JP4000831B2

JP4000831B2 - Sanitary washing device

Info

Publication number: JP4000831B2
Application number: JP2001352763A
Authority: JP
Inventors: 健実吉永; 昇奥井; 聡川本; 満之古林
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2001-11-19
Filing date: 2001-11-19
Publication date: 2007-10-31
Anticipated expiration: 2021-11-19
Also published as: JP2003156255A

Description

【０００１】
【発明の属する技術分野】
本発明は、衛生洗浄装置の温水タンク、とりわけ空焚き検知の制御手段に関するものである。
【０００２】
【従来の技術】
従来、この種の衛生洗浄装置の温水タンク空焚き検知手段としては、温水タンク内の水位を検出し温水ヒータへの通電の有無を判定するものが知られている。
【０００３】
例えば、図１７に示すように、温水タンク１内の水温を温度検出手段２で検出し、所定の設定温度になるように制御手段３は、温水ヒータ４を制御している。また、設定温度に速やかになるように、設定温度近傍まで温水ヒータ４へ通電を続ける。なお、空焚き検知手段として、温水タンク１内の水位が所定の値以下であれば温水ヒータ４への通電を停止させるフロートスイッチ５を設けている。このフロートスイッチ５にはフロート６が設けられており、フロート６の位置で水位を検出している。
【０００４】
【発明が解決しようとする課題】
しかしながら、前記従来の構成では、温水タンクユニット自体を傾ければフロートスイッチ５が温水タンク１内が空水の場合においても満水であると誤検知し、制御手段３は温水ヒータ４への通電を開始する。温度検出手段２は雰囲気温度しか検知していないために、その雰囲気温度が温水タンク１内水温設定温度になるまで温水ヒータ４への通電は継続する。その間に温水ヒータ４の表面温度は異常上昇し、その熱により温水タンクユニットが焼損するという課題を有していた。本発明は、前記従来の課題を解決するもので、いかなる状況下でも確実に焼損を起こさない衛生洗浄装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
前記従来の課題を解決するために、本発明の衛生洗浄装置は、人体局部を洗浄する温水を貯湯する温水タンクと、前記温水タンク内を温める温水ヒータと、前記温水タンク内の水温を検出する温度検出手段と、前記温水ヒータの熱を前記温度検出手段に熱伝導させる熱伝導手段と、前記温度検出手段の検出温度をもとに前記温水ヒータを制御する制御手段からなり、制御手段は、所定の時間、温水ヒータへの通電開始時の温水ヒータへの通電率を１００％より低くするものである。
【０００６】
これにより、いかなる状態、状況下で温水タンク内が空水であったとしても、温水ヒータの熱を熱伝導手段を介して温度検出手段に伝えられるため、確実に温水ヒータへの通電を遮断することができ、所定の時間、温水ヒータへの通電率を１００％より低くすることで、温水ヒータの表面温度を下げられるため、温水ヒータの輻射熱による温水タンク内部及びその周辺部材の損傷を防止することができる。
【０００７】
【発明の実施の形態】
請求項１に記載の発明は、人体局部を洗浄する温水を貯湯する温水タンクと、温水タンク内を温める温水ヒータと、温水タンク内の水温を検出する温度検出手段と、温水ヒータの熱を温度検出手段に熱伝導させる熱伝導手段と、温度検出手段の検出温度をもとに温水ヒータを制御する制御手段からなり、制御手段は、所定の時間、温水ヒータへの通電開始時の温水ヒータへの通電率を１００％より低くし、前記温度検出手段の温水ヒータ通電開始時の検出値に応じて、前記通電率を可変とすることにより、制御手段において、いかなる状態、状況下においても確実に温水タンク内の空焚きが検出でき、不必要に低い通電率で温水ヒータの通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【０００８】
請求項２に記載の発明は、人体局部を洗浄する温水を貯湯する温水タンクと、前記温水タンク内を温める温水ヒータと、前記温水タンク内の水温を検出する温度検出手段と、前記温水ヒータの熱を前記温度検出手段に熱伝導させる熱伝導手段と、前記温度検出手段の検出温度をもとに前記温水ヒータを制御する制御手段からなり、前記制御手段は、所定の時間、前記温水ヒータへの通電開始時の前記温水ヒータへの通電率を１００％より低くし、前記温度検出手段の温水ヒータ通電開始時の検出値に応じて、前記所定の時間を可変とすることにより、制御手段において、いかなる状態、状況下においても確実に温水タンク内の空焚きが検出でき、不必要に低い通電率で温水ヒータの通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【０００９】
請求項３に記載の発明は、人体局部を洗浄する温水を貯湯する温水タンクと、前記温水タンク内を温める温水ヒータと、前記温水タンク内の水温を検出する温度検出手段と、前記温水ヒータの熱を前記温度検出手段に熱伝導させる熱伝導手段と、衛生洗浄装置周囲の温度を検出する室温検出手段と、前記温度検出手段と室温検出手段の検出温度をもとに前記温水ヒータを制御する制御手段からなり、前記制御手段は、所定の時間、前記温水ヒータへの通電開始時の前記温水ヒータへの通電率を１００％より低くし、前記室温検出手段の温水ヒータ通電開始時の検出値に応じて、前記通電率を可変とすることにより、制御手段において、いかなる状態、状況下においても確実に温水タンク内の空焚きが検出でき、不必要に低い通電率で温水ヒータの通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００１０】
請求項４に記載の発明は、人体局部を洗浄する温水を貯湯する温水タンクと、前記温水タンク内を温める温水ヒータと、前記温水タンク内の水温を検出する温度検出手段と、前記温水ヒータの熱を前記温度検出手段に熱伝導させる熱伝導手段と、衛生洗浄装置周囲の温度を検出する室温検出手段と、前記温度検出手段と室温検出手段の検出温度をもとに前記温水ヒータを制御する制御手段からなり、前記制御手段は、所定の時間、前記温水ヒータへの通電開始時の前記温水ヒータへの通電率を１００％より低くし、前記室温検出手段の温水ヒータ通電開始時の検出値に応じて、前記所定の時間を可変とすることにより、制御手段において、いかなる状態、状況下においても確実に温水タンク内の空焚きが検出でき、不必要に低い通電率で温水ヒータの通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００１１】
【実施例】
以下本発明の実施例について、図面を参照しながら説明する。
【００１２】
（実施例１）
図１は、本発明の実施例１における衛生洗浄装置のブロック図を示すものである。図２は、本発明の実施例１における衛生洗浄装置の温水タンクユニットの部分断面図である。
【００１３】
図１、図２において、１は人体局部の洗浄を行うための洗浄水を貯湯するための温水タンク、２は前記温水タンク内の温水温度を検出するための温度検出手段、４は温水タンク内に配置してある温水ヒータであり、３は温度検出手段２で検出された温水温度に基づき、温水ヒータ３への通電を制御するための制御手段である。ここで、温水ヒータ４の熱の一部は熱伝導手段７を介して温度検出手段２に伝導させる構成となっており、制御手段３は、所定の時間、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低く制御する構成となっている。
【００１４】
尚、本実施例では、温度検出手段２と温水ヒータ４と熱伝導手段７の３部品は温水タンク１内で接触しあっている構成であるが、熱伝導手段７の形状によっては、温水ヒータ４の熱を、温水タンク１外部に設けた熱伝導手段（図示せず）を介して、温度検出手段２に熱伝導させることも可能である。また、熱伝導手段７なしで直接温水ヒータ４と温度検出手段２とを接触させ、熱伝導させる手段も考えられる。
【００１５】
また、本実施例では、制御手段３において、温水ヒータ４への通電開始時の温水ヒータ４への通電率と、通常制御の通電率との２段階で制御するものであるが、温水ヒータ４への通電開始時の温水ヒータ４への通電率は必ずしも一定である必要はなく複数の異なる通電率を組み合わせて制御することも可能である。また、線形・非線形に限らず時々刻々変化させて制御することも考えられ、同等の効果が得られる。
【００１６】
以上のように構成された衛生洗浄装置について、以下その動作、作用を説明する。
【００１７】
制御手段３は、温水タンク１内の水温を温度検出手段２で検出し、所定の設定温度になるよう、温水ヒータ４を制御する。水が温水タンク１内に入っている時は、温水ヒータ４からの熱は温度検出手段２まで伝わる前に、熱伝導手段７から水中に放熱されるため、温度検出手段２は実際の水温のみを検知することとなる。
【００１８】
一方、温水タンク１内の水が抜け、温水タンク１内が空になった場合には、温水ヒータ４からの熱は熱伝導手段７を介して温度検出手段２まで直に伝わるので、温度検出手段２により、即座に高温であると検出でき、制御手段３は温水ヒータ４への通電を遮断する。従って、温水タンク１内が空の状態で衛生洗浄装置本体を傾けて持ったりしたとしても、温水ヒータ４の熱は温度検出手段２まで伝わる構成のため、温度検出手段２が高温となり、制御手段３は温水ヒータ４への通電を遮断するため、温水タンク１が焼損することはない。
【００１９】
次に、図３に温水タンク内が空の時に通電率が１００％より低い通電を行う場合、図４に常に１００％で通電し続けた場合の温水ヒータ表面温度と時間の関係を示す。図３及び図４から、温水タンク１内が空の時に、温水ヒータ４をして１００％で通電した場合には、１００％より低い通電を行う場合に比べ温水ヒータ４の表面温度はより高温となることがわかる。即ち、温水温度と温水ヒータの表面温度の差は通電率に比例して増大する傾向があるため、温水ヒータの通電率を１００％より低くすることにより、温水タンク１内部及び周辺部材に温度的ストレスが加わるのを軽減でき、寿命が短くなったり、故障するといった不具合を防止できる。
【００２０】
従って、本発明によると、制御手段３において、所定の時間、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くすることで、いかなる状態、状況下で温水タンク１内が空であったとしても、温水ヒータ４の熱を熱伝導手段７を介して温度検出手段２に伝えられるため、確実に温水ヒータ４への通電を遮断することが可能となり、通電率を１００とする場合に比べ温水ヒータ４の表面温度を下げられるため、温水ヒータ４の輻射熱による温水タンク１内部及びその周辺部材の損傷を防止することができる。
【００２１】
（実施例２）
次に、本発明の実施例２について図５、６を用いて説明を行う。実施例２において、実施例１と異なる点は、制御手段３を、温水ヒータ４通電開始時の温度検出手段２の検出値に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を可変するようにした点である。本実施例では、温度検出手段２の検出温度が高い場合には、低い場合に比べて通電率を高くしている。
【００２２】
図５に温水ヒータ４通電開始時に温水温度が高い場合、図６に温水ヒータ４通電開始時に温水温度が低い場合の温水ヒータ４表面温度の時間関係を示す。
【００２３】
ここで、温水ヒータ４通電開始時の通電率を固定した場合に、図５の点線で示すように、温水ヒータ４の通電開始時の温度検出手段２の検出値が比較的高い時には、不必要に温水沸き上げ時間がかかってしまのに対し、通電率を高くすることにより、実線で示すように、素早く設定温度に到達することができる。
【００２４】
逆に、温度検出手段２の検出値が比較的低い時には、図６の点線で示すように、低い通電率の後の通常の温度制御において、温水タンク１内の温水温度が設定温度に到達したときの温水ヒータ４の表面温度はある所定の温度Ｔを越てしまうが、通電率を低くすることにより、温水温度が設定温度に達すのに時間を要するものの、温水ヒータ４の表面温度上昇を緩和することができ、温水タンク１内部及びその周辺部材に熱的ストレスを軽減して、故障もしくは損傷を防止できる。
【００２５】
従って、温水ヒータ４通電開始時の温水温度に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を可変する制御手段を備えたので、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出でき、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク１内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００２６】
（実施例３）
次に、本発明の実施例３について図７、８を用いて説明を行う。実施例３において、実施例１と異なる点は、制御手段３を、温水ヒータ４通電開始時の温度検出手段２の検出値に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くする時間を可変するようにした点である。本実施例では、温度検出手段２の検出温度が高い場合には、低い場合に比べて時間を短くしている。
【００２７】
図７に温水ヒータ４通電開始時に温水温度が高い場合、図８に温水ヒータ４通電開始時に温水温度が低い場合の温水ヒータ４表面温度と時間関係を示す。
【００２８】
ここで、温水ヒータ４通電開始時の通電率を１００％より低くする時間を固定した場合に、図７の点線で示すように、温水ヒータ４の通電開始時の温度検出手段２の検出値が比較的高い時には、不必要に温水沸き上げ時間がかかってしまうのに対し、１００％より低い通電時間を短くすることにより、実線で示すように、素早く設定温度に到達することができる。
【００２９】
逆に、温度検出手段２の検出値が比較的低い時には図８の点線で示すように、低い通電率の後の通常の温度制御において、温水タンク１内の温水温度が設定温度に到達したときの温水ヒータ４の表面温度はある所定の温度Ｔを越え越えてしまうが、通電率を１００％より低くする時間を長くすることにより、実線で示すように温水温度が設定温度に達すのに時間を要するものの、温水ヒータ４の表面温度上昇を緩和することができ、温水タンク１内部及びその周辺部材に熱的ストレスを軽減して、故障もしくは損傷を防止できる。
【００３０】
従って、温水ヒータ４通電開始時の温水温度に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くする時間を可変することで、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出でき、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク１内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００３１】
（実施例４）
次に、本は発明の実施例４について図９〜１１を用いて説明を行う。
【００３２】
図９は、本発明の実施例３における衛生洗浄装置のブロック図である。実施例４において、実施例１と異なる点は、図９に示すように、衛生洗浄装置周囲の温度を検出する室温検出手段８を有し、制御手段３を、温水ヒータ４通電開始時の室温検出手段８の検出値に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を可変するようにした点である。本実施例では、室温検出手段８の検出温度が高い場合には、低い場合に比べて通電率を大きくしている。
【００３３】
図１０に温水ヒータ４通電開始時に衛生洗浄装置周辺の温度が高い場合、図１１に温水ヒータ４通電開始時に衛生洗浄装置周辺の温度が低い場合の温水ヒータ４表面温度の時間関係を示す。
【００３４】
ここで、温水ヒータ４の通電開始時に行う通電率を固定した場合、衛生洗浄装置周辺の温度が高い時には、図１０の点線で示すように、不必要に温水沸き上げ時間がかかってしまうのに対して、通電率を大きくすることにより、実線で示すように、短時間で設定温度とすることができる。
【００３５】
逆に、衛生洗浄装置周辺の温度が低い時には、温水ヒータ４や熱伝導手段７などの周辺部材も十分冷えており、温水ヒータ４の熱が熱伝導手段７を介して温度検出手段２に伝わり難いため、図１１の点線で示すように、低い通電率の後の通常の温度制御において、温水タンク１内の温水温度が設定温度に到達したときの温水ヒータ４の表面温度はある所定の温度Ｔを越え越えてしまうが、通電率を低くすることにより、実線で示すように温水温度が設定温度に達すのに時間を要するものの、温水ヒータ４の表面温度上昇を緩和することができ、温水タンク１内部及びその周辺部材に熱的ストレスを軽減して、故障もしくは損傷を防止できる。
【００３６】
従って、温水ヒータ４通電開始時の衛生洗浄装置の周辺温度に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を可変することで、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出でき、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク１内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００３７】
（実施例５）
次に、本は発明の実施例５について図１２〜１３を用いて説明を行う。
【００３８】
実施例４において、実施例４と異なる点は、制御手段３を、温水ヒータ４通電開始時の室温検出手段８の検出値に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くする時間を可変するようにした点である。本実施例では、室温検出手段８の検出温度が高い場合には、低い場合に比べて通電率を１００％より低くする時間を短くしている。
【００３９】
図１２に温水ヒータ４通電開始時に衛生洗浄装置周辺の温度が高い場合、図１３に温水ヒータ４通電開始時に衛生洗浄装置周辺の温度が低い場合の温水ヒータ４表面温度の時間関係を示す。
【００４０】
ここで、温水ヒータ４通電開始時に行う通電率を１００％より低くする時間を固定した場合、衛生洗浄装置周辺の温度が高い時には、図１２の点線で示すように、不必要に温水沸き上げ時間がかかってしまうのに対して、通電率を１００％より低くする時間を短くすることにより実線で示すように、短時間で設定温度とすることができる。
【００４１】
逆に、衛生洗浄装置周辺の温度が低い時には、温水ヒータ４や熱伝導手段７などの周辺部材も十分冷えており、温水ヒータ４の熱が熱伝導手段７を介して温度検出手段２に伝わり難いため、図１３の点線で示すように、低い通電率の後の通常の温度制御において、温水タンク１内の温水温度が設定温度に到達したときの温水ヒータ４の表面温度はある所定の温度Ｔを越え越えてしまうが、通電率を１００％より低くする時間を長くすることにより、実線で示すように温水温度が設定温度に達すのに時間を要するものの、温水ヒータ４の表面温度上昇を緩和することができ、温水タンク１内部及びその周辺部材に熱的ストレスを軽減して、故障もしくは損傷を防止できる。
【００４２】
従って、温水ヒータ４通電開始時の衛生洗浄装置の周辺温度に応じて、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くする時間を可変することで、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出でき、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができる。あるいは、温水タンク１内部及びその周辺部材への熱的ストレスを抑制し、故障もしくは損傷を防止することができる。
【００４３】
（実施例６）
図１４は、本発明の実施例４における衛生洗浄装置のブロック図である。
【００４４】
図１４に示すように、温水タンク１内の温水温度を複数設定できる温水温度設定手段９を有し、制御手段３は、温水温度設定手段９の設定が変化した場合に、所定の時間、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くするものである。
【００４５】
毎回、温水ヒータ４への通電開始時に通電率を１００％より低くすると、不必要に温水の沸き上げ時間が長くなってしまい使用者の使い勝手が悪くなる。
【００４６】
そこで、制御手段３において、温水タンク１内の温水温度設定が変えられたときにのみ、所定の時間、温水ヒータ４への通電率を１００％より低くすることで、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができると共に、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出できる。
【００４７】
（実施例７）
図１５は、本発明の実施例５における衛生洗浄装置のブロック図である。
【００４８】
図１５に示すように、温水ヒータ４の通電を切り設定にすることができる切り設定手段１０を有し、制御手段３は、切り設定手段１０の設定が切りから入りに変化した場合に、所定の時間、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くするものである。
【００４９】
昨今、省エネのニーズから、使用者の意思で温水ヒータ４への通電を行わない機能として、温水温度を切り設定にするものや所定の時間のみ温水ヒータ４への通電を行わないもの（例えば、１０間切りスイッチ）などがある。
【００５０】
実施例６と同様に、毎回、温水ヒータ４への通電開始時に通電率を１００％より低くすると、不必要に温水の沸き上げ時間が長くなってしまい使用者の使い勝手が悪くなる。
【００５１】
そこで、制御手段３において、切り設定手段１０の設定が切りから入りに変化したときにのみ、所定の時間、温水ヒータ４への通電率を１００％より低くすることで、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができると共に、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出できる。
【００５２】
（実施例８）
図１６は、本発明の実施例６における衛生洗浄装置のブロック図である。
【００５３】
図１６に示すように、衛生洗浄装置の異常を検出する異常検出手段１１を有し、制御手段３は、異常検出手段１１によって異常検知され温水ヒータへの通電を遮断した後に、異常が解除された場合に、所定の時間、温水ヒータ４への通電開始時の温水ヒータ４への通電率を１００％より低くするものである。
【００５４】
実施例６・７と同様に、毎回、温水ヒータ４への通電開始時に通電率を１００％より低くすると、不必要に温水の沸き上げ時間が長くなってしまい使用者の使い勝手が悪くなる。
【００５５】
そこで、制御手段３において、衛生洗浄装置の異常を異常検出手段１１で検出した後、衛生洗浄装置の異常が解除されたときに、所定の時間、温水ヒータ４への通電率を１００％より低くすることで、不必要に低い通電率で温水ヒータ４の通電を行うことなく温水の沸き上げ時間を短縮することができると共に、いかなる状態、状況下においても確実に温水タンク１内の空焚きが検出できる。
【００５６】
なお、実施例６〜８においては、通電率を１００％より低く制御するタイミングを、温水温度設定手段の設定が変化した場合と切り設定手段の設定が切りから入りに変化した場合と異常が解除された場合について個々に限定して説明したが、これらの条件を組み合わせることも可能であり、同様の効果を得ることが出来る。
【００５７】
【発明の効果】
以上のように、本発明によれば、所定の時間、温水ヒータへの通電開始時の温水ヒータへの通電率を１００％より低くすることにより、いかなる状態、状況下で温水タンク内が空水であったとしても、温水ヒータの熱を熱伝導手段を介して温度検出手段に伝えられるため、確実に温水ヒータへの通電を遮断することを可能とすることができると共に、所定の時間、温水ヒータへの通電率を１００％より低くすることで、温水ヒータの表面温度を下げられるため、温水ヒータの輻射熱による温水タンク内部及びその周辺部材の損傷を防止することができる。
【図面の簡単な説明】
【図１】本発明の実施例１における衛生洗浄装置のブロック図
【図２】本発明の実施例１における衛生洗浄装置の温水タンクユニットの部分断面図
【図３】本発明の実施例１における通電率が１００％より低い通電を行う場合の温水ヒータ表面温度と時間を示す図
【図４】本発明の実施例１における常に１００％で通電し続けた場合の温水ヒータ表面温度と時間を示す図
【図５】本発明の実施例２における温水ヒータ通電開始時に温水温度が高い場合の温水ヒータ表面温度と時間を示す図
【図６】本発明の実施例２における温水ヒータ通電開始時に温水温度が低い場合の温水ヒータ表面温度と時間を示す図
【図７】本発明の実施例３における温水ヒータ通電開始時に温水温度が高い場合の温水ヒータ表面温度と時間を示す図
【図８】本発明の実施例３における温水ヒータ通電開始時に温水温度が低い場合の温水ヒータ表面温度と時間を示す図
【図９】本発明の実施例４における衛生洗浄装置のブロック図
【図１０】本発明の実施例４における衛生洗浄装置周辺の温度が高い場合の温水ヒータ表面温度と時間を示す図
【図１１】本発明の実施例４における衛生洗浄装置周辺の温度が低い場合の温水ヒータ表面温度と時間を示す図
【図１２】本発明の実施例５における衛生洗浄装置周辺の温度が高い場合の温水ヒータ表面温度と時間を示す図
【図１３】本発明の実施例５における衛生洗浄装置周辺の温度が低い場合の温水ヒータ表面温度と時間を示す図
【図１４】本発明の実施例６における衛生洗浄装置のブロック図
【図１５】本発明の実施例７における衛生洗浄装置のブロック図
【図１６】本発明の実施例８における衛生洗浄装置のブロック図
【図１７】従来の衛生洗浄装置の温水タンクユニット断面概略図
【符号の説明】
１温水タンク
２温度検出手段
３制御手段
４温水ヒータ
７熱伝導手段
８室温検出手段
９温水温度設定手段
１０切り設定手段
１１異常検出手段[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a hot water tank of a sanitary washing device, and more particularly to a control means for detecting airing.
[0002]
[Prior art]
  Conventionally, as a hot water tank emptying detection means of this type of sanitary washing apparatus, one that detects the water level in the hot water tank and determines whether or not the hot water heater is energized is known.
[0003]
  For example, as shown in FIG. 17, the temperature detection means 2 detects the water temperature in the hot water tank 1, and the control means 3 controls the hot water heater 4 so as to reach a predetermined set temperature. Further, the hot water heater 4 is continuously energized to the vicinity of the set temperature so that the set temperature is quickly reached. Note that a float switch 5 for stopping energization of the hot water heater 4 is provided as an emptying detection means if the water level in the hot water tank 1 is not more than a predetermined value. The float switch 5 is provided with a float 6, and the water level is detected at the position of the float 6.
[0004]
[Problems to be solved by the invention]
  However, in the conventional configuration, if the hot water tank unit itself is tilted, the float switch 5 erroneously detects that the hot water tank 1 is full even when the hot water tank 1 is empty, and the control means 3 energizes the hot water heater 4. Start. Since the temperature detection means 2 detects only the atmospheric temperature, the energization of the hot water heater 4 is continued until the atmospheric temperature reaches the set water temperature in the hot water tank 1. In the meantime, the surface temperature of the hot water heater 4 has risen abnormally and the hot water tank unit is burned by the heat. The present invention solves the above-described conventional problems, and an object of the present invention is to provide a sanitary washing device that does not cause burning under any circumstances.
[0005]
[Means for Solving the Problems]
  In order to solve the above-described conventional problems, a sanitary washing device according to the present invention detects a water temperature in a hot water tank for warming a hot water tank for warming hot water for washing a human body part, a hot water heater for warming the hot water tank, and a water temperature in the hot water tank. The temperature detection means, heat conduction means for conducting heat of the hot water heater to the temperature detection means, and control means for controlling the hot water heater based on the temperature detected by the temperature detection means, the control means, The energization rate to the warm water heater at the start of energization to the warm water heater for a predetermined time is made lower than 100%.
[0006]
  As a result, the heat of the hot water heater can be transmitted to the temperature detecting means via the heat conducting means even if the hot water tank is empty water under any conditions and circumstances, so that the energization to the hot water heater is surely cut off. The surface temperature of the hot water heater can be lowered by reducing the energization rate of the hot water heater to less than 100% for a predetermined time, thereby preventing damage to the inside of the hot water tank and its peripheral members due to the radiant heat of the hot water heater. be able to.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
  According to the first aspect of the present invention, there is provided a hot water tank for storing hot water for washing a human body part, a hot water heater for warming the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and the temperature of the hot water heater. The heat conduction means for conducting heat to the detection means and the control means for controlling the hot water heater based on the temperature detected by the temperature detection means, the control means to the hot water heater at the start of energization to the hot water heater for a predetermined time Less than 100%And according to the detected value at the time of the hot water heater energization start of the temperature detection means, by making the energization rate variable,The control means can reliably detect emptying in the hot water tank in any state and situation, and can shorten the boiling time of hot water without energizing the hot water heater at an unnecessarily low energization rate. Alternatively, thermal stress on the inside of the hot water tank and its peripheral members can be suppressed, and failure or damage can be prevented.
[0008]
  Claim2The invention described inA hot water tank for storing hot water for washing human body parts, a hot water heater for heating the inside of the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means And a control means for controlling the hot water heater based on the temperature detected by the temperature detection means. The control means is provided to the hot water heater at the start of energization of the hot water heater for a predetermined time. And the predetermined time is variable according to the detected value at the start of energization of the hot water heater of the temperature detecting means.By doing so, the control means can reliably detect the emptying of the hot water tank in any state and situation, and shorten the hot water boiling time without energizing the hot water heater at an unnecessarily low energization rate. be able to. Alternatively, thermal stress on the inside of the hot water tank and its peripheral members can be suppressed, and failure or damage can be prevented.
[0009]
  Claim3The invention described inA hot water tank for storing hot water for washing human body parts, a hot water heater for heating the inside of the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means Based on the temperature detected by the temperature detecting means and the room temperature detecting means. And a control means for controlling the hot water heater, wherein the control means lowers the energization rate to the hot water heater for less than 100% at the start of energization to the hot water heater for a predetermined time, and the hot water heater of the room temperature detecting means The energization rate is variable according to the detection value at the start of energization.By doing so, the control means can reliably detect the emptying of the hot water tank in any state and situation, and shorten the hot water boiling time without energizing the hot water heater at an unnecessarily low energization rate. be able to. Alternatively, thermal stress on the inside of the hot water tank and its peripheral members can be suppressed, and failure or damage can be prevented.
[0010]
  Claim4The described inventionA hot water tank for storing hot water for washing the human body part, a hot water heater for warming the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means Heat conduction means, room temperature detection means for detecting the temperature around the sanitary washing device, and control means for controlling the hot water heater based on the temperature detected by the temperature detection means and the room temperature detection means. The energization rate to the hot water heater at the start of energization to the hot water heater is lower than 100% for a predetermined time, and the predetermined time is set according to the detected value at the start of energization of the hot water heater by the room temperature detection means. Variable andBy doing so, the control means can reliably detect the emptying of the hot water tank in any state and situation, and shorten the hot water boiling time without energizing the hot water heater at an unnecessarily low energization rate. be able to. Alternatively, thermal stress on the inside of the hot water tank and its peripheral members can be suppressed, and failure or damage can be prevented.
[0011]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings.
[0012]
  Example 1
  FIG. 1 shows a block diagram of a sanitary washing apparatus in Embodiment 1 of the present invention. FIG. 2 is a partial cross-sectional view of the hot water tank unit of the sanitary washing device according to Embodiment 1 of the present invention.
[0013]
  1 and 2, reference numeral 1 denotes a hot water tank for storing washing water for cleaning a human body part, 2 denotes a temperature detection means for detecting the temperature of the hot water in the hot water tank, and 4 denotes an inside of the hot water tank. 3 is a control means for controlling energization to the hot water heater 3 based on the hot water temperature detected by the temperature detection means 2. Here, a part of the heat of the hot water heater 4 is conducted to the temperature detection means 2 via the heat conduction means 7, and the control means 3 is configured to start the energization of the hot water heater 4 for a predetermined time. The power supply rate to the hot water heater 4 is controlled to be lower than 100%.
[0014]
  In this embodiment, the temperature detecting means 2, the hot water heater 4 and the heat conducting means 7 are in contact with each other in the hot water tank 1, but depending on the shape of the heat conducting means 7, the hot water heater It is also possible to conduct the heat of No. 4 to the temperature detection means 2 through a heat conduction means (not shown) provided outside the hot water tank 1. Further, a means for directly conducting the heat transfer by contacting the hot water heater 4 and the temperature detecting means 2 without the heat conducting means 7 is also conceivable.
[0015]
  In the present embodiment, the control means 3 controls the energization rate of the hot water heater 4 at the start of energization of the hot water heater 4 and the energization rate of normal control in two stages. The energization rate to the hot water heater 4 at the start of energization to the heater does not necessarily need to be constant, and can be controlled by combining a plurality of different energization rates. Moreover, it is possible to control not only linear and non-linear but also changing from moment to moment, and the same effect can be obtained.
[0016]
  About the sanitary washing apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
[0017]
  The control means 3 detects the water temperature in the hot water tank 1 with the temperature detection means 2 and controls the hot water heater 4 so as to reach a predetermined set temperature. When water is in the hot water tank 1, the heat from the hot water heater 4 is dissipated into the water from the heat conducting means 7 before being transmitted to the temperature detecting means 2, so that the temperature detecting means 2 only has the actual water temperature. Will be detected.
[0018]
  On the other hand, when the water in the hot water tank 1 is drained and the hot water tank 1 is emptied, the heat from the hot water heater 4 is directly transmitted to the temperature detecting means 2 through the heat conducting means 7, so that the temperature is detected. The means 2 can immediately detect that the temperature is high, and the control means 3 cuts off the power supply to the hot water heater 4. Therefore, even if the sanitary washing device body is tilted and held in the state where the hot water tank 1 is empty, the temperature of the hot water heater 4 is transmitted to the temperature detecting means 2, so that the temperature detecting means 2 becomes high temperature and the control means. 3 cuts off the power supply to the hot water heater 4 so that the hot water tank 1 is not burned out.
[0019]
  Next, FIG. 3 shows the relationship between the surface temperature of the hot water heater and the time when the energization rate is lower than 100% when the hot water tank is empty, and FIG. 4 always keeps energizing at 100%. 3 and 4, when the hot water tank 1 is empty and the hot water heater 4 is turned on and energized at 100%, the surface temperature of the hot water heater 4 is higher than when energizing lower than 100%. It turns out that it becomes. That is, the difference between the hot water temperature and the surface temperature of the hot water heater tends to increase in proportion to the energization rate. Therefore, by making the energization rate of the hot water heater lower than 100%, the temperature inside the hot water tank 1 and peripheral members is increased. It is possible to reduce the application of stress and prevent problems such as shortening the service life and failure.
[0020]
  Therefore, according to the present invention, in the control means 3, the energization rate to the warm water heater 4 at the start of energization to the warm water heater 4 for a predetermined time is made lower than 100%, so that the warm water tank 1 under any condition and situation. Even if the inside is empty, the heat of the hot water heater 4 is transmitted to the temperature detecting means 2 through the heat conducting means 7, so that the energization to the hot water heater 4 can be surely cut off, and the energization rate is reduced. Since the surface temperature of the hot water heater 4 can be lowered as compared to 100, damage to the inside of the hot water tank 1 and its peripheral members due to the radiant heat of the hot water heater 4 can be prevented.
[0021]
  (Example 2)
  Next, Embodiment 2 of the present invention will be described with reference to FIGS. In the second embodiment, the difference from the first embodiment is that the control means 3 is connected to the hot water heater 4 at the start of energization of the hot water heater 4 according to the detection value of the temperature detection means 2 at the start of energization of the hot water heater 4. This is the point that the energization rate is variable. In this embodiment, when the detected temperature of the temperature detecting means 2 is high, the energization rate is set higher than when the temperature is low.
[0022]
  FIG. 5 shows the time relationship of the surface temperature of the hot water heater 4 when the hot water temperature is high at the start of energization of the hot water heater 4, and FIG.
[0023]
  Here, when the energization rate at the start of energization of the hot water heater 4 is fixed, it is unnecessary when the detection value of the temperature detection means 2 at the start of energization of the hot water heater 4 is relatively high, as shown by the dotted line in FIG. It takes a long time to boil hot water, but by increasing the power supply rate, the set temperature can be reached quickly as shown by the solid line..
[0024]
  On the contrary, when the detection value of the temperature detection means 2 is relatively low, as shown by the dotted line in FIG. 6, the hot water temperature in the hot water tank 1 has reached the set temperature in the normal temperature control after the low energization rate. Although the surface temperature of the hot water heater 4 exceeds a predetermined temperature T, it takes time for the hot water temperature to reach the set temperature by reducing the energization rate, but the surface temperature of the hot water heater 4 is increased. The thermal stress can be reduced in the hot water tank 1 and its peripheral members, and failure or damage can be prevented.
[0025]
  Accordingly, the control means for varying the energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 according to the hot water temperature at the start of energization of the hot water heater 4 is ensured in any state and situation. It is possible to detect emptying in the hot water tank 1 and to shorten the boiling time of the hot water without energizing the hot water heater 4 at an unnecessarily low energization rate. Alternatively, thermal stress on the inside of the hot water tank 1 and its peripheral members can be suppressed, and failure or damage can be prevented.
[0026]
  (Example 3)
  Next, Embodiment 3 of the present invention will be described with reference to FIGS. The third embodiment is different from the first embodiment in that the control means 3 is connected to the hot water heater 4 at the start of energization of the hot water heater 4 according to the detection value of the temperature detection means 2 at the start of energization of the hot water heater 4. This is a point in which the time for lowering the energization rate to less than 100% is made variable. In the present embodiment, the time is shortened when the temperature detected by the temperature detecting means 2 is high compared to when the temperature is low.
[0027]
  FIG. 7 shows the time relationship between the surface temperature of the hot water heater 4 and the time when the hot water temperature is low when the hot water heater 4 is energized, and FIG.
[0028]
  Here, when the time during which the energization rate at the start of energization of the hot water heater 4 is set lower than 100% is fixed, as shown by the dotted line in FIG. When the temperature is relatively high, the hot water boiling time is unnecessarily taken. On the other hand, by shortening the energization time lower than 100%, the set temperature can be quickly reached as shown by the solid line.
[0029]
  On the contrary, when the detected value of the temperature detecting means 2 is relatively low, when the temperature of the hot water in the hot water tank 1 reaches the set temperature in the normal temperature control after the low energization rate, as shown by the dotted line in FIG. Although the surface temperature of the hot water heater 4 exceeds a predetermined temperature T, it takes time for the hot water temperature to reach the set temperature as shown by the solid line by lengthening the time during which the energization rate is lower than 100%. However, the rise in the surface temperature of the hot water heater 4 can be mitigated, and thermal stress can be reduced in the hot water tank 1 and its peripheral members to prevent failure or damage.
[0030]
  Therefore, by changing the time during which the energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 is made lower than 100% according to the hot water temperature at the start of energization of the hot water heater 4, under any conditions and circumstances However, it is possible to reliably detect emptying in the hot water tank 1 and shorten the boiling time of the hot water without energizing the hot water heater 4 at an unnecessarily low energization rate. Alternatively, thermal stress on the inside of the hot water tank 1 and its peripheral members can be suppressed, and failure or damage can be prevented.
[0031]
  Example 4
  Next, Embodiment 4 of the present invention will be described with reference to FIGS.
[0032]
  FIG. 9 is a block diagram of a sanitary washing device according to Embodiment 3 of the present invention. As shown in FIG. 9, the fourth embodiment is different from the first embodiment in that it has room temperature detecting means 8 for detecting the temperature around the sanitary washing device, and the control means 3 is set to the room temperature when the hot water heater 4 starts energizing. The energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 is made variable according to the detection value of the detection means 8. In the present embodiment, when the temperature detected by the room temperature detecting means 8 is high, the energization rate is made larger than when the temperature is low.
[0033]
  FIG. 10 shows the time relationship of the surface temperature of the hot water heater 4 when the temperature around the sanitary washing device is high when energization of the hot water heater 4 is started, and FIG.
[0034]
  Here, when the energization rate to be performed at the start of energization of the hot water heater 4 is fixed, when the temperature around the sanitary washing apparatus is high, as shown by the dotted line in FIG. On the other hand, by increasing the energization rate, the set temperature can be set in a short time as shown by the solid line.
[0035]
  Conversely, when the temperature around the sanitary washing device is low, peripheral members such as the warm water heater 4 and the heat conduction means 7 are sufficiently cooled, and the heat of the warm water heater 4 is transmitted to the temperature detection means 2 via the heat conduction means 7. Since it is difficult, as shown by the dotted line in FIG. 11, in normal temperature control after a low energization rate, the surface temperature of the hot water heater 4 when the hot water temperature in the hot water tank 1 reaches a set temperature is a predetermined temperature. Although the temperature exceeds T, by reducing the energization rate, as shown by the solid line, it takes time for the hot water temperature to reach the set temperature, but the rise in the surface temperature of the hot water heater 4 can be mitigated. Thermal stress can be reduced in the tank 1 and its peripheral members to prevent failure or damage.
[0036]
  Therefore, by changing the energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 according to the ambient temperature of the sanitary washing device at the start of energization of the hot water heater 4, it is ensured in any state and situation. It is possible to detect emptying in the hot water tank 1 and to shorten the boiling time of the hot water without energizing the hot water heater 4 at an unnecessarily low energization rate. Alternatively, thermal stress on the inside of the hot water tank 1 and its peripheral members can be suppressed, and failure or damage can be prevented.
[0037]
  (Example 5)
  Next, Embodiment 5 of the present invention will be described with reference to FIGS.
[0038]
  In the fourth embodiment, the difference from the fourth embodiment is that the control means 3 controls the warm water heater 4 at the start of energization to the hot water heater 4 according to the detection value of the room temperature detection means 8 at the start of energization of the hot water heater 4. This is a point in which the time for lowering the energization rate to less than 100% is made variable. In the present embodiment, when the detection temperature of the room temperature detection means 8 is high, the time during which the energization rate is lower than 100% is shorter than when the detection temperature is low.
[0039]
  FIG. 12 shows the time relationship of the surface temperature of the hot water heater 4 when the temperature around the sanitary washing device is high when energization of the hot water heater 4 is started, and FIG. 13 shows the time relationship of the surface temperature of the hot water heater 4 when the temperature around the sanitary washing device is low.
[0040]
  Here, when the time during which the energization rate performed at the start of energization of the hot water heater 4 is fixed is fixed and the temperature around the sanitary washing device is high, as shown by the dotted line in FIG. On the other hand, the set temperature can be set in a short time, as shown by the solid line, by shortening the time during which the energization rate is lower than 100%.
[0041]
  Conversely, when the temperature around the sanitary washing device is low, peripheral members such as the warm water heater 4 and the heat conduction means 7 are sufficiently cooled, and the heat of the warm water heater 4 is transmitted to the temperature detection means 2 via the heat conduction means 7. Since it is difficult, as shown by the dotted line in FIG. 13, in the normal temperature control after the low energization rate, the surface temperature of the hot water heater 4 when the hot water temperature in the hot water tank 1 reaches the set temperature is a predetermined temperature. Although it exceeds T, it takes longer for the hot water temperature to reach the set temperature, as shown by the solid line, by increasing the time for lowering the energization rate to less than 100%, but the surface temperature of the hot water heater 4 is increased. It can be mitigated, and thermal stress can be reduced in the hot water tank 1 and its peripheral members to prevent failure or damage..
[0042]
  Therefore, by changing the time during which the energization rate to the hot water heater 4 is less than 100% at the start of energization to the hot water heater 4 according to the ambient temperature of the sanitary washing device at the start of energization of the hot water heater 4, any state can be obtained. Even under circumstances, it is possible to reliably detect emptying in the hot water tank 1, and to shorten the boiling time of the hot water without energizing the hot water heater 4 at an unnecessarily low energization rate. Alternatively, thermal stress on the inside of the hot water tank 1 and its peripheral members can be suppressed, and failure or damage can be prevented.
[0043]
  (Example 6)
  FIG. 14 is a block diagram of a sanitary washing device in Embodiment 4 of the present invention.
[0044]
  As shown in FIG. 14, it has a hot water temperature setting means 9 that can set a plurality of hot water temperatures in the hot water tank 1, and the control means 3 changes the hot water for a predetermined time when the setting of the hot water temperature setting means 9 changes. The energization rate to the hot water heater 4 at the start of energization to the heater 4 is made lower than 100%.
[0045]
  If the energization rate is lower than 100% at the start of energization of the hot water heater 4 each time, the boiling time of the hot water becomes unnecessarily long, and the user's convenience deteriorates.
[0046]
  Therefore, the control means 3 reduces the energization rate to the hot water heater 4 below 100% for a predetermined time only when the hot water temperature setting in the hot water tank 1 is changed, so that the energization rate is unnecessarily low. While the hot water heater 4 is not energized, it is possible to shorten the boiling time of the hot water, and to reliably detect emptying in the hot water tank 1 in any state and situation.
[0047]
  (Example 7)
  FIG. 15 is a block diagram of a sanitary washing device according to Embodiment 5 of the present invention.
[0048]
  As shown in FIG. 15, it has a turn setting unit 10 that can set the energization of the hot water heater 4 to be turned off, and the control unit 3 performs predetermined processing when the setting of the turn setting unit 10 changes from turning to turning on. During this time, the energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 is made lower than 100%.
[0049]
  Recently, as a function of not energizing the hot water heater 4 at the intention of the user due to energy saving needs, the function of turning off the hot water temperature or setting the energization of the hot water heater 4 only for a predetermined time (for example, 10 cut-off switch).
[0050]
  Similarly to the sixth embodiment, if the energization rate is lower than 100% at the start of energization of the hot water heater 4 each time, the boiling time of the hot water becomes unnecessarily long, and the user's usability deteriorates.
[0051]
  Therefore, in the control unit 3, the energization rate to the hot water heater 4 is set lower than 100% for a predetermined time only when the setting of the cut setting unit 10 is changed from cut to on, so that an unnecessarily low energization rate is obtained. Thus, it is possible to shorten the boiling time of the hot water without energizing the hot water heater 4, and to reliably detect the emptying of the hot water tank 1 in any state and situation.
[0052]
  (Example 8)
  FIG. 16 is a block diagram of a sanitary washing device according to Embodiment 6 of the present invention.
[0053]
  As shown in FIG. 16, it has an abnormality detecting means 11 for detecting an abnormality of the sanitary washing device, and the control means 3 detects the abnormality by the abnormality detecting means 11 and cuts off the power supply to the hot water heater, and then the abnormality is released. In this case, the energization rate to the hot water heater 4 at the start of energization to the hot water heater 4 for a predetermined time is made lower than 100%.
[0054]
  Similarly to Examples 6 and 7, if the energization rate is lower than 100% at the start of energization of the hot water heater 4 every time, the boiling time of the hot water becomes unnecessarily long, and the usability for the user is deteriorated.
[0055]
  Therefore, after the abnormality of the sanitary washing device is detected in the control means 3 by the abnormality detecting means 11, the energization rate to the hot water heater 4 is lower than 100% for a predetermined time when the abnormality of the sanitary washing device is canceled. As a result, it is possible to shorten the boiling time of the hot water without energizing the hot water heater 4 at an unnecessarily low energization rate, and to reliably blow the hot water tank 1 in any state and situation. It can be detected.
[0056]
  In Examples 6 to 8, the timing for controlling the energization rate to be lower than 100% is resolved when the setting of the hot water temperature setting means is changed and when the setting of the turning setting means is changed from turning to turning on. However, these conditions can be combined and the same effect can be obtained.
[0057]
【The invention's effect】
  As described above, according to the present invention, the energization rate to the hot water heater at the start of energization to the hot water heater is lower than 100% for a predetermined time. Even if it is, since the heat of the hot water heater is transmitted to the temperature detecting means via the heat conducting means, it is possible to reliably cut off the energization to the hot water heater, and for a predetermined time, Since the surface temperature of the hot water heater can be lowered by making the energization rate to the heater lower than 100%, damage to the inside of the hot water tank and its peripheral members due to the radiant heat of the hot water heater can be prevented.
[Brief description of the drawings]
FIG. 1 is a block diagram of a sanitary washing device according to Embodiment 1 of the present invention.
FIG. 2 is a partial cross-sectional view of a hot water tank unit of a sanitary washing device in Embodiment 1 of the present invention.
FIG. 3 is a diagram showing a hot water heater surface temperature and time when energization is performed with an energization rate lower than 100% in Example 1 of the present invention.
FIG. 4 is a diagram showing the surface temperature and time of a hot water heater when energization is always continued at 100% in Embodiment 1 of the present invention.
FIG. 5 is a diagram showing a hot water heater surface temperature and time when the hot water temperature is high at the start of energization of the hot water heater in Embodiment 2 of the present invention.
FIG. 6 is a diagram showing a hot water heater surface temperature and time when the hot water temperature is low at the start of energization of the hot water heater in Example 2 of the present invention.
FIG. 7 is a diagram showing a hot water heater surface temperature and time when the hot water temperature is high at the start of energization of the hot water heater in Embodiment 3 of the present invention.
FIG. 8 is a diagram showing the hot water heater surface temperature and time when the hot water temperature is low at the start of energization of the hot water heater in Embodiment 3 of the present invention.
FIG. 9 is a block diagram of a sanitary washing device according to Embodiment 4 of the present invention.
FIG. 10 is a diagram showing the surface temperature and time of the hot water heater when the temperature around the sanitary washing device in Example 4 of the present invention is high.
FIG. 11 is a diagram showing the surface temperature and time of the hot water heater when the temperature around the sanitary washing device in Example 4 of the present invention is low.
FIG. 12 is a diagram showing a hot water heater surface temperature and time when the temperature around the sanitary washing device in Example 5 of the present invention is high
FIG. 13 is a diagram showing the surface temperature and time of a hot water heater when the temperature around the sanitary washing device in Example 5 of the present invention is low.
FIG. 14 is a block diagram of a sanitary washing device according to Embodiment 6 of the present invention.
FIG. 15 is a block diagram of a sanitary washing device according to Embodiment 7 of the present invention.
FIG. 16 is a block diagram of a sanitary washing device in Embodiment 8 of the present invention.
FIG. 17 is a schematic cross-sectional view of a hot water tank unit of a conventional sanitary washing device.
[Explanation of symbols]
  1 Hot water tank
  2 Temperature detection means
  3 Control means
  4 Hot water heater
  7 Heat conduction means
  8 Room temperature detection means
  9 Hot water temperature setting means
  10 Cut setting means
  11 Abnormality detection means

Claims

A hot water tank for storing hot water for washing human body parts, a hot water heater for heating the inside of the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means And a control means for controlling the hot water heater based on the temperature detected by the temperature detection means. The control means is provided to the hot water heater at the start of energization of the hot water heater for a predetermined time. The sanitary washing apparatus is characterized in that the energization rate is made lower than 100% , and the energization rate is made variable according to a detection value at the start of energization of the hot water heater of the temperature detection means .

A hot water tank for storing hot water for washing the human body part, a hot water heater for warming the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means And a control means for controlling the hot water heater based on the temperature detected by the temperature detection means. The control means is provided to the hot water heater at the start of energization of the hot water heater for a predetermined time. The sanitary washing device is characterized in that the predetermined time is made variable according to a detection value at the start of energization of the hot water heater of the temperature detection means.

A hot water tank for storing hot water for washing the human body part, a hot water heater for warming the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means Heat conduction means, room temperature detection means for detecting the temperature around the sanitary washing device, and control means for controlling the hot water heater based on the temperature detected by the temperature detection means and the room temperature detection means. The energization rate to the hot water heater at the start of energization to the hot water heater is lower than 100% for a predetermined time, and the energization rate is variable according to the detection value at the start of energization of the hot water heater by the room temperature detection means A sanitary washing device characterized by

A hot water tank for storing hot water for washing the human body part, a hot water heater for warming the hot water tank, temperature detecting means for detecting the water temperature in the hot water tank, and heat from the hot water heater to the temperature detecting means Heat conduction means, room temperature detection means for detecting the temperature around the sanitary washing device, and control means for controlling the hot water heater based on the temperature detected by the temperature detection means and the room temperature detection means. The energization rate to the hot water heater at the start of energization to the hot water heater is lower than 100% for a predetermined time, and the predetermined time is set according to the detected value at the start of energization of the hot water heater by the room temperature detection means. Sanitary washing device characterized by being variable.