JPS6128642A - 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 used in a Western-style toilet, etc., which has the function of washing the private parts with hot water etc. after defecating, and then drying with warm air, and the function of heating the toilet room. It is related to the device.

Conventional Structure and Problems Conventionally, in this type of device, as shown in FIG. 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 for driving the impeller 6.

This drying device A is placed behind the upper 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 (in the figure, the solid line ) was formed, heated to a certain temperature by an electric heater 9, and then discharged into the toilet bowl 1 from the discharge port 2 to dry the private parts. On the other hand, for heating the toilet room, for example, a separate heating device such as an air heater was used in combination.

However, although such a configuration has the advantage that each device can be used independently, there is a problem that the entire device becomes large in size as a device having all functions.

OBJECT OF THE INVENTION The present invention solves the problems of the prior art, and reduces the size of the toilet seat device by heating the inside of the toilet room using a blower for local drying and an electric heater arranged in the toilet seat device. It is only for the purpose of achieving.

Structure of the Invention In order to achieve this object, the present invention includes an air blower and an electric heater for drying the private part after washing the private part, and a warm air outlet for heating is provided downstream of the electric heater to blow air outside the toilet bowl. A damper for switching between the heating path and the drying path; an auxiliary heater for raising the temperature of the shape memory alloy in order to drive the damper, and applying a constant voltage to the shape memory alloy and depending on the value of the current flowing through the shape memory alloy. and a control unit that controls energization to the auxiliary heater, and is configured to stop energizing the auxiliary heater when the current value corresponds to the driving temperature of the shape memory alloy. .

According to the above configuration, heating can be performed by discharging warm air to the outside of the toilet bowl through the heating hot air outlet using the blower and electric heater used for local drying.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 2 to 6.

FIG. 2 shows a case where the water device B is disposed on the toilet bowl 11 and the heating path 15 is opened to perform indoor heating, and FIG. 3 shows the main part thereof. FIG. 4 similarly shows a state in which the heating path 15 is closed for the main part. FIG. 5 shows a block diagram for controlling the supply of electricity to the auxiliary heater 17, the blower 18, and the electric heater 19. Further, FIG. 6 shows the relationship between the temperature and electrical resistance of the shape memory alloy and the current flowing through the shape memory alloy when a constant voltage is applied.

In addition, in FIGS. 2 to 4, solid line arrows indicate the flow of warm air for room heating, and dashed-dotted line arrows indicate the flow of hot air for local drying.

As shown in FIGS. 2 to 4, a blower 18 for blowing hot air for room heating and an electric heater 19 for heating the air are arranged inside the external device 4, and the external device is located downstream of the electric heater 19. A heating path 15 opens to the outside of the toilet bowl 11 through a heating warm air outlet 25 provided at 4, and a heating path 15 opens into the toilet bowl 11 through a drying hot air outlet 12 that discharges hot air for drying when drying a local area. The heating path 15 and the drying path 13 are driven by an auxiliary heater 17, and the drying path 13 is provided with a
The shape memory alloy in the shape of a fill is made alternately openable and closed by the damper 16 in the shape of an abbreviated character, which is rotated by the coiled shape memory alloy 21 and the auxiliary coil spring 23 located in the auxiliary heater. 21 is raised to the driving temperature of the shape memory alloy 21, the damper 16 is rotated, and the drying path 13 side is opened.

That is, the damper 16 is horizontally rotatable about the support column 22, and as shown in FIGS. 2 to 4, when the area is dry, the electric heater 19
Power supply 17 to blower 18 and auxiliary heater 17, auxiliary heater 1
The shape memory alloy 21 is driven by the heat generated by the heater 7 to open the drying path 13 and at the same time close the heating path 15, which is used for drying the local area. On the other hand, during heating, the power supply to the auxiliary heater 17 and the electric heater 19 is stopped, and the coiled shape memory alloy 21 is cooled by the air flow from the blower 18.
After closing the drying path 13 with the auxiliary coil spring 23,
The electric heater 19 is configured to be energized and used for indoor heating. Furthermore, the coiled shape memory alloy 21
The shape memory alloy 2 is placed in the drying path 13 so as to be in constant contact with hot air for drying, and a constant voltage is applied via the control unit 26 that controls energization to the auxiliary heater 17 and the like.
The temperature of the shape memory alloy 21 is detected based on the current value flowing through the auxiliary heater 17 according to the temperature of the shape memory alloy 21.
The power supply is controlled. On the other hand, the electrical resistance value of the shape memory alloy 21 with respect to temperature has a characteristic as shown by the solid line in FIG. The relationship has the characteristics shown by the broken line in FIG. That is, the temperature of the shape memory alloy 21 can be detected by detecting the electrical resistance value from the value of the current flowing through the shape memory alloy 21. Therefore, when the control unit 26 detects a current value corresponding to the driving temperature of the shape memory alloy 21, the auxiliary heater 1
7 is stopped, and thereafter the operation of the shape memory alloy 21 is maintained by the temperature of the hot drying air flowing in the drying path 13.

In FIG. 5, 27 is a main power source that supplies power to the auxiliary heater 17, the air 18, the electric heater 19, etc. via the control unit 26.

According to the above configuration, the air blown by the blower 18 is heated by the electric heater 19, and is directly discharged from the heating path 15 to the outside of the toilet bowl 11 via the hot air discharge port 25 for heating the room.

Effects of the Invention According to the present invention, since the toilet room is heated using a blower for local drying and an electric heater, the entire device can be downsized. In addition, the drying path and heating path are opened and closed by a shape memory alloy that is driven by energizing the auxiliary heater and using the heat generated.When heating the room, the heating path is opened and communicated directly with the outside of the toilet, allowing the blower to The supplied air is heated by an electric heater and discharged directly from the heating hot air outlet to the outside of the toilet bowl to heat the room.When the drying path is open, the temperature of the hot air passing through the drying path is increased by the temperature of the shape memory alloy. When the driving temperature is reached, the supply of electricity to the auxiliary heater is stopped and the open state is maintained using the heat of the warm air, making it possible to make the damper opening/closing mechanism extremely compact.

[Brief explanation of drawings]

Fig. 1 is a partial cross-sectional plan view showing a conventional example, and Fig. 2 is a partial cross-sectional view of the toilet seat device according to an embodiment of the present invention, in which the heating path of the toilet seat device is opened to perform indoor heating, and the present device is placed on a toilet bowl. , Fig. 3 is a sectional view of the main part, Fig. 4 is a sectional view of the main part when the heating path is closed, Fig. 5 is a block diagram showing the electrical connection, and Fig. 6 is a shape memory FIG. 2 is a characteristic diagram showing the relationship between temperature, electrical resistance, and current of an alloy. B. Toilet seat device, 11... Toilet bowl, 12 - Warm air outlet for drying, 13... Drying path, 15... Heating path, 16
・Damper, 17...Auxiliary heater, 18...Blower, 19...Electric heater, 21 Shape memory alloy, 2
5-Hot air outlet for heating, 26...Control unit. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] It has an air blower and an electric heater for drying the private parts after washing the private parts, and a heating path that opens to the outside of the toilet bowl via a heating hot air outlet and a drying hot air outlet on the downstream side of the electric heater. a damper for switching between the heating path and the drying path; a shape memory alloy fixed to one end of the damper and located within the drying path; and a damper for driving the damper. an auxiliary heater for raising the temperature of the shape memory alloy, and a control unit that applies a constant voltage to the shape memory alloy and controls energization to the auxiliary heater according to a current value flowing through the shape memory alloy. A toilet seat device configured to stop energizing the auxiliary heater when a current value flowing through the shape memory alloy reaches a current value corresponding to a driving temperature of the shape memory alloy.