JPH031453B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a sanitary cleaning device for cleaning private parts.

[Prior art]

Conventionally, a sanitary cleaning device has a configuration including a cleaning nozzle that sprays hot water to clean private parts, and hot water is supplied to the cleaning nozzle by a water heater in the hot water cleaning device. The water heater is equipped with a heater and a temperature sensor, and a semiconductor switch in the control section receives a signal from the temperature sensor and controls power supply to the heater to supply hot water at a comfortable temperature.

However, when a short-circuit failure occurs in the semiconductor switch, the heater continues to be energized, causing the hot water in the water heater to overheat, resulting in dangerously high-temperature cleaning water being discharged. Some products are equipped with safety devices such as temperature fuses to prevent overheating in such abnormal situations, but since it takes time for these safety devices to operate after a short-circuit failure, cleaning water with a temperature higher than the set temperature is The disadvantage is that it is not safe to use because of the discharge of water.

[Purpose of the invention]

An object of the present invention is to prevent superheated cleaning water from being discharged in the event of an abnormality in the cleaning hot water heating system.

[Structure of the invention]

The structure of the present invention is that a sanitary cleaning device equipped with a hot water cleaning function that sprays hot cleaning water to private parts is provided with short circuit detection means for a semiconductor switch in a control section that controls energization to a heater of a water heater, and detects a short circuit in the event of a short circuit. The discharge of washing water is stopped by means.

〔Example〕

The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is a perspective view of a sanitary washing device according to the present invention, in which 1 is a toilet bowl with a toilet bowl 1a formed inside, 2
3 is a flush water tank, 3 is a heated toilet seat, and 4 is a toilet lid. Furthermore, 5 is a sanitary cleaning device main body, which has a hot water cleaning device 6 and a hot air drying device 7 inside.
A control section A for controlling the temperature and various operations of these devices 6, 7 and the heated toilet seat 3 is built in, and an operation section B is provided in the panel section. Further, 8 is a cleaning nozzle which is a part of the hot water cleaning device 6 and is movable in the direction of the toilet bowl 1a, and 9 is a hot air outlet provided near the nozzle 8.

In the above configuration, the temperature and various operations of the heated toilet seat 3, hot water washing device 6, and hot air drying device 7 are controlled by the control section A based on the set values of the operating section B. Note that the hot air drying device 7 and heated toilet seat 3 can be installed freely.

Fig. 2 is a control block diagram of the hot water cleaning device 6 system, and 10 in the figure is a water heater equipped with a temperature sensor 11 and a heater 12.
3 is provided to communicate with a water supply source such as tap water, and the heated cleaning hot water is fed in the direction of the cleaning nozzle 8.
The cleaning nozzle 8 is moved forward and backward in the direction of the toilet bowl 1a by an electric motor 14, and can jet hot water for cleaning at the first or second cleaning position, and this position and the contraction position are detected by a position detection sensor 15. There is.

The electromagnetic valve 13 and the electric motor 14 receive a signal from the operating section B, and their operation is controlled by the first control means M-1 of the control section A in response to a signal from the position detection sensor 15.

The heater 12 is the second control means M-2 of the control section A.
The temperature sensor 11 and the second control means M- of the control section A are connected to the semiconductor switch 16 built in the
2, the energization is controlled so that the temperature is suitable for cleaning.

Furthermore, 17 is a short circuit detection means for detecting a short circuit in the semiconductor switch 16, and its output signal is input to the first control means M-1 of the control section A, and is controlled to close the electromagnetic valve 13.

Regarding the operation by the above control system, when the cleaning switch S-1 of the operation section B is turned on, the electric motor 1
4, the cleaning nozzle 8 advances, and the signal from the position detection sensor 15 is transmitted to the first control means M of the control section A.
-1 receives it and stops at the cleaning position. Next, solenoid valve 1
3 is opened and cleaning water flows into the water heater 10, and hot water heated by the heater 12 is jetted out from the cleaning nozzle 8 for cleaning.

Temperature sensor 11 and second control means M of control section A
-2 controls the energization of the heater 12 to provide an amount of heat that will bring the hot water to a comfortable temperature in the water heater 10, thereby preventing the temperature from becoming abnormally low or high.

Here, if the semiconductor switch 16 is short-circuited, the short-circuit detection means 17 operates, and the first
The solenoid valve 13 can be closed through the control means M-1. Therefore, the discharge of cleaning water from the cleaning nozzle 8 is stopped, and the cleaning water that has been overheated due to continued energization of the heater 12 due to a short circuit is not discharged, and can be used safely. FIG. 3 is a flowchart for executing the control system for closing the electromagnetic valve based on this short circuit detection.

In the above embodiment, the water supply opening/closing means is the solenoid valve 13.
However, a pump may be used with the cleaning water tank 2 as a water supply source. Further, although the electric motor 14 is used as the means for advancing and retracting the cleaning nozzle 8, it is also possible to use water pressure, and the position detection sensor 15 can be freely installed.

〔effect〕

The present invention makes it possible to immediately close the flow path to the cleaning nozzle even if a short circuit occurs in the semiconductor switch of the control element that controls energization to the heater, thereby preventing abnormally high temperature cleaning water from being discharged. It has the effect that it can be used for.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a sanitary cleaning device according to the present invention;
Figure 2 is a control system block diagram of the hot water cleaning equipment;
The figure is a flowchart for detecting a short circuit in a semiconductor switch. 1...Toilet bowl, 1a...Toilet bowl, 2...Washing water tank, 3...Heating toilet seat, 4...Toilet lid, 5...Water supply heating device body, 6...Sanitary cleaning device, 7...Warm air Drying device, 8...Cleaning nozzle, 9...Hot air outlet,
10...Water heater, 11...Temperature sensor, 12...
Heater, 13... Solenoid valve, 14... Electric motor, 15
...Position detection sensor, 16...Semiconductor switch,
17...Short circuit detection means, A...Control unit, B...Operation unit, M-1...First control means, M-2...Second control means, S-1...Cleaning switch.

Claims (1)

[Scope of Claims] 1. A sanitary washing device having a hot water washing device that squirts hot water to wash private parts and an operating section that operates the hot water washing device, the hot water washing device comprising: (a) a heater and a temperature control device; A water heater that has a sensor and communicates with the water supply source; (b) A cleaning nozzle that is connected to the water heater and spouts hot cleaning water; (c) An electromagnetic device that is installed between the cleaning nozzle and the water source and opens and closes the water supply. (d) a first valve that controls the movement of the cleaning nozzle and the opening/closing of the solenoid valve based on the signal from the operating section;
(e) a second control means for controlling the temperature of hot water in the water heater to a comfortable temperature based on the output signal of the temperature sensor; (f) a semiconductor switch as a control element of the second control means; A sanitary cleaning device comprising: short circuit detection means for detecting a short circuit, transmitting an output signal thereof to the first control means, and closing the electromagnetic valve.