JPS62153432A - Toilet seat apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

2. Description of the Related Art Conventionally, in this type of device, as shown in FIG. A drying device B is provided, which constitutes a ventilation passage 5 that communicates with an air supply port 3, and also includes an impeller 6 in the ventilation passage 5, a blower 8 and an electric heater 9 which are driven by a motor 7 that drives the impeller 6. It is set up. and,
'', 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, the air flow from the discharge port 2 to the toilet bowl. In addition, for deodorizing when using the toilet, the drying device B has a similar configuration to the drying device B, with a deodorizing agent placed in the liner of the electric heater 9. air flow in the opposite direction,
That is, a deodorizing device configured to discharge the air inside the toilet bowl 1 to the outside of the toilet bowl 1 is used alone or in combination 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 large in size.

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 provides two centrifugal impellers whose blades have different arc directions with respect to the same suction direction, and their respective casings. The deodorizer is installed on the upstream side of the centrifugal blower, which is configured to have each impeller arranged so that air flows in through the inside of the centrifugal impeller, and is driven by a single electric motor that can rotate forward and reverse. A deodorizing intake passage having a deodorizing intake port opening into the toilet bowl through the toilet bowl, and a drying intake passage having a drying intake opening opening outside the toilet bowl are provided, and the deodorizing intake passage and the drying intake passage are driven by a shape memory alloy. The centrifugal blower is controlled by a tamper, and a drying outlet opening into the toilet bowl via an electric heater and a deodorizing outlet opening outside the toilet bowl are provided on the downstream side of the centrifugal blower.

Function: With the above-described configuration, the present invention can provide a compact toilet seat device by using a single blower to provide both drying and deodorizing functions, and can also change the direction of rotation of the electric motor. The ejection port can be selected by .

EXAMPLE Hereinafter, an example of the present invention will be explained using 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 FIGS. 1 and 2, 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. A deodorizing intake port 2 that opens into the toilet bowl 21 through the
3, and a drying air intake path 28, which has a drying air inlet 27 that opens to the outside of the toilet bowl 21 via a damper 26 driven by a shape memory alloy 25 formed into a coil shape. A drying outlet 30 that opens into the toilet bowl 21 and a deodorizing outlet 31 that opens outside the toilet bowl 21 are provided on the downstream side of the mold blower 35 (for example, via a coil-shaped electric heater 29).

In addition, a drying outlet 3011]d is provided with an opening/closing flap 32 that automatically opens and closes depending on the pressure of the air flow passing therethrough and its own weight. On the other hand, the shape memory alloy 25 is configured to change the contractile force of the spring of the shape memory alloy 25 by utilizing self-heating caused by passing an electric current through it, and also to change the value of the current to be applied. The opening/closing angle of the damper 26 can be changed. In other words, when the current is small, it opens as shown in Figure 1, allowing simultaneous operation of drying and deodorizing.
When the current is large, the opening angle becomes even larger and the damper 2
6, the deodorizing intake passage 24 of the deodorizing agent 22 is closed, and only drying operation is possible. Further, by stopping the power supply, the damper 26 closes the drying intake passage 28 and only the deodorizing operation is possible.

Further, the centrifugal blower 35 has two centrifugal impellers 36, 37 whose blades 36a and 37a have different arc directions with respect to the same suction direction, and two centrifugal impellers 36, 37 whose arc directions differ from each other with respect to the same suction direction. It has a casing 38, 39 corresponding to the casing 38, 39, and is arranged so that air flows into the centrifugal impeller 37 on the downstream side via the centrifugal impeller 36 on the upstream side, and both impellers 36, 37 and is a connecting plate 4 provided with a ventilation hole 40.
1 to rotate both impellers 36 and 37 at the same time. On the other hand, the discharge sides of the casings 38 and 39 are provided with a drying discharge port 30 and a deodorizing discharge port 31, respectively, and an outrotor type electric motor such as a transistor motor that can rotate forwardly and reversely is installed inside the centrifugal blower 35. 42 so that both impellers 36 and 37 rotate about the same rotation axis. Furthermore, a gap 4 is formed between the rectifying plate 44 and the outer periphery of the coupling plate 41 by protruding toward the coupling body 41 from the casings 38 and 39 facing the outer periphery of the coupling plate 41.
5.

In Figs. 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 a mechanism for balancing the rotational moment with the shape memory alloy 25. A coiled bias spring is shown.

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 passage 28 through the dry air intake port 27 and deodorize. The deodorizing intake passage 24 of the agent 22 and the intake port 4 of the centrifugal blower 35
By operating the centrifugal blower 35, air from outside the toilet bowl 21 flows through the drying intake port 27 to the exterior 3.
The air flow is drawn into the toilet bowl through the drying outlet 30 and 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. 21 and used for drying the local area. On the other hand, since the dry air intake passage 28 is open and the deodorizing air intake 23 is always open, the centrifugal blower 3
A small amount of air is sucked into 5. 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 air flow passing through the drying outlet 30.

Next, the case where deodorizing operation 2 is performed 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 bias spring 33
The damper 26 is rotated by the contraction force to close the dry air intake passage 2, and the direction of rotation of the electric motor 42 is reversed, so that the centrifugal impeller 37 on the downstream side of the centrifugal blower 35 is set in the normal rotation direction. Deodorizing intake port 2
The air in the toilet bowl 21 from 3 is sucked into the 1 pleasure passage 24,
The airflow that has passed through the deodorizer 22 and has been deodorized is sent to an upstream centrifugal impeller 36 and a downstream centrifugal impeller 37'.
f: After that, it is discharged to the outside of the toilet bowl 21 from the deodorizing discharge port a1.

However, in this case, a small amount of air is sucked into the interior from the drying outlet 30, but the drying outlet 3o
The opening/closing flap 32 installed in the opening/closing flap 32 falls downward due to its own weight, thereby blocking the flow back into the drying outlet 30 in order to close the drying outlet 3o.

According to this configuration, by passing a small current through the shape memory alloy 25 to open the damper 26 and opening the drying inlet 27, the air is passed from the drying inlet 27 and the deodorizing inlet 23 to the centrifugal blower 35 to the drying outlet. 30, which can be used for drying and deodorizing local areas at the same time. However, by applying a large current to the shape memory alloy 25 and increasing the rotation angle of the damper '-26, an air flow is generated that flows from the drying inlet 27 to the drying outlet 30 via the centrifugal blower A5. Only driving is possible. On the other hand, by stopping the power supply to the shape memory alloy 25, closing the damper 26, and rotating the electric motor 42 in the reverse direction, the air is passed from the deodorizing inlet 23 to the centrifugal blower 35 to the deodorizing outlet 3.
1 and can be used only for deodorizing operation.

On the other hand, by providing a rectifier plate 44 that protrudes from the casing 38, 39 toward the coupling plate 41 so as to have a gap 45 between it and the outer circumference of the coupling plate 41, both impellers 36 .37 has the effect of preventing flow disturbances caused by mutual interference.

Effects of the Invention As described above, according to the present invention, the direction of discharge from a 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, the energization of the shape memory alloy. Therefore, deodorization and drying can be performed freely, and the configuration of the centrifugal blower can be simplified and the configuration of the toilet seat device can be reduced in size.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of a toilet seat device according to an embodiment of the present invention in which drying operation and deodorizing operation are performed simultaneously, FIG. FIG. A... Toilet seat device, 21... Toilet bowl, 22.
... Deodorizer, 23 ... Deodorizing intake port, 24
...Deodorizing intake path, 25...Shape memory alloy, 26...Damper, 27...Drying intake port, 28...Drying intake path , 29... group electric heater, 30... drying outlet, 31...
・Deodorizing outlet, 36.37... Centrifugal impeller,
36a, 37a...Blade, 38.39...Casing, 42...Electric motor, 44...
Current plate, 45...Gap. Name of agent: Patent attorney Toshio Nakao and one other person
4ra'-1n'I Figure 2

Claims (3)

[Claims] (1) Two centrifugal impellers whose blades have different arcuate directions with respect to the same suction direction are provided, and their respective casings are provided. Each impeller is arranged so that the airflow flows in, and the deodorizing air intake opens into the toilet bowl through a deodorizing agent on the upstream side of the centrifugal blower, which is configured to be driven by a single electric motor that can rotate forward and backward. A deodorizing intake passage provided with an opening and a drying intake passage provided with a drying intake port opening outside the toilet bowl are provided, the deodorizing intake passage and the drying intake passage are controlled by a damper driven by a shape memory alloy, On the downstream side of the centrifugal blower, there is a drying outlet that opens into the toilet bowl via an electric heater.
A toilet seat device equipped with a deodorizing outlet that opens outside the toilet bowl. (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 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.