JP5498370B2 - Bath equipment - Google Patents

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JP5498370B2
JP5498370B2 JP2010283254A JP2010283254A JP5498370B2 JP 5498370 B2 JP5498370 B2 JP 5498370B2 JP 2010283254 A JP2010283254 A JP 2010283254A JP 2010283254 A JP2010283254 A JP 2010283254A JP 5498370 B2 JP5498370 B2 JP 5498370B2
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bath
hot water
water
bathtub
circuit
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JP2012132587A (en
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正己 大桃
誠 本間
誠 森田
洋 菊池
正貴 竹原
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Corona Corp
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Corona Corp
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Description

この発明は、浴槽水を循環させて風呂回路の凍結防止運転を行う風呂装置に関するものである。   The present invention relates to a bath apparatus that circulates bathtub water and performs a freeze prevention operation of a bath circuit.

従来からこの種のものに於いては、風呂循環回路の凍結防止運転を浴槽水を循環させることで行うために、浴槽内に湯水が存在するか否かを判定する方策として、風呂循環回路の浴槽水温度が凍結危険温度まで低下したことを検知すると、浴槽内に湯水が存在するか否かを水位センサで検知し、それにより浴槽内に湯水が存在すると判断したら、風呂ポンプを間欠的に駆動させて浴槽水を循環させることにより、この風呂循環回路の凍結を防止するものであった。（例えば、特許文献１）   Conventionally, in this kind of thing, in order to perform the freeze prevention operation of the bath circulation circuit by circulating the bath water, as a measure for determining whether hot water is present in the bathtub, When it is detected that the bath water temperature has dropped to the freezing danger temperature, the water level sensor detects whether hot water is present in the bathtub, and if it is determined that hot water is present in the bathtub, the bath pump is intermittently turned on. The bath circulation circuit was prevented from freezing by being driven to circulate bathtub water. (For example, Patent Document 1)

特許第２８３３２９５号公報Japanese Patent No. 2833295

ところでこの従来のものでは、浴槽内に湯水が存在するか否かを判定する方策として、浴槽内に湯水が存在するか否かを水位センサで検知するものでは、凍結防止運転中は風呂ポンプを回転により風呂配管内の圧力が変化して浴槽内の水位が上下するため、浴槽内に湯水が存在するか否かを検知する水位センサの出力値が変動して浴槽内の水位を正確に検知できないので、一旦浴槽内の湯水を排水した後風呂回路に所定量注水して風呂配管の洗浄を行う自動洗浄運転を凍結防止運転中は行うことができなかった。   By the way, in this conventional system, as a measure for determining whether hot water is present in the bathtub or not, a water level sensor is used to detect whether hot water is present in the bathtub. Since the pressure in the bath piping changes due to rotation and the water level in the bathtub rises and falls, the output value of the water level sensor that detects whether hot water exists in the bathtub fluctuates and the water level in the bathtub is accurately detected Since it was not possible, the automatic washing operation in which a predetermined amount of water was poured into the bath circuit and the bath piping was washed after draining the hot water in the bathtub could not be performed during the freeze prevention operation.

この発明はこの点に着目し上記課題を解決する為、特にその構成を請求項１では、浴槽の湯水を加熱するための風呂熱交換器と、フロースイッチを備えた風呂往き管と、風呂ポンプを備えた風呂戻り管とからなる風呂回路と、給湯を行う給湯回路とを備え、前記給湯回路から湯水を風呂回路に供給する湯張り運転と、浴槽の湯水を風呂ポンプにて風呂回路で循環させて風呂熱交換器で加熱する追い焚き運転と、浴槽の湯水を風呂ポンプにて風呂回路で循環する風呂回路の凍結防止運転と、浴槽の湯水を含め風呂回路内の湯水を排水し、排水後風呂回路内に注水して風呂ポンプにて循環させた後排水する自動洗浄運転とを行う風呂装置に於いて、前記凍結防止運転中に自動洗浄運転の指示があった時、凍結防止運転を継続した状態で浴槽の湯水の排水を行い、フロースイッチの検知が通水有りから通水無しになった時排水が完了したと判断して、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始するものである。   This invention pays attention to this point and solves the above-mentioned problems. In particular, the structure of claim 1 is a bath heat exchanger for heating hot water in a bathtub, a bath pipe provided with a flow switch, and a bath pump. A hot water supply circuit for supplying hot water from the hot water supply circuit to the bath circuit, and hot water in the bathtub is circulated in the bath circuit by a bath pump. Reheating operation that is heated by a bath heat exchanger, freezing operation of the bath circuit that circulates hot and cold water in the bathtub with a bath pump, and draining hot water in the bath circuit including hot water in the bathtub and draining In a bath apparatus that performs automatic washing operation in which water is poured into the post-bath circuit and circulated by a bath pump and then drained, when the automatic washing operation is instructed during the anti-freezing operation, the anti-freezing operation is performed. Hot water in the bathtub in a continuous state When drainage is performed and the flow switch detects from passing water to no passing water, it is determined that drainage has been completed, the bath pump is stopped, freeze prevention operation is terminated, and automatic washing operation is started. is there.

又請求項２に係る風呂装置では、特にその構成を請求項１に於いて、前記フロースイッチの検知が通水有りから通水無しになった時から、その通水無しの検知状態が所定時間継続した時、排水が完了したと判断するものである。   Further, in the bath apparatus according to claim 2, in particular, in the structure according to claim 1, when the detection of the flow switch is changed from the presence of water flow to the absence of water flow, the detection state of no water flow is a predetermined time. When it continues, it is judged that drainage is completed.

又請求項３に係る風呂装置では、特にその構成を請求項１又は請求項２に於いて、前記フロースイッチの検知により排水が完了したと判断した時から所定時間経過した時、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始するものである。   Further, in the bath apparatus according to claim 3, in particular, in the structure of claim 1 or claim 2, the bath pump is stopped when a predetermined time has elapsed since it was determined that drainage was completed by detection of the flow switch. Thus, the freeze prevention operation is terminated and the automatic cleaning operation is started.

この発明の請求項１によれば、凍結防止運転中に自動洗浄運転の指示があった時、凍結防止運転を継続した状態で浴槽の湯水の排水を行い、フロースイッチの検知が通水有りから通水無しになった時排水が完了したと判断して、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始するので、凍結防止運転中で風呂ポンプが動作していて浴槽５の水位が上下していても、浴槽水を含めた風呂回路内の排水が完全に終了したかを判断して凍結防止運転中に自動洗浄止運転を行うことができるものである。   According to the first aspect of the present invention, when an automatic washing operation is instructed during the freeze prevention operation, the hot water in the bathtub is drained in a state where the freeze prevention operation is continued, and the flow switch detects that there is water flow. When drainage is completed, it is determined that drainage is complete, the bath pump is stopped, freeze prevention operation is terminated, and automatic washing operation is started. Even if the water level of 5 is up and down, it is possible to determine whether drainage in the bath circuit including the bath water has been completed and to perform the automatic washing stop operation during the freeze prevention operation.

又、フロースイッチの検知がオンからオフになった時、風呂回路の排水が完全に終了したと判断して風呂ポンプを停止するので、風呂ポンプの空運転時間を短くすることが出来、更に風呂ポンプ内の呼び水の排水量も少なくすることができるので、風呂ポンプの寿命を長くすることができるものである。   Also, when the flow switch detection turns from on to off, it is judged that the drainage of the bath circuit has been completed, and the bath pump is stopped, so that the idle operation time of the bath pump can be shortened, and further the bath Since the amount of priming water in the pump can be reduced, the life of the bath pump can be extended.

又、本発明の請求項２に記載の風呂装置によれば、前記フロースイッチの検知が通水有りから通水無しになった時から、その通水無しの検知状態が所定時間継続した時、排水が完了したと判断するので、フロースイッチの検知が瞬間的に通水有りから通水無しになっても排水を続けるので、より風呂回路の排水を確実に行うことができるものである。   Moreover, according to the bath apparatus of the second aspect of the present invention, when the detection of the flow switch has continued for a predetermined time since the detection of the flow switch has changed from the presence of water flow to the absence of water flow, Since it is determined that the drainage has been completed, the drainage of the bath circuit can be performed more reliably because the drainage of the flow switch is continued even if there is a momentary passage of water and no passage of water.

又、本発明の請求項３に記載の風呂装置によれば、前記フロースイッチの検知により排水が完了したと判断した時から所定時間経過した時、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始するので、フロースイッチの検知により排水が完了したと判断した時にまだ風呂回路内に残水があってもその後の所定時間の風呂ポンプの駆動により完全に排水されるので、より風呂回路の排水を確実に行うことができるものである。   According to a third aspect of the present invention, the bath pump is stopped and the freeze prevention operation is terminated when a predetermined time has elapsed from when it is determined that the drainage is completed by the detection of the flow switch. Since the automatic cleaning operation is started, even if there is still water in the bath circuit when it is determined that the drainage is completed by detecting the flow switch, it is completely drained by the driving of the bath pump for a predetermined time thereafter. The bath circuit can be drained more reliably.

この発明の一実施形態を示す風呂装置の概略図。BRIEF DESCRIPTION OF THE DRAWINGS Schematic of the bath apparatus which shows one Embodiment of this invention. 同凍結防止運転中の自動洗浄運転のフローチャート図。The flowchart figure of the automatic washing | cleaning driving | operation during the freezing prevention driving | operation.

次に、本発明に係る発明の１実施形態を図面に基づいて説明する。
１は時間帯別契約電力の電力単価が安価な深夜時間帯に湯水を沸き上げて貯湯し、この貯湯した湯水を給湯や風呂に用いる風呂装置で、湯水を貯湯する貯湯タンク２を備えた貯湯タンクユニット３と、貯湯タンク２内の湯水を加熱する加熱手段としてのヒートポンプユニット４とを備え、前記貯湯タンク２内の上部には、浴槽５の湯水を加熱するためのステンレス製の蛇管よりなる風呂熱交換器６が配置されていると共に、この風呂熱交換器６には浴槽５内の湯水の水位を検知する水位センサ７とを備えた風呂往き管８および風呂ポンプ９を備えた風呂戻り管１０よりなる風呂回路１１が接続されて浴槽５の湯水が循環可能にされ、浴槽５内の湯水が貯湯タンク２内の高温水により加熱されて保温あるいは追い焚きが行われるものである。 Next, one embodiment of the present invention will be described with reference to the drawings.
1 is a bath device that uses hot water to boil and store hot water in the midnight hours when the unit price of contracted electricity by time is low, and uses the stored hot water for hot water supply or bath. The hot water storage tank has a hot water storage tank 2 for storing hot water. A tank unit 3 and a heat pump unit 4 as a heating means for heating the hot water in the hot water storage tank 2 are provided, and the upper portion in the hot water storage tank 2 is made of a stainless steel tube for heating the hot water in the bathtub 5. A bath heat exchanger 6 is arranged, and the bath heat exchanger 6 has a bath return pipe 8 having a water level sensor 7 for detecting the water level of the hot water in the bathtub 5 and a bath pump 9. A bath circuit 11 made of a pipe 10 is connected so that hot water in the bathtub 5 can be circulated, and the hot water in the bathtub 5 is heated by the high-temperature water in the hot water storage tank 2 so as to be kept warm or reheated.

そして浴槽５への風呂自動運転は、風呂リモコン１２の風呂自動スイッチ１３が操作されると、湯張り弁１４が開成されて貯湯タンク２からの高温水と低温の水道水とを給湯混合弁１５で風呂設定温度に混合し、その混合した温水を給湯回路から風呂回路１１に供給して浴槽５に湯張りし、そして風呂流量カウンタ１６が浴槽５の満量をカウントすることで湯張りを終了すると共に、風呂ポンプ９を駆動して、湯張りされた浴槽水を風呂回路１１を循環させ風呂熱交換器６で設定温度まで追い焚きして風呂自動運転が終了されるものである。   In the automatic bath operation to the bathtub 5, when the bath automatic switch 13 of the bath remote controller 12 is operated, the hot water filling valve 14 is opened and hot water from the hot water storage tank 2 and cold tap water are supplied to the hot water supply mixing valve 15. The bath is mixed with the bath set temperature, and the mixed hot water is supplied from the hot water supply circuit to the bath circuit 11 and filled in the bathtub 5, and the bath flow counter 16 counts the full amount of the bathtub 5 to finish filling. At the same time, the bath pump 9 is driven to circulate the hot-watered bath water through the bath circuit 11 and replenish it to the set temperature by the bath heat exchanger 6 to complete the automatic bath operation.

また、追い焚き運転は、風呂リモコン１２の追い焚きスイッチ１７を押圧すると、風呂ポンプ９が駆動開始し、浴槽５内の浴槽水を風呂往き管８から風呂熱交換器６へと送り、ここで貯湯タンク２内上部の高温水との熱交換で浴槽水を加熱して風呂戻り管１０で浴槽５へ戻し、風呂戻り温度センサ１８が風呂設定温度を検出すれば、風呂ポンプ９を停止して追い焚きは終了となるものである。   Further, in the reheating operation, when the reheating switch 17 of the bath remote controller 12 is pressed, the bath pump 9 starts to be driven, and the bathtub water in the bathtub 5 is sent from the bath outlet pipe 8 to the bath heat exchanger 6. The bath water is heated by heat exchange with the high temperature water in the upper part of the hot water storage tank 2 and returned to the bathtub 5 by the bath return pipe 10. When the bath return temperature sensor 18 detects the bath set temperature, the bath pump 9 is stopped. The chasing ends.

また、風呂回路１１の凍結防止運転は、風呂往き管８の風呂往き温度センサ１９が浴槽水の温度が所定温度以下になったのを検知すると、風呂回路１１の配管が凍結するおそれがあると判断して、水位センサ７で浴槽５内の湯水の水位を検知し、浴槽５内に湯水があると判断すると風呂ポンプ９が駆動開始し、浴槽５内の浴槽水を風呂往き管８から風呂熱交換器６へと送り、ここで貯湯タンク２内上部の高温水との熱交換で浴槽水を加熱して風呂戻り管１０で浴槽５へ戻し、風呂往き温度センサ１９が所定温度以上を検知するか、又は所定時間風呂ポンプ９を駆動したら、風呂ポンプ９を停止して凍結防止運転は終了となるものである。   Further, in the freeze prevention operation of the bath circuit 11, if the bath temperature sensor 19 of the bath tube 8 detects that the temperature of the bath water has become a predetermined temperature or less, the piping of the bath circuit 11 may be frozen. When the water level sensor 7 detects the water level of the hot water in the bathtub 5 and determines that there is hot water in the bathtub 5, the bath pump 9 starts to drive, and the bathtub water in the bathtub 5 is taken from the bath outlet pipe 8. It is sent to the heat exchanger 6 where the bath water is heated by heat exchange with the hot water in the upper part of the hot water storage tank 2 and returned to the bathtub 5 by the bath return pipe 10, and the bath temperature sensor 19 detects a predetermined temperature or higher. If the bath pump 9 is driven for a predetermined time, the bath pump 9 is stopped and the freeze prevention operation is ended.

また、風呂回路１１の自動洗浄運転は、風呂リモコン１２の自動洗浄スイッチ２０を押圧する、又は浴槽５内に湯張りを行ってから所定時間経過した時、風呂回路１１の自動洗浄を行うと判断して、まず水位センサ７にて浴槽５内の湯水の有無を検知し、浴槽５に湯水があると判断すると浴槽５内の湯水の排水を行う。 そして、浴槽５内の湯水の排水が終了すると、風呂回路１１の配管に所定量注水した後、所定時間風呂ポンプ９を駆動して、風呂回路１１の配管内を注水した水を循環させることで自動洗浄を行い、前記所定時間が経過したら風呂ポンプ９を停止して、再度浴槽５内の湯水の排水を行って、風呂回路１１の自動洗浄止運転は終了となるものである。   Further, in the automatic cleaning operation of the bath circuit 11, it is determined that the automatic cleaning of the bath circuit 11 is performed when a predetermined time elapses after the automatic cleaning switch 20 of the bath remote controller 12 is pressed or the bath 5 is filled with hot water. First, the water level sensor 7 detects the presence or absence of hot water in the bathtub 5, and when it is determined that there is hot water in the bathtub 5, the hot water in the bathtub 5 is drained. And when drainage of the hot water in the bathtub 5 is completed, after a predetermined amount of water is poured into the pipe of the bath circuit 11, the bath pump 9 is driven for a predetermined time to circulate the water poured into the pipe of the bath circuit 11. The automatic cleaning is performed, and when the predetermined time has elapsed, the bath pump 9 is stopped, the hot water in the bathtub 5 is drained again, and the automatic cleaning stop operation of the bath circuit 11 is completed.

次に凍結防止運転中に自動洗浄止運転を行う場合について、図２のフローチャート図により説明する。
まず凍結防止運転中かどうか判断し（Ｓ１）、（Ｓ１）で凍結防止運転中と判断した時、次に風呂リモコン１２の自動洗浄スイッチ２０を押圧する、又は浴槽５内に湯張りを行ってから所定時間経過したことにより、風呂回路１１の自動洗浄を行うか判断し（Ｓ２）、自動洗浄を行うと判断した時、浴槽５内の湯水の排水を開始する（Ｓ３）と共に、タイマー（図示せず）の計時を開始する。（Ｓ４） Next, the case where the automatic washing stop operation is performed during the freeze prevention operation will be described with reference to the flowchart of FIG.
First, it is determined whether or not the anti-freezing operation is being performed (S1). When it is determined in (S1) that the anti-freezing operation is being performed, the automatic cleaning switch 20 of the bath remote controller 12 is pressed next, or the bath 5 is filled with hot water. It is determined whether or not the bath circuit 11 is to be automatically cleaned when a predetermined time elapses (S2). When it is determined that automatic cleaning is to be performed, draining of hot water in the bathtub 5 is started (S3) and a timer (FIG. (Not shown). (S4)

それにより、風呂ポンプ９が駆動している状態で浴槽５内の湯水の排水を開始するので、風呂回路１１の配管内の湯水が全て浴槽５から排水される。
そして風呂ポンプ９にて送水した際に水流有無を確認する水流有無検知装置として風呂往き管８に設けられているフロースイッチ２１の検知がオンからオフになったかを判断し（Ｓ５）、フロースイッチ２１の検知がオンからオフになった時、風呂回路１１の排水が完全に終了したと判断して風呂ポンプ９を停止し（Ｓ６）、それにより凍結防止運転を終了して自動洗浄止運転に切り替わり（Ｓ７）、前述した風呂回路１１の自動洗浄運転を開始するものである。（Ｓ８） Thereby, since the drainage of the hot water in the bathtub 5 is started in a state where the bath pump 9 is driven, all the hot water in the pipe of the bath circuit 11 is drained from the bathtub 5.
Then, it is determined whether or not the detection of the flow switch 21 provided in the bath outlet pipe 8 as a water flow presence / absence detecting device for checking the presence / absence of the water flow when the water is supplied by the bath pump 9 is switched from ON to OFF (S5). When the detection of No. 21 is switched from on to off, it is determined that the drainage of the bath circuit 11 is completely completed, and the bath pump 9 is stopped (S6), thereby terminating the freeze prevention operation and the automatic washing stop operation. Switching (S7) is to start the automatic cleaning operation of the bath circuit 11 described above. (S8)

又、（Ｓ５）でフロースイッチ２１の検知がオンからオフにならない時、（Ｓ４）のタイマーの計時が開始されてから所定時間経過したかを判断し（Ｓ９）、所定時間経過していなければ（Ｓ５）に戻り、所定時間経過していたら排水異常と判断して（Ｓ１０）風呂ポンプ９を停止し（Ｓ１１）、風呂リモコン１２に排水異常を表示する者である。（Ｓ１２）
尚、（Ｓ９）の所定時間とは、浴槽５内の浴槽水が満水状態から排水を開始して排水が完全に終了するまでの所要時間である。 Further, when the detection of the flow switch 21 does not turn off from on in (S5), it is determined whether or not a predetermined time has elapsed since the start of the timer in (S4) (S9), and if the predetermined time has not elapsed. Returning to (S5), if the predetermined time has passed, it is determined that the drainage is abnormal (S10), the bath pump 9 is stopped (S11), and the drainage abnormality is displayed on the bath remote controller 12. (S12)
In addition, the predetermined time of (S9) is a required time until the bathtub water in the bathtub 5 starts drainage from the full state and drains completely.

本実施例では、（Ｓ５）でフロースイッチ２１の検知がオンからオフになった時、風呂回路１１の排水が完全に終了したと判断したがこれに限定されず、フロースイッチ２１の検知がオンからオフになってオフの状態が所定時間以上になったら、風呂回路１１の排水が完全に終了したと判断するようにして、より風呂回路１１の排水が確実に行われるようにしてもよいものである。   In this embodiment, when the detection of the flow switch 21 is switched from on to off in (S5), it is determined that the drainage of the bath circuit 11 is completely completed. However, the present invention is not limited to this, and the detection of the flow switch 21 is on. It is determined that the drainage of the bath circuit 11 is completely finished when the state is turned off and the off state has exceeded a predetermined time, so that the drainage of the bath circuit 11 can be performed more reliably. It is.

又本実施例では、（Ｓ６）でフロースイッチ２１の検知がオンからオフになった時、風呂回路１１の排水が完全に終了したと判断して風呂ポンプ９を停止したがこれに限定されず、フロースイッチ２１の検知がオンからオフになって風呂回路１１の排水が完全に終了したと判断してから所定時間経過したら風呂ポンプ９を停止するようにして、より風呂回路１１の排水が確実に行われるようにしてもよいものである。   Further, in this embodiment, when the detection of the flow switch 21 is turned off from on in (S6), it is determined that the drainage of the bath circuit 11 is completely finished, and the bath pump 9 is stopped. However, the present invention is not limited to this. The bath pump 9 is stopped when a predetermined time has elapsed since the detection of the flow switch 21 is turned off from the on-state, and the drainage of the bath circuit 11 is completely completed. It may be made to be performed.

以上のように、凍結防止運転中で風呂ポンプ９が動作していて浴槽５の水位が上下していても、フロースイッチ２１の検知がオンからオフになった時、風呂回路１１の排水が完全に終了したと判断するので、凍結防止運転中に自動洗浄止運転を行う場合でも、浴槽水を含めた風呂回路１１内の排水が完全に終了したかを判断して凍結防止運転中に自動洗浄止運転を行うことができるものである。   As described above, even when the bath pump 9 is operating during the freeze prevention operation and the water level of the bathtub 5 is raised and lowered, when the detection of the flow switch 21 is turned off, the bath circuit 11 is completely drained. Therefore, even when the automatic washing stop operation is performed during the freeze prevention operation, it is judged whether the drainage in the bath circuit 11 including the bath water is completely finished, and the automatic washing is performed during the freeze prevention operation. It can stop operation.

又フロースイッチ２１の検知がオンからオフになった時、風呂回路１１の排水が完全に終了したと判断して風呂ポンプ９を停止するので、風呂ポンプ９の空運転時間を短くすることが出来、更に風呂ポンプ９内の呼び水の排水量も少なくすることができるので、風呂ポンプ９の寿命を長くすることができるものである。   Further, when the detection of the flow switch 21 is switched from on to off, it is determined that the drainage of the bath circuit 11 has been completed, and the bath pump 9 is stopped. Therefore, the idle operation time of the bath pump 9 can be shortened. Furthermore, since the amount of priming water in the bath pump 9 can be reduced, the life of the bath pump 9 can be extended.

５ 浴槽
６ 風呂熱交換器
８ 風呂往き管
９ 風呂ポンプ
１０ 風呂戻り管
１１ 風呂回路
２１ フロースイッチ 5 Bath 6 Bath heat exchanger 8 Bath pipe 9 Bath pump 10 Bath return pipe 11 Bath circuit 21 Flow switch

Claims (3)

浴槽の湯水を加熱するための風呂熱交換器と、フロースイッチを備えた風呂往き管と、風呂ポンプを備えた風呂戻り管とからなる風呂回路と、給湯を行う給湯回路とを備え、前記給湯回路から湯水を風呂回路に供給する湯張り運転と、浴槽の湯水を風呂ポンプにて風呂回路で循環させて風呂熱交換器で加熱する追い焚き運転と、浴槽の湯水を風呂ポンプにて風呂回路で循環する風呂回路の凍結防止運転と、浴槽の湯水を含め風呂回路内の湯水を排水し、排水後風呂回路内に注水して風呂ポンプにて循環させた後排水する自動洗浄運転とを行う風呂装置に於いて、前記凍結防止運転中に自動洗浄運転の指示があった時、凍結防止運転を継続した状態で浴槽の湯水の排水を行い、フロースイッチの検知が通水有りから通水無しになった時排水が完了したと判断して、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始することを特徴とする風呂装置。   A bath heat exchanger comprising a bath heat exchanger for heating hot water in a bathtub, a bath outlet pipe provided with a flow switch, a bath return pipe provided with a bath pump, and a hot water supply circuit for supplying hot water. Hot water filling operation to supply hot water from the circuit to the bath circuit, reheating operation in which the hot water in the bathtub is circulated in the bath circuit by the bath pump and heated by the bath heat exchanger, and the hot water in the bathtub is bath circuit by the bath pump The freezing operation of the bath circuit circulating in the water and the automatic washing operation of draining hot water in the bath circuit including hot water in the bathtub, pouring the water into the bath circuit after draining, circulating it with the bath pump and draining it In the bath equipment, when an instruction for automatic washing operation is given during the anti-freezing operation, the hot water in the bathtub is drained while the anti-freezing operation is continued, and the flow switch detects from passing water to not passing water. The drainage is complete when It is determined that the, stop the bath pump exit antifreezing operation, a bath apparatus characterized by starting the automatic cleaning operation. 前記フロースイッチの検知が通水有りから通水無しになった時から、その通水無しの検知状態が所定時間継続した時、排水が完了したと判断することを特徴とする請求項１記載の風呂装置。   The drainage is determined to be complete when the detection of the flow switch has changed from the presence of water flow to the absence of water flow and the detection state without water flow continues for a predetermined time. Bath equipment. 前記フロースイッチの検知により排水が完了したと判断した時から所定時間経過した時、風呂ポンプを停止して凍結防止運転を終了し、自動洗浄運転を開始することを特徴とする請求項１又は請求項２記載の風呂装置。   The automatic washing operation is started by stopping the bath pump, ending the freeze prevention operation, and starting the automatic washing operation when a predetermined time has elapsed from the time when it is determined that the drainage is completed by the detection of the flow switch. Item 3. A bath apparatus according to item 2.
JP2010283254A 2010-12-20 2010-12-20 Bath equipment Active JP5498370B2 (en)

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