JPH0731785Y2 - Ultrasonic generator in bubble generating bath - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an ultrasonic wave generator in a bubble generating bath.

(B) Conventional technology A circulation pump is connected to a jet port that opens toward the inside of the bathtub, and an air supply pipe is connected to the jet port so that air bubbles are ejected from the jet port into the bathtub together with the bath water. There is a bubble generating bathtub which has a massage effect by a jet flow and a therapeutic effect by ultrasonic waves generated when bubbles burst.

There is also an electronic ultrasonic wave generator attached to the bathtub to achieve the above therapeutic effect.

(C) Problems to be solved by the device However, even if the massage effect due to the jet flow is satisfactory, the ultrasonic wave generated when the bubbles burst is weak, so expect a therapeutic effect by the ultrasonic wave. I couldn't.

Further, the electronic ultrasonic wave generator also has a problem that the power of the ultrasonic wave generated is too small to expect a therapeutic effect.

(D) Means for Solving the Problems The present invention provides an impeller, which is covered with a casing having an outer surface and an annular peripheral wall, on the inner wall of the bathtub, and the suction portion for inhaling the bath is provided at the center of the outer surface of the casing. While providing the mouth, a large number of openings are provided in the annular peripheral wall, and further, an annular barrier is concentrically linked to the annular peripheral wall of the casing on the outer circumference of the impeller, and a large number of openings are provided in the annular barrier. And the number of openings of the annular peripheral wall and the number of openings of the annular barrier are set to be relatively prime to each other, the ultrasonic generator in the bubble generator.

(E) Action / Effect According to the present invention, the bath water is accelerated in the outer peripheral direction of the impeller by the rotation of the impeller, but the movement of the bath water is prevented by the barrier surrounding the outer periphery of the impeller and the casing covering the impeller. It can be jetted out of the casing only when it is blocked and the opening provided in the barrier and the opening provided in the casing match.

Therefore, the number of openings provided in the barrier and the number of openings provided in the casing are relatively prime, for example, 27:28.
If set to, the opening is 756 while the impeller makes one revolution.
When the impeller is rotated at 3000 rpm, the opening opens and closes 37800 times per second, and the water pressure outside the casing fluctuates as the opening opens and closes. Sound waves can be generated.

Since the impeller can be driven by a motor or the like, the frequency and strength of the required ultrasonic waves can be increased by adjusting the rotation speed and power of the motor, and the treatment To meet the ultrasonic frequency and power requirements.

As described above, the strength of the ultrasonic waves generated in the bathtub can be adjusted at a much higher level than that generated when a bubble bursts or an electronic ultrasonic generator, and the frequency and strength can be adjusted. By doing so, a powerful therapeutic effect can be achieved.

(F) Embodiments An embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, (A) shows a bubble-generating bath, and the bath (A) has a brim-shaped edge portion with a constant width on the periphery. (1) is formed, and the controller (a) is arranged at a predetermined position of the edge portion (1).

A circulation pump section (B) is provided outside the bathtub (A), and a bath water circulation pipe (C) is provided between the bathtub (A) and the circulation pump section (B). Intervenes.

That is, the bath hot water circulation pipe (C) is a bubble generating bath (A).
From the pump (B) to the bathtub suction pipe (C-1) for sending the bathwater from the circulation pump (B) to the circulation pump (B)
Bath water return pipe (C-2) for sending the bath water in the form of a jet
And the suction pipe (C-1) is
One end is opened in the lower part of the bubble generating bath (A) and the other end is communicated with the water inlet of the pump body (b) of the circulation pump section (B) so that the bath water is sucked into the pump body (b). The bath hot water recirculation pipe (C-2) has one end communicating with the drain of the pump body (b), and the foot side jet port (2) and the back side jet port (3) opened at the front and rear lower parts of the bathtub (A). ) Communicates with the other end.

An air supply pipe (4) is separately provided for communication with the bath hot water return pipe (C-2) in the vicinity of each of the jet outlets (2) and (3). Therefore, the pump in the circulation pump unit (B) is connected. By driving the main body (b), the bath water in the bubble generating bath (A) is sucked through the bath hot water suction pipe (C-1), and is forcedly injected from the bath hot water return pipe (C-2) to the foot side. Exit (2),
It spouts from the back jet port (3) into the bubble generating bath (A).

At this time, air was forcibly sucked from the air supply pipe (4) communicating with the vicinity of the respective jet outlets (2) and (3) by using the negative pressure of flowing hot water in the hot water, and thus sucked and mixed in the hot water. The air becomes bubbles and is ejected together with the bath water from the ejection ports (2) and (3).

A jet flow switching valve (5) is provided in the middle of the bath hot water recirculation pipe (C-2) from the pump body (b) to the bubble generating bath (A), and the valve (5) is operated. The bath water can be switched between the foot side and the back side by the foot side air bubble control valve (6) at the base end of the air supply pipe (4) so that the air bubbles can be adjusted depending on the amount of intake air. When,
A back-side air bubble control valve (7) is connected in series, and the valves (5), (6) and (7) are respectively arranged in the controller (a) at the edge (1) of the bathtub.

That is, as shown in FIG. 2, the controller (a)
Forms a slightly descending controller table (a-1) at the edge (1) of the bathtub, and handles (5) (6) (7) of the valves (5) (6) (7) above the table (a-1). ′)
(6 ') and (7') are installed and each valve (5) (6)
(7) is provided so as to extend downward from the edge (1).

A bubble generation switch (D) is arranged substantially in the center of the controller (a), and an output signal is generated by operating the switch (D), and the output signal is transmitted to the bathroom wall. It is configured so that the pump body (b) is driven / stopped by the control device (8) attached to the above, and the jet of the bath water for generating bubbles is performed.

An operation line (9) is connected to the circulation pump section (B) from the control device (8), and an electric wire (10) for energizing from an AC power source is supplied from the circulation pump section (B). It is connected.

In this bubble generating bathtub (A), in the present invention, a recess (11) is formed on the side wall of the bathtub (A), and the recess (11) is formed.
An ultrasonic wave generator (E) is arranged inside.

As shown in FIGS. 3 and 4, the ultrasonic wave generator (E) includes an impeller (12), a casing (13) covering the outer periphery of the impeller (12), and a motor (14) for driving the impeller. Has been done.

The impeller (12) has a large number of blades (16) projecting radially from the center on the outer surface of a substantially disk-shaped substrate (15) to form a radial flow type impeller (12), and the substrate (15). An annular barrier (17) is connected to the blade (16) side end of the outer periphery of the blade (1
6) is not enclosed, and 27 openings (18) are provided at equal intervals in the barrier (17).

The casing (13) covers the outer periphery of the impeller (12) with a slight gap, and at the center of the outer surface thereof, an intake port (19) for inhaling bath water is opened, and the barrier ( 1
The annular peripheral wall (13a) opposite to 7) is provided with 28 openings (20) at equal intervals.

The motor (14) is arranged outside the recess (11), and the drive shaft (21) of the motor (14) penetrates the side wall of the recess (11) and is connected to the center of the impeller (12). Has been done.

The motor (14) is controlled by the control device (8) via the inverter (22).

Therefore, the rotation of the impeller (12) causes the suction port (1
The bath water sucked into the casing (13) from the 9) is accelerated toward the outer circumference of the impeller (12), but the barrier (17) and
Movement is blocked by the casing (13), and only when the opening (18) provided in the barrier (17) and the opening (20) provided in the same casing (13) coincide with each other, the casing (13) It will gush out.

Therefore, if the number of openings (18) of the barrier (17) and the number of openings (20) of the casing (13) are set to be relatively prime, for example, 27:28, the impeller (12) will be The openings (18) (20) open and close 756 times during one rotation, and when the impeller (12) is rotated at 3000 rpm (standard rotation speed of a 2-pole motor driven by a 50 Hz AC power supply), 27 × 28 × 3000/60 seconds = 37,800 / second That is, the openings (18) (20) are opened and closed 37,800 times per second, and the casing (13) is opened and closed in accordance with the opening and closing of the openings (18) (20). ) As the external water pressure fluctuates,
It can generate ultrasonic waves of about 38 kHz. here,
Coprime numbers are numbers that do not have a common factor other than one, and other than 27 and 28, 34 and 35, 41 and 42.
There are various combinations.

Since the rotation speed of the motor (14) can be controlled by the inverter, it is possible to adjust the frequency and strength of the generated ultrasonic waves.

The shape of the concave portion (11) is formed into a paraboloid of revolution as shown in FIG. 5 so that ultrasonic waves have directivity or resonance as shown in FIG. A room (23) may be provided to emphasize a particular frequency.

As described above, in the present invention, the strength of the ultrasonic waves generated in the bathtub is much higher than that generated at the time of bubble burst or that generated by the electronic oscillator, and the frequency is higher. Also, by making the strength adjustable, it is possible to reliably expect the therapeutic effect of the ultrasonic waves.

[Brief description of drawings]

FIG. 1 is an overall explanatory view of a bubble generating bath of the present invention, FIG. 2 is a sectional explanatory view of a controller, FIG. 3 is a sectional explanatory view of an ultrasonic generator, and FIG. 4 is a sectional view taken along line I-I of FIG. Figure, Figure 5,
FIG. 6 is a sectional view of a modified example of the shape of the recess. (A): Bubble generating bath (E): Ultrasonic generator (12): Impeller (13): Casing (13a): Annular peripheral wall (17): Barrier (18) (20): Opening

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mitsuaki Hashida, Inventor 2-8-1, Motomura, Chigasaki-shi, Kanagawa Tochiki Co., Ltd., Chigasaki Plant (72) Koichi Uchiyama 2--8-1, Motomura, Chigasaki, Kanagawa No. Tochi Kikai Co., Ltd. Chigasaki Plant (72) Inventor Kenji Moriyama 2-8-1, Honmura, Chigasaki City, Kanagawa Prefecture Tochi Kikai Co., Ltd. Chigasaki Plant (56) Reference JP-A-52-51786 (JP, A) ) JP-A-63-209655 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. An inner surface of a bathtub, an outer surface and an annular peripheral wall (13a).
An impeller (12) covered with a casing (13) provided with is provided with an inlet (19) for inhaling bath water at the center of the outer surface of the casing (13), while an annular peripheral wall (13) is provided.
a) is provided with a large number of openings (20), and further, on the outer periphery of the impeller (12), an annular barrier (17) is concentrically connected to the annular peripheral wall (13a) of the casing (13), And,
A large number of openings (18) are provided in the annular barrier (17), and the number of openings (20) of the annular peripheral wall (13a) and the number of openings (18) of the annular barrier (17) are mutually different. An ultrasonic wave generation device in a bubble generation device, characterized in that it is a prime number.