JPH10331235A - Human body private washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a human body privates washing device with good controllability, reduce the loss of heat dissipation by making a heating device as an instantaneous heat type heat exchanger for exchanging heat with washing liquid by heating a channel having the washing liquid flowing into a washing liquid injection device from a liquid supply pipe and to realize the reduction of available electric energy as well as the reduction of the volume of hot water due to foam-mixture. SOLUTION: A human body privates 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 when washing is set by an anus washing switch 25, first of all, an air-pump 25 is started to prevent the backflow of washing water, successively, 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, washing water mixed with air is supplied to human body privates from the washing nozzle 17, available electric energy is reduced by water saving effect due to air-mixture and instantaneous type heat exchanger 12, at the same time, in the case of stop, first of all, the main magnetic valve 9 is closed to stop the air-pump 21, hot water in the hot water pie 15, etc., is discharged with air, and front prevention measures can be taken.

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 human body local cleaning apparatus, when air is supplied before water is supplied, a large amount of air accumulates in the heat exchanger 6 and the heat exchanger 6 is cleaned. Local boiling inside and abnormal heating were caused.

[0007] In addition, the user also has to perform a plurality of operations in operation, and the user cannot master the operation without learning the operation sequence and timing according to the situation. further,
There is a problem that the heat radiation of the heat exchanger 6 cannot be reduced to reduce the amount of heating.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and heats a cleaning liquid supplied from a liquid supply pipe to eject cleaning liquid from a cleaning liquid ejecting means toward a human body part. In the human body local cleaning device, air mixing means for mixing air into the cleaning liquid, and control means configured to perform heating of the cleaning liquid by the heating means and air mixing operation by the air mixing means in an interlocked manner are provided. It is characterized by the following.

According to the present invention, it is possible to realize a human body local cleaning apparatus having good operability. Further, the heating means is an instantaneous heating type heat exchanger which heats a flow path of the cleaning liquid flowing from the liquid supply pipe to the cleaning liquid ejecting means and exchanges heat with the cleaning liquid, thereby reducing heat radiation loss and providing hot water by air bubbles. Along with the reduction in power consumption, reduction in power consumption is realized.

[0010]

The apparatus for cleaning a human body part according to the first aspect of the present invention heats the cleaning liquid supplied from the liquid supply pipe and jets the cleaning liquid from the cleaning liquid ejecting means toward the human body part. The apparatus includes an air mixing unit that mixes air into the cleaning liquid, and a control unit configured to perform heating of the cleaning liquid by a heating unit and an air mixing operation by the air mixing unit in an interlocked manner. I do.

According to a second aspect of the present invention, there is provided the human body local cleaning apparatus according to the first aspect, wherein the control means controls the control means so that the cleaning liquid is supplied to the heating means for heating the cleaning liquid after operating the air mixing means at the start of cleaning. Is started.

According to this configuration, by starting the air mixing means first, it is possible to prevent water or hot water from flowing back into the air mixing means at the start of use, thereby causing deterioration or failure. According to a third aspect of the present invention, there is provided the human body local cleaning apparatus according to the first or second aspect, wherein the control unit stops the supply of the cleaning liquid to the heating unit that heats the cleaning liquid at the end of the cleaning, and then mixes the air with the air. The means is configured to be stopped.

According to this structure, the washing water retained in the discharge means and the like from the heating means and the hot water pipe is discharged by the aeration means so that the supply of the accumulated cold water at the time of reuse is eliminated, so that the heating means can be quickly started up and the winter time can be improved. Useful for preventing freezing.

According to a fourth aspect of the present invention, in the human body local hot water supply apparatus according to the first aspect, at the end of the cleaning, the heating of the cleaning liquid by the heating means is stopped, and then the feeding of the cleaning liquid to the heating means is delayed and stopped. A flow delay control means is provided.

According to this configuration, water is allowed to flow for a while after the heating means is stopped to prevent local boiling and abnormal heating due to post-boil generated when the heating means is stopped, so that high-temperature washing water is supplied, Prevent durable deterioration of the means themselves.

According to a fifth aspect of the present invention, in the first aspect of the present invention, there is provided an air delay control means for stopping the heating of the cleaning liquid by the heating means and then delaying and stopping the aeration operation at the end of the cleaning. It is characterized by having been provided.

According to this structure, when the heating means is stopped, high-temperature hot water accumulated in the inside of the heating means, the hot water pipe, and the discharge means due to the post-boil is discharged, and the hot water is reused for a relatively short time in the human body. To prevent cold water from being supplied to the human body at the time of re-use after long periods of non-use, to promote the rise of heating means, and to freeze hot water pipes and water discharge pipes in winter. Help prevent.

The cleaning device for a human body part according to claim 6, wherein the cleaning liquid supplied from the liquid supply pipe is heated and the cleaning liquid is jetted from the cleaning liquid ejecting means toward the human body part. Air mixing means for mixing air into the cleaning liquid, and seat detection means for detecting the seating of the human body,
A control unit is configured to perform heating of the cleaning liquid by the heating unit and air mixing operation by the air mixing unit in accordance with a signal of the seating detection unit.

According to this configuration, the operations of the heating unit and the air mixing unit are linked to the signal of the seating detection unit, and the operation can be controlled only when the user sits down without any particular trouble. According to a seventh aspect of the present invention, there is provided a human body local cleaning apparatus according to any one of the first to sixth aspects, further comprising a temperature detecting means for detecting a temperature of the cleaning liquid heated by the heating means, and a control means for controlling the temperature detected by the temperature detecting means. It is characterized in that, when it is detected that the value has exceeded the value, the supply of the cleaning liquid to the heating means is stopped, and the operation of the air mixing means is also stopped.

According to this structure, when the temperature detected by the temperature detector is abnormal, the water supply is immediately stopped by the water supply control means to prevent the washing water having the abnormal temperature from being supplied to the human body. Improve safety during use.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
It will be described based on. 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 as water supply control means, a flow control valve 10 for adjusting 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 is provided with a high limit switch 13 for detecting an abnormal rise in the temperature of the heat exchanger and cutting off the power supply to the heat exchanger 12, and an air detecting means for detecting 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 as a discharge means at the end is connected to a terminal of the hot water pipe 15. The cleaning nozzle 17 is of a type in which protrusion and retraction are controlled by a motor. Cleaning nozzle 1
Between the heat exchanger 7 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 washing nozzle 17 is used for washing a local part of the 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 a washing setting means and also a flow detecting means for indirectly detecting a flow stop, a flow rate and temperature control section 28, and a selection switch 29 for selecting flow rate or temperature adjustment by the control section 28. Is provided.

Although FIG. 1 shows only the cleaning nozzle unit 18 for the anus, the cleaning nozzle unit for the bidet is provided separately in a similar configuration, and the expression on the drawing is omitted. I have.

A controller 32 for receiving a wireless signal from the remote controller 24 and controlling the components represented by dotted lines in FIG. 1 has a flow rate control means therein as flow rate delay control means. A delay control unit 30 and an air delay control unit 31 as air delay control means are formed. Further, the controller 32 is provided with a preheating switch 33 as selection means for selecting to perform heating in the heat exchanger 12 when water or hot water is not flowing.

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, 3 via a sealing material 40 or the like.
6.

The high limit switch 13 is attached to the surface of the copper plate 35, and the air detection thermistor 14 is attached to 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 of air bubbles and the enlargement portion 4
By the operation of 6, the hot water is supplied in a state of swinging in a relatively wide range.

That is, the hot water flows from the parallel portion 45 to the enlarged portion 4.
The Coanda phenomenon attached to the left or right wall that occurs when approaching 6 is disturbed by randomly mixed bubbles, and the jet flow is supplied to the right and left while oscillating.

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.

The principle of the air detection by the air detection thermistor 14 is as follows. First, the temperature is measured in advance, the air detection thermistor 14 itself is energized to perform self-heating, and after a predetermined time elapses, the temperature is measured again. Compare with temperature.

When the surroundings of the air detection thermistor 14 are water (warm water), since the heat radiation after heating is relatively large, 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 this temperature difference, it is determined whether the surroundings are water (hot water) or air.

Next, the configuration of the controller 32 as control means will be described with reference to FIG. The controller 32 is constituted by a microcomputer. The power is turned on (S1),
It is determined in step S2 that the anal washing switch 25 has been operated.
Then, in step S3, the user sets the toilet seat 2
It is checked whether the seating switch 23 is turned on while sitting on the seat 2.

When it is detected in step S3 that the seat switch 23 is on, the temperature of the hot water thermistor 16 is determined in step S4. Hot water thermistor 16
If the temperature detected at is less than a predetermined value (50 ° C.), the controller 32 determines that it is safe, and if it exceeds 50 ° C., it determines that it is dangerous.

If it is determined in step S4 that it is dangerous,
No cleaning water is supplied to the human body. This determination prevents hot water from being supplied from the cleaning nozzle 17 to the human body part, thereby ensuring safety in the event of an emergency. Note that even during use, the temperature of the hot water is reduced by 50% due to the post-boiling of the heat exchanger 12 or the failure of the temperature control system of the heat exchanger 12.
When the temperature exceeds ° C, the hot water thermistor 16 detects this and immediately stops the supply of the hot water by the original solenoid valve 9.

If it is determined in step S4 that it is safe,
In step S5, the air pump 21 is started, and in step S6
To open the original solenoid valve 9, and in step S7, the cleaning nozzle 17 is gradually protruded.

Here, the actuation of the air pump 21 first is a measure for preventing water from flowing backward even if the check mechanism of the air pump 21 itself fails. Due to this effect, water or hot water flows back into the air pump at the start of use, resulting in reduced or deteriorated performance.
Also, it is prevented from causing a failure.

Next, in step S8, it is checked whether or not the flow rate has become 0.2 liter / minute or more. When the flow rate becomes 0.2 liter / minute or more, the controller 32 determines that there is a flow of water, and in step S9, starts energization of the heat exchanger 12 and causes the ceramic heater 34 to generate heat, thereby heating the cleaning water. I do.

In step S10, the flow control valve 10 is controlled so as to obtain the flow rate set by the remote controller 24. In step S11, the temperature set by the remote controller 24 and the hot water thermistor are set so as to obtain a desired washing water temperature. The temperatures of the heat exchangers 16 are compared, and the heating amount of the heat exchanger 12 is adjusted in step S12.

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 32, and setting the flow rate control valve 1
The opening degree of 0 is adjusted.

The hot water adjusted to the set flow rate by the flow control valve 11 and adjusted to the set temperature by the heat exchanger 12 in this way reaches the washing nozzle unit 18, where the air pump 21 sends the external air pipe 20. And the air supplied through the internal air pipe 19 are mixed and discharged from the washing nozzle 17 to the human body part.

In the case of cleaning with warm water mixed with air, the cleaning water is swung over a relatively wide area of the human body by the operation of the cleaning nozzle 17 for cleaning. The flow rate is less than half without impairing the cleaning effect and the user's bodily sensation as compared with the conventional case where only hot water is used for cleaning, due to the improvement of the jet flow velocity of the cleaning nozzle 17 due to the mixing of air and the action of popping bubbles. Can be washed. This has been confirmed experimentally.

Further, by using the instantaneous heat exchanger 12 for heating the copper plates 35 and 36 by heating the ceramic heater 34 to heat the washing water, compared with the conventional hot water storage type heating means, Since the heat radiation loss at the time is eliminated, the power consumption can be reduced to about half, and the power consumption can be greatly reduced in combination with the flow rate of the washing water being reduced to half.

Further, since the air pump 21 for mixing air into the hot water is provided between the heat exchanger 12 and the washing nozzle 17, it is possible to prevent the air from being accumulated in the heat exchanger 12, To prevent local boiling and abnormal heating.

Further, since the flow rate of the hot water is reduced without mixing the air into the hot water and deteriorating the cleaning effect, the rated value of the power of the heat exchanger 12 can be halved. Due to this effect, the instantaneous heat exchanger requires a rating of about 2.5 KW (25 A) in consideration of a low incoming water temperature, and is difficult to use because there is a restriction of up to 15 A in general household outlets. What was there will be available.

The instantaneous heat exchanger 12 can continuously supply hot water. However, if it is detected in step S13 that a predetermined time (20 minutes) has elapsed in order to save energy and prevent excessive use, the flow proceeds from step S15 to step S15. The routine of S20 is executed to automatically stop the cleaning of the human body part.

Until the elapse of the predetermined time (20 minutes) is detected in step S13, the stop switch 2 is set in step S14.
7 is operated, and the detection heat exchanger 1 is checked.
The heating of the washing water by 2 and the air mixing operation by the air pump 21 continue until the stop switch 27 is operated.

When the stop switch 27 is operated and the stop is instructed, first, in step S15, the heat exchanger 12 is stopped.
Is turned off. In the case of this stop operation, the flow rate sensor 11 outputs the stop side predetermined value (0.1
Before the pressure becomes 8 liters / minute or less, the power supply to the ceramic heater 34 is stopped in accordance with the stop instruction of the stop switch 27 to ensure safety.

At the start and stop operations of the washing, the user simply operates the anal washing switch 25 or the stop switch 27 to operate the original solenoid valve 9, heat exchanger 12, and air pump 2.
The operations such as 1 can be started and stopped in conjunction with each other to improve operability, and the original solenoid valve 9, heat exchanger 12, air pump 21 and the like can be controlled freely in accordance with the state and can be used freely. Can be solved.

Then, in step S16, the flow delay control section 30 as a delay timer operates to flow water for a predetermined time through the heat exchanger 12, and then stops the original solenoid valve 9 in step (S17).

After the energization of the heat exchanger 12 is stopped, water is flowed for a while by the action of the flow delay control unit 30 to prevent local boiling and abnormal heating due to post-boiling that occurs when the heat exchanger 12 is stopped. , And the durable deterioration of the heat exchanger 12 itself is prevented.

In the case where the original solenoid valve 9 operates slowly, the action of the flow delay control can also be played by the combination of the stop switch 27 and the original solenoid valve 9. May not be provided with the flow delay control unit 30.

In step S17, the original solenoid valve 9 is stopped, and when the flow sensor 10 detects that the cleaning water is no longer supplied, the cleaning nozzle unit 19 is pulled in in step S18.

After the original solenoid valve 9 is stopped, in step S19, the air delay control unit 31 operates to activate the air pump 21 for a predetermined time.
Is continued, the air pump 21 is stopped in step S20.

As described above, in step S17, the original solenoid valve 9
After stopping the operation, the air pump 21 is stopped in step S20, so that hot water due to boiling after having accumulated in the hot water pipe 15 or the washing nozzle 17 is discharged, and is higher than the setting when reused for a relatively short time. This prevents hot water at a temperature from being supplied to the human body. Further, with this configuration, it is possible to prevent the supply of cold water to the human body part at the time of re-use after the non-use for a long time,
In addition to promoting the start-up of No. 2, it is used to prevent freezing of the hot water pipe 15 and the cleaning nozzle 17 in winter.

During use, if water containing a large amount of air is sent from the water supply pipe 8 or if the flow of water is stopped due to interruption of the water supply, the water level becomes less than the predetermined value (0.18 liter / 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.

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 normal "stop" type original electromagnetic valve 9 is directly turned off from the beginning, the original electromagnetic valve 9 is closed, and the supply of the hot water is stopped.

The operation of preheating the heat exchanger 12 when the supply of hot water is not performed is performed by firstly using the air detection thermistor 14.
The presence or absence of air in the heat exchanger 12 is detected. 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. Further, even when the preheating switch 33 is not turned on, the preheating of the heat exchanger 12 by the ceramic heater 34 is not performed. The ceramic heater 34 performs preheating until the temperature detected by the hot water thermistor 16 reaches a predetermined temperature (40 ° C.), and the temperature is quickly raised at the time of reuse.

The operation of supplying and stopping hot water when the bidet switch 26 is pressed is the same as the above-described operation at the time of washing the anus, and a detailed description thereof will be 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 may be other electric heating such as a sheathed heater or a heater in which a ribbon heater is insulated by mica. Means are also possible. There is also a method that utilizes combustion heat instead of electric heating.

Although the washing nozzle 17 which oscillates due to air mixing has been described as an example of the discharge means, it may be of a type which does not oscillate or a shower which simply discharges hot water mixed with air.

Although the main solenoid valve 9 and the flow control valve 10 have been exemplified as the water supply control means, the main solenoid valve independently provided, the flow control valve independently provided with a water stopping function, and the water pump are provided. And so on.

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

Although the example in which the flow rate delay control unit 30 is provided in the controller 32 has been described, a mechanical delay operation can be applied without any special electric circuit. The cleaning means may be combined with a specific delay operation, and at the end of the cleaning in the claims, after the heating of the cleaning liquid by the heating means is stopped, the feeding of the cleaning liquid to the heating means is delayed and stopped. The control means is configured such that the cleaning liquid is stopped after the heating operation is stopped or after the heating operation is stopped by the electric, mechanical, or fluid action. The case is also included.

Further, in an example in which the air delay control unit 31 is provided in the controller 32, the timing of turning off the power supply of the air pump 21 is delayed from the timing of stopping the supply of water to the heat exchanger 12. Although a specific example of the delay has been described, in the case of an air pump having a large inertia or a compressor having a pressure tank, the same effect can be expected without providing the air delay control unit 31 in the controller 32, At the end of the cleaning in the claims, after stopping the supply of the cleaning liquid to the heating means for heating the cleaning liquid, the heat exchanger 12
The control means, which is configured to stop the aeration means after the heating is stopped at the above, includes an electric or mechanical or fluid action, whereby the feeding of air is stopped even after the water feeding is stopped or after the heating is stopped. This also includes a case in which the feeding of air is stopped after continuing.

Further, it is assumed that the human body is seated on the toilet seat 22.
Although the description has been given by way of example, a chair or a bench may be used. Further, although the description has been given by taking the hot water thermistor 16 as an example of the temperature detecting means, other temperature detecting means such as a thermocouple or a resistor may be used.

[0071]

As described above, the following effects can be obtained by the human body cleaning device of the present invention. In a human body local cleaning apparatus for heating a cleaning liquid supplied from a liquid supply pipe and jetting the cleaning liquid from a cleaning liquid ejecting unit toward a human body part, an air mixing unit for mixing air into the cleaning liquid, a heating unit Control means configured to interlock the heating of the cleaning liquid by the air mixing means and the air mixing operation by the air mixing means, the operation of the heating means and the air mixing means can be controlled only by the setting of the cleaning setting means. In this way, both driving can be linked reliably, and it can be easily used from children to old people.

In addition to the reduction of heat radiation loss due to the instantaneous heating means and the reduction of the amount of washing water due to air mixing,
The power consumption can be significantly reduced. At the start of cleaning of the human body by the setting of the cleaning setting means, the water supply control means is operated after the air mixing means is operated.Therefore, the cleaning liquid flows back to the air mixing means at the start of use, resulting in performance degradation or deterioration. This can prevent a failure from occurring.

At the end of the cleaning of the human body by the setting of the cleaning setting means, the water supply control means is stopped, and then the aeration means is stopped, so that the cleaning liquid retained in the discharge means from the heating means or the hot water pipe is removed. This can be used to prevent the supply of a cold cleaning liquid discharged by the aeration means and promote the rise of the instantaneous heating means at the time of reuse, and also to prevent freezing of the discharge means from the hot water pipe in winter.

By controlling the delay time for stopping the water supply control means by the flow rate delay control means, the washing liquid is allowed to flow for a predetermined time after the heating means is stopped, and local boiling or abnormalities caused by post-boiling generated when the heating means is stopped. It is possible to reliably prevent the supply of cleaning water having an abnormally high temperature by eliminating heating and to prevent the heating means itself from being durably deteriorated.

After the heating means is stopped by the air delay control means, the delay time is managed to stop the air mixing means, so that the air is accumulated in the inside of the heating means, the hot water pipe, and the discharge means due to boiling after the stop. High-temperature cleaning liquid can be discharged, preventing hot water from being supplied to the human body part when reused for a relatively short time, and cold cleaning liquid to the human body part when reused after a long period of non-use. Thus, it is possible to reliably prevent the supply of water and promote the rising of the heating means.

Having an instantaneous heating means and an air mixing means,
Since the heating of the cleaning liquid by the heating means and the air mixing operation of the warm cleaning liquid by the air mixing means are performed in accordance with the signal of the seating detection means, the heating means can be operated simply by sitting without any trouble. The operation can be controlled, making it easy for the elderly and the physically handicapped to use.In addition to the reduction in heat dissipation due to the instantaneous heating means and the reduction in the amount of cleaning liquid due to air mixing, the amount of power consumption can be reduced. Significant reduction can be achieved.

When the temperature detected by the temperature detecting means for detecting the temperature of the cleaning liquid heated by the heating means exceeds a predetermined value, the water supply control means is controlled to stop the supply of the cleaning liquid, and By stopping the operation of the means, if the temperature detected by the temperature detector is abnormal, the supply of the cleaning liquid is immediately stopped to prevent the cleaning liquid having an abnormal temperature from being supplied to the human body part. , Safety can be improved.

[Brief description of the drawings]

FIG. 1 is a system diagram of a human body local cleaning apparatus 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 side 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 control flowchart of a main part of the apparatus.

FIG. 6 is a system diagram of a conventional human body local cleaning apparatus.

[Explanation of symbols]

 8 Water supply pipe 9 Main solenoid valve (water supply control means) 10 Flow control valve (water supply control means) 12 Heat exchanger (heating means) 15 Hot water pipe 16 Hot water thermistor (temperature detection means) 17 Cleaning nozzle 21 Air pump (air mixing means) 22 toilet seat 23 seat switch (seating detection means) 25 anal washing switch (wash setting means) 27 stop switch (wash setting means) 30 flow delay control unit (flow delay control means) 31 air delay control unit (air delay control means) 32 Controller (control means)

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

Claims (7)

[Claims] An apparatus for cleaning a human body local part which heats a cleaning liquid supplied from a liquid supply pipe and jets the cleaning liquid from a cleaning liquid ejecting means toward a human body part, wherein air is mixed into the cleaning liquid. A human body local cleaning apparatus comprising: a control unit configured to perform heating of a cleaning liquid by a heating unit and an aeration operation by the aeration unit in an interlocked manner. 2. The cleaning device according to claim 1, wherein the control means starts feeding of the cleaning liquid to the heating means for heating the cleaning liquid after operating the air mixing means at the start of the cleaning.
A human body local cleaning device as described in the above. 3. The control device according to claim 1, wherein at the end of the cleaning, the supply of the cleaning liquid to the heating device for heating the cleaning liquid is stopped, and then the air mixing unit is stopped. A human body local cleaning device as described in the above. 4. A human body part according to claim 1, further comprising a flow delay control means for stopping the heating of the cleaning liquid by the heating means and delaying and stopping the feeding of the cleaning liquid to the heating means at the end of the cleaning. Cleaning equipment. 5. An apparatus according to claim 1, further comprising air delay control means for stopping heating of the cleaning liquid by the heating means at the end of the cleaning and then delaying and stopping the air mixing means. 6. A human body part cleaning apparatus for heating a cleaning liquid supplied from a liquid supply pipe and ejecting the cleaning liquid from a cleaning liquid ejecting means toward a human body part, wherein air is mixed into the cleaning liquid. Means, seat detection means for detecting the seating of the human body, and control means configured to perform the heating of the cleaning liquid by the heating means and the air mixing operation by the air mixing means in conjunction with the signal of the seat detection means. Human body local cleaning equipment. 7. A temperature detecting means for detecting a temperature of the cleaning liquid heated by the heating means, and a control means for controlling the heating means when the temperature detected by the temperature detecting means exceeds a predetermined value. And stop sending the cleaning liquid
The human body local cleaning device according to any one of claims 1 to 6, wherein the operation of the air mixing means is also stopped.