JPH03224569A - Bubble generating bathtub having nozzle initial driving program at the time of turning on power source - Google Patents

Abstract

PURPOSE:To surely drive the valve body by preventing oil from adhering to the valve body by giving a high torque to a nozzle valve body opening/closing operation motor. CONSTITUTION:In the case a power source is turned on, and a valve driving detection sensor S1 in each exhaust nozzle 2-4 is turned on, the exhaust nozzles 2-4 are driven in the closed valve direction by an A operation of a large torque of a high voltage and a low speed. As a result, at the time of shipment of a bubble generating bathtub A from a plant, oil, etc., adhering to an exhaust quantity adjusting valve body 22, etc., are peeled off, and subsequent normal driving of the exhaust nozzles 2-4 is secured. Subsequently, in the case the valve driving detection sensor S1 is turned off as a result of driving in the closed valve direction by the A operation by a prescribed time, the exhaust nozzles 2-4 are driven in the closed valve direction by a B operation of the torque of a low voltage and a high speed and allowed to execute step-out. In such a way, the exhaust quantity adjusting valve body 22 can be allowed to abut softly on a valve seat 21f, and damage of the exhaust quantity adjusting valve body 22 and the valve seat 21f is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a bubble generating bathtub having a nozzle initial drive program when power is turned on.

(b) Prior art The present applicant previously proposed in Japanese Patent Application No. 63-230065 that a bath water suction channel and a bath water A bath water circulation flow path consisting of a flow path is provided, and the end of the forced bath water flow path is opened into the bathtub body to serve as a spout nozzle, and an air intake section is provided in the forced flow path for bath water. A bubble-generating bathtub has been disclosed in which the above-mentioned spouting nozzle is connected in communication so that bath water mixed with bubbles can be spouted into the bathtub body.

With this configuration, the circulation pump sucks the bathwater inside the bathtub body through the bathwater suction pipe, and the circulation pump causes the bathwater to pass through the bathwater delivery pipe and squirt it into the bathtub body from the discharge blow of the same pipe. At this time, the air intake is mixed with the air taken in by using the negative pressure caused by the hot water jetting out from the air intake part, so that the hot water mixed with bubbles can be jetted out. ing.

Furthermore, by opening and closing the jet nozzle, the jet amount and jet pressure can be changed, and the jetting location can be arbitrarily selected in cooperation with the circulation pump.

(c) Problems to be Solved by the Invention However, such bubble-generating bathtubs still have the following problems to be solved.

In other words, when a bubble-generating bathtub is shipped from a factory and installed in a home, hotel, etc., if the period from shipping to installation is long, oil may stick around the valve body of the motor for opening and closing the nozzle valve body. There is.

However, if the nozzle valve element opening/closing motor is driven at the normal drive voltage when the power is turned on at the installation location, the valve element cannot be moved forward or backward due to the adhesive force of the oil, and there is a risk of burning out the motor.

In addition, when the jet nozzle is driven at high output, when the valve body comes into contact with the valve seat, the valve body may bite into the valve seat, damaging the internal structure of the motor for opening and closing the nozzle valve body. ,
This may cause a decrease in output.

In addition, the above-mentioned jet nozzle does not have an abnormality detection function, so if a failure occurs in the motor for opening and closing the valve body for the nozzle, the motor continues to operate.
There was a possibility of personal injury due to burnout or electrical leakage to the bathtub body.

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

(d) Means for Solving the Problems The present invention provides a bathtub that includes a bathwater suction flow path and a bathwater forced flow path between a bathtub body and a circulation pump installed outside the bathtub body. A circulation flow path is provided, and the end of the forced bath water flow path is opened into the bathtub body to form a jet nozzle, and an air intake portion is connected in communication with the forced bath water flow path to form the jet nozzle. A bubble-generating bathtub configured to be able to spray bath water with more bubbles into the bathtub body, characterized in that the spray nozzle is an automatically variable spray amount nozzle, and the control section is equipped with the following spray nozzle initial drive program. This invention relates to a bubble generating bathtub having a nozzle initial drive program when the power is turned on.

That is, when the power is turned on, the control unit rotates the motor for opening and closing the nozzle valve body of the jet nozzle with high torque, and then rotates it with low torque to move the valve body to the valve seat that is in the fully closed position.
After that, the drive control is performed to retreat the valve body to the set open position using normal torque.Furthermore, during the execution of the above initial drive program, the valve drive detection sensor constantly controls the automatic variable ejection amount nozzle. The presence or absence of an abnormality is detected, and if there is an abnormality, the drive of the motor for opening and closing the nozzle valve body is stopped.

(E) Actions and Effects According to the present invention, the following actions and effects occur.

That is, in the present invention, when the power is turned on, high torque is first applied to the nozzle valve element opening/closing motor, thereby breaking the oil's binding to the valve element and reliably driving the valve element. , subsequent nozzle control can be performed smoothly and reliably.

After that, low torque was applied to the motor for opening and closing the valve body of the jet nozzle to rotate it in the valve closing direction, and the valve body was moved to and brought into contact with the valve seat which was in the fully closed position.
Damage to the valve body portion and damage to the internal structure of the nozzle valve body opening/closing motor can be prevented as much as possible.

Furthermore, in the present invention, since a valve drive detection sensor is provided that can detect the presence or absence of an abnormality in the nozzle valve element opening/closing motor by the forward and backward movement of the valve element support rod of the motor, it is easy to turn on the operation start switch. Moreover, it is possible to reliably detect whether or not the motor for opening and closing the nozzle valve body is abnormal.

Therefore, maintenance of the motor for opening and closing the nozzle valve body becomes easy, and it also reliably prevents electric leakage accidents to the bathtub body that would occur if a malfunctioning motor for opening and closing the nozzle valve body was continued to operate. be able to.

(F) Example Hereinafter, the structure of the bubble-generating bathtub according to the present invention will be specifically explained based on the example shown in the attached drawings.

[Overall structure of bubble-generating bathtub 1 First, the overall structure of the bubble-generating bathtub according to the present invention will be described.

In Figs. 1 to 3, A is a bubble-generating bathtub, and the bubble-generating bathtub A is equipped with feet that automatically change the amount of ejection, respectively, on the front and rear walls and left and right side walls of the bathtub body L, which is formed into a box shape with an opening on the top. A total of six lateral, dorsal, and ventral jet nozzles 2, 2, 3, 3, 4, 4 are provided.

The bathtub body 1 has a flange-like edge 1 having a constant width on the periphery.
a, an air intake portion 5 is provided on the same edge portion 1a, and a cross-sectional ■-shaped concave portion 1b, l is provided approximately at the center of the left and right side walls.
The ventral side jet nozzles 4, 4 are attached to the inclined surface of the concave portion 1b facing the rear wall (dorsal side) of the concave portion 1b, facing toward the center of the rear wall.

Moreover, the ventral side jet nozzles 4, 4 are installed at a higher position than the other leg side/dorsal side jet nozzles 2, 2.3.3, and spray bath water to the ventral side, chest side, and other parts of the human body. The ability to apply it reliably (I try to be able to do it).

In addition, a functional unit 9 is disposed outside the bubble-generating bathtub A. Inside the functional unit 9, there is a circulation pump P that circulates the bath water, and a circulation pump P that circulates the bath water.
A filter 43 that filters the bath water that is circulated, a pump drive motor M that drives the pump P, a motor M1 that operates the opening/closing of the valve body for the nozzle, which will be described later, and a valve body that opens and closes the valve body for adjusting the amount of air bubbles. An operating motor h and a control section C that controls the driving of the electric three-way valve 45 are provided.

Moreover, between the circulation pump P and the bubble generating bathtub A,
A bath water circulation flow path passing through the bathtub chamber wall W is interposed.

That is, as shown in FIGS. 1 and 3, the bath water circulation flow path includes a bath water suction pipe 10 for sending bath water from the bubble generating bathtub A to the circulation pump P, and from the circulation pump P. It is composed of a bath water bullet delivery pipe 11 for sending bath water to the bathtub A.

One end of the bath water suction pipe 10 is connected to the suction port 1- opened at the bottom of the bathtub body l, and the circulation pump P
The other end of the hot water blast pipe 11 communicates with the water inlet of the circulation pump P to draw bath water into the circulation pump P, while the other end of the hot water blast pipe 11 communicates with the water outlet of the circulation pump P with the other end communicating with the spout nozzle 2.2. ．．
The other ends are connected to 3, 3, and 4.4, respectively.

In addition, the above-mentioned suction port 1m is connected to the foot side/dorsal side jet nozzle 2.
, 2.3.3.

In addition, a pump drive motor M that drives the circulation pump P
As shown in FIG. 4, an inverter E is interposed between the inverter E and the control unit C, and the rotation speed of the circulation pump P is controlled by changing the output frequency of the inverter E. The discharge amount and discharge pressure can be changed smoothly and reliably.

There are also mild blow operations where the amount of hot water mixed with bubbles is relatively large and the blowing pressure is relatively low, and spots where the amount of hot water mixed with bubbles is relatively small and the blowing pressure is relatively high. Blow operation, pulse blow operation in which bubble-mixed bath water is intermittently ejected, and wave blow operation in which the ejection amount and ejection pressure are varied in a wave-like manner are possible.

In addition, a pressure detection sensor 48 is attached to the middle part of the bath water suction pipe lO (which can also be the suction side in the circulation pump P), as shown in FIG. In addition to detecting the amount, that is, the water level, the pressure of the bath water sucked into the circulation pump P through the bath water suction pipe 10 can be detected.

The control unit C is configured to control the start and stop of the blow operation, antifreeze operation, filter cleaning operation, and automatic machine cleaning operation based on the water level measured by the output from the pressure detection sensor 48. are doing.

The details of each of these operations are the same as those described in Japanese Patent Application No. 1-73367 previously filed by the present applicant.

In addition, as shown in FIG. 4, a bath water temperature detection sensor T is installed in the middle of the bath water bullet conveying pipe 11 to detect the temperature of the bath water being pumped through the pipe 11. The detection results are sent to the control unit C to control blow operation, antifreeze operation, filter cleaning operation, and automatic filter cleaning operation.

By using such bath water temperature detection sensor T, when the hot water supply does not meet the specified water temperature, the control unit C starts blowing operation, anti-freezing operation, filter cleaning operation, and automatic filter cleaning operation. I'm trying not to.

In addition, the air intake part 5 and each jet nozzle 2.2.3 described above are
．． 3.4.4, as shown in FIGS. 1 and 5, intake pipes 12a, 12b, and 12c are interposed, and the tips of each intake pipe 12a, 12b+12c are connected to each outlet. It is connected in communication with the nozzles 2, 2, 3.3.4.4.

Then, by using the negative pressure generated when the bath water is spouted from each spout nozzle 2, 2.3.3.4.4, the operation panel section 6 to be described later
The air taken in through the air intake port 6a provided at the top and the air intake section 5 connected to the lower part of the operation panel section 6 is passed through the intake pipes 12a, 12b, and 12c to each of the jet nozzles 2, 2, 3, 3, and 4. .4, and the bath water mixed with air bubbles can be spouted into the bathtub body 1 from each spout nozzle 2, 2, 3.3, 4.4.

Further, as shown in FIGS. 1 and 3, an operation panel section 6 is provided near the bathtub body l, and the operation of the bubble-generating bathtub A can be performed using the operation panel section 6. I'm trying to make it possible.

Note that the amount of mixed air is controlled by the operation of the motor M2 for opening and closing the valve body for adjusting the amount of air bubbles.

In FIG. 1, 30b is an infrared receiving sensor provided on the operation panel section 6, which receives infrared rays emitted from the remote controller 30. 30c is a reception indicator lamp provided on the operation panel section 6, and 30'' is a wall holder for the remote controller 30.

[Structure 1 of the Ejection Nozzle Next, the structure of the ejection nozzle 2, 2, 3.3, 4.4 used in the ejection nozzle drive control method which is the gist of the present invention is shown in the accompanying drawings, particularly in FIGS. This will be explained in detail with reference to FIG.

The foot side, dorsal side, and ventral side spout nozzles 2, 2, 3, 3, and 4.4 are automatically variable spout nozzles with the same configuration that can automatically change the spout volume and jet pressure of bath water, respectively. The structure of the foot-side jet nozzle 2 will be described below with reference to FIGS. 5 to 11.

(Overall configuration of the jet nozzle) As shown in FIG. 6, the foot jet nozzle 2 is essentially a cylindrical nozzle that is cantilevered to the foot jet nozzle connection port 1g of the bathtub body 1. Inside the casing 20, there are: (1) a jet forming part 50 that forms the bath water flowing in from the bath water bullet delivery pipe 11 into a jet; and (2) a mixing effect due to ediku effect and turbulence on the bath water in a jet state from the jet forming part 50. an air mixing part 70 that mixes air using the air mixing part 70, ■ a throat part 59 that determines the spouting direction of the bath water mixed with bubbles spouted from the air mixing part 70 into the bathtub body l, and ■ a jet flow forming part. Squirt forming part of 50! Adjustment valve body 2
2, a motor M1 for opening and closing the valve body for the nozzle that advances and retreats; ■ electrical insulation measures and structure for the bathtub body 1, such as the water leak sensor 23v, and ■ connection to the old motor for opening and closing the valve body for the nozzle, etc. Power supply/
It is constructed by arranging an electrical connection structure for control.

■Also, in order to facilitate inspection and repair, the jet nozzle 2 according to the present embodiment includes the throat section 59, the air mixing section 70, the jet flow forming section 50, and the nozzle valve from the nozzle casing 20 described above. Another feature is that the body opening/closing motor h1 and the electrical connection structure can be integrally removed from the bathtub body.

Hereinafter, the ejection nozzle 2 having the above basic configuration will be explained in Figs.
Each component will be explained with reference to FIG.

(Nozzle casing) As shown in FIG. 6, the nozzle casing 20 is formed from a long cylindrical body disposed horizontally, and has a female threaded portion 20a formed on the inner surface and a flange portion 2 at the end.
0b and the bathtub mounting portion 20c.
An intake pipe connection part 20e (see Fig. 8) which is connected to the rear of the intake pipe connection part 20e and has an air inflow cylinder part 20d on the outer peripheral surface; Part 2
Of is formed at the rearmost part of the bath water bullet feeding pipe connection part 20g (see Fig. 7), and the spout 11 which will be described later! Adjustment valve body 2
2 is provided with a motor mounting part 20h for mounting a motor M1 for opening and closing the valve body for the nozzle which moves forward and backward.

The bathtub body l of the nozzle casing 20 having such a configuration
The mounting structure will be explained below.

In FIG. 6, lh is a ring-shaped puncture fitted around the periphery of the leg side jet nozzle connection port 18.

Reference numeral 11 denotes a nozzle mounting cylinder that extends from the inside to the outside of the bathtub body l by penetrating the spout nozzle connection port 1g to which the ring-shaped packing lh is attached. The inner end is provided with an enlarged diameter flange portion 1j, and the outer peripheral surface of the outer end of the bathtub is provided with a male screw portion 1k.

The nozzle mounting cylinder 1i presses one end surface of the enlarged diameter flange portion 1j against the inner surface of the ring-shaped packing 1h, and connects the male threaded portion 1k to the nozzle casing 20.
It is tightly screwed into a female threaded portion 20a provided on the inner surface of the bathtub attachment portion 20c.

This screwing allows the bathtub attachment part 20c of the nozzle casing 20 to be firmly and watertightly attached to the lower part of the front wall of the bathtub body 1.

Further, the bathtub attachment portion 20c is substantially hidden by a decorative cover 26, which will be described below.

That is, the decorative cover 26 consists of a bathtub-side flange portion 26a having a size that can hide the enlarged diameter flange portion 1j of the nozzle mounting cylinder 11, and a cylindrical portion 26b that penetrates the spout nozzle connection port 1g. A male threaded portion 26c is formed on the outer peripheral surface of the shaped portion 26b.

Then, attach this threaded portion 26c to the nozzle casing 20.
It is removably screwed onto a female threaded portion 2ON formed on the inner circumferential surface of the front end.

Further, the rear end of the decorative cover 26 allows a throat fixing member 25, which will be described later, to be fixed inside the nozzle mounting cylinder 1i.

Next, the configuration of the intake pipe connecting portion 20e provided behind the bathtub attachment portion 20c of the nozzle casing 20 will be described.

As shown in FIGS. 6 and 8, the nozzle casing 20
The large airflow cylinder part 20d protruding from the outer circumferential surface of the airflow cylinder has a female threaded part 20k on its inner surface, and can be threadedly connected to one end of the intake pipe 12a. Note that 20s indicates a large auxiliary airflow cylinder.

Furthermore, as shown in FIGS. 6 and 8, the intake pipe connecting portion 20e has an air inlet 20j formed therein, and through the air inlet 20j, the air is removed by the ejector effect and turbulence. Utilizing the mixing effect, it can be mixed into the jet bath water flowing through an air mixing space 21d formed in the front portion 21g of the valve seat forming cylinder 21, which will be described later.

In addition, in FIGS. 6 and 7, 20g indicates a connecting portion of the hot water forced feeding pipe, and one end of the hot water forced feeding pipe ll is in a watertight state in the bathing water inflow cylinder portion 2Of of the connecting portion 20g. They are detachably connected to each other, and a bath water inlet 20k is formed inside thereof.

With this configuration, the bath water from the bath water bullet conveying pipe 11 passes through the bath water inlet 20k, and passes through the valve seat forming cylinder 2, which will be described later.
The bath water flows into the bath water inflow space 20ρ formed at the rear part of the bath water.

In addition, in the figure, arrow n indicates the inflow direction of bath water.

Next, the valve driving device mounting part 20h provided at the rearmost part of the nozzle casing 20 will be explained.As shown in FIG. The enlarged diameter extension part 20m cooperates with the lid body 2On that is watertightly connected to its rear end, and has a motor housing in which a nozzle valve opening/closing operation motor H8, etc., which will be described later, is hermetically housed. It forms a space 20Q.

(Throat Portion) Next, the specific configuration of the throat portion 59 will be described with reference to FIG. 5.

The throat part 59 is substantially arranged in the front part of the nozzle casing 20, and includes a throat 24 having a jet flow path formed therein, and a throat fixing member 25 that supports the throat 24 in a swing-adjustable manner. , and a throat concave support surface 21a formed on the front portion 21g of the valve seat forming cylinder 21 disposed in the center of the nozzle casing 20.

The throat 24 has a spherical throat base 24n whose outer circumferential surface is supported within the throat concave support surface 21a of the valve seat forming cylinder 21 so as to be swingable in vertical and horizontal directions, and an outer diameter thereof from the throat base 24a. It is formed from a cylindrical throat tip 24b with a reduced diameter, and the throat tip 24b can be manually oscillated in any direction up, down, left, or right about the base 24a.

Moreover, since a certain sliding resistance is provided in advance between the outer peripheral surface of the throat base 24a and the throat concave support surface 21a of the valve seat forming cylinder 21, the throat 24 can be moved to any swing angle position. can be retained.

Further, the throat fixing member 25 is attached to the nozzle casing 20
The decorative cover 26 is held at a predetermined position on the inner peripheral surface of the front portion thereof via the rear end of the decorative cover 26 and the fixing ring 28.

(Air Mixing Unit) Next, the configuration of the air mixing unit 70 will be specifically described with reference to FIGS. 6 and 8.

As described above, the intake pipe connecting portion 20e of the nozzle casing 20 has an air inlet 20j formed therein, as shown in FIGS. 6 and 8.

On the other hand, the central reduced diameter portion 21b of the valve seat forming cylinder 21, which is disposed at a position corresponding to the intake connecting portion 20e, is provided with a plurality of inner air inflow ports 21c, as shown in FIG. .

An annular air communication path 21e is formed between the nozzle casing 20 and the valve seat forming cylinder 21.

With this configuration, air is allowed to flow through the air inlet 20j provided in the nozzle casing 20, the annular air communication path 21e, and the inner air inlet 21c provided in the valve seat forming cylinder 21, due to the ejecting effect and turbulence. Utilizing the mixing effect, it is possible to mix effectively and uniformly from the entire circumference into the jet bath water flowing in the air mixing space 21d formed in the valve seat forming cylinder 21.

Note that m indicates the air inflow direction.

(Jet Formation Section) Next, the configuration of the jet formation section 50 will be specifically described with reference to FIGS. 6 and 7.

As is clear from FIG. 6, the jet flow forming section 50 essentially includes a jet flow forming channel 27 provided at the center of the rear wall 21+ of the valve seat forming cylinder 21 disposed within the nozzle casing 20; A valve seat 21f formed in the jet flow forming flow path 27, and a valve body 22 for controlling the jet flow yA that approaches and separates from the same valve seat 21f to adjust the opening/closing 1 (adjusting the jet flow amount and jet pressure) of the jet flow forming flow path 27.
and a front surface of a motor mounting block 29 that supports the valve body 22 so as to be movable forward and backward toward the valve seat 21f.

First, the configuration of the jet ffi regulating valve body 22 will be explained. As shown in FIG. It is for forming a jet bath in the channel 27,
By advancing and retreating, it is possible to form a jet bath water and also adjust the amount of jet bath water mixed with bubbles that is jetted out from the throat 24 of the jet nozzle 2.

The ejection IT adjustment valve body 22 is firmly connected to the tip of a valve body support rod 23d of a nozzle valve body opening/closing motor M1, which will be described later, via an insert fitting 22a.

Further, the valve body 22 has a conical portion 22b formed on its distal end side, which bulges out while gradually reducing its diameter toward the valve seat 21f.

Such a conical portion 22b can generate a straight, rod-shaped bath water jet flow in the jet flow forming channel 27, and the ratio of jet pressure to jet amount is relatively high, resulting in a spot blow having an acupressure effect. can be easily obtained.

Next, to explain the watertight structure provided around the valve body 22 for adjusting the amount of jet, the tip of a bellows-shaped waterproof cover 22c is integrally connected to the rear part of the valve body 22 for adjusting the amount of jet. The base end of the cover 22c is connected to the motor mounting block 2.
9 through an O-ring 22d.

Further, a cylindrical waterproof cover 22e is provided concentrically around the jet ffi adjustment valve body 22, and the waterproof cover 22e is attached at its base end to the motor mounting block 29, and is attached at its tip. The ejection amount adjusting valve body 22 is slidably supported on the inner circumferential surface of the annular projection 22f.

Further, as shown in FIG. 6, an O-ring 21h is interposed between the inner peripheral surface of the nozzle casing 20 and the outer peripheral surface of the rear wall 21i of the valve seat forming cylinder 21.

Due to the presence of the O-ring 21h, the bath water inflow space 2
From 0p, the bath water enters the air communication path 21e through the gap between the inner peripheral surface of the nozzle casing 20 and the outer peripheral surface of the rear wall 21i of the valve seat forming cylinder 21, and flows into the air communication path 21a.
By forming a water film on the interface between the air inlet 20j and the air inlet 20j, it is possible to reliably prevent the air from flowing into the aeration space 21d.

(Motor for opening/closing the valve body for a nozzle) Next, the configuration of the motor M1 for opening/closing the valve body for the nozzle will be described. The cylindrical motor casing 23 forming the outer shell of the motor h is shown in FIGS. As shown in Figure 9,
It is detachably attached to the rear surface of the motor attachment block 29.

A cylindrical coil 23a is provided in the motor casing 23 concentrically with the nozzle casing 20, a cylindrical magnet 23b is provided in the coil 23a, and by exciting the coil 23a, the magnet 23
b can be rotated in forward and reverse directions.

Also, a cylindrical rotor nut 23 is provided inside the magnet 23b.
(1) are mounted concentrically and integrally, and the rotor nut 23c is rotatably supported by a bearing 23e,
A valve body support rod 23d, which has a valve body 22 for adjusting the jet ffl attached to its tip, is inserted and supported in the rotor nut 23c so as to be slidable forward and backward.

A spiral rotor-side ball groove 23k is formed on the inner circumferential surface of the rotor seat 23c, while a spiral rod-side ball groove is formed on the outer circumferential surface of the valve element support ring 23d in the same direction as the rotor nut-side ball groove 23. 23m, and a plurality of balls 23n are freely interposed between the opposing rotor nut side ball groove 23 and the rod side ball groove 23.

Furthermore, 23g represents the rotational movement of the rotor nut 23c,
In order to convert the valve body support rod 23d into a linear motion,
This is a rotation restriction piece that restricts rotation of the valve body support rod 23d.

In this embodiment, the rotation regulating piece 23g is formed by a ball that is fitted and held by a screw 23ν into a pair of grooves 23x provided at opposing positions 1801 on the rear outer peripheral surface of the valve body support rod 23d. has been done.

With this configuration, when the nozzle valve body opening/closing operation motor M1 is energized based on the drive output from the control unit C, the rotor nut 23c rotates together with the magnet 23b, as shown in FIG. In conjunction with this, the valve body support rod 23d, whose rotation is regulated by the rotation regulating piece 23g, advances and retreats, and the amount of ejection attached to the tip of the valve body support rod 23d increases. By moving the I-section valve body 22 toward and away from the valve seat 21f, the amount and pressure of hot water jetted into the bathtub body 1 can be adjusted.

In the operation of the jet nozzle 2, the amount of opening and closing of the jet flow forming channel 27 corresponds to the amount of movement of the valve body support rod 23d, and the amount of movement of the rod 23d corresponds to the amount of movement of the valve body support rod 23d. It is proportional to the number of times voltage pulses are applied to the nozzle valve opening/closing operation motor M from the fully closed valve position, which is the maximum advanced position of the nozzle.

Therefore, by controlling the drive pulse amount of the nozzle valve body opening/closing operation motor H3 by the control unit 211C,
It is possible to accurately and finely adjust the opening/closing amount of the jet flow forming channel 27, that is, the amount of bath water spouted from the spout nozzle 2, and to finely adjust the amount and jet pressure of the bath water into the bathtub body l. I can do it.

The motor M1 for opening and closing the nozzle valve body may be any motor that can finely adjust the spout volume and spout pressure of the bath water by moving the jet volume regulating valve disc 22 forward and backward in minute steps and steps. In addition, piezoelectric actuators, ultrasonic motors, etc. can also be used.

Further, a valve drive detection sensor S1 is provided at the rear end of the valve body support rod 23d to detect whether or not the nozzle valve body opening/closing operation motor M1 is operating normally.

The sensor S is configured to move the valve body support rod 23d to the reference position (for example,
When the valve body support rod 23d retreats a certain distance from the maximum advanced position (i.e., fully opened v1), a sensor output is output, and based on the sensor output, the control unit C determines whether the nozzle valve body opening/closing operation motor M1 is operating normally. You can check the operation,
Blow operation control including subsequent valve body opening/closing control can be started.

On the other hand, if the above-mentioned valve drive detection sensor S1 does not output an on output even if the operation start switch is turned on, the control unit C
It is determined that an abnormality has occurred in the nozzle valve body opening/closing motor M1, and subsequent various operations are disabled.

Therefore, maintenance of the nozzle valve body opening/closing operation motor H5 becomes easy, and it is also possible to prevent electric leakage accidents to the bathtub body 1, which may occur if a malfunctioning nozzle valve body opening/closing operation motor M1 is operated as is. can be prevented.

Various types of sensors can be used as the valve drive detection sensor S1, but in this embodiment, a Hall element 23i attached via a bracket 23z to the inner surface of the cover plate-cum-substrate 23Q forming the rear wall of the motor casing 23 is used. and,
Valve body support rod 23d facing the Hall element 231
It consists of a magnet piece 23j attached to the rear end position.

(Electrical insulation measures and structure for the bathtub main body such as water leak sensor) Furthermore, in this embodiment, as an electrical insulation measure to reliably prevent electrical leakage from the jet nozzle 2 to the bathtub main body l, The following means or structures are adopted.

First, as shown in FIGS. 6, 7, and 10, the motor casing 23 of the nozzle valve opening/closing motor i.
A water leak sensor 23ν is attached to the outer surface of the lid body/substrate 23q provided at the rear of the lid body.

In this way, even if water should enter the motor housing space 20Q that houses the motor h for opening and closing the nozzle valve body, the water leak sensor 23ν will immediately detect this and stop the blowing operation. , and all jet nozzles 2:2.3
．． In addition to stopping the operation of 3.4.4, nozzle abnormality No. 13 can be output to the hill production panel section 6 side.

That is, due to the presence of the water leak sensor 23v, it is possible to prevent personal injury caused by electrical leakage from the nozzle valve opening/closing motor H1 to the bathtub body 1.

Furthermore, in this embodiment, in view of the importance of the water leak sensor 23v in preventing personal accidents, in order to ensure the reliability of the operation of the water leak sensor 23b, the sensor code i to the water leak sensor 23b is If a short circuit or disconnection occurs due to environmental or mechanical causes, stop blowing operation and close all jet nozzles 2.2.3.3.4.4 in the same way as when detecting a water leak. It is controlled to return to the fully closed position.

Further, as shown in Fig. 1θ and Fig. 11, the motor casing 23 of the motor H1 for opening/closing the valve body for the nozzle has a conductive gold layer made of chrome plating on the front and back surfaces of the resin material 83, that is, on both sides. A coating 80 is formed, and the metal coating 11980 is connected to the ground terminal 81 of the ground cord II connected to the lid base 4 & 23q.

Therefore, in the unlikely event that a portion of the bath water in the bath water inflow space due to deterioration of the backing etc.
Even if it gets into the morph casing 23 → earth cord h
Connect it to the ground cord h of another jet nozzle through
Earth leakage current can be grounded, and leakage to the bathtub body can be reliably prevented, thereby reliably preventing personal accidents.

Further, as shown in FIG. 6, a pair of O-rings 29a and 29b are provided with an interval in the axial direction between the outer circumferential surface of the motor mounting block 29 and the inner circumferential surface of the nozzle casing 20.
is interposed.

The O-rings 29a, 29b can reliably prevent bath water from entering the motor storage space 20Q from the bath water inflow space 20ρ.

In addition, in the configuration of the jet nozzle 2 shown in FIG. 6, a decorative cover 26, a nozzle mounting cylinder 1i for attaching the decorative cover 26, and a motor M1 for opening and closing the valve body for the nozzle.
Except for all other components of the jet nozzle 2, i.e., the nozzle casing 20. Valve seat forming cylinder 21. The motor mounting block 29 and the like are made of a non-metallic material, preferably a highly insulating synthetic resin.

Therefore, from this point of view as well, it is possible to reliably prevent electrical leakage from the motor for opening and closing the nozzle valve body to the bathtub body l.

In this embodiment, the throat 24, decorative cover 26, etc.
It is made of metal, with emphasis on the IR volume that metal has.

Furthermore, as shown in FIG. 3, the other end of the cord protection cable 23s, which has an air conduction tube 23t1 inside, is connected to the inside of the functional unit 9, where the humidity is kept low by the built-in motor cooling fan. It is connected to the control 19flC and power supply.

Therefore, since the humidity inside the functional unit 9 is kept low by the built-in motor cooling fan, the air conduction pipe 2
3s-1, the humidity in the motor storage space 2Oq is also kept low, and the electrical insulation of the jet nozzle 2 can be improved from this point of view as well.

(Electrical connection structure for power supply and control to the nozzle valve body opening/closing motor, etc.) As shown in Figures 6 and 9, the electrical connection structure for power supply and control to the nozzle valve body opening/closing motor M1, etc. Electrical connection is substantially performed by the edge connector 23p, the cover board/substrate 23Q, the bendable flat cable 23r folded multiple times, and the cord protection cable 233 having a multicore structure.

As shown in FIG. 9, the edge connector 23p has a socket 23 connected to a cover board 23q and a plug 23u which is removably inserted into a socket 23t.
One end of the plug 23u is connected to a coil 23a of a motor M1 for opening and closing the nozzle valve body.

Further, as shown in FIGS. 9 and 10, a power supply cord and a control cord, a total of nine cords aJ1c1d+Lf+g+lIt+, are connected to the cover board 23Q.

Among these cords, four power supply cords a, b,
c and d are for the drive circuit, and three control codes e+Lg
is for the valve drive detection sensor S1, one ground cord h is for the conductive metal coating 80, and one control cord i is for the water leak sensor 23v.

Further, as shown in FIGS. 6 and 13, the bendable flat cable 23r folded multiple times is
Book code a, b + C+ d + e + f
+ g + h + ' are joined in a flat plate shape,
As will be described later, when the motor M1 for opening and closing the nozzle valve body is taken out from the nozzle casing 20, it is extended in an accordion style to facilitate taking out the motor.

Further, the flat cable 23r has a polyester film 23r-1 attached to at least one side surface thereof, thereby reliably preventing twisting of the flat cable 23r during expansion and contraction.

Note that the electrical connection structure for power supply and control of the nozzle valve body opening/closing operation motor M1 and the like described above is provided in a motor housing formed at the rear of the nozzle casing 20, similar to the nozzle valve body opening/closing operation motor M1. It is housed in the space 20Q in a watertight manner.

Next, the configuration of the cord protection cable 23s having a multicore structure will be described.

As shown in FIGS. 6 and 12, the cord protection cable 233 to the jet nozzle 2 has the aforementioned nine power supply/control cords a+b+c+d+e inside.
+f +g are arranged radially or annularly.

Further, the cord protection cable 23g is preferably provided with an air conduction tube 23S-1 made of a polypden tube at its center.

One end of the cord protection cable 23s is connected to a control section C disposed within the functional section unit 9, a power source, etc.

Therefore, the motor storage space 20Q and the space inside the functional unit 9 are communicated with each other through the air conduit 23s-1, and as will be described later, the nozzle valve element is operated to open and close from the nozzle casing 23. motor 1 etc. can be easily taken out.

Further, the cord protection cable 23s is surrounded by a stainless steel protection spring 23s-2 on its outer peripheral surface, and the protection spring 23g-2 prevents the cord protection cable 23s from being damaged by mice or the like. can.

(Structure for integral removal of components inside the nozzle casing from the bathtub body side) In this embodiment, inspection and repair of the jet nozzle 2, especially the motor 1 for opening and closing the valve body for the nozzle, can be easily carried out. Therefore, from the nozzle casing 20, the throat portion 5
9 and an air mixing section 70.

a jet flow forming section 50, a motor h for opening and closing the valve body for the nozzle,
and the electrical connection structure can be integrally removed from the bathtub body l side.

That is, as is clear from FIG. 6, the nozzle casing 20 is divided into four stages from the bathtub body 1 side to the nozzle well body opening/closing operation moke M side, and its inner diameters D+, Di
, Di, rJa, and Os are gradually decreased.

Then, a motor mounting block 29 with the minimum outer diameter, which has the nozzle valve body opening/closing motor M1 attached thereto, is installed at the fourth inner diameter D4, and a valve seat with an intermediate outer diameter is formed at the third inner diameter. The rear wall 21i of the cylindrical body 21 is installed, and the second inner diameter D! The front portion 21g of the valve seat forming cylinder 21 having the maximum outer diameter and the throat fixing member 25 are installed at the location.

Therefore, first, the decorative cover 26 can be easily attached to the nozzle mounting cylinder 1 by rotating it in the loosening direction using a wrench or the like.
1, by pulling the throat 24, the fixing ring 2B and the throat fixing member 2 are inserted into the bathtub body l.
5 can be removed from the nozzle casing 20.

Thereafter, as shown in FIG. 6a, insert your finger into the inner air inlet 21c of the valve seat forming cylinder 21, and connect the cylinder 21, the jet J [the joint valve body 22, the motor mounting block 29, and the nozzle valve]. The body opening/closing motor M1 can be removed integrally from the nozzle casing 20.

In the above configuration, since the motor storage space 20Q located at the rear of the nozzle casing 20 retains its paddy-like nature, if it is left as it is, the bathtub body of the motor mounting block 29 to which the motor M1 for opening/closing the nozzle valve body is attached will be removed. l
Removal to the side is difficult because negative pressure is generated within the motor storage space 20q.

However, in this embodiment, as described above, even if the inside of the motor storage space 20Q is maintained in a watertight state, there is no chance of taking out the valve body advancing/retracting motor H4 from the nozzle casing 20 into the bathtub body l. , air cord protection cable 23
Since the air flows into the motor storage space 20Q of the nozzle casing 20 through the air conduction pipe 23g-2 provided in The opening/closing motor M1 can be easily removed.

Similarly, the nozzle valve body opening/closing motor h1 is connected to the cord protection cable 23g via the multi-folded flat cable 23r, so by expanding and contracting the flat cable 23r in an accordion style, The nozzle valve body opening/closing operation motor 1 can be easily removed from and attached to the nozzle casing 2o.

In this way, inspection and repair work of the motor L for opening and closing the nozzle valve body can be performed easily and reliably.

In addition, after the inspection and repair work is completed, the jet nozzle 2 can be easily assembled by following the above-mentioned procedure in reverse.

On the other hand, since the watertightness of the nozzle casing 20 is sufficiently ensured, the safety of the bather inside the bathtub body 1 can also be sufficiently ensured.

The foot side jet nozzle 2.2 has been described above, but the dorsal and ventral other jet nozzles 3.3.4.4 are also configured in the same manner as the jet nozzle 2.2, and are equipped with water leak sensors. 2
Due to the presence of 3V, the motor M for opening and closing the valve body for the nozzle
1 to the bathtub body 1 can be prevented.

[Ejection nozzle drive control method]

Hereinafter, a driving control method for the jet nozzles 2.2.3, 3, and 4.4 having the above configuration, which constitutes the gist of the present invention, will be explained.

('TL source large input timing operation) First, the jet nozzles 2, 2.3, 3.4.4 when the power is turned on.
The initial operation will be explained.

Here, when the power is turned on refers to when the plug is connected to an AC TLm outlet, and normally, after the bubble generating bathtub A is shipped from the factory and installed in a home or hotel, the plug is not removed. Since there are many cases, this is essentially the time when such a bubble-generating bathtub A is installed.

The initial operation will be specifically described below with reference to the flowchart shown in FIG.

First, when the plug is connected to the outlet and the power is turned on (211), each jet nozzle 2, 2, 3, 3°4.
When the valve drive detection sensor Sl in 4 is turned on (normally, the jet nozzles 2.2.3 and 3.4.4 are set to the open position at the factory) (212Y), the high voltage is applied as described later. Ejection nozzle 2 in A operation with low speed and high torque.
．． 2.3.3.4.4 is driven in the valve closing direction (213)
.

As a result, oil and the like stuck to the spout amount regulating valve body 22 and the like when the bubble generating bathtub A is shipped from the factory is peeled off, thereby ensuring normal operation of the spout nozzles 2, 2, 3, 3, and 4.4 thereafter. be able to.

Next, as a result of driving in the valve closing direction in A operation for a predetermined time (for example, 2.9 seconds), the valve drive detection sensor S1 turns OFF.
(215V), the jet nozzles 2, 2.3 are operated at low voltage and high speed with a small torque ΦB as described later.
．． 3.4.4 is driven in the valve closing direction 216) to cause step-out.

Therefore, the valve body 22 for adjusting the ejection amount can be softly brought into contact with the valve seat 21f, and damage to the valve body 22 for adjusting the ejection ffi and the valve seat 21f can be prevented.

In addition, after the step-out, by applying a voltage of a predetermined number of pulses to the nozzle valve body opening/closing operation motor M, the jet nozzles 2.2, 3, 3, and 4.4 are driven in the valve opening direction and fully opened. Position (spout amount! IJ node valve body 22 is 6 m+ from the valve seat 21f)
(217)
.

Then, when the valve drive detection sensor S detects that the jet nozzles 2, 2, 3, 3, 4, 4 have reached the fully open position and outputs ON (218F), the power-on initial operation is completed. .

Next, by pressing the operation switch, an initial operation at the time of turning on the operation switch, which will be described later, is performed.

On the other hand, in the initial υJ operation when the power is turned on, the valve drive detection sensor S in each jet nozzle 2.2, 3.3.4.4 is not properly maintained at the time of factory shipment of the bubble generating bathtub A. If the current position of the jet nozzle 2.2゜3.3.4.4 is unknown (212N), the high-voltage, low-speed, high-torque Ai! I! The injection nozzles 2.2, 3, 3.4.4 are driven in the valve closing direction for a very short time (214).

By doing this, as much as possible, the oil and the like stuck to the jet 'Wi regulating valve body 22 etc. when the bubble generating bathtub A was shipped from the factory is peeled off, and the subsequent jet nozzles 2, 2, 3, 3.4
．． 4 can be ensured, and it is also possible to prevent the valve body 22 and the valve seat 21f from being damaged by tR due to inadvertent contact of the valve body 22 with the valve seat 21f with a strong torque. .

Then, the process moves to step (216) and the subsequent power-on initial operation is completed (21?) (21B)
.

In addition, if any of the valve drive detection sensors S1 is not ONL in the above steps (215) (21B), the motor for opening and closing the valve body of the jet nozzle 2.2.3.3.4.4 It is determined that there is an abnormality in motor 1, and the operation of the motor 1 is stopped.

In this way, during the initial operation when the power is turned on, it is possible to reliably detect abnormalities in the jet nozzles 2, 2, 3, 3, 4, 4, thereby increasing the reliability and safety of subsequent blowing operations. can be guaranteed in advance.

In addition, when the power is turned on as described above, the jet nozzles 2, 2,
For example, the basic operations of 3.3.4.4 are as follows:
Various driving modes can be set.

A operation---10Vf1. OV 50pps (1,25m-8) B operation...TV-IJ, 5V 200pps (5mm/s) C operation...lOV+1. o V 150pps (3.75mm/s) (Initial operation when the operation switch is 08) This initial operation when the operation switch is 08 is when the switch for bubble generation is turned on at the beginning of operation of the bubble generation bathtub. Sudden strong jet flow from jet nozzles 2.2.3, 3.4.
If the jet is ejected due to 4, accidents such as children and elderly people falling inside the bathtub body are likely to occur, so no matter what form of jet flow, it will not affect children or elderly people at the initial stage when the operation switch is turned on. This is a mild operation (weak jet flow), and the initial operation at operation switch 08 refers to the initial operation for the safety of the bather.

Based on the flowchart shown in FIG. 15 and the time chart shown in FIG. , the operations in this flowchart are common and apply to the operations of each nozzle).

First, when the operation switch is turned on (311), the jet nozzles 2.2, 3, 3.4.4 are operated for a time t in the B operation mode.

(for example, 1.6 m) in the closing direction, and
2 comes into contact with the valve seat 21f and steps out (312
).

After that, when time h (for example, 0.2 seconds) has elapsed, (3
13) , Now, in the B operation mode, the time [, (for example, 1
．． 2 seconds), the jet nozzles 2, 2, 3.3, 4.4 move in the opening direction and stop at the fully open position (314)
.

When the jet nozzles 2, 2.3, 3.4.4 move to the fully open position and the valve drive detection sensor Sl turns on (315
), the initial operation is completed.

After that, mild blow operation starts.

However, if the valve drive detection sensor S is ONI (315N), it is determined that the nozzle valve opening/closing operation motor M is abnormal and the morph is stopped (316).

In this way, even during the initial operation when the operation is switched on, abnormalities in the jet nozzles 2, 2, 3, 3, 4, 4 can be reliably detected, ensuring reliability and safety of blow operation in advance. be able to.

(Speed control 2I of the jet nozzle when the blow mode changes in the blow operation) Furthermore, in the present invention, when the blow operation changes from one blow mode to another blow mode, the 16th
As shown in the figure, the rotational speed of the motor M1 for opening/closing the valve bodies of the jet nozzles 2, 2, 3.3, 4.4 starts changing at the same time as the rotational speed of the drive circulation pump P.
) , the flow cheat also changes the speed according to the following operation mode.

Therefore, the transition between blow modes can be made smooth, and the feeling of bathing is less likely to be affected.

D operation--10V+1. O.V. 63pps (1,575mm8)

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the overall configuration of the bubble generating bathtub according to the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a side view showing the state of connection between the jet nozzle and the functional unit by piping and a cord protection cable. Figure 4 is a block diagram showing the conceptual configuration of the bubble generating bathtub, Figure 5 is an explanatory diagram showing the air suction structure to the jet nozzle, Figure 6 is an enlarged sectional view of the jet nozzle, and Figure 6a is the jet nozzle. An explanatory diagram of removal work inside the nozzle, Fig. 7 is a side view of the jet nozzle, Fig. 8 is a cross-sectional view taken along line 1-1 in Fig. 6, and Fig. 9 is an enlarged cross-section of the motor for opening and closing the valve body for the nozzle. Figure 10 is a front view of the motor casing, Figure 11 is a sectional view taken along line FIG. 14 is a flowchart of the initial operation when the power is turned on, FIG. 15 is a flowchart of the initial operation when the operation switch is turned on, and FIG. 16 is a timing chart of the initial operation. In the figure, A: Bubble generation bathtub,: Nozzle valve body opening/closing motor P: W1 ring pump Sl: Valve drive detection sensor I: Bathtub body 2.2.3, 3.4, 4: Spout nozzle 10 : Bath water suction flow path Bath water forced flow flow path Nozzle casing Cylindrical body for forming valve seat Spout amount 1il standard valve body

Claims (1)

[Claims] 1. A bath water circulation flow path consisting of a bath water suction flow path and a bath water forced flow path is interposed between the bathtub body and a circulation pump installed outside the bathtub body. Then, the end of the forced bath water flow path is opened into the bathtub body to form a jet nozzle, and an air intake part is connected in communication with the forced bath water flow path, so that bath water mixed with air bubbles is discharged from the jet nozzle. In a bubble-generating bathtub configured to be able to eject water into the bathtub body, the ejection nozzle is an automatically variable ejection amount nozzle, and the automatically variable ejection amount nozzle is provided with a sensor for detecting valve drive, and the control section has the following features. 1. A bubble generating bathtub having a nozzle initial drive program when power is turned on, characterized by comprising a jet nozzle initial drive program. ``When the power is turned on, the motor for opening and closing the valve body of the jet nozzle is rotated with high torque in the valve closing direction, and then rotated with low torque in the valve closing direction to move the valve body to the fully closed position. The valve body is then moved back to the set open position using normal torque, and the valve drive detection sensor is constantly used to detect abnormalities in the automatically variable jet nozzle while the initial drive program is running. Detects the presence of the valve, and if there is an abnormality, stops driving the motor that opens and closes the nozzle valve body.