JP2009204209A - Storage type hot water supply device - Google Patents

Storage type hot water supply device Download PDF

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JP2009204209A
JP2009204209A JP2008045884A JP2008045884A JP2009204209A JP 2009204209 A JP2009204209 A JP 2009204209A JP 2008045884 A JP2008045884 A JP 2008045884A JP 2008045884 A JP2008045884 A JP 2008045884A JP 2009204209 A JP2009204209 A JP 2009204209A
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hot water
boiling
midnight
water storage
predetermined
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Japanese (ja)
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Kenji Okuzawa
賢二 奥澤
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Sanden Corp
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Sanden Corp
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Priority to JP2008045884A priority Critical patent/JP2009204209A/en
Priority to PCT/JP2008/063426 priority patent/WO2009107256A1/en
Publication of JP2009204209A publication Critical patent/JP2009204209A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00Fluid heaters characterised by the use of heat pumps
    • F24H4/02Water heaters
    • F24H4/04Storage heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/10Control of fluid heaters characterised by the purpose of the control
    • F24H15/16Reducing cost using the price of energy, e.g. choosing or switching between different energy sources
    • F24H15/164Reducing cost using the price of energy, e.g. choosing or switching between different energy sources where the price of the electric supply changes with time
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/10Control of fluid heaters characterised by the purpose of the control
    • F24H15/176Improving or maintaining comfort of users
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/10Control of fluid heaters characterised by the purpose of the control
    • F24H15/196Automatically filling bathtubs or pools; Reheating the water in bathtubs or pools
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/20Control of fluid heaters characterised by control inputs
    • F24H15/281Input from user
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/30Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375Control of heat pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/40Control of fluid heaters characterised by the type of controllers
    • F24H15/414Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/421Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • F24H15/429Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage type hot water supply device capable of preventing occurring of hot water shortage in a midnight time zone and considerably improving convenience of users. <P>SOLUTION: The storage type hot water supply device stores boiled water in a hot water storage tank (4) by using a heat pump (2) to use, and carries out normal boiling for systematically boiling the hot water during the midnight time zone according to a boiling level based on a predetermined hot water storage amount in the hot water storage tank and a predetermined hot water storage temperature, usage reboiling for automatically reboiling a predetermined amount of hot water when hot water is used during daytime other than the midnight time zone, and hot water shortage reboiling for automatically reboiling hot water when an amount of remaining hot water in the hot water storage tank is less than a predetermined amount of hot water. When predetermined implementation conditions are satisfied, midnight reboiling is implemented for automatically reboiling a predetermined amount during the midnight time zone. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、貯湯式給湯装置に係り、特に深夜電力を利用して湯を沸かす貯湯式給湯装置に関する。   The present invention relates to a hot water storage type hot water supply device, and more particularly, to a hot water storage type hot water supply device that uses late-night power to boil hot water.

近年、例えば午後11時〜翌朝午前7時までの深夜時間帯の一般に比較的安価な深夜電力を用いて高効率なヒートポンプにより加熱し沸き上げた湯を貯湯タンク内に貯留し、この貯留した湯を使用して給湯や風呂の湯張りや追い焚き等を行うことで省エネルギー化を実現する貯湯式給湯装置がある。
そして、深夜時間帯外の昼間時間帯に湯の沸き上げが行われる場合には、貯湯式給湯装置のユーザに事前に報知することで、当該沸き上げをユーザがリモコン装置により拒否することができる技術が公知である(特許文献1参照)。
特開2007−278596号公報
In recent years, for example, hot water heated and boiled by a high-efficiency heat pump using a relatively inexpensive midnight power in the late-night time period from 11:00 pm to 7:00 am the next morning is stored in a hot water storage tank. There is a hot water storage type hot water supply device that realizes energy saving by performing hot water supply, hot water filling of the bath, reheating, etc.
And when boiling water is performed during the daytime hours outside of the midnight hours, the user can refuse the boiling with the remote control device by informing the user of the hot water storage hot water supply device in advance. The technique is known (see Patent Document 1).
JP 2007-278596 A

ところで、このような給湯装置は、一般に、予め決定された貯湯量や貯湯温度のレベルに基づいて、湯を深夜時間帯に計画的に沸き上げる通常沸き上げと、昼間時間帯に湯が使用された際に当該使用量分の湯を自動的に沸き増しする使用沸き増しなどの機能を備えている。
ここで、使用沸き増しは、昼間時間帯のみに行われ、深夜時間帯には行われないようになっている。なぜなら、使用沸き増しが昼間時間帯に終了し切れずに深夜時間帯にも継続して行われると、深夜時間帯の早い時間帯に沸き上がる早沸き上げ分が発生し、当該早沸き上げ分は翌朝の昼間時間帯まで使用されず、湯の放熱ロスを生じて不経済となるからである。
By the way, such a hot water supply apparatus generally uses normal boiling of hot water in a midnight time zone and hot water in daytime hours based on a predetermined amount of hot water storage or a hot water temperature level. It is equipped with a function such as a use boiling increase that automatically boils up the amount of hot water used at that time.
Here, the increase in use is performed only during the daytime period and not during the midnight time period. This is because if the increase in use is not completed in the daytime period and is continued in the midnight time period, an early boiling point will be generated in the early part of the midnight hour period. This is because it is not used until the next daytime daytime morning, resulting in heat dissipation loss of hot water, which is uneconomical.

また、深夜時間帯に湯が使用された場合には、その使用量分は次回の深夜時間帯に入った時点の通常沸き上げの湯温度、または昼間の使用沸き増しの湯量に反映されるだけである。
従って、ユーザが深夜時間帯に多量の湯を使用する場合には、基本的には貯湯タンク内にある残湯しか使用することができないため、深夜時間帯は昼間時間帯に比して湯切れを生じ易いとの問題がある。
In addition, when hot water is used during midnight hours, the amount used is only reflected in the normal boiling water temperature at the time of entering the next midnight time zone or the amount of hot water used during the daytime. It is.
Therefore, when the user uses a large amount of hot water during the midnight hours, basically only the remaining hot water in the hot water storage tank can be used. There is a problem that it is likely to occur.

そこで、貯湯タンクの残湯量が所定の湯量以下となったときに自動的に湯を沸き増しする湯切れ沸き増しを行うことが考えられるが、このような湯切れ沸き増しは、通常、貯湯タンク内の残湯量がかなり少なくなってから沸き上げが発動されるものであり、いずれにせよ、深夜時間帯は昼間時間帯に比して湯切れの危険性が高くなることは否めない。
しかしながら、上記従来技術では、深夜時間帯に多量の湯が使用されると湯切れの危険性が高くなる点について格別な配慮がなされておらず、貯湯式給湯装置を利用するユーザの利便性の向上には依然として課題が残されている。
In view of this, it is conceivable to carry out hot water boiling that automatically boils hot water when the amount of hot water remaining in the hot water storage tank falls below a predetermined amount of hot water. The boiling is triggered after the amount of remaining hot water in the inside becomes considerably small. In any case, it is undeniable that the danger of running out of hot water is higher in the midnight hours than in the daytime hours.
However, in the above prior art, no special consideration is given to the point that the danger of running out of hot water increases when a large amount of hot water is used in the midnight hours. Challenges remain for improvement.

本発明は、このような課題に鑑みてなされたもので、深夜時間帯における湯切れの発生を防止し、ユーザの利便性を大幅に向上することができる貯湯式給湯装置を提供することを目的とする。   The present invention has been made in view of such a problem, and an object of the present invention is to provide a hot water storage type hot water supply apparatus that can prevent the occurrence of hot water out in the midnight hours and can greatly improve user convenience. And

上記の目的を達成するべく、請求項1記載の貯湯式給湯装置は、ヒートポンプを用いて沸き上げられた湯を貯湯タンクに貯留して使用し、予め決定された貯湯タンクへの貯湯量や貯湯温度に基づく沸き上げレベルに基づいて湯を深夜時間帯に計画的に沸き上げる通常沸き上げ、深夜時間帯外の昼間時間帯に湯が使用された際に所定量の湯を自動的に沸き増しする使用沸き増し、貯湯タンクの残湯量が所定の湯量以下となったときに湯を自動的に沸き増しする湯切れ沸き増しを行う貯湯式給湯装置であって、所定の発動条件を満たしたとき、深夜時間帯に所定量の沸き上げを自動的に行う深夜沸き増しが発動されることを特徴としている。   In order to achieve the above object, a hot water storage type hot water supply apparatus according to claim 1 uses hot water boiled by a heat pump stored in a hot water storage tank, and uses a predetermined amount of hot water stored in the hot water storage tank or hot water storage. Normal boiling of hot water based on the boiling level based on the temperature, and when the hot water is used in the daytime outside of the midnight hours, the specified amount of water is automatically boiled A hot water storage hot water supply system that automatically heats up hot water when the amount of hot water remaining in the hot water storage tank falls below a specified amount of hot water, and when the specified triggering conditions are met Further, it is characterized in that a late-night boiling increase is automatically performed in which a predetermined amount of boiling is automatically performed in the late-night time zone.

また、請求項2記載の発明では、請求項1において、深夜沸き増しを発動するか否かを選択可能な操作入力部を備えることを特徴としている。
更に、請求項3記載の発明では、請求項1または2において、深夜沸き増しは、所定の沸き増し湯量、または所定の沸き増し時間、もしくは貯湯タンクの所定の目盛までの貯湯量を確保するべく発動されることを特徴としている。
Further, the invention according to claim 2 is characterized in that in claim 1, an operation input unit capable of selecting whether or not to activate boiling at night is provided.
Further, in the invention described in claim 3, in claim 1 or 2, in order to secure the amount of hot water up to a predetermined scale of the hot water storage tank, the predetermined amount of hot water in the hot water, or the predetermined boiling time is increased. It is characterized by being activated.

更にまた、請求項4記載の発明では、請求項1乃至3の何れかにおいて、深夜沸き増しは、使用沸き増しが昼間時間帯に終了し切れずに深夜時間帯にも継続して行われたと推定した場合の当使用沸き増しの使用沸き増し残時間を上限として行われることを特徴としている。
また、請求項5記載の発明では、請求項4において、湯切れ沸き増しが発動されたとき、次回の深夜時間帯に入った時点で沸き上げレベルのレベルアップが自動的に行われる自動運転モードを備え、レベルアップが行われたとき、深夜沸き増しは、使用沸き増し残時間に所定の加算時間を加算した時間を上限として行われることを特徴としている。
Furthermore, in the invention of claim 4, in any one of claims 1 to 3, it is said that the increase in the use of midnight was continuously performed in the midnight hours without completing the use increase in the daytime hours. It is characterized in that it is carried out with the use remaining time of the use boiling increase when estimated as the upper limit.
According to a fifth aspect of the present invention, in the fourth aspect of the invention, when the hot water boiling is activated, the automatic operation mode in which the level of the boiling level is automatically increased when the next midnight time zone is entered. When the level-up is performed, the increase in late-night boiling is characterized in that it is performed with the upper limit being a time obtained by adding a predetermined addition time to the remaining time after the increase in use.

更に、請求項6記載の発明では、請求項5において、操作入力部は、自動運転モードのオンオフを選択可能なモード選択画面と、深夜沸き増しを発動するか否かを選択可能な選択部とを備え、選択部は、モード選択画面外に設けられることを特徴としている。   Furthermore, in the invention described in claim 6, in claim 5, the operation input unit includes a mode selection screen capable of selecting on / off of the automatic operation mode, and a selection unit capable of selecting whether or not to activate midnight boiling. The selection unit is provided outside the mode selection screen.

従って、請求項1記載の本発明の貯湯式給湯装置によれば、通常沸き上げ、使用沸き増し、湯切れ沸き増しに加え、所定の発動条件を満たしたとき、深夜時間帯に所定量の沸き上げを自動的に行う深夜沸き増しが発動されることにより、深夜時間帯に多量の湯が使用されたとしても、深夜時間帯にいわば使用沸き増しを行うことができるため、深夜時間帯における湯切れの発生を防止することができ、ユーザの利便性を大幅に向上することができる。   Therefore, according to the hot water storage type hot water supply apparatus of the first aspect of the present invention, when a predetermined triggering condition is satisfied in addition to normal boiling, increased use boiling, increased boiling out of hot water, a predetermined amount of boiling in the midnight time zone. By activating the midnight reheating that automatically raises the temperature, even if a large amount of hot water is used during the midnight hours, it is possible to recharge the hot water during the midnight hours. Cutting can be prevented and user convenience can be greatly improved.

また、請求項2記載の発明によれば、深夜沸き増しを発動するか否かを選択可能な操作入力部を備えることにより、所定の発動条件を満たしたとしても、深夜沸き増しを発動しない選択もできるため、ユーザの利便性を更に向上することができる。
更に、請求項3記載の発明によれば、深夜沸き増しは、所定の沸き増し湯量、または所定の沸き増し時間、もしくは貯湯タンクの所定の目盛までの貯湯量を確保するべく行われることにより、深夜時間帯においても貯湯タンク内の貯湯量を確保して湯切れの発生を確実に防止することができ、ユーザの利便性を確実に向上することができる。
According to the second aspect of the present invention, the operation input unit capable of selecting whether or not to activate the late-night boiling is provided, so that the selection that does not trigger the late-night boiling even if a predetermined triggering condition is satisfied. Therefore, user convenience can be further improved.
Further, according to the invention of claim 3, the midnight boiling increase is performed in order to ensure a predetermined boiling water amount, a predetermined boiling time, or a hot water storage amount up to a predetermined scale of the hot water tank, Even in the midnight hours, the amount of hot water stored in the hot water storage tank can be secured to prevent the occurrence of hot water out, and the convenience for the user can be improved reliably.

更にまた、請求項4記載の発明によれば、深夜沸き増しが使用沸き増し残時間を上限として行われることにより、使用沸き増しが昼間時間帯に終了し切れずに深夜時間帯を迎えたとしても、深夜時間帯にも継続して残りの使用沸き増しを行ったのと同等の効果を得ることができるため、深夜時間帯においても貯湯タンク内の貯湯量を確保して湯切れの発生を確実に防止することができ、ユーザの利便性をより一層確実に向上することができる。   Furthermore, according to the invention of claim 4, it is assumed that the increase in the use of midnight is performed with the remaining use time as the upper limit, so that the increase in use is not completed in the daytime period and the midnight time period is reached. However, since it is possible to obtain the same effect as the remaining use increase in the midnight hours, the amount of hot water in the hot water storage tank can be secured even in the midnight hours to prevent hot water from running out. This can be surely prevented, and the convenience for the user can be improved more reliably.

また、請求項5記載の発明によれば、自動運転モード中に湯切れ沸き増しが発動されてレベルアップが行われたとき、深夜沸き増しが使用沸き増し残時間に所定の加算時間を加算した時間を上限として行われることにより、レベルアップによる沸き増しを当日の深夜時間帯に入った時点で即反映させることができるため、深夜時間帯における湯切れの発生を更に確実に防止することができ、ユーザの利便性を更に向上することができる。   According to the fifth aspect of the present invention, when the hot water boiling increase is activated and the level is increased during the automatic operation mode, the midnight boiling increase adds the predetermined additional time to the remaining use boiling remaining time. By performing the time limit, it is possible to immediately reflect the increase in boiling level as soon as the midnight time zone of the day is entered. The convenience for the user can be further improved.

更に、請求項6記載の発明によれば、操作入力部において、深夜沸き増しを発動するか否かを選択可能な選択部をモード選択画面外に設けることにより、定常的に操作することが想定されるモード選択画面に対し、定常的には操作しないと想定される選択部が簡素な構成にて配置されることにより、ユーザの利便性を更に向上することができる。   Furthermore, according to the invention described in claim 6, it is assumed that the operation input unit is operated steadily by providing a selection unit outside the mode selection screen that can select whether or not to activate the midnight heating. The convenience of the user can be further improved by arranging a selection unit that is assumed not to be operated on a regular basis with a simple configuration on the mode selection screen.

以下、本発明の実施の形態を図面に基づき説明する。
図1には、本発明に係る貯湯式給湯装置の概略構成が示されている。この給湯装置1は、湯水を加熱するヒートポンプ2と、湯水を貯留する貯湯タンク4とから構成されており、ヒートポンプ2により加熱し沸き上げた湯を貯湯タンク4に貯留し、この貯留された湯を使用して、図示しない風呂の湯張り及び追い焚きや、風呂、台所、洗面所、シャワー等の図示しない給湯栓への給湯等を行うものである。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of a hot water storage type hot water supply apparatus according to the present invention. The hot water supply device 1 is composed of a heat pump 2 that heats hot water and a hot water storage tank 4 that stores hot water. The hot water heated by the heat pump 2 is stored in the hot water storage tank 4, and the stored hot water is stored in the hot water storage tank 4. Is used to fill and refill a bath (not shown), hot water supply to a hot water tap (not shown) such as a bath, a kitchen, a washroom, and a shower.

給湯装置1は、ヒートポンプ2の作動を制御する制御装置6を備え、制御装置6はヒートポンプ2を自動で制御するための制御部8と操作入力部10とを有し、操作入力部10は例えば台所や風呂の浴室に設けられ、ユーザが給湯装置1の運転状態の確認や各種設定を行うことができる。
こうして構成される給湯装置1は、例えば午後23時〜翌朝午前7時までの深夜時間帯の一般に比較的安価な深夜電力を用いてヒートポンプ2により加熱し沸き上げた湯を貯湯タンク4内に貯留し、この貯留した湯を使用して上記湯張りや給湯等を行う。
The hot water supply device 1 includes a control device 6 that controls the operation of the heat pump 2, and the control device 6 includes a control unit 8 and an operation input unit 10 for automatically controlling the heat pump 2, and the operation input unit 10 is, for example, It is provided in the bathroom of a kitchen or a bath, and the user can check the operation state of the hot water supply device 1 and perform various settings.
The hot water supply apparatus 1 configured in this manner stores hot water heated and boiled in the hot water storage tank 4 by using the heat pump 2 using, for example, a relatively inexpensive late-night power in the midnight time zone from 23:00 pm to 7:00 am the next morning. Then, using the stored hot water, the hot water filling or hot water supply is performed.

具体的には、制御部8には、貯湯タンク4への貯湯量や貯湯温度に基づく沸き上げレベルを選択可能な図示しない運転テーブルが格納され、給湯装置1は、運転テーブルにおいて予め決定された沸き上げレベルに基づいて湯を深夜時間帯に計画的に沸き上げる通常沸き上げ、深夜時間帯外の昼間時間帯に湯が使用された際に当該使用量分の湯を自動的に沸き増しする使用沸き増し、貯湯タンクの残湯量が所定の湯量以下となったときに湯を自動的に沸き増しする湯切れ沸き増しといった各種運転モードを備えている。   Specifically, the control unit 8 stores an operation table (not shown) that can select a boiling level based on the amount of hot water stored in the hot water storage tank 4 and the hot water temperature, and the hot water supply device 1 is determined in advance in the operation table. Normal boiling of hot water based on the boiling level is planned, and when hot water is used in the daytime outside of the midnight hours, the amount of water used is automatically boiled up. Various operating modes are provided such as the use boiling up and the hot water boiling up automatically when the amount of remaining hot water in the hot water storage tank becomes equal to or less than the predetermined amount of hot water.

また、給湯装置1は、沸き上げレベルを湯の使用実績に応じて自動で判断し、変化させるおまかせ運転モード、及び、予め決められた沸き上げを行う手動運転モードの選択を制御部8にて実施可能に構成されている。そして、これら運転モードの選択は、ユーザが操作入力部10のモード選択画面12にて行うことができ、このようなユーザの操作や制御部8における自動制御により、運転モードが適宜選択、発動されて湯張りや給湯が行われる。   Moreover, the hot water supply apparatus 1 determines automatically the boiling level according to the usage record of hot water, and selects the automatic operation mode for changing and the manual operation mode for performing the predetermined boiling by the control unit 8. It is configured to be executable. The user can select these operation modes on the mode selection screen 12 of the operation input unit 10, and the operation mode is appropriately selected and activated by such user operation or automatic control in the control unit 8. Hot water filling and hot water supply are performed.

ここで、本実施形態の給湯装置1は、所定の発動条件を満たしたとき、深夜時間帯に所定量の沸き上げを自動的に発動する深夜沸き増し運転モードを更に備えている。
当該深夜沸き増し運転モードは、他の運転モードとは異なり、操作入力部10のモード選択画面12とは異なる図示しない選択画面(選択部)により発動させるか否かを選択可能に構成されている。
Here, the hot water supply apparatus 1 of the present embodiment further includes a midnight heating operation mode that automatically activates a predetermined amount of boiling in the midnight time zone when a predetermined activation condition is satisfied.
Unlike the other operation modes, the midnight heating operation mode is configured to be selectable to be activated by a selection screen (selection unit) (not shown) different from the mode selection screen 12 of the operation input unit 10. .

以下、当該深夜沸き増し運転モードについて、例えばユーザが深夜時間帯、深夜時間帯外の昼間時間帯の2時間帯契約を電力会社と結んだ場合の図2、3に示されるタイムスケジュールを参照して説明する。
先ず図2を参照する。前日の深夜開始時刻に行われる学習演算により使用沸き増しは3時間行われる計画となっている。
Hereinafter, with respect to the midnight heating operation mode, for example, refer to the time schedule shown in FIGS. 2 and 3 in the case where the user has signed a two-hour contract with a power company in the midnight time zone and the daytime time zone outside the midnight time zone. I will explain.
Reference is first made to FIG. The use increase is planned to be performed for 3 hours by the learning calculation performed at the midnight start time of the previous day.

ここで、使用沸き増し運転は昼間時間帯にしか行われないため、午後23時に深夜時間帯に入った時点で使用沸き増し運転は停止される。即ち、使用沸き増し運転は使用沸き増し実時間tとなる2時間しか行われず、いわゆる使用沸き増し残時間tは1時間となる。
そこで、予め操作入力部10の操作により深夜沸き増しを行う設定を画面にてオンにして深夜沸き増し運転モードを発動可能にしておくことにより、使用沸き増し時間tが昼間時間帯と深夜時間帯とを跨いで使用沸き増し残時間tが発生した場合には、使用沸き増し残時間tを上限時間tとして深夜時間帯に沸き増しを行う深夜沸き増し運転が発動され、換言すると、昼間時間帯に終了し切れなかった使用沸き増し運転の残りが深夜時間帯にも継続して行われる。
Here, since the use heating increase operation is performed only in the daytime period, the use heating increase operation is stopped at the time of entering the midnight time zone at 23:00 pm. That is, the use boiling increase operation is performed only for 2 hours, which is the actual use time after the use boiling increase, and the so-called use boiling remaining time t L is 1 hour.
Therefore, the setting for performing the midnight heating by operating the operation input unit 10 is turned on in advance to enable the midnight heating increase operation mode, so that the use heating time t can be set to the daytime time zone and the midnight time zone. When the remaining use time t L is generated across the two, the midnight increase operation is performed in which the remaining use time t L is set as the upper limit time t M and the boiling time is increased in the midnight time zone, in other words, The remainder of the use-boosting operation that could not be completed during the daytime hours continues in the midnight hours.

更に図3を参照すると、昼間時間帯に貯湯タンク4内の湯切れが発生し、湯切れ沸き増し運転が発動されたと想定する。この場合に、おまかせ運転モードが選択されていると、深夜時間帯に入った時点で沸き上げレベルのレベルアップが自動的に行われる。
このように、おまかせ運転モードにおいてレベルアップが行われたとき、深夜沸き増し運転は、使用沸き増し残時間tに例えば1時間となる加算時間tを加算した時間を上限時間tとして行われる。
Still referring to FIG. 3, it is assumed that hot water in the hot water storage tank 4 has run out during the daytime, and that the hot water boiling operation has been activated. In this case, if the automatic operation mode is selected, the boiling level is automatically increased at the time of entering the midnight time zone.
As described above, when the level is raised in the automatic operation mode, the late-night boiling-up operation is performed by setting the time obtained by adding the additional time t A that is, for example, 1 hour to the remaining time t L after the use boiling, as the upper limit time t M. Is called.

このように、本実施形態では、通常沸き上げ、使用沸き増し、湯切れ沸き増しに加え、使用沸き増し残時間tが発生したことを発動条件として、深夜時間帯に上限時間tの沸き上げを自動的に行う深夜沸き増しが発動されることにより、深夜時間帯に多量の湯が使用されたとしても、深夜時間帯にいわば使用沸き増しを行うことができるため、深夜時間帯における湯切れの発生を防止することができ、ユーザの利便性を大幅に向上することができる。 As described above, in this embodiment, in addition to normal boiling, increased use boiling, and increased boiling out of hot water, it is assumed that the remaining use time t L has occurred in addition to the boiling time of the upper limit time t M in the midnight time zone. By activating the midnight reheating that automatically raises the temperature, even if a large amount of hot water is used during the midnight hours, it is possible to recharge the hot water during the midnight hours. Cutting can be prevented and user convenience can be greatly improved.

また、深夜沸き増しが使用沸き増し残時間tを上限時間tとして行われることにより、前日使用湯量をもとにレベルアップ、ダウンさせ、使用者の使用実績に応じた最適レベルで運転する学習制御においては、使用沸き増しの予定時間自体をレベルにより変化させるので、残時間を上限とすることで深夜沸き増しも学習対象とすることができる。
更に、おまかせ運転モード中に湯切れ沸き増しが発動されて沸き上げレベルのレベルアップが行われたとき、深夜沸き増しが使用沸き増し残時間tに所定の加算時間tを加算した時間を上限時間tとして行われることにより、レベルアップによる沸き増しを次々回となる翌日ではなく次回となる当日の深夜時間帯に入った時点で即反映させることができるため、深夜時間帯における湯切れの発生を更に確実に防止することができ、ユーザの利便性を更に向上することができる。
In addition, midnight boiling increase is performed with the remaining use time t L as the upper limit time t M , so that the level is raised or lowered based on the amount of hot water used the previous day, and the operation is performed at the optimum level according to the usage record of the user. In the learning control, the scheduled increase in use time itself is changed depending on the level. Therefore, by setting the remaining time as the upper limit, it is possible to set the increase in the midnight boiling as a learning target.
Furthermore, when the hot water boiling increase is activated and the boiling level is raised during the automatic operation mode, the time when the midnight boiling increase increases the use boiling remaining time t L and the predetermined addition time t A is added. by carried out as the upper limit time t M, since it is possible to immediately reflected in the time that has entered the late-night time zone of the day to be a next time instead of the next day which is after next the increased boiling by the level up, the hot water out in the late-night time zone Generation | occurrence | production can be prevented more reliably and a user's convenience can further be improved.

更にまた、深夜沸き増しを発動するか否かを選択可能な選択画面を有する操作入力部10を備えることにより、上記発動条件を満たしたとしても、深夜沸き増しを発動しない選択もできるため、ユーザの利便性を更に向上することができる。
また、操作入力部10において、定常的には操作しないと想定される深夜沸き増しの選択画面を定常的に操作することが想定されるモード選択画面12とは異なる画面として設けることにより、簡易にしてユーザの利便性を高めることができる。
Furthermore, by providing the operation input unit 10 having a selection screen capable of selecting whether or not to activate the midnight heating, the user can select not to activate the midnight heating even if the above-described activation condition is satisfied. The convenience can be further improved.
In addition, the operation input unit 10 can be simplified by providing a selection screen for increasing midnight heating that is assumed not to be operated steadily as a screen different from the mode selection screen 12 that is supposed to be operated steadily. User convenience.

以上で本発明の一実施形態についての説明を終えるが、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々の変更ができるものである。
例えば、上記実施形態では、深夜沸き増しの選択画面をモード選択画面12外に設けているが、この選択画面の代わりにスイッチ(選択部)などを操作入力部10の図示しない基板や制御部8に設けても良く、この場合にもユーザの利便性を向上することができる。
The description of one embodiment of the present invention is finished above, but the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the selection screen for increasing midnight heat is provided outside the mode selection screen 12, but instead of this selection screen, a switch (selection unit) or the like is not shown on the operation input unit 10 or the control unit 8 (not shown). In this case, the convenience of the user can be improved.

また、上記実施形態では、深夜沸き増し運転モードの沸き上げは上限時間tたる沸き増し時間にて決定されるが、沸き増し湯量や、或いは貯湯タンク4の所定の目盛までの貯湯量を確保するべく行うようにしても良く、この場合にも深夜時間帯においても貯湯タンク4内の貯湯量を確保して湯切れの発生を確実に防止することができ、ユーザの利便性を確実に向上することができる。 Further, in the above embodiment, the boiling operation mode increasing boiling-midnight is determined by the upper limit time t M serving additional boiling time, additional boiling hot water and, or ensure the hot water storage amount to a predetermined scale of the hot water storage tank 4 In this case, the amount of hot water stored in the hot water storage tank 4 can be secured to prevent the occurrence of hot water, thereby improving the convenience for the user. can do.

本発明の一実施形態に係る貯湯式給湯装置の概略構成図である。It is a schematic block diagram of the hot water storage type hot water supply apparatus which concerns on one Embodiment of this invention. 図1の制御部において、使用沸き増し残時間のみが発生した場合に発動される深夜沸き増し運転の時間帯を示すタイムスケジュールである。In the control part of FIG. 1, it is a time schedule which shows the time zone of the late-night boiling increase operation | movement activated when only the use boiling remaining time generate | occur | produces. 図1の制御部において、使用沸き増し残時間及びレベルアップが発生した場合に発動される深夜沸き増し運転の時間帯を示すタイムスケジュールである。In the control part of FIG. 1, it is a time schedule which shows the time zone of the midnight heating increase operation | movement activated when the remaining use remaining time and level-up occur.

符号の説明Explanation of symbols

1 貯湯式給湯装置
2 ヒートポンプ
4 貯湯タンク
10 操作入力部
12 モード選択画面
DESCRIPTION OF SYMBOLS 1 Hot water storage type hot water supply apparatus 2 Heat pump 4 Hot water storage tank 10 Operation input part 12 Mode selection screen

Claims (6)

ヒートポンプを用いて沸き上げられた湯を貯湯タンクに貯留して使用し、予め決定された前記貯湯タンクへの貯湯量や貯湯温度に基づく沸き上げレベルに基づいて湯を深夜時間帯に計画的に沸き上げる通常沸き上げ、前記深夜時間帯外の昼間時間帯に湯が使用された際に所定量の湯を自動的に沸き増しする使用沸き増し、前記貯湯タンクの残湯量が所定の湯量以下となったときに湯を自動的に沸き増しする湯切れ沸き増しを行う貯湯式給湯装置であって、
所定の発動条件を満たしたとき、前記深夜時間帯に所定量の沸き上げを自動的に行う深夜沸き増しが発動されることを特徴とする貯湯式給湯装置。
Hot water boiled using a heat pump is stored and used in a hot water storage tank, and the hot water is systematically planned at midnight based on the boiling level based on the predetermined amount of hot water stored in the hot water storage tank and the hot water temperature. Boiling up normal boiling up, when hot water is used in the daytime hours outside the midnight time zone, when a hot water is automatically boiled up, a used hot water is heated up, and the remaining hot water amount in the hot water storage tank is less than a predetermined hot water amount A hot water storage type hot water supply device that reheats hot water when it becomes hot,
A hot water storage type hot water supply apparatus, characterized in that, when a predetermined triggering condition is satisfied, a midnight boiling increase is automatically performed in which a predetermined amount of boiling is automatically performed in the midnight time zone.
前記深夜沸き増しを発動するか否かを選択可能な操作入力部を備えることを特徴とする請求項1に記載の貯湯式給湯装置。   The hot water storage type hot water supply apparatus according to claim 1, further comprising an operation input unit capable of selecting whether or not to activate the late-night boiling. 前記深夜沸き増しは、所定の沸き増し湯量、または所定の沸き増し時間、もしくは前記貯湯タンクの所定の目盛までの貯湯量を確保するべく発動されることを特徴とする請求項1または2に記載の貯湯式給湯装置。   3. The midnight boiling increase is activated to ensure a predetermined amount of boiling water, a predetermined boiling time, or a hot water storage amount up to a predetermined scale of the hot water storage tank. Hot water storage system. 前記深夜沸き増しは、前記使用沸き増しが前記昼間時間帯に終了し切れずに前記深夜時間帯にも継続して行われたと推定した場合の当該使用沸き増しの使用沸き増し残時間を上限として行われることを特徴とする請求項1乃至3の何れかに記載の貯湯式給湯装置。   The above-mentioned increase in use at night is the upper limit of the remaining use increase in use boiling when it is estimated that the use increase has not been completed in the daytime period and is continued in the midnight period. The hot water storage type hot water supply apparatus according to any one of claims 1 to 3, wherein the hot water storage type hot water supply apparatus is performed. 前記湯切れ沸き増しが発動されたとき、次回の前記深夜時間帯に入った時点で前記沸き上げレベルのレベルアップが自動的に行われる自動運転モードを備え、
前記レベルアップが行われたとき、前記深夜沸き増しは、前記使用沸き増し残時間に所定の加算時間を加算した時間を上限として行われることを特徴とする請求項4に記載の貯湯式給湯装置。
When the hot water boiling is activated, an automatic operation mode in which the level of the boiling level is automatically increased when the next midnight time zone is entered,
5. The hot water storage type hot water supply apparatus according to claim 4, wherein, when the level-up is performed, the late-night boiling increase is performed with an upper limit of a time obtained by adding a predetermined addition time to the remaining remaining boiling time for use. .
前記操作入力部は、前記自動運転モードのオンオフを選択可能なモード選択画面と、前記深夜沸き増しを発動するか否かを選択可能な選択部とを備え、
前記選択部は、前記モード選択画面外に設けられることを特徴とする請求項5に記載の貯湯式給湯装置。
The operation input unit includes a mode selection screen capable of selecting on / off of the automatic operation mode, and a selection unit capable of selecting whether or not to activate the midnight heating,
The hot water storage type hot water supply apparatus according to claim 5, wherein the selection unit is provided outside the mode selection screen.
JP2008045884A 2008-02-27 2008-02-27 Storage type hot water supply device Pending JP2009204209A (en)

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