JP2844689B2 - Bubble generating bath with automatic drainage function - Google Patents

Description

The present invention relates to an air bubble generation bath having an automatic discharge function by inverter control.

(B) Conventional technology Conventionally, as a basic form of a bubble generating bath, Japanese Patent Laid-Open No.
As described in Japanese Patent No. 5058, a bath water suction pipe and a bath water supply pipe are connected between a bathtub body and a circulation pump, and an air intake section is provided in a middle part of the pipe.

With such a structure, the circulating pump is operated to suck the bath water in the bathtub body through the bathwater suction pipe, and to blow out the bathwater from the pump to the bathtub body through the bathwater supply pipe. .

At this time, the bath water to be spouted is mixed with the air inlet portion by using the negative pressure generated by the spout of the bath water from the air inlet portion, and the bath water with air bubbles is mixed in the bathtub body. And make it erupt.

Further, when the bath water in the bathtub body is discarded, the plug of the drain port provided at the bottom of the bathtub body is removed to drain the bathwater.

(C) Problems to be solved by the invention However, the above-mentioned bubble generating bath has the following drawbacks.

That is, when the drain of the bath water is drained by removing the plug of the drain port, the draining sound becomes noise and reverberates in the bathroom, causing noise pollution in the apartment house and the like.

In particular, near the end of the drainage, air is sucked together with the bath water, so that air separation occurs at the suction port of the bath water with the suction speed of the air, resulting in significant noise.

An object of the present invention is to provide a bubble generating bathtub that can solve the above-described problems.

(D) Means for Solving the Problems The present invention relates to a bathtub body, a circulation pump, and a bathwater suction passage and a bathwater strong-feeding passage provided between the circulation pump and the bathtub body. Bath water circulation flow path, and a jet nozzle formed in the terminal end opening of the bath water strong flow path provided in the bathtub body,
An air intake portion connected to the bath water circulation flow path, and in the bubble generating bath tub in which the bubble-mixed bath water can be blown out from the blow-out nozzle into the bath tub main body, in order to discharge the bath water, The present invention relates to a bubble generating bath having an automatic drainage function, comprising: a discharge pipe connected to a downstream side of a circulation pump through a switching valve; and control means for driving a motor for driving the circulation pump. .

The present invention is also characterized in that the control means includes means for controlling the number of revolutions of a motor for driving a circulation pump.

(E) Function and Effect In the present invention, bath water circulation comprising a bathtub body, a circulation pump, a bathwater suction flow path and a bathwater high-power flow path interposed between the circulation pump and the bathtub body. A flow path, a jet nozzle provided in the bathtub main body and formed at an end opening of the bath hot water flow path, and an air intake portion connected to the bath hot water circulation flow path, wherein air bubbles are mixed from the jet nozzle. A discharge pipe connected to a downstream side of the circulating pump through a switching valve in order to discharge the bath water in a bubble generating bath tub in which the bath water can be ejected into the bath tub body; and a motor for driving the circulating pump. And control means for driving the so that the circulating pump is operated to generate a bubble jet in the bathtub body,
Bathers can be massaged by air bubbles.

Also, when the circulation pump is driven in a state where the circulation pump and the drain pipe are communicated by the switching valve, the bath water of the bathtub body name is sucked from the bath water circulation flow path, and the bath is automatically drained from the drain pipe. Hot water can be drained.

Further, since the control means is provided with means for controlling the rotation speed of the motor for driving the circulation pump, by changing the rotation speed of the motor for driving the circulation pump,
The amount of water discharged by the circulation pump can be adjusted freely,
Bath water can be drained smoothly.

(F) Embodiment An embodiment of the present invention will be described in detail with reference to the drawings.
The overall structure of the bubble generating bath according to the present invention will be described in detail.

A shown in FIG. 1 is a bubble generation bathtub according to the present invention,
The bubble-generating bathtub A is provided with a foot-side jet nozzle 2, a back-side jet nozzle 3, and a ventral-side jet nozzle 4 on the front and rear walls and left and right side walls of a bathtub main body 1 formed in a box shape with an upper surface opening, respectively. Each is provided.

Further, a pump protection case 9 is provided outside the bubble generation bath A, and a circulation pump P for circulating bath water, a filter 10 for filtering bath water, and a pump A motor M and a control C for controlling the driving of the nozzle valve opening / closing motor 12 and the electric three-way valve 13 are provided.

Reference numeral 10a denotes a drain pipe for draining bath water from the filter 10.

Further, between the circulation pump P and the bathtub body 1,
A bath water circulation passage D is provided, and the bath water circulation passage D is provided with a bath water suction pipe 15 for sending bath water from the bubble generation bath A to the circulation pump P, and a bath water circulation pipe P which is provided with the same. It is composed of a bath water forcible pipe 16 for sending bath water to the bathtub body 1.

The bath water suction pipe 15 has one end connected to a suction port 17 opened at the lower portion of the bathtub body 1 and one end connected to the suction port 17 of the circulation pump P, and the other end connected to the same. I try to inhale bath water.

On the other hand, the bath hot water supply pipe 16 has one end connected to the water discharge port of the circulation pump P, and the other end connected to the jet nozzles 2, 3, and 4, respectively.

As shown in FIG. 2, an inverter I is provided between the pump driving motor M for driving the circulation pump P and the control unit C as means for controlling the number of revolutions of the pump driving motor M. Then, by changing the output frequency of the inverter I and controlling the rotation speed of the circulation pump P, the rotation speed of the circulation pump P can be changed smoothly and reliably.

As shown in FIG. 2, a pressure detecting sensor 18 for detecting the water pressure of the bath hot water fed into the pipe 16 is attached to the middle part of the bath hot water feeding pipe 16, and the detection from the sensor 18 is performed. The result is sent to the control unit C, and the control unit C changes the number of rotations of the pump driving motor M and the opening / closing amount of each of the ejection nozzles 2, 3, and 4, so that the ejection from each of the ejection nozzles 2, 3, and 4 is performed. It controls the pressure of the hot spring.

Further, as shown in FIG. 2, a bath water temperature detection sensor 19 for detecting the temperature of the bath water pumped into the pipe 16 is attached to the middle part of the bath water forcible pipe 16. Is sent to the control unit C, and the control unit C controls the pump driving motor M and the ejection nozzles 2, 3, and 4.

Further, the above-described air intake section 5 and each of the jet nozzles 2, 3, 4
As shown in FIGS. 1 and 2, a plurality of intake pipes 20 are interposed therebetween, and each of the intake pipes 20 is connected to each of the ejection nozzles 2, 3, and 4 from the air intake unit 5. It is connected for communication.

Then, utilizing the negative pressure generated when the bath nozzles 2, 3, and 4 eject the bath water, the air taken in from the air intake unit 5 is sucked into each of the ejection nozzles 2, 3, and 4 through each intake pipe 20. The nozzles 2, 3, and 4 are configured to blow out the bath water mixed with bubbles into the bathtub body 1.

As shown in FIGS. 1 and 2, an operation panel section 6 connected to a control section C is provided at an edge 1a of the bathtub body 1, and switches provided on the panel section 6 are provided. Thus, the operation of operating the bubble generation bath A is performed.

Reference numeral 21 denotes an infrared receiving unit provided in the operation panel unit 6, which receives infrared rays transmitted from the remote controller 22.

 Next, the control unit C will be described in detail.

As shown in FIG. 2, the operation unit C includes a microprocessor MPU, an input interface 24, an output interface 25, a memory 26 including a ROM and a RAM,
It consists of a timer 27.

In the above configuration, the input interface 24
The rotation speed detection sensor S1 for detecting the rotation speed of the circulation pump P, the valve body reference position detection sensor S2 for detecting the opening / closing amount of the ejection amount adjustment valve body, and the water pressure in the bath hot water pipe 16 A pressure detection sensor 18, a bath water temperature detection sensor 19 for detecting the temperature of the bath water in the bathtub main body 1, and an infrared ray receiving unit 21 for receiving a drive signal by infrared rays from a remote controller 22 are connected.

On the other hand, the output interface 25 includes a pump driving motor M, a nozzle valve opening / closing motor 12, and an electric three-way valve 13.
And the drive unit of the filter 10 are connected.

Further, the memory 26 has a driving sequence program for driving the motors M, 12 and the driving units such as the electric three-way valve 13 based on the output signals from the sensors and the driving signals from the remote controller 22. I remember.

In the present embodiment, the frequency of the current supplied to the pump driving motor by the inverter I is changed by the inverter I, thereby adjusting the rotation speed and the like, and changing the amount and pressure of the bath water to be blown out. be able to.

Next, the structure of the inverter I will be described in detail with reference to FIG.

That is, the inverter I includes a converter section 28 having a diode 28a, a smoothing circuit 29, and a switching circuit 30.
It is composed of

The converter 28 of the inverter I is connected to a single-phase AC 100 V power supply 31, and the converter 28 forms a rectifier circuit for rectifying the AC voltage.

Further, the smoothing circuit 29 obtains a constant DC voltage by the choke coil 32 and the capacitor 33.

Further, the switching circuit 30 is provided with six switching elements 34.

Further, an inverter control circuit 35 for the switching circuit is connected to the switching circuit 30, and the switching circuit 30 is operated by the control circuit 35 to drive the circulation pump driving motor M at a desired output frequency.

Further, an operation panel section 6 is connected to the inverter control circuit 35 via a control section C, and the inverter I is operated by the panel section 6.

 Next, the circulation pump P will be described in detail.

As shown in FIGS. 3 and 4, the circulating pump P communicates an upper impeller chamber 41 and a lower impeller chamber 42 in a pump case 40 by a communication channel 43, and also connects the lower impeller chamber 42 to the pump case 40. The pump case 40 communicates with the hot-water bath suction pipe 15 through a suction passage 44 provided on one side of the lower part.

Further, the circulation pump P is communicated with the bath hot water supply pipe 16 via a strong water supply path 46 provided on the other lower side of the pump case 40.

Further, the upper impeller chamber 41 is communicated with the filter 10 through a filtration channel 47, and the filter 10 and the hot water supply pipe 16 are connected by a return channel 47a.

An impeller shaft 48 is supported at the center of the upper and lower impeller chambers 41 and 42, an upper impeller 49 and a lower impeller 50 are mounted below the coaxial 48, and an upper part of the coaxial 38 is connected to a pump driving motor M. Of the driving shaft 51.

With such a configuration, the upper impeller chamber of the circulation pump P
41 and the filter 10 are communicated by a filtration flow path 47, a part of the bath water flowing into the lower impeller chamber 42 is sent to the filter 10 from the upper impeller chamber 41, and the filtered hot water is returned to the filter 10 by the filter 10. Channel
Bath water is sent to the strong feed pipe 16 via 47a so that it joins with the bath water from the lower impeller chamber 42.

Reference numeral 53 denotes a cooling fan, and 54 denotes a rotor of the drive shaft 48 of the pump driving motor M.

 Further, the configuration of the filter 10 will be described in detail.

As shown in FIG. 5, the filter 10 has a filter case.
Stretch acrylic mesh 56 at the bottom of 55
A filter medium 57 is placed on the filter 56, and a baffle 58 is provided on the inner surface of the upper wall of the filter case 55.

The upper end of the filter case 55 communicates with the filtration flow path 47, and the lower end of the case 55 communicates with the return flow path 57a.
Let it pass through.

Further, a filter heater for preventing freezing is provided on the outer periphery of the filter 10, and the bath water is prevented from freezing in the filter 10 by the heater.

An electric three-way valve 13 is provided in the middle of the filtration channel 47 so that the hot water can be drained from the electric three-way valve 13 through the drain pipe 10a.

Then, by operating the circulation pump P, the bath water circulation flow path D
The hot water in the bathtub body 1 is sucked in, and the hot water is drained from the pump P through the drainage pipe 10a via the electric three-way valve 13.

In the present invention, in such a configuration, the bath pump is drained through the drain pipe 10a by driving the circulation pump P, and the configuration will be described in detail below.

That is, a water level sensor 60 connected to the control unit C is provided on the inner surface of the bathtub body 1, and the water level sensor 60 is provided by the sensor 60.
The water level of the bath water inside is detected.

Then, the detection value from the water level sensor 60 is sent to the control unit C, and a signal is sent from the control unit C to the inverter I based on the detection value, and the inverter I converts the input frequency from the power supply 31 to drive the pump. The number of rotations of the motor M is controlled.

By operating the pump driving motor M, the rotation speed of the circulation pump P is changed, and the drainage amount and drainage pressure of the bath water are freely adjusted.

In particular, in the present embodiment, when the bathtub in the bathtub main body 1 runs short, the drive of the circulation pump P is controlled by the inverter I to perform slow drainage, thereby preventing noise due to the inflow of air.

An example of an operation state of the pump driving motor M by the inverter I is shown in FIG. 6 and FIG.
In the figure, the motor M is rotated at a high speed from the upper level L1 of the bathtub main body 1 to the ejection nozzle level L2, the medium speed is changed from the ejection nozzle level L2, and when the suction port level L3 is approached, the motor M is rotated at a low speed. I have to.

With the control of the inverter I, the drainage of the bathwater is slowly performed by the circulation pump P near the end of the drainage of the bathwater, so that noise due to the inflow of air from the suction port 17 can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bubble generating bathtub according to the present invention, and FIG.
FIG. 3 is a conceptual diagram of a bubble generating bath, FIG. 3 is an explanatory diagram showing a configuration of an inverter, FIG. 4 is a sectional view showing a configuration of a circulation pump, FIG. 5 is an explanatory diagram showing a structure of a filter, and FIG. FIG. 7 is a diagram illustrating the water level of the bath water, and FIG. 7 is a graph showing the operating state of the pump driving motor. In the figure, A: Bubble generation bath P: Circulation pump C: Control unit I: Inverter 12: Pump drive motor 10a: Drain pipe

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mitsuaki Hashida 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Tochiki Kikai Co., Ltd. Chigasaki Plant (72) Inventor Koichi Uchiyama 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture No. Tochiki Kikai Co., Ltd. Chigasaki Plant (72) Inventor Kenji Moriyama 2-8-1, Honmura Chigasaki City, Kanagawa Prefecture Totoki Kikai Co., Ltd. Chigasaki Plant (56) References JP-A-3-1867 (JP, A JP-A-2-3077459 (JP, A) JP-A-59-48629 (JP, U) JP-A-2-1140 (JP, U) JP-A-42-12297 (JP, Y1) (58) Field (Int.Cl. ⁶ , DB name) A61H 23/00 520

Claims (2)

(57) [Claims] 1. A bath water circulation flow path comprising a bathtub body, a circulation pump, a bathwater suction flow path and a bathwater forcible flow path interposed between the circulation pump and the bathtub body, A jet nozzle provided in the bathtub main body and formed at the terminal opening of the bath hot water supply channel, and an air intake portion connected to and connected to the bath hot water circulation channel. A discharge pipe connected to a downstream side of the circulating pump through a switching valve to discharge the hot water in a bubble generating bathtub capable of being jetted into the bathtub body; and a control means for driving a motor for driving the circulating pump. A bubble generation bath having an automatic drainage function, comprising: 2. A bubble generating bath having an automatic drainage function according to claim 1, wherein said control means includes means for controlling the number of revolutions of a motor for driving a circulation pump.