JPH0730949B2 - Bath device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a bathtub device, which can accurately perform a predetermined amount of hot water supply during a bubble bath operation, and further perform a bubble bath operation, a reheating operation, and a bath hot water operation. , Their independent operation is
The present invention relates to a bathtub device that can be operated without any trouble in the operation of each combination thereof.

<Prior Art> FIG. 4 shows a block diagram of a conventional apparatus disclosed in Japanese Patent Laid-Open No. 62-204747. 1 is a bath, 2 is a heat exchanger, 3 is a circulation pump, 4 and 5 are passage opening / closing valves, and 6 is an air pump. At the time of reheating, the valve 5 is opened and the pump 3 is driven to heat. Further, during the bubble bath operation, the valve 4 is opened, the pump 3 is driven, and air is sent from the air pump 6 to perform the bubble bath operation.

FIG. 5 shows a block diagram of another conventional device. 1 is a bathtub, 2 is a heat exchanger, 3 is a circulation pump, 7 is a three-way valve, 8 is an ejector, 9 is an opening / closing valve of an air introduction passage connected to a negative pressure forming portion of the ejector 8, and 10 is a short-circuit passage. . At the time of reheating, the three-way valve 7 is switched so that the water in the bathtub 1 is circulated to the heat exchanger 2, and at the time of the bubble bath operation, the three-way valve 7 is switched to the short-circuit passage 10 side to short-circuit the bath water. Then, the on-off valve 9 of the air introduction path is opened to suck air from the negative pressure forming portion of the ejector 8 to discharge bubbles into the bath 1.

<Problems to be Solved by the Invention> However, in the conventional device shown in FIG. 4, the air pump 6 is separately required to perform the bubble bath function, and the air pump 6 needs to be arranged near the bath 1. Therefore, there is a drawback that the air pump 6 cannot be stored in the same one case as the bath kettle.

The conventional device shown in FIG. 5 does not require the use of an air pump, and is very effective in terms of device integration. On the other hand, when a drop hopper 11 for bath hot water supply is provided in the device as shown by the chain double-dashed line and a bath hot water supply function is added, when the circulation pump 3 is driven, the water pressure placed in the circulation passage due to its dynamic pressure. The problem remains that the detection-type water level sensor 12 cannot detect the accurate bathtub water level.

Especially when the bubble bath operation is performed at the same time as the bath hot water supply using the ejector 8, the pressure increases in front of the ejector 8, so that the detection of the bath water level is very inaccurate with the water level sensor 12 placed in the circulation passage. There was a drawback that became. For this reason, conventionally, the bath hot water is not supplied while the bubble bath is in operation, and the bath hot water is supplied after the bubble bath switch is turned off when the water level of the bathtub drops.

Therefore, the present invention eliminates the above-mentioned drawbacks of the prior art, and can accurately perform a predetermined amount of hot water supply even during a bubble bath operation, and further, perform a bubble bath operation, a reheating operation, a bath hot water operation, and the independent operation thereof. An object of the present invention is to provide a bathtub device that can be operated without any trouble even in the operation of each combination.

<Means for Solving the Problems> The bath hook device of the present invention which achieves the above object guides the water from the bath 20 to the circulation pump P and discharges the water from the circulation pump P via the ejector 33 to the bath 20. Circulation passage 32 to circulate to, an air introduction passage 40 connected to the negative pressure forming portion of the ejector 33, and the circulation pump P9 of the circulation passage 32.
A bypass passage 34 that branches from a position upstream from the upstream side, and passes through the heat exchanger 35 and merges again with the upstream position of the circulation passage 32.
A bypass passage opening / closing valve V ₁ for reheating provided at a position downstream of the heat exchanger 35 in the bypass passage 34, a bath hot water supply passage 52 having a bath hot water supply passage opening / closing valve V ₂ , and the bath hot water supply A bath kettle device having a dropping passage 50 for dropping warm water from a passage 52 to be received by a hopper 51 and dropping to the bathtub 20 side, and a controller 61 for controlling each component of the device, wherein the bath hot water supply passage 52 is connected to the bathtub 20. A water amount sensor S ₁ for detecting the amount of hot water supplied is provided, and the drop hopper 51
Is connected to an intermediate position between the bypass passage opening / closing valve V ₁ of the bypass passage 34 and the junction J point of the bypass passage 34 to the circulation passage 32.

<Operation> According to the feature of the present invention described above, by providing the water amount sensor S ₁ for detecting the amount of hot water supplied to the bathtub 20 in the bath hot water supply passage 52, regardless of whether the circulation pump P is on or off. ,
Further, it is possible to supply the predetermined set amount of water to the bathtub 20 accurately regardless of whether or not the bubble bath is in operation. Ie bathtub
It suffices to set a predetermined amount of water according to the state of the water level in 20 and start hot water supply. When a certain amount of water flows, the bath hot water supply passage 52
The water amount sensor S ₁ detects this, closes the bath hot water supply passage open / close valve V ₂ of the bath hot water supply passage 52, and stops hot water supply. Of course, it is also possible to determine the amount of water in several stages in advance, and the user selects it and switches it on, so that the selected amount of water is supplied to the bath every time it is switched on.

In addition, the drop passage 50 from the drop hopper 51,
By connecting the bypass passage opening / closing valve V ₁ of the bypass passage 34 and the junction J point of the bypass passage 34 to the circulation passage 32, the bubble bath alone operation, the reheating alone operation, the bath hot water alone operation, the foam Simultaneous operation of bath operation and reheating operation,
The simultaneous operation of the bubble bath operation and the bath hot water supply operation, the simultaneous operation of the reheating operation and the bath hot water supply operation, and the simultaneous operation of the bubble bath operation, the reheating operation and the bath hot water supply operation can all be performed without problems.

That is, the controller 61 drives the circulation pump P,
The bubble bath can be operated independently by closing the valves V ₁ and V ₂ and introducing air from the air introduction path 40.

In addition, the controller 61 drives the circulation pump P,
The valve V ₁ is opened, the heating means in the heat exchanger 35 is driven, and the valve V ₂
By shutting off and stopping air introduction, reheating can be operated independently.

Further, the controller 61 opens the valve V ₂ , closes the valve V ₁ , drives the circulation pump P, and stops the air introduction, so that the bath hot water single operation can be performed.

Further, during the bubble bath independent operation, by further opening the valve V ₁ and driving the heating means in the heat exchanger 35, a part of the bath water passing through the circulation passage 32 passes through the bypass passage 34 to exchange heat. Vessel 35
It will be heated at the same time and it will be operated simultaneously with the reheating operation and the bubble bath operation. Of course, it is also possible to shift from the reheating single operation to the simultaneous operation of the bubble bath operation, and to start the simultaneous operation at the same time.

Further, by further opening the valve V ₂ during the bubble bath independent operation, the bath hot water supply operation and the bubble bath operation are simultaneously performed.
Of course, it is also possible to shift from the bath hot water supply independent operation to the simultaneous operation with the bubble bath operation, or to start the simultaneous operation at the same time.

In addition, by opening the valve V ₂ during the above-mentioned reheating single operation, transition to simultaneous bath hot water supply operation and reheating operation,
Simultaneous operation can be started at the same time.

Furthermore, the valve is operated during the simultaneous operation of the bubble bath operation and the reheating operation.
By opening V ₂ , all functions of bubble bath operation, reheating operation and bath hot water operation can be performed simultaneously. It is possible to shift from another independent operation state or a two-function simultaneous operation state to a full-function simultaneous operation, or it is possible to start the full-function simultaneous operation from the beginning.

<Embodiment> FIG. 1 is an overall configuration diagram showing a device embodying the present invention, FIG. 2 is an explanatory diagram of a float switch of a hopper, and FIG. 3 is a control flowchart of a driving operation by a controller.

20 is a bathtub and 30 is a bath kettle case. In the case 30, members necessary for a bubble bath operation, a bath hot water supply operation, and a reheating operation are housed and arranged. A circulation pump P is provided in the circulation passage 32, and the bath water circulates through the circulation passage 32 by driving the circulation pump P. An ejector 33 is provided at the end of the circulation passage 32, and the circulating water returns to the bathtub 20 through the ejector 33.

A bypass passage 34 is provided so as to branch from a position upstream of the circulation pump P in the middle of the circulation passage 32. The bypass passage 34 passes through a heat exchange coil 36 in a heat exchanger 35, and then the circulation pump in the circulation passage 32 again. J is joined at a position upstream of P.
A bypass passage opening / closing valve V ₁ for reheating is provided in the bypass passage 34.

The inside of the heat exchanger 35 serves as a hot water storage tank, and the entered water is heated by the burner 39, discharged as needed, and supplied for hot water supply. The water passing through the heat exchange coil 36 is heated by the hot water in the heat exchanger 35.

An air introducing passage 40 is connected to the negative pressure forming portion 33a of the ejector 33, and a jet air valve V ₄ is provided in the air introducing passage 40.

Reference numeral 50 is a drop passage for bath hot water supply, which is connected from the lower end of the drop hopper 51 to an intermediate position between the bypass passage opening / closing valve V ₁ of the bypass passage 34 and the junction J point of the bypass passage 34 to the circulation passage 32. . The dropping passage 50 may be connected to a position downstream of the confluence J point of the circulation passage 32 and upstream of the circulation pump P of the circulation passage 32 (that is, suction side). The drop hopper 51
To the bath hot water supply passage 52 from the heat exchanger 35, the bath hot water supply passage 52 is provided with a bath hot water supply passage open / close valve V ₂ and a water amount sensor S ₁ capable of detecting the amount of hot water supplied to the bathtub. There is. The drop passage opening / closing valve V ₃ is provided in the drop passage 50.
Is provided.

S ₃ is a float switch, which operates when the water level in the hopper 51 reaches three positions A, B, and C, as shown in FIG. That is, when the water in the hopper 51 drops to the water level A during hot water supply to the bathtub 20, the valve V ₃ closes. When the water level rises to B, valve V ₃ opens. When the water level rises to C, the valve V ₂ closes to prevent overflow.

61 is a controller, which receives a command from the remote control unit 62,
Further, by inputting information from the bath temperature sensor S ₂ , the water amount sensor S ₁ , the float switch S ₃ , etc., a predetermined control operation command is given to the circulation pump P, valves V ₁ , V ₂ , V ₃ , V ₄ , Output to burner 39 etc.

The remote control unit 62 is disposed in a bathroom or the like, and is provided with a main operation switch, a bath hot water switch, a bubble bath switch, a reheating switch, a bath temperature adjusting dial, and a bath hot water supply amount setting dial. Further, instead of the bath hot water supply amount setting dial, a selection knob for selecting a predetermined plurality of kinds of hot water supply amounts, for example, hot water supply amounts of 10 l, 30 l, 50 l, 80 l and 180 l may be provided.

The control by the controller 61 will be described. Now, with the main operation switch turned on, when a predetermined bath hot water supply amount is set or a predetermined bath hot water supply amount is selected and the bath hot water supply operation switch is turned on (step (a)),
With the bubble bath operation switch turned off (step (b)), first, V _{2 of the} bath hot water supply channel 52 opens and the heat exchanger 35
From here, warm water of a predetermined temperature is started to be poured into the hopper 51. Then, when the water level in the hopper 51 rises to the position B, the valve V ₃ of the drop passage 50 opens and the pump P turns on,
Hot water supply to the bathtub 20 is started (step (C)). If the water level in the hopper 51 drops to A during hot water supply, the valve will
V ₃ closes and pump P turns off. Then, the bath hot water supply amount is integrated by the water amount sensor S ₁ arranged in the bath hot water supply passage 52, and when the predetermined set amount is supplied (step (d)), the valves V ₂ and V ₃ are turned on via the controller 61. After closing, the pump P is turned off and the bath hot water supply is completed (step (e)).

On the other hand, when only the bubble bath operation switch is turned on (step (f)), the valves V ₁ , V ₂ and V ₃ are closed, the valve V ₄ of the air introduction passage 40 is opened, and the pump P is opened. Is turned on (step (g)). The bath water circulates through the circulation passage 32, and when passing through the ejector 33, air is sucked from the negative pressure forming portion 33a of the ejector 33, and bubbles are ejected into the bath 20. When the bubble bath operation switch is turned off, the operation is stopped.

Further, when the bath hot water operation and the bubble bath operation are performed at the same time, that is, when the bath hot water operation switch is turned on, the bubble bath operation switch is further turned on, or vice versa, in this case, V ₁ closed, valve V ₂ ,
V ₃ and V _{4 are} opened, and pump P is turned on (step (h)). However, the valve V ₃ opens when the hopper water level rises to the B position and closes when it drops to the A position. Hot water is dropped from the hopper 51 while the bath water circulates in the circulation passage 32. Then, air is sucked from the negative pressure forming portion 33a of the ejector 33, and bubble water is ejected into the bath 20. When the amount of warm water passing through the bath hot water supply passage 52 reaches the set amount of water (step (re)), the valves V ₂ and V ₃ for bath hot water are closed (step (nu)), and the bath hot water ends. Bubble bath operation continues until the bubble bath switch is turned off.

Although not shown in the flowchart of FIG. 3, when the bath reheating operation switch is turned on, the valve V ₁ of the bypass passage 34 is opened and the pump P is turned on. Bath water circulates in the circulation passage 32, a part of which flows into the bypass passage 34,
After being heated in the heat exchanger 35, it joins the circulating water again and
Return to 20. When the bath temperature sensor S ₂ detects the bath set temperature, the valve V ₁ is closed, the pump P is turned off, and the reheating operation ends. In the reheating operation, since the warm water heated by the heat exchanger 35 is diluted with the circulating water to return to the bathtub, the superheated water does not enter the bathtub 20 and mild reheating can be performed. Switching between the reheating operation and the bubble bath operation can be easily performed by opening / closing the valves V ₁ and V ₄ . Of course, the bubble bath operation can be operated at the same time during the reheating operation. In this case valve V ₄ is opened further. If the reheating operation switch is turned on during the operation of the bubble bath, the valve V ₁ is further opened, and the simultaneous operation state is obtained.

Furthermore, the bath hot water supply operation can be operated at the same time during the reheating operation. In this case, when the bath hot water supply operation switch is turned on, the valve V ₂ is opened, and the valve V ₃ is also opened, so that the bath hot water supply and the reheating are simultaneously operated. Also, when the reheating operation switch is turned on during the bath hot water supply operation, the valve V ₁ further opens, and the simultaneous operation is performed.

Further, by turning on all of the bubble bath operation switch, the hot water supply operation switch, and the reheating operation switch, the valve V ₁ ,
V _2, V _3, V ₄ is opened, the pump P is driven, the burner 39 is turned on, the three operation are simultaneously operated.

<Effect> The present invention is configured as described above, and according to the configuration of claim 1, the circulation pump P is provided by providing the water amount sensor S ₁ for detecting the amount of hot water supplied to the bathtub 20 in the bath hot water supply passage 52. Regardless of whether it is in the ON state or the OFF state, and whether or not the bubble bath operation is being performed, it is possible to accurately supply a predetermined set amount of water to the bathtub 20 regardless of which operation is being performed.

Moreover, the drop passage 50 from the drop hopper 51
Is connected to an intermediate position between the bypass passage opening / closing valve V ₁ of the bypass passage 34 and the junction J point of the bypass passage 34 to the circulation passage 32. Therefore, the bubble bath independent operation, the additional heating operation alone, and the bath hot water supply Single operation, simultaneous operation of bubble bath operation and reheating operation, simultaneous operation of bubble bath operation and bath hot water operation, simultaneous operation of reheating operation and bath hot water operation, bubble bath operation and reheating operation and bath hot water supply Both driving and simultaneous driving can be performed without any problems.

Further, since the bypass passage 34 is provided to perform reheating, the high temperature water from the heat exchanger 35 is temperature-diluted before entering the bathtub 20, and thus mild reheating can be realized.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an apparatus embodying the present invention, FIG. 2 is an explanatory view of a float switch of a hopper, FIG. 3 is a control flowchart of a driving operation by a controller, and FIGS. It is a block diagram. 20: Bathtub 32: Circulation passage 33: Ejector 34: Bypass passage 35: Heat exchanger 40: Air introduction passage 50: Drop passage 51: Drop hopper 52: Bath hot water passage P: Circulation pump S ₁ : Water amount sensor V ₁ , V ₂ , V ₃ , V ₄ : Valve

Claims (1)

[Claims] 1. A circulation passage 32 for guiding water from a bath 20 to a circulation pump P and circulating the water discharged from the circulation pump P to the bath 20 via an ejector 33, and a negative pressure forming portion of the ejector 33. The air introducing passage 40 connected to the circulation passage 32 is branched from a position upstream of the circulation pump P in the circulation passage 32,
A bypass passage 34 which joins the upstream position of the circulation passage 32 again through the heat exchanger 35, and a bypass passage opening / closing valve V for reheating which is provided at a position downstream of the heat exchanger 35 in the bypass passage 34. ₁ , a bath hot water supply passage 52 equipped with a bath hot water supply passage open / close valve V ₂ , a drop passage 50 for dropping hot water from the bath hot water supply passage 52 to be received by a hopper 51, and dropped to the bathtub 20 side, and each component of the device is controlled A bathtub device having a controller 61 for operating the bathtub 20 in the bath hot water supply passage 52.
A water amount sensor S ₁ for detecting the amount of hot water supplied to the bypass passage 34 is provided, and the drop passage 50 from the drop hopper 51 is connected to the bypass passage opening / closing valve V ₁ of the bypass passage 34 and the circulation passage 32 of the bypass passage 34 at a J point. A bath hook device characterized by being connected to an intermediate position between and.