JPH0295369A - Bubble generating bathtub - Google Patents

Abstract

PURPOSE:To prevent useless power consumption and heat generation of a motor of a circulating pump, and also, to facilitate the operation by constituting the title bathtub so that a rotational speed of the circulating pump is controlled by an inverter for a frequency conversion. CONSTITUTION:To a bath hot water reflux pipe C-2 in the vicinity of an exhaust nozzle 5, a suction pipe 4 is allowed to communicate and branch, and by a circulating pump B, bath hot water in a bathtub A is sucked from a bath hot water suction pipe C-1, and injected from the exhaust nozzle through the bath hot water reflux pipe C-2. In this case, from the suction pipe 4 which is allowed to communicate in the vicinity of the exhaust nozzle 5, air is sucked forcibly by utilizing bath hot water flow negative pressure, and air which is sucked into bath hot water and mixed becomes bubbles, and exhausted from the exhaust nozzle 5 together with bath hot water. In this regard, as for the circulating pump B, its rotational speed is controlled by an inverter 30 provided on a controller 8 connected to a controller (a), and said pump can control strength of a jet of circulating bath hot water from the exhaust nozzle 5.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a bubble generating bathtub.

(b) Conventional technology Conventionally, there have been bubble-generating bathtubs that generate air bubbles in bath water and utilize the pine surge effect caused by the air bubbles and the ultrasonic waves generated when the air bubbles burst to provide therapeutic effects and relieve fatigue. A circulation pump is installed outside the bathtub to circulate the bathwater, and the circulating bathwater sucks air, and the air is ejected into the bathtub along with the bathwater to generate air bubbles in the bathwater. In order to adjust the strength of the jet of circulating bath water, a throttle valve is interposed between the spout provided in the bathtub and the circulation pump, and the strength of the jet flow is adjusted by operating the throttle valve. I was doing it.

(c) Problems to be Solved by the Invention However, adjusting the strength of the jet flow using a throttle valve causes a large pressure loss and wastes power, and also overloads the motor of the circulation pump, causing the motor to generate heat. There was a drawback.

In addition, the throttle valve is troublesome to operate, and if the throttle valve were to be operated electrically, the electric circuit would be complicated.

(d) Means for Solving the Problems In the present invention, a bath water circulation pipe consisting of a bath water suction pipe and a bath water return pipe is interposed between a bathtub and a circulation pump installed outside the bathtub, In a bubble-generating bathtub configured to connect an intake pipe midway through the bathwater return pipe and generate bubbles at the same time as the bath water is jetted out from the spout of the bathwater return pipe, an inverter for frequency conversion is used to change the rotational speed of the circulation pump. It is an object of the present invention to provide a bubble generating bathtub characterized in that it is configured to control the bubble generation.

(E) Functions and Effects In the present invention, the rotational speed of the circulation pump is controlled by an inverter for frequency conversion, thereby preventing the above-mentioned wasteful power consumption and heat generation of the circulation pump motor. It also has the effect of eliminating troublesome operations and complicated electrical circuits.

Example) The first example of the present invention will be described in detail based on the drawings.
In the figure, (A) shows a bubble-generating bathtub, and the bathtub (A) has a flange-shaped edge (1) of a constant width on its periphery, and a controller is installed at a predetermined location on the edge (1). (a) is provided.

In addition, the bubble generating bathtub (^) has multiple spouts (5).
A bubble generator (E) is connected to each spout (5), and the bubble generator (E) is connected to a circulation pump (B), a bathtub (A), and a bubble generator (E). It consists of a bath water circulation pipe (C) interposed between the bath water circulation pipe (B) and the bath water circulation pipe (C).

In other words, the bath water circulation pipe (C) is connected to the bubble generating bathtub (A).
A bath water suction pipe (c-i) for sending bath water from the pump (B) to the circulation pump (B), and a bath water return pipe (c-i) for sending bath water in a jet form from the same pump (B) to the same bathtub (A). C-2).

The suction pipe (C-1) has one end opened at the bottom of the bubble-generating bathtub (A), and is configured to suck bath water into the circulation pump (B).

The bath water return pipe (C-2) has one end passed through the discharge port of the circulation pump (B), and the other end communicated with the spout port (5) opened at the bottom of the bubble generating bathtub (A).

Then, the bath water return pipe (C-2) near the spout (5)
) is connected with a separate suction pipe (4), and therefore, the bath water in the bathtub (A) is sucked in from the bath water suction pipe (C-1) by the circulation pump (B), The air will be ejected from the spout via the bath water reflux pipe (C-2), and at this time, the negative pressure in the bath water circulation will be applied to the air from the suction pipe (4) that communicates with the vicinity of the spout (5). The air thus sucked and mixed into the bath water becomes bubbles and is ejected from the spout (5) together with the bath water.

The circulation pump (B) is controlled by a controller (a) described later.
) and the control device (8) connected to the innoctor (3).
The rotational speed is controlled by 0), and the strength of the jet of circulating bath water from the spout (5) can be adjusted.

In addition, at the base end of the intake pipe (4), there is an air bubble control valve (6) so that air bubbles can be adjusted depending on the amount of intake air.
The valve (6) is arranged in the controller (a) on the edge (1) of the bubble generating bathtub.

Therefore, by operating the controller (a), the strength of the jet of circulating bath water and the amount of bubbles mixed into the bath water can be adjusted to control the strength of bubble generation in the bubble generating bathtub (^). Can be adjusted.

Then, the bubble generating device (F) is installed in the bubble generating bathtub (A).
), which are connected to two foot spout ports (2) and two dorsal spout ports (3) that open at the front and bottom of the
) The circulating bath water and bubbles are spouted into the bubble-generating bathtub (^).

As shown in FIGS. 3 and 4, the controller (a) has a slightly raised controller table (a-1) formed on the edge (1) of the bubble generating bathtub, and the controller table (a-1)
The handle (6°) of the bubble control valve (6) is arranged above, and each valve (6) is hung downward from the edge (1).
The amount of bubbles ejected from each of the ejection ports (2) and (3) into the bubble generating bathtub (A) can be adjusted.

In addition, each circulation pump (
An optical switch (7) is provided to control the rotation speed of B).

As shown in Figure 3, the light switch (7) has a water-resistant membrane (11) that also serves as an operation display, and a
It consists of a casing (13) to which 11) is attached, and a pressing body (14) built into the casing (13).

The pressing body (14) is provided with a blocking plate (16) that moves in the vertical direction by pressing the central part of the pressing tree (14), and the blocking plate (16) is provided with a blocking plate (16) on both sides of the blocking plate (16). The light emitting part (17) and the light receiving part (1
8) so that the bather can press the pusher (
14), the blocking plate (16) will close the optical fiber (2).
0) (21) and connect it with an optical switch (
7) is output to the control device (8) as an on signal.

When the above-mentioned signal is input, the control device (8) determines the duration of the signal, controls the drive/stop of each circulation pump (B) and the rotation speed, and adjusts the jet strength of the circulating bath water.

That is, as shown in FIG. 4, an inverter (30) is interposed in the drive circuit ([) of each circulation pump (B), and a photoelectric conversion element (32) is provided in the control device (8). The optical signal from the optical switch (7) is converted into an electrical signal, the output of the optical switch (32) is input to the integrating circuit (33), and a voltage proportional to the duration of the signal is converted to the V-F conversion element ( 34), and by inputting the output of the same element (34) to the trigger terminal (31) of the inverter (30),
Controls the frequency of the AC voltage that drives the circulation pump (B).

In the figure (35) is a drive power source.

Note that the integrating circuit (33) is configured to be reset when the output voltage is saturated.

Therefore, the frequency increases as the time that each optical switch (7) is pressed increases, and if the trigger frequency continues to be pressed beyond the upper limit, the output to the trigger terminal (31) will be increased. If the button stops and the button is pressed further, a cyclic control operation is performed in which the trigger frequency is gradually increased from the output stopped state, and the jet strength of the circulating bath water is adjusted.

As mentioned above, since the strength of the jet flow from the spout can be controlled with a simple operation of the controller, the bubble generation state can be expressed according to the bather's roar, and the bubble generation bathtub can be used for bathing. can be made comfortable.

In addition, FIGS. 5, 6, and 7 show the second embodiment, in which each spout (5), (5), etc. is individually provided with a first
A bubble generator (D) similar to that of the embodiment is installed to control the strength of the jet flow from each jet port (5) (5), etc. using an inverter (1).
Since the strength of the jet flow from each spout can be individually controlled, bathing can be made more comfortable.

FIG. 6 is a plan view of the controller, and FIG. 7 is a block diagram showing the configuration of the drive circuit.

^): Bubble generating bathtub B): Circulation pump C): Bath water circulation pipe C-1): Bath water suction pipe C-2): Bath water reflux pipe 30): Inverter

[Brief explanation of drawings]

Claims (1)

[Claims] 1) A bath water suction pipe (C-1) and a bath water return pipe (C-
A bath water circulation pipe (C) composed of 2) is interposed, and an intake pipe (4) is inserted in the middle of the bath water circulation pipe (C-2).
are connected to the spout (5) of the bath water reflux pipe (C-2).
) The bubble generating bathtub (A) is configured to generate bubbles at the same time as bath water is spouted out, and is characterized in that the rotation speed of the circulation pump (B) is controlled by an inverter (30) for frequency conversion. Bubbly bathtub.