JP2000204637A - Human body cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain an energy loss by providing a water supply passage for supplying wash water, an instantaneous heating system having an electric heater, a cleaning nozzle for blowing out the wash water and a supply controller, and providing a guessing device for guessing a stagnating water temperature in the heating system. SOLUTION: Wash water supplied from water supply piping 2 by opening operation of a solenoid valve 1 is heated to proper temperature hot water by a heat exchanger 4, pushes up a vacuum breaker 5, adjusts a flow rate by a flow regulating directional control valve 7, and reaches a passage directional control valve 9. Air supplied from an air pump 10 by the passage directional control valve 9 flows in the wash water, the wash water passing through the passage directional control valve 9 blows out of a passage selected by the passage directional control valve 9, and the wash water blown out of a nozzle device 11 contains bubbles, so that a soft bodily sensation is obtained. A float switch 17 is provided to detect a water level in the heat exhanger 4, and when detecting no prescribed water level by the foat switch 17, current-carrying by an electric heater is not performed to thereby prevent empty vessel heating to enhance safety.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body cleaning apparatus for cleaning a human body by heating water supplied from a water supply source to a suitable temperature of a predetermined temperature in a short time.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional human body washing apparatus of this kind. FIG. 3 is a schematic diagram showing a supply system of cleaning water. In FIG. 3, reference numeral 101 denotes a constant flow valve. A water supply pipe 102 is connected to an upstream side of the constant flow valve 101, and an electromagnetic valve 103 is connected to a downstream side. Solenoid valve 103
Is connected downstream of the vacuum breaker 104, and the downstream of the vacuum breaker 104 is branched into two, and one is a drainage pipe 105 for directly discharging excess water into the toilet.
The other end is connected to a flow control pump 105, and a heat exchanger 107 is provided downstream of the flow control pump 106.
And a flow path switching valve 108. An air pump 109 is connected to the flow path switching valve 108. With this configuration, the water supply pipe 10 is opened by opening the solenoid valve 101.
2 is supplied to the vacuum breaker 104
The flow rate is adjusted by a flow rate adjusting pump 106, heated to a suitable temperature by a heat exchanger 107, and reaches a flow path switching valve 108. In the flow path switching valve 108, the air pump 1
The air supplied from 09 flows into the washing water. Further, the washing water that has passed through the flow path switching valve 108 is ejected from the flow path selected by the flow path switching valve 108. This allows
The cleaning water ejected from the nozzle device 110 contains bubbles,
You can get a soft feeling.

FIG. 4 shows a conventional time chart.
When seating is detected by a seating switch (not shown) provided on the toilet seat (not shown), driving is started in the order of the solenoid valve 103, the flow rate adjusting pump 106, and the heat exchanger 107. Stopped. In other words, the hot water heated to the predetermined temperature is discharged into the toilet through the drainage channel 114 provided in the nozzle device 1 "10 via the flow path switching valve 108. As a result, the accumulated water in the heat exchanger 107 is replaced with hot water. (Heat Insulation Control) The air pump 109 is driven for a predetermined time substantially at the same time when the solenoid valve 103 is closed. While the air pump 109 is operating, the flow path switching valve 108 is sequentially switched to the posterior flow path 115 and the bidet flow path 116, and the water remaining in the pipe is pushed out and discharged. (Piping drain)

[0004] When a buttocks washing switch (not shown) is operated to start use, the solenoid valve 103, the flow rate adjusting pump 106, and the heat exchanger 107 are driven in this order, and hot water is discharged from the drainage passage 114 for a predetermined time ( Nozzle cleaning), then advance the nozzle (nozzle advance), the flow path switching valve 10
8 is switched to the buttocks channel 115 and the air pump 1
09 is started. (Washing)

When a stop switch (not shown) is operated to stop use, driving of the air pump 109, the heat exchanger 107, the flow rate adjustment pump 106, and the solenoid valve 103 is stopped in this order, and the flow path switching valve 108 is turned off. The nozzle is driven to switch to the drainage path 114, and the nozzle is stored (nozzle retreat). After a lapse of a predetermined time, the electromagnetic valve 103, the flow rate adjusting pump 106, and the heat exchanger 107 are driven again for a predetermined time, and the driving is stopped in the reverse order. (Post-nozzle cleaning) After stopping the operation of the solenoid valve 103, the air pump 109 is driven for a predetermined time.
A bottom switching channel 108, a bottom channel 115, a bidet channel 116;
, And water remaining in the pipe is pushed out by air and discharged. (Piping drain)

[0006]

In the above-mentioned conventional configuration,
Foamed water containing air bubbles enables comfortable washing with a soft feeling. In addition, by mixing a large amount of air bubbles into the wash water, the flow rate of the wash water spouted from the spout can be significantly increased while spreading it moderately. It is possible to clean human body parts, and as a result, water and energy can be saved. Furthermore, since the instantaneous heating type heating means, which is energized only during use, is used for heating the cleaning water, it is possible to further save energy.

[0007] Also, since the heat retention control is performed by sitting down,
Since hot water at an appropriate temperature can be discharged from an early stage of use, the user does not feel uncomfortable. However, in such a configuration, energization of the heating means cannot be started unless water is passed, and the temperature of the stagnant water in the heating means at the time of starting the control is not known. Was needed. Therefore, it was necessary to waste water during that time, and energy loss occurred. As a result, the power consumption and the amount of water used have not largely changed from those using the hot water storage type heating means that does not mix air bubbles.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a water supply path for supplying cleaning water, an instantaneous heating means having an electric heater, and a cleaning method. A human body washing apparatus including a washing nozzle for jetting water and a supply control unit for controlling supply of washing water to the washing nozzle includes an estimating unit for estimating a staying water temperature in the heating unit.

According to the above invention, the temperature of the stagnant water in the heating means can be estimated, so that the control commensurate with the water temperature can be started from the control start initialization, and unnecessary energy input can be prevented. Energy loss can be suppressed.

According to a second aspect of the present invention, in the first aspect of the present invention, the estimating means can estimate the staying water temperature without additional components by estimating the staying water temperature based on the non-energized time of the heating means. Costs can be reduced.

According to a third aspect of the present invention, in the second aspect of the present invention, a water temperature detecting means is provided upstream of the heating means, and the estimating means is provided with a correcting means for correcting the estimated staying water temperature by the water temperature detecting means. , A more accurate guess can be made.

According to a fourth aspect of the present invention, in the second aspect of the present invention, an ambient temperature detecting means for detecting an ambient temperature is provided, and the estimating means is provided with a correcting means for correcting the estimation of the stagnant water temperature by the detecting means. , A more accurate guess can be made.

According to a fifth aspect of the present invention, in the second aspect of the present invention, a hot water temperature detecting means is provided upstream of the heating means, and the estimating means is provided with a correcting means for correcting the staying water temperature estimation by the hot water temperature detecting means. As a result, more accurate estimation can be performed.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a power supply control means for controlling a power supply to the heating means in accordance with an output of the estimating means is provided. The heating control can be started with the supplied amount of current, and unnecessary input of energy can be prevented, so that energy loss can be suppressed.

According to a seventh aspect of the present invention, in the third aspect of the present invention, there is provided a power supply control means for controlling a power supply to the heating means in accordance with an output of the estimating means and an output of the water temperature detecting means. Since the heating control can be started with the amount of electricity corresponding to the water temperature from the start initialization, unnecessary energy input can be prevented, so that energy loss can be suppressed.

According to an eighth aspect of the present invention, there is provided the invention of the fourth aspect, further comprising an energization amount control means for controlling an energization amount to the heating means in accordance with the stagnant water temperature corrected by the correction means. Thus, the heating control can be started with the amount of electricity corresponding to the water temperature, and unnecessary energy input can be prevented, so that energy loss can be suppressed.

According to a ninth aspect of the present invention, in the fifth aspect of the present invention, there is provided an energization amount control means for controlling an energization amount to the heating means according to the output of the estimating means and the output of the hot water temperature detecting means. The heating control can be started from the control start initialization with the amount of electricity corresponding to the water temperature, and unnecessary energy input can be prevented, so that energy loss can be suppressed.

According to a tenth aspect of the present invention, in the invention of the seventh or ninth aspect, the energization control based on the output of the estimating means is performed only at the initial stage of the energization start. Can be started, and unnecessary energy input can be prevented, so that energy loss can be suppressed.

According to an eleventh aspect of the present invention, in the invention according to any one of the above aspects, the supply control means stops supplying the cleaning water to the heating means in response to the approach signal or the use start signal from the detection means. And an energization control means for energizing for a time.

According to the above-mentioned invention, it is possible to control the heat retention without disposing of hot water, and it is possible to discharge hot water at the start of use. Excessive water can be prevented, and the user does not feel uncomfortable at the start of water discharge.

According to a twelfth aspect of the present invention, there is provided a bubble mixing means for mixing bubbles into the washing water, and a bubble mixing section connected to the bubble mixing means.

According to the above invention, a large amount of air bubbles are mixed into the washing water, so that the washing water spouted from the jet port is diffused moderately while the flow velocity is greatly increased. In addition, it is possible to clean a human body part having extremely excellent detergency, thereby conserving water and saving energy.

According to a thirteenth aspect, in addition to the twelfth aspect, the air bubble mixing means is a positive displacement air pump, and a driving means for driving the air pump is provided.

According to the above invention, since the air pump provided as the air mixing means is driven by the driving means, a large amount of air bubbles are mixed into the washing water. Therefore, it is possible to mix the appropriate amount of air bubbles with a simple structure. Thus, it is possible to clean a human body part which is comfortable and very excellent in detergency.

According to a fourteenth aspect, in addition to the twelfth aspect, an air bubble mixing portion connected to the air bubble mixing means is provided near the ejection port of the cleaning nozzle.

According to the above invention, by providing the bubble mixing portion connected to the bubble mixing means in the vicinity of the ejection port of the cleaning nozzle, the growth of the mixed bubbles is prevented, and the cleaning including fine bubbles is performed. Comfortable cleaning of the human body can be performed with water.

[0027]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a configuration of a human body cleaning apparatus according to the present invention. FIG. 1 is a schematic diagram showing a supply system of cleaning water. In FIG. 1, reference numeral 1 denotes a constant flow valve,
A water supply pipe 2 is connected to the upstream side, and a solenoid valve 3 is connected to the downstream side. A heat exchanger 4 is connected downstream of the solenoid valve 3, and a vacuum breaker 5 is connected downstream thereof. The downstream of the vacuum breaker 5 branches in two directions, and one is a drainage pipe 6 for directly discharging excess water into the toilet.
The flow control switching valve 7 is provided on the other side. Flow control switching valve 7
Branch into two directions, one to the drainage channel 8 and the other to the flow path switching valve 9
Is connected. An air pump 10 is connected to the flow path switching valve 9 and is ejected from a selected flow path of the nozzle device 11. With this configuration, the washing water supplied from the water supply pipe 2 by the opening operation of the solenoid valve 1 is heated to a suitable temperature by the heat exchanger 4, pushes up the vacuum breaker 5, and the flow rate is adjusted by the flow control switching valve 7. The control valve 8 is reached. In the flow path switching valve 9, the air supplied from the air pump 10 flows into the washing water. Further, the washing water that has passed through the flow path switching valve 9 is jetted from the flow path selected by the flow path switching valve 9. As a result, the cleaning water spouted from the nozzle device 11 contains bubbles, so that a soft feeling can be obtained. In the present invention, a float switch 17 for detecting the water level in the heat exchanger 4 is provided, and when the predetermined water level is not detected by the float switch 17, the power supply by the electric heater is not performed, so that the empty cooking is performed. Can be prevented and safety can be improved.

FIG. 2 shows a time chart of the present invention. When the seat is detected by a seat switch (not shown) provided on the toilet seat (not shown) and a toilet lid open detection switch (not shown), the supply of the washing water is stopped by the solenoid valve 3 to the heat exchanger 4. Energize for a predetermined time. Here, the power supply time to the heating means can be changed according to the temperature detected by the water temperature detecting means 12 for detecting the temperature of the water flowing into the heat exchanger 4. Further, when the predetermined temperature is detected by the hot water temperature detecting means 13 for detecting the temperature of the hot water downstream of the heat exchanger 4, the energization is stopped, and when the hot water temperature detecting means 13 detects the predetermined temperature of −2 ° C. or less, re-energization is performed. The temperature of the hot water stored inside is kept constant. Since the inside of the piping can be replaced with the appropriate temperature water at the time of pre-cleaning, there is no fear of discomfort due to low temperature water and hot water coming out and causing burns. (Insulation control)

When a buttocks washing switch (not shown) is operated to start use, the air pump 1 is almost simultaneously operated with the solenoid valve 3.
0 is driven, and when the stable temperature is detected by the hot water temperature detecting means 13 downstream of the heat exchanger 4 or when a predetermined time has elapsed, the flow control switching valve 9 is moved from the pre-cleaning (self-cleaning) position to the drain passage 8.
Switch to. At this time, the water temperature detecting means 1 upstream of the heat exchanger 4
The time can be changed by 2 so that it can cope with the fluctuation of the incoming water temperature, and when the power saving switch is off,
Since the cleaning time at the pre-cleaning position can be delayed, there is no fear of discomfort due to low-temperature water coming out or burning due to high-temperature water coming out. Since the drainage position of the drainage channel 8 is set at a position where the nozzle can be washed, the nozzle cleaning effect is improved. (Pre-washing) When the flow control switching valve 9 is switched to the drainage path, the flow path switching valve 9 switches to the selected bottom flow path 14, bidet flow path 15, or soft flow path 16 at substantially the same time, and the nozzle is also selected. And the air pump 10 stops driving. (Nozzle extension)

When the extension of the nozzle to the selected position is completed, the flow control switching valve 9 gradually raises the water pressure from the drainage channel 8 toward the water pressure setting position, and the air pump 10 is driven substantially simultaneously (soft start, Ass washing)

When a stop switch (not shown) is operated to stop use, the flow control switching valve 9 is switched from the water pressure setting position to the drainage channel 8, and the air pump 10 stops driving almost simultaneously, and the flow path is switched. The valve 9 is switched to the self-cleaning position and the nozzle is stored. (Nozzle storage). When the storage of the nozzle is completed, the flow control switching valve 9 is switched from the drainage channel 8 to the pre-cleaning (self-cleaning) position. The driving of the solenoid valve 3 is stopped after a predetermined time has elapsed. (Washing after nozzle)
After the washing is completed, the heat retention control is performed until the seat switch (not shown) and the toilet lid open detection switch (not shown) are turned off.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a cleaning water supply system of the present invention.

FIG. 2 is a time chart of the present invention.

FIG. 3 is a schematic diagram showing a conventional cleaning water supply system.

FIG. 4 is a conventional time chart.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Constant flow valve, 2 ... Water supply piping, 3 ... Solenoid valve, 4 ... Heat exchanger 5 ... Vacuum breaker, 6 ... Waste water piping, 7 ... Flow control switching valve 8 ... Water disposal channel, 9 ... Flow switching valve, 10 ... air pump, 11
… Nozzle device 17… Float switch

Claims (14)

[Claims] 1. A water supply path for supplying cleaning water, an instantaneous heating means having an electric heater, a cleaning nozzle for jetting cleaning water, and a supply control means for controlling supply of cleaning water to the cleaning nozzle. A human body washing apparatus comprising: a human body washing apparatus comprising: an estimating means for estimating a staying water temperature in a heating means. 2. The human body cleaning device according to claim 1, wherein
The human body washing apparatus, wherein the estimating unit estimates the temperature of the staying water based on a non-energized time of the heating unit. 3. The human body cleaning device according to claim 2, wherein
A human body washing apparatus comprising: a water temperature detection means upstream of a heating means; and a correction means for correcting the estimation of the stagnant water temperature by the water temperature detection means. 4. The human body cleaning device according to claim 2,
A human body washing apparatus comprising: an ambient temperature detecting means for detecting an ambient temperature; and the estimating means includes a correcting means for correcting a stagnant water temperature estimation by the detecting means. 5. The human body cleaning device according to claim 2, wherein
A human body washing apparatus comprising: a hot water temperature detecting means downstream of the heating means; and a correcting means for correcting the staying water temperature estimation by the hot water temperature detecting means. 6. The human body cleaning device according to claim 1, wherein
A human body cleaning apparatus comprising: a power supply control means for controlling a power supply to the heating means in accordance with an output of the estimating means. 7. The human body cleaning device according to claim 3,
A human body cleaning apparatus comprising: a power supply control means for controlling a power supply to the heating means in accordance with an output of the estimating means and an output of the water temperature detecting means. 8. The human body cleaning device according to claim 4, wherein
A human body cleaning apparatus comprising: a power supply control unit that controls a power supply to the heating unit in accordance with the staying water temperature corrected by the correction unit. 9. The human body cleaning apparatus according to claim 5, wherein
A human body cleaning apparatus comprising: a power supply control means for controlling a power supply to the heating means in accordance with an output of the estimating means and an output of the hot water temperature detecting means. 10. The human body cleaning apparatus according to claim 7, wherein the energization control based on the output of the estimating means is performed only at the beginning of energization. 11. The human body cleaning device according to claim 1, wherein the supply control unit stops supplying the cleaning water in response to an approach signal or a use start signal from the detection unit. And a power supply control means for supplying power to the body for a predetermined time. 12. The human body cleaning apparatus according to claim 1, further comprising an air bubble mixing means for mixing air bubbles into the washing water, and a bubble mixing section connected to the air bubble mixing means. . 13. The human body cleaning apparatus according to claim 12, wherein the air bubble mixing means includes a positive displacement air pump and a driving means for driving the air pump. 14. The human body cleaning device according to claim 12, wherein an air bubble mixing portion connected to the air bubble mixing means is provided near a jet port of the cleaning nozzle.