JPH0338505B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a fully automatic bath device.

(Prior art) As a conventional fully automatic bath device,
The one published in Publication No. 153059 is known.

This fully automatic bath device is equipped with a bathtub, an automatic drain valve, an automatic water supply valve, a gas burner to boil water in the bathtub, a water level sensor to detect the water level in the bathtub, and a temperature sensor to detect the temperature of the bathtub water. By operating the automatic water tap, automatic drain valve, and gas burner, everything from filling the bathtub with water to boiling it, reheating it, and draining the water is fully automated.

(Problems to be Solved by the Invention) As mentioned above, with the conventional fully automatic bath device, it takes time to boil the water supplied into the bathtub, so it is difficult to get the bath ready for bathing from the start of water supply. It took some time to get there. Therefore, it is possible to shorten the time it takes to take a bath by using an instantaneous gas water heater to supply hot water set in advance to a predetermined temperature into the bathtub, but in this case, changing the set temperature Accordingly, it is necessary to control the combustion amount of the gas burner.

In addition, the bath device described above detects the water level in the bathtub using a water level sensor installed in the bathtub, and the problem is that the installation inside the bathroom is complicated because it requires wiring between the bathtub and the controller. It was hot.

The present invention has been made in view of the above-mentioned conventional circumstances, and its purpose is to enable automatic adjustment of the hot water temperature without the need to control the combustion amount of the gas burner, and to adjust the water level in the bathtub. The object of the present invention is to provide a fully automatic bath device that can detect the amount of water supplied.

(Means for Solving the Problems) In order to achieve the above object, the fully automatic bath device of the present invention includes a fixed ring for supplying hot water to the bathtub, and an instantaneous gas water heater connected to the fixed ring.
A hot water mixing unit that includes a hot water mixing section that mixes hot water from a gas water heater and water from a water supply source at an appropriate temperature based on a command from a control means, and a water amount sensor provided on the secondary side of the hot water mixing section. It is characterized by being connected via.

(Function) According to the fully automatic bath device of the present invention, the automatic drain valve, hot water mixing unit,
The gas water heater and reheating unit are operated via the control means to automatically start and stop supplying hot water to the bathtub, reheat and drain the hot water in the bathtub, and adjust the temperature of the hot water supply. Since the hot water temperature is adjusted by mixing hot water supplied by the gas water heater and water from the water supply source in the hot water mixing section, there is no need to control the combustion amount of the burner in the gas water heater. At the same time, a water amount sensor installed in the hot water mixing unit detects the amount of hot water supplied from the hot water mixing section and detects the water level in the bathtub.
There is no need to install a water level sensor on the bathtub side.

(Effects of the Invention) Since the fully automatic bathing device of the present invention is configured as described above, it has the following effects.

Since the hot water supplied by the gas water heater is mixed at an appropriate temperature in the hot water mixing unit and then supplied into the bathtub, there is no need to control the hot water temperature by the combustion amount of the burner in the gas water heater. Even when the temperature of hot water supplied from the main body is constant at a high temperature unsuitable for bathing, hot water can be supplied at a temperature suitable for bathing.

In addition, since hot water at an appropriate temperature mixed by the hot water mixing unit is automatically supplied to the bathtub, it takes less time to get ready for bathing than with conventional fully automatic bath equipment that boils the bath water. becomes possible to shorten.

Furthermore, since there is no need to install a water level sensor in the bathtub, compared to conventional fully automatic bath equipment, installation in the bathroom can be simplified by eliminating the need for wiring between the bathtub and the controller.

(Example) The configuration of an example of carrying out the present invention will be explained with reference to FIG. 1. In the figure, a is a bathtub, b is an automatic drain plug, c is a bath lid, d is a shower, e is a fixed collar, and f is a hot water mixer. unit, g is the water heater, h is the reheating unit,
i is a control means, j is an operation panel inside the bathroom, and k is an operation panel outside the bathroom.

The structure of the automatic drain plug b will be explained with reference to FIGS. 7 to 10.

In the figure, a shows a bathtub, with an overflow opening b ₉ fitted with an elbow-shaped overflow fitting b ₈ on the upper side wall, and a drain opening b ₂ fitted with an elbow-shaped drainage fitting b ₁₀ on the bottom wall. The above-mentioned overflow fitting b ₈ and drainage fitting b ₁₀ are connected through an overflow pipe b ₁₁ , and the overflow opening part b _{9 is} connected.
A passage b ₁₃ is formed in a substantially L-shape outside the bathtub a for guiding the overflowing hot water to a drain pipe b ₁₂ connected to a drain fitting b ₁₀ .

A spindle guide b ₁₄ is attached to the overflow fitting b ₈ at the opening facing into the bathtub a, and the spindle guide
Spindle b ₁₅ is rotatably inserted and supported by b ₁₄ .

Further, a drive motor _b5 is attached to the outside of the overflow fitting _b8 , and its rotating shaft _b16 is inserted into the overflow fitting _b8 coaxially with the spindle _b15 .

A spline portion b ₁₇ is formed at the tip of the spindle b ₁₅ that extends into the overflow fitting b ₈ , while a female spline portion is formed at the tip of the rotating shaft b ₁₆ of the drive motor ₅ .
b ₁₈ is formed, and this male and female spline part
The spindle b ₁₅ and the rotating shaft b ₁₆ are non-rotatably connected via b ₁₇ and b ₁₈ .

In addition, a handle b 19 is attached to the rear end of the spindle b ₁₅ that extends inwardly so as to protrude inward from the bathtub a so as to leave a sufficient distance between the handle b ₁₉ and the side wall to cover the overflow fitting b ₉ . In addition, the above male spline part
An arm b ₂₀ is provided at a portion adjacent to the base end of b ₁₇ , and a first link mechanism r is connected to this arm b ₂₀ .

The first link mechanism r is composed of two arched rods r ₁ and r ₂ that are pivotally connected to each other, and the free end of one rod r ₁ is hooked to the arm b ₂₀ . It hangs down within the passage _b13 , and a weight body _r3 is swingably suspended from the free end, ie, the lower end, of the other rod _r2 .

Therefore, the weight body _r3 is a spindle that is linked to the manual operation of the handle _b19 and the rotation of the drive motor _b5 .
b Moves up and down by rotating ₁₅ .

On the other hand, the drain fitting b ₁₀ is provided with an opening/closing body b ₃ .

The opening/closing body _b3 consists of a stopper that fits into the drain fitting _b10 , and is formed so as to fit tightly into the opening of the drain fitting _b10 facing into the bathtub a and close the drain opening part _b2 . , a guide vane piece b ₂₁ that engages with the inner circumferential surface of the drainage fitting b ₁₀ is integrally provided below.

In addition, there is a rod shaft b ₂₂ in the center of the lower surface of the lower surface of the opening/closing body b ₃ .
is installed vertically, and the second link mechanism s is connected to the rod shaft b ₂₂ .

The second link mechanism s includes a substantially L-shaped connecting rod s ₁ whose one end is pivotally connected to the lower end of the rod shaft b ₂₂ , and the other end of this connecting rod s ₁ is bent upward but not in the opposite direction. It consists of a substantially flat V-shaped lever _s2 which is pivotally connected, and a pressure receiving part _s3 is formed at the free end of the lever _s2 .

The fulcrum part of the lever _s2 contacts the lower surface of the inner periphery of the horizontal part of the overflow pipe _b11 , and the pressure receiving part _s3 closely opposes the lower surface of the weight body _r3 at the lower end of the first link mechanism r.

Therefore, when the weight body r ₃ descends and a downward force is applied to the pressure receiving part s ₃ , the opening/closing body b ₃ is pushed up and opened, and the weight body r ₃ rises and presses the pressure receiving part s ₃ When the force against is released, the opening/closing body b ₃ descends and drain fitting b ₁₀
Fit and close.

That is, the drain port _b2 is opened and closed by manual rotation of the handle _b19 and rotational drive of the drive motor _b5 , and the first and second link mechanisms r and s constitute a drive transmission means _b4 . become.

The drive motor b ₅ is a forward/reverse rotation motor, and forward rotation operates the first and second links r and s in the opening direction, and reverse rotation operates the first and second links r and s in the closing direction. let drive motor b ₅
An example of the drive circuit is shown in FIG.

In this embodiment, the automatic drain plug b is incorporated into the system as a part of an automatic hot water supply system that automatically controls the start and stop of hot water supply to the bathtub a, the temperature of hot water, etc., as shown in Fig. 1. and the drive motor _b5 is controlled by signals from the control means i of the system.

That is, the automatic drain plug b is provided with _a drive circuit as shown in FIG. Based on switch b ₃₄
When the motor _b5 rotates forward, the drain port _b2 is opened and the remaining hot water in the bathtub a is drained. Further, when the automatic operation switch k ₂ is pressed in the above state (drain valve open state), the control means i issues a command to close the drain valve, connects the switch b ₃₄ to the closing contact, and the motor b ₅ rotates in reverse. with drain outlet
b It closes ₂ .

In either case, a timer starts at the same time as energization, and when a predetermined period of time has elapsed and the timer times up, switch b ₃₄ separates from the contact point, stops energization, and stops rotation of motor b ₅ .

The time-up time of the timer is determined so that the rotation angle of the spindle _b15 is an angle that fully opens or closes the drain port _b2 when the drive motor _b5 is at the stop position.

In addition, automatic drain plug b operates a link mechanism provided in a passage that communicates the overflow port with the drain port by operating a handle provided at the overflow port, which moves the plug-shaped opening and closing body to drain water. It is not necessarily necessary to use a so-called pop-up type drainage hub that opens and closes the spout, as described above, which is driven by a motor. Instead, a chain connected to the stopper-shaped opening/closing body can be wound up with a motor, etc., and the opening/closing body can be connected to the drain opening. It is also possible to open the cap by pulling it out by devising a guide for the cap when closing.

Alternatively, a solenoid valve may be provided in the middle of the drain pipe, or the drain fitting may be equipped with an opening/closing body composed of a fixed disk and a movable disk.

Automatic drain plug b can be opened and closed by electrical commands from the outside, so it is convenient because there is no need to go all the way to the bathroom to open and close the drain plug. The tap can be opened and the remaining hot water completely drained before being closed, so there is no need to waste hot water by supplying hot water with the tap open or overflowing when there is remaining hot water. .

The bath cover c is a foldable plate-like object that covers the bathtub a, and an automatic hot water supply inlet _c1 is provided at a location corresponding to the fixed collar e.

In addition, a suction pipe _h1 and a discharge pipe _h5 are connected to the side of bathtub a, respectively, and hot water in bathtub a is reheated to unit h.
It is configured to circulate within the

The reheating unit h is a well-known type that activates when the hot water in the bathtub cools and heats the water, and stops when the temperature exceeds a predetermined temperature to maintain the hot water in the bathtub at a constant temperature. pipe h ₁ , circulation pump
h ₂ , connecting pipe h ₃ , heat exchanger h ₄ and discharge pipe h ₅ in a circular manner, and a burner that heats the heat exchanger h ₄
Equipped with _M2 . The burner M ₂ has a governor N ₄ ,
Via the solenoid valve N ₅ , it is connected to the gas pipe with the original solenoid valve N ₆ . Said circulation pump _h2 , governor
N ₄ , solenoid valve N ₅ , and original solenoid valve N ₆ are each electrically connected to control means i, and are activated by a reheating start command from control means i to heat the hot water in bathtub a by burner M ₂ . At the same time, the heating is controlled to be stopped by a reheating stop command.

A shower d and a fixed collar e are provided in a bathroom in which a bathtub a is provided, and are connected to a hot water mixing unit f via a switching valve _V1 and a collecting pipe _l5 .

In the figure, _l1 is a water supply pipe, _l2 is a water pipe, _l3 is a hot water pipe, _l4 is a mixing water pipe, _V2 is a water valve, and _V3 is a hot water valve.

The hot water mixing unit f includes a water mixing valve f4 in a water mixing pipe _f6 connected to the water pipe _l2 , a hot water mixing valve _f5 in a hot water mixing pipe f7 connected to the hot water pipe _l3 , and a hot water mixing valve _f5 in the water mixing pipe _f7 connected to the hot water pipe l3. ₄ , and each valve f ₄ and f ₅ has a hot water mixing part whose opening degree can be adjusted by linking a motor f ₃ .
Thermistor _F1 and water flow sensor installed in mixing water pipe _L4
f ₂ . The motor _f3 is electrically connected to a control means i, and is connected to a power switch which will be described later.
k ₁ and automatic operation switch k ₂ , or hot water switch j ₁
When the start of hot water supply is commanded from the control means i by pressing , the opening degree of each valve f ₄ and f ₅ is adjusted, and the hot water supplied by the water heater g and the water from the water supply source are supplied to the bathroom operation panel. It operates to mix at the appropriate temperature set at j. Furthermore, when the control means i issues a command to stop the hot water supply when it is detected by the detection signal from the water flow sensor f ₂ that the water flow has reached the level set on the control panel outside the bathroom k, each of the valves f ₄ and f ₅ Its operation is controlled to close. The water amount sensor _f2 is a well-known sensor that detects the amount of hot water supplied to the bathtub a through the hot water mixing section and sends a detection signal thereof to the control means i.

The water heater g is one in which the reheating unit h is integrated, and includes heating banners M ₁ , M ₂ and a fan.
Equipped with _M3 . First, install the water flow sensor G ₃ on the water pipe L ₂ ,
A water supply temperature detection sensor _g2 is provided, connected to a connecting pipe _g5 via a heat exchanger _g1 , and further connected to a hot water pipe _l3 via a water flow valve _g4 .

Burner _M1 heats heat exchanger _g1 , and connects the former solenoid valve via proportional valve _N1 , solenoid valve _N2 , and governor _N3 .
Connected to a gas pipe with _N6 . Each of the above valves
N ₁ to _{N 3} , N ₆ and fan M ₃ are electrically connected to each control means i, and are activated by pressing the automatic operation switch k ₂ on the operation panel outside the bathroom k or the hot water supply switch J ₁ on the operation panel inside the bathroom j. When a command to start hot water supply is issued from the control means i, it is activated, heats water from the water supply source to a predetermined temperature, and supplies it to the hot water pipe _l2 . Further, when the control means i issues a command to stop the hot water supply at the time when the water flow rate sensor _f2 detects that the hot water flow rate has reached the hot water level set by the hot water supply level setting switch _k4 , the hot water supply is controlled to be stopped. be.

Next, to explain the bathroom outside control panel k with reference to FIG. 2, k ₁ is the power switch for the hot water mixing unit f, k ₂
is the automatic operation start/stop switch, _k3 is the automatic drain valve b drive switch, _k4 is the hot water supply amount setting switch,
K ₅ is a timer operation on/off switch, K ₆ is a timer setting switch, K ₇ is a lamp that lights up when the power is turned on, K ₈ is a lamp that lights up while hot water is being heated, K ₉ is a lamp that lights up while reheating, and K ₁₁ is a lamp that lights up when water is being drained. lit lamp, k ₁₂
is a lamp that displays the set amount of hot water, remaining amount of hot water during hot water supply, abnormal mode, etc., and _k13 is a display panel that displays the set time of the timer, etc.

Next, to explain the bathroom control panel j using Figure 3, _j1 is the switch for normal hot water supply, _j2 is the hot water supply stop switch, _j3 is the set temperature change switch, and _j4 is the switch for ringing the alarm buzzer. , _j5 is a lamp that lights up during hot water supply, and _j6 is a display panel that displays the set temperature, discharge temperature, abnormal mode, etc.

As mentioned above, the control means i includes an automatic drain plug b, a reheating unit h, a hot water mixing unit f, a water heater g,
It is electrically connected to the bathroom outside operation panel k and the bathroom interior operation panel j, and based on the operation of the bathroom outside operation panel k or the bathroom interior operation panel j, the automatic drain b and reheating unit h are activated as described above. , the hot water mixing unit f, and the water heater g.

Below, a method of operating the fully automatic bath apparatus of this embodiment will be explained.

First, automatic drainage by operating the outside bathroom operation panel k will be explained with reference to FIG. 6, and automatic operation will be explained with reference to FIG. 4.

As shown in Figure 6, the automatic drain is operated by pressing the automatic drain switch _k3 (41), which activates the automatic drain valve b, opens the drain port _b2 , and drains the remaining hot water in the bathtub a. be. At this time, lamp _k11 lights up (42).

Automatic operation is mainly performed by manual operation by directly operating the operating panel k outside the bathroom, but it can also be performed by timer operation using the timer setting switch _k6 or telecontrol operation using a telephone.

For manual operation, first turn on the power switch _k1 (1), then turn on the automatic operation switch k2 ( ₂ ), the automatic drain valve b operates, closes the drain part _b2 , and the hot water mixing unit f starts. It operates to adjust the hot water from the water heater g and the water from the water supply source to the appropriate temperature (e.g.
Adjust the opening degrees of valves f ₄ and f ₅ to mix at a temperature of 40°C.
Hot water at an appropriate temperature is supplied to the bathtub a by the operation of the water heater g. Furthermore, when it is detected that the amount of hot water preset by the hot water amount setting switch _k4 has been reached based on the detection signal from the water amount sensor _f2 (5), the control means i starts the operation of the hot water mixing unit f and the water heater g. The hot water supply is then controlled to end (6).

Reheating control starts at the same time as hot water supply ends (7).
The reheating timer also starts counting. When the hot water in the bathtub a cools down, the reheating unit h operates, and when the temperature reaches a predetermined temperature or higher, the reheating unit h stops, and when the water cools down again and falls below the predetermined temperature, reheating is resumed to keep the water temperature constant. Keep (8). Then, if the power switch _k1 is turned off even during the reheating control (9),
The reheating control ends (10), and if the reheating timer times up (for example, if the preset time of 6 hours is counted), the reheating control ends (10).

Next, the timer operation will be explained with reference to FIG.

Turn on power switch k ₁ (11) to set the tire time and turn on timer switch k ₅
Turn on (12). When the set time comes (13), the automatic drain valve b is closed (3), and the following operations (4) to (10) are performed in sequence.

Next, the teleconverter operation will be explained.

In order to carry out the teleconverter operation, a telephone is connected in advance to the control means i in FIG. 1 via a not-shown telephony controller (teleconverter).
The configuration is such that commands can be given to the control means i using a telephone.

First, before going out, turn on the power switch _k1 on the control panel outside the bathroom (21), and turn on the go-out button on the teleconverter so that it can receive signals (22).

When the hot water mixing unit f is activated by calling home and using the password (23), the following operations (3) to (10) are performed in sequence.

Next, the operation by operating the bathroom control panel j will be explained with reference to FIG. 5. After setting the hot water temperature with the set temperature change switch _j3 (31), pressing the hot water supply switch _j1 32), hot water supply is started as described above in response to a hot water supply start command from the control means i (33),
When hot water supply stop switch j ₂ is pressed (34), control means i
Hot water supply stops due to hot water supply stop command from (35)
It is something.

Modifications of each component will be described below.

As a second embodiment, a modified example of the water heater g and the reheating unit h will be explained with reference to the configuration diagram of FIG. 11.
etc., and the bathtub a, bath lid c, shower d, fixed collar e, hot water mixing unit f, operation panels j, k, etc., which are not explained in detail, are the same as in the first embodiment, and their explanation will be omitted.

In this embodiment, as shown in _FIG.
It circulates in a circle from the water pipe L ₂ connected to the hot water pipe G, through the connecting pipe G ₅ , through the heating pipe G ₆ in the heat exchanger H ₄ , to the circulation pipe L ₁₀ , and connects the heat exchanger H ₄ and the water heater G. The hot water that serves as a heat source for reheating is circulated between the

In addition, the water supply pipe _l1 is equipped with a check valve _l9 ,
The hot water in the circulation paths l ₂ , g, g ₅ , g ₆ , l ₁₀ is supplied to the water supply pipe l ₁
It is designed so that it does not flow backwards.

The heating pipe _g6 is provided with a check valve _l11 on the outbound side to the heat exchanger _h4 , and a circulation pump _g7 for forcedly circulating hot water on the return side from the heat exchanger _h4 . It is provided.

The operation of the circulation pump _g7 is prohibited when bath water is supplied. That is, hot water mixing pipe
Flow switch that senses the flow of water in _f6 and closes
g ₈ is provided, and the switch g ₈ is connected to the circulation pump g ₇ so that the circulation pump g ₇ is not operated when the flow switch g ₈ is closed.

Bath water circulation paths h ₁ and h ₅ connected to the bathtub a are led to the heat exchanger h ₄ , and these circulation paths h ₁ and h ₅ are connected to the bathtub a.
The bath water is heated through a heat exchanger _h4 .

The circulation path _h5 is provided with a thermostat h6 that senses the temperature of the bath water and operates the circulation pump _g7 in the heating pipe _g6 , and the circulation path _h1 is provided with _a thermostat for forcibly circulating the bath water. A circulation pump _h2 is provided.

The circulation pump _h1 is always operating, and the bathtub a
The bath water inside the bath is circulated to make the temperature uniform.

In the second embodiment as described above, a predetermined amount of bath water at a desired temperature is supplied by the hot water mixing unit f,
When the temperature of the bath water drops after the hot water supply is stopped,
Thermistor _h6 senses the drop in water temperature and activates circulation pump _g7 of heating pipe _g6 . circulation pump g ₇
When activated, hot water circulates between the water heater g and the heat exchanger _h4 via the circulation paths _l2 , g, _g5 , _g6 , _l10 , and in the heat exchanger _h4 , the hot water circulates through the circulation path _h1. , _h5 and its circulation pump _h2 , the bath water is heated and reheated.

In the second embodiment described above, the circulation path for hot water, which is a heat source for reheating, is formed by sharing the bath water supply system, so that the conventional piping dedicated to reheating can be omitted. It is possible to use a water heater that has only a hot water supply function as it is, and it is easy to install.

As a third embodiment, a hot water mixing unit f in which mixed water at both high and low set temperatures is periodically and alternately discharged in the shower d will be explained with reference to FIGS. 12 to 17. This is the same as the first example, and the explanation will be omitted.

Figure 12 shows the basic configuration of this embodiment, with a water mixing valve f ₄ located in the middle of the water mixing pipe f ₆ and a hot water mixing valve f ₅ located in the middle of the hot water mixing pipe f _7. The opening ratio of both valves can be varied. A driving unit _f10 having a motor is connected to the mixing water flow pipe _l4 , which communicates with the water mixing pipe _f6 and the hot water mixing pipe _f7 and leading to the shower d. Equipped with a temperature sensor _F9 that converts the detected temperature into an electrical signal, this temperature sensor _F9 is connected to a drive unit _F10 , and the electric signal received from the temperature sensor _F9 is compared with high and low set temperatures to control the temperature of the water. The operation signal that adjusts the opening ratio of the mixing valve _F4 and the hot water mixing valve _F5 to the opening ratio of a higher set temperature and the operating signal that adjusts the opening ratio of the lower set temperature are driven periodically and alternately. A control means i for controlling the feed operation is connected to the section _f10 .

The mechanical structure of this embodiment will be explained with reference to FIGS. 13 to 15.

In FIG. 13, a water mixing valve f ₄ is provided in the middle of the water mixing pipe f ₆ and a hot water mixing valve f ₅ is provided in the middle of the hot water mixing pipe f ₇ so as to be rotatable about a vertical rotation axis. The water mixing valve f ₄ and the hot water mixing valve f ₅ each have a rotating shaft f _{11 in a drive unit f 10 integrally} connected to their upper end shafts, and are driven by a dedicated drive unit f ₁₀ . The water mixing valve F ₄ can be rotated in forward and reverse directions to increase or decrease the opening ratio of the notched opening F ₁₂ with respect to the valve seat hole F ₁₃ on the mixing water pipe L ₄ side, and is similarly driven by a dedicated drive unit F ₁₀ . The hot water mixing valve F ₅ rotates forward and reverse, and the valve seat hole F ₁₅ on the mixing water pipe L ₄ side
It is possible to increase or decrease the aperture ratio of the notch-like opening _f14 .

The drive unit f ₁₀ outputs the driving force of the motor f ₁₆ to the rotating shaft f ₁₁ via the reduction element, and these drive units f ₁₀ control the rotation direction of the water mixing valve f ₄ and the hot water mixing valve f ₅ , both valves. _f4 ,
The opening ratio of both valves is adjusted by controlling the opening ratio of one valve to increase or decrease the other valve, while regulating the opening ratio of f ₅ so that it does not increase or decrease _at the same time. The ratio of water and hot water, that is, the temperature of the mixed water, can be adjusted to a high set temperature and a low set temperature.

A temperature-sensitive sensor _f9 is installed in the middle of the mixing water pipe _l4 leading to the shower d, and this temperature-sensing sensor _f9 senses the temperature of the mixed water passing through the mixing water pipe _l4 , and converts the detected temperature into an electrical signal. It is connected and communicated with the control means i so that it can convert the electric signal and send the same electric signal to the control means i.

The control means i is wired and communicated with the drive parts f ₁₀ and f ₁₀ , and this control means i receives an electric signal from the temperature sensor f ₉ and compares it with both the high and low set temperatures to control the water mixing. An activation signal that adjusts the opening ratio of valve F ₄ and hot water mixing valve F ₅ to the opening ratio of the high side set temperature and an activation signal that adjusts the opening ratio of the low side set temperature are periodically alternated. _{The shower d}
The mixed water temperature can be automatically controlled periodically and alternately into mixed water at a higher set temperature and mixed water at a lower set temperature.

Further, the control means i corresponds to both high and low set temperatures that can be set electrically, and sends operating signals for those set temperatures to both drive parts f ₁₀ , and operates the water mixing valve f ₄ through both drive parts f ₁₀ . and the opening ratio of the hot water mixing valve _f5 ,
The respective opening ratios can be adjusted to the required opening ratio, and in accordance with the electrically settable setting cycle, an operating signal for the setting cycle is sent to both drive parts f ₁₀ , and is transmitted through both drive parts f ₁₀ . The intermittent stop times of the water mixing valve _f4 and the hot water mixing valve _f5 can be adjusted to the required intermittent stop time, and the actuation signals for water supply/stop and water supply amount are transmitted to both drive units _f10 . The water mixing valve f ₄ and the hot water mixing valve f ₅ can be opened and closed and controlled to a desired degree of opening through both drive units f ₁₀ .

In this control means i, the temperature setting of the high side temperature and the low side temperature of the mixed water, the cycle setting of the discharge cycle, the water supply/stop, and the water supply amount can be performed by turning the adjustment dial or pressing the digitally displayed numerical value on the button. By touching the button, you can freely set, change, and process the settings.

As a result, hot water and cold water are periodically discharged from the shower d according to the set period, and the temperature is controlled to the set temperature. It can be controlled by touching the button.

In this embodiment, an example of control by the control means i will be explained.

FIG. 16 shows an operation flowchart, and FIG. 17 shows the performance of controlling the temperature of ejected water, and the temperature control is performed as shown in the operation flowchart.

When spouting begins (51), the water mixing valve _f4 rotates forward to gradually increase its opening ratio to the hot water mixing valve _f5 (52), thereby lowering the mixed water temperature T _M (53). .
The temperature sensor _f9 continues to sense this decreasing mixed water temperature (54), converts the sensed temperature into an electrical signal and sends it to the control means i, which mixes it with the lower set temperature _Ts1. Compare the water temperature T _M (55), and if the mixed water temperature T _M is higher than the set temperature Ts ₁ , the water mixing valve
Further increase the opening ratio of f ₄ (52) to lower the mixed water temperature (53), and when the mixed water temperature T _M becomes the same or lower than the set temperature Ts ₁ , immediately stop the water mixing valve f ₄ . , the opening ratio of the water mixing valve f ₄ to the hot water mixing valve f ₅ is fixed for several seconds of the set time (55'), and during this fixed time mixed water at the same temperature as the lower set temperature Ts ₁ is supplied from the shower d. Exhale.

Then, after the fixed time at the low set temperature Ts ₁ has elapsed, the water mixing valve _f4 rotates in the reverse direction and its opening ratio with respect to the hot water mixing valve _f5 is sequentially reduced (56), and the mixed water temperature T _M (57). The temperature sensor f ₉ continues to sense this rising mixed water temperature, and the increasing mixed water temperature T _M is compared with the higher set temperature Ts ₂ by the control means i (59), and the mixed water temperature is determined. If T _M is lower than the set temperature Ts, the opening ratio of the water mixing valve f ₄ is further reduced (56) and the mixed water temperature is increased (57) until the mixed water temperature T _M is equal to the set temperature Ts ₂ . When the temperature becomes high, the water mixing valve _f4 is immediately stopped, and the opening ratio of the water mixing valve _f4 to the hot water mixing valve _f5 is fixed for a few seconds of the set time (60), and during this fixed time, the high side Mixed water with the same temperature as the set temperature Ts ₂ is discharged from the shower.

Next, after the fixed time period has elapsed at this high side set temperature Ts ₂ , the water mixing valve f ₄ rotates forward again to discharge the mixed water at the low side set temperature Ts ₁ , and this is periodically performed. Repeatedly, the mixed water at the lower set temperature Ts ₁ and the mixed water at the higher set temperature Ts ₂ are periodically and alternately continuously discharged from the shower d.

In this control example, as shown in the graph showing the temperature control performance in Fig. 17, the mixed water discharged from the shower d has a low set temperature Ts ₁ , that is, a mixed water temperature A of 25°C, and a high side set temperature Ts ₂ , that is, a mixed water temperature A of 25°C. The mixed water temperature B is alternately controlled to be 40°C at every cycle T, and hot water at 40°C and cold water at 25°C are periodically and alternately discharged from the shower d.

As a modification of the third embodiment, in the third embodiment described above, _the control means i controls the opening ratio of the water mixing valve f ₄ and the hot water mixing valve f ₅ through both the driving parts f ₁₀ and , f ₅ in opposite directions at the same time,
By making the opening ratio inversely proportional, it is possible to shorten the switching time between hot water and cold water. In this case, the driving unit f ₁₀ is capable of rotationally controlling the water mixing valve f ₄ and the hot water mixing valve f ₅ with one driving unit.

Further, it is also possible to configure the device so that the setting of both high and low temperature settings, water supply/stopping, and operation/adjustment of water supply amount are performed by operating a lever or handle, as in the conventional product. For example, it is possible to set both high and low temperature settings by operating a lever or handle by linking the lever or handle to the rotating shaft f ₁₁ directly or via a transmission element.

As another modification, only one of the water mixing valve f ₄ or the hot water mixing valve f ₅ may be replaced by a temperature sensor f ₉ , a control means i,
Controlled by the drive unit _F10 , mixed water at both high and low set temperatures is periodically and alternately discharged automatically with the water mixing valve _F4 or hot water mixing valve _F5 , which is operated by a lever or handle, fixed. It is also possible to do so.

In the third embodiment, for example, hot water and cold water at both high and low set temperatures can be automatically and alternately discharged from the convex portion, and the temperature of the mixed water, that is, the spouted water can be changed. This is handled as an electrical response using a temperature sensor, control unit, and drive unit, so the response is good, and hot water above the high-side set temperature is not sprayed out, so there is no risk of burns, etc., and it is highly safe. Cold water below the low set temperature is not sprayed out, so it is comfortable and does not put a strain on the heart.

Therefore, according to the third embodiment, hot water and cold water alternately discharged periodically from the spouting part stimulate the skin of the human body, improve blood circulation (pine surge effect), and strengthen the skin. This means that you can take a shower and cleanse your body while simultaneously obtaining the benefits.It is particularly effective for local cleansing, making it useful for preventing and treating hemorrhoids, and also for treating injured areas. Useful.

As a fourth embodiment, different examples of the mechanical structure of the hot water mixing unit f will be explained with reference to FIGS. 18 to 28.

In the figure, f' ₈ is the main body, which has _a roughly cylindrical shape with the axial direction being the up and down direction and the bottom _open . , cold water flow path f′ ₁₁ and mixed water flow path f′ ₁₂ are the main body f′
₈
It is formed by dividing the circumferential direction into thirds, and there is a functional chamber f′ ₁₃ at the bottom.
is formed.

The hot water flow path f' ₁₀ and the cold water flow path f' ₁₁ have a hot water inlet f' ₁₄ and a water inlet f' ₁₅ projectingly opened on the upper surface of the main body _f'8 , respectively, and the mixed water flow path f' ₁₂ has a protruding opening on the upper surface of the main body f'8. ₈ Open a mixed water outlet f′ ₁₆ on the side.

The hot water flow path f′ ₁₀ and the cold water flow path f′ ₁₁ are each provided with a check valve.
Equipped with f′ ₁₇ .

The functional chamber f′ ₁₃ has an open bottom, and the partition wall f′ ₉ forming the top surface has a hot water inlet f′ ₁₈ connected to the hot water flow path f′ ₁₀ and a cold water inlet connected to the cold water flow path f′ ₁₁ . f′ ₁₉ ,
The mixed water outlet f′ ₂₀ connected to the mixed water flow path f′ ₁₂ constitutes the corner vertex of the isosceles triangle, and the cold water inlet f′ ₁₉ and the hot water inlet f′ ₁₈ correspond to both ends of the base of the isosceles triangle. It will be opened as per the location.

A cartridge case _f'21 containing a valve part _f'7 is housed in the functional chamber _f'13 .

The cartridge case f' ₂₁ consists of a cylindrical case f' ₂₁ a with an opening at the bottom with the axial direction up and down, and a lid f' ₂₁ b that closes the opening, and is inserted non-rotatably into the function chamber f' ₁₃ . The case is pressed from below by a retaining ring f′ ₂₂ screwed onto the opening of the function chamber f′ ₁₃ .
The upper surface of f′ ₂₁ a is brought into watertight contact with the upper surface of functional chamber f′ ₁₃ .

The cartridge case f' ₂₁ has three through holes f' ₂₃ on the upper surface of the case f' ₂₁ a, which overlap with the cold water inlet f' ₁₉ , hot water inlet f' ₁₈ , and mixed water outlet f' ₂₀ of the functional chamber f' _13, respectively. , f′ ₂₄ ,
has f′ ₂₅ .

The valve part f' ₇ is connected to a fixed plate f' ₄ which is non-rotatably disposed inside the case f' ₂₁ a and is in watertight contact with the upper surface of the case f' ₂₁ a.
and a movable plate f' 6 superimposed on the lower surface of the fixed plate f' ₄ in a watertight and slidable manner, and the movable plate f' ₆
f' ₆ is driven by motor f' ₂₆ and rotates while in sliding contact with fixed plate f' ₄ .

That is, a drive shaft f' ₂₇ is protruded from the center of the back of the movable plate f' ₆ , and the drive shaft f' ₂₇ is connected to the cartridge case f' _21.
The output of the motor f' ₂₆ is inserted through the lid f' ₂₁ b and the retaining ring f' ₂₂ , protrudes from the lower surface of the main body f' ₈ , and is attached to the flange f' ₂₈ at the edge of the opening of the function chamber f' ₁₃ . shaft
Connected to f′ ₂₉ .

The fixing plate f′ ₄ is connected to the through holes f′ ₂₃ , f′ ₂₄ , f of the case f′ ₂₁ a.
' _{twenty five}
and a cold water flow path f′ ₁₁ and a hot water flow path through the cold water inlet f′ ₁₉ , hot water inlet f′ ₁₈ , and mixed water outlet f′ ₂₀ of the function room f′ ₁₃ , respectively.
f′ ₁₀ , and a cold water flow hole connecting to the mixing water flow path f′ ₁₂
f′ ₁ , a hot water flow hole f′ ₂ and a mixed water flow hole f′ ₃ ;
The movable plate _f'6 has a concave mixing chamber _f'5 on its sliding surface with the fixed plate _f'4 .

Cold water flow hole f′ ₁ and hot water flow hole f′ ₂ are fixed plate f′ ₄
The shape of the part opening on the upper surface side is the shape shown in Fig. 26, that is, when the ends of two circular arcs α and β of different sizes drawn with the center of the fixing plate f' ₄ as a center point are extended, they form a predetermined angle with each other. It is formed in a shape connected by two straight lines γ and δ passing through the center of the fixed plate f′ ₄ , and the mixed water flow hole f′ ₃ is formed with a predetermined radius around the center of the fixed plate f′ ₄ . It is formed in a shape surrounded by a drawn circular arc ε and a circular arc ζ of a predetermined radius drawn with its center on the center line passing through the circular arc ε and the above-mentioned center on the outside of the circular arc ε.

Furthermore, these cold water distribution holes f' ₁ , hot water distribution holes f' ₂ and mixed water distribution holes f' ₃ are connected to the fixing plate f' ₄ from the upper surface side to the lower surface side through the stepped portion f' ₃₀ in the middle part in the depth direction. Largely formed. The shape of these fixing plates f′ ₄ on the top side is similar to the through hole on the top surface of cartridge case f′ ₂₁ .
They are formed in shapes corresponding to f′ ₁₉ , f′ ₁₈ , and f′ ₂₀ , respectively.

The mixing chamber _f'5 of the movable plate _f'9 includes a mixing section f'5c and water inlet sections f'5a continuously provided on the left and right sides of the mixing section f'5c.
It consists of a hot water inflow part f'5b, and has the shape shown in Fig. 27, that is, drawn around the rotation axis of the movable plate _f'6 .
Arc η with the same radius as the arc ε of the mixed water flow hole f′ ₃
and two straight lines θ, ι that extend from both ends of the arc η and overlap each other in a straight line when extended, and straight lines θ, ι
Continuously, two arcs κ and λ are drawn with the same radius and the same length as the large arc α of the cold water and hot water flow holes f′ ₁ and f′ ₂ , centered on the rotation axis _of the movable plate f′ 6. , it extends continuously along arcs κ and λ, and when extended, it becomes a movable plate f′ ₆
Two small straight lines μ, ν, small straight lines μ,
Continuing with ν, the large arc α and small arc β of the cold water and hot water flow holes f′ ₁ and f′ ₂ center around the rotation axis of the movable plate f′ ₆ .
two circular arcs ε, ο drawn with the same length as the above circular arcs κ, λ and two straight lines that extend continuously from the circular arcs ε, ο and intersect in a V-shape at the center of the movable plate. It is formed in a shape surrounded by π and σ.

The valve part f' ₇ rotates from side to side with the movable plate f' ₆ in sliding contact with the fixed plate f' ₄ by the driving force of the motor f' ₂₆ , and as the movable plate f' 6 rotates, the water inlet part f'5a opens. The overlapping areas of the cold water flow hole f' ₁ , the hot water inflow portion f'5b and the hot water flow hole f' ₂ are such that when one increases, the other decreases.

For example, the overlapping area between the water inflow portion f'5a and the cold water flow hole _f'1 increases as the overlapping area between the non-simultaneously aligned portion f'5a2 and the cold water flow hole _f'1 increases, and the cold water flow hole f' ₁ is fully open.

Next, the overlapping area with the non-simultaneously matching part f'5a2 decreases, and the overlapping area with the simultaneously matching part f'5a1 increases, and as a whole, the area between the water inflow part f'5a and the cold water flow hole _f'1 As the overlapping area decreases and further rotation is performed, only the simultaneous alignment portion f'5a1 and the cold water passage hole _f'1 overlap, the overlapping area decreases, and the cold water passage hole _f'1 becomes completely closed.

On the other hand, in the hot water inflow portion f'5b, the overlapping area of the simultaneous matching portion f'5b1 and the hot water flow hole _f'2 increases first.

Next, the overlapping area with the simultaneous matching part f'5b1 decreases, and the overlapping area with the non-simultaneous matching part f'5b2 increases, resulting in an overall overlap between the hot water inlet part f'5b and the hot water flow hole _f'2 . The area increases, and finally it overlaps only the non-simultaneously aligned portion f'5b2, and the hot water flow hole _f'2 becomes fully open.

On the other hand, the sensor unit w connected to the mixed water outlet f' ₅ of the main body is connected to a casing f' ₃₁ having an inlet w ₁₀ and an outlet f' ₃₄ communicating through an L-shaped channel w ₃₃ , as shown in FIG. It is integrally equipped with a water amount sensor _w7 and a temperature sensor _w6 , and the outlet _w9 opens at a position above the inlet _w10 .

The water flow sensor w ₇ is installed in the horizontal part of the flow path w ₃₁ and includes a magnet w 37 that is integrally provided with the rotation axis w ₃₆ of the impeller w ₃₅ which is driven and rotated by the mixed water flowing through the flow path w _{33 .} , and a sensing element w ₃₈ that detects the magnetic field of the magnet w ₃₇ , and the sensing element w ₃₈ is a magnet.
It is configured to detect the number of pulses or pulse intervals caused by the rotation of w ₃₇ and output an electrical signal.

The temperature sensor w ₆ is a thermistor, and is attached via a sensor receiver w ₃₉ provided in the casing f' ₃₁ , and the sensor part is inserted into the flow path w ₃₃ to measure the temperature of the mixed water flowing through the flow path w ₃₃ . Detects and outputs an electrical signal.

The hot water mixing unit f of the fourth embodiment stores the set temperature and the set amount of water, compares and determines the set temperature and the mixed water temperature detected by the temperature sensor _w6 , and adjusts the motor f' according to the result. The temperature of the mixed water is controlled by rotating the movable plate f′ ₆ left and right via the water flow sensor w ₂₆ , and when the total flow rate obtained by counting the instantaneous flow rate detected by the water flow sensor w ₇ reaches the set flow rate, the motor f′ ₂₆ is driven. The movable plate _f'6 is rotated to shut off water.

In the fourth embodiment, the arcuate end of the non-simultaneous matching section and the mixing section are connected by a straight line that overlaps in a straight line when extended, so that the mixing chamber has no flow of cold water or hot water from the inflow section to the mixing chamber. There is no obstructing barrier, and the cold water or hot water flowing into the inlet flows smoothly into the mixing part and flows out from the mixed water flow hole, without exerting back pressure on the inflow side.

Therefore, there is no fear that the flow rate decreases when the cold water flow hole or the hot water flow hole approaches full opening, unlike in the conventional case, and flow control and temperature control are easy to perform.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is a detailed view of the control panel outside the bathroom, Fig. 3 is a detailed view of the control panel inside the bathroom, and Fig. 4 is a diagram showing hot water supply and addition using the control panel outside the bathroom. Figure 5 is a flowchart for heating water, Figure 5 is a flowchart for hot water supply using the bathroom control panel, Figure 6 is a flowchart for automatic drainage, Figure 7 is an enlarged cross-sectional view of the automatic drain valve, and Figure 8 is a diagram of Figure 7. 9 is a side view of FIG. 7, FIG. 10 is a drive circuit diagram of the automatic drain plug, FIG. 11 is a configuration diagram showing a modification of the reheating unit of the second embodiment, and FIG. 12 is a block diagram showing the hot water mixing unit of the third embodiment, FIG. 13 is a longitudinal sectional front view thereof, FIG. 14 is a sectional view taken along the line X-X in FIG. 13, and FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG. 16 is a flowchart of the same, FIG. 17 is an oblique graph, FIG. 18 is a partially cutaway front view showing the hot water mixing unit of the fourth embodiment, FIG. 19 is a side view of the same, and FIG. Figure 20 is the same plan view, Figure 21 is the 18th
XX-XX cross-sectional view in the figure, Figure 22 is the 18th
XX-XX cross-sectional view in the figure, Figure 23 is the 21st
XX-XX cross-sectional view in the figure, Figure 24 is the 23rd
25 is an exploded three-dimensional view of the main parts, FIG. 26 is a front view of the fixed plate, FIG. 27 is a front view of the movable plate, and FIG. 28 is a sectional view of the sensor unit. In the diagram a...bathtub, b...automatic drain plug, c...
Bath lid, d...Shower, e...Fixed click, f
... Hot water mixing unit, f ₁ ... Thermistor, f ₂ ...
...Water flow sensor, _f3 ...Motor, _f4 ...Water mixing valve, _f5 ...Hot water mixing valve, g...Water heater, h...Reheating unit, i...Control means, j...Inside bathroom Operation panel, k...This is an operation panel outside the bathroom.

Claims (1)

[Claims] 1. A bathtub, an automatic drain valve that opens and closes the drain of the bathtub, a fixed collar that supplies hot water to the bathtub, a gas water heater connected to the fixed collar via a hot water mixing unit, a reheating unit that reheats the hot water in the bathtub, and the above-mentioned It is equipped with a control means for electrically controlling the operation of an automatic drain valve, a hot water mixing unit, a gas water heater, and a reheating unit, and an operation panel for remotely operating the control means,
The hot water mixing unit includes a hot water mixing section that mixes hot water from the gas water heater and water from the water supply source at an appropriate temperature based on a command from the control means, and a water amount sensor provided on the secondary side of the hot water mixing section. A fully automatic bath device comprising: