JP2014214982A - Bathroom heating device - Google Patents

Bathroom heating device Download PDF

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JP2014214982A
JP2014214982A JP2013093079A JP2013093079A JP2014214982A JP 2014214982 A JP2014214982 A JP 2014214982A JP 2013093079 A JP2013093079 A JP 2013093079A JP 2013093079 A JP2013093079 A JP 2013093079A JP 2014214982 A JP2014214982 A JP 2014214982A
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bathroom
temperature
heating
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bathroom heating
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JP6149491B2 (en
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栗原 武弘
Takehiro Kurihara
武弘 栗原
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Noritz Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00Other domestic- or space-heating systems

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Abstract

PROBLEM TO BE SOLVED: To provide a bathroom heating device capable of sufficiently performing avoidance of heat shock generation by properly performing operation control of a bathroom heater.SOLUTION: A temperature sensor for detecting an atmospheric temperature in a bathroom is provided at a bathroom remote controller 5 in an upper side vicinity position of a bathtub 4. Operation control of a bathroom heater 6 is executed with an intermediate temperature between the atmospheric temperature in the bathroom before bathroom heating and a bath water temperature in the bathtub being a target atmospheric temperature. In summer and the like, as bathroom heating is not necessary, the bathroom heating is executed when temperature difference between the atmospheric temperature in the bathroom and the bath water temperature is equal to or higher than a fixed value. Before execution of the bathroom heating, inquiry is made to a user whether or not to execute the heating, and the heating is executed at the time of output of an operation signal of permission. The target atmospheric temperature can be set based on a sensible temperature of skin surface calculated by the atmospheric temperature in the bathroom and the bath water temperature.

Description

本発明は、浴室暖房装置に関し、特にヒートショック発生のおそれを回避し得る浴室暖房装置に係る。   The present invention relates to a bathroom heating apparatus, and more particularly to a bathroom heating apparatus that can avoid the risk of heat shock.

従来、特許文献1では、温度検出に基づきヒートショック発生のおそれがある旨をユーザーに対し予め報知することが提案されている。すなわち、浴室外の台所リモコンに設けられた温度センサによる温度検出値と、浴室内の浴室リモコンに設けられた温度センサによる温度検出値との対比において、ヒートショック発生のおそれがあると判定されたとき、その旨を報知することが開示されている。又、特許文献2では、入浴前に、洗い場に対し風呂装置から湯を吐出させることにより、浴室内を暖気することが開示されている。さらに、特許文献3は、入浴者自身が浴槽内に携帯して入浴可能な入浴行動支援装置を提案している。すなわち、この入浴行動支援装置により湯温等を検出し、検出情報に基づき入浴者に対し採るべき入浴行動を音声又は発光により指示することが開示されている。   Conventionally, in Patent Document 1, it is proposed to notify the user in advance that there is a risk of heat shock based on temperature detection. That is, it was determined that there is a risk of heat shock in the comparison between the temperature detection value by the temperature sensor provided in the kitchen remote control outside the bathroom and the temperature detection value by the temperature sensor provided in the bathroom remote control in the bathroom. Sometimes, it is disclosed to notify that effect. Patent Document 2 discloses that the inside of a bathroom is warmed by discharging hot water from a bath apparatus to a washing place before bathing. Furthermore, patent document 3 has proposed the bathing action assistance apparatus which a bather himself can carry in a bathtub and can take a bath. That is, it is disclosed that the bathing behavior support device detects hot water temperature and the like, and instructs the bather to take a bathing behavior based on the detection information by voice or light emission.

特開2011−247551号公報JP2011-247551A 特開2003−106548号公報JP 2003-106548 A 特許第4070371号公報Japanese Patent No. 4070371

しかしながら、ヒートショック発生のおそれをユーザーに報知したとしても、ユーザーは自身でヒートショック発生回避の対策を採らざる得ないことになるし、洗い場に湯を吐出することにより浴室内が暖気されるにしても、どの程度暖気すればよいかの基準が不明確であり、又、吐出された湯はそのまま排水されことからも、的確性の欠如や省エネルギー性に反する事態を招きかねない。さらに、入浴行動の指示を受け得ることになったとしても、ユーザーの快適性向上に結びつくわけではない。   However, even if the user is informed of the possibility of heat shock occurring, the user will be forced to take measures to avoid the occurrence of heat shock, and the bathroom will be warmed by discharging hot water into the washing area. However, the standard of how much warming should be performed is unclear, and the discharged hot water is drained as it is, which may lead to a lack of accuracy and a situation that is contrary to energy saving. Furthermore, even if an instruction for bathing behavior can be received, it does not lead to an improvement in user comfort.

一方、浴室内を温風により暖房又は乾燥させる浴室暖房機を用いて浴室内を暖房することにより、ヒートショック発生のおそれを回避することも考えられる。この場合、浴室暖房機の筐体又は内部に設けられた温度センサの検出値に基づいて動作制御が行われることになるものの、しかしながら、浴室暖房機(図1の浴室暖房機6参照)は、温風を上から下に吹き出すものであるため、通常は、浴室の内壁の天井寄りの位置に壁掛け設置されるか、あるいは、天井面に埋め込み設置されており、浴室暖房機に設けられた温度センサは浴室内の天井寄り位置の室内温度を検出することになる。この場合、天井寄り位置には熱い空気が溜まり易く、浴室暖房機に設けられた温度センサの検出値は浴室内温度として過大なものとなる。このため、浴室暖房機の温度センサの検出値に基づいて浴室暖房制御を行おうとしても、浴室内をヒートショック発生回避のための適切な温度に制御することはできない。   On the other hand, it is also conceivable to avoid the risk of heat shock by heating the bathroom using a bathroom heater that heats or dries the bathroom with warm air. In this case, although the operation control is performed based on the detection value of the temperature sensor provided in the housing or inside of the bathroom heater, however, the bathroom heater (see the bathroom heater 6 in FIG. 1) Since the warm air is blown from the top to the bottom, it is usually installed on the wall near the ceiling of the inner wall of the bathroom, or embedded in the ceiling surface, and the temperature provided in the bathroom heater The sensor detects the room temperature near the ceiling in the bathroom. In this case, hot air tends to accumulate near the ceiling, and the detected value of the temperature sensor provided in the bathroom heater becomes excessive as the temperature in the bathroom. For this reason, even if it is going to perform bathroom heating control based on the detected value of the temperature sensor of a bathroom heater, the inside of a bathroom cannot be controlled to the suitable temperature for avoiding heat shock generation.

本発明は、このような事情に鑑みてなされたものであり、その目的とするところは、浴室暖房機の動作制御を適切に行うことにより、ヒートショック発生回避を十分に行い得る浴室暖房装置を提供することにある。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bathroom heating apparatus that can sufficiently avoid the occurrence of heat shock by appropriately controlling the operation of the bathroom heater. It is to provide.

上記目的を達成するために、本発明では、浴室に設置された浴室リモコンと、浴室内の雰囲気温度を昇温させるための浴室暖房機と、この浴室暖房機の動作制御を行う浴室暖房制御手段とを備えた浴室暖房装置を対象にして、次の特定事項を備えることとした。すなわち、前記浴室リモコンに対し浴室内の雰囲気温度を検出するために設置された温度センサを備え、前記浴室暖房制御手段はこの温度センサの検出温度に基づいて前記浴室暖房機の動作制御を行う構成とした(請求項1)。   In order to achieve the above object, in the present invention, a bathroom remote controller installed in the bathroom, a bathroom heater for raising the ambient temperature in the bathroom, and a bathroom heating control means for controlling the operation of the bathroom heater The following specific items were provided for bathroom heaters equipped with: That is, it comprises a temperature sensor installed to detect the ambient temperature in the bathroom relative to the bathroom remote controller, and the bathroom heating control means controls the operation of the bathroom heater based on the temperature detected by the temperature sensor. (Claim 1).

この発明の場合、浴室リモコンは浴槽内に入浴している入浴者が腕を伸ばせば操作し得る位置、例えば、浴槽の上側近傍位置に設置されているため、この浴室リモコンに設置された温度センサの検出温度は、浴室内にいる入浴者が受ける雰囲気温度を的確に表すことになる。このため、浴室内の天井寄り位置の雰囲気温度を検出して浴室暖房制御に用いる場合と比べ、ヒートショック発生回避のための浴室暖房制御をより的確に実現させ得ることになり、これにより、ヒートショック発生回避を十分に図り得ることになる。   In the case of this invention, the bathroom remote controller is installed at a position where the bather taking a bath in the bathtub can operate if the arm is extended, for example, a position near the upper side of the bathtub. The detected temperature accurately represents the ambient temperature received by the bather in the bathroom. For this reason, compared with the case where the ambient temperature near the ceiling in the bathroom is detected and used for bathroom heating control, bathroom heating control for avoiding the occurrence of heat shock can be more accurately realized. It is possible to sufficiently avoid the occurrence of shock.

本発明の浴室暖房装置において、浴室暖房制御手段として、前記温度センサの検出温度と、浴湯の温度との間の温度差が許容温度差よりも大きいときに、浴室暖房機を動作制御する構成とすることができる(請求項2)。このようにすることにより、夏期のようにヒートショック発生回避を考慮する必要のないときに浴室暖房の実行を省略して、省エネルギー化を図り得ることになる。   In the bathroom heating device of the present invention, the bathroom heating control means is configured to control the operation of the bathroom heater when the temperature difference between the temperature detected by the temperature sensor and the temperature of the bath water is larger than the allowable temperature difference. (Claim 2). By doing so, it is possible to save energy by omitting the execution of bathroom heating when it is not necessary to consider the occurrence of heat shock as in summer.

又、本発明の浴室暖房装置において、浴室暖房制御手段として、浴室と開閉扉を隔てて連なる他の室内空間(例えば脱衣場)の雰囲気温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度と、浴湯の温度との中間値を目標雰囲気温度に設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御する構成とすることができる(請求項3)。このようにすることにより、脱衣場から浴室、浴室から浴槽内への入浴者の移動経路に沿って、段階的に昇温するようにすることができ、これにより、ヒートショック発生回避を十分に図り得ることになる。   Moreover, in the bathroom heating apparatus of the present invention, as the bathroom heating control means, the temperature inside the bathroom detected by the ambient temperature of another indoor space (for example, a dressing room) connecting the bathroom and the open / close door or the temperature sensor before heating the bathroom. An intermediate value between the ambient temperature and the bath water temperature is set as a target ambient temperature, and the bathroom heater is operated and controlled so that the temperature detected by the temperature sensor is raised to the target ambient temperature. (Claim 3). By doing in this way, it is possible to increase the temperature step by step along the movement path of the bather from the dressing room to the bathroom and from the bathroom to the bathtub, thereby sufficiently preventing the occurrence of heat shock. It will be possible.

さらに、本発明の浴室暖房装置において、浴室暖房制御手段として、前記温度センサの検出温度を用いて演算した入浴者の体感温度に基づいて浴室暖房機の動作制御を行う構成とすることができる(請求項4)。人間の皮膚表面からの放熱量は、体外環境が空気か水かによって大きく変動するために、同じ温度であっても体感温度は大きく変わることになる。このため、単に浴湯の温度と浴室内の雰囲気温度と等の温度自体の対比によって浴室暖房制御するよりも、浴室内の空気環境にいる場合と浴槽内の浴湯に浸かった場合の入浴者の体感温度の対比に基づいて浴室暖房制御を行う方が、ヒートショック発生の回避をより的確に、かつ、より適切にヒートショック発生回避のための浴室暖房制御が可能となり、かつ、合理的なものとし得る。   Furthermore, in the bathroom heating device of the present invention, the bathroom heating control means can be configured to control the operation of the bathroom heater based on the temperature sensed by the bather calculated using the temperature detected by the temperature sensor ( Claim 4). The amount of heat released from the human skin surface varies greatly depending on whether the environment outside the body is air or water. Therefore, even if the temperature is the same, the sensible temperature will vary greatly. For this reason, rather than simply controlling the heating of the bathroom by simply comparing the temperature of the bath water and the temperature of the atmosphere in the bathroom, the bather who is in the air environment in the bathroom and bathed in the bath water in the bathtub It is more reasonable to perform bathroom heating control based on the contrast of the perceived temperature of the bathroom, and it is possible to more accurately and more appropriately avoid the occurrence of heat shock. Can be.

この場合の浴室暖房制御手段として、浴室と開閉扉を隔てて連なる他の室内空間(例えば脱衣場)の雰囲気温度を用いて演算した入浴者の体感温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度を用いて演算した入浴者の体感温度と、浴湯の温度を用いて演算した入浴者の体感温度との中間値を目標体感温度に設定し、この目標体感温度を用いて逆算した雰囲気温度を目標雰囲気温度として設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御する構成とすることができる(請求項5)。このようにすることにより、脱衣場から浴室、浴室から浴槽内への入浴者の移動経路に沿って、入浴者の体感温度が段階的に変化するようにすることができ、これにより、ヒートショック発生回避を十分に図り得ることになる。   As the bathroom heating control means in this case, the temperature sensed by the bather calculated using the ambient temperature of another indoor space (for example, a dressing room) connected with the bathroom and the open / close door separated or detected by the temperature sensor before the bathroom heating. An intermediate value between the bather's perceived temperature calculated using the ambient temperature in the bathroom and the bather's perceived temperature calculated using the bath water temperature is set as the target perceived temperature, and this target perceived temperature is used. Then, the ambient temperature calculated backward is set as the target ambient temperature, and the operation of the bathroom heater can be controlled so that the temperature detected by the temperature sensor is raised to the target ambient temperature. By doing so, the temperature of the bather can be changed stepwise along the path of movement of the bather from the dressing room to the bathroom and from the bathroom to the bathtub. It is possible to sufficiently avoid the occurrence.

又、本発明の浴室暖房装置において、浴室暖房制御手段として、浴室暖房機を動作制御して浴室内の暖房を開始する前に、浴室内の暖房を実行するか否かについてユーザーに照会し、ユーザーからの開始確認の操作信号の出力があれば前記暖房を実行する構成とすることができる(請求項6)。このようにすることにより、ヒートショック発生回避のための対策をユーザー自身が行っている場合等には、省エネルギー性を重視して浴室暖房の実行を取りやめることが可能となり、ユーザーの意思に沿う上に省エネルギー化も図り得る。   Also, in the bathroom heating device of the present invention, as a bathroom heating control means, before starting the heating in the bathroom by controlling the operation of the bathroom heater, the user is inquired whether or not to execute the heating in the bathroom, If there is an output of a start confirmation operation signal from the user, the heating can be performed (Claim 6). In this way, when the user himself / herself is taking measures to avoid the occurrence of heat shock, it becomes possible to cancel the execution of bathroom heating with an emphasis on energy conservation, and in line with the user's intention. In addition, energy saving can be achieved.

以上、説明したように、本発明の浴室暖房装置によれば、浴室リモコンは浴槽内に入浴している入浴者が腕を伸ばせば操作し得る位置、例えば、浴槽の上側近傍位置に設置されているため、この浴室リモコンに設置された温度センサの検出温度により、浴室内にいる入浴者が受ける雰囲気温度を的確に表すことができる。このため、浴室内の天井寄り位置の雰囲気温度を検出して浴室暖房制御に用いる場合と比べ、ヒートショック発生回避のための浴室暖房制御をより的確に実現させることができ、これにより、ヒートショック発生回避を十分に図ることができる。   As described above, according to the bathroom heating device of the present invention, the bathroom remote controller is installed at a position where a bather bathing in the bathtub can operate if the arm is extended, for example, at a position near the upper side of the bathtub. Therefore, the ambient temperature received by the bather in the bathroom can be accurately represented by the detected temperature of the temperature sensor installed in the bathroom remote controller. For this reason, compared with the case where the ambient temperature near the ceiling in the bathroom is detected and used for bathroom heating control, the bathroom heating control for avoiding the occurrence of heat shock can be more accurately realized. Occurrence avoidance can be sufficiently achieved.

請求項2の浴室暖房装置によれば、浴室暖房制御手段として、前記温度センサの検出温度と、浴湯の温度との間の温度差が許容温度差よりも大きいときに、浴室暖房機を動作制御して浴室内を暖房する構成とすることにより、夏期のようにヒートショック発生回避を考慮する必要のないときには浴室暖房の実行を省略して、省エネルギー化を図ることができるようになる。   According to the bathroom heating device of claim 2, the bathroom heater is operated as a bathroom heating control means when the temperature difference between the temperature detected by the temperature sensor and the temperature of the bath water is larger than the allowable temperature difference. By controlling and heating the interior of the bathroom, it is possible to save energy by omitting the execution of bathroom heating when it is not necessary to consider the occurrence of heat shock as in summer.

請求項3の浴室暖房装置によれば、浴室暖房制御手段として、浴室と開閉扉を隔てて連なる他の室内空間の雰囲気温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度と、浴湯の温度との中間値を目標雰囲気温度に設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御する構成とすることにより、脱衣場から浴室、浴室から浴槽内への入浴者の移動経路に沿って、段階的に昇温するようにすることができ、これにより、ヒートショック発生回避を十分に図ることができる。   According to the bathroom heating device of claim 3, as the bathroom heating control means, the atmospheric temperature of the other indoor space connected with the bathroom and the door open or closed, or the atmospheric temperature in the bathroom detected by the temperature sensor before the bathroom heating, By setting the intermediate value of the bath water temperature to the target ambient temperature and controlling the operation of the bathroom heater so that the temperature detected by the temperature sensor is raised to the target ambient temperature, The temperature can be raised stepwise along the bathroom and the movement path of the bather from the bathroom to the bathtub, thereby sufficiently avoiding the occurrence of heat shock.

請求項4の浴室暖房装置によれば、浴室暖房制御手段として、前記温度センサの検出温度を用いて演算した入浴者の体感温度に基づいて浴室暖房機の動作制御を行う構成とすることにより、人間の皮膚表面からの放熱量は、体外環境が空気か水かによって大きく変動して、同じ温度であっても体感温度は大きく変わることになるという特有の特性を考慮した適切なヒートショック発生回避を行うことができるようになる。すなわち、単に浴湯の温度と浴室内の雰囲気温度と等の温度自体の対比によって浴室暖房制御するよりも、浴室内の空気環境にいる場合と浴槽内の浴湯に浸かった場合の入浴者の体感温度の対比に基づいて浴室暖房制御を行う方が、ヒートショック発生の回避をより的確に、かつ、より適切にヒートショック発生回避のための浴室暖房制御を行うことができる。   According to the bathroom heating device of claim 4, as the bathroom heating control means, the operation of the bathroom heater is controlled based on the temperature sensed by the bather calculated using the temperature detected by the temperature sensor. The amount of heat released from the human skin surface varies greatly depending on whether the external environment is air or water, and appropriate heat shock generation is avoided, taking into account the unique characteristics that the sensory temperature will vary greatly even at the same temperature. Will be able to do. That is, rather than simply controlling the heating of the bathroom by simply comparing the temperature of the bath water and the temperature of the atmosphere in the bathroom, the bather who is in the air environment in the bathroom or bathed in the bath water in the bathtub The bathroom heating control for avoiding the occurrence of the heat shock can be performed more appropriately and more appropriately and the bathroom heating control for avoiding the occurrence of the heat shock can be performed more appropriately by performing the bathroom heating control based on the comparison of the sensed temperature.

請求項5の浴室暖房装置によれば、浴室暖房制御手段として、浴室と開閉扉を隔てて連なる他の室内空間の雰囲気温度を用いて演算した入浴者の体感温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度を用いて演算した入浴者の体感温度と、浴湯の温度を用いて演算した入浴者の体感温度との中間値を目標体感温度に設定し、この目標体感温度を用いて逆算した雰囲気温度を目標雰囲気温度として設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御する構成とすることにより、脱衣場から浴室、浴室から浴槽内への入浴者の移動経路に沿って、入浴者の体感温度が段階的に変化するようにすることができ、これにより、ヒートショック発生回避を十分に図ることができるようになる。   According to the bathroom heating apparatus of claim 5, as a bathroom heating control means, a bather's perceived temperature calculated using an ambient temperature of another indoor space that is connected with the bathroom and the open / close door separated, or the temperature sensor before the bathroom heating. An intermediate value between the bather's perceived temperature calculated using the bath's detected ambient temperature and the bather's perceived temperature calculated using the bath water temperature is set as the target perceived temperature. By setting the ambient temperature calculated backward using the temperature as the target ambient temperature and controlling the operation of the bathroom heater so that the temperature detected by the temperature sensor is raised to the target ambient temperature, The bather's perceived temperature can be changed stepwise along the path of the bather's movement from the bathroom into the bathtub, thereby sufficiently avoiding the occurrence of heat shock. It becomes so that.

請求項6の浴室暖房装置によれば、浴室暖房制御手段として、浴室暖房機を動作制御して浴室内の暖房を開始する前に、浴室内の暖房を実行するか否かについてユーザーに照会し、ユーザーからの開始確認の操作信号の出力があれば前記暖房を実行する構成とすることにより、ヒートショック発生回避のための対策をユーザー自身が行っている場合等には、省エネルギー性を重視して浴室暖房の実行を取りやめることができるようになり、ユーザーの意思に沿う上に省エネルギー化も図ることができる。   According to the bathroom heating device of claim 6, as the bathroom heating control means, before the operation of the bathroom heater is controlled and the heating in the bathroom is started, the user is inquired about whether or not to perform the heating in the bathroom. If there is an output of a start confirmation operation signal from the user, the heating is performed. Thus, when the user himself takes measures for avoiding the occurrence of heat shock, the energy saving is emphasized. This makes it possible to cancel the heating of the bathroom, and in accordance with the user's intention, can also save energy.

脱衣場と浴室内との状況を、前面及び天井を省略した状態で示す斜視図である。It is a perspective view which shows the state between a dressing room and the inside of a bathroom in the state which abbreviate | omitted the front surface and the ceiling. 本発明の浴室暖房装置の構成要素を示す模式図である。It is a schematic diagram which shows the component of the bathroom heating apparatus of this invention. 浴室暖房機による温風吹き出し機構を原理的に示す原理図である。It is a principle figure which shows in principle the warm air blowing mechanism by a bathroom heater. 図4(a)は浴室リモコンの例の正面図であり、図4(b)は図4(a)のA−A線における部分拡大断面説明図である。Fig.4 (a) is a front view of the example of a bathroom remote control, FIG.4 (b) is the partial expanded sectional view explanatory drawing in the AA of Fig.4 (a). 第1実施形態に係る浴室暖房制御のフローチャートである。It is a flowchart of bathroom heating control which concerns on 1st Embodiment. 脱衣場の空間温度と、浴室内の空間温度と、浴槽内の浴湯温度との関係を示す関係図である。It is a related figure which shows the relationship between the space temperature of a dressing room, the space temperature in a bathroom, and the bath temperature in a bathtub. 第2実施形態に係る浴室暖房制御のフローチャートである。It is a flowchart of bathroom heating control which concerns on 2nd Embodiment. 図8(a)は空気環境にいる入浴者の皮膚を境界として体内側と空中側との間の伝熱モデル図であり、図8(b)は水中環境にいる入浴者の皮膚を境界として体内側と水中側との間の伝熱モデル図である。FIG. 8A is a heat transfer model diagram between the inside of the body and the air side with the skin of the bather in the air environment as a boundary, and FIG. 8B is the boundary of the skin of the bather in the underwater environment. It is a heat transfer model figure between a body inner side and an underwater side.

以下、本発明の実施形態を図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1は、本発明の実施形態が適用される浴室内の状況を示す。脱衣場1と開閉扉2により出入り可能とされた浴室3には、床面31に浴槽4が設置され、浴槽4より僅かに上側位置の壁面32に浴室リモコン5が設置され、天井寄り位置の壁面33に浴室暖房機として浴室換気乾燥暖房機6が壁掛け設置されている。なお、以下、浴室換気乾燥暖房機6は「浴室暖房機6」と省略して用いる。   FIG. 1 shows a situation in a bathroom to which an embodiment of the present invention is applied. In the bathroom 3 that can be accessed by the dressing room 1 and the door 2, the bathtub 4 is installed on the floor 31, and the bathroom remote controller 5 is installed on the wall 32 slightly above the bathtub 4. A bathroom ventilation dryer 6 is mounted on the wall 33 as a bathroom heater. Hereinafter, the bathroom ventilation dryer / heater 6 is abbreviated as “bathroom heater 6”.

浴槽4や浴室暖房機6は、図2に示すように、浴室3外の屋外又は屋内の所定位置に設置された給湯器7と、それぞれ一対で1組の循環配管71,72を介して接続されている。浴槽4には、循環配管71を通して給湯器7から湯張りのための注湯が行われたり、浴湯が給湯器7との間で追い焚きのために循環加熱されたり、するようになっている。又、浴室暖房機6には、循環配管72を通して給湯器7から所定温度(例えば80℃)の高温水が循環供給されており、この高温水を熱源として浴室3内に温風を吹き出すことにより、浴室3内の暖房を行うようになっている。この浴室暖房機6による温風吹き出しの原理は、図3に例示するように、給湯器7から循環供給される高温水が放熱器61を通過する間にファン62を作動させることにより、吹き出し口63から浴室3内に温風を吹き出し得るようになっている。   As shown in FIG. 2, the bathtub 4 and the bathroom heater 6 are connected to a hot water heater 7 installed at a predetermined position outside or inside the bathroom 3 through a pair of circulation pipes 71 and 72, respectively. Has been. In the bathtub 4, hot water filling is performed from the water heater 7 through the circulation pipe 71, and the hot water is circulated and heated for reheating with the water heater 7. Yes. The bathroom heater 6 is circulated and supplied with high-temperature water at a predetermined temperature (for example, 80 ° C.) from the water heater 7 through the circulation pipe 72, and hot air is blown into the bathroom 3 using this high-temperature water as a heat source. The bathroom 3 is heated. As illustrated in FIG. 3, the principle of hot air blowing by the bathroom heater 6 is that the hot water circulated from the hot water heater 7 is operated while the fan 62 is operated while passing through the radiator 61. The hot air can be blown into the bathroom 3 from 63.

給湯器7は、図2の例では、給湯機能、温水循環式の温水暖房機能、フロ追焚機能、注湯機能の各機能を併有する複合型に構成されたものである。各機能について簡単に説明すると、給湯機能のために、外部から水道水等の給水を給湯器7内の熱交換器に受け、この水が熱交換器を通過する間にバーナの燃焼熱により所定の給湯設定温度又は注湯設定温度まで熱交換加熱されて出湯される。この出湯が外部の給湯栓(図示省略)に給湯されたり、あるいは、注湯弁の開閉切換制御により循環配管71を通して浴槽4に注湯されて湯張りされたり、ということが行われる。又、温水暖房機能のために、浴室暖房機6で放熱により低温になった低温水が循環配管72を通して給湯器7に戻され、給湯器7内の熱交換器を通過する間にバーナの燃焼熱により熱交換加熱されて所定の高温水とされ、この高温水が浴室暖房機6に再び循環供給されることになる。さらに、フロ追い焚き機能のために、例えば温水暖房機能における高温水が熱源として分流供給される液−液熱交換器を備え、この液−液熱交換の被加熱側に対し循環配管71により浴槽4内の浴湯が循環されて追い焚きされるようになっている。これらの各機能は給湯器コントローラ73により動作制御されるようになっている。この給湯器コントローラ73は台所リモコン等74と接続される他、浴室暖房制御手段を構成する浴室暖房コントローラ8と双方向通信可能に接続されている。浴室暖房コントローラ8は、浴室リモコン5からの入力設定信号や後述の温度検出信号等の出力を受けて、給湯器コントローラ73に制御情報に係る信号を出力する一方、浴室暖房機6の動作制御を行うようになっている。このような浴室暖房コントローラ8は、浴室暖房機6に付設される浴室暖房ユニットに設けることができ、あるいは、給湯器7の給湯器コントローラ73と例えば一体にした状態で給湯器7に設けることもできる。   In the example of FIG. 2, the water heater 7 is configured as a composite type having both a hot water supply function, a hot water circulation type hot water heating function, a flow replenishment function, and a pouring function. Briefly explaining each function, for the hot water supply function, tap water or the like is supplied from the outside to the heat exchanger in the hot water heater 7, and the predetermined heat is applied by the combustion heat of the burner while the water passes through the heat exchanger. The hot water is heated up to a preset hot water supply temperature or a preset hot water temperature and discharged. The hot water is supplied to an external hot water tap (not shown), or the hot water is poured into the bathtub 4 through the circulation pipe 71 by opening / closing switching control of the hot water valve. In addition, for the hot water heating function, the low temperature water that has become low temperature due to heat radiation in the bathroom heater 6 is returned to the hot water heater 7 through the circulation pipe 72 and burns in the burner while passing through the heat exchanger in the hot water heater 7. Heat exchange heat is performed by heat to obtain predetermined high-temperature water, and this high-temperature water is circulated and supplied to the bathroom heater 6 again. Furthermore, for the flow replenishment function, for example, a liquid-liquid heat exchanger in which high-temperature water in the hot water heating function is supplied as a heat source is supplied as a heat source. The bath water in 4 is circulated and chased away. Each of these functions is controlled by a water heater controller 73. The water heater controller 73 is connected to the kitchen remote controller 74 and the like, and is connected to the bathroom heating controller 8 constituting the bathroom heating control means so as to be capable of bidirectional communication. The bathroom heating controller 8 receives an output such as an input setting signal from the bathroom remote controller 5 and a temperature detection signal described later, and outputs a signal related to the control information to the water heater controller 73, while controlling the operation of the bathroom heater 6. To do. Such a bathroom heating controller 8 can be provided in a bathroom heating unit attached to the bathroom heater 6, or can be provided in the water heater 7, for example, integrally with the water heater controller 73 of the water heater 7. it can.

浴室リモコン5は、浴槽4に入浴した状態で操作できるように、浴槽4の上端縁から僅かな距離U(例えばU=10〜20cm程度)だけ上方位置に設置されている。この浴室リモコン5には、図4(a)に例示するように、LCDにより形成された表示部51を備える他、例えばふろ自動スイッチ52等の各種スイッチ類や、音声通話部53を備えている。又、浴室リモコン5には図4(b)に示すように浴室温度センサ54が設けられている。この浴室温度センサ54は、浴室3内の浴室リモコン5設置部位、すなわち、浴槽4の僅かに上方位置であって、入浴者が立ち上がった状態ではその入浴者の大腿部辺りの高さ位置における浴室3内の温度を検出して浴室暖房コントローラ8に出力するようになっている。かかる浴室温度センサ54としては、例えば、浴室リモコン5の下側の開閉蓋55内において開閉蓋55に貫通形成された開口56から浴室3内に臨んで配置するようにすることができる。   The bathroom remote controller 5 is installed at an upper position by a slight distance U (for example, about U = 10 to 20 cm) from the upper end edge of the bathtub 4 so that the bathroom remote controller 5 can be operated in the state of bathing in the bathtub 4. As illustrated in FIG. 4A, the bathroom remote controller 5 includes a display unit 51 formed by an LCD, and various switches such as a bath automatic switch 52 and a voice call unit 53. . The bathroom remote controller 5 is provided with a bathroom temperature sensor 54 as shown in FIG. This bathroom temperature sensor 54 is located at a position where the bathroom remote controller 5 is installed in the bathroom 3, that is, slightly above the bathtub 4, and at a height position around the thigh of the bather when the bather stands up. The temperature in the bathroom 3 is detected and output to the bathroom heating controller 8. As the bathroom temperature sensor 54, for example, the bathroom temperature sensor 54 can be disposed in the bathroom 3 through an opening 56 formed through the opening / closing lid 55 in the opening / closing lid 55 on the lower side of the bathroom remote controller 5.

<第1実施形態>
次に図5のフローチャートを参照しつつ、浴室暖房コントローラ8による第1実施形態に係る浴室暖房制御について説明する。浴室暖房制御は、浴室リモコン5の例えばふろ自動スイッチ52(図4参照)がユーザーによりON操作されて浴槽3に湯張りが行われるか、あるいは、湯張りに引き続いて追い焚きにより所定のふろ設定温度まで追い焚きが完了すると開始され(ステップS1でYES)、まず、浴槽内温度Tyと、浴室内温度Trとの温度差Tsが所定の設定許容差Tt以上あるか否かについて判定する(ステップS2)。浴槽内温度Tyとは、浴槽3内の浴湯の湯温のことであり、予め設定されているふろ設定温度又はユーザーが浴室リモコン5に入力設定したふろ設定温度を用いることができる。又、浴室内温度Trとは、浴室リモコン5に設けられた温度センサ54による浴室3内の雰囲気温度(空気の温度)が用いられる。例えば、浴槽内温度Tyが40℃、浴室内温度Trが15℃だとすると、温度差Tsは25℃となって設定許容差Tt(例えば25℃)よりも大となるため、この場合には後述の如く浴室暖房制御が実行されることになる。このような場合として、例えば冬期には入浴前の浴室内温度Trは15℃よりも低くなることが多いと考えられ、温度差Tsは設定許容差Ttよりも大となって浴室暖房制御が実行されるようになっている。又、春期や秋期であっても、気温の低い日には冬期と同様の温度差となって、浴室暖房制御が実行されるようになっている。
<First Embodiment>
Next, bathroom heating control according to the first embodiment by the bathroom heating controller 8 will be described with reference to the flowchart of FIG. In the bathroom heating control, for example, the bath automatic switch 52 (see FIG. 4) of the bathroom remote controller 5 is turned ON by the user and the bath 3 is filled with water, or a predetermined bath is set by chasing after the hot water filling. When the reheating to the temperature is completed (YES in step S1), first, it is determined whether or not the temperature difference Ts between the bath temperature Ty and the bathroom temperature Tr is greater than or equal to a predetermined set tolerance Tt (step). S2). The bath temperature Ty is the bath temperature of the bath water in the bath 3, and a bath set temperature set in advance or a bath set temperature input and set by the user to the bathroom remote controller 5 can be used. As the bathroom temperature Tr, an atmospheric temperature (air temperature) in the bathroom 3 by a temperature sensor 54 provided in the bathroom remote controller 5 is used. For example, if the bath temperature Ty is 40 ° C. and the bath temperature Tr is 15 ° C., the temperature difference Ts is 25 ° C., which is larger than the set tolerance Tt (for example, 25 ° C.). Thus, the bathroom heating control is executed. In such a case, for example, in winter, the temperature Tr in the bathroom before bathing is considered to be often lower than 15 ° C., and the temperature difference Ts is larger than the set tolerance Tt, and the bathroom heating control is executed. It has come to be. Even in the spring or autumn season, the bathroom heating control is executed on the day when the temperature is low with the same temperature difference as in the winter season.

温度差Tsが設定温度差Ttよりも大であれば(ステップS2でYES)、念のために、この浴室暖房制御が搭載された装置が浴室暖房機能付きか否かのチェック(ステップS3)と、浴室暖房を実行しても良いか否かのユーザーの意思確認(ステップS4)とを行う。ステップS3のチェックは浴室暖房機能を備えていない機種にも同じ仕様の浴室暖房コントローラ8を適用可能とするためであり、又、ステップS4の意思確認は、ヒートショック発生回避のための対策をユーザー自身が行っている場合のあることを考慮し、そのような場合には省エネルギー性を重視して浴室暖房の実行を取りやめることがユーザーの意思に沿うようにしたものである。ステップS3のチェックで浴室暖房機能を備えていない機種である場合には、台所リモコン等74の表示部に対し例えば「浴室が冷えていますのでご注意下さい。」等の如く注意喚起のためのメッセージを表示及び/又は音声案内する(ステップS5)。又、ステップS4の意思確認のために、台所リモコン等74や浴室リモコン5の表示部に対し、例えば「浴室が冷えているため、浴室暖房を開始しますが、よろしいですか?よろしければ、開始ボタンをONして下さい。」とのメッセージを表示及び/又は音声案内する。所定時間内に開始ボタンのON操作信号が出力されない等の場合には(ステップS6でNO)、前記のステップS5によるメッセージの表示及び/又は音声案内を実行する一方、ユーザーによる開始ボタンのON操作信号が出力されれば(ステップS6でYES)、浴室暖房機6の作動を開始させて浴室暖房を実行する(ステップS7)。   If the temperature difference Ts is larger than the set temperature difference Tt (YES in step S2), a check is made as to whether or not the apparatus equipped with this bathroom heating control has a bathroom heating function (step S3). The user confirms whether or not the bathroom heating may be executed (step S4). The check in step S3 is to make it possible to apply the bathroom heating controller 8 of the same specification to a model that does not have a bathroom heating function, and the intention confirmation in step S4 is a measure for avoiding the occurrence of heat shock. Considering what may be done by oneself, in such a case, it is made to comply with the user's intention to cancel execution of bathroom heating with emphasis on energy saving. If it is a model that does not have a bathroom heating function in the check in step S3, a message for alerting the display such as “Please note that the bathroom is cold” on the display of 74 such as the kitchen remote control. Is displayed and / or voice-guided (step S5). In addition, for confirmation of the intention in step S4, for example, “The bathroom is cold because the bathroom is cold, but the bathroom heating starts. Are you sure? Please turn on the button "message and / or voice guidance. If the start button ON operation signal is not output within a predetermined time (NO in step S6), the message display and / or voice guidance in step S5 is executed, while the start button ON operation by the user is performed. If the signal is output (YES in step S6), the operation of the bathroom heater 6 is started and the bathroom heating is executed (step S7).

すなわち、給湯器7から高温水を浴室暖房機6に循環供給させて、浴室3内に温風を吹き出させる。浴室暖房機6の動作制御としては、少なくとも前記の温度差Tsが設定許容差Ttよりも小さくなるまで浴室3内の温度を昇温させることを原則とするが、浴室内温度Tr、つまり浴室リモコン5の温度センサ54による検出温度が、次の目標雰囲気温度になるまで昇温させるようにすることができる。すなわち、目標雰囲気温度として、浴槽内温度Ty(ふろ設定温度)と、脱衣場1の雰囲気温度又は浴室暖房前の浴室内温度Trとの間の中間値を設定し、前記検出温度が目標雰囲気温度になるように温度制御することができる。ここで、脱衣場の雰囲気温度は脱衣場に温度センサを別途設置して検出してもよいが、浴室暖房前の状態では浴室3内も脱衣場1もほぼ同じ環境で同じ雰囲気温度(Td=Tr,図6参照)であると考えられるため、脱衣場の雰囲気温度として、浴室暖房前の浴室リモコン5の温度センサ54の検出温度である浴室内温度Trを用いることができる。さらに、目標雰囲気温度として、図6に示すように、目標雰囲気温度={脱衣場温度Td(=Tr)+浴槽内温度Ty}/2を設定し、浴室リモコン5の温度センサ54による検出温度が前記目標雰囲気温度に昇温して到達するまで、浴室暖房機6による温風吹き出しを継続させ、温度センサ54による検出温度が前記目標雰囲気温度に到達すれば浴室暖房制御を停止してリターンする。   That is, hot water is circulated and supplied from the water heater 7 to the bathroom heater 6 to blow out hot air into the bathroom 3. In principle, the operation of the bathroom heater 6 is controlled by raising the temperature in the bathroom 3 until at least the temperature difference Ts becomes smaller than the set tolerance Tt. The temperature detected by the temperature sensor 54 can be raised until the next target ambient temperature is reached. That is, as the target atmosphere temperature, an intermediate value between the bath temperature Ty (the bath set temperature) and the atmosphere temperature of the dressing room 1 or the bathroom temperature Tr before bathroom heating is set, and the detected temperature is the target atmosphere temperature. The temperature can be controlled so that Here, the ambient temperature of the dressing room may be detected by separately installing a temperature sensor in the dressing room, but in the state before the bathroom heating, both the bathroom 3 and the dressing room 1 have the same ambient temperature (Td = Tr, see FIG. 6), therefore, the bathroom interior temperature Tr, which is the temperature detected by the temperature sensor 54 of the bathroom remote controller 5 before the bathroom heating, can be used as the atmosphere temperature of the dressing room. Further, as shown in FIG. 6, target atmosphere temperature = {dressing room temperature Td (= Tr) + in-bath temperature Ty} / 2 is set as the target atmosphere temperature, and the temperature detected by the temperature sensor 54 of the bathroom remote controller 5 is The warm air blowing by the bathroom heater 6 is continued until the temperature reaches the target atmosphere temperature, and if the temperature detected by the temperature sensor 54 reaches the target atmosphere temperature, the bathroom heating control is stopped and the process returns.

このような浴室暖房制御の場合、入浴者が入浴のために浴室3に入る前までに、浴室3内を所定温度まで昇温することができ、ヒートショック発生のおそれを回避することができる。この際、浴室内温度Trが脱衣場の雰囲気温度Tdと浴槽内温度Tyとの間の中間値まで昇温されるため、入浴者は脱衣後、浴槽3内の浴湯に入浴するまでに環境温度が段階的に上昇することになり、ヒートショック発生回避を効果的に得ることができる。そして、浴室内温度Trを、脱衣場の雰囲気温度Tdと浴槽内温度Tyとの間の平均値(中央値)まで昇温させることで、前記の段階的上昇をより滑らかにすることができ、ヒートショック発生回避をより一層図ることができる。なお、前記の制御例では、脱衣場温度Tdとして浴室暖房前の浴室内温度Trを用いたが、これに限らず、例えば給湯器7に設けられている雰囲気温度検出用の温度センサの検出温度を代用することができる。給湯器7は、浴室外の屋内か、屋外に設置されているため、前記雰囲気温度検出用の温度センサの検出温度は脱衣場の雰囲気温度と同等か、屋外であれば脱衣場の雰囲気温度よりも低く表れるため、安全側の温度値として用いることができるからである。又、脱衣場1に温度センサ11(図1参照)を設け、その検出温度を脱衣場温度Tdとして用いるようにしてもよい。   In the case of such bathroom heating control, before the bather enters the bathroom 3 for bathing, the temperature in the bathroom 3 can be raised to a predetermined temperature, and the risk of heat shock can be avoided. At this time, the bath temperature Tr is raised to an intermediate value between the atmosphere temperature Td of the dressing room and the bath temperature Ty, so that the bather must take the environment before bathing in the bath water in the bath 3 after undressing. The temperature rises step by step, and it is possible to effectively avoid the occurrence of heat shock. And by raising the temperature Tr in the bathroom to the average value (median value) between the atmosphere temperature Td of the dressing room and the temperature Ty in the bathtub, the above-mentioned stepwise rise can be made smoother, It is possible to further avoid the occurrence of heat shock. In the above control example, the bathroom temperature Tr before bathroom heating is used as the dressing room temperature Td. However, the temperature is not limited to this. For example, the detection temperature of the temperature sensor for detecting the ambient temperature provided in the water heater 7 is used. Can be substituted. Since the water heater 7 is installed indoors or outdoors outside the bathroom, the detected temperature of the temperature sensor for detecting the ambient temperature is equal to the ambient temperature of the dressing room or, if outdoor, from the ambient temperature of the dressing room. This is because it can be used as a temperature value on the safe side. Moreover, the temperature sensor 11 (refer FIG. 1) may be provided in the dressing room 1, and the detected temperature may be used as the dressing room temperature Td.

<第2実施形態>
第2実施形態は、脱衣後の入浴者が感じる環境温度は、雰囲気温度や湯温といったそれら自体の温度よりも、入浴者の皮膚表面からの放熱に基づく体感温度に左右される点に着目し、より適切なヒートショック発生回避のための浴室暖房制御を提供するものである。例えば、33℃の空気環境にいる人間の体感温度は暑いと感じる反面、同じ33℃の水中(浴湯内)環境にいる人間の体感温度は冷たいと感じる。これは体外環境が空気か水かによって人間の皮膚表面からの放熱量が大きく変動するために、同じ温度であっても体感温度は大きく変わることになるためである。従って、第1実施形態のように単に浴湯の温度と浴室内の雰囲気温度と等の温度自体の対比によって浴室暖房制御するよりも、浴室内の空気環境にいる場合と浴槽内の浴湯に浸かった場合の入浴者の体感温度の対比によって浴室暖房制御を行う方が、ヒートショック発生の回避をより的確に実現させることができる。
Second Embodiment
The second embodiment pays attention to the fact that the environmental temperature felt by the bather after undressing is more dependent on the perceived temperature based on the heat release from the skin surface of the bather, rather than their own temperature such as the atmospheric temperature or hot water temperature. The present invention provides bathroom heating control for avoiding more appropriate heat shock. For example, the human body temperature in an air environment of 33 ° C. feels hot, while the human body temperature in the same 33 ° C. water (in bath water) environment feels cold. This is because the amount of heat radiated from the human skin surface varies greatly depending on whether the environment outside the body is air or water, so that the perceived temperature varies greatly even at the same temperature. Therefore, rather than simply controlling the bathroom heating by simply comparing the temperature of the bath water and the temperature of the atmosphere in the bathroom itself as in the first embodiment, the bath water in the bath environment and the bath water in the bathtub. It is possible to more accurately achieve the avoidance of heat shock by performing bathroom heating control by comparing the bather's sensed temperature when immersed.

すなわち、図7のフローチャートに示すように、まず、入浴者の標準体温(標準体内温度)と、浴室暖房前の浴室リモコン5の温度センサ54による検出温度(浴室内温度Tr;浴室3内の雰囲気温度)と、ふろ設定温度(浴槽内温度Ty;浴槽4内の浴湯温度)とを用いて、浴室3内の空気環境にいるときの入浴者の体感温度(皮膚表面温度)Tkと、浴槽4内の浴湯に浸かったときの入浴者の体感温度(皮膚表面温度)Tkとを後述の(1)式を解くことで演算し(ステップS21)、これらの皮膚表面温度Tkに基づいて各場合の皮膚表面からの放熱量Hr,Hyを後述の(2)式を用いて演算する(ステップS22)。次いで、浴室3内の空気環境にいるときの入浴者の皮膚表面からの放熱量Hrと、浴槽4内の浴湯に浸かっているときの入浴者の皮膚表面からの放熱量Hyとを用いて目標放熱量を設定(例えば、2種類の放熱量Hr,Hyの中間値の放熱量値を目標放熱量Hmとして設定)し、設定された目標放熱量Hmとなる目標皮膚表面温度Tkmを(2)式を用いて逆算し(ステップS23)、逆算された目標皮膚表面温度Tkmになる浴室3内の目標雰囲気温度は何度なのかを(1)式を用いて逆算することで求める(ステップS24)。そして、以上により得られた目標雰囲気温度になるように、浴室暖房機6の動作制御を行う(ステップS25)。以下、詳細に説明する。   That is, as shown in the flowchart of FIG. 7, first, the bather's standard body temperature (standard body temperature) and the temperature detected by the temperature sensor 54 of the bathroom remote controller 5 before bathroom heating (bathroom temperature Tr; atmosphere in the bathroom 3) Temperature) and bath setting temperature (bath temperature Ty; bath water temperature in bathtub 4), bather's perceived temperature (skin surface temperature) Tk when in the air environment in bathroom 3, and bath 4 is calculated by solving the equation (1) described later (step S21), and based on these skin surface temperatures Tk. The heat release amounts Hr and Hy from the skin surface in this case are calculated using the formula (2) described later (step S22). Next, the heat release amount Hr from the bather's skin surface when in the air environment in the bathroom 3 and the heat release amount Hy from the bather's skin surface when immersed in the bath water in the bathtub 4 are used. A target heat dissipation amount is set (for example, an intermediate value between the two types of heat dissipation amounts Hr and Hy is set as the target heat dissipation amount Hm), and a target skin surface temperature Tkm that is the set target heat dissipation amount Hm is set to (2 ) Using the formula (1), the backside calculation is performed (step S23), and the target atmosphere temperature in the bathroom 3 that is the calculated target skin surface temperature Tkm is calculated by using the formula (1) (step S24). ). And operation control of the bathroom heater 6 is performed so that it may become the target atmospheric temperature obtained by the above (step S25). Details will be described below.

例えば図8に示すように、入浴者はその皮膚表面を境界にして自身の体内と、体外環境とが接触している。体外環境が浴室3内の空気環境であるときは、皮膚表面を境界にして空気と接触しているし、体外環境が浴槽4内の浴湯(水)であるときは、皮膚表面を境界にして水(浴湯)と接触している。皮膚表面を境界にして空気と接触している場合には、皮膚表面を挟んで身体側に皮膚境膜(通常は膜厚L1=4mm)が存在し、空気側に空気境膜(通常は境膜L2=3mm)が存在する(図8(a)参照)。一方、皮膚表面を境界にして水と接触している場合には、皮膚表面を挟んで身体側に皮膚境膜(通常は膜厚L1=4mm)が存在し、水側に水境膜(通常は境膜L3=0.4mm)が存在する(図8(b)参照)。そして、体外環境が空気であるときには、体内の熱は皮膚境膜及び空気境膜を介して外部の空気との間で熱伝導し、体外環境が水(浴湯)であるときには、体内の熱は皮膚境膜及び水境膜を介して外部の水(浴湯)との間で熱伝導する。   For example, as shown in FIG. 8, the bather is in contact with his / her body and the extracorporeal environment with the skin surface as a boundary. When the extracorporeal environment is the air environment in the bathroom 3, the skin surface is in contact with the air, and when the extracorporeal environment is the bath water (water) in the bathtub 4, the skin surface is the boundary. Is in contact with water (bath). When the skin surface is in contact with the air, there is a skin film (usually film thickness L1 = 4 mm) on the body side across the skin surface, and an air film (usually a boundary film) on the air side. Membrane L2 = 3 mm) (see FIG. 8A). On the other hand, when the skin surface is in contact with water as a boundary, the skin boundary film (usually the film thickness L1 = 4 mm) exists on the body side across the skin surface, and the water boundary film (usually normal) Is present (see FIG. 8 (b)). When the extracorporeal environment is air, the heat inside the body conducts heat with the outside air through the skin film and the air film, and when the extracorporeal environment is water (bath water) Conducts heat with external water (bath water) through the skin film and the water film.

以上のような状況において、ステップS21における皮膚表面温度Tkの演算は次のようにして得られる。すなわち、皮膚表面温度Tkは、皮膚境膜,空気境膜あるいは水境膜の各熱伝導度λ1,λ2,λ3(単位:W/m・K)と、それらの膜厚L1,L2,L3とに応じて変動するため、皮膚表面における体内からの放熱量(又は体内への吸熱量;単位W/m)と、皮膚表面における体外環境からの吸熱量(又は体外環境からの放熱量)とが互いに等しいとする次の関係式を解くことで、特定条件における皮膚表面温度Tkが得られることになる。例えば、浴室3内の空気環境にいる場合の関係式は(1)式となる。
−λ2×(体外環境温度−Tk)/L2=−λ1×(Tk−体内温度)/L1
・・(1)
ここで、λ2:空気の熱伝導度(λ2=0.0263)、L2:空気境膜の膜厚(L2=3mm)、λ1:皮膚の熱伝導度(λ1=0.21)、L1:皮膚境膜の膜厚(L1=4mm)、Tk:皮膚表面温度である。なお、熱伝導度の単位:W/m・Kや放熱量の単位W/mにおけるWはワット、mはメートル、Kはケルビン(換算は摂氏温度+273.15)であり、演算においては、体外環境温度,体内温度,Tkは摂氏からケルビンに換算して行う。
式を変形してTkについて整理すると、次の(3)式が得られる。
Tk=(体外環境温度×α+体内温度)/(1+α) ・・(3)
ここで、αは次の(4)式で表される係数であり、境膜状況係数と呼ぶこととする。
α=(λ2×L1)/(λ1×L2) ・・(4)
例えば、λ2=0.0263、L2=3mm、λ1=0.21、L1=4mmとして境膜状況係数αを演算するとα=0.167が得られ、これと、体外環境温度として例えば28℃、体内温度として例えば36℃とを(3)式に代入すると、浴室3内の空気環境にいる入浴者の皮膚温度TkとしてTk=34.86℃が得られる。
In the situation as described above, the calculation of the skin surface temperature Tk in step S21 is obtained as follows. That is, the skin surface temperature Tk is determined based on the thermal conductivity λ1, λ2, λ3 (unit: W / m · K) of the skin boundary film, the air boundary film, or the water boundary film, and their film thicknesses L1, L2, L3. The amount of heat released from the body on the skin surface (or the amount of heat absorbed into the body; unit W / m 2 ) and the amount of heat absorbed from the outside environment on the skin surface (or the amount of heat released from the outside environment) By solving the following relational expression that is equal to each other, the skin surface temperature Tk under a specific condition can be obtained. For example, the relational expression when in the air environment in the bathroom 3 is the expression (1).
−λ2 × (external environment temperature−Tk) / L2 = −λ1 × (Tk−internal temperature) / L1
(1)
Here, λ2: thermal conductivity of air (λ2 = 0.0263), L2: film thickness of air boundary film (L2 = 3 mm), λ1: thermal conductivity of skin (λ1 = 0.21), L1: skin The film thickness of the film (L1 = 4 mm), Tk: skin surface temperature. In the unit of thermal conductivity: W / m · K or W in the unit of heat dissipation W / m 2 , W is watt, m is meter, K is Kelvin (converted in degrees Celsius +273.15), and in the calculation, Extracorporeal environment temperature, internal temperature, and Tk are converted from Celsius to Kelvin.
When the equation is transformed and arranged for Tk, the following equation (3) is obtained.
Tk = (external environmental temperature × α + internal temperature) / (1 + α) (3)
Here, α is a coefficient represented by the following equation (4), and is referred to as a film condition coefficient.
α = (λ2 × L1) / (λ1 × L2) (4)
For example, when λ2 = 0.0263, L2 = 3 mm, λ1 = 0.21, L1 = 4 mm, and calculating the membrane condition factor α, α = 0.167 is obtained, and the extracorporeal environment temperature is, for example, 28 ° C. For example, if 36 ° C. is substituted into the equation (3) as the body temperature, Tk = 34.86 ° C. is obtained as the skin temperature Tk of the bather in the air environment in the bathroom 3.

一方、浴室3内の空気環境にいる場合の関係式は(1)′式となる。
λ3×(体外環境温度−Tk)/L3=λ1×(Tk−体内温度)/L1 (1)′
ここで、λ3:水の熱伝導度(λ3=0.6)、L3:水境膜の膜厚(L3=0.4mm)であり、前記の(4)式は次の(4)′式により表される。
α=(λ3×L1)/(λ1×L3) ・・(4)′
前記と同様に、λ3,L1,λ1,L3の各値を代入して
境膜状況係数αを演算するとα=28.571が得られ、これと、体外環境温度として例えば33℃、体内温度として例えば36℃とを(3)式に代入すると、体外環境が水中の場合の皮膚表面温度TkとしてTk=33.1℃が得られる。
On the other hand, the relational expression in the case of the air environment in the bathroom 3 is the expression (1) ′.
λ3 × (external environment temperature−Tk) / L3 = λ1 × (Tk−internal temperature) / L1 (1) ′
Here, λ3: thermal conductivity of water (λ3 = 0.6), L3: film thickness of the water boundary film (L3 = 0.4 mm), and the above equation (4) is the following equation (4) ′ It is represented by
α = (λ3 × L1) / (λ1 × L3) (4) ′
Similar to the above, substituting the values of λ3, L1, λ1, and L3 to calculate the membrane condition factor α yields α = 28.571, which is, for example, 33 ° C. as the external temperature, For example, by substituting 36 ° C. into the equation (3), Tk = 33.1 ° C. is obtained as the skin surface temperature Tk when the extracorporeal environment is underwater.

次に、ステップS22として、得られた皮膚温度Tkに基づいて放熱量Hr,Hyを(2)式により演算する。
Hr,Hy=−λ1×(Tk−体内温度)/L1 ・・(2)
演算例としては、Tkが34.86の場合は、Hr=59.85となるし、Tkが33.1の場合は、Hy=152.25となる。一般に、暑くも無く寒くも無い放熱量(体感温度)の数値は58.2W/mといわれているため、前記の例における28℃の空気環境での放熱量(59.85W/m)では暑くも寒くも無いものの、33℃の水中環境では放熱量(152.25W/m)が過大となって寒く感じることになる。
Next, as step S22, the heat radiation amounts Hr, Hy are calculated by the equation (2) based on the obtained skin temperature Tk.
Hr, Hy = −λ1 × (Tk−internal temperature) / L1 (2)
As a calculation example, when Tk is 34.86, Hr = 59.85, and when Tk is 33.1, Hy = 152.25. Generally, the value of the amount of heat radiation (experience temperature) that is neither hot nor cold is said to be 58.2 W / m 2 , so the heat radiation amount in an air environment of 28 ° C. in the above example (59.85 W / m 2 ). Then, although it is neither hot nor cold, the heat dissipation amount (152.25 W / m 2 ) becomes excessive in an underwater environment of 33 ° C., and it feels cold.

さらに、ステップS23及びS24において、目標放熱量Hmとして、浴室内の空気環境にいる場合の放熱量Hrと、浴湯に浸かった状態の放熱量Hyとの平均値(Hm=(Hr+Hy)/2)を設定し、この目標放熱量Hmを実現させ得る外部環境(浴室3内の空気環境)の温度を、逆算により求める。逆算は、まず、目標放熱量Hmとなる目標皮膚表面温度Tkmを、(2)式を用いて逆算し(ステップS23)、次に、逆算された目標皮膚表面温度Tkmになる浴室3内の目標雰囲気温度Trmを、(1)式を用いて逆算する。   Furthermore, in steps S23 and S24, as the target heat dissipation amount Hm, the average value of the heat dissipation amount Hr in the air environment in the bathroom and the heat dissipation amount Hy in the bath water condition (Hm = (Hr + Hy) / 2). ) And the temperature of the external environment (air environment in the bathroom 3) that can realize the target heat dissipation amount Hm is obtained by back calculation. In the reverse calculation, first, the target skin surface temperature Tkm that becomes the target heat radiation amount Hm is calculated backward using the equation (2) (step S23), and then the target in the bathroom 3 that becomes the calculated target skin surface temperature Tkm. The ambient temperature Trm is calculated backward using the equation (1).

そして、ステップS25において、浴室暖房機6の作動を開始して,得られた目標雰囲気温度Trmになるように、浴室暖房機6の動作制御を行う。つまり、浴室リモコン5の温度センサ54の検出温度が目標雰囲気温度Trmに到達するまで、浴室暖房機6の温風吹き出しを継続させる。なお、目標放熱量Hmの設定は前記の如く平均値としてもよいが、浴室内の空気環境にいる場合の放熱量Hrと、浴湯に浸かった状態の放熱量Hyとの間の中間値を採用することもできる。又、第1実施形態のステップS4,S6の如く、ステップS25の浴室暖房機6による浴室暖房の実行をするか否かについて、ユーザーに確認するようにしてもよい。   In step S25, the operation of the bathroom heater 6 is started, and the operation of the bathroom heater 6 is controlled so that the target ambient temperature Trm is obtained. That is, the hot air blowing from the bathroom heater 6 is continued until the temperature detected by the temperature sensor 54 of the bathroom remote controller 5 reaches the target ambient temperature Trm. The target heat dissipation amount Hm may be set to an average value as described above, but the intermediate value between the heat dissipation amount Hr when in a bathroom air environment and the heat dissipation amount Hy when immersed in bath water is set. It can also be adopted. Further, as in steps S4 and S6 of the first embodiment, it may be confirmed to the user as to whether or not to perform bathroom heating by the bathroom heater 6 in step S25.

なお、以上の第2実施形態では、浴室内の雰囲気温度と、浴湯温度とを用いて演算を行っているが、第1実施形態と同様に、脱衣場の雰囲気温度と、浴湯温度を用いて演算を行うようにしてもよい。この場合において、脱衣場の雰囲気温度は、第1実施形態でも説明したように、浴室リモコン5の温度センサ54の検出温度、あるいは、給湯器7の雰囲気温度センサの検出温度で代用することもできる。   In the second embodiment described above, the calculation is performed using the atmosphere temperature in the bathroom and the bath temperature, but the atmosphere temperature in the dressing room and the bath temperature are set as in the first embodiment. May be used to perform the calculation. In this case, the atmospheric temperature in the dressing room can be substituted by the temperature detected by the temperature sensor 54 of the bathroom remote controller 5 or the temperature detected by the atmospheric temperature sensor of the water heater 7 as described in the first embodiment. .

<他の実施形態>
なお、本発明は上記第1及び第2実施形態に限定されるものではなく、その他種々の実施形態を包含するものである。すなわち、上記第1及び第2実施形態では、浴室暖房機として、給湯器7から循環供給される高温水を熱源として温風を吹き出すものを示したが、これに限らず、給湯器7とは関係なく、電気ヒーター等を用いて構成されたものであってもよい。
<Other embodiments>
The present invention is not limited to the first and second embodiments described above, but includes other various embodiments. That is, in the said 1st and 2nd embodiment, although what hot air was blown out using the hot water circulatingly supplied from the hot water heater 7 as a heat source was shown as a bathroom heater, it is not restricted to this, What is the hot water heater 7? Regardless, it may be configured using an electric heater or the like.

1 脱衣場(浴室と開閉扉を隔てて連なる他の室内空間)
2 開閉扉
3 浴室
4 浴槽
5 浴室リモコン
6 浴室換気乾燥暖房機(浴室暖房機)
8 浴室暖房コントローラ(浴室暖房制御手段)
54 温度センサ
1 Dressing room (other indoor space connecting the bathroom and the door)
2 Open / close door 3 Bathroom 4 Bathtub 5 Bathroom remote control 6 Bathroom ventilation dryer / heater (bathroom heater)
8 Bathroom heating controller (bathroom heating control means)
54 Temperature sensor

Claims (6)

浴室に設置された浴室リモコンと、浴室内の雰囲気温度を昇温させるための浴室暖房機と、この浴室暖房機の動作制御を行う浴室暖房制御手段とを備えた浴室暖房装置において、
前記浴室リモコンに対し浴室内の雰囲気温度を検出するために設置された温度センサを備え、前記浴室暖房制御手段はこの温度センサの検出温度に基づいて前記浴室暖房機の動作制御を行うように構成されている、
ことを特徴とする浴室暖房装置。
In a bathroom heating device comprising a bathroom remote controller installed in a bathroom, a bathroom heater for raising the ambient temperature in the bathroom, and a bathroom heating control means for controlling the operation of the bathroom heater,
A temperature sensor installed for detecting the ambient temperature in the bathroom with respect to the bathroom remote controller is provided, and the bathroom heating control means is configured to control the operation of the bathroom heater based on the temperature detected by the temperature sensor. Being
A bathroom heating device characterized by that.
請求項1に記載の浴室暖房装置であって、
前記浴室暖房制御手段は、前記温度センサの検出温度と、浴湯の温度との間の温度差が許容温度差よりも大きいときに、前記浴室暖房機を動作制御するように構成されている、浴室暖房装置。
The bathroom heating device according to claim 1,
The bathroom heating control means is configured to control the operation of the bathroom heater when the temperature difference between the temperature detected by the temperature sensor and the temperature of the bath water is larger than an allowable temperature difference. Bathroom heating device.
請求項1又は請求項2に記載の浴室暖房装置であって、
前記浴室暖房制御手段は、浴室と開閉扉を隔てて連なる他の室内空間の雰囲気温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度と、浴湯の温度との中間値を目標雰囲気温度に設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御するように構成されている、浴室暖房装置。
The bathroom heating device according to claim 1 or 2,
The bathroom heating control means calculates an intermediate value between the temperature of the bath water and the ambient temperature of the other indoor space connected with the bathroom and the door open or closed, or the ambient temperature of the bathroom detected by the temperature sensor before the bathroom heating. A bathroom heating apparatus configured to control the operation of the bathroom heater so that the temperature is set to a target ambient temperature and the temperature detected by the temperature sensor is increased to the target ambient temperature.
請求項1に記載の浴室暖房装置であって、
前記浴室暖房制御手段は、前記温度センサの検出温度を用いて演算した入浴者の体感温度に基づいて前記浴室暖房機の動作制御を行うように構成されている、浴室暖房装置。
The bathroom heating device according to claim 1,
The bathroom heating control device is configured to control the operation of the bathroom heater based on a temperature sensed by a bather calculated using a temperature detected by the temperature sensor.
請求項4に記載の浴室暖房装置であって、
前記浴室暖房制御手段は、浴室と開閉扉を隔てて連なる他の室内空間の雰囲気温度を用いて演算した入浴者の体感温度又は浴室暖房前の前記温度センサにより検出された浴室内の雰囲気温度を用いて演算した入浴者の体感温度と、浴湯の温度を用いて演算した入浴者の体感温度との中間値を目標体感温度に設定し、この目標体感温度を用いて逆算した雰囲気温度を目標雰囲気温度として設定し、前記温度センサの検出温度が前記目標雰囲気温度まで昇温するよう前記浴室暖房機を動作制御するように構成されている、浴室暖房装置。
The bathroom heating device according to claim 4,
The bathroom heating control means calculates the bather's perceived temperature calculated using the ambient temperature of another indoor space that is separated from the bathroom and the open / close door, or the ambient temperature detected by the temperature sensor before heating the bathroom. The intermediate temperature between the bather's perceived temperature calculated using the bath temperature and the bather's perceived temperature calculated using the bath water temperature is set as the target perceived temperature, and the ambient temperature calculated backward using this target perceived temperature is the target. A bathroom heating apparatus configured to control the operation of the bathroom heater so that the temperature detected by the temperature sensor is raised to the target ambient temperature.
請求項1〜請求項5に記載の浴室暖房装置であって、
前記浴室暖房制御手段は、前記浴室暖房機を動作制御して浴室内の暖房を開始する前に、浴室内の暖房を実行するか否かについてユーザーに照会し、ユーザーからの開始確認の操作信号の出力があれば前記暖房を実行するように構成されている、浴室暖房装置。
The bathroom heating device according to claim 1,
The bathroom heating control means inquires of the user about whether or not to perform heating in the bathroom before controlling the operation of the bathroom heater to start heating in the bathroom, and an operation signal for confirming start from the user. The bathroom heating device is configured to perform the heating when there is an output of.
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