JPH034862A - Hot water for bathing circulating pump driving circuit for bubble generating bathtub - Google Patents

Hot water for bathing circulating pump driving circuit for bubble generating bathtub

Info

Publication number
JPH034862A
JPH034862A JP1140147A JP14014789A JPH034862A JP H034862 A JPH034862 A JP H034862A JP 1140147 A JP1140147 A JP 1140147A JP 14014789 A JP14014789 A JP 14014789A JP H034862 A JPH034862 A JP H034862A
Authority
JP
Japan
Prior art keywords
high frequency
inverter
bath water
filter
bathtub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1140147A
Other languages
Japanese (ja)
Other versions
JP2890480B2 (en
Inventor
Hisato Haraga
久人 原賀
Yasutoshi Inatomi
康利 稲富
Takashi Obata
小畑 隆志
Mitsuaki Hashida
橋田 光明
Koichi Uchiyama
浩一 内山
Kenji Moriyama
謙治 森山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toto Ltd
Original Assignee
Toto Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toto Ltd filed Critical Toto Ltd
Priority to JP1140147A priority Critical patent/JP2890480B2/en
Publication of JPH034862A publication Critical patent/JPH034862A/en
Application granted granted Critical
Publication of JP2890480B2 publication Critical patent/JP2890480B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Bathtub Accessories (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent a bathing person from getting an electric shock by interrupting the route of a leaking high frequency current by a filter even when a motor part, etc., is not completely grounded by providing the filter to block the high frequency current on the output part of an inverter. CONSTITUTION:Filters 43 are respectively interposed between an inverter 13 and the coil 25 of a motor part 21 and the high frequency current is made hardly flow. For the filter 43, a coil 45 is wound around a toroidal core 44, for which sintering ferrite is used as a main material, and a high frequency is improved. Especially, by using the toroidal core 44, efficiency for forming a magnetic circuit is improved and further, there is no leakage of magnetic flux to cause noise. By interposing such a filter 43 in the middle of a lead wire from the inverter 13 to the motor part 21, the high frequency component in the output of the inverter 13 is attenuated and only the slight high frequency current leaks in hot water for bathing. Then the accident of the electric shock can be prevented.

Description

【発明の詳細な説明】 、、(イ) 産業上の利用分野 本発明は気泡発生浴槽の浴湯循環ポンプ駆動回路に関す
る。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bath water circulation pump drive circuit for a bubble-generating bathtub.

(ロ) 従来の技術 従来、浴槽本体と同浴槽本体の外部に設置した浴湯の循
環ポンプとの間に、浴湯吸込流路と浴湯強送流路を介設
し、浴湯強送流路の終端を浴槽本体内に開口すると共に
、同浴湯強送流路に空気取入部を連通連設して、気泡混
じりの、浴湯を浴槽本体内に噴出すべく構成した気泡発
生浴槽がある。
(b) Conventional technology In the past, a bath water suction channel and a forced bath water flow channel were interposed between the bathtub body and a bath water circulation pump installed outside the bathtub body. A bubble-generating bathtub configured to open the end of a flow path into the bathtub body and to connect an air intake part to the bathwater forced flow path so as to spout bathwater mixed with air bubbles into the bathtub body. There is.

また、最近、浴湯循環ポンプのモータをインバータを介
して駆動することにより、モータの回転数を可変にして
、同ポンプの吐出圧及び吐出量を制御できるようにした
ものが開発されている。
Furthermore, recently, a bath water circulation pump has been developed in which the motor of the bath water circulation pump is driven via an inverter so that the number of revolutions of the motor can be made variable and the discharge pressure and discharge amount of the pump can be controlled.

(ハ) 発明が解決しようとする課題 ところが、インバータの交流出力には、高周波成分が多
く含まれており、この高周波成分がモ−夕の界磁と巻線
間の容量結合によって界磁側に漏洩し、モータ等のアー
スが不完全であると、第110図、第11図で示すよう
な高周波電圧及び電流がポンプの接水部を介して浴槽本
体の浴湯に漏洩して入浴者が感電する危険性があった。
(c) Problems to be Solved by the Invention However, the AC output of the inverter contains many high frequency components, and these high frequency components are transferred to the field side due to capacitive coupling between the field of the motor and the windings. If there is a leak and the grounding of the motor, etc. is incomplete, high frequency voltage and current as shown in Figures 110 and 11 will leak into the bath water in the bathtub body through the water contact part of the pump, causing damage to the bather. There was a risk of electric shock.

なお、商用電源は必ず一方の極が大地にアースされてお
り、入浴者がアースされた物品に接触すると、インバー
タで発生した高周波電流が、同インバータ→モータの巻
線=(容量結合)−モータの界磁→ポンブー浴湯−人体
一アースされた物品→大地→商用電源のアース→商用電
源からインバータへの配線−インバータという経路を介
して漏洩し、上記経路中に介在した入浴者を感電させる
ことになる。
In addition, one pole of a commercial power supply is always grounded to the earth, and when a bather comes into contact with a grounded item, the high frequency current generated in the inverter is transferred from the inverter to the motor windings = (capacitive coupling) - motor Field → Ponbu bathtub - Human body - Grounded items → Earth → Commercial power supply ground → Wiring from commercial power supply to inverter - Leakage via the inverter path, electrocuting bathers who are intervening in the above path. It turns out.

空気取入部を連通連設して、気泡混じりの浴湯を浴槽本
体内に噴出すべく構成し、かつ、上記循環ボーンプのモ
ータ部を、インバータを介して駆動することにより、循
環ポンプの回転数を変速可能にした気泡発生浴槽におい
て、インバータの出力部に、高周波電流を阻止するフィ
ルタを介設したことを特徴とする気泡発生浴槽の浴湯循
環ポンプ駆動回路を提供せんとするものである。
The air intake section is connected in communication to eject bubble-mixed bath water into the bathtub body, and the motor section of the circulation pump is driven via an inverter to control the rotational speed of the circulation pump. The present invention aims to provide a bath water circulation pump drive circuit for a bubble generating bathtub in which the speed can be changed, characterized in that a filter for blocking high frequency current is interposed in the output section of the inverter.

(ホ) 作用・効果 本発明によれば、万一、モータ部等のアースが不完全で
あっても、前記の高周波漏洩電流の経路がフィルタで遮
断されているので、入浴者の感電を防市することができ
る。
(E) Functions and Effects According to the present invention, even if the grounding of the motor section, etc. is incomplete, the path of the high frequency leakage current is blocked by the filter, so electric shock to bathers can be prevented. City can.

(ニ) 課題を解決する手段 本発明では、浴槽本体と同浴槽本体の外部に設置した浴
湯の循環ポンプとの間に、浴湯吸込流路と浴湯強送流路
を介設し、浴湯強送流路の終端を浴槽本体内に開口する
と共に、同浴湯強送流路に(へ) 実施例 本発明の実施例を図面に基づいて説明すると、第1図及
び第2図において、(A)は本発明に係る気泡発生浴槽
を示しており、同気泡発生浴槽(A)は浴槽本体(1)
と同浴槽本体(1)の外部に設置した浴湯の循環ポンプ
(2)との間に、浴湯吸込流路(3)と浴湯強送流路(
4)とを介設し、浴湯吸込流路(4)の終端部を6個に
分岐し、分岐された浴湯強送流路(4)の各終端にそれ
ぞれ足側、背側、腹側噴出スズル(5) (5)、(6
)(8)、(7) (7)を連通連設し、同足側、背側
、腹側噴出ノズル(5)(5)、(6)(8) 、(7
)(7)を介し、浴湯強送流路(4)を浴槽本体(,1
)内に開口させると共に、同浴湯強送流路(4)に空気
取入部(8)を連通連設して、気泡混じりの浴湯を浴槽
本体(1)内に噴出すべく構成している。
(d) Means for solving the problem In the present invention, a bath water suction channel and a bath water forced flow channel are interposed between the bathtub body and a bath water circulation pump installed outside the bathtub body, The terminal end of the bath water forced flow path is opened into the bathtub body, and the bath water forced flow path is opened.Example An example of the present invention will be described based on the drawings.FIGS. 1 and 2. , (A) shows a bubble-generating bathtub according to the present invention, and the bubble-generating bathtub (A) is a bathtub body (1).
A bath water suction flow path (3) and a bath water forced flow flow path (
4), the terminal end of the bath water suction channel (4) is branched into six, and the foot side, dorsal side, and abdomen are connected to each terminal end of the branched bath water forced flow channel (4). Side spout nozzle (5) (5), (6
) (8), (7) (7) are connected and connected, and the same foot side, dorsal side, and ventral side jet nozzles (5) (5), (6) (8), (7) are connected.
) (7), the bath water forced flow channel (4) is connected to the bathtub body (,1
), and an air intake part (8) is connected to the bath water forced flow path (4) so that the bath water mixed with air bubbles is spouted into the bathtub body (1). There is.

また、浴槽本体(1)の周縁に所定幅のリム(9)を形
成して、同リム(9)に空気取入部(8)を設けている
Further, a rim (9) of a predetermined width is formed on the periphery of the bathtub body (1), and an air intake portion (8) is provided in the rim (9).

また、浴槽本体(1)の外部にポンプ保護ケース(lO
)を設けて、内部に前記の循環ポンプ(2)と濾過機(
11)と、制御装置(C)と、インバータ(13)と、
これらの付属機器を°収納している。
In addition, a pump protective case (lO
), and the above-mentioned circulation pump (2) and filter (
11), a control device (C), an inverter (13),
These accessory devices are stored here.

循環ポンプ(2)は、第3図で示すように、モータ部(
21)とポンプ部(22)とで構成されており、モータ
部(21)は、3相誘導モータであり、モータケーシン
グ(23)中に界磁(24)を配設して、同界磁(2A
)に巻線(25)を巻回し、同巻線(25)に交流電圧
を印加して回転磁界を発生させると共に、モータケーシ
ング(23)中に薄型の回転子(2B)を出力軸(27
)を介し軸支しており、後述のインバータ(13)によ
って回転磁界の回転速度を変更することによって、出力
軸(27)の回転速度を調節できるようにしている。
As shown in Fig. 3, the circulation pump (2) has a motor section (
21) and a pump section (22), the motor section (21) is a three-phase induction motor, and a field (24) is arranged in the motor casing (23) to (2A
) is wound around the winding (25), an alternating current voltage is applied to the winding (25) to generate a rotating magnetic field, and a thin rotor (2B) is inserted into the motor casing (23) on the output shaft (27).
), and the rotation speed of the output shaft (27) can be adjusted by changing the rotation speed of the rotating magnetic field using an inverter (13), which will be described later.

ポンプ部(22)は、ポンプケーシング(28)内に、
浴湯吸込流路(3)と濾過機(11)とに連通した上段
インペラー室(29)と、浴湯吸込流路(3)と浴湯強
送流路(4)とに連通した下段インペラー室(30)と
を形成し、上段、下段インペラー室(29)(30)中
にそれぞれ上段、下段インペラー(31)(32)を回
動自在に配設して出力軸(27)に連動連結している。
The pump part (22) has inside the pump casing (28),
An upper impeller chamber (29) that communicates with the bath water suction channel (3) and the filter (11), and a lower impeller that communicates with the bath water suction channel (3) and the forced bath water flow channel (4). The upper and lower impellers (31 and 32) are rotatably arranged in the upper and lower impeller chambers (29 and 30), respectively, and are interlocked and connected to the output shaft (27). are doing.

また、図示するように、モータケーシング(23)とポ
ンプケーシング(28)との間に、合成樹脂製の絶縁板
(33)を介設して、界磁(24)を介してモータケー
シング(23)に漏洩した高周波電流が、ポンプケーシ
ング(28)を介して浴湯に漏洩するのを防止すると共
に、上段、下段インペラー(31)(32)を電気絶縁
性を有する合成樹脂素材で一体に構成し、同インペラー
(31)(32)の中心軸(34)を上方に延設して、
同軸(34)の上端部に出力軸挿入孔(35)を穿設し
、回礼(35)にモータ部(21)の出力軸(27)を
挿入固定し、ケーシング(28)の上部と中心軸(34
)との間にメカニカルシール(36)を介設して漏水を
防止すると共に、電気絶縁性を有する合成樹脂の中心軸
(34)によってポンプ部(22)とモータ部(21)
とを電気的に絶縁している。
Further, as shown in the figure, an insulating plate (33) made of synthetic resin is interposed between the motor casing (23) and the pump casing (28), and the motor casing (23) is connected to the motor casing (23) via the field (24). ) is prevented from leaking into the bath water via the pump casing (28), and the upper and lower impellers (31) and (32) are integrally constructed from a synthetic resin material with electrical insulation properties. Then, by extending the central shafts (34) of the impellers (31) and (32) upward,
An output shaft insertion hole (35) is bored in the upper end of the coaxial (34), and the output shaft (27) of the motor section (21) is inserted and fixed into the circumference (35), and the upper part of the casing (28) and the center shaft (34
) to prevent water leakage, and a central shaft (34) made of electrically insulating synthetic resin to connect the pump part (22) and the motor part (21).
and are electrically insulated.

インバータ(13)は、第4図、第5図で示すように、
商用電源(37)からの単to交流100vを、整流回
路(38)及び平、滑回路(F)で直流200■に変換
し、スイッチング回路(39)に(J%給し、同スイッ
チング回路(39)を、インバータ制御回路(12)を
介し制御装置(C)で制御して、インバータ(13)の
出力周波数を任意に変更することができる。
The inverter (13), as shown in FIGS. 4 and 5,
The DC 100V from the commercial power supply (37) is converted into DC 200V by the rectifier circuit (38) and the smoothing circuit (F), and the switching circuit (39) is supplied with (J%), and the switching circuit ( 39) can be controlled by the control device (C) via the inverter control circuit (12) to arbitrarily change the output frequency of the inverter (13).

したがって、制御装置(C)からの制御によって、循環
ポンプ(2)の回転数を変更して、同ポンプ(2)の吐
出圧および吐出量を変更することができることになる。
Therefore, under control from the control device (C), the rotation speed of the circulation pump (2) can be changed to change the discharge pressure and discharge amount of the pump (2).

また、上記インバータの出力波形をPWM制御すること
により、同出力波形の平均値を正弦波形に近似させて、
モータ部(21)の回転を円滑にしている。
In addition, by PWM controlling the output waveform of the inverter, the average value of the output waveform is approximated to a sine waveform,
The motor section (21) rotates smoothly.

しかしながら、かかるインバータ(■3)から出力され
る交流電力には、前述したように非常に多くの高周波成
分が含まれており、この高周波成分が、モータ部(2■
)の界磁(24)と巻線(25)間の容量結合を介して
浴湯に漏洩し、モータ部(21)のアースが不完全であ
ると、モータ部(21)と電源(37)のアースとの間
に、入浴者の人体を介して高周波電流の経路ができ、前
記したような高周波電流が浴湯中を流れて入浴者が感電
するおそれがある。
However, as mentioned above, the AC power output from the inverter (■3) contains a large number of high frequency components, and these high frequency components are transmitted to the motor section (2).
) leaks into the bath water through the capacitive coupling between the field (24) and the winding (25), and if the grounding of the motor part (21) is incomplete, the motor part (21) and the power supply (37) A high-frequency current path is created between the body of the bather and the ground, and there is a risk that the high-frequency current as described above will flow through the bathing water and cause the bather to receive an electric shock.

そこで本実施例では、第4図で示すように、インバータ
(13)とモータ部(21)の巻線(25)の間に、そ
れぞれフィルタ(43)を介設して、上記の高周波電流
が流れ難くしている。
Therefore, in this embodiment, as shown in FIG. 4, filters (43) are interposed between the inverter (13) and the windings (25) of the motor section (21) to prevent the above-mentioned high frequency current. It makes it difficult to flow.

フィルタ(43)は、第4図で示すように、焼結フェラ
イトを素材としたトロイダルコア(44)に巻線(45
)を巻回して、高周波インピーダンスを高めたものであ
り、特に、トロイダルコア(44)を用いたことで磁気
回路形成の効率がよく、更に磁束漏洩かなく、ノイズの
原因にならないという利点がある。
As shown in FIG. 4, the filter (43) includes a winding (45) around a toroidal core (44) made of sintered ferrite.
) is wound to increase high frequency impedance.In particular, the use of a toroidal core (44) has the advantage of high efficiency in forming a magnetic circuit, as well as no leakage of magnetic flux and no cause of noise. .

かかるフィルタ(43)を3個、第4図で示すように、
インバータ(13)からモータ部(21)への3本の導
線の中途に介在させることで、インバータ(13)出力
中の高周波成分を減衰させ、第6図、第7図で示すよう
に、浴湯中に僅かな高周波電流しか漏洩させないように
することができ、感電事故を防雨することかできる。
Three such filters (43), as shown in FIG.
By interposing the three conductive wires from the inverter (13) to the motor section (21), the high frequency components in the inverter (13) output are attenuated, and as shown in FIGS. 6 and 7, the bath It is possible to prevent only a small amount of high-frequency current from leaking into the hot water, and it is possible to prevent electric shock accidents from rain.

また、本実施例において各噴出ノズル(5) (6) 
(7)は同一構成であり、足側噴出ノズル(5)を例に
とり、第8図を参照して説明する。
In addition, in this embodiment, each jet nozzle (5) (6)
(7) has the same configuration, and will be explained with reference to FIG. 8, taking the foot side jet nozzle (5) as an example.

足側噴出ノズル(5)は、浴槽本体(1)の側壁に嵌入
させた筒状のノズル本体(70)と、同ノズル本体り7
0)内に設けた弁座(71)と、同弁座(71)の後方
に設けた弁体(72)と、同弁体(72)を進退作動さ
せるノズルモータ(旧)と、上記弁座(71)の前方に
設けた首振り自在のスロート(73)とで構成されてい
、る。
The foot side jet nozzle (5) includes a cylindrical nozzle body (70) fitted into the side wall of the bathtub body (1), and a nozzle body 70 fitted into the side wall of the bathtub body (1).
0), a valve body (72) provided behind the valve seat (71), a nozzle motor (old) that moves the valve body (72) forward and backward, and the valve It consists of a swingable throat (73) provided in front of the seat (71).

ノズル本体く70)には、その後部に浴湯強送流路(4
)を連通させ、上記弁座(71)に弁体(72)を接離
させて、同ノズル(5)からの浴湯の噴出量と噴出圧と
を1週節すると共に、中央部周壁に空気取入部(8)を
連通した空気吸入口(74)を開口させて、弁座(71
)を通過した浴湯のエジェクタ効果により、浴槽本体(
1)内に噴出する浴湯中に空気を混入させるように構成
している。
The nozzle body (70) has a bath water forced flow path (4) at its rear.
), and the valve body (72) is brought into contact with and separated from the valve seat (71), and the amount and pressure of hot water spouted from the nozzle (5) are adjusted for one week, and the central peripheral wall is The air intake port (74) communicating with the air intake part (8) is opened, and the valve seat (71) is opened.
) Due to the ejector effect of the bath water that has passed through the bathtub body (
1) It is constructed so that air is mixed into the bath water spouted inside.

ノズルモータ(Ml)は、ノズル本体(70)の後壁に
取付けられたステッピングモータと、同モータの回転運
動を直線運動に変換して弁体(72)に伝達するボール
スクリューとて構成されており、後端部に弁体(72)
の位置を噴出する弁体位置センサ(75)を配設してい
る。
The nozzle motor (Ml) is composed of a stepping motor attached to the rear wall of the nozzle body (70) and a ball screw that converts the rotational motion of the motor into linear motion and transmits it to the valve body (72). There is a valve body (72) at the rear end.
A valve body position sensor (75) is installed to detect the position of the valve body.

制御装置(C)は第9図で示すように、マイクロプロセ
ッサ(MPU)と、入出力インターフェース(1) (
0)と、制御プログラムを格納したメモリ(M)と、タ
イマ(T)とで構成されており、人力インク−フェース
(1)には、浴湯強送流路(4)に配設した温度センサ
(1)と圧力センサ(p)と、操作パネル部(14)に
配設した気泡発生浴槽(A)の運転を0N−OFFした
り、各噴出ノズルからの浴湯噴出を強弱調節したり、浴
湯の噴出形態を指定したり、浴湯を噴出させるノズルを
指定したりする各種スイッチ(50) (50)・・・
と接続しており、これらのセンサ(t)(p)及びスイ
ッチ群からの入力により各噴出ノズル(5) (5)(
6) (8) (7) (7)の開閉度合や、循環ポン
プ(2)の回転数等を制御して、各種の浴湯噴出形態を
とることができるようにしている。
As shown in Figure 9, the control device (C) includes a microprocessor (MPU) and an input/output interface (1) (
0), a memory (M) storing a control program, and a timer (T). The sensor (1), the pressure sensor (p), and the operation of the bubble generating bathtub (A) arranged on the operation panel section (14) are turned off, and the strength of the hot water spout from each spout nozzle is adjusted. , various switches (50) (50) for specifying the spout form of bath water and the nozzle for spouting bath water.
Each jet nozzle (5) (5) (
6) (8) (7) By controlling the opening/closing degree of (7), the rotation speed of the circulation pump (2), etc., it is possible to take various forms of hot water spouting.

また、第1図に示すように、空気取入部(8)上に設け
た操作パネル部(14)は、−側端部に赤外線受信部(
17)を設けて、リモートコントローラ(1B)からの
制御信号を受けるようにしている。
Further, as shown in Fig. 1, the operation panel section (14) provided on the air intake section (8) has an infrared receiving section (
17) to receive control signals from the remote controller (1B).

リモートコントローラ(1B)には、操作パネル部(1
4)に配設した各種スイッチ(50) (5G)・・・
に対応したスイッチ群を配設しており、同スイッチ群の
操作により、各スイッチごとに設定した赤外線信号を赤
外線照射部(15)から発信し、同赤外線信号を操作パ
ネル部(14)の赤外線受信部(17)で受信して、制
御装置(C)の人力インターフェース(+)に入力する
ことにより、入浴者からの制御操作を受付けて、上記各
スイッチに対応した浴湯の噴出形態をとるように構成し
ている。
The remote controller (1B) has an operation panel section (1
4) Various switches (50) (5G)...
By operating the switch group, an infrared signal set for each switch is transmitted from the infrared irradiation section (15), and the same infrared signal is transmitted to the infrared rays of the operation panel section (14). By receiving the information at the receiving unit (17) and inputting it to the human power interface (+) of the control device (C), the control operation from the bather is accepted and the bath water is spouted in a manner corresponding to each of the above switches. It is configured as follows.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による浴湯循環ポンプ駆動回路を有する
気泡発生浴槽の全体斜視図、第2図は同浴槽の構成を示
す説明図、第3図は循環ポンプの縦断面図、第4図はイ
ンバータの構成を示すブロック図、第5図はスイッチン
グ回路図、第6図、第7図は本発明における浴湯中の高
周波電圧及び電流を示すグラフ、第8図は浴湯噴出ノズ
ルの断面図、第9図は制御装置の構成を示すブロック図
、第10図、第11図は従来技術における浴湯中の高周
波電圧及び電流を示すグラフ。 (A):気泡発生浴槽 (1):浴槽本体 (2) (3) (4) (8) (13) (21) (37) (43) 循環ポンプ 浴湯吸込流路 浴湯強送流路 空気取入部 インバータ モータ部 電源 フィルタ
Fig. 1 is an overall perspective view of a bubble generating bathtub having a bath water circulation pump drive circuit according to the present invention, Fig. 2 is an explanatory diagram showing the structure of the bathtub, Fig. 3 is a longitudinal sectional view of the circulation pump, and Fig. 4 is a block diagram showing the configuration of the inverter, FIG. 5 is a switching circuit diagram, FIGS. 6 and 7 are graphs showing high-frequency voltage and current in bath water in the present invention, and FIG. 8 is a cross section of a bath water spouting nozzle. 9 are block diagrams showing the configuration of a control device, and FIGS. 10 and 11 are graphs showing high-frequency voltage and current in bath water in the prior art. (A): Bubble generating bathtub (1): Bathtub body (2) (3) (4) (8) (13) (21) (37) (43) Circulation pump bath water suction channel Bath water forced flow channel Air intake section Inverter motor section power supply filter

Claims (1)

【特許請求の範囲】 1)浴槽本体(1)と同浴槽本体(1)の外部に設置し
た浴湯の循環ポンプ(2)との間に、浴湯吸込流路(3
)と浴湯強送流路(4)とを介設し、浴湯強送流路(4
)の終端を浴槽本体(1)内に開口させると共に、同浴
湯強送流路(4)に空気取入部(8)を連通連設して、
気泡混じりの浴湯を浴槽本体(1)内に噴出すべく構成
し、かつ、上記循環ポンプ(2)のモータ部(21)を
、インバータ(13)を介して駆動することにより、循
環ポンプ(2)の回転数を変速可能にした気泡発生浴槽
(A)において、 インバータ(13)の出力部に、高周波電流を阻止する
フィルタ(43)を介設したことを特徴とする気泡発生
浴槽の浴湯循環ポンプ駆動回路。
[Claims] 1) A bath water suction channel (3) is provided between the bathtub body (1) and a bath water circulation pump (2) installed outside the bathtub body (1).
) and a forced bath water flow path (4) are interposed, and a forced bath water flow path (4) is provided.
) is opened into the bathtub body (1), and an air intake part (8) is connected to the bathwater forced flow channel (4),
The circulation pump ( 2) In the bubble generating bathtub (A) whose rotational speed can be changed, a filter (43) for blocking high frequency current is interposed in the output section of the inverter (13). Hot water circulation pump drive circuit.
JP1140147A 1989-06-01 1989-06-01 Bath water circulation pump drive circuit of bubble generation bathtub Expired - Lifetime JP2890480B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1140147A JP2890480B2 (en) 1989-06-01 1989-06-01 Bath water circulation pump drive circuit of bubble generation bathtub

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1140147A JP2890480B2 (en) 1989-06-01 1989-06-01 Bath water circulation pump drive circuit of bubble generation bathtub

Publications (2)

Publication Number Publication Date
JPH034862A true JPH034862A (en) 1991-01-10
JP2890480B2 JP2890480B2 (en) 1999-05-17

Family

ID=15261965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1140147A Expired - Lifetime JP2890480B2 (en) 1989-06-01 1989-06-01 Bath water circulation pump drive circuit of bubble generation bathtub

Country Status (1)

Country Link
JP (1) JP2890480B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010200979A (en) * 2009-03-04 2010-09-16 Brother Ind Ltd Sewing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010200979A (en) * 2009-03-04 2010-09-16 Brother Ind Ltd Sewing machine

Also Published As

Publication number Publication date
JP2890480B2 (en) 1999-05-17

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