JPH0724678B2 - Bubble generation bath with bubble jet control - Google Patents

Description

Description: (a) Field of Industrial Application The present invention relates to a bubble generating bathtub capable of controlling bubble jet flow for generating jet bubbles in a bathhouse.

(B) Conventional Technology Conventionally, a device for generating jet-like bubbles in a bathtub is the first
The main parts are constituted by (3), (4), (5), (6), (7) and (8) in the figure, and the shape of the nozzle (3) and the valve (4)
From the nozzle (3) to the bath depending on the interrelation between the openness of the nozzle, the air intake of the intake hole (5), the type of pump (6), the effective cross-sectional area of the water pipe (7), and the use of the motor (8). (1)
The amount of air bubbles (2) blown in and the discharge pressure are constant,
It operates continuously at a constant pressure.

Ultrasound emitted when bubbles burst in the bathtub, neuralgia,
It is a known fact that it has an effect on rheumatism and the like.

Moreover, if the discharge pressure of the bubbles blown from the nozzle (3) is moderately strong, it stimulates the body and accelerates the structure, so that the user plays the role of relieving muscle pain and stiff shoulders. Acknowledged as a positive effect.

The bubble generation bath which can control the bubble jet is introduced for the purpose of these effects.

(C) Problems to be solved by the invention However, when bubbles having a strong discharge pressure are continuously applied to the back, shoulders, etc., it feels uncomfortable even when performing a deep breath to expand and contract the muscles. It is also known by some users that sometimes they feel stuffy, and even it becomes difficult to breathe.

Further, as a means for increasing the discharge pressure more than necessary, in other words, for weakening an excessively installed one, there is only a method of adjusting with the valve (4), which is wasteful in terms of power saving. On the other hand, the equipment that is weaker than the plan has no means for strengthening it from an economic point of view, and is actually idle equipment.

Even if the equipment has an appropriate strength as calculated, the pressure loss will gradually increase due to the accumulation of water, dust, etc. in the nozzle (3) and the water pipe (7) over time,
An appropriate discharge pressure cannot be obtained.

The present invention, by simple means, alleviates the above-mentioned drawbacks, enables the equipment operator to save power and effectively use the new and old equipment, and also provides the user with comfort. An object of the present invention is to provide a bubble generation bath capable of controlling bubble jet flow.

(D) Means for Solving the Problems The present invention provides a jetting nozzle and a hot water suction hole for circulating hot water in a bath body, and the nozzle and the hot water suction hole are connected by a water pipe, A motor-driven pump is installed midway so that the bath water in the bathtub can be circulated through a water pipe, and air is sucked from the midway of the circulation to generate jet bubbles in the bathtub from the nozzle. In the bubble generation bath configured as described above, the rotation frequency of the motor is controlled periodically by changing the frequency from the AC power supply according to a preset program for periodically changing the bubble injection flow rate and the jet pressure. The present invention relates to a bubble-generating bath capable of controlling bubble jet flow.

This will be explained with reference to the drawings. In FIG. 1, the discharge force (e) and (f) are changed by the frequency setting device (12) to change the discharge force (e) and (f) by the start / stop time setting device (13). b) and (d), and holding times (a) and (c) of the ejection forces (e) and (f) are set by the holding time setting device (14).
According to a program based on these combinations, the input frequency supplied from the AC commercial power source (15) is processed by the inverter (10), and frequency conversion is performed. The number of revolutions of the motor (8) is controlled in proportion to the output frequency generated by the inverter (10), which is transmitted to the pump (6) and ejects the bubbles (2) ejected from the nozzle (3). Change the amount and discharge pressure according to the program.

With the series of control methods described above, it is possible to solve the above-mentioned problems of the conventional technology.

(E) Operation If the above control method is used, the output that exceeds the motor capacity as continuous rating can be output temporarily, and the discharge pressure of strong and weak can be output periodically and arbitrarily. hand,
A wide variety of utilization methods can be obtained for facilities and users.

(F) Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 2 and 3. FIG. 2 shows, as an example, the relationship between the discharge force and the time when the state of the bubbles (2) in the bathtub (1) is cyclically changed by the foaming pressure strong / weak cyclic operation device for a bath of the present invention. It is a thing.

Here, (e) shows the ejection force at the time of light load, and (f) shows the ejection force at the time of overload. The allowable maximum value of the output frequency that determines the maximum allowable value of the discharge force (f) is in a range that does not shorten the life of the equipment, that is, the temperature rise of the motor (8), the proof stress of mechanical parts such as bearings, and the pump (6). The bearing capacity, blades, mechanical strength, and other factors, such as the pressure strength of the water pipe, are taken into consideration when making the determination. Figure 3 shows (a ₁ ) (b ₁ ) (c ₁ ) of Figure 2.
In the state of (d ₁ ), air bubbles are discharged in the bathtub (1), and an effective bathing method at that time is illustrated as an example.

(A ₁ ) shows the state of resting with the shoulders relaxed. (B ₁ ) shows a state in which the number of bubbles blown out from the nozzle gradually increases and the deeper the breath takes, the stronger it becomes.

(C ₁ )) shows the state of holding the breath as it is and applying strong air bubbles to the acupoint of the shoulder. (D ₁ )) shows the state in which the shoulder is relaxed while exhaling slowly.

(G) Effect of the Invention As described above, according to the present invention, the bubble ejection amount and the ejection pressure can be periodically changed, and further, the rotation speed of the motor is periodically controlled according to a preset program. , It is possible to freely make a periodic change of the bubble jet, and therefore, it is possible to obtain a sufficient therapeutic effect of the ultrasonic waves of the bubble and also to enjoy the play associated with the bubble jet change. The power consumption necessary to obtain such an effect can be saved as much as possible, and is as shown in the following equation.

E = y [1-((f ₁ ³ t ₁ + 2f ₂ ³ t ₂ + f ₃ ³ t ₃ ) / (t ₁ + 2t ₂ + t ₃ ))] x 100% where E: Saving compared to continuous operation Power factor (%) f ₁ : Maximum output frequency / power frequency f ₃ : Minimum output frequency / power frequency f ₂ : (f ₁ + f ₃ ) / 2 t ₁ : Duration of maximum output frequency t ₃ : Minimum output frequency Duration t ₂ : Acceleration / deceleration time between maximum and minimum frequencies y: Electric efficiency In addition, since the motor speed is controlled by changing the frequency from the AC power supply, the motor speed can be easily adjusted to an arbitrary value. Since it is controlled by the form, and it is transmitted to the pump to change the discharge amount and discharge pressure of bubbles discharged from the nozzle, the bather can change the discharge amount and discharge pressure of bubbles to the strength of his or her preference. Alternatively, the treatment can be performed weakly, and the therapeutic effect can be further improved with the discharge pressure most suitable for the affected area of the bather.

[Brief description of drawings]

FIG. 1 is a system diagram of a bubble generation bath capable of controlling bubble jet flow according to the present invention, among which (3), (4), (5) and (6) are shown.
(7) and (8) are systematically the same as the conventional device for generating jet-like bubbles in the bathtub. FIG. 2 shows an operation example of the bubble generation bath capable of controlling the bubble jet flow according to the present invention, and is shown as a relationship between the discharge force and time. FIG. 3 shows an example of how to use the bather in each state shown in FIG. (1): Bathtub (2): Bubble (3): Nozzle (4): Valve (5): Intake hole (6): Pump (7): Water pipe (8): Motor (9): Noise reduction AC reactor (11): Zero-phase reactor for reducing radio noise

Claims (1)

[Claims] 1. A bathtub body (1) is provided with a nozzle (3) for jetting and a hot water suction hole (16) for circulating hot water, and a water pipe (3) is provided between the nozzle (3) and the hot water suction hole (16). 7), the pump (6) driven by the motor (8) is provided in the middle of the water pipe (7) to circulate the bath water in the bathtub through the water pipe (7), and In a bubble-generating bath configured to suck air from the middle of circulation and generate jet-like bubbles from the nozzle (3) in the bath, preset to change the bubble jet flow rate and jet pressure periodically. A bubble generation bath capable of bubble jet control, wherein the number of revolutions of the motor (8) is periodically controlled by changing the frequency from an AC power source according to the program.