JPH02183023A - Warm water-type washing toilet seat device - Google Patents

Abstract

PURPOSE:To keep stable washing water temperature constant as well as secure comfortable washing feeling and safeness all the time by a method in which cold water is mixed with high-temperature water in a warm water-mixing valve and heating in an instant type hot water heater is controlled. CONSTITUTION:A warm water washing toilet seat device consists of a body 3 and a functional part 4, in which hot water and water are mixed in a mixing valve 14 consisting of a cold water inlet port 30, a high-temperature water inlet port 31, a mixed water outlet port 32, a valve 33, a shape-memory alloy 34, and a bias spring 35, and water of lower temperature than an adequate temperature of washing water is allowed to flow out. Warm water is sent into an instant type warm water heater 15, and the difference between temperatures detected by a temperature sensor of warm water attached to the outlet port of the heater 15 and a set value is judged and treated in a control base plate 19. A controller 17 is operated controllably to send a nearly fixed temperature of washing water to a washing nozzle 7. The temperature can be altered to an optional temperature instantly by changing the set values.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heated toilet seat device, in particular:
This is a heated water-cleaning toilet seat device that is built into a toilet installed in a unit bath, shower unit, etc.

BACKGROUND OF THE INVENTION FIG. 6 shows a conventional example of a heated water-cleaning toilet seat to be attached to a toilet bowl in a unit bath. The supply of flush water in this conventional example is stored in a hot water storage type water heater 40 provided in a functional section 39 that is separated from a main body section 37 installed on a toilet seat 36, and the hot water, which is controlled at a constant temperature, is supplied to a water pipe. Pass through 41,
It was constructed so that it was assembled into the main body part 37 and sent to the cleaning nozzle 38.

Problems to be Solved by the Invention Conventional hot water flush toilet seats have had problems such as the need for a large hot water tank to ensure a sufficient amount of flushing water, and the inability to use other heat source devices as a hot water supply source. had. In particular, it is an object of the present invention to provide a hot water type toilet seat that solves the above problems in high temperature and humid environments such as unit baths and shower units.

Means for Solving the Problems A hot water flushing toilet seat device according to the present invention includes a main body portion provided with a nozzle device, a hot water mixing valve that supplies wash water to the main body portion, an instantaneous hot water heater, and a control of the heater. The washing water is separated into a functional part with a built-in means, and after mixing cold water and high-temperature water, the washing water is heated and controlled by an instantaneous hot water heater to maintain the washing water temperature at an appropriate temperature.

Function: In the heated toilet seat device according to the present invention, cold water such as tap water flows into the cold water inlet of the hot water mixing valve, and high temperature water from a central heat source device flows into the high temperature water inlet, and the hot water is mixed. This is done, and hot water whose temperature is lower than the appropriate washing water temperature flows out from the outlet. Next, the hot water enters an instantaneous hot water heater, is heated to an optimal cleaning water temperature, and is sent to the cleaning nozzle. In this way, the optimum water temperature for washing can be obtained, but by changing the set temperature of the instantaneous hot water heater, it is possible to select a desired washing water temperature.

EXAMPLE Hereinafter, an example of the hot water type cleansing toilet seat device of the present invention will be described based on FIGS. 1 to 5.

In FIGS. 1 and 2, reference numeral 1 denotes a heated toilet seat device installed on a toilet seat 2, which is separated into a main body portion 3 and a functional portion 4. The main body 3 includes an anal cleaning nozzle 5, a cleaning nozzle 7 consisting of a bidet nozzle 6, a flow path switching valve 8, a hot air drying duct 9, and a deodorizing device 10. The functional unit 4 includes a mixing valve 14 having a cold water inflow path 11, a high temperature water inflow path 12, and an outflow path 13, an instant hot water heater 15, a drying blower unit 16, a water heater controller 17, a power transformer 18, A control board 19 is also built-in. The secondary side of the power transformer 18 supplies low voltage power to the flow path switching valve 18, the deodorizing device 10, and the main body 3. A hot water temperature sensor 20 is attached to the outlet of the instant hot water heater 15, and a signal from the sensor 20 causes the controller 1 to
7 is activated and the water temperature is maintained at the set value.

FIG. 3 shows a sectional view of the instantaneous hot water heater 15, and in the figure, 21 is a heating element 21 made of ceramic material and has a cylindrical shape. The heating element 21 is held by an outer case 22, and the outer periphery of the heating element 21 and the inner wall of the outer case 22 form a heating channel 23. 24 is an inlet, and 25 is an outlet. A hot water temperature sensor 20 is attached to the outlet 25 portion. , 26 is a protector, 27 is a temperature fuse,
28 is a lead wire of the heating element 21.

FIG. 4 is a sectional view showing an embodiment of the hot water mixing valve 14. In the figure, 29 is a main body case having a cold water inlet 30, a high temperature water inlet 31, and a mixed water outlet 32.

A valve body 33 is driven by a balance between a shape memory alloy 34 and a bias spring 35.

FIG. 5 shows the cleaning water temperature characteristics, and T is the mixing valve 14.
The hot water temperature at the outlet, To, indicates the hot water temperature at the outlet of the instantaneous hot water heater 15 (the washing water temperature).

The operation based on the above configuration will be explained.

When defecating, urinating, or cleaning their private parts, select anal cleaning or bidet cleaning using the operation section (not shown). Upon receiving the signal from this operating section, the flow path switching valve 8 opens, and the cleaning water flows toward the cleaning nozzle 7. Further, the water pressure generated by this flow causes the cleaning nozzle 7 to extend to the cleaning water spraying position, and the cleaning water is sprayed from the nozzle hole to clean the private parts.

In this cleaning process, cleaning water enters from the cold water inlet 11 and the high temperature water inlet 12, passes through the cold water inlet 30 and the high temperature water inlet 31 of the hot water mixing valve 14, and is mixed into the flow path of the shape memory alloy 34. enter. The shape memory alloy 34 is displaced to a point where the force generated by the hot water temperature after mixing and the force of the bias spring 35 are balanced, driving the valve body 33 and adjusting the opening ratio between the cold water inlet 30 and the high temperature water inlet 31. change. As a result, the temperature of the cleaning water flowing out from the shape memory alloy 34 is maintained within a certain range (see Figure 5, mixing valve outlet temperature T,
).

The cleaning water flowing out from the hot water mixing valve 14 enters the inlet 24 of the instantaneous hot water heater 15, is heated in the heating channel 23 from inside the cylinder of the heating element 21, and flows out from the outlet 25 toward the cleaning nozzle 7. . Heating in the flow path 23 is performed by measuring the difference between the temperature detected by the temperature sensor 20 and the set value on the control board 1.
The judgment and processing are carried out in the 9th section, and the controller 17 is driven and controlled. As a result, the temperatures T and I of the cleaning water flowing out from the hot water mixing valve 14 can be controlled more precisely. The wash water temperature is maintained at a nearly constant temperature (as shown in FIG. 5 by hot water heater outlet temperature T0).

This heating control makes it possible to instantly change the cleaning water temperature to any desired temperature by changing the settings.

Advantages of the Invention (1) The heated toilet seat device is separated into a main body and a functional part, and the charging part of the main body has a low voltage.

Therefore, there is no danger to the human body due to electrical leakage, and sufficient safety is ensured even in high humidity conditions such as in a unit bath.

(2) Fluctuations in the outlet temperature of the hot water mixing valve due to pressure, flow rate, and temperature fluctuations in the water source and heat source of the hot water mixing valve are also stabilized by high-speed heating control of the instantaneous hot water heater. Therefore, the temperature of the cleaning water is always stable regardless of fluctuations in the water source or heat source, and a pleasant cleaning feeling can be obtained.

(3) The heat source device can be connected to the central hot water supply circuit, allowing continuous supply of washing water. In addition, when a hot water storage type heat source device is used, hot water can be stored at a high temperature, and the heat source device can be made compact.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a warm water type cleansing toilet seat device according to an embodiment of the present invention, and FIG. 2 is a plan view of the arrangement of the warm water type cleansing toilet seat device.
Figure 3 is a sectional view of the instantaneous hot water heater of the hot water flushing toilet seat device, Figure 4 is a cross sectional view of the mixing valve of the hot water flushing toilet seat device, and Figure 5 is a sectional view of the flushing water of the hot water flushing toilet seat device. The temperature characteristic diagram, FIG. 6, is a sectional view of a conventional hot water type toilet seat device. 3...Main unit, 4...Functional unit, 7...
...Washing nozzle, 14...Hot water mixed pulp, 15...Instant hot water heater, 17...
・Controller. Name of agent: Patent attorney Shigetaka Awano 1 person 3 - Main body Figure 3 Figure 4

Claims (2)

[Claims] (1) Separately constituted by a main body including at least a private part washing nozzle device, and a functional part incorporating a hot water mixing valve for supplying washing water to the main body, an instantaneous hot water heater, and a control means for the heater, The hot water flushing toilet seat device maintains the cleansing water at an appropriate temperature by controlling the temperature of the flush water, which is a mixture of cold water and high-temperature water, using an instantaneous hot water heater. (2) The hot water mixing valve has a cold water inlet, a high temperature water inlet,
A patent that has a mixed water outlet and a configuration in which the inflow ratio of cold and hot water to the inlet is adjusted by a valve body driven by a shape memory alloy that detects mixed water and is provided at the mixed water outlet. A warm water type cleansing toilet seat device according to claim (1).