JPH1137563A - Cleaning device for bathtub hot water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning device for bathtub hot water in which thermal sterilization can be attained with a device having a usual size, electrical capacity, and a usual price and having no possibility of fire burn with hot water blown out of an openable or closable lid. SOLUTION: A cleaning device for bathtub hot water is constructed such that a hot water sucking-up pipe for use in sucking up hot water from a bathtub and a hot water injection pipe for injecting hot water finished in cleaning process at a main body of cleaning device are connected directly by a bypassing pipe through a changing-over valve, a re-circulation within the main body of cleaning device is repeated to enable a thermal sterilizing operation for increasing up a temperature of hot water to be carried out, a magnetic approaching type reed switch 31 is fixed to an inverter board 24 stored in a lamp case 23 of an ultra-violet sterilization device 7 arranged adjacent to an upper end opening of the main body of the device, a magnet 19 is fixed to an UV cap 30 of an ultra-violet ray sterilization device 7 or a lid which can be opened or closed for a maintenance work such as a top cover at the main body of the device and when the reed switch 31 detects an opened state of the lid, the thermal sterilizing operation is terminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and more particularly to a bath apparatus, in which hot water in a bath tub is forcibly circulated, while filtering, sterilizing, and other cleaning treatments are performed, and at the same time, the bath temperature is maintained at a bath temperature. The present invention relates to a so-called 24-hour bath apparatus which is capable of taking a bath at any time for 24 hours while keeping a bath at any time.

[0002]

2. Description of the Related Art Recently, a bathtub hot water purifier, that is, a 24-hour bath apparatus, which keeps hot water in a bathtub constantly clean and at an appropriate temperature, enables comfortable bathing 24 hours a day, and saves water, has been used. It has become popular.

One example of such a bathtub hot water purifier is shown in FIG. 5, wherein 1 is a bathtub, 2 is hot water, 3 is a water suction pipe for pumping hot water 2 in bathtub 1, and 4 is a hot water suction pipe. The apparatus main body 9 in which cleaning processing devices for cleaning the hot water pumped up by the water suction pipe 3 are collectively provided, and the hot water cleaned by the apparatus main body 4 is ejected into the bathtub 1 again. Fountain pipe.

The apparatus main body 4 includes a circulation pump 5 for forcibly circulating hot water, a heater 6 as a heating device for maintaining the hot water at an appropriate temperature, and an ultraviolet sterilizer 7 containing an ultraviolet lamp for sterilizing the hot water with ultraviolet rays. , To remove dirt in the bath,
A cleaning device such as a filtration tank 8 in which various types of particulate filter materials such as activated stones, activated carbon, and ceramic balls are filled directly or in a bucket or a net bag is provided.

[0005] Reference numeral 10 denotes a pre-filter for removing large dirt before being pumped to the apparatus main body 4, and reference numeral 11 denotes a bathtub 1 which converts hot water after cleaning treatment into a jet stream having a high flow rate.
An intake pipe 12 ejecting into the inside is a jet nozzle connected to the ejector unit.

An electromagnetic valve 13 is provided at the end of the intake pipe 12. When the electromagnetic valve 13 is opened, the air sucked from the intake pipe 12 from the jet nozzle 11 mixes with hot water to form a bathtub 1.
Erupt into a bubble bath.

A hot water temperature sensor 14 controls the operation of the heater 6 based on the hot water temperature detected by the hot water temperature sensor 14. A bypass 15 connects the hot water suction pipe 3 and the hot water pipe 9 to each other. The hot water pipe 9 is connected to the hot water pipe 9 via a switching valve 16. By switching the switching valve 16, the flow of hot water in the hot water pipe 9 from the apparatus main body 4 is switched between the jet nozzle 11 direction and the bypass pipe 15 direction. .

When the apparatus is operated in the normal cleaning operation, the switching valve 16 is switched to the direction of the jet nozzle 11, and the hot water 2 in the bathtub 1 is turned on by the operation of the circulation pump 5.
The pre-filter of the hot water unit 10 removes large dirt beforehand, sucks it from the hot water pipe 3 and enters the apparatus main body 4, is heated to an appropriate temperature by the heater 6, sterilized by the ultraviolet sterilizer 7, and filtered by the filtration tank 8. Then, the water is jetted again from the jet nozzle 11 to the bathtub 1 through the hot water pipe 9 as a jet stream.

In this case, when the solenoid valve 13 is opened as described above, a jet stream containing air sucked from the suction pipe 12 is supplied from the jet nozzle of the hot water suction unit 11 to the bathtub 1.
Blows out into a bubble bath.

However, since hot water is very dirty and kept at a temperature suitable for the propagation of bacteria for 24 hours, it may not always be possible to completely sterilize it by merely sterilizing it with ultraviolet rays.

[0011] For this reason, bathing for 24 hours does not mean that bathing is continued for 24 hours, so that the apparatus is set to be operated in a heat sterilization mode at a time when it is not a bathing time period in each home.

Then, the switching valve 16 switches from the direction of the jet nozzle 11 to the direction of the bypass pipe 15, and the bypass pipe for recirculation, in which the hot water pipe 9 and the hot water suction pipe 3 are directly connected via the bypass pipe 15, opens.

When the bypass pipe for recirculation is opened, the hot water which has been subjected to the cleaning treatment and circulated through the apparatus main body 4 and discharged to the hot water pipe 9 is not jetted to the bathtub 1 but flows from the water suction pipe 3 to the apparatus main body 4. When the heating is repeated by the heater 6 by recirculation in this way, the hot water temperature becomes 70
It heats to ℃ and is sterilized by heat.

The use of the bypass line for recirculation as described above is very convenient because heat sterilization can be easily performed without providing a special heat sterilization device and increasing the size of the device or increasing the electric capacity. is there.

[0015]

However, in an apparatus for heat sterilization using a bypass line for recirculation, the apparatus sterilization apparatus 7 or the filtration tank disposed in the apparatus main body 4 or the apparatus main body 4 during the heat sterilization operation. There is a problem to be solved such that hot water may blow out from the openable and closable lids of the cleaning processing equipment such as the lid 8 and burn the user.

That is, the lid of the cleaning device such as the apparatus main body 4 or the ultraviolet sterilizer 7 and the filtration tank 8 provided in the apparatus main body 4 is easily opened so that the user can easily perform maintenance. It is openable and closable so that it can be used.

For this reason, there is a danger that the user first opens the lid which can be opened and closed for maintenance and the like, and starts the heat sterilization operation in a state where the lid is not properly closed, so that the user blows out from the lid which is not properly closed. A user approaching the apparatus with boiling water may get burned.

The operation of heat sterilization varies depending on the temperature of the bathroom, the set bathing temperature, the size of the apparatus, etc.
It takes 30 to 60 minutes to heat to about 0 ° C., which is a considerably long operation.

Of course, this is displayed on the apparatus during the heat sterilization operation, but without knowing that the heat sterilization operation is in progress,
Alternatively, the user may accidentally open the lid that can be opened and closed, and the user may be burned by the hot water blown from the lid.

The present invention solves the above-mentioned problems of the prior art, and can perform heat sterilization by using a bypass line for recirculation.
The user may perform a heat sterilization operation with the openable lid of the device open, or open the openable lid accidentally during the heat sterilization operation, and do not burn with the spouted hot water. An object of the present invention is to provide a bathtub cleaning device provided with a safety device.

[0021]

That is, the present invention is directed to an apparatus body in which various kinds of cleaning equipment such as a filtering device, an ultraviolet sterilizing device, and a heating device are provided by pumping hot water in a bathtub from a suction pipe by a circulation pump. In a bathtub hot water purifier that circulates water through the inside of the bath and re-blows the clean water from the fountain tube into the bathtub, the hot water in the clean tub from the main body of the bath is not blown out to the bath tub. It is returned to the hot water pipe, circulates again inside the apparatus main body, repeats heating, and opens and closes the recirculation bypass pipe line directly connecting the fountain pipe and the hot water pipe for heat sterilization by hot water heating, and the apparatus main body or the apparatus main body. A lid open / close detection sensor is provided to prevent the heat sterilization operation when the lid is open with respect to the openable lid of the cleaning processing equipment provided in the control equipment. Recirculated through the heat bypass line When the lid opening / closing detection sensor detects the opening of the lid during germs, it controls to stop the operation of the heating device and the circulation pump, so that hot water does not blow out from the place where the lid is opened and there is no danger of burns. It is a bathtub cleaning device.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention relates to a lid in which the opening and closing of a lid is detected by a magnet mounted on a lid which can be freely opened and closed and a magnetic proximity type reed switch which operates in response to magnetism. The configuration of the open / close detection sensor will be described based on the embodiment shown in FIGS.

FIG. 1 is an external perspective view of the apparatus main body 4. In the apparatus main body 4, an ultraviolet sterilizer 7 and a filtration tank 8 are provided facing an opening at an upper end so as to facilitate maintenance. The opening at the upper end is closed by a top cover 17, which is a lid that can be freely opened and closed.

The UV sterilizer 7 and the filtration tank 8 are open at the upper end for maintenance, and the UV sterilizer 7 will be described later. It is closed by the lid 18.

Reference numeral 19 denotes a magnet constituting a cover opening / closing detection sensor, which is attached to the back surface of the top cover 17 with a screw. The top cover 17 is opened / closed, and the magnet 19 approaches or separates, and the strength of the magnetic force is increased. Is changed, the magnetic proximity type reed switch is turned on and off, and this is detected.

As this reed switch, a magnetic proximity type reed switch that operates according to the strength of the magnetic force of the magnet 19 is provided on the apparatus main body side.

FIG. 2 is a longitudinal sectional view of the ultraviolet sterilizer 7, and the ultraviolet sterilizer 7 includes an ultraviolet lamp 20 having two discharge electrodes 21 disposed in a lamp tube to face each other.
The protective tube 2 has an open upper end to prevent the lamp tube from cracking.
2 and formed.

The circuit case 2 is inserted into the opening at the upper end of the protection tube 22.
3, and a circuit case 23 attached to the protection tube 22 houses an inverter board 24 in which a circuit for applying a high-frequency high voltage to two opposite electrodes 21 for discharge of the ultraviolet lamp 20 is formed. The opening at the upper end is sealed with a circuit case lid 25.

A jacket 26 through which hot water flows from an inlet 27 to an outlet 28 is attached to a mounting plate 29 at an upper portion of the apparatus main body 4.

With the above configuration, the ultraviolet sterilizer 7
Is mounted on the jacket 26 by fitting the lower part of the circuit case 23 so as to face the opening of the apparatus main body 4 so as to be detachable and coverable with a UV cap 30 which is a lid that can be opened and closed.

Reference numeral 31 denotes a magnetic proximity type reed switch as a lid open / close detection sensor, which is attached to an inverter board 24 housed in a circuit case 23.

Further, a magnet 19 is also attached to the back surface of the UV cap 30 in the ultraviolet sterilizer 7, and the opening and closing of the UV cap 30 can be detected by the reed switch 31.

As described above, when the reed switch 31 is disposed in the apparatus body or the circuit case 23 of the ultraviolet sterilizer 7,
The top cover 17 and the UV cap 3 which are openably and closably provided facing the opening of the apparatus main body 4 for maintenance.
It is well sensitive to the magnet 19 attached to the lid like 0, and it is sealed, so there is no fear of malfunction or corrosion due to dust or hot water, and it is easy to connect to the control device 32. It is convenient.

Next, based on the control block diagram of FIG. 3 and the flowchart of FIG. 4, the magnet 19 is attached to the openable top cover 17 and the UV cap 30 as the lid open / close detection sensor as described above. The control at the time of performing the heat sterilization with the device in which the reed switch 31 of the above is disposed in the ultraviolet sterilizer 7 will be described.

In FIG. 3, reference numeral 32 denotes a control device for controlling the entire apparatus. This control device 32 includes a CPU 33 as a central processing unit and a ROM 34 as a storage device for storing control data and control programs. The microcomputer is composed of a RAM 35 as a temporary storage device of data for arithmetic processing. Of course, the ROM 34 also stores a heat sterilization operation program.

Reference numeral 36 denotes a key input device. The key input device 36 includes a start / stop key for operating or stopping the device, a hot water temperature setting key for setting a hot water temperature, and a jet key for forming a bubble bath. In addition to various keys for setting normal operating conditions of the apparatus, etc., a heat sterilization operation key 37 for setting a heat sterilization operation is also provided.

A hot water temperature sensor 14 detects the temperature of hot water flowing through the pipeline, and sets a bathing temperature during normal operation and a heat sterilization temperature during heat sterilization heat operation set by a heat sterilization operation key 37. And control.

Reference numeral 38 denotes a lid open / close detection sensor for detecting the open / close of the openable / closable lid. For example, as shown in the above-mentioned embodiment, the top cover 17 and the magnet 19 attached to the UV cap 30 are provided. , A magnetic proximity type reed switch 3 provided in a circuit case 23 of an ultraviolet sterilizer 7
And 1.

39 is a circulation pump 5, 40 is a heater 6
, 41 drives the ultraviolet lamp 20, 42 drives the display device 43, a circulating pump drive circuit, a heater drive circuit,
An ultraviolet lamp driving circuit and a display device driving circuit.

The display device 43 displays various set operating conditions, hot water temperature, and the like as usual, and also displays a lid open warning to note that the openable lid has been opened. .

Next, based on the flowchart of FIG.
The control program for the heat sterilization operation stored in the OM 34 will be described.

To perform the heat sterilization operation, first, the heat sterilization operation key 37 of the key input device 36 is turned on in a first step S1.

Then, in the second step S2, the switching valve 16 for recirculating the hot water pipe 9 is automatically switched to the bypass pipe 15 side. In the third step S3, the circulation pump 5 is operated, and the hot water 2 in the bathtub 1 is turned on. After being pumped up from the water suction pipe 3 and circulating in the apparatus main body 4, it enters the apparatus main body 4 again by way of the bypass pipe 15 and repeats recirculation to start a heat sterilization operation.

Next, in a fourth step S4, the hot water temperature sensor 14
Then, the hot water is heated to 70 ° C. while detecting the hot water temperature, and the heat circulation timer is started when the hot water temperature reaches 70 ° C. in the fifth step S5. In the sixth step, the hot water temperature is 70 degrees C
The thermal cycling temperature is controlled by ON-OFF control of the heater so that In a seventh step S7, it is determined whether or not the lid open / close detection sensor 38 including the magnet 19 and the reed switch 31 detects that the openable lid such as the top cover 17 and the UV cap 30 has been opened.

In the seventh step S7, the lid opening / closing detection sensor 38
However, if it is determined that the openable lids such as the top cover 17 and the UV cap 30 are not open, the eighth step S
In step 8, it is determined whether or not a set time has elapsed by a timer. If it is determined that the set time has not elapsed, the process returns to the sixth step S6 to continue the heat circulation temperature control.

On the other hand, if the lid open / close detection sensor 38 determines in the seventh step S7 that the openable lid such as the top cover 17 and the UV cap 30 is open, the lid is opened on the display device 43 in the ninth step S9. Is displayed, and in the tenth step S10, the heater 6 is turned off.
The heating is stopped as F, and the circulation pump 5 is turned off in the eleventh step S11 to stop the heat sterilization operation.

[0047]

The present invention is constituted as described above, and can be heat sterilized by using a bypass line for recirculation without specially increasing the size and electric capacity of the apparatus, so that the sterilization is complete and the apparatus can be completely sterilized. A sensor that detects the opening and closing of the lid is provided for the lid that can be opened and closed for maintenance, so there is also a concern that the openable lid is open during heat sterilization operation and hot water blows out and burns To provide a safe and safe bathtub hot water purifier.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an apparatus main body,

FIG. 2 is a longitudinal sectional view of an ultraviolet sterilizer,

FIG. 3 is a control block diagram.

FIG. 4 is a flowchart,

FIG. 5 is a device piping diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Hot water 3 Water suction pipe 4 Device main body 5 Circulation pump 6 Heater 7 Ultraviolet sterilizer 8 Filtration tank 9 Spouting pipe 14 Hot water temperature sensor 15 Bypass pipe 16 Switching valve 17 Top cover 19 Magnet 20 Ultraviolet lamp 22 Protection pipe 23 Circuit case 24 Inverter board 26 Jacket 30 UV cap 31 Reed switch 32 Control device 36 Key input device 37 Heat sterilization operation key 38 Lid open / close detection sensor

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI C02F 1/32 A61L 2/10 F24H 1/00 302 B01D 35/02 J // A61L 2/10 F24H 1/00 602L

Claims (2)

[Claims] 1. Hot water in a bathtub is pumped from a water suction pipe by a circulation pump, and circulated in a device main body in which various cleaning processing devices such as a filtering device, an ultraviolet sterilizing device, and a heating device are provided.
In a bathtub hot water purifying device in which hot water after cleaning treatment is jetted out again from a hot water pipe into a bathtub, the hot water from the hot water pipe after cleaning treatment from the main body of the device is returned to the hot water suction pipe without being jetted into the bathtub. An openable and closable recirculation bypass line directly connecting the fountain pipe and the hot water pipe for recirculating the body and repeating the heating to increase the hot water temperature and sterilize the heat, and the apparatus body or the cleanliness arranged in the apparatus body. A bath tub hot water purifier comprising: a lid opening / closing detection sensor for preventing a heat sterilization operation in a state where the lid is open with respect to a lid that can be opened and closed for chemical processing equipment. 2. When the lid opening / closing detection sensor detects that the lid has been opened while the hot water purified by the apparatus body is being recirculated through the bypass pipe for recirculation and heat sterilized, the lid is warned. 2. The apparatus for purifying bath water according to claim 1, further comprising a control device for controlling the operation of the heating device and the circulation pump to stop.