JPH0313823A - Bathtub-water-level detecting apparatus - Google Patents
Bathtub-water-level detecting apparatusInfo
- Publication number
- JPH0313823A JPH0313823A JP1148959A JP14895989A JPH0313823A JP H0313823 A JPH0313823 A JP H0313823A JP 1148959 A JP1148959 A JP 1148959A JP 14895989 A JP14895989 A JP 14895989A JP H0313823 A JPH0313823 A JP H0313823A
- Authority
- JP
- Japan
- Prior art keywords
- bathtub
- water level
- water
- diaphragm
- frequency
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003287 bathing Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Control For Baths (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は浴槽の水位を圧力として検知する水位センサー
を使用した浴槽水位検出装置に関し、浴槽に自動的に湯
張を行う自動風呂に用いられるものであり、特に浴槽か
ら離れて給湯機を設置する遠隔設置式自動風呂に利用す
るものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a bathtub water level detection device using a water level sensor that detects the water level in the bathtub as pressure, and is used in automatic baths that automatically fill the bathtub with hot water. This is particularly useful for remotely installed automatic baths where the water heater is installed away from the bathtub.
従来の技術
従来この種の自動風呂装置は第3図に示す様なものがあ
る。第3図において、浴槽1に接続された循環アダプタ
ー2の一部に水位センサー3が設けられ、浴槽1から離
れて設置された給湯機4は給湯及び循環を行なう循環パ
イプ5で浴槽lと接続され、水位センサー3と給湯機4
とは接続コード6で給湯機4に接続される。2. Description of the Related Art Conventionally, there is an automatic bathing device of this type as shown in FIG. In FIG. 3, a water level sensor 3 is installed in a part of a circulation adapter 2 connected to a bathtub 1, and a water heater 4 installed apart from the bathtub 1 is connected to the bathtub 1 through a circulation pipe 5 for supplying and circulating hot water. water level sensor 3 and water heater 4
is connected to the water heater 4 with a connection cord 6.
上記構成において従来例は、循環パイプの一方から浴槽
への給湯が開始され、浴槽水による水圧を水位センサー
3が検知し接続コード6により給湯機4に信号が送られ
、給湯機4内の制御器で設定水位と比較され、浴槽への
給湯を制御するものである。In the conventional example with the above configuration, hot water supply to the bathtub is started from one side of the circulation pipe, the water level sensor 3 detects the water pressure of the bathtub water, a signal is sent to the water heater 4 via the connection cord 6, and the control inside the water heater 4 is performed. The water level is compared with the set water level in the water tank, and the water supply to the bathtub is controlled.
発明が解決しようとする課題
上記のように、従来例の水位検出器は浴槽と、給湯器の
間を接続コードで接続する必要があり、設置工事が煩雑
になり、また接続部が湿気の多い環境に置かれるので信
鎖性が悪く、かつ壁の中に埋め込まれて保守が困難であ
るという課題を有している。Problems to be Solved by the Invention As mentioned above, conventional water level detectors require a connection cord between the bathtub and the water heater, making installation work complicated and causing the connection to be prone to high humidity. Since they are placed in the environment, they have poor reliability and are embedded in walls, making maintenance difficult.
本発明は上記課題を解決するもので、従来例の接続コー
ドをなくして、信鎖性の向上と保守を容易にするもので
ある。The present invention solves the above problems and eliminates the connection cord of the conventional example, thereby improving reliability and facilitating maintenance.
課題を解決するための手段
上記課題を解決するために本発明は、浴槽に連通して設
けられた水位検出の圧力センサーと、前記圧力センサー
の信号により変調される無線発信機およびその電池と、
前記圧力センサーの信号が一定値以上の時に前記無線発
信機に電力を供給するパワー制御回路とで構成される。Means for Solving the Problems In order to solve the above problems, the present invention provides a pressure sensor for detecting water level that is provided in communication with a bathtub, a wireless transmitter that is modulated by a signal from the pressure sensor, and a battery thereof.
and a power control circuit that supplies power to the radio transmitter when the signal from the pressure sensor is above a certain value.
作用
上記構成により本発明は、圧力センサーで検出した水位
信号は無線発信機からの電波に乗せて発信され、給湯機
本体等の外部に水位信号が伝えられるのである。無線発
信機はパワー制御回路により圧力センサーの信号が一定
値以上の時のみ電池より電力が供給される。Function: According to the present invention, the water level signal detected by the pressure sensor is transmitted on radio waves from the wireless transmitter, and the water level signal is transmitted to the outside of the water heater body or the like. The wireless transmitter is supplied with power from the battery only when the signal from the pressure sensor is above a certain value by the power control circuit.
実施例
以下、本発明の実施例を第1図、第2図にもとづいて説
明する。第1図において、アダプター本体7は、接続ネ
ジ8及びパツキン9とで浴槽1に固定されている。アダ
プター本体7には給湯管10、戻り管11が接続され、
一方吐出・吸い込み口12により給湯管IO戻り管11
は浴槽1に通じている。EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 and 2. In FIG. 1, the adapter body 7 is fixed to the bathtub 1 with connection screws 8 and packing 9. A hot water pipe 10 and a return pipe 11 are connected to the adapter body 7,
On the other hand, the hot water supply pipe IO return pipe 11 is connected to the discharge/suction port 12.
leads to bathtub 1.
アダプター本体内の吸い込み通路内に面してダイアフラ
ム13とダイアフラム13に連結された可動電極14と
対向した固定電極15とで水位センサーが構成され、前
記可動電極14と固定電極15とで構成される静電容量
16による発振回路17と、発振回路17の信号でlN
m1される無線周波の発信1118とが設けられ、前記
発信機18の出力はアンテナ19に接続される。パワー
制御回路20には発振回路17の信号が入力され、その
出力を介して電池21が発信機18に接続されている。A water level sensor is constituted by a diaphragm 13 facing into the suction passage in the adapter body, a movable electrode 14 connected to the diaphragm 13, and a fixed electrode 15 opposed to it, and constituted by the movable electrode 14 and the fixed electrode 15. The oscillation circuit 17 by the capacitance 16 and the signal of the oscillation circuit 17
A radio frequency transmitter 1118 is provided, the output of which is connected to an antenna 19. A signal from the oscillation circuit 17 is input to the power control circuit 20, and a battery 21 is connected to the transmitter 18 via its output.
第2図において、給湯機本体4の中には受信機22が設
けられている。In FIG. 2, a receiver 22 is provided inside the main body 4 of the water heater.
上記構成により、給湯機本体4から給湯管10を通して
給湯が開始されると、ダイアフラム13は浴槽水の水圧
を受けて変位し、可動電極14と固定電極15の間隔が
狭くなり、共振回路17を構成する静電容量16の変化
により発振回路17の周波数が低くなる。パワー制御回
路20は発信回路17の信号の周波数を検出し、周波数
が一定値より低いときに発信機18に電池21の電力を
供給する。すなわち浴槽の水位がダイアフラム13より
も一定値以上高いときのみ電波が発信され、浴槽の湯が
抜かれて空の時には電波は発信されない。With the above configuration, when hot water starts to be supplied from the water heater main body 4 through the hot water pipe 10, the diaphragm 13 is displaced in response to the water pressure of the bathtub water, the interval between the movable electrode 14 and the fixed electrode 15 is narrowed, and the resonant circuit 17 is The frequency of the oscillation circuit 17 decreases due to a change in the constituent capacitance 16. The power control circuit 20 detects the frequency of the signal from the transmitting circuit 17 and supplies power from the battery 21 to the transmitter 18 when the frequency is lower than a certain value. That is, radio waves are transmitted only when the water level in the bathtub is higher than the diaphragm 13 by a certain value or more, and radio waves are not transmitted when the bathtub is empty after the hot water has been drained.
アンテナ19からの電波は受信機22で受信され、その
周波数を検知して水位を知ることができ、設定水位に応
じて浴槽への給湯が制御される。The radio waves from the antenna 19 are received by the receiver 22, and the water level can be determined by detecting the frequency, and hot water supply to the bathtub is controlled according to the set water level.
このようにアダプターに設けられた水位センサーと給湯
機の間には接続コードが不要になり、設置工事を容易に
するとともに、水位センサ一部はアダプター内に密閉す
ることも可能になり対環境信鎖性にも優れるものである
。パワー制御回路で圧力センサーの信号により浴槽水位
が一定値以上の時のみ電波を発信するため電池21の寿
命が永くなる。In this way, there is no longer a need for a connection cord between the water level sensor installed in the adapter and the water heater, which simplifies installation work, and it is also possible to seal a portion of the water level sensor inside the adapter, reducing environmental concerns. It also has excellent chain properties. Since the power control circuit transmits radio waves only when the water level in the bathtub is above a certain value based on the signal from the pressure sensor, the life of the battery 21 is extended.
実施例では、圧力センサーが静電容量式で構成されてい
るが他の方式の圧力センサーで構成することも可能であ
る。In the embodiment, the pressure sensor is a capacitance type, but it is also possible to use other types of pressure sensors.
発明の効果
上記のように本発明の浴槽水位検出装置は、浴槽に連通
して設けられた水位検出の圧力センサーと、前記圧力セ
ンサーの信号により変調される無線発信機およびその電
池と、圧力センサーの信号が一定値以上の時に前記無線
発信機に電力を供給するパワー制御回路とで構成するこ
とにより、次の効果が得られ、る。Effects of the Invention As described above, the bathtub water level detection device of the present invention comprises: a pressure sensor for water level detection provided in communication with a bathtub; a wireless transmitter and its battery modulated by the signal of the pressure sensor; and a pressure sensor. By configuring the wireless transmitter with a power control circuit that supplies power to the wireless transmitter when the signal is above a certain value, the following effects can be obtained.
(1) 水位センサーと給湯機の間には接続コードが
不要になり、設置工事を容易にするとともに、水位セン
サ一部はアダプター内に密閉することも可能になり対環
境信鎖性にも優れるものである。(1) No connection cord is required between the water level sensor and the water heater, which simplifies installation work, and it is also possible to seal part of the water level sensor inside the adapter, which provides excellent environmental reliability. It is something.
(2)電波の発信が浴槽に湯のある時のみ行なわれ不要
な電力の消費を防ぎ、電池の寿命を永くすることができ
、保守を不要にするものである。(2) Radio waves are transmitted only when there is hot water in the bathtub, thereby preventing unnecessary power consumption, extending battery life, and eliminating the need for maintenance.
第1図は本発明の一実施例における浴槽水位検出装置の
断面図、第2図は同装置の全体構成図、第3図は従来例
の水位検出装置の構成図である。
l・・・・・・浴槽、4・・・・・・給湯機本体、7・
・・・・・アダプター本体、13・・・・・・ダイアフ
ラム、14・・・・・・可動電極、l5・・・・・・固
定電極、18・・・・・・発信機、20・・・・・・パ
ワー制御回路、21・・・・・・電池。FIG. 1 is a sectional view of a bathtub water level detection device according to an embodiment of the present invention, FIG. 2 is an overall configuration diagram of the same device, and FIG. 3 is a configuration diagram of a conventional water level detection device. l...Bathtub, 4...Water heater body, 7.
...adapter body, 13 ... diaphragm, 14 ... movable electrode, l5 ... fixed electrode, 18 ... transmitter, 20 ... ...Power control circuit, 21...Battery.
Claims (1)
前記圧力センサーの信号により変調される無線発信機と
、前記無線発信機に電力を供給する電池と、前記圧力セ
ンサーの信号が一定値以上の時に前記無線発信機に電力
を供給するパワー制御回路とで構成される浴槽水位検出
装置。A pressure sensor for water level detection installed in communication with the bathtub,
a wireless transmitter that is modulated by a signal from the pressure sensor; a battery that supplies power to the wireless transmitter; and a power control circuit that supplies power to the wireless transmitter when the pressure sensor signal is above a certain value. A bathtub water level detection device consisting of:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1148959A JPH0313823A (en) | 1989-06-12 | 1989-06-12 | Bathtub-water-level detecting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1148959A JPH0313823A (en) | 1989-06-12 | 1989-06-12 | Bathtub-water-level detecting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0313823A true JPH0313823A (en) | 1991-01-22 |
Family
ID=15464490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1148959A Pending JPH0313823A (en) | 1989-06-12 | 1989-06-12 | Bathtub-water-level detecting apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0313823A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883876A (en) * | 1972-02-04 | 1973-11-08 | ||
JPS60219516A (en) * | 1984-04-16 | 1985-11-02 | Matsushita Electric Ind Co Ltd | Bath boiler with water level detector |
JPS6319519A (en) * | 1986-07-11 | 1988-01-27 | Noritsu Co Ltd | Bathtub water level detector |
JPS6373500A (en) * | 1986-09-17 | 1988-04-04 | 三菱電機株式会社 | Data communication from underground and underground communication apparatus therefor |
JPS6350011B2 (en) * | 1981-04-28 | 1988-10-06 | Olympus Optical Co |
-
1989
- 1989-06-12 JP JP1148959A patent/JPH0313823A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883876A (en) * | 1972-02-04 | 1973-11-08 | ||
JPS6350011B2 (en) * | 1981-04-28 | 1988-10-06 | Olympus Optical Co | |
JPS60219516A (en) * | 1984-04-16 | 1985-11-02 | Matsushita Electric Ind Co Ltd | Bath boiler with water level detector |
JPS6319519A (en) * | 1986-07-11 | 1988-01-27 | Noritsu Co Ltd | Bathtub water level detector |
JPS6373500A (en) * | 1986-09-17 | 1988-04-04 | 三菱電機株式会社 | Data communication from underground and underground communication apparatus therefor |
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