JPH10331236A - Human body private washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the accumulation of foam in a heat exchanger and the enlargement of a caliber of foam, reduce the loss of heat dissipation by making a heating device as an instantaneous type and reduce available electric energy as well as the reduction of volume of hot water due to foam-mixture. SOLUTION: A human body private washing device is equipped with an instantaneous heat type heat exchanger 12 connecting a water supply pipe 8 to a hot water pipe 15 and a washing nozzle 17, and foam from an air-pump 21 is mixed with hot water between the heat exchanger 12 and washing nozzle 7. When washing is set by an anus washing switch 25, a main magnetic valve 9 is opened to detect the flow of water with a flow sensor 11, the water is heated with the heat exchanger 12, hot water mixed with foam is supplied to human body privates from the washing nozzle 17, the interference of foam in the heat exchanger 12 is prevented, the enlargement of a caliber of foam is prevented by mixture of foam from the neighborhood of the washing nozzle 17, the loss of heat dissipation in the case of storage of hot water is reduced by water saving effect due to foam-mixture and the instantaneous type heat exchanger 12, and available electric energy is reduced accordingly.

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 with hot water.

[0002]

2. Description of the Related Art Conventionally, there is an apparatus for cleaning a human body part of this kind as shown in FIG.
No. 77).

FIG. 5 shows a supply system for washing water. A water supply pipe 2 is connected to the upstream side of the pump 1 and an air mixing section 3 is connected to the downstream side. A compressor 5 is connected to the aeration unit 3, and a cylindrical suction head 4 made of ceramic is provided inside.

[0004] With this configuration, the washing water supplied from the water supply pipe 2 is pressurized by the pump 1 and reaches the aeration unit 3. In the aeration unit 3, the air supplied from the compressor 5 is miniaturized by the suction head 4 and flows into the wash water. Further, the washing water that has passed through the aeration unit 3 is supplied to the heat exchanger 6.
Then, the hot water heated to an appropriate temperature by the heat exchanger 6 is supplied to the nozzle device 7 and jetted toward the local human body.

[0005] As a result, the cleaning water jetted from the nozzle device 7 contains bubbles, and a soft feeling can be obtained.

[0006]

However, in such a conventional local cleaning apparatus for a human body, local boiling inside the heat exchanger 6 and abnormal heating are caused.

[0007] Further, in the water from the portion where the air is mixed to the nozzle device 7, bubbles are integrated in the water and have a large diameter, and when the gas is jetted from the nozzle device 7, cleaning hot water is intermittently jetted. This was a cause of discomfort at the time and splashing of washing water.

Further, there is a problem that the heat radiation of the heat exchanger 6 cannot be reduced to reduce the amount of heating.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and comprises an instantaneous heating means, a temperature detecting means for detecting a temperature of hot water near the heating means, and a water supply to the heating means. Water supply control means for controlling, a washing nozzle connected to the hot water pipe, air bubble mixing means for mixing air bubbles into the hot water between the heating means and the cleaning nozzle, and a cleaning setting means for setting a cleaning operation of a human body part by the cleaning nozzle And a temperature setting device for setting the temperature of the hot water that has passed through the heating means, and when the washing is set by the washing setting means, the water supply control means and the heating means are controlled to heat the water by the heating means and the temperature detecting means. Is compared with the set value of the temperature setting device to adjust the heating means and to include a controller for mixing air bubbles into the hot water by the air bubble mixing means. By providing a bubble mixing means for mixing bubbles into warm water between the heat exchanger and the washing nozzle, the bubbles are prevented from accumulating in the heat exchanger and the bubbles are prevented from becoming large in diameter. By using instantaneous means, the heat radiation loss can be reduced, and the amount of electric power used can be reduced together with the reduction in the amount of warm water due to the inclusion of air bubbles.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A human body local cleaning apparatus according to a first aspect of the present invention includes an instantaneous heating means having a water supply pipe and a hot water pipe connected thereto, and a temperature detection means for detecting a temperature of hot water near the heating means. Water supply control means for controlling water supply to the heating means, a washing nozzle connected to the hot water pipe, air bubble mixing means for mixing air bubbles in hot water between the heating means and the cleaning nozzle, Cleaning setting means for setting a cleaning operation of a human body local part by a nozzle, a temperature setting device for setting a temperature of hot water passed through the heating means, and when the cleaning setting is performed by the cleaning setting means, the water supply control means, Controlling the heating means, heating the water by the heating means, comparing the detection value of the temperature detection means with the set value of the temperature setting device, adjusting the heating means, and changing the heating water by the bubble mixing means. Mind And it constitutes a control unit for performing the mixing. By mixing bubbles in the warm water between the heating means and the washing nozzle by the bubble mixing means, local boiling and abnormal heating inside the heating means due to accumulation of bubbles in the heating means are prevented, and Cleaning is required by forming a large diameter in the water and preventing intermittent feeling when ejected from the cleaning nozzle, preventing discomfort during use and splashing of the cleaning water, and configuring the heating means with an instantaneous type It is intended to reduce the power consumption by heating only when necessary.

The apparatus for cleaning a local part of a human body according to a second aspect of the present invention further includes a flow detecting means for water or hot water in addition to the constitution of the first aspect of the present invention. Heating is performed after confirming the detection of the flow of water or hot water by the detecting means. Heating is performed by the heating unit only when the flow of water or hot water is detected by the flow detection unit, thereby preventing heating when water is not flowing through the heating unit and ensuring the safety and reliability of the device. Is what you are doing.

[0012] According to a third aspect of the present invention, in addition to the configuration of the first aspect, when the temperature detected by the temperature detecting means exceeds a predetermined value,
The controller controls the water supply control means to stop the water supply. When the temperature of the hot water exceeds a predetermined value when the heating control system of the heater fails or the flow rate is reduced, the supply of the hot water is stopped by stopping the supply of the high-temperature water to the human body in the event of an abnormality. , Ensuring safety.

[0013] Further, the human body local cleaning apparatus according to a fourth invention of the present invention is characterized in that: an instantaneous heating means in which a water supply pipe and a hot water pipe are connected; a temperature detection means for detecting a temperature near the heating means; Water supply control means for controlling water supply to the heating means, a washing nozzle connected to the hot water pipe, air bubble mixing means for mixing air bubbles in hot water between the heat exchanger and the cleaning nozzle, and the cleaning nozzle Cleaning setting means for setting the cleaning operation of the human body local part, a temperature setting device for setting the temperature of the hot water passing through the heating means, flow detecting means for water or hot water, and detecting the flow of water or hot water with the flow detector. If the temperature detected by the temperature detecting means is not higher than the predetermined temperature when the temperature is not detected, a controller for heating the heating means to a predetermined time or a predetermined temperature is provided. When the washing is not used, the heating means itself is heated so that hot water at a desired temperature can be supplied within a short time during use.

[0014] In the fifth aspect of the present invention, in addition to the configuration of the fourth aspect of the present invention, the apparatus for cleaning a local part of a human body further comprises air detecting means for detecting the presence of air in the heating means. When the detection means detects the presence of air, the heating by the heating means is stopped. When air is being chewed by the heating means, heating is not performed on the heating means to prevent burning from the heating means, and the safety of the apparatus when the flow of water or hot water is not detected. Is secured.

The hot water supply apparatus according to a sixth aspect of the present invention, in addition to the configuration of the fourth aspect, further comprises a selection means for selecting heating by the heating means when water or hot water is not flowing. It is provided and configured. Then, by making it possible to select the heating by the heating means when the water or hot water is not flowing by the selecting means, when the water temperature is high such as in summer, heating is performed by the heating means when the water or hot water is not flowing. Can be selected to stop,
The aim is to achieve both improved convenience and reduced power consumption.

In a seventh aspect of the present invention, the human body cleaning apparatus according to the sixth aspect is configured such that the selecting means of the sixth aspect includes an approach detecting means for detecting an approach of a user to the toilet seat. Then, by detecting the approach of the user and heating the heating means when the washing is not used, the water or hot water is not flowing until the washing is actually performed after the use is added. The heating is performed, and the heating is selected without any operation that requires the user's special operation, thereby eliminating the operation by the user and reducing the power consumption.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 shows a human body local cleaning apparatus according to the present invention.

Water as a washing liquid is supplied from a water supply pipe 8 and is provided with a main solenoid valve 9 serving as water supply control means, a flow control valve 10 for controlling the flow rate of water, and a flow rate detection means for detecting the flow rate of water. Through the sensor 11, the heat reaches a heat exchanger 12, which is an instantaneous heating means.

The heat exchanger 12 includes a high limit switch 13 that detects an abnormal rise in the temperature of the heat exchanger and cuts off power to the heat exchanger 12, and an air detection unit that detects the presence or absence of water in the heat exchanger 12. An air detection thermistor 14 is provided.
The hot water pipe 15 near the outlet of the heat exchanger 12 is provided with a hot water thermistor 16 as temperature detecting means for detecting hot water temperature.

A cleaning nozzle unit 18 having a cleaning nozzle 17 at the end is connected to the end of the hot water pipe 15. Between the washing nozzle 17 and the heat exchanger 12, air is mixed into the hot water from a motor-driven air pump 21 which is an air mixing means provided outside via an internal air pipe 19 and an external air pipe 20.

The hot water supplied from the cleaning nozzle 17 is used for cleaning a local area of a user sitting on the toilet seat 22. The toilet seat 22 is provided with a seat switch 23 for detecting the user's seating on the toilet seat 220 as approach detection means.

An instruction to supply hot water from the cleaning nozzle 17 is given from the remote controller 24. The remote control 24 includes an anal washing switch 25, a bidet switch 26 for female local washing,
A washing stop switch 27 which is also a flow detecting means for indirectly detecting a flow stop, a flow rate and temperature control unit 28, a selection switch 29 for selecting flow rate or temperature control by the control unit 28, and stopping air bubble mixing. An anal direct injection cleaning switch 30 for performing cleaning and a bidet direct injection cleaning switch are provided. In FIG. 1, the cleaning nozzle unit 18
Shows only for the anus, but the cleaning nozzle unit for the bidet is provided separately with a similar configuration, and the expression on the figure is omitted.

Further, a controller 32 is provided for receiving a wireless signal from the remote controller 24 and controlling the components represented by the dotted lines in FIG. 1. Alternatively, when the hot water is not flowing, the heat exchanger 12
A preheating switch 33 is provided as a selection unit for selecting to perform heating by using the preheating switch 33.

FIG. 2 shows the details of the heat exchanger 12. A ceramic heater 34 for electrically heating is sandwiched between copper plates 35 and 36 provided on both sides, and resin cases 38 and 39 each having a flow path are provided outside the copper plates 35 and 36. Are copper plates 35, 36 via a sealing material 40 or the like.
Is pressed.

The high limit switch 13 is mounted on the surface of the copper plate 35, and the air detection thermistor 14 is mounted on the upper part of the case 38. FIG. 3 shows the details of the cleaning nozzle 17.

FIG. 3A is a top view of the cleaning nozzle 17 as viewed from above, and FIG. 3B is a cutaway cross-sectional view as viewed from the side. In the flow path in the cleaning nozzle 17, the cross-sectional area of the flow path gradually decreases from the flow path 41 formed in the cleaning nozzle unit 18 to the flow paths 42 and 43 in the cleaning nozzle 17, and becomes parallel near the nozzle port 44. The portion is enlarged slightly in a trumpet shape at the enlarged portion 46 via the portion 45.

With this configuration, when warm water containing air bubbles is supplied, the action caused by the air bubbles and the expansion section 4
By the operation of 6, the hot water is supplied in a state of swinging in a relatively wide range.

The Coanda phenomenon, which is generated when hot water flows from the parallel portion 45 to the enlarged portion 46 and adheres to the left or right wall, is disturbed by randomly mixed bubbles, and the jet is oscillated right and left.

When the mixing of bubbles is stopped, the hot water is discharged in a relatively narrow range in a direct injection state by the action of the parallel portion 45.
By making use of this phenomenon and selecting whether or not to mix bubbles in warm water, the washing jet can be switched between swinging and direct jetting and supplied.

FIG. 4 shows the details of the air detection thermistor 14. The periphery of the bead 47 of the thermistor is protected by a protective tube 48, and a filler 49 is filled between the two and solidified. The protection tube 48 is fixed to the heat exchanger 12 by a fixing bracket 50 and faces the flow path 37 of the hot water pipe 15.

Using this air detection thermistor 14,
The method of detecting whether the surroundings are air or water is performed by the following method. First, the temperature of the air detection thermistor 14 is measured by measuring the electric resistance of the air detection thermistor 14 itself. After the temperature is detected, the air detection thermistor 14 itself is energized and heats itself for a predetermined time.

Next, after a predetermined time has elapsed, the temperature of the air detection thermistor 14 itself is measured and compared with the temperature before heating.
When the surroundings are water (hot water), the heat radiation after heating is relatively large, so the temperature difference before and after heating is small. When the surroundings are air, the temperature difference before and after heating is large because heat radiation after heating is relatively small.

Based on the magnitude of the temperature difference, it is determined whether the surrounding is water (hot water) or air. In this series of controls, in order to make the determination accurate, the heating time is set based on the temperature before heating, and when the temperature is high, the heating time is set long, and when the temperature is low, the heating time is set short. In addition, it is determined whether the temperature is water or air based on the temperature difference between the temperature after heating and the temperature before heating, so that the influence of the ambient temperature is reduced.

Next, the configuration of the controller 32 will be described based on the operation. The controller 32 is constituted by a microcomputer. In the description of the operation, the power of the human body local cleaning device is turned on, and the preheating switch 33 provided in the controller 32 is provided.
It is assumed that has been entered.

When the user sits on the toilet seat 22, when the temperature detected by the hot water thermistor 16 is lower than a predetermined value (30 ° C.) and the air detection thermistor 14 does not detect the presence of air, the controller 32 Electricity is supplied to the heat exchanger 12 for a predetermined time (7 seconds) according to the instruction.

When the temperature exceeds 30.degree. C. by this energization, the heating waits until the temperature falls again below 30.degree. C. When the temperature falls below 30.degree.
Keep around 0 ° C.

When the temperature of the heat exchanger 12 is very low, for example, when the power is turned on, one heating does not exceed 30 ° C.
After heating for a predetermined time (7 seconds), the apparatus waits for a predetermined interval (10 seconds) and repeats heating for a predetermined time (7 seconds) again until the temperature exceeds 30 ° C.

In any case, the heating performed for a predetermined time (7 seconds) to check the temperature detected by the hot water thermistor 16 is based on the fact that the temperature change detected by the hot water thermistor 16 This is a measure for delaying due to heat transfer delay during heating due to heat capacity or uneven temperature.

When the presence of air is detected by the air detection thermistor 14, whether or not the heating by the heat exchanger 12 is performed is determined.
During the heating, the heating of the heat exchanger 12 is immediately stopped. When the anal cleaning switch 25 of the remote controller 24 is pressed in a state where the heat exchanger 12 is preheated, first, the air pump 21 is started slightly earlier than the original electromagnetic valve 9, and then the original electromagnetic valve 9 is opened. Water supply is started.

Activating the air pump 21 first is a measure for preventing water from flowing back even if the check valve (not shown) provided on the air pump 21 itself or the external air pipe 20 fails. The flow rate detected by the flow rate sensor 11 is a predetermined value (20
(0 cc / min) or more, the controller 32 starts energizing the heat exchanger 12 according to the judgment. The energization of the ceramic heater 34 is controlled by the controller 32 in which the set temperature set by the remote controller 24 and the temperature detected by the hot water thermistor 16 are compared by the controller 32 so as to eliminate the temperature deviation.

To change the set temperature, use the remote control 2
The selection switch 29 for selecting the adjustment of the flow rate and the temperature of 4 is switched to the temperature side, and the adjustment unit 28 adjusts the temperature. To change the flow rate setting, the selection switch 29 is switched to the flow rate side, and the flow rate setting is adjusted by the adjusting unit 28. The flow rate is controlled by comparing the flow rate detected by the flow rate sensor 10 with the set flow rate value by the controller 31, and adjusting the opening of the flow rate control valve 10 so as to eliminate the flow rate deviation.

The hot water adjusted to the flow rate set by the flow control valve 11 and reaching the set temperature in the heat exchanger 12 reaches the washing nozzle unit 18, where it is sent from the air pump 21 to the external air pipe 20 and the internal air pipe. The air is mixed with the air supplied through the air pipe 19, and supplied from the cleaning nozzle 17 to the human body part.

In the case of cleaning in which air is mixed in by the air pump 21, the cleaning hot water oscillates and cleans a relatively wide area of the human body by the action of the cleaning nozzle 17. In the case of cleaning with air bubbles, the cleaning nozzle 1
It has been experimentally confirmed that the improvement of the jet flow velocity and the action of air bubbles in 7 make it possible to reduce the flow rate to less than half without impairing the cleaning effect and the user's bodily sensation as compared to the conventional cleaning with hot water alone. Have been.

Further, by using the instantaneous heat exchanger 12, heat radiation loss at the time of storing hot water can be reduced as compared with the conventional hot water storage type heating means which stores hot water and prepares for use. The power consumption is reduced to about half, and the flow rate of the cleaning hot water is reduced to half, so that the power consumption can be significantly reduced.

Further, since the air pump 21 for mixing air bubbles into the hot water by the heat exchanger 12 and the washing nozzle 17 is provided, the air bubbles can be prevented from accumulating in the heat exchanger 12 and the air bubbles stay in the heat exchanger 12. However, the occurrence of local boiling and abnormal heating inside the heat exchanger 12 is prevented. In addition, since the cleaning nozzle 17 and the air-mixing portion are close to each other, bubbles are integrated in the water and the diameter becomes large, causing a sense of discontinuity when being ejected from the cleaning nozzle 17, discomfort during use, and cleaning water. Can be prevented from scattering.

Furthermore, since the flow rate of the hot water is reduced without reducing the cleaning effect by mixing bubbles in the hot water, the rated value of the electric power of the heat exchanger 12 can be halved. Due to this effect, the instantaneous heat exchanger needs to have a rating of about 2.5 KW (25 A) in consideration of the low incoming water temperature in winter, and there is a restriction of up to 15 A in general household outlets, which limits its use. What was difficult becomes available.

When the stop switch 27 is pressed, the power supply to the ceramic heater 34 is cut off, and then the original solenoid valve 9 is closed. In the case of this stop operation, before the flow rate sensor 11 becomes equal to or less than the stop side predetermined value (180 cc / min), the power supply to the ceramic heater 34 is stopped in accordance with the stop instruction of the stop switch 27, thereby ensuring safety. In this case, the stop switch 27 functions as an indirect flow detection unit.

During use, when water containing a large amount of air is sent from the water supply pipe 8 or when the flow of water is stopped, for example, when the water supply is cut off, the flow rate becomes lower than the predetermined value (180 cc / min). That is, the flow sensor 11 detects the fact that the power supply to the ceramic heater 34 is cut off, thereby preventing the boil-off and abnormal temperature rise.

At the start of flow, the flow sensor 11 detects that the flow rate exceeds a predetermined value.
Is detected, and after the water starts flowing to the ceramic heater 34 reliably and before the water stops flowing, the power is turned on and off to ensure safety.

When the temperature of the hot water exceeds a predetermined value (50 ° C.) due to the post-boiling of the heat exchanger 12 or the failure of the temperature control system of the heat exchanger, the hot water thermistor 16 detects this and immediately returns to the original solenoid valve 9. To stop the hot water supply. With this control,
Hot water is prevented from being supplied to the human body from the cleaning nozzle 17, which is a safety measure in case of emergency.

If the controller 32 fails and the hot water temperature rises, the high limit switch 13 (set at 60 ° C.)
Functions, the power of the original electromagnetic valve 9 is directly turned off from the original, the original electromagnetic valve 9 is closed, and the supply of the hot water is stopped.

When the hot water is not supplied, the operation of preheating the heat exchanger 12 is performed by first operating the air detection thermistor 1.
At 4, the presence or absence of air in the heat exchanger 12 is detected. This air detection is performed by first measuring the ambient temperature using the air detection thermistor 14. After the measurement, the air detection thermistor 14 itself is energized and self-heated for a predetermined time (3 seconds).

Next, after a lapse of a predetermined time (1 second), the temperature of the air detection thermistor 14 itself is measured and compared with the temperature before heating. When the surroundings are water (warm water), the temperature difference between before and after is small because heat radiation after heating is relatively large. When the surroundings are air, since the heat radiation after heating is relatively small, the temperature difference before and after is large. Based on this temperature difference, it is determined whether the surroundings are water (hot water) or air.

When the surroundings are air, the heating of the heat exchanger 12 by the ceramic heater 34 when the water is not passed through the heat exchanger 12 is not performed. Also, the preheating switch 33
The heat exchanger 1 by the ceramic heater 34 when water is not supplied to the heat exchanger 12 even when the
No heating of 2 is performed.

The air detection thermistor 14 alone can also serve as a preheating operation of the heat exchanger 12 when instructing to stop supplying hot water and a flow detecting means for supplying water when instructing to supply hot water.
When the user stands up from the toilet seat 22, the operation of preheating the heat exchanger 12 is stopped even if the preheating switch 33 is turned on. As means for selecting to preheat the heat exchanger 12 when water is not flowing, the seating switch 23 and the preheating switch 33
By providing the or, when it is necessary, when there is no need, the selection can be made by the user himself or automatically, and waste such as performing the preheating operation for a longer time than necessary can be prevented.

In particular, by using the seat switch 23 as the preheating selection means, it is possible to prevent the water from being blown out when the anal washing switch 25 is pressed in a state where the seat switch 23 is not seated, and to provide the preheating selection means. Two functions can be performed, and the heat exchanger 12 can be preheated while the user is busy.

Anus direct injection cleaning switch 30 of remote control 24
Is pressed, the air pump 21
Do not perform the aeration operation that drives the. In this case, due to the characteristics of the cleaning nozzle 17, the hot water is supplied in a direct injection state without swinging.

The operation of supplying and stopping the hot water when the bidet switch 26 is pressed is the same as the operation following the above-mentioned anal cleaning, and thus the detailed description is omitted. In this embodiment, the heat exchanger 12 having the ceramic heater 34 has been described as an example of the instantaneous heating means. However, the heater is electrically heated such as a sheathed heater or a heater in which a ribbon heater is insulated with mica. There may be other heating means for performing the above. There is also a method that utilizes combustion heat instead of electric heating.

Further, the hot water thermistor 16 provided near the outlet of the heat exchanger 12 has been described as an example of the temperature detecting means near the heating means. , 36. Further, other than the thermistor, other means capable of detecting temperature, such as a thermocouple or a metal resistor, may be used.

The water supply control means has been described using the primary solenoid valve 9 and the flow control valve 10 as an example. However, the water supply control means may be a single solenoid valve 9, a flow control valve 10 having a water stopping function, or a pump. You may.

The air pump 21 is used as the air bubble mixing means.
Although the above has been described as an example, a compressor, a blower, or a compressed air supply device provided centrally in a remote portion may be used. Moreover, although the anal cleaning switch 25 and the bidet cleaning switch 26 provided on the remote controller as the cleaning setting means are taken as an example, an opening / closing valve for directly opening and closing the flow path of the water supply pipe 8 and the hot water pipe 15 may be used.

Also, as the flow detecting means for water or hot water, the flow sensor 11 for directly detecting the flow of supplied water and the anal washing switch 25 for indirectly detecting the flow have been described. Or other indirect flow detection means such as pressure.

The air detection thermistor 13 has been described as an example of the air detection means. However, a method of detecting a water level by using an electrode or a float, a method of detecting the composition of air, or a method of optically detecting the presence of air. It may be a method.

As a selection means for selecting heating by the heating means when water or hot water is not flowing, the controller 32 includes a preheating switch 33 and a seating switch 23.
However, only one of them may be provided, and the preheating switch 33 may be provided on the remote controller 24. In addition, a device linked with a timer or a device wirelessly input from a remote place may be used.

As the approach detecting means, the seat switch 23 for detecting the user's seating on the toilet seat 22 has been described as an example, but the fact that the user has approached the toilet or the toilet seat can be detected by infrared rays, ultrasonic waves, or mechanically. Any detection means for detecting the data can be considered.

[0066]

As described above, the following effects can be obtained by the human body cleaning device of the present invention. Since the air from the bubble mixing means is mixed into the hot water between the heating means and the washing nozzle, local boiling and abnormal heating of the heating means due to the accumulation of bubbles in the heating means can be prevented, and the mixed air can be mixed in the water. Integrally, the diameter becomes large and it can prevent intermittent feeling when spouting from the cleaning nozzle, prevent splashing of the cleaning hot water, and since the heating means is composed of instantaneous type, heat the water only when cleaning is necessary. It is possible to reduce the heat radiation loss and the power consumption associated therewith.

By heating with the heating means only when the flow detecting means detects the flow of water or hot water, the safety and reliability of the apparatus when a large amount of air is supplied or when the water supply is cut off can be ensured.

When the temperature detected by the temperature detection means exceeds a predetermined value, the controller stops the water supply by the water supply control means so that the temperature of the hot water can be reduced when the heating control system of the heater fails or the flow rate decreases. If the value is exceeded, the supply of high-temperature water can be stopped, and safety in the event of an abnormality is ensured.

By heating the heating means itself with the heating means when the cleaning is not used, hot water at a desired temperature can be supplied within a short time during use. When the presence of air is detected by the air detection means, the heating by the heating means is not performed, thereby preventing burning of the air and ensuring the safety of the appliance.

By providing selection means for selecting heating by the heating means when the water or hot water is not flowing, the user can freely select heating by the heating means when the water or hot water is not flowing. It can improve usability.

By detecting the approach of the user to the toilet seat by the approach detecting means and heating the heating means when the washing is not used, the selection can be made without any special operation of the user. In addition, useless preheating can be prevented and operability can be further improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of a human body local cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a structural explanatory view of a main part of a heat exchanger used in the apparatus.

FIG. 3 is a top view and a partially cutaway sectional view of a cleaning nozzle used in the apparatus.

FIG. 4 is a sectional view of a main part of an air detection thermistor used in the apparatus.

FIG. 5 is a system diagram of a conventional human body cleaning device.

[Explanation of symbols]

 Reference Signs List 8 water supply pipe 9 main solenoid valve (water supply control means) 10 flow control valve (water supply control means) 11 flow sensor (flow detection means) 12 heat exchanger 14 air detection thermistor (air detection means) 15 hot water pipe 16 hot water thermistor (temperature Detecting means) 17 cleaning nozzle 21 air pump (bubble mixing means) 22 toilet seat 23 seat switch (approach detecting means) 25 anal cleaning switch (cleaning setting means) 27 stop switch (flow detecting means) 32 controller 33 selection switch (selecting means) )

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideho Shinoda 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Shinichi Maruyama 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (7)

[Claims] 1. An instantaneous heating means in which a water supply pipe and a hot water pipe are connected, a temperature detection means for detecting a temperature of hot water near the heating means, a water supply control means for controlling water supply to the heating means, A washing nozzle connected to the hot water pipe, a bubble mixing means for mixing bubbles in the hot water between the heating means and the washing nozzle, a washing setting means for setting a washing operation of a human body part by the washing nozzle, A temperature setter for setting the temperature of the hot water that has passed through the heating means, and when the washing is set by the washing setting means, the water supply control means and the heating means are controlled to heat the water by the heating means, and A human body local cleaning apparatus comprising: a controller that compares a detection value of a temperature detection unit with a set value of the temperature setting unit to adjust the heating unit and mix air bubbles into warm water by the air bubble mixing unit. 2. A method for detecting flow of water or hot water,
2. The apparatus according to claim 1, wherein the controller confirms the cleaning setting by the cleaning setting unit and the detection of the flow of water or hot water by the flow detecting unit and heats the water by the heating unit. 3. The apparatus according to claim 1, wherein when the temperature detected by the temperature detecting means exceeds a predetermined value, the controller controls the water supply controlling means to stop supplying water. 4. An instantaneous heating means in which a water supply pipe and a hot water pipe are connected, a temperature detection means for detecting a temperature near the heating means, a water supply control means for controlling water supply to the heating means, A washing nozzle connected to a hot water pipe, an air bubble mixing means for mixing air bubbles in hot water between the heat exchanger and the cleaning nozzle, a cleaning setting means for setting a cleaning operation of a human body part by the cleaning nozzle, A temperature setting device for setting the temperature of the hot water that has passed through the heating means, a flow detecting means for water or hot water, and a temperature detected by the temperature detecting means when the flow detector does not detect the flow of water or hot water. A human body local cleaning device comprising a controller for heating by a heating means to a predetermined time or a predetermined temperature when the temperature is equal to or lower than a predetermined temperature. 5. An air detecting means for detecting the presence of air in the heating means, wherein the controller stops heating by the heating means when the air detecting means detects the presence of air.
A human body local cleaning device as described in the above. 6. The human body local cleaning apparatus according to claim 4, further comprising selection means for selecting heating by the heating means when water or hot water is not flowing. 7. The human body local cleaning apparatus according to claim 6, wherein the selecting means comprises an approach detecting means for detecting an approach of the user to the toilet seat.