JP2005177225A - Bubble bathtub apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bubble bathtub apparatus preventing pump idling due to the air in a suction pipe according to the rotation speed of a circulating pump, providing a comfortable bubble jet flow without affected by a pipe system and exhausting the air in piping due to a fault of a suction pipe work. <P>SOLUTION: This bubble bathtub apparatus is so formed that an inlet 6 and an outlet 7 are connected to the circulating pump 2 using the suction pipe 8 and a discharge pipe 7, the circulating pump 2 circulates bathtub water in the bathtub 1, and the jet flow mixed with the air is jetted out from the outlet 7. The apparatus is further provided with a sensor 3 for detecting the rotation speed of the circulating pump 2 and controls the rotation speed of the circulating pump 2 according to the output of the sensor 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bubble bathtub apparatus that can easily and reliably discharge air from bathtub piping.

  As a bathtub installed in a bathroom of a house, etc., a bubble tub device that generates a bubble jet while circulating the bathtub water in the bathtub is known. The bubble jet generated in the bathtub is comfortable for massage, heat, and washing. Bathing is realized.

  FIG. 4 is a configuration diagram of a conventional bubble tub apparatus, and in order to generate a bubble jet while circulating bathtub water in the bathtub 1, a suction pipe is provided at the suction port 6 and the discharge port 7 provided in the bathtub 1. The circulation pump 2 is connected through the discharge pipe 8 and the discharge pipe 9. 4 is an operation switch, 5 is a control part. The suction pipe 8 and the discharge pipe 9 that connect the bathtub 1 and the circulation pump 2 are prepared in a number of lengths and bends according to the form of the bathtub 1 and the installation location of the circulation pump 2.

  For example, the bathtub size is prepared for the bathtub 1 according to the bathroom. In addition, even in the same size bathtub, there are many backrest portions and bent tub-inclined shapes on the foot side in order to improve satisfaction at the time of bathing. When the bathtub is a bubble tub, the suction port 6 is attached to the lower flat portion as much as possible so that there is no influence of suction or the like on the foot or body during bathing. The discharge port 7 is attached at a position where a comfortable bubble jet can be obtained during bathing. Since the circulation pump 2 is installed in a place with an installation space, the place is determined by the bathroom. Therefore, although the suction pipe 8 and the discharge pipe 9 that connect the circulation pump 2 and the bathtub 1 are designed to be shared, there are various pipe shapes.

  In such a bubble bath, safety measures are taken in consideration of various troubles. As for the safety device, if there is no bathtub water in the bathtub and the bubble generating device is accidentally operated and the idle operation is performed, the bath water during operation is used when the circulation pump 2 is other than the self-priming type. Therefore, the circulation pump 2 is operated with no load, and there is a risk of damage such as seizure of the rotating portion of the circulation pump 2.

Therefore, conventionally, a water level sensor such as an electrode rod or a float switch or a pump rotation speed detection function is provided in the circulation pump 2 or a portion corresponding thereto to check the presence or absence of bath water.
JP 05-23375 A

  However, in the variety of connection piping of the conventional bubble generating device, the flow rate at the discharge port 7 varies depending on the piping resistance of each piping. If the pipe resistance is small or if the bend is short and the pipe length is short, the performance of the circulating pump 2 will be as set, but if there are many bends and the pipe length is long, the pipe resistance will cause The flow rate decreases and a comfortable jet cannot be obtained. Therefore, in order to obtain a comfortable bubble, there is a problem that the shape, input, and the like increase because the circulating pump 2 is set when the pipe resistance is large.

  Moreover, in the bubble bath when the pipe resistance is small, the setting of the circulating pump 2 makes the bubbles stronger than the setting, and the place where the jet hits the body at the time of bathing may become painful or itchy.

  In addition, in the bubble bath, for the safety device described above, in the case of a water level sensor for detecting the water level, in the case where the air in the sensor part cannot be removed, the water level sensor has bath water. When there is a possibility of OFF output or when the air in the pipe cannot be removed, there is a possibility that the number of pump rotations increases and a state where there is no water is detected. In order to prevent such malfunctions, it is conceivable to set an air vent valve, etc., but it becomes complicated because it is necessary to install components such as connection settings and an air vent valve, which increases the cost burden. Become.

  Therefore, the present invention can prevent idling of the pump by the air in the suction pipe depending on the number of rotations of the circulation pump, can provide a comfortable bubble jet regardless of the influence of the piping system, and the piping due to malfunction of the suction pipe construction It aims at providing the bubble tub apparatus which can discharge | emit the air in the inside.

  The bubble bathtub apparatus of the present invention includes a bathtub provided with a suction port and a discharge port, a circulation pump, and a suction pipe and a discharge pipe that respectively connect the suction port, the discharge port, and the circulation pump. A bubble tub device that circulates water and ejects a jet mixed with air from the discharge port, provided with a sensor for detecting the number of revolutions of the circulation pump, and the number of revolutions for discharging the air in the pipe. I tried to control it.

  According to the bubble tub device of the present invention, it is possible to prevent the pump idle operation by the air in the suction pipe depending on the rotation speed of the circulation pump, and to provide a comfortable bubble jet regardless of the influence of the piping system. It is possible to exhaust the air in the piping due to construction problems.

  Hereinafter, a bubble tub apparatus according to an embodiment of the present invention will be described. FIG. 1 is a configuration diagram of a bubble tub device in one embodiment of the present invention, FIG. 2 is a block diagram of a control unit of the bubble tub device in one embodiment of the present invention, and FIG. 3 is in one embodiment of the present invention. It is a figure which shows the relationship between a bathtub water flow rate and the rotation speed of a circulation pump.

  1 and 2, 1 is a bathtub, 2 is a circulation pump, 3 is a sensor for detecting the number of revolutions of the circulation pump 2, 4 is an operation switch of the circulation pump, 5 is a control unit, 6 is a suction port, and 7 is a discharge port. , 8 is a suction pipe, 9 is a discharge pipe, 10 is a microcomputer for controlling the pump drive circuit 12 by the number of revolutions obtained from the sensor 3 for detecting the number of revolutions, and 11 is an air intake section provided at the discharge port 7. is there.

  About the bubble bathtub apparatus comprised as mentioned above, the operation | movement is demonstrated below. First, when the bathtub water is filled in the bathtub 1, the operation switch 4 is operated, the rotational speed detection sensor 3 is detected and actuated, and the controller 5 operates the circulation pump 2. At this time, air is taken in from the air intake 11 by the jet water flow through the jet circulation path from the suction port 6 to the discharge port 7, and a bubble jet is jetted from the discharge port 7. In FIG. 3, for example, it is assumed that the bathtub water flow rate is Q2, which is insufficient with respect to the target flow rate Q1. Therefore, the circulation flow rate N2 of the flow rate Q2 is increased to N1 to obtain a target flow rate, and a comfortable bubble tub is obtained. When the bath water flow rate is Q3 and excessive with respect to the target flow rate Q1, the circulating pump rotational speed N3 is reduced to N1 and set to the target flow rate Q1. The rotational speed control of the circulation pump 2 is performed by, for example, PWM control, but other methods such as voltage control may be used.

Moreover, when using for the water level detection of bathtub water, if the driving | operation switch 4 is operated and the rotation speed N4 is exceeded, for example after 5 second, it will be judged as idle driving | operation and the circulation pump 2 will be stopped. When there is air in the suction pipe 8, even if there is water in the bathtub, the rotation speed N4 may be exceeded. For this reason, although the circulation pump 2 stops, since the user does not know the air in piping, it may be judged that the circulation pump 2 is malfunctioning. Since the air discharge amount of the circulation pump 2 is proportional to the time and the rotation speed, the air in the pipe is discharged by maintaining the rotation speed high for 7 seconds or more after the operation of the circulation pump 2. After a certain period of time, the number of rotations used is assumed.

  In addition, when the rotational speed N4 is exceeded, the circulation pump 2 is stopped and, for example, by controlling to automatically restart after 1 second, the air in the circulation pump 2 is discharged instantaneously, The user can enjoy a comfortable bubble tub without feeling trouble.

  Since the bubble tub device of the present invention employs a method for controlling the rotation speed, the rotation speed can be detected and controlled without deteriorating the characteristics of the circulation pump, and the air in the suction pipe can be discharged. It is useful as a bubble tub device that is comfortable for the user, eliminating problems with piping configuration and construction.

The block diagram of the bubble bathtub apparatus in one embodiment of this invention The block diagram of the control part of the bubble bathtub apparatus in one embodiment of this invention The figure which shows the relationship between the bathtub water flow volume in one embodiment of this invention, and the rotation speed of a circulation pump. Configuration diagram of conventional bubble bath apparatus

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation pump 3 Sensor for rotation speed detection 5 Control part 6 Suction port 7 Discharge port 8 Suction tube 9 Discharge tube

Claims (3)

A bath provided with a suction port and a discharge port, a circulation pump, and a suction pipe and a discharge pipe for connecting the suction port, the discharge port and the circulation pump, respectively. A bubble tub device for jetting a jet mixed with air from an outlet, wherein a sensor for detecting the number of revolutions of the circulation pump is provided, and the number of revolutions is controlled to discharge air in the pipe. Bathtub equipment. The bubble tub device according to claim 1, wherein the operation of the circulating pump is continued when the output value of the sensor becomes an output value equal to or higher than a preset rotational speed. 2. The circulating pump is stopped when the output value of the sensor becomes an output value equal to or higher than a preset rotation speed, and automatically restarted after a predetermined time. Bubble tub equipment.

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