JPS62137334A - Sanitary washing 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 the Invention The present invention relates to a sanitary washing device that uses washing water to wash private parts after defecating.

2. Description of the Related Art A conventional sanitary cleaning device of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-18
It was disclosed in Japanese Patent No. 7933 and had a structure as shown in FIG.

In other words, you can set the flow rate to your favorite water force. Then, in order to obtain the set flow rate, a voltage corresponding to the set flow rate is applied to the motor 1 to control the pump 120 rotations.

3 is a cylinder, 4 is a tank, 6 is a heater, 6 is a solenoid valve, and 7 is a nozzle. 8 is an operation panel, 9 is a cleaning switch, 10 is a stop switch, 11 is a water force strength switch, and 12 is a five-stage IID indicating the cleaning strength.

Problems to be Solved by the Invention However, with such a structure, there is a problem in that the flow rate changes due to fluctuations in the power supply voltage, making it impossible to obtain the desired water force during cleaning.

This is due to the following reasons.

When the cleaning switch 9 is pressed, the solenoid valve 6 opens, and a voltage corresponding to the set flow rate is applied to the motor 1, causing it to rotate.

Then, the pump 2 rotates at the rotation speed of the motor 1, sucks water from the gas station 3, pressurizes it, and sends it to the tank 5.
The hot water stored in the tank 4 can be jetted out through the nozzle 7 for cleaning.

To change the water force, press the strength switch 11 and select from six levels of water force. Then, a voltage corresponding to the water force, that is, the flow rate, is applied to the motor 1, the pump 2 rotates, and cleaning can be performed at the set flow rate.

However, in such a structure, when the power supply voltage fluctuates, the voltage applied to the motor 1 changes, so the rotation speeds of the motor 1 and the pump 2 change, and the flow rate changes.

The flow rate setting is based on the power supply kc1oOV, so
If the power supply voltage fluctuates, the normal flow rate will not come out, and you may want a stronger water force but it is weak, or you want a weaker water force but it is too strong and you feel damage, or the washing water does not reach your butt and you cannot wash it. there were.

Therefore, the present invention enables cleaning at a flow rate of a flow rate setting value even if the power supply voltage changes.

Means for solving the problems and the technical means of the present invention for solving the above problems is to provide a flow rate detection means and a control section so that the input from the flow rate setting means and the input from the flow rate detection means can be connected to the control section. The water pressure means is controlled so that the flow rate of the cleaning water reaches the set value.

action The effect of this technical means is as follows.

That is, by providing the flow rate detection means, even if the flow rate starts to change due to fluctuations in voltage, etc., feedback can be applied and cleaning can be performed at the set flow rate.

The following is an implementation EFI of the present invention! i= will be explained based on the accompanying drawings.

In FIGS. 1 and 2, 20 is a toilet bowl, 21 is a 7-stern, 22 is a main body, 23 is a toilet seat rotatably connected to the main body 22, and 24 is an operating section.

25 is a pump, 26 is a motor that drives the pump 25, 2
A is a tank, 28 is a heater that boils water in the tank 27, 29 is a flow rate detection means, 30 is the rotary body unit, 31
32 is a solenoid valve, and 33 is a nozzle.

34 is a control unit that controls the motor 26 according to inputs from switches, sensors, etc. Heater 28. It drives actuators such as the electromagnetic valve 32.

35 is a cleaning switch, 36 is a stop switch, 37 is a strength switch for varying the cleaning strength, and 38 is an LED that indicates five levels of cleaning strength.

The third figure shows the configuration of the flow rate detection means 29.

The flow rate detection means 29 includes a rotating body unit 30 and a detection section 31.
It is composed of. The rotating body unit 30 has a conical guide boss 4o protruding from the inside center of a rotating body case 39, and a rotating body 41 made of magnetic metal such as ferritic stainless steel moves around the guide boss 40. A flow path 42 is configured such that the flow path 42 rotates. That is, the inlet 43 of the rotating body case 39 is connected to the guide boss 40i.
It is arranged so that it flows in from the tangential direction (X direction) of the circumference around the center. The outflow port 44 is configured to flow out in the central axis direction (Y direction) of the guide post 40. The detection unit 31 is composed of electronic components such as a magnetoresistive element 45, and detects the number of rotations of the rotating body 41 (based on water pressure generated when water flows), and generates electrical pulses. The signal is converted into a signal and sent as an input signal to a control section 34, which will be described later.

Next, the control section 34 will be explained.

The control unit 34 controls the QN of each switch of the operation unit 24.

Detection of OFF, input of signal from flow rate detection means 29 1 In response to input from temperature sensor of toilet seat 23 and tank 27, LED 38i of operation unit 24 turns on fc, sha, toilet seat 23
There is also a cleaning switch 359 and a strong/weak switch 37, which adjusts the surface temperature and water temperature in the tank by sterilizing the heater. In response to an input from the stop switch 36, a voltage is applied to the motor 26 to cause it to rotate, and the applied voltage is completely changed to control the number of rotations.

In addition, as shown in FIG. 4, the control section includes a cleaning switch 35,
The signal from the operating section (flow rate setting means) 24 of the strength switch 37 is compared with the signal from the flow rate detection means 29, and the voltage applied to the motor 26 is controlled to change the rotation speed according to the difference, and the pump It is rotated so that the flow rate is set at 25i.

Next, the operation of the configuration of this implementation will be explained.

After the user sits on the toilet seat 23 and relieves himself, the operation panel 2
When the cleaning switch 35 of No. 4 is pressed, the solenoid valve 32 opens and the motor 26. Pump 26 rotates.

When the pump 26 rotates, it sucks water from the Gistern 21,
It is pressurized and sent to tank 27. The water in the tank 27 is heated by a heater 28 and its temperature is controlled. Since it is pressurized by the pump 25, the hot water in the tank 27 can be jetted out from the nozzle 33 as washing water to wash the private parts.

At this time, the flow rate of the cleaning water spouted from the nozzle 33 is determined by the rotation speed of the pump 25, that is, the rotation speed of the motor 26, and is therefore determined by the voltage applied to the motor 26 from the control unit 34. .

That is, by fully controlling the voltage applied to the motor 26 by the control unit 34, the flow rate of the cleaning water, that is, the water force during cleaning can be changed.

This Jibushi Reli incorporates a flow rate detection means 29, and its operation will be explained below.

The water sent by the pump 26 flows to the rotating body unit 30 of the flow rate detection means 29. The rotating body 41 rotates according to the flow rate at this time, and the detection unit 31 detects the flow rate at this time as a pulse signal according to the rotation speed, and sends the signal to the control unit 34. The fourth signal is compared with the setting value set by the strength switch 37 of the operation unit 24.
As shown in the flow rate adjustment block diagram, the control unit 34 controls the voltage applied to the motor 26 according to the difference between the flow rate setting value and the flow rate detection value so that the flow rate becomes the set flow rate.
The cleaning flow rate will be lower than the set value. The flow rate sensor with this configuration has quick response and can instantly set the set flow rate.

As a result, even if the voltage applied to the motor 26 changes due to voltage fluctuations, the rotation speed of the pump 250 changes, and the flow rate changes, the flow rate detection means detects the amount of change, and the control unit controls the motor 26. Since the voltage applied to the machine is fully feedback controlled, it is possible to comfortably wash at the set flow rate at all times.

Additionally, in the past, if the power supply voltage was low when the flow rate was set to low, the flow rate would drop, and in the case of a type of nozzle that uses water pressure to protrude the nozzle 33, the nozzle would not protrude and cleaning could not be performed. This problem disappears with the actual drawing.

Next, other embodiments of the present invention will be described.

Hitherto, sanitary cleaning devices have been of the type in which the pump 25 is rotated by the motor 26 to eject cleaning water from the nozzle 33, and the flow rate is controlled by changing the voltage applied to the motor 26. In addition, there are sanitary cleaning devices such as electromagnetic pumps that completely adjust the flow rate by changing the frequency of the power supply voltage. In this case, based on the input from the flow rate detection means 29, the control unit 34 controls the frequency of the power supply applied to the electromagnetic pump in feedback to drive the electromagnetic pump so that the set flow rate is produced. This allows for comfortable cleaning at a flow rate that is less than the set value.

Effects of the Invention The present invention includes a water pressure means, a nozzle, a, an amount setting means, a flow rate detection means, and a control section, and in the control section,
The setting value set by the flow rate setting means is compared with the value detected by the flow rate detection means, and the water pressure means is controlled so that cleaning can always be performed at the set flow rate.The following effects can be obtained. can.

(1) If the user selects the desired cleaning flow rate using the setting means, cleaning can be performed comfortably at the desired cleaning flow rate even if changes occur in the power supply voltage, etc. (2) With the configuration of the present invention , the responsiveness until the set flow rate is reached, and the responsiveness from when the flow rate changes to the set flow rate are good, so it is possible to clean comfortably at the desired cleaning flow rate.

(3) Conventionally, when the power supply voltage was low and the nozzle was used at a low flow rate setting, the type of nozzle that would protrude due to water pressure would not protrude.
In some cases, cleaning was not possible, but with the present invention, cleaning can be performed at the flow rate as set, so cleaning can always be performed even at a low flow rate setting.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the water circuit configuration and electrical connections of a sanitary washing device according to an embodiment of the present invention, and Fig. 2 is the same? , ; Figure 3 is a sectional view of the flow rate detection means of the sanitary cleaning device, Figure 4 is a control block diagram of the same flow rate adjustment, and Figure 5 is the conventional one. FIG. 2 is a water circuit configuration diagram of the sanitary washing device. 24...Operation unit, 25...Pump, 26
．． -...Motor, 27...Tank, 29...
...Flow rate detection means, 33...Nozzle, 34
...Control unit, 35...Cleaning switch, 3
7... Strength switch. Name of agent: Patent attorney Toshi Nakao (1 person):!
, ``2 Uso tka 2nd figure 20 --- I further 22 each 1 salary 23-1 Iwomi, ? ~ 5 滲-t ('u part 3) - circular tbu 1 nitsu 1 4 E- One big hero 5 Leela tiles λ 44・-Ichiun H Shiro Figure 4

Claims (1)

[Claims] A private part cleaning nozzle from which wash water pressurized by a water pressure means is ejected, a flow rate setting means for setting the flow rate of the wash water supplied to the private part washing nozzle, and a flow rate detection means for detecting the flow rate. Comparing the input from the flow rate setting means and the input from the flow rate detection means in a control section,
A sanitary cleaning device that controls the water pressure means so that the flow rate of the cleaning water spouted from the nozzle becomes a set flow rate.