus for toilets which is effective and has a large effect of low cost and space saving.
[0008]
[Means for Solving the Problems]
A warm air deodorizing device for a toilet of the present invention comprises a housing having an air inlet, a hot air outlet, and an exhaust port, and a motor, a fan, a heating means, and a deodorizing means provided in the housing. By rotating and driving, it is possible to blow warm air formed by heating the air by the heating means from the hot air outlet toward the user's local area, and inhale the odor in the toilet bowl from the inlet, In the hot air deodorization device for toilets, which can deodorize the odor by means of deodorization and exhaust it from the exhaust port.
The housing has a hot air flow path that connects the intake port and the hot air outlet through the fan and the heating unit, and the intake port and the exhaust port through the fan and the deodorizing unit. And a deodorizing flow path that communicates,
A single damper that switches communication between the intake port to the hot air flow path and communication to the deodorization flow path according to the normal rotation speed of the motor;
And a control means capable of changing the normal rotation speed.
[0009]
In the hot air deodorization apparatus for toilets according to the present invention, a single damper switches whether the intake port communicates with the hot air flow path or the intake port communicates with the deodorization flow path depending on the normal rotation speed of the motor. . In this manner, the hot air flow path and the deodorization flow path can be configured as one flow path in the housing. For this reason, both the hot air flow path and the deodorizing flow path are not narrowed, the flow resistance of each of the hot air flow path and the deodorizing flow path is not increased, and the flow rate of the hot air or odor is increased. For this reason, a sufficient amount of warm air to dry the user's local area is secured, and the odor stored in the toilet bowl is sufficiently deodorized.
[0010]
Moreover, in this warm air deodorizing apparatus for toilets, since the single damper is employ | adopted, a number of parts can be reduced and cost reduction and space saving can be implement | achieved.
[0011]
Therefore, in the hot air deodorization device for toilet of the present invention, it is possible to secure a sufficient amount of hot air to dry the user's local area, and sufficiently deodorize the odor stored in the toilet bowl, In addition, low cost and space saving can be further exhibited.
[0012]
In the warm air deodorizing apparatus for a toilet of the present invention, while the damper communicates the air inlet with the hot air flow path, the air intake can communicate with the deodorizing flow path. If it is like this, the air inhaled from the air inlet will flow into both the hot air flow path and the deodorization flow path. For this reason, a user's local drying and odor deodorization can be performed simultaneously.
[0013]
In the hot air deodorization device for a toilet of the present invention, the damper communicates the air inlet with the deodorizing flow path if the air volume by the fan is small, and if the air volume by the fan is large, the damper opens the air inlet to the hot air flow path and deodorizing device. It can be made to communicate with a flow path. Thus, it is sufficient that the damper that is automatically opened and closed by the air flow from the fan is simply swingably locked to the housing, and the manufacturing cost can be reduced.
[0014]
In the warm air deodorizing apparatus for toilet according to the present invention, it is preferable that the control means causes the motor to rotate normally at least while the user is using the toilet. If it is like this, since the inside of a toilet bowl will be continuously deodorized during use of the user, the user can avoid the unpleasant feeling by smelling an odor reliably.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which a warm air deodorizing apparatus for toilets according to the present invention is embodied as a Western style flush toilet will be described with reference to the drawings.
[0016]
As shown in FIG. 1, a Western-style flush toilet 10 installed in a toilet room is composed of a ceramic-made Western-style toilet body 12 and a cleaning device 18 provided on the Western-style toilet body 12. The cleaning device 18 includes a toilet seat 14 that can swing on the Western-style toilet main body 12, and a toilet lid 16 that can swing on the toilet seat 14. Further, the cleaning device 18 is provided with a human body detection sensor 18a and a seating detection sensor 18b, and as shown in FIG. 2, the temperature of the toilet bowl fixed on the Western-style toilet body 12 via a base plate (not shown). A wind deodorizing device 20 is provided.
[0017]
As shown in FIG. 3, the toilet warm air deodorizer 20 includes an L-shaped housing 21 in plan view. Both ends of the housing 21 form an exhaust port 22 and a hot air outlet 26 between the base plate, and a portion bent in an L shape of the housing 21 forms an air inlet 23 between the base plate. In the housing 21, a hot air flow path 28 that communicates the intake port 23 and the warm air outlet 26, and a deodorization flow path 24 that communicates the intake port 23 and the exhaust port 22 are formed.
[0018]
A motor M is provided outside the housing 21 at a boundary portion between the hot air flow path 28 and the deodorization flow path 24. The motor M includes a motor M as shown in FIGS. A control device C is connected as a control means capable of controlling the normal rotation speed. The control device C is also connected to the human body sensor 18a and the seat sensor 18b shown in FIG. As shown in FIGS. 3 to 5, a fan 25 is provided in the housing 21 at the boundary portion between the hot air flow path 28 and the deodorization flow path 24. The disc 25a is supported by the shaft O, and a plurality of fins 25b each having one end fixed to the periphery of the disc 25a. The air inlet 23 opens into each fin 25 b of the fan 25.
[0019]
A plate-like damper 27 is provided in the housing 21 on the side of the hot air outlet 26 of the fan 25, and the damper 27 can swing by its own weight by a pivot provided at the upper end. Further, a heater 29 as a heating means is provided in the housing 21 on the side of the hot air outlet 26 of the damper 27. The heater 29 is connected to a power source (not shown). For this reason, the hot air flow path 28 is communicated from the air inlet 23 to the hot air outlet 28 via the fan 25, the damper 27 and the heater 29.
[0020]
Further, a deodorizing filter F as a deodorizing means is provided in the housing 21 on the exhaust port 22 side of the fan 25. For this reason, the deodorizing flow path 24 communicates from the intake port 23 to the exhaust port 22 via the fan 25 and the deodorizing filter F.
[0021]
As shown in FIG. 2, the warm air deodorizing device 20 for the toilet includes a hot air outlet 26 disposed in the toilet bowl 12 a of the western-style toilet body 12, and an exhaust port 22 disposed on the side surface of the cleaning device 18.
[0022]
As for the warm air deodorizing apparatus 20 for toilets comprised as mentioned above, the control apparatus C controls based on the flowchart shown in FIG. First, in step S1, if the human body detection sensor 18a detects the user immediately before the Western style flush toilet 10, the process proceeds to step S2 and the first deodorization mode is executed. On the other hand, if the human body detection sensor 18a does not detect the user immediately before the Western-style flush toilet 10 in step S1, the process ends.
[0023]
In the first deodorization mode of step S2, the odor remaining in the toilet bowl 12a is deodorized. That is, as shown in FIG. 7, the forward rotation speed of the motor M is increased to the G2 value by the control device C, and the fan 25 rotates forward at that rotation speed. At this time, since the forward rotation speed of the fan 25 is small, the amount of air hitting the damper 27 is small and the damper 27 does not swing. For this reason, as shown in FIG. 4, the damper 27 allows the intake port 23 to communicate only with the deodorizing flow path 24. For this reason, the odor in the toilet bowl 12 a sucked from the air inlet 23 is deodorized by the deodorizing filter F and exhausted from the exhaust port 22.
[0024]
Next, in step S3 shown in FIG. 6, if the seating sensor 18b detects the seating of the user, the process proceeds to step S4, where the first deodorization mode is terminated and the second deodorization mode is executed. On the other hand, if the seating sensor 18b does not detect the seating of the user in step S3, the process ends.
[0025]
In the second deodorization mode in step S4, the odor of the user's filth discharged into the toilet bowl 12a is deodorized. That is, as shown in FIG. 7, the forward rotation speed of the motor M is reduced to the G1 (<G2) value by the control device C, and the fan 25 rotates forward at that rotation speed. Also at this time, since the forward rotation speed of the fan 25 is small, the amount of air hitting the damper 27 is small, and the damper 27 does not swing. For this reason, as shown in FIG. 4, the damper 27 allows the intake port 23 to communicate only with the deodorizing flow path 24. The odor of the user's filth sucked from the air inlet 23 is almost completely deodorized by the deodorizing filter F and exhausted from the air outlet 22.
[0026]
Then, after the user defecates, after operating the remote controller (not shown) and cleaning his / her own area, if the hot air blowing operation is performed in step S5 shown in FIG. The mode is terminated, and the warm air blowing mode and the third deodorizing mode are executed.
[0027]
In the hot air blowing mode and the third deodorizing mode in step S6, the hot air is blown to the local part of the user seated on the toilet seat 14 shown in FIG. 2, and the local part is dried. That is, as shown in FIG. 7, the forward rotation speed of the motor M is increased to the value G3 (>G2> G1) by the control device C, and the fan 25 rotates forward at that rotation speed. At this time, since the air volume by the fan 25 is greatly increased, the damper 27 swings as shown in FIG. For this reason, the damper 27 allows the intake port 23 to communicate with the hot air flow channel 28 and allows the intake port 23 to communicate with the deodorizing flow channel 24. For this reason, the air sucked from the air inlet 23 is warmed by the heater 29 and discharged from the hot air outlet 26. Further, a slight odor remaining in the toilet bowl 12 a is sucked from the air inlet 23, deodorized by the deodorizing filter F, and exhausted from the exhaust port 22. In addition, although the air discharged | emitted from the warm air discharge port 26 also contains the odor which remains in the toilet bowl 12a, the air stops in the toilet bowl 12a by the user sitting on the toilet seat 14, and all are deodorizing filters. Deodorized by F and exhausted from the exhaust port 22. Thus, local drying of the user and deodorization of odor can be performed simultaneously.
[0028]
During this time, the damper 27 is a single member, and is simply locked to the housing 21 so as to be swingable. Therefore, the hot air deodorizing device 20 for the toilet bowl has a small number of parts, and is low in cost. Space saving is realized. Further, by switching the damper 27, the hot air flow path 28 and the deodorization flow path 24 become one flow path, so that both the hot air flow path 28 and the deodorization flow path 24 are narrow. Therefore, the flow resistance of each of the hot air flow channel 28 and the deodorizing flow channel 24 is not increased, and the flow rate of the hot air or odor is increased. For this reason, both a user's local drying and odor deodorization can fully be performed.
[0029]
And as shown in FIG. 6, if the warm air ventilation mode and 3rd deodorizing mode of step S6 are complete | finished, it will progress to step S7 and will perform 2nd deodorizing mode.
[0030]
In the second deodorization mode in step S7, further deodorization of the odor remaining in the toilet bowl 12a shown in FIG. 2 is performed. That is, as shown in FIG. 7, the forward rotation speed of the motor M is reduced to the G1 value by the control device C, and the fan 25 rotates forward at the rotation speed. At this time, since the forward rotation speed of the fan 25 is small, the amount of air hitting the damper 27 is small, and the damper 27 returns to its original position by its own weight. For this reason, as shown in FIG. 4, the damper 27 allows the intake port 23 to communicate only with the deodorizing flow path 24. Then, the odor in the toilet bowl 12 a sucked from the air inlet 23 is deodorized by the deodorizing filter F and exhausted from the exhaust port 22.
[0031]
Next, as shown in FIG. 6, in step S8, if the seating sensor 18b detects the user's sitting, the process proceeds to step S9, the second deodorizing mode is terminated, and the first deodorizing mode is executed.
[0032]
In the first deodorization mode in step S9, the odor is deodorized when the user stands up from the toilet seat 14 shown in FIG. That is, as shown in FIG. 7, the forward rotation speed of the motor M is increased to the G2 value by the control device C, and the fan 25 rotates forward at the rotation speed. At this time, since the forward rotation speed of the fan 25 is only slightly increased, the damper 27 does not slide. For this reason, as shown in FIG. 4, the damper 27 allows the intake port 23 to communicate only with the deodorizing flow path 24. The odor in the toilet bowl 12a sucked from the air inlet 23 is deodorized by the deodorizing filter F and exhausted from the exhaust port 22.
[0033]
Next, as shown in FIG. 6, if the human body detection sensor 18a does not detect the user immediately before the Western style flush toilet 10 in step S10, the operation of the hot air deodorizing apparatus 20 for toilets ends.
[0034]
In this way, when the user is using the toilet room, the inside of the toilet bowl 12a is continuously deodorized, so that the user can avoid unpleasant feelings due to smelling odors. .
[0035]
In addition, the warm air deodorizing apparatus 20 for toilet bowl of embodiment is not limited to the above-mentioned thing. For example, the cleaning device 18 may not include the human body detection sensor 18a. If this is the case, the operation of the warm air deodorizing apparatus 20 for toilet according to the embodiment starts from step S3 of the flowchart shown in FIG.
[0036]
That is, if the seating sensor 18b detects the seating of the user in step S3, the process proceeds to step S4, and the second deodorization mode is executed. At this time, in the timing chart shown in FIG. 7, the controller C increases the normal rotation speed of the motor M to the G1 value.
[0037]
Then, after the user defecates, the user operates a remote controller (not shown) to clean his / her own area, and then, as shown in FIG. 6, steps S5 to S7 described above are executed. If the sensor 18b detects the user's sitting, the process proceeds to step S9, the second deodorizing mode is terminated, and the first deodorizing mode is executed.
[0038]
After the first deodorization mode is performed for a certain period of time, the operation of the hot air deodorization apparatus 20 for toilet is finished. Other functions and effects are the same as those of the above-described embodiment.
[Brief description of the drawings]
FIG. 1 is a left side view of a Western-style flush toilet equipped with a warm air deodorizing apparatus for toilets according to an embodiment.
FIG. 2 is a right side view of a Western-style flush toilet equipped with a warm air deodorization device for a toilet of the embodiment.
FIG. 3 is a perspective view of the hot air deodorizing apparatus for toilet according to the embodiment.
FIG. 4 is a cross-sectional view of the hot air deodorizing apparatus for toilet according to the embodiment.
FIG. 5 is a cross-sectional view of the hot air deodorization apparatus for toilet according to the embodiment.
FIG. 6 is a flowchart of a control device in the hot air deodorization apparatus for toilet according to the embodiment.
FIG. 7 is a timing chart showing the relationship between time and the normal rotation speed (air volume) of the motor in the hot air deodorization apparatus for toilet according to the embodiment.
[Explanation of symbols]
23 ... Intake port 26 ... Warm air outlet 22 ... Exhaust port 21 ... Housing M ... Motor 25 ... Fan 29 ... Heating means (heater)
F ... Deodorizing means (deodorizing filter)
12a ... toilet bowl 28 ... warm air channel 24 ... deodorizing channel 27 ... damper C ... control means (control device)

Claims (4)

A housing having an air inlet, a hot air outlet, and an air outlet; and a motor, a fan, a heating unit, and a deodorizing unit provided in the housing; Can be blown out from the hot air outlet toward the user's local area, and the odor in the toilet bowl is sucked from the inlet, and the odor is deodorized by a deodorizing means. In the hot air deodorization device for toilets that can be exhausted from the mouth,
The housing has a hot air flow path that connects the intake port and the hot air outlet through the fan and the heating unit, and the intake port and the exhaust port through the fan and the deodorizing unit. And a deodorizing flow path that communicates,
A single damper that switches communication between the intake port to the hot air flow path and communication to the deodorization flow path according to the normal rotation speed of the motor;
A warm air deodorizing device for a toilet comprising a control means capable of changing the normal rotation speed. The hot air deodorizing apparatus for a toilet according to claim 1, wherein the air intake port is also in communication with the deodorizing flow path while the damper communicates with the air intake opening and the hot air flow path. The damper communicates the intake port with the deodorizing flow path when the air volume by the fan is small, and communicates the intake port with the warm air flow path and the deodorizing flow path when the air volume by the fan is large. The hot-air deodorizing apparatus for toilets according to claim 1 or 2. The hot air deodorizing device for toilets according to claim 1, 2 or 3, wherein the control means rotates the motor forward at least when the user is using the toilet.

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