JP3837210B2 - Bathtub cleaning equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bath apparatus, and in particular, while purifying the hot water in the bathtub, for example, filtering and sterilizing, and keeping the bath temperature at the same time, keeping the bath water constantly clean and suitable temperature, it can be used anytime for 24 hours. The present invention relates to a so-called 24-hour bath apparatus that can take a bath at the time of bathing.
[0002]
[Prior art]
Recently, bath hot water purifiers, that is, 24-hour bath devices, have been actively used, which keeps the hot water in the bath constantly clean and at a suitable temperature, can be comfortably bathed 24 hours a day, and also saves water. .
[0003]
One example of such a bath water purifier is as shown in FIG. 5, where 1 is a bathtub, 2 is hot water, 3 is a hot water pipe for pumping up hot water 2 in the bathtub 1, and 4 is a hot water pipe. The apparatus main body in which the cleaning processing equipment for purifying the hot water pumped up in 3 is collectively arranged, and the fountain pipe for respouting the hot water cleaned by the apparatus main body 4 into the bathtub 1 It is.
[0004]
The apparatus body 4 includes a circulation pump 5 for forcibly circulating hot water, a heater 6 as a heating device for keeping hot water at an appropriate temperature, an ultraviolet sterilizer 7 containing an ultraviolet lamp for ultraviolet sterilizing the hot water, In order to remove dirt, cleaning processing equipment such as a filtration tank 8 filled with various granular filter media such as activated stone, activated carbon, ceramic balls or the like directly or in a bucket or net bag is provided.
[0005]
10 is a pre-filter for removing large dirt in advance before pumping up the apparatus main body 4, and 11 is an intake pipe 12 for ejecting the hot water after the cleaning process into the bathtub 1 as a jet flow having a high flow velocity, connected to the ejector section. It is a jet nozzle.
[0006]
An electromagnetic valve 13 is provided at the tip of the intake pipe 12, and when the electromagnetic valve 13 is opened, the air sucked from the intake pipe 12 is mixed with hot water from the jet nozzle 11 and jetted into the bathtub 1 to form a bubble bath.
[0007]
Reference numeral 14 denotes a hot water temperature sensor, the control device controls the operation of the heater 6 based on the hot water temperature detected by the hot water temperature sensor 14, and 15 is a bypass pipe connecting the hot water suction pipe 3 and the fountain pipe 9. The fountain pipe 9 is connected via a switching valve 16, and the switching of the switching valve 16 switches the hot water flow in the fountain pipe 9 from the apparatus body 4 between the direction of the jet nozzle 11 and the direction of the bypass pipe 15.
[0008]
When the apparatus is operated in a normal cleaning operation, the switching valve 16 is switched in the direction of the jet nozzle 11, and the hot water 2 in the bathtub 1 is greatly soiled by the prefilter of the hot water absorption unit 10 due to the operation of the circulation pump 5. Is sucked from the hot water suction pipe 3 while being removed in advance, is heated to an appropriate temperature by the heater 6, is sterilized by the ultraviolet light by the ultraviolet sterilizer 7, is filtered by the filtration tank 8, passes through the fountain pipe 9, and the jet nozzle 11 gushes again into the bathtub 1 as a jet flow.
[0009]
In this case, when the solenoid valve 13 is opened as described above, the jet flow mixed with the air sucked from the intake pipe 12 is jetted into the bathtub 1 from the jet nozzle of the hot water suction unit 11 and becomes a bubble bath.
[0010]
However, hot water is very dirty and the temperature suitable for bacterial growth is maintained for 24 hours, so that it may not be completely sterilized only by sterilization with ultraviolet rays.
[0011]
For this reason, even though it is a 24-hour bath, bathing is not continued for 24 hours. Therefore, the apparatus is set to operate in the heat sterilization mode in anticipation of the time when it is not in the bathing time zone in each home.
[0012]
Then, the switching valve 16 is switched from the direction of the jet nozzle 11 to the direction of the bypass pipe 15, and a recirculation bypass pipe line in which the fountain pipe 9 and the hot-water pipe 3 are directly connected via the Baipay pipe 15 is opened.
[0013]
When the recirculation bypass pipe is opened, the cleaned hot water circulated through the apparatus main body 4 and discharged to the fountain pipe 9 is returned to the apparatus main body 4 from the hot water pipe 3 without being jetted to the bathtub 1. When the heating by the heater 6 is repeated by recirculation in this manner, the hot water temperature rises to 70 ° C. and is heat sterilized.
[0014]
Using the recirculation bypass pipe in this way is extremely advantageous because it can be easily heat sterilized without providing a special heat sterilizer and increasing the size of the device or increasing the electric capacity.
[0015]
[Problems to be solved by the invention]
However, in an apparatus for heat sterilization using a bypass pipe for recirculation, cleaning processing equipment such as the apparatus main body 4 or the ultraviolet sterilization apparatus 7 provided in the apparatus main body 4 and the lid of the filtration tank 8 during the heat sterilization operation. There was a problem that had to be solved such that hot water spouted from the openable / closable lid, and there was a risk that the user could be burned.
[0016]
That is, the lid of the cleaning apparatus such as the apparatus main body 4 or the ultraviolet sterilization apparatus 7 and the filtration tank 8 provided in the apparatus main body 4 can be easily opened so that the user can easily maintain the lid. It can be opened and closed freely.
[0017]
For this reason, there is a danger that the user first opens the openable / closable lid for maintenance, etc., and starts the heat sterilization operation in a state where it is not properly closed, and the hot water blown out from the lid that is not properly closed There is a risk of burns to users approaching
[0018]
The operation of heat sterilization varies depending on the temperature of the bathroom, the bathing set temperature, the size of the apparatus, etc., but it takes 30 to 60 minutes for hot water to be heated to about 70 ° C., which is a considerably long time operation.
[0019]
Of course, this is displayed on the device during the heat sterilization operation, but without knowing or forgetting that it is in the heat sterilization operation, open the openable lid accidentally, and use with hot water blown out from the lid There is a risk of burns.
[0020]
The present invention solves the problems of the prior art as described above, can be heat sterilized using a bypass pipe for recirculation, and the user performs the heat sterilization operation with the openable lid of the apparatus opened. It is an object of the present invention to provide a bathtub hot water purifier equipped with a safety device that prevents accidental opening of an openable / closable lid during a heat sterilization operation and prevents burns from the hot water that is blown out.
[0021]
[Means for Solving the Problems]
In the present invention, hot water in a bathtub is pumped up from a hot water pipe by a circulation pump, and after being cleaned in an apparatus body provided with a filtration device, an ultraviolet sterilizer, a heating device, etc. in the pipe, Switching to normal cleaning operation in which hot water in the bathtub is sucked into the main body of the apparatus by the operation of the circulation pump and purified by the operation of the circulation pump and heated to an appropriate temperature by the heater. It is switched by a valve, and the open / close recirculation bypass pipe that directly connects the fountain pipe and the hot-water pipe returns to the hot-water pipe without circulating the hot water from the fountain pipe into the bathtub and circulates in the apparatus body again. In the bathtub hot water cleaning device set to operate in a heat sterilization mode in which heat is repeatedly sterilized and heat sterilized to a hot water temperature, equipment such as the circulation pump, filtration device, sterilization device, heating device, etc. The upper end of the device body A top cover that can be freely opened and closed to cover the mouth, and a lid open / close detecting means for detecting the open / closed state of the top cover, and the lid of the lid open / close detecting means is opened for operation in the thermal sterilization mode. It was possible to solve the problem by using a bath water purifier that outputs a signal for stopping the operation in the heat sterilization mode based on the detection result.
Furthermore, the present invention draws up hot water in the bathtub from the hot water suction pipe by a circulation pump, cleans it with an apparatus main body provided with a filtration device, an ultraviolet sterilizer, a heating device, etc. in the pipe, and then from the fountain pipe to the inside of the bathtub. A normal cleaning operation in which the hot water in the bathtub is sucked into the apparatus main body from the hot water suction pipe by the operation of the circulation pump and purified by the operation of the circulation pump, and heated to an appropriate temperature by the heater; It is switched by a switching valve, and the open / close recirculation bypass pipe that directly connects the fountain pipe and the hot water pipe is returned to the hot water pipe without blowing the hot water from the fountain pipe into the bathtub. In the bathtub hot water cleaning device that is set to operate in the mode of thermal sterilization that circulates and repeats heating and heat sterilizes to hot water sterilization mode, the ultraviolet sterilization device provided in the pipe line, Protection with UV lamp And a circuit case containing an inverter board for applying a high-frequency high voltage to the ultraviolet lamp is provided in the opening at the upper end of the protective tube, a UV cap is provided to cover the circuit case, and the open / closed state of the UV cap is set. A lid opening / closing detection means for detecting is provided, and a signal for stopping the operation in the thermal sterilization mode is output based on a detection result that the lid of the lid opening / closing detection means is open with respect to the operation in the thermal sterilization mode. The problem could be solved by using a bath water cleaning device characterized by the above.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
About the embodiment of the present invention, the configuration of the lid opening / closing detection sensor that detects the opening / closing of the lid with a magnet attached to the lid that can be opened and closed and a magnetic proximity type reed switch that operates in response to magnetism, A description will be given based on the embodiment shown in FIGS.
[0023]
FIG. 1 is an external perspective view of the apparatus main body 4. The apparatus main body 4 is provided with an ultraviolet sterilizer 7 and a filtration tank 8 facing the opening at the upper end so as to facilitate maintenance. Is closed by a top cover 17 which is an openable / closable lid.
[0024]
The upper end of the ultraviolet sterilizer 7 and the filtration tank 8 are opened for maintenance. The ultraviolet sterilizer 7 will be described later. The upper end of the filtration tank 8 is opened by an openable / closable tank lid 18. close.
[0025]
Reference numeral 19 denotes a magnet constituting a lid open / close detection sensor, which is attached to the back surface of the top cover 17 by screws. When the top cover 17 is opened and closed and the magnet 19 approaches or separates, the strength of the magnetic force changes. The magnetic proximity type reed switch is turned on and off to detect this.
[0026]
As the reed switch, a magnetic proximity reed switch that operates according to the strength of the magnetic force of the magnet 19 is provided on the apparatus main body side.
[0027]
FIG. 2 shows a longitudinal sectional view of the ultraviolet sterilizer 7. The ultraviolet sterilizer 7 includes an ultraviolet lamp 20 having two discharge electrodes 21 arranged in the lamp tube facing each other, and a crack in the lamp tube. In order to prevent this, it is formed by being housed in a protective tube 22 having an open upper end.
[0028]
A circuit case 23 is attached to the opening at the upper end of the protective tube 22, and the circuit case 23 attached to the protective tube 22 is used for applying a high frequency high voltage to the two opposing electrodes 21 for discharging the ultraviolet lamp 20. The inverter board 24 on which the circuit is formed is accommodated, and the opening at the upper end is sealed with a circuit case lid 25.
[0029]
A jacket 26 through which hot water flows from the inlet 27 toward the outlet 28 is attached to the mounting plate 29 at the upper portion of the apparatus body 4.
[0030]
With the configuration as described above, the ultraviolet sterilizer 7 is fitted with the jacket 26 at the lower part of the circuit case 23 so as to face the opening of the apparatus body 4 and is detachable and can be opened and closed as a UV cap 30. It is deployed with covering.
[0031]
Reference numeral 31 denotes a magnetic proximity type reed switch as a lid opening / closing detection sensor, which is attached to the inverter board 24 housed in the circuit case 23.
[0032]
Further, in the ultraviolet sterilizer 7, a magnet 19 is also attached to the back surface of the UV cap 30, and the opening / closing of the UV cap 30 can be detected by the reed switch 31.
[0033]
Thus, when the reed switch 31 is arranged on the apparatus main body side or the circuit case 23 of the ultraviolet sterilizer 7, the top cover 17 and the UV cap 30 that are arranged to open and close to the opening of the apparatus main body 4 for maintenance. It is very sensitive to the magnet 19 attached to the lid, and it is sealed, so there is no risk of malfunction or corrosion due to dust or hot water, and connection with the control device 32 is easy. Convenient.
[0034]
Next, based on the control block diagram of FIG. 3 and the flowchart of FIG. 4, the magnet 19 is attached to the top cover 17 and the UV cap 30 that can be freely opened and closed as the lid open / close detection sensor as described above. The control when the heat sterilization operation is performed in the apparatus provided with 31 in the ultraviolet sterilizer 7 will be described.
[0035]
In FIG. 3, reference numeral 32 denotes a control device for overall control of the device. This control device 32 includes a CPU 33 as a central processing unit, a ROM 34 as a storage device storing control data and control programs, and arithmetic processing. Therefore, it is a microcomputer comprising a RAM 35 as a temporary data storage device. Of course, the ROM 34 also stores a heat sterilization operation program.
[0036]
Reference numeral 36 denotes a key input device. The key input device 36 includes devices such as an operation / 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 the various keys for setting the normal operation conditions, a heat sterilization operation key 37 for setting the heat sterilization operation is also provided.
[0037]
14 is a hot water temperature sensor which detects the temperature of hot water flowing through the pipe and controls the bathing temperature during normal operation and the heat sterilization temperature during heat sterilization heat operation set by the heat sterilization operation key 37. To do.
[0038]
Reference numeral 38 denotes a lid opening / closing detection sensor for detecting opening / closing of an openable / closable lid. For example, as shown in the above-described embodiment, the magnet 19 attached to the top cover 17 or the UV cap 30 which is an openable / closable lid, and ultraviolet sterilization. The magnetic proximity type reed switch 31 is provided in the circuit case 23 of the device 7.
[0039]
Reference numeral 39 denotes a circulation pump 5, 40 denotes a heater 6, 41 denotes an ultraviolet lamp 20, and 42 denotes a circulation pump drive circuit, a heater drive circuit, an ultraviolet lamp drive circuit, and a display device drive circuit. .
[0040]
The display device 43 displays various set operating conditions, hot water temperature, etc. as usual, and at the same time displays a lid open warning for noting that the openable / closable lid has been opened.
[0041]
Next, the control program for the heat sterilization operation stored in the ROM 34 will be described with reference to the flowchart of FIG.
[0042]
To perform the heat sterilization operation, first, the heat sterilization operation key 37 of the key input device 36 is turned ON in the first step S1.
[0043]
Then, the switching valve 16 for recirculation of the fountain pipe 9 is automatically switched to the bypass pipe 15 side in the second step S2, the circulation pump 5 is activated in the third step S3, and the hot water 2 in the bathtub 1 is absorbed in the hot water. After being pumped up from the pipe 3 and circulated in the apparatus main body 4, the heat sterilization operation is started in which the apparatus enters the apparatus main body 4 again through the bypass pipe 15 and repeats recirculation.
[0044]
Next, in the fourth step S4, hot water is heated to 70 degrees C while detecting the hot water temperature by the hot water temperature sensor 14, and when the hot water temperature reaches 70 degrees C in the fifth step S5, the thermal circulation timer is started. To do.
In the sixth step, the heat circulation temperature is controlled by ON / OFF control of the heater so that the hot water temperature becomes 70 ° C.
In a seventh step S7, it is determined whether or not the lid open / close detection sensor 38 constituted by the magnet 19 and the reed switch 31 has detected that an openable lid such as the top cover 17 or the UV cap 30 has been opened.
[0045]
When the lid open / close detection sensor 38 determines that the openable lid such as the top cover 17 or the UV cap 30 is not open in the seventh step S7, it determines whether or not the set time has elapsed in the timer in the eighth step S8, If it is determined that the time has not elapsed, the process returns to the sixth step S6 and the thermal circulation temperature control is continued.
[0046]
On the other hand, if the lid open / close detection sensor 38 determines that the openable lid such as the top cover 17 or the UV cap 30 is open in the seventh step S7, a warning that the lid is open on the display device 43 in the ninth step S9. In addition to the display, in the tenth step S10, the heater 6 is turned off to stop heating, and in the eleventh step S11, the circulation pump 5 is turned off to stop the heat sterilization operation.
[0047]
【The invention's effect】
The present invention is configured as described above, and can be thermally sterilized using a bypass pipe for recirculation without specially increasing the size and electric capacity of the device, so that sterilization is complete and for maintenance of the device. Since a sensor that detects the opening and closing of the lid is provided for the lid that can be opened and closed, the lid that can be opened and closed is open during the heat sterilization operation, so there is no worry of hot water being blown out and safe bath water. A cleaning device is provided.
[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 an apparatus piping diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bathtub 2 Hot water 3 Hot water absorption pipe 4 Apparatus main body 5 Circulation pump 6 Heater 7 Ultraviolet sterilizer 8 Filtration tank 9 Hot water pipe 14 Hot water temperature sensor 15 Bypass pipe 16 Switching valve 17 Top cover 19 Magnet 20 Ultraviolet lamp 22 Protective 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

Claims (2)

A pipe that pumps hot water in a bathtub from a hot water pipe by a circulation pump, cleans it in the main body of the pipe provided with a filtration device, ultraviolet sterilizer, heating device, etc., and then ejects it again from the hot water pipe into the bathtub A normal cleaning operation in which the hot water in the bathtub is sucked into the main body of the apparatus by the operation of the circulation pump and purified by the operation of the circulation pump and is heated to an appropriate temperature by the heater, and switched by a switching valve. The recirculation bypass conduit that directly connects the fountain pipe and the hot-water pipe can be used to return the hot water from the fountain pipe to the bathtub without circulating it into the bathtub and to circulate the inside of the apparatus body again to repeat heating. In the bath water cleaning device, which is set to operate in the mode of heat sterilization to heat sterilize the hot water to be sterilized ,
A top cover that can be freely opened and closed to cover an upper end opening of an apparatus main body that houses devices such as the circulation pump, filtration device, sterilization device, and heating device , and a lid opening and closing for detecting the open / closed state of the top cover Detecting means, and outputting a signal for stopping the operation in the heat sterilization mode based on the detection result that the lid of the lid open / close detection means is open with respect to the operation in the heat sterilization mode. Bathtub hot water purification device characterized by. A pipe that pumps hot water in a bathtub from a hot water pipe by a circulation pump, cleans it with a main body provided with a filtration device, an ultraviolet sterilizer, a heating device, etc. in the pipe, and then ejects it again from the fountain pipe into the bathtub A normal cleaning operation in which the hot water in the bathtub is sucked into the apparatus main body from the hot water suction pipe by the operation of the circulation pump and purified and heated to an appropriate temperature by the heater, and switched by a switching valve. The recirculation bypass conduit that directly connects the fountain pipe and the hot-water pipe is connected to the tub without returning the hot water from the fountain pipe to the bathtub. In a bath water cleaning device that is set to operate in a heat sterilization mode in which the temperature is sterilized by heat,
The ultraviolet sterilizer provided in the conduit includes a protective tube containing an ultraviolet lamp, and a circuit case containing an inverter board for applying a high-frequency high voltage to the ultraviolet lamp in an opening at the upper end of the protective tube. Provided with a UV cap for covering the circuit case and provided with a lid open / close detection means for detecting the open / closed state of the UV cap, and the lid of the lid open / close detection means is open for operation in the thermal sterilization mode. A bath hot water purifying apparatus characterized in that a signal for stopping the operation in the heat sterilization mode is output based on the detection result.

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