JPH0561419B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a toilet seat device used in Western-style toilets, etc., which has the function of washing the private parts with hot water etc. after defecating, and then drying them with warm air, and the function of deodorizing odors. It is.

BACKGROUND ART Conventionally, in this type of device, as shown in FIG. A drying device B is provided, which constitutes a ventilation path 5 that communicates with the air supply port 3, and which includes a built-in blower 8 and an electric heater 9, which are comprised of an impeller 6 and a motor 7 that drives the impeller 6. ing. Then, by energizing the electric heater 9 and operating the blower 8, an air flow is formed from the air supply port 3 to the discharge port 2, and after being heated by the electric heater 9, it is discharged from the discharge port 2 into the toilet bowl 1. It was used to dry local areas. In addition, for deodorizing when using the toilet, the drying device B has a similar configuration to the drying device B, but a deodorizing agent is arranged in place of the electric heater 9, and the drying device B
A deodorizing device with a configuration in which the air flows in the opposite direction, that is, exhausting the air inside the toilet bowl 1 to the outside of the toilet bowl 1, was used alone or in conjunction with a drying device. .

Problems to be Solved by the Invention However, while the above configuration has the advantage of being able to use the drying device B and the deodorizing device independently, it is difficult to use two devices with the same configuration as a device that has both functions. This poses a problem in that the entire device becomes larger.

The present invention solves these conventional problems, and aims to provide a toilet seat device that has both drying and deodorizing functions with a single blower and is miniaturized.

Means for Solving the Problems The present invention includes two centrifugal impellers whose blades have different arc directions with respect to the same suction direction, and their respective casings. Each impeller is arranged so that the airflow enters through the inside of the centrifugal impeller on the side, and
The centrifugal blower is configured to be driven by a single electric motor that can be rotated in forward and reverse directions.The deodorizing air intake path has a deodorizing intake port that opens into the toilet bowl via a deodorizing agent on the upstream side of the centrifugal blower, which is driven by a single electric motor that can be rotated forward and backward, and a drying air intake that opens outside the toilet bowl. A drying intake passage with a mouth is provided, the drying intake passage is opened and closed by a damper driven by a shape memory alloy, and the drying intake passage is opened into the toilet bowl via an electric heater on the discharge side of the centrifugal impeller on the upstream side. A discharge port and a deodorizing discharge port opened on the discharge side of the downstream centrifugal impeller are provided.

Effects According to the present invention, with the above-described configuration, it is possible to provide a small toilet seat device that has both drying and deodorizing functions using a single blower, and also to change the rotation direction of the electric motor. By the way,
The ejection port can be selected.

Examples Examples of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows a case in which the damper 26 of the device A is opened to perform local drying and deodorizing functions at the same time, and FIG. 2 shows a case in which the damper 26 is closed to perform the deodorizing function. In addition, Figures 1 and 2
In the figure, solid line arrows indicate the flow of local drying air, and dashed-dotted line arrows indicate the flow of deodorizing air.

As shown in FIGS. 1 and 2, the toilet seat device A of the present invention includes a deodorizer 22 made of, for example, activated carbon molded into a honeycomb shape, on the upstream side of a centrifugal blower 35 that blows air for local drying and deodorization. Toilet bowl 2 through
1, a deodorizing intake passage 24 having a deodorizing intake port 23 opening therein, and a shape memory alloy 25 formed into a coil shape.
toilet bowl 2 via a damper 26 driven by
A drying air intake passage 28 is provided with a drying air intake port 27 that opens to the outside of the toilet bowl 2 .
A drying outlet 30 opened into the toilet bowl 21 and a deodorizing outlet 31 opened outside the toilet bowl 21 are provided. Further, the drying outlet 30 is provided with an opening/closing flap 32 that automatically opens and closes depending on the pressure of the air flow passing through the opening and its own weight. On the other hand, the shape memory alloy 25 is configured to change the contraction force of the spring of the shape memory alloy 25 by utilizing self-heating caused by passing an electric current through it, and also changes the current value to be applied to the damper 26. The opening/closing angle can be changed. That is, when the current is small, it opens as shown in FIG. 1, allowing drying and deodorization to operate simultaneously, and when the current is large, the opening angle becomes even larger, and the deodorizing intake passage 24 of the deodorizing agent 22 is closed by the damper 26. and only dry operation is possible. Furthermore, by stopping the energization, the damper 26
8 is closed and only deodorizing operation is possible.

Further, the centrifugal blower 35 has two centrifugal impellers 36, 37 whose blades 36a, 37a each have different arc directions with respect to the same suction direction, and two centrifugal impellers 36, 37 whose respective arc directions differ from each other with respect to the same suction direction. It has corresponding casings 38 and 39, and is arranged so that air flows into the downstream centrifugal impeller 37 through the inside of the upstream centrifugal impeller 36,
Both impellers 36 and 37 are connected by a coupling plate 41 provided with a vent 40, and both impellers 36 and 37 are configured to rotate simultaneously. On the other hand, the discharge sides of the casings 38 and 39 each have a drying discharge port 30.
and a deodorizing outlet 31, and inside the centrifugal blower 35 there is an out rotor type electric motor 4, such as a transistor motor, which can rotate in forward and reverse directions.
2 are arranged so that both impellers 36 and 37 rotate about the same rotation axis. Further, from the casings 38 and 39 facing the outer periphery of the coupling plate 41, the coupling body 4
A rectifying plate 44 is provided to protrude in one direction so as to have a gap 45 between it and the outer periphery of the coupling plate 41.

1 and 2, 46 indicates the intake port of the centrifugal blower 35, 34 indicates the exterior of the toilet seat device A, and 33 indicates the shape memory alloy 25.
A coiled bias spring is shown to balance the rotational moment.

Next, a case where local drying operation and deodorizing operation are performed simultaneously will be explained using FIG. A small current is passed through the coiled shape memory alloy 25 to cause it to self-heat, and by increasing the contraction force of the spring, the damper 26 is rotated to open the dry air intake path 28 through the dry air intake port 27, and , the deodorizing intake passage 24 of the deodorizing agent 22 is configured to communicate with the intake port 46 of the centrifugal blower 35, and by operating the centrifugal blower 35, the air outside the toilet bowl 21 is sucked into the exterior 34 through the drying intake port 27. The air flows through the centrifugal impeller 36 on the upstream side of the centrifugal blower 35 to the electric heater 29, where it is heated and becomes warm air, which is then discharged into the toilet bowl 21 through the drying outlet 30. It is used for drying local areas. On the other hand, since the dry air intake path 28 is open and the deodorizing intake port 23 is always open, the centrifugal blower 35
A small amount of air is sucked into the That is, in this case, a part of the deodorizing function can be obtained even during drying. Further, the opening/closing flap 32 provided at the drying outlet 30 is pushed upward by the airflow passing through the drying outlet 30.

Next, the case of performing deodorizing operation will be explained using FIG. 2. By stopping the power supply to the shape memory alloy 25 and weakening the contraction force of the spring of the shape memory alloy 25, the contraction force of the bias spring 33 rotates the damper 26 to close the dry air intake passage 28, and the electric motor 42 is turned off. By reversing the rotation direction, the centrifugal impeller 37 on the downstream side of the centrifugal blower 35 is set in the normal rotation direction, thereby deodorizing the air inlet 2.
3, the air in the toilet bowl 21 is sucked into the deodorizing passage 24, passes through the deodorizing agent 22, and the airflow subjected to the deodorizing action is transferred to the inside of the upstream centrifugal impeller 36 and the downstream centrifugal impeller 37. It is then discharged from the deodorizing outlet 31 to the outside of the toilet bowl 21. However, in this case, although a small amount of air is sucked into the interior from the drying outlet 30, the opening/closing flap 32 provided at the drying outlet 30 falls downward due to its own weight. In order to close the drying outlet 30, a flow flowing back into the inside of the drying outlet 30 is prevented.

According to this configuration, by passing a small current through the shape memory alloy 25 to open the damper 26 and opening the drying intake port 27, drying is carried out from the drying intake port 27 and the deodorizing intake port 23 via the centrifugal blower 35. It generates an air flow flowing through the discharge port 30, and can be used for drying and deodorizing the local area at the same time. In addition, a large current is passed through the shape memory alloy 25, and the damper 26
By increasing the rotation angle of
7, an air flow is generated that flows to the drying outlet 30 via the centrifugal blower 35, and only drying operation is possible. On the other hand, the power supply to the shape memory alloy 25 is stopped,
By closing the damper 26 and rotating the electric motor 42 in the reverse direction, an air flow is generated that flows from the deodorizing inlet 23 to the deodorizing outlet 31 via the centrifugal blower 35, and can be used only for deodorizing operation.

On the other hand, the connecting plate 4 is connected to the casings 38 and 39 so as to have a gap 45 between the outer periphery of the connecting plate 41 and the outer periphery of the connecting plate 41.
By providing the rectifier plate 44 protruding in one direction, both impellers 36 and 37 are provided around the outer periphery of the coupling plate 41.
This has the effect of preventing flow disturbances caused by mutual interference.

Effects of the Invention As described above, according to the present invention, the discharge direction from the centrifugal blower can be changed simply by changing the rotational direction of the drive motor and controlling the opening/closing operation of the damper, that is, controlling the energization to the shape memory alloy. can,
Deodorization and drying can be performed freely, and the configuration of the centrifugal blower can be simplified, and at the same time, the configuration of the toilet seat device can be downsized.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of a toilet seat device according to an embodiment of the present invention in a state where drying operation and deodorizing operation are performed simultaneously;
Figure 2 is a partial cross-sectional view of the same deodorizing operation.
FIG. 3 is a partially sectional plan view showing a conventional example. A... Toilet seat device, 21... Toilet bowl, 22... Deodorizer, 23... Deodorizing intake port, 24... Deodorizing intake path,
25... Shape memory alloy, 26... Damper, 27
...Dry intake port, 28...Dry intake path, 29...
Electric heater, 30...Drying outlet, 31...Deodorizing outlet, 36, 37...Centrifugal impeller, 36a,
37a... Wing, 38, 39... Casing, 42
...Electric motor, 44 ... Rectifier plate, 45 ... Gap.

Claims (1)

[Claims] 1. Two centrifugal impellers whose blades have different arcuate directions with respect to the same suction direction and respective casings are provided, and the downstream centrifugal impeller has an upstream centrifugal impeller. Each impeller is arranged so that air flows into the interior of the car, and a deodorizer is placed upstream of the centrifugal blower, which is driven by a single electric motor that can rotate forward and reverse. A deodorizing intake passage provided with a deodorizing intake port opening to the outside of the toilet bowl, and a drying intake passage provided with a drying intake opening opening outside the toilet bowl are provided, and the drying intake passage is opened and closed by a damper driven by a shape memory alloy. A drying outlet opening into the toilet bowl via an electric heater is provided on the discharge side of the centrifugal impeller on the upstream side, and a deodorizing outlet opening outside the toilet bowl is provided on the discharge side of the centrifugal impeller on the downstream side. Toilet seat device. 2. The toilet seat device according to claim 1, further comprising a rectifying plate protruding from the casing in the direction of the impellers so as to have a gap between the rectifying plate and the outer periphery of the joint portion of the two centrifugal impellers. 3. The toilet seat device according to claim 1 or 2, wherein the shape memory alloy is driven by energizing it, and the opening/closing angle of the damper is changed by changing the current value.