JP4071508B2

JP4071508B2 - Toilet equipment

Info

Publication number: JP4071508B2
Application number: JP2002046469A
Authority: JP
Inventors: 洋永里; 融士山本; 真平野; 恭宏河本
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2002-02-22
Filing date: 2002-02-22
Publication date: 2008-04-02
Anticipated expiration: 2022-02-22
Also published as: JP2003247263A

Description

【０００１】
【発明の属する技術分野】
本発明はトイレ装置に関し、特に洗浄水を瞬間式加熱手段にて温水にしてノズル手段から局部に噴射するようにしたトイレ装置に関するものである。
【０００２】
【従来の技術】
従来の瞬間式加熱手段を用いた温水洗浄手段を有するトイレ装置として、図４に示すように、水道端末から逆止弁２１、定流量弁２２を介して電磁開閉弁２３に給水され、洗浄時に電磁開閉弁２３から真空破壊弁２４、ポンプ２５、流量センサ２６を介して瞬間式加熱手段２７に送給され、所定温度に加温された洗浄水がノズル手段２８にて局部に向けて噴射するように構成されている。２９はオーバーフロー通路である。以上の逆止弁２１〜ポンプ２５とオバーフロー通路２９にて給水手段３０が構成されている。瞬間式加熱手段２７の入口側には、入水する水温を検出するサーミスタから成る入水温度検出手段３１が、出口側にはノズル手段２８に供給される温水の温度を検出するサーミスタから成る出水温度検出手段３２が配設されている。
【０００３】
このトイレ装置の制御装置は、図５に示すように、制御手段３３に、流量センサ２６、入水温度検出手段３１、出水温度検出手段３２及び設定手段３４からの各検出信号と設定データ信号が入力され、それらのデータに基づいて給水手段３０による給水量制御や瞬間式加熱手段２７に対する通電制御を行って所望の温度・流量の温水をノズル手段２８に供給し、またノズル手段２８の切り換え制御を行うように構成されている。
【０００４】
洗浄開始時には、流量センサ２６にて検出した流量と、入水温度検出手段３１にて検出した入水温度と、設定された湯温に基づいて瞬間式加熱手段２７における加熱量を演算し、瞬間式加熱手段２７に対する通電制御を行っている。
【０００５】
通常使用時には、流量センサ２６にて検出した流量と、入水温度検出手段３１にて検出した入水温度と、出水温度検出手段３２にて検出した出水温度と、設定温度とに基づいてＰＩＤ制御にて瞬間式加熱手段２７に対して通電制御を行い、所望の湯温に制御している。
【０００６】
また、ノズル手段２８から噴射する温水の流量制御は、流量センサ２６にて検出した流量と設定流量に基づいて給水手段３０を制御することによって行っている。
【０００７】
【発明が解決しようとする課題】
しかしながら、上記従来の構成では、流量センサ２６を用いているため、コスト高になるという問題がある。
【０００８】
本発明は、上記従来の問題点に鑑み、流量センサを用いない低コストの構成にて正確な流量制御ができるトイレ装置を提供することを目的としている。
【０００９】
【課題を解決するための手段】
本発明のトイレ装置は、洗浄水を局部に噴出するノズル手段と、設定された作動制御値で作動してノズル手段に向けて洗浄水を供給する給水手段と、ノズル手段に供給される洗浄水を瞬間的に温水に加熱する瞬間式加熱手段と、瞬間式加熱手段に供給される洗浄水の温度を検出する入水温度検出手段と、瞬間式加熱手段から出た洗浄水の温度を検出する出水温度検出手段と、給水手段と瞬間式加熱手段を制御する制御手段とを備え、制御手段は、給水手段の作動制御値を、瞬間式加熱手段における加熱量と入水温度検出手段による検出温度と出水温度検出手段による検出温度とにより洗浄水の流量を算出してその流量が所定の流量になるように決定し、瞬間式加熱手段における加熱量を、給水手段の作動制御値から推定された洗浄水の流量と、入水温度検出手段による検出温度と、洗浄水の設定温度とにより決定するように構成したものであり、瞬間式加熱手段における加熱量と加熱前後の温度差に基づいて流量を算出することによって、流量センサを用いない低コストの構成にて正確な流量制御を行うことができ、かつ上記加熱量制御により所定の湯温に精度良く制御された洗浄水が確実に得られる。
【００１０】
また、制御手段は、給水手段の作動制御値と洗浄水の設定流量との関係を、各トイレ装置の製造過程でトイレ装置に仮設した外部流量検出手段により検出した実際の流量とその時の給水手段の作動制御値との関係を記憶してなるのが好適である。
【００１１】
また、制御手段を、瞬間式加熱手段の加熱量と入水と出水の検出温度差から流量を算出する際に、予め得られている瞬間式加熱手段における加熱量と温度上昇値との関係を参照するように構成すると、流量算出の精度が向上し、さらに正確な流量制御を行うことができる。
【００１２】
また、電源電圧を検出する電源電圧検出手段を備え、制御手段を、電源電圧に応じて瞬間式加熱手段の制御値を補正するように構成すると、電源電圧の変動によって瞬間式加熱手段による加熱量が変動するのを防止して所定の湯温及び流量に精度良く制御された洗浄水を確実に得ることができる。
【００１３】
また、給水手段をポンプとそれを駆動するモータを備えた構成として、モータの出力制御によって給水水量を可変するようにしてもよいし、給水手段を流量調整弁を備えた構成として、流量調整弁の開度調整によって給水水量を可変するようにしてもよい。
【００１４】
【発明の実施の形態】
以下、本発明のトイレ装置の一実施形態について、図１、図２を参照して説明する。
【００１５】
図１において、水道端末から逆止弁１、定流量弁２を介して電磁開閉弁３に給水されており、洗浄時に電磁開閉弁３から真空破壊弁４を介してモータ６にて駆動制御されるポンプ５にて瞬間式加熱手段７に給水され、この瞬間式加熱手段７にて所定温度に加温された洗浄水がノズル手段８に供給されて局部に向けて噴射するように構成されている。９はオーバーフロー通路である。以上の逆止弁１〜ポンプ５とオーバーフロー通路９にて給水手段１０が構成されている。
【００１６】
ポンプ５とモータ６の組み合わせは、ギヤポンプとＤＣサーボモータの組み合わせが一般的であり、その電圧制御には交流電源を用いた位相制御や直流電源によるＰＷＭ（パルス幅変調制御）やＰＦＭ（パルス周波数変調制御）を適用することができる。また、ＤＣサーボモータに代えてパルスモータやシンクロナスモータ等の周波数同期型制御モータを用いると、確実に再現性のある流量調整ができるとともに微調整が可能であるため好適である。また、ポンプとモータの組み合わせに代えて電磁ポンプを用いることもできる。
【００１７】
瞬間式加熱手段７は、温水ヒータとしてのセラミックヒータを蛇行状の熱交換流路に臨ませて構成されている。この瞬間式加熱手段７の入口側に、洗浄水の温度を検出するサーミスタから成る入水温度検出手段（ＴsI）１１が、出口側に、加温された洗浄水の温度を検出するサーミスタから成る出水温度検出手段（ＴsO）１２が配設されている。
【００１８】
このトイレ装置の制御装置は、図２に示すように、制御手段１３に、入水温度検出手段１１、出水温度検出手段１２からの検出信号、設定手段１４からの設定データ信号、及び電源電圧検出手段１５からの検出信号が入力され、それらのデータに基づいて給水手段１０による流量制御や瞬間式加熱手段７に対する通電制御を行って所望の温度・流量の温水をノズル手段８に供給し、またノズル手段８の切り換え制御を行うように構成されている。
【００１９】
この制御手段１３による洗浄開始時の具体的な制御動作を説明すると、制御手段１３から設定手段１４による設定流量に応じた作動制御値が給水手段１０のモータ６に出力され、給水手段１０にて対応する流量の給水が行われる。また、入水温度検出手段１１による検出温度と給水手段１０のモータ６の作動制御値とに基づいて瞬間式加熱手段７に対する通電制御値が決定され、瞬間式加熱手段７に通電されて洗浄水の加熱が行われる。すなわち、瞬間式加熱手段７の出水温度検出が利用できない洗浄開始時に、設定手段１４にて設定されている流量の設定値に応じて決定されている給水手段１０のモータ６の作動制御値に基づいて流量を推定し、その流量と入水温度検出手段１１にて検出した入水温度に基づいて瞬間式加熱手段７に対する通電制御を行っている。瞬間式加熱手段７における通電による加熱量Ｑは、Ｑ＝ｋ（設定温度−入水温度）×流量、（ｋは係数）で求められる。
【００２０】
また、制御手段１３を、上記給水手段１０のモータ６の作動制御値の決定に際して、予め制御手段１３に内蔵されているＲＯＭやＥＥＰＲＯＭなどの記憶手段に演算プログラムや参照テーブルとして設定されている作動制御値と流量の関係に基づいて決定するように構成するのが好適であり、そうすると作動制御値による給水手段１０の制御にて精度良く流量が制御される。また、それに伴って瞬間式加熱手段７による加熱量を適正に制御して所定の湯温に精度良く制御された洗浄水が確実に得られる。なお、作動制御値と流量の関係を記憶手段に記憶するについて、製造段階で外部流量検出手段を接続して実際の流量を検出し、その検出結果と作動制御値を制御手段１３に入力するようにすると、容易に各トイレ装置毎の特性に応じた関係を設定でき、より精度良く流量を制御できる。
【００２１】
次に、上記のように洗浄開始時に給水手段１０の作動制御値と入水温度検出手段１１にて検出した入水温度と設定温度から瞬間式加熱手段７の通電制御を行った後に、出水温度検出手段１２により出水温度が検出される通常使用状態になると、瞬間式加熱手段７における加熱量と入水温度検出手段１１による検出温度と出水温度検出手段１２による検出温度から給水手段１０による実際の給水流量が求められる。即ち、給水流量Ｆは、Ｆ＝加熱量／｛ｋ（出水温度−入水温度）｝、（ｋは係数）で求めることができる。そして、この給水流量Ｆが所定の給水流量になるように給水手段１０の作動制御値を調整することにより、所定流量に精度良く制御された洗浄水をノズル手段８から噴出させることができる。
【００２２】
また、その際の瞬間式加熱手段７における加熱量は、洗浄開始時と同様に、給水手段１０の作動制御値と検出された入水温度に基づいて決定することができ、簡単な制御によって所定の湯温に精度良く制御された洗浄水を確実に得ることができる。
【００２３】
また、実際の各トイレ装置の瞬間式加熱手段７における加熱量（通電した電力量）と洗浄水の温度上昇値との関係を予め求めておいて、その関係式やテーブルを制御手段１３の内部に設けられたＲＯＭやＥＥＰＲＯＭに記憶しておき、制御手段１３が瞬間式加熱手段７における加熱量と瞬間式加熱手段７の通過前後の温度差から流量を算出する際に、この関係を参照して流量を算出するように構成することにより、流量算出の精度が向上し、さらに正確な流量制御を行うことができる。さらに、上記関係を規定する変数として、流量、室温、入水温度など、熱交換効率を左右する条件をできるだけ網羅しておくのが好適であり、それによって算出する流量の精度を向上できる。
【００２４】
さらに、制御手段１３は、電源電圧検出手段１５により検出した電源電圧に応じて瞬間式加熱手段７の制御値を補正するように構成されており、電源電圧の変動によって瞬間式加熱手段７による加熱量が変動して湯温が変動するのを防止して所定の湯温に精度良く制御された洗浄水を確実に得ることができるとともに流量精度が向上する。
【００２５】
なお、瞬間式加熱手段７における通電による加熱量Ｑは、設定温度と、検出した入水温度及び出水温度と、算出した給水流量Ｆと、設定流量に基づいてＰＩＤ制御しても良く、そうすると所定の湯温にさらに精度良く制御された所定流量の洗浄水を確実に得ることができる。
【００２６】
また、上記実施形態では給水手段１０にポンプ５とそれを駆動するモータ６を備え、モータ６の出力制御によって給水水量を可変するようにした例を示したが、図３に示す本発明の他の実施形態のように、給水圧を水道端末における水圧を利用したり、別途の給水手段を利用することで、給水手段１０にステッピングモータ等を内蔵した流量調整弁１６を備えた構成にすることもでき、このような流量調整弁１６の開度調整によって給水水量を可変すると、確実に再現性のある流量調整ができるとともに、微調整も可能となり、さらに所定の湯温に精度良く制御された洗浄水を確実に得ることができる。
【００２７】
【発明の効果】
本発明のトイレ装置によれば、以上の説明から明らかなように、ノズル手段と給水手段と瞬間式加熱手段と入水温度検出手段と制御手段とを備えたトイレ装置において、制御手段は、給水手段の作動制御値を、瞬間式加熱手段における加熱量と入水温度検出手段による検出温度と出水温度検出手段による検出温度とにより洗浄水の流量を算出してその流量が所定の流量になるように決定し、瞬間式加熱手段における加熱量を、給水手段の作動制御値から推定された洗浄水の流量と、入水温度検出手段による検出温度と、洗浄水の設定温度とにより決定するように構成したので、瞬間式加熱手段における加熱量と加熱前後の温度差に基づいて流量を算出することによって、流量センサを用いない低コストの構成にて正確な流量制御を行うことができ、かつ上記加熱量制御により所定の湯温に精度良く制御された洗浄水が確実に得られる。
【００２８】
また、制御手段を、瞬間式加熱手段の加熱量と入水と出水の検出温度差から流量を算出する際に、予め得られている瞬間式加熱手段における加熱量と温度上昇値との関係を参照するように構成すると、流量算出の精度が向上し、さらに正確な流量制御を行うことができる。
【００２９】
また、電源電圧を検出する電源電圧検出手段を備え、制御手段を、電源電圧に応じて瞬間式加熱手段の制御値を補正するように構成すると、電源電圧の変動によって瞬間式加熱手段による加熱量が変動するのを防止して所定の湯温及び流量に精度良く制御された洗浄水を確実に得ることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態のトイレ装置の概略構成図である。
【図２】同実施形態のトイレ装置の制御装置の構成図である。
【図３】本発明の他の実施形態のトイレ装置の概略構成図である。
【図４】従来例のトイレ装置の概略構成図である。
【図５】同従来例のトイレ装置の制御装置の構成図である。
【符号の説明】
５ポンプ
６モータ
７瞬間式加熱手段
８ノズル手段
１０給水手段
１１入水温度検出手段
１２出水温度検出手段
１３制御手段
１５電源電圧検出手段
１６流量調整弁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a toilet apparatus, and more particularly to a toilet apparatus in which cleaning water is heated by instantaneous heating means and sprayed locally from nozzle means.
[0002]
[Prior art]
As a toilet apparatus having a hot water washing means using a conventional instantaneous heating means, as shown in FIG. 4, water is supplied from a water supply terminal to a solenoid opening / closing valve 23 via a check valve 21 and a constant flow valve 22, and at the time of washing. Washing water supplied to the instantaneous heating means 27 from the electromagnetic opening / closing valve 23 via the vacuum break valve 24, the pump 25, and the flow sensor 26, and heated to a predetermined temperature is jetted toward the local portion by the nozzle means 28. It is configured as follows. 29 is an overflow passage. A water supply means 30 is constituted by the check valve 21 to the pump 25 and the overflow passage 29 described above. On the inlet side of the instantaneous heating means 27, an incoming water temperature detection means 31 comprising a thermistor for detecting the temperature of incoming water, and on the outlet side, an outlet water temperature detection comprising a thermistor for detecting the temperature of the hot water supplied to the nozzle means 28. Means 32 are provided.
[0003]
As shown in FIG. 5, the control device for the toilet apparatus receives the detection signals and setting data signals from the flow sensor 26, the incoming water temperature detecting means 31, the outgoing water temperature detecting means 32, and the setting means 34. Based on these data, the amount of water supplied by the water supply means 30 and the energization control for the instantaneous heating means 27 are performed to supply hot water of a desired temperature and flow rate to the nozzle means 28, and the switching control of the nozzle means 28 is controlled. Configured to do.
[0004]
At the start of cleaning, the heating amount in the instantaneous heating means 27 is calculated based on the flow rate detected by the flow sensor 26, the incoming water temperature detected by the incoming water temperature detecting means 31, and the set hot water temperature, and instantaneous heating is performed. The energization control for the means 27 is performed.
[0005]
During normal use, PID control is performed based on the flow rate detected by the flow sensor 26, the incoming water temperature detected by the incoming water temperature detecting means 31, the outgoing water temperature detected by the outgoing water temperature detecting means 32, and the set temperature. The instantaneous heating means 27 is energized and controlled to a desired hot water temperature.
[0006]
Further, the flow rate control of the hot water sprayed from the nozzle means 28 is performed by controlling the water supply means 30 based on the flow rate detected by the flow rate sensor 26 and the set flow rate.
[0007]
[Problems to be solved by the invention]
However, since the conventional configuration uses the flow sensor 26, there is a problem that the cost increases.
[0008]
In view of the above-described conventional problems, an object of the present invention is to provide a toilet apparatus capable of accurate flow control with a low-cost configuration that does not use a flow sensor.
[0009]
[Means for Solving the Problems]
The toilet device according to the present invention includes a nozzle unit that ejects cleaning water locally, a water supply unit that operates with a set operation control value and supplies the cleaning water toward the nozzle unit, and a cleaning water supplied to the nozzle unit Instantaneous heating means for instantaneously heating the water to the hot water, incoming water temperature detecting means for detecting the temperature of the cleaning water supplied to the instantaneous heating means, and water discharge for detecting the temperature of the cleaning water discharged from the instantaneous heating means a temperature detector, Bei example, the control means and control means for controlling the water supply means and the instantaneous heating means, the operation control value of the water supply means, the temperature detected by the heating amount and the entering-water temperature detecting means at the instant heating means its flow rate was determine to a predetermined flow rate, the heating amount at the moment heating means, was estimated from the operation control value of the water supply means to calculate the flow rate of the washing water by the temperature detected by the water temperature detecting means The flow rate of washing water And the temperature detected by the entering-water temperature detecting means, which is configured to determine by the setting temperature of the washing water, by calculating the flow rate based on the temperature difference before and after heating and the heating amount at the instant heating means, the flow rate at a low cost structure without using a sensor can perform accurate flow control, and washing water accurately controlled to a predetermined hot water temperature by the heating amount control is Ru reliably obtained.
[0010]
In addition, the control means, the actual flow rate detected by the external flow rate detection means temporarily installed in the toilet device during the manufacturing process of each toilet device and the water supply means at that time, the relationship between the operation control value of the water supply means and the set flow rate of the cleaning water It is preferable to store the relationship with the operation control value .
[0011]
In addition, when calculating the flow rate from the heating amount of the instantaneous heating unit and the detected temperature difference between incoming and outgoing water , the control unit refers to the relationship between the heating amount and temperature rise value obtained in advance in the instantaneous heating unit . When configured to do so, the accuracy of flow rate calculation is improved and more accurate flow rate control can be performed.
[0012]
If the power supply voltage detection means for detecting the power supply voltage is provided and the control means is configured to correct the control value of the instantaneous heating means according to the power supply voltage, the amount of heating by the instantaneous heating means due to fluctuations in the power supply voltage It is possible to reliably obtain washing water that is accurately controlled to a predetermined hot water temperature and flow rate.
[0013]
Further, the water supply means may include a pump and a motor for driving the water supply means, and the water supply amount may be varied by output control of the motor, or the water supply means may be provided with a flow rate adjustment valve. The amount of water supply may be varied by adjusting the opening degree.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the toilet apparatus of the present invention will be described with reference to FIGS. 1 and 2.
[0015]
In FIG. 1, water is supplied from a water supply terminal to an electromagnetic on-off valve 3 through a check valve 1 and a constant flow valve 2, and is driven and controlled by a motor 6 from the electromagnetic on-off valve 3 through a vacuum breaker valve 4 during cleaning. The pump 5 supplies water to the instantaneous heating means 7, and the cleaning water heated to a predetermined temperature by the instantaneous heating means 7 is supplied to the nozzle means 8 and sprayed toward the local portion. Yes. 9 is an overflow passage. A water supply means 10 is constituted by the check valve 1 to the pump 5 and the overflow passage 9 described above.
[0016]
The combination of the pump 5 and the motor 6 is generally a combination of a gear pump and a DC servo motor. The voltage control includes phase control using an AC power supply, PWM (pulse width modulation control) using a DC power supply, and PFM (pulse frequency). Modulation control) can be applied. In addition, it is preferable to use a frequency synchronous control motor such as a pulse motor or a synchronous motor in place of the DC servo motor, because the flow rate can be reliably adjusted and fine adjustment can be performed. Moreover, it can replace with the combination of a pump and a motor, and can also use an electromagnetic pump.
[0017]
The instantaneous heating means 7 is configured by a ceramic heater as a hot water heater facing a meandering heat exchange channel. An inlet water temperature detecting means (TsI) 11 comprising a thermistor for detecting the temperature of the washing water is provided on the inlet side of the instantaneous heating means 7, and an outlet water comprising a thermistor for detecting the temperature of the heated washing water is provided on the outlet side. A temperature detecting means (TsO) 12 is provided.
[0018]
As shown in FIG. 2, the control device for the toilet apparatus includes a control means 13 that includes a water temperature detection means 11, a detection signal from the water temperature detection means 12, a setting data signal from the setting means 14, and a power supply voltage detection means. The detection signal from 15 is input, flow control by the water supply means 10 and energization control to the instantaneous heating means 7 are performed based on those data, and hot water at a desired temperature and flow rate is supplied to the nozzle means 8. It is configured to perform switching control of the means 8.
[0019]
A specific control operation at the start of cleaning by the control means 13 will be described. An operation control value corresponding to the set flow rate by the setting means 14 is output from the control means 13 to the motor 6 of the water supply means 10, and the water supply means 10 The corresponding flow rate of water is supplied. Further, the energization control value for the instantaneous heating means 7 is determined based on the temperature detected by the incoming water temperature detecting means 11 and the operation control value of the motor 6 of the water supply means 10, and the instantaneous heating means 7 is energized to wash water. Heating is performed. That is, based on the operation control value of the motor 6 of the water supply means 10 determined according to the set value of the flow rate set by the setting means 14 at the start of cleaning when the temperature detection of the outlet water temperature of the instantaneous heating means 7 cannot be used. Based on the flow rate and the incoming water temperature detected by the incoming water temperature detecting means 11, the energization control for the instantaneous heating means 7 is performed. The heating amount Q by energization in the instantaneous heating means 7 is obtained by Q = k (set temperature−incoming water temperature) × flow rate (k is a coefficient).
[0020]
Further, when determining the operation control value of the motor 6 of the water supply means 10, the control means 13 is previously set as an operation program or a reference table in a storage means such as a ROM or EEPROM built in the control means 13. It is preferable to make a determination based on the relationship between the control value and the flow rate. Then, the flow rate is controlled with high accuracy by the control of the water supply means 10 based on the operation control value. Further, along with this, the amount of heating by the instantaneous heating means 7 is appropriately controlled, and cleaning water accurately controlled to a predetermined hot water temperature can be obtained with certainty. Note that the relationship between the operation control value and the flow rate is stored in the storage unit, the external flow rate detection unit is connected at the manufacturing stage to detect the actual flow rate, and the detection result and the operation control value are input to the control unit 13. Then, the relationship according to the characteristic for each toilet device can be easily set, and the flow rate can be controlled with higher accuracy.
[0021]
Next, after the energization control of the instantaneous heating means 7 is performed from the operation control value of the water supply means 10 and the incoming water temperature detected by the incoming water temperature detection means 11 and the set temperature at the start of washing as described above, the outlet temperature detection means 12, the actual water supply flow rate by the water supply means 10 is calculated from the heating amount in the instantaneous heating means 7, the detection temperature by the incoming water temperature detection means 11, and the detection temperature by the discharge water temperature detection means 12. Desired. That is, the feed water flow rate F can be obtained by F = heating amount / {k (outflow temperature−incoming water temperature)}, where k is a coefficient. Then, by adjusting the operation control value of the water supply means 10 so that the water supply flow rate F becomes a predetermined water supply flow rate, the cleaning water accurately controlled to the predetermined flow rate can be ejected from the nozzle means 8.
[0022]
Further, the heating amount in the instantaneous heating means 7 at that time can be determined based on the operation control value of the water supply means 10 and the detected incoming water temperature in the same manner as at the start of cleaning, and can be determined by simple control. Washing water that is accurately controlled to the hot water temperature can be obtained with certainty.
[0023]
Further, the relationship between the heating amount (the amount of energized power) in the instantaneous heating means 7 of each actual toilet device and the temperature rise value of the cleaning water is obtained in advance, and the relational expression and table are stored inside the control means 13. The control means 13 refers to this relationship when calculating the flow rate from the difference between the heating amount in the instantaneous heating means 7 and the temperature before and after passing through the instantaneous heating means 7. Therefore, the flow rate calculation accuracy is improved, and more accurate flow rate control can be performed. Furthermore, it is preferable to cover as much as possible the conditions that influence the heat exchange efficiency, such as the flow rate, room temperature, and incoming water temperature, as variables that define the above relationship, thereby improving the accuracy of the calculated flow rate.
[0024]
Further, the control means 13 is configured to correct the control value of the instantaneous heating means 7 in accordance with the power supply voltage detected by the power supply voltage detection means 15, and the heating by the instantaneous heating means 7 due to the fluctuation of the power supply voltage. It is possible to prevent the amount of water from fluctuating and the hot water temperature from fluctuating, and to reliably obtain wash water that is accurately controlled to a predetermined hot water temperature and improve the flow rate accuracy.
[0025]
Note that the heating amount Q by energization in the instantaneous heating means 7 may be PID controlled based on the set temperature, the detected incoming and outgoing temperatures, the calculated feed water flow rate F, and the set flow rate. It is possible to reliably obtain a predetermined amount of washing water that is controlled more precisely to the hot water temperature.
[0026]
In the above embodiment, an example is shown in which the water supply means 10 includes the pump 5 and the motor 6 that drives the pump 5 and the water supply amount is varied by the output control of the motor 6, but the present invention shown in FIG. As in the embodiment of the present invention, the water supply pressure is the water pressure at the water supply terminal, or a separate water supply means is used so that the water supply means 10 is provided with a flow rate adjustment valve 16 incorporating a stepping motor or the like. If the amount of feed water is varied by adjusting the opening degree of the flow rate adjusting valve 16 as described above, the flow rate can be reliably and reproducibly adjusted, and fine adjustment is possible. Washing water can be obtained reliably.
[0027]
【The invention's effect】
According to the toilet apparatus of the present invention, as apparent from the above description, in the toilet apparatus provided with the nozzle means, the water supply means, the instantaneous heating means, the incoming water temperature detection means, and the control means, the control means is the water supply means. determine the actuation control value, so that the flow rate to calculate the flow rate of the washing water by the temperature detected by the detected temperature and the water temperature detecting means according to the amount of heating and incoming water temperature detecting means at the instant heating means becomes a predetermined flow rate The amount of heating in the instantaneous heating means is determined by the flow rate of the washing water estimated from the operation control value of the water supply means, the detection temperature by the incoming water temperature detection means, and the set temperature of the washing water Therefore, by calculating the flow rate based on the heating amount in the instantaneous heating means and the temperature difference before and after heating, accurate flow rate control can be performed with a low-cost configuration that does not use a flow sensor. Come, and washing water accurately controlled to a predetermined hot water temperature by the heating amount control is Ru reliably obtained.
[0028]
In addition, when calculating the flow rate from the heating amount of the instantaneous heating unit and the detected temperature difference between incoming and outgoing water , the control unit refers to the relationship between the heating amount and temperature rise value obtained in advance in the instantaneous heating unit . When configured to do so, the accuracy of flow rate calculation is improved and more accurate flow rate control can be performed.
[0029]
If the power supply voltage detection means for detecting the power supply voltage is provided and the control means is configured to correct the control value of the instantaneous heating means according to the power supply voltage, the amount of heating by the instantaneous heating means due to fluctuations in the power supply voltage It is possible to reliably obtain washing water that is accurately controlled to a predetermined hot water temperature and flow rate.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a toilet apparatus according to an embodiment of the present invention.
FIG. 2 is a configuration diagram of a toilet device control device according to the embodiment;
FIG. 3 is a schematic configuration diagram of a toilet apparatus according to another embodiment of the present invention.
FIG. 4 is a schematic configuration diagram of a conventional toilet apparatus.
FIG. 5 is a configuration diagram of a control device for a toilet apparatus according to the conventional example.
[Explanation of symbols]
5 Pump 6 Motor 7 Instantaneous heating means 8 Nozzle means 10 Water supply means 11 Incoming water temperature detecting means 12 Outlet water temperature detecting means 13 Control means 15 Power supply voltage detecting means 16 Flow rate adjusting valve

Claims

洗浄水を局部に噴出するノズル手段と、設定された作動制御値で作動してノズル手段に向けて洗浄水を供給する給水手段と、ノズル手段に供給される洗浄水を瞬間的に温水に加熱する瞬間式加熱手段と、瞬間式加熱手段に供給される洗浄水の温度を検出する入水温度検出手段と、瞬間式加熱手段から出た洗浄水の温度を検出する出水温度検出手段と、給水手段と瞬間式加熱手段を制御する制御手段とを備え、制御手段は、給水手段の作動制御値を、瞬間式加熱手段における加熱量と入水温度検出手段による検出温度と出水温度検出手段による検出温度とにより洗浄水の流量を算出してその流量が所定の流量になるように決定し、瞬間式加熱手段における加熱量を、給水手段の作動制御値から推定された洗浄水の流量と、入水温度検出手段による検出温度と、洗浄水の設定温度とにより決定するように構成したことを特徴とするトイレ装置。Nozzle means for ejecting cleaning water locally, water supply means for operating the set operation control value to supply cleaning water to the nozzle means, and cleaning water supplied to the nozzle means are instantaneously heated to warm water Instantaneous heating means, incoming water temperature detecting means for detecting the temperature of the cleaning water supplied to the instantaneous heating means, outlet temperature detecting means for detecting the temperature of the cleaning water discharged from the instantaneous heating means, and water supply means When e Bei and control means for controlling the instantaneous heating means, control means, the operation control value of the water supply means, the temperature detected by the detected temperature and the water temperature detecting means according to the amount of heating and incoming water temperature detecting means at the instant heating means calculates the flow rate of the washing water by the decide as its flow rate becomes a predetermined flow rate, the heating amount at the moment heating means, and the flow rate of washing water is estimated from the operation control value of the water supply means, the water inlet By temperature detection means Toilet and wherein the detection temperature, by being configured to determine by the setting temperature of the washing water.

制御手段は、給水手段の作動制御値と洗浄水の設定流量との関係を、各トイレ装置の製造過程でトイレ装置に仮設した外部流量検出手段により検出した実際の流量とその時の給水手段の作動制御値との関係を記憶してなることを特徴とする請求項１記載のトイレ装置。 The control means, the actual flow rate detected by the external flow rate detection means temporarily installed in the toilet device during the manufacturing process of each toilet device, and the operation of the water supply device at that time, the relationship between the operation control value of the water supply means and the set flow rate of cleaning water The toilet device according to claim 1 , wherein a relationship with a control value is stored .

制御手段を、瞬間式加熱手段の加熱量と入水と出水の検出温度差から流量を算出する際に、予め得られている瞬間式加熱手段における加熱量と温度上昇値との関係を参照するように構成したことを特徴とする請求項１又は２記載のトイレ装置。When the control means calculates the flow rate from the heating amount of the instantaneous heating means and the detected temperature difference between incoming and outgoing water, it refers to the relationship between the heating amount and the temperature rise value obtained in advance in the instantaneous heating means. The toilet device according to claim 1, wherein the toilet device is configured as described above.

電源電圧を検出する電源電圧検出手段を備え、制御手段を、電源電圧に応じて瞬間式加熱手段の制御値を補正するように構成したことを特徴とする請求項１〜３の何れかに記載のトイレ装置。 The power supply voltage detection means for detecting a power supply voltage is provided, and the control means is configured to correct the control value of the instantaneous heating means according to the power supply voltage. Toilet equipment.

給水手段はポンプとそれを駆動するモータを備え、モータの出力制御によって給水水量を可変するように構成したことを特徴とする請求項１〜４の何れかに記載のトイレ装置。 The toilet apparatus according to any one of claims 1 to 4, wherein the water supply means includes a pump and a motor that drives the pump, and is configured to vary the amount of water supply by output control of the motor.

給水手段は流量調整弁を備え、流量調整弁の開度調整によって給水水量を可変するように構成したことを特徴とする請求項１〜４の何れかに記載のトイレ装置。 The toilet apparatus according to any one of claims 1 to 4, wherein the water supply means includes a flow rate adjustment valve, and is configured to vary the amount of water supply by adjusting the opening of the flow rate adjustment valve.