JPH0321245A - Control device of bubble generating bath tub - Google Patents

Abstract

PURPOSE:To prevent a bathing person from receiving an electric shock by providing a valve element on a blowing nozzle, controlling the opening of the valve element by an electrically driven actuator, and inhibiting the position detecting operation of a valve element position sensor when the valve element is operated. CONSTITUTION:Blowing nozzles 5, 6, 7 have the same constitution. The foot side blowing nozzle 5 comprises a nozzle main body 70 fitted in the side wall of a bath tub main body 1, a valve seat 71, a valve element 72, a nozzle motor M1 as an actuator for controlling the opening of the valve element 72, and an oscillating throat 73. If the drive of the nozzle motor M1 and the valve element position detection of a valve element position sensor 75 are simultaneously performed, both are connected through a control device C, so that there is the fear that a bathing person receives an electric shock. Accordingly, the drive of the nozzle motor M1 and the valve element position detection of the valve element position sensor is will not be performed at the same time. When the valve element position sensor 75 detects the position of the valve element, the nozzle motor M1 is not driven, so that it is possible to prevent an error in detection due to radiation noise caused by a driving current of the nozzle motor M1.

Description

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

(Explanation) 1; Era's technology Conventionally, a bath water suction channel and a bath water forced flow channel were interposed between the bathtub body and a bath water circulation pump installed outside the bathtub body. An outflow nozzle installed at the end of the bath water forced flow channel is opened in the bathtub body, and an empty air extractor part is connected to the bath water forced flow channel to remove air bubbles from the bath water. There is a bubble bath 1a configured to squirt water into the body of the bath.

Recently, a valve body has been installed in the above-mentioned outflow nozzle, and the opening degree of the valve body can be adjusted by electrical means to adjust the strength of the bath jet. Some bathtubs are equipped with a sensor for detecting the temperature, for example, a valve body position sensor made of a magnetic Hall element, and are used to control the strength of the bath water discharge.

(c) Problems to be Solved by the Invention However, if the insulation is impaired due to water intrusion, etc., and the actuator and the valve body 1 upright sensor are electrically connected, especially to the bath water, the gap between the actuator and the valve body position sensor becomes There was a risk that an electric current would flow through the bathtub, giving the bather an electric shock.

(2) In the present invention, a thousand steps to solve the problem, a bath water suction channel and a bath water forced flow channel are provided between the bathtub body and a bath water circulation bomb installed outside the bathtub body. A spouting nozzle provided at the end of the spout nozzle is opened into the bathtub body, and an air intake part is connected and submerged in the bathwater forced flow path to spout out air-filled bathwater into the bathtub body. The jet nozzle is configured to have a valve body, the opening degree of the valve body can be adjusted by an actuator driven electrically, and the valve body position is such that the opening degree is detected by electrical means. In a bubble generating bathtub equipped with a sensor, when the valve body is not operated, the position detection operation of the valve body position sensor is not performed.If! ? 51 and is intended to provide a control device for a bubble bathtub.

(E) Functions and Effects According to the present invention, even if the actuator and the valve body position sensor are electrically connected to the bath at the same time, the position of the valve body position sensor will not change while the actuator is being driven. Since no operation is performed, no voltage is applied to the sensor, and therefore no potential difference is generated between the actuator and the valve body position sensor, preventing electric shock to the bather. 11- It is possible.

(F) Example An example of the present invention will be explained based on the drawings. In Figs. The bathtub (A) has a bathtub body (1) and a bathtub circulation pump (2) installed outside the bathtub body (0), and a bathtub suction channel (3) and a bathtub drain forced flow channel (2). 4), and the terminal part of the bath water forced flow channel (4) is connected to 6
There are foot side, dorsal side, and ventral side spout nozzles (5) at each end of the forcible bath water flow channel (4), which is branched into
(6) (6), (7) (7) are connected, and the same foot side, dorsal side, and ventral side outflow nozzles (5) (5) (6) (6) (
7) Through (7), the bath water forced flow channel (4) is connected to the bath water body (1
〉 is opened into the inside of the bathtub, and an air trapper part (8〉) is connected to the bathwater forced flow channel (4) to send the bathwater mixed with air bubbles into the bathtub camellia wood body (1). It's all over the place.

In addition, a rim (9) of a predetermined width is formed around the periphery of the bathtub body (1), an air intake part (8) is formed on the rim (9), and a small panel part (14) is placed on the top of the rim (9). has been established.

In addition, a pump protection case (lO
), and houses the Wi-ring pump (2), the filter (1l), the control device (C), the inverter (l3), and these accessory devices inside.

As shown in Figure 3, the Shaoan Bonp (2)
21〉 and the pump part (22〉), and the motor part (21〉) is a 3 } 11 5M conductor motor, and a field (24〉) is arranged in the motor casing (23). Then, wind the coil II (25) around the same field magnet (24), and
) and apply an alternating voltage to generate a rotating magnetic field.
Motor gating (23〉 inside Ura type rotation J' (2B)
is supported through the output shaft (27), and the quadrupling speed of the output shaft (27) can be adjusted by changing the quadrupling speed of the Iiif rotating magnetic field using an inverter (13), which will be described later. There is.

The pump part (22) is located inside the pump casing (28),
An upper stage impeller chamber (29) that communicates with the bath water suction channel (3) and the filter (II), and an f-stage that communicates with the bath water suction channel (3) and the bath water forced flow channel (4). One impeller room (30) and two tiers, one lower impeller room (29) (80
) inside the upper and lower invera (31) (82) respectively.
is disposed in the 1111 motor 1''1 (1:) and is interlocked and connected to the output shaft (27).

In addition, as shown in the figure, an anti-green plate (33) made of resin is interposed between the motor casing (23) and the voluptuous casing (28), and the motor is connected to the motor via the field (24). It prevents the high frequency current leaking into the casing (23) from leaking into the bathing area via the pump casing (28), and also provides electrical insulation for the upper and lower impellers (31) and (32). The synthetic resin cable 44 is integrally constructed, and the central shaft (34) of the impeller (31) (32) is extended upward, and an output shaft hole (35) is formed at the upper end of the coaxial shaft (34>). The output shaft (27) of the motor section (21) is drilled in the same hole (35).
) is fixed in place, and the upper part of the casing (28〉) and the center part (
A mechanical seal (36) is interposed between the pump part (22) and the motor part (21. ) and are electrically insulated.

The inverter (13) is, as shown in FIGS. 4 and 5,
Commercial m source (37) h. 1 run 11 strokes 1 AC 1-0 0
V is converted into DC 2 by rectifying 4-path (38〉) and smoothing 4-path (P)
The switching circuit (39) is controlled by the control device (C) via the inverter control circuit (12), and the voltage of the inverter (13) is converted to 0 0 V and supplied to the switching circuit (39). The output frequency can be changed to (T:@.

Therefore, under the control from the control device (C), tM
By changing the rotation speed of the m pump (2), the discharge pressure and discharge member of the same pump (2) can be changed.

In addition, by PWM controlling the output waveform of the inverter, the average value of the output waveform is approximated to a string waveform,
The rotation of the motor section (21) is made IT+smooth.

The three sentry nozzles (5), (6), and (7) have the same configuration. Taking the leg side outgoing nozzle (5) as an example, refer to Fig. 6.
+. <(L will explain.

The jl side outgoing nozzle (5) consists of a cylindrical nozzle body (70) fitted on the side of the bathtub body (1), and seven nozzles (70).
The valve seat (71) provided in the valve seat (70), the valve body (72> provided at the rear nozzle J of the valve seat (7l), and the valve F body (72>) are moved forward and backward, and the valve body (72) as an actuator for adjusting the opening degree of the valve seat <72);
1) is configured with an i-shaped throat (73) provided in front of the throat.

The nozzle body (70) has a bath water forced flow channel (4) at the rear thereof.
), and the valve body (72) is brought into contact with and separated from the valve seat (71) to adjust the amount and pressure of the bath from the nozzle (5) to J1! At the same time, an air intake part (I1
) is opened ``1'' so that the ejector effect of the bath water that has passed through the valve seat (71) causes air to be mixed into the bathtub body (1) which is blown out into the bathtub body (1). It consists of

The nozzle motor (Ml) consists of a stepping motor f-j attached to the rear wall of the nozzle body (70), and a ball screw that converts the motor's synchronous motion into linear motion and transmits it to the valve body (72). It consists of 1i1J, which will be described later.
It is driven by a pulsed control voltage output from the control W position (C), and the nozzle motor (old) is moved forward by the number of pulses of the control voltage.

Further, a valve body position sensor (75>) for detecting the position of the valve rest (72>) is disposed at the rear end of the nozzle motor 011).

As shown in FIG. 7, the valve body position sensor (75> is connected to a permanent magnet (75a) by making the rear end of the stem (72a) of the valve body (72) protrude rearward from the rear end of the nozzle motor (old). is attached, and a magnetic hole element-r is attached to the same permanent magnet (75a).
(75b) is installed, a constant voltage is applied to the magnetic Hall element (75b), and f is applied to the movement of the permanent magnet (75a).
Due to the change in the magnetic flux density of 1C, the magnetic hole element r(75
The output voltage of b) is changed, this output is input to the differential I1t amplifier (75c), and the output of the differential amplifier (75c) is sent to the control device from the output terminal (75e) via the comparator (75 (!)). It is configured to output to (C).

In addition, the magnetic Hall element 'J' (75b) requires the application of voltage when the magnetic flux density increases.
Power is also required to operate the differential amplifier aH75c) and comparator (75d) M attached to (75b).

As shown in Figure 8, the control device (C) includes a microprocessor (old) l) and a human output interface (1) (0
) and a memory <1> storing a control program, and the human power interface (1) has a temperature sensor (1) and a pressure sensor (p ), you can turn ON and OFF the air bubble bathing bath (A) installed in the ti-made panel section (l4), you can adjust the intensity of the bath water jet from the 3 nozzles, and you can also control the bath water. It is connected to each type of switch (50) (50) that specifies the spouting form and the nozzle from which the bath water is ejected, and these sensors (L) (p) and switches Each jet nozzle (5) (5) (6) is operated by human power from the group.
<6) (7) The opening/closing degree of (7) and the circulation bomb (2>
By controlling the number of rotations, etc., various types of bath water can be ejected.

However, in the above fill bM, if the insulation of the nozzle motor (old) and valve body position sensor <75> is impaired and both are connected to the bath water at the same time, the control system IE (
C)→Nozzle motor (old)→Bath water→Human body→Bath dryness→Valve body position sensor (75)→1; A path for M leakage current is formed in the reverse order of control device (C) or top. Become.

In this state, when the twist motor (Ml) is driven and the valve position sensor (75) detects the position of the valve body at the same time, the two are connected via the control device (C), and the current flowing between them causes the bathing to take place. Persons may receive electric shock.

Therefore, in this embodiment, the drive of the nozzle motor (Ml) and the detection of the valve body position by the valve body position sensor (75) are not performed at the same time.

That is, as shown in FIG. 8, the control device! (C) and
Reciprocating path (old) (d2), (ds) connected to the nozzle motor (Hl) of each jet nozzle (5) (6) (7)...
(d4) has independent contact points (Rl
), a power line (015) connected to the J valve body position sensor (75), a signal line (dB), and a ground line (d
7) A relay (R2) having a contact point corresponding to each line ((15) (dls> (d7)) is interposed, and when each relay (Rl) (R2) is turned OFF, the control device i!
It is designed to be completely insulated from (C).

Then, the control device (C) controls each relay (Rl) (R2), and each relay (old) (R2), nozzle motor (
The valve body position sensor (75) and valve body position sensor (75) are controlled as shown in the time chart of FIG.

In the figure, (vl) is the drive voltage to the relay (Rl) connected to the nozzle motor (old), and (v2> is the valve body position sensor {
Drive voltage to relay (R2) connected to 75〉, (v8
)(v4) is the drive voltage to the nozzle motor (Ml), (″
v5) is the drive voltage to the valve rest position sensor (75), <<v6
) indicates the output voltage of the valve body position sensor <<75>>, and (v7) indicates the connection state between the ground line (d7> and n: control position (C)).

As shown in the figure, by not outputting the drive voltage (rl) (r2) to each relay (Rl) (R2) at the same time, the nozzle motor (old) or valve body position sensor (75
) is connected to the control device (C) only when operating the nozzle motor (M1), but the reciprocating path (old) (d
2) and the 3-axis (d6) connected to the valve body position sensor (75).
) (dll)017) are not ONL at the same time.

Therefore, even if the nozzle motor (Ml) and the valve body position sensor (75) are simultaneously connected to the bath, either one of the leakage current paths is connected to the relay (1?1) or (1?2).
), it is completely insulated from the control device Wt(C), so no potential difference occurs between 1!4l of the two, and electric shock can be prevented.

In addition, the valve body position sensor (75) detects the valve body position because it does not drive the nozzle motor (Ml).
Erroneous detection due to discharge noise caused by the drive current of the nozzle motor (Ml) can be prevented.

In addition, the 11th panel section (l4) is equipped with an infrared receiver f3 section (17) at one end, and a remote controller (18).
) to receive control signals from.

The remote controller <I6> has an operation panel section <<1>
Various switches arranged in 4>(5G> (50)...
A group of switches corresponding to the switch group is arranged, and the infrared signal set for each switch is transmitted from the infrared light section 41 (15), and the same infrared signal is sent to the operation panel section (15). The infrared receiving unit (17) of the control device (C) receives the control information from the bath table by inputting it manually to the input interface (1) of the control device (C), and the control information of the bath corresponding to each of the above-mentioned switches is received. It is configured to take the form of a jet.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a bubble-generating bathtub using a control device according to the present invention, FIG. 2 is an explanatory diagram showing the structure of the bathtub, and FIG.
The figure is a longitudinal sectional view of the circulation bomb, Figure 4 is a block diagram showing the configuration of the inverter, Figure t55 is a switching circuit diagram, Figure 6 is a ltli side view of the bath outlet nozzle, Figure 7 is the configuration of the valve body position sensor. FIG. 8 is a block diagram showing the configuration of the control device, and FIG. 9 is an operation time chart of the nozzle motor and the valve body position sensor. t Foaming cow bath 1θ Bath 1a Main body circulation pump Bath water suction flow path Bath water supply flow path Star side jet nozzle Back side jet nozzle Leg side jet nozzle Air intake part Motor part Valve body Valve body position sensor Patent factory Osamu Hitoyo Kenichiro Matsuo Jinto Toki Co., Ltd. Figure 4 Figure 5 Figure 7 Figure d7 Figure 9

Claims (1)

[Claims] 1) A bath suction channel (3) is provided between the bathtub body (1) and a bath circulation pump (2) installed outside the bathtub body (1).
) and a bath water forced flow path (4), and the jet nozzles (5), (6)... provided at the ends thereof are opened into the bathtub body (1), and the bath water is forcedly fed. Air intake part (
8) are connected to connect the bathtub with air bubbles to the bathtub body (1).
) and configured to eject into the ejection nozzle (5) (6).
... is provided with a valve body (72), the opening degree of the valve body (72) can be adjusted by an electrically driven actuator, and the valve body position is such that the opening degree is detected by electrical means. The bubble generating bathtub (A) equipped with a sensor (75) is characterized in that when the valve body (72) is operated, the position detection operation of the valve body position sensor (75) is not performed. A control device for a bubble-generating bathtub.