JPS6222619A - 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 used in Western-style toilets, etc., which has the function of washing the private parts with warm water etc. after defecating, and then drying them with warm air, and the function of deodorizing odors. It is.

2. Description of the Related Art Conventionally, in this type of device, as shown in FIG. 4, a ventilation passage 5 is formed within an exterior casing 4 by providing a discharge port 2 that opens into the toilet bowl 1 and an air supply port 3 that opens outside the toilet bowl 1. At the same time, a drying device A is provided in the ventilation path 5, and includes a blower 8 and an electric heater 9, each of which includes an impeller 6 and a motor 7 that drives the impeller 6.

This drying device A is arranged at the upper rear part of the toilet bowl 1, and by energizing the electric heater 9 and operating the blower 8, air flows from the air supply port 3 to the discharge port 2 (indicated by the solid line arrow in the figure). ) was heated with an electric heater 9 and then discharged into the toilet bowl 1 from the discharge port 2 to dry the private parts. For deodorizing when using the toilet, the structure is similar to that of the drying device A, with a deodorizing agent placed in place of the electric heater 3 and 9, and air flowing in the opposite direction to the drying device A. That is, a method has been adopted in which 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 A 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 has a deodorizing path on the upstream side of the blower and a discharge path on the downstream side, and the deodorizing path has an opening into the toilet bowl through a deodorizing agent made of, for example, activated carbon molded into a honeycomb shape. A deodorizing intake port is provided to
For example, the discharge path is provided with a discharge port that opens into the toilet bowl via a coil-shaped electric heater and has an opening/closing flap, and a drying intake port that opens outside the toilet bowl between the blower and the deodorizer. At the same time, a damper that opens and closes using a shape memory alloy that is connected in series with the electric heater and operates by being heated by simultaneous energization with the electric heater is disposed at the drying intake port, and the shape memory alloy is connected to the drying intake in series. When the mouth is open, it is placed in the air stream passing through the drying inlet. Furthermore, a temperature sensor or the like is used to control the current flowing according to the room temperature.

Function: With the above-described configuration, the present invention can provide a small toilet seat device that has both drying and deodorizing functions using a single blower, and also increases the drying air temperature in winter. It is possible to provide a toilet seat device that is lowered in the summer and has improved usability.

Example Hereinafter, examples of the present invention will be explained on a 5-page diagram using FIGS. 1 to 3. I will explain.

FIG. 1 shows the device B in a case where the drying inlet 19 is opened to perform a local drying action, and FIG. 2 shows a case in which the drying inlet 19 is closed to perform a deodorizing action.

Further, FIG. 3 is a block diagram showing an outline of the control system. 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, a deodorizing path 13 is located upstream of the blower 12 that blows air for local drying and deodorizing.
A discharge path 14 is arranged on the downstream side, and the upstream end of the deodorizing path 13 is a deodorizing intake port 16 that opens into the toilet bowl (not shown) through a deodorizing agent 15 made of, for example, activated carbon molded into a honeycomb shape.
The downstream end of the downstream discharge path 14 is provided with a discharge port 18 that opens into a toilet bowl (not shown) via a coil-shaped electric heater 17, for example. Further, a drying inlet 19 that opens to the outside of the toilet bowl (not shown) is provided between the blower 12 and the deodorizing agent 15, and the drying inlet 19 is opened and closed. A damper 20 is arranged, and this damper 20i't, a shape memory alloy 22 operated by electrical heating, and an auxiliary spring 2.
3, and when the damper 20 is open, that is, when the drying intake port 19 is open, the shape memory alloy 22 is arranged so as to be located in the air flow passing through the damper 20. On the other hand, the electric heater 17 and the shape memory alloy 22 are
As shown in FIG. 3, they are connected in series via an AC power source 25 and a control element 24, and the electric heater 17 and shape memory alloy 22 are always energized simultaneously. In addition, control element 2
4 is connected via a buffer 26 to a control section 27 mainly composed of a microcomputer or the like, and controls the current flowing to the electric heater 17 and the like according to commands from the control section 270. Further, the control section 27 is connected to an operation section 28 which is operated by the user when setting the hot air temperature, for example, and also connected to a temperature sensor 29 which detects the room temperature via the buffer 26. That is, the control unit 27 controls the electric current to be applied to the electric heater 17 etc. to a high level when the room temperature is low in the winter, and to a low level when the room temperature is high in the summer. Further, the discharge port 18 is provided with an opening/closing flap 21 that automatically opens and closes depending on the pressure of the air flow passing therethrough and its own weight. In addition, 11 shows the exterior of the toilet seat device B, and the air resistance of the drying inlet 19 when the drying inlet 19 is opened using the damper 20 is the air resistance of the drying inlet 19 when the damper 20 is used and the drying inlet 19 is closed. 12, that is, the amount of air during the drying operation is set to be larger than the amount of air during the deodorizing operation.

Next, the case where local drying operation is performed will be explained using FIG. By energizing the shape memory alloy 22, the shape memory alloy 22 is given a tensile force greater than the tensile force of the auxiliary spring 23 to operate the damper 20 to open the drying intake port 19 and operate the blower 12. As a result, the air outside the toilet bowl is sucked into the outside device 1 through the drying intake port 19, passes through the electric heater 17 via the blower 12, and the airflow, which is turned into warm air by the electric heater 17, flows through the discharge port 18. It is discharged into the toilet bowl and used to dry local areas. On the other hand, since the deodorizing intake port 16 is always open even when the damper 20 is open, a small amount of air is sucked into the blower 12 via the deodorizing agent 15. That is, in this case, a part of the deodorizing function can be obtained even during drying. Further, the opening/closing flap 21 provided at the discharge port 18 is pushed upward by the airflow passing through the discharge port 18. Furthermore, an electric heater 17 and a shape memory alloy 22
By connecting these in series and controlling the amount of current depending on the room temperature, in other words, by applying a large current when the temperature is low and a small current when the temperature is high, the temperature of the hot drying air can be kept at a comfortable level at all times.

Next, the case of performing deodorizing operation will be explained using FIG. 2. By stopping the power supply to the shape memory alloy 22, the auxiliary spring 2a is given a tensile force larger than the tensile force of the shape memory alloy 22, and the damper 20 is operated to close the drying intake port 19 and the blower 12 is turned on. When the toilet is operated, the air inside the toilet bowl is sucked into the deodorizing passage 13 through the deodorizing intake port 16, passes through the deodorizing agent 15, and the airflow subjected to the deodorizing action passes through the blower 12 and is discharged into the toilet bowl from the discharge port 18. 9
Vaneru. In this case as well, the opening/closing flap 2 provided at the discharge port 18
1 is pushed upward by the air flow passing through the discharge port 18, but the air flow rate passing through the discharge port 18 is smaller during deodorization than during drying. Therefore, the opening degree of the opening/closing flap 21 becomes smaller than when drying. Therefore, during the deodorizing operation, the discharged airflow is discharged downward by the opening/closing flap 21. That is, the airflow is not discharged toward the local area even when the user is using the toilet. Furthermore, since the shape memory alloy 22 is located in the air flow passing through the drying intake port 19,
When transitioning from drying operation to deodorizing operation, that is, when electricity to the shape memory alloy 22 is stopped, the drying intake port 1
Shape memory alloy 22 is forced by airflow passing through 9
As the shape memory alloy 22 is cooled, the tensile force of the shape memory alloy 22 decreases rapidly. Therefore, the closing operation of the damper 20 can be accelerated.

According to this configuration, by energizing the shape memory alloy 22, the drying inlet 19 is opened, and the airflow flowing from the drying inlet 10, the hedge 19, and the deodorizing inlet 16 to the outlet 18 via the blower 12 is caused. The electric heater 17 generates hot air, which can be used to dry local areas. In addition, by stopping the electricity supply to the shape memory alloy 22, the drying inlet 1
9 is closed to create a void where air flows from the deodorizing intake port 16 to the discharge port 18 via the blower 12, and after the deodorizing effect is obtained by the deodorizer 15, it is discharged below the discharge port 18 by the opening/closing flap 21 of the discharge port 18. and can be used for deodorization.

On the other hand, connecting the electric heater 17 and the shape memory alloy 22 in series provides the following advantages.

That is, since the electrical resistance of the shape memory alloy 22 is very small, a low voltage power source is required to operate it alone. However, since the electric heater 17 has an electric resistance that can be used with a commercial power source, the commercial power source can be used by connecting both heaters in series. Moreover, especially in winter, the electric heater 17 may be used at its maximum electric capacity, and in this case, there is a risk that the shape memory alloy 11A-7 22 will become heated because the maximum current flows. On the other hand, since the shape memory alloy 22 is located in the airflow passing through the drying intake port 19, heating can be prevented by the cooling effect of the airflow.

Effects of the Invention According to the present invention, the blower has a deodorizing passage on the upstream side and a discharge passage on the downstream side, and the deodorizing passage has a deodorizing passage that opens into the toilet bowl through a deodorizing agent made of, for example, activated carbon molded into a honeycomb shape. An intake port is provided, and the discharge path is provided with a discharge port that opens into the toilet bowl through, for example, a coil-shaped electric heater and is provided with an opening/closing flap. The drying intake port is opened and closed by a damper operated by a shape memory alloy, and the blower load is adjusted so that the air flow rate during drying operation is higher than the air flow rate during deodorization operation. By setting this, you can obtain part of the deodorizing function even during drying operation,
A small toilet seat device having both drying and deodorizing functions can be provided using one blower. Furthermore, the temperature sensor can maintain the temperature of the drying hot air at a comfortable temperature, and also prevent the shape memory alloy from being heated by the maximum current in winter or the like.

[Brief explanation of the drawing]

FIG. 4 is a partially sectional plan view showing a conventional example. B...Toilet seat device, 12...Blower, 1
3... Deodorizing path, 14... Discharge path, 15
... Deodorizer, 16 ... Deodorizing intake port,
17...Electric heater, 18...Discharge port, 19...Drying intake port, 20...Damper, 21...Opening/closing flap , 22...
...Shape memory alloy. Name of agent: Patent attorney Toshio Nakao and 1 other CQ
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Claims (3)

[Claims] (1) The blower has a deodorizing path on the upstream side and a discharge path on the downstream side, and the deodorizing path is provided with a deodorizing intake port that opens into the toilet bowl through a deodorizing agent, and the discharge path is connected to the toilet bowl through an electric heater. A discharge port that opens inward and has an opening/closing flap is provided, a drying intake port that opens to the outside of the toilet bowl is provided between the blower and the deodorizer, and the drying intake port is connected in series with the electric heater. and a toilet seat device including a damper that opens and closes using a shape memory alloy that is heated and activated by simultaneous energization with the electric heater. (2) The toilet seat device according to claim 1, wherein the shape memory alloy is positioned in the air flow passing through the drying inlet when the drying inlet is opened. (3) The toilet seat device according to claim 1, wherein the amount of electricity applied to the electric heater and the shape memory alloy is controlled according to room temperature.