JP2004163080A - Bathroom air conditioner - Google Patents

Bathroom air conditioner Download PDF

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Publication number
JP2004163080A
JP2004163080A JP2003081304A JP2003081304A JP2004163080A JP 2004163080 A JP2004163080 A JP 2004163080A JP 2003081304 A JP2003081304 A JP 2003081304A JP 2003081304 A JP2003081304 A JP 2003081304A JP 2004163080 A JP2004163080 A JP 2004163080A
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JP
Japan
Prior art keywords
bathroom
ventilation
temperature
room
fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003081304A
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Japanese (ja)
Inventor
Tatsuya Yoshida
達也 吉田
Kazuhiro Haraga
一博 原賀
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Toto Ltd
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Toto Ltd
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Publication date
Application filed by Toto Ltd filed Critical Toto Ltd
Priority to JP2003081304A priority Critical patent/JP2004163080A/en
Publication of JP2004163080A publication Critical patent/JP2004163080A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner that is installed on the ceiling or the like mainly of a bathroom, and ventilates the inside of it, and hardly gives cold draft feeling when a user has a bath during ventilation of the bathroom. <P>SOLUTION: The bathroom air conditioner comprises a fan for ventilating the bathroom and a fan for ventilating the other room, a motor for commonly driving the fan for ventilating the bathroom and the fan for ventilating the other room, a temperature detecting section for detecting temperature in the bathroom, a bathroom use detecting means, and a control section. The bathroom air conditioner has a motor rotation speed table corresponding to temperature reference level, and sets a rotation speed of the rotation speed table for the motor in response to an output of the bathroom use detecting means. Bathroom ventilation air quantity is changed in response to the bathroom temperature before bathing, so that the user can have a bath without feeling cold. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、主に浴室の天井等に設置して、室内の換気を行う浴室空調装置に関する。
【0002】
【従来の技術】
従来、浴室空調装置としては、主に浴室の天井に設置されて、1基のモータで、浴室内の空気と、他室内の空気を排気するが一般的に知られている(例えば、特許文献1参照。)。
図3は、従来の浴室換気風量の切替に係るブロック構成図である。
図3に示すように、浴室使用検出手段は、洗面所に設置された浴室照明スイッチであり、使用者が、浴室へ入室する前に浴室照明スイッチを点灯させることにより、装置本体は使用者の入室を検知する。この情報に基づき、浴室換気風量は入浴中換気風量へ一時的に切替る。この場合入浴中換気風量は固定値であり、入浴者の個人差や、周囲温度の状況は考慮されていない。
また、従来図8の浴室空調装置を浴室の天井に設置した断面図に示すように、他室用排気ダンパ51を閉じることにより、他室換気をせずに、入浴中換気をする構造とするもものがあった。
【0003】
【特許文献1】
特開2000−161751号公報
【0004】
【発明が解決しようとする課題】
しかしながら、従来の浴室空調装置では、浴室の照明スイッチに連動して換気風量を一時的に切替る方法があったが、昼間などの浴室照明を使用せずに入浴する場合などは、コールドドラフトを少なくすることは困難であった。
また、入浴する季節や時間帯が異なれば浴室の温度も違うので、一定量の換気風量では同一の使用者でも寒じたり、また、夏場においては、換気風量を低下させないまま入浴した方が、心地良いので換気風量を低くすることが適正とは言い難い場合があった。
【0005】
本発明は、上記の課題を解決するためになされたもので、本発明の目的は、このように浴室換気中に浴室へ入室した使用者が、コールドドラフトを感じずに入浴できる浴室空調装置を提供することにある。
【0006】
【課題を解決するための部及びその作用・効果】
本発明は、浴室内の空気を吸いこみ屋外へ排出する浴室換気用ファンと、浴室以外の居室の空気を吸いこみ屋外へ排出する他室換気用ファンと、前記浴室換気用ファンと前記他室換気用ファンを共用駆動するモータとから成る、浴室空調装置に内蔵した浴室内の室温を検出する温度検出部と、所定時間以上継続した温度検出部の出力値を温度基準レベルとして設定し、前記温度基準レベルに対し温度検出部の出力値が所定値以上大きい場合が所定時間継続すると浴室使用中と判断する浴室使用検出手段と、前記温度検出部と前記浴室使用検出手段と前記モータを制御する制御部を有する浴室空調装置において、前記制御部は、前記温度基準レベルに対応する前記モータ回転数テーブルを有するとともに、前記浴室使用検出手段の出力に応じて、前記モータに対して回転数テーブルに応じた回転数を設定することとした。
この構成によれば、浴室の温度に着目したので、入浴する場合に使用する、湯はりやシャワーなどによる浴室温度の急変を、浴室換気用の温度検出部の出力変化でもって浴室使用と検出する。
また、温度検出部の浴室温度を検出することによって、季節の違いや昼夜の違いを推定することが可能なので、周囲温度に合わせた最適な換気風量を設定することが可能になる。
【0007】
また、制御部は、所定の時間を計時する計時部を有するとともに、前記浴室使用検知部の情報に基づき、浴室換気風量を一時的に変更する制御部を備えた浴室空調装置において、制御部は入浴中換気風量から通常の浴室換気風量値へ復帰指示後、所定時間を置いた後復帰開始することを特徴とする。
この構成によれば、家族が連続して入浴する場合、前の使用者が浴室を出て直ちに元の設定の浴室換気風量に戻って、浴室の温度が下げてしまうことが無いので、浴室を暖かいまま次の使用者は使用できる。
また、前記浴室換気用ファンの下流に浴室からの換気を遮蔽する浴室用排気ダンパを備え、前記制御部は前記浴室用排気ダンパを閉じて、かつ前記他室換気用ファンの換気風量を、浴室からの換気風量分だけ大きくして運転することを特徴とする浴室空調装置。
この構成によれば、使用者が入室する前の居室全体の換気風量を、使用者が浴室に入室した後も、同一の換気風量を他室換気用ファンを用いて換気できる。
【0008】
【発明の実施の形態】
以下に、本発明の実施の形態を添付図面により詳細に説明する。
図1は、本発明の一実施形態に係る浴室空調装置を浴室の天井に設置した例を示す断面図である。
図1に示すように、本発明の装置は、浴室Aの天井Dの開口部に挿入して取付設置された装置本体15と、浴室Aに臨んだ装置本体15に取付られる化粧パネル16からなる。装置本体15の内部は、排気風路隔壁12により、循環用風路17及び浴室排気用風路6と、他室排気用風路7に分離されている。循環用風路17は破線矢印で示すように浴室A内の空気を吸いこみ再度浴室A内へ送り込む風路であり、浴室排気用風路6は浴室A内の空気を吸いこみ、排気ダクト用接続口10へ排出する風路である。他室排気用風路7は他室B内の空気を吸いこみ、他室吸気ダクト9と、他室吸気ダクト用接続口8と通して、排気ダクト用接続口10へ排出する風路である。排気ダクト用接続口10で合流した、浴室排気用風路6からの排気と、他室排気用風路7からの排気は、排気ダクト11を通して、屋外Cへ排気される。
【0009】
循環用風路17および/または浴室排気用風路6へ風を送る浴室換気用ファン1と、他室排気用風路7へ風を送る他室換気用ファン2は、モータ3によって駆動される。循環用風路17と浴室排気用風路6の切替は、切替ダンパ14によって行われる。循環用風路17には、加熱部13を備えており、浴室Aへ加熱した空気を送り込む。浴室排気用風路6には、浴室の使用状態を検知する浴室使用検知部4を備える。浴室使用検知部4は、浴室の温度を検知する温度検出部の例である。
なお、洗面所からの吸気については、浴室排気用風路6または他室排気用風路7と共通にする構成も、もちろん良いものである。
【0010】
図2は、本発明の一実施形態に係るブロック構成図である。
図2に示すように、装置本体15内部の制御部5は、モータ3と、浴室使用検出手段4と、記憶部21と、加熱部13と、切替ダンパ14を制御する。また制御部5は、装置本体15へ運転指示を行う操作部23であるリモコン内部のリモコン用制御部24と、通信線22を介して連通する。リモコン用制御部24は、使用者が操作する運転の意志を受ける操作部25からの信号を受け取り、運転の状態を表示部26へ表示する。
浴室空調装置の運転指示を行う操作部により設定変更するため、高所に設置された浴室空調装置には触れず、低所に設置されたリモコンを操作して、入浴中換気風量の設定変更を容易にできる。
【0011】
ここで、本浴室空調装置の動作について簡単に説明をおこなう。
使用者が入浴していない状態では、モータ3の駆動による浴室換気用ファン1と、他室換気用ファン2により、浴室Aと他室Bから吸気した居室全体の空気を屋外Cへ排気している。この状態における浴室Aからの浴室換気風量のまま、使用者が入浴をはじめると、浴室ドア(図示せず)のガラリから吸気する居室の空気が、使用者へあたりコールドドラフトと呼ばれる寒い感覚になる。そこで、浴室の温度に着目して、入浴する場合に使用する、湯はりやシャワーなどによる浴室温度の急変を、浴室換気用の温度検出部の出力変化でもって、浴室使用検知部4は使用者が浴室へ入って入浴をはじめたことを検知する。
図3は、本発明の一実施形態に係る浴室温度とモータ回転数のグラフである。
図3に示すように、浴室温度に応じたモータ回転数を定義する。制御部の内部にはこのグラフに示す回転数テーブルを備えて、浴室使用検出手段の出力に応じて、モータに対して回転数テーブルの回転数を設定する。
このように、設定変更は、常時監視した前記温度検出部の温度情報に基づき、低温ならば入浴中換気風量を少なめに、また高温ならば入浴中換気風量を多めとする。
この構成によれば、冬場や寒い深夜であれば浴室ドアのガラリからの吸気量を少なく制御するのでコールドドラフトをより感じにくいし、夏場や暑い昼間であれば浴室ドアのガラリからの吸気量を多く制御するので入浴中に暑い思いをしなくて良い。これらの設定変更を手動ではなく、温度検出部の情報に基づき自動で行うので、使用者は設定する煩雑さから解放されて、使い勝手が良い。
また記憶部21は、制御部5にある設定変更された入浴中換気風量を記憶する永久記憶素子である。不意に電源が遮断された場合においても、その設定値を失うことなく、次回も快適な入浴中の換気が出来る。
【0012】
なお、使用者の個人差や、周囲温度の変化により、コールドドラフトを感じることがある。そこで、入浴中換気風量を使用者のお好みに合わせた設定が出来ると良い。洗面所の壁に設置した操作部23は、使用者の手が容易に届く低所にあるので、入浴中換気風量の設定値を変更するのに便利である。操作部23の操作部25を操作しながら、表示部26にて確認しつつ、お好みの入浴中換気風量に設定する。冬場や深夜などの周囲温度が低い場合は、入浴中換気風量を少な目に設定するし、夏場や昼間などの周囲温度が高い場合は、入浴中換気風量を多めに設定する。操作部23にて設定された入浴中換気風量は、通信線22を介して制御部5へ与えられ、その情報に基づき、モータ3の回転数は少な目、または多めに制御されて、入浴中換気風量は使用者の希望どおりとなる。
【0013】
図4は、本発明の一実施形態に係るタイミングチャートである。
図4に示すように、温度検出部31は浴室A内の温度を検出するサーミスタであるが、浴室使用検知部4のひとつとして使用できる。サーミスタは浴室内の温度を常時監視して、使用者が浴室へ入り入浴をはじめると、浴室内の空気温度が上昇する。サーミスタが時間ΔT1の間に温度がΔt1以上の上昇変化を検出したら、制御部5は使用者の入室と判断する。また、サーミスタが時間ΔT2の間に温度がΔt2以上の上昇変化を検出したら、制御部5は使用者の退室と判断する。浴室使用検知の判定結果32に、制御部5の判定結果を示す。浴室換気風量の動き33は、浴室使用検知の判定結果32と、入室を検知する前の温度が閾値温度34により、制御部5で決定される。制御部5は閾値温度34を15℃にして持っており、もし入浴前の温度が5℃であれば、入浴中換気風量を少な目に自動で設定変更して、モータ3の回転数を小さくする。これにより冬場や深夜の入浴ではコールドドラフトを感じにくく、快適な入浴ができるようになる。
【0014】
図5は、本発明の一実施形態に係るタイミングチャートである。
図5では、制御部5は閾値温度34を15℃にして持っており、もし入浴前の温度が25℃であれば、入浴中換気風量を多めに自動で設定変更して、モータ3の回転数を大きくする。これにより夏場や昼間の入浴では、もともとコールドドラフトを感じにくいので、清涼感のある快適な入浴ができるようになる。
【0015】
図6は、本発明の一実施形態に係るタイミングチャートである。
図6に示すように、温度検出部31のサーミスタが時間ΔT2の間に温度がΔt2以上の上昇変化を検出したら、制御部5は使用者の退室と判断する。浴室換気風量の動き33は、浴室使用検知の判定結果32の退室から所定時間ΔT3をおいて、少な目の入浴中換気風量を浴室換気風量へ戻す。ΔT3の時間以内に次の使用者が入室しない場合は、浴室換気風量での入浴から開始される。
その下のチャートには、所定時間ΔT4の例を示す。制御部5は、制御時間をΔT3からΔT4へ設定変更できるので、前回の使用者の退室から、次回の使用者の入室までに時間が空く場合においても、入浴中換気風量のまま入浴を開始できる。これによって、暖かいままの浴室へ快適な入浴ができるようになる。
また記憶部21は、制御部5にある設定変更された所定時間を記憶する永久記憶素子であるので、不意に電源が遮断された場合においても、その設定値を失うことなく、次回も快適な入浴中の換気が出来る。
【0016】
図7は、本発明の別の一実施形態に係る浴室空調装置を浴室の天井に設置した例を示す断面図である。
本発明の装置は、図1に対して、切替ダンパ14が、浴室排気用風路6を閉ざした、暖房運転または浴室空調装置が待機の状態である。
図10は、本発明の一実施形態に係るタイミングチャートである。
図4に対して、浴室換気風量の動き33と、他室換気風量の動き57を示す。浴室に使用者がいない場合は、切替ダンパ14を図1に示す状態にして、浴室換気用ファン1による換気風量Q1と、他室換気用ファン2による換気風量Q2の総和で、居室の常時換気を行う。ここで使用者が浴室へ入室したら、切替ダンパ14を図7に示す状態にして、浴室換気用ファン1による排気を止める。そして、他室換気用ファン2は換気風量Q1+Q2を出力させる。これにより、使用者が入室する前と同じだけの換気風量を確保する。使用者の退室を検知したら、両者の換気風量を元の状態に戻して、浴室と他室からの換気を行う。これにより入浴中でも、居室の換気風量を確保できるようになる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係る浴室空調装置を浴室の天井に設置した例を示す断面図
【図2】本発明の一実施形態に係るブロック構成図
【図3】本発明の一実施形態に係る浴室温度とモータ回転数のグラフ
【図4】本発明の一実施形態に係るタイミングチャート
【図5】本発明の一実施形態に係るタイミングチャート
【図6】本発明の一実施形態に係るタイミングチャート
【図7】本発明の別の一実施形態に係る浴室空調装置を浴室の天井に設置した例を示す断面図
【図8】従来の一実施形態に係る浴室空調装置を浴室の天井に設置した例を示す断面図
【図9】従来の一実施形態に係るブロック構成図
【図10】本発明の一実施形態に係るタイミングチャート
【符号の説明】
A…浴室
B…他室へ
C…屋外へ
D…天井
E…洗面所へ
1…浴室換気用ファン
2…他室換気用ファン
3…モータ
4…浴室使用検知部
5…制御部
6…浴室排気用風路
7…他室排気用風路
8…他室吸気ダクト用接続口
9…他室吸気ダクト
10…排気ダクト用接続口
11…排気ダクト
12…排気風路隔壁
13…加熱部
14…切替ダンパ
15…装置本体
16…化粧パネル
17…循環用風路
21…記憶部
22…通信線
23…操作部
24…リモコン用制御部
25…操作部
26…表示部
31…温度検出部
32…浴室使用検知の判定結果
33…浴室換気風量の動き
34…閾値温度
51…他室用排気ダンパ
57…他室換気風量の動き
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bathroom air conditioner mainly installed on a ceiling of a bathroom or the like to ventilate a room.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a bathroom air conditioner, it is generally known that the air in a bathroom and the air in another room are exhausted by a single motor, which is mainly installed on a ceiling of the bathroom (for example, Patent Document 1). 1).
FIG. 3 is a block diagram showing the conventional switching of the bathroom ventilation air volume.
As shown in FIG. 3, the bathroom use detecting means is a bathroom lighting switch installed in a washroom. The user turns on the bathroom lighting switch before entering the bathroom, so that the apparatus main body is connected to the user. Detect entry. Based on this information, the bathroom ventilation air volume is temporarily switched to the ventilation air volume during bathing. In this case, the ventilation air volume during bathing is a fixed value, and individual differences between bathers and the situation of ambient temperature are not considered.
Further, as shown in a sectional view in which the bathroom air conditioner of the related art shown in FIG. 8 is installed on the ceiling of the bathroom, the ventilation damper 51 for other rooms is closed to perform ventilation during bathing without performing ventilation in other rooms. There was a thigh.
[0003]
[Patent Document 1]
JP 2000-161751 A
[Problems to be solved by the invention]
However, in the conventional bathroom air conditioner, there was a method of temporarily switching the ventilation air volume in conjunction with a bathroom lighting switch.However, when taking a bath without using bathroom lighting in the daytime or the like, a cold draft is used. It was difficult to reduce.
Also, since the temperature of the bathroom is different if the bathing season and time are different, even if the same user is cold with a certain amount of ventilation airflow, and in summer, it is better to take a bath without reducing the ventilation airflow, In some cases, it was hard to say that it was appropriate to lower the ventilation air volume because it was comfortable.
[0005]
The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a bathroom air conditioner that allows a user who has entered a bathroom during bathroom ventilation to be able to take a bath without feeling a cold draft. To provide.
[0006]
[Solution to solve the problem and its operation and effects]
The present invention relates to a bathroom ventilation fan that draws in air in a bathroom and discharges it to the outside, a fan for other room ventilation that draws in air in a room other than the bathroom and discharges it to the outside, the fan for bathroom ventilation and the other room. A motor that commonly drives the ventilation fan, a temperature detection unit that detects the room temperature in the bathroom built in the bathroom air conditioner, and sets the output value of the temperature detection unit that has continued for a predetermined time or more as a temperature reference level, When the output value of the temperature detection unit is larger than the temperature reference level by a predetermined value or more for a predetermined time, the bathroom use detection unit that determines that the bathroom is in use, and controls the temperature detection unit, the bathroom use detection unit, and the motor. In the bathroom air conditioner having a control unit, the control unit includes the motor rotation speed table corresponding to the temperature reference level, and according to an output of the bathroom use detection unit. It was decided to set the rotation speed corresponding to the rotational speed table for the motor.
According to this configuration, since attention is paid to the temperature of the bathroom, a sudden change in the bathroom temperature due to a hot water or a shower used for bathing is detected as a bathroom use by a change in the output of the temperature detection unit for bathroom ventilation. .
Further, by detecting the bathroom temperature of the temperature detecting section, it is possible to estimate a difference in season or a difference between day and night, so that it is possible to set an optimal ventilation air volume in accordance with an ambient temperature.
[0007]
Further, the control unit has a timing unit that counts a predetermined time, and based on the information of the bathroom use detection unit, based on the information of the bathroom use detection unit, in the bathroom air conditioner including a control unit that temporarily changes the bathroom ventilation air volume, the control unit, After returning from the ventilation air volume during bathing to the normal bathroom ventilation air volume, a return is started after a predetermined period of time.
According to this configuration, when the family takes a continuous bath, the previous user leaves the bathroom and immediately returns to the originally set bathroom ventilation air volume, so that the temperature of the bathroom does not drop. The next user can use it warm.
Further, a bathroom exhaust damper is provided downstream of the bathroom ventilation fan to block ventilation from the bathroom, and the control unit closes the bathroom exhaust damper, and adjusts the amount of ventilation air of the other room ventilation fan to the bathroom. A bathroom air conditioner characterized in that it is operated by increasing the amount of ventilation air from the room.
According to this configuration, the same amount of ventilation air can be ventilated using the other room ventilation fan even after the user enters the bathroom, even after the user enters the bathroom.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a sectional view showing an example in which a bathroom air conditioner according to one embodiment of the present invention is installed on a ceiling of a bathroom.
As shown in FIG. 1, the device of the present invention includes a device body 15 inserted and installed in an opening of a ceiling D of a bathroom A, and a decorative panel 16 attached to the device body 15 facing the bathroom A. . The interior of the apparatus main body 15 is separated by the exhaust air passage partition 12 into the circulation air passage 17, the bathroom exhaust air passage 6, and the other room exhaust air passage 7. The circulation air path 17 is an air path for sucking air in the bathroom A and sending it into the bathroom A again as indicated by a broken line arrow, and the bathroom exhaust air path 6 sucks air in the bathroom A and supplies air for the exhaust duct. This is an air passage to be discharged to the connection port 10. The other-room exhaust air path 7 is an air path that sucks air in the other room B, passes through the other-room intake duct 9 and the other-room intake duct connection port 8, and discharges the air to the exhaust duct connection port 10. . The exhaust air from the bathroom exhaust air path 6 and the exhaust air from the other room exhaust air path 7 that have joined at the exhaust duct connection port 10 are exhausted to the outside C through the exhaust duct 11.
[0009]
The motor 3 drives the bathroom ventilation fan 1 that sends air to the circulation air passage 17 and / or the bathroom exhaust air passage 6, and the other room ventilation fan 2 that sends air to the other room exhaust air passage 7. . Switching between the circulation air passage 17 and the bathroom exhaust air passage 6 is performed by the switching damper 14. The circulation air passage 17 is provided with a heating unit 13 and sends heated air to the bathroom A. The bathroom exhaust air path 6 includes a bathroom use detection unit 4 that detects a use state of the bathroom. The bathroom use detection unit 4 is an example of a temperature detection unit that detects the temperature of the bathroom.
It should be noted that the intake air from the washroom may be shared with the bathroom exhaust air passage 6 or the other room exhaust air passage 7, of course.
[0010]
FIG. 2 is a block configuration diagram according to an embodiment of the present invention.
As shown in FIG. 2, the control unit 5 inside the apparatus main body 15 controls the motor 3, the bathroom use detection unit 4, the storage unit 21, the heating unit 13, and the switching damper 14. Further, the control unit 5 communicates via a communication line 22 with a remote control unit 24 inside the remote control, which is an operation unit 23 that issues an operation instruction to the apparatus main body 15. The remote control unit 24 receives a signal from the operation unit 25 that receives a driving intention of the user, and displays the driving state on the display unit 26.
To change the setting of the ventilation air volume during bathing by operating the remote control installed at a low place without touching the bathroom air conditioner installed at a high place, because the setting is changed by the operation unit that gives the operation instruction of the bathroom air conditioner Easy.
[0011]
Here, the operation of the present bathroom air conditioner will be briefly described.
In a state where the user is not bathing, the air in the entire living room sucked from the bathroom A and the other room B is exhausted to the outdoor C by the bathroom ventilation fan 1 and the other room ventilation fan 2 driven by the motor 3. I have. When the user starts bathing with the bathroom ventilation air volume from the bathroom A in this state, the air in the living room, which is sucked from the gusset of the bathroom door (not shown), gives the user a cold sensation called cold draft. . Therefore, focusing on the temperature of the bathroom, a sudden change in the bathroom temperature caused by a hot water beam or a shower, which is used when taking a bath, is based on an output change of a temperature detection unit for ventilation of the bathroom. Detects that he has entered the bathroom and has begun bathing.
FIG. 3 is a graph of a bathroom temperature and a motor speed according to an embodiment of the present invention.
As shown in FIG. 3, a motor rotation speed according to the bathroom temperature is defined. The control unit includes a rotation speed table shown in the graph, and sets the rotation speed of the rotation speed table for the motor in accordance with the output of the bathroom use detecting means.
In this manner, the setting change is based on the temperature information of the temperature detector constantly monitored, so that if the temperature is low, the ventilation air volume during bathing is small, and if the temperature is high, the ventilation air volume during bathing is large.
According to this configuration, the amount of air intake from the bathroom door gull is controlled less in winter or on a cold late night, so that the cold draft is more difficult to feel. You don't have to feel hot while taking a bath because you control a lot. Since these setting changes are performed not manually but automatically based on the information of the temperature detection unit, the user is free from the trouble of setting and is easy to use.
The storage unit 21 is a permanent storage element that stores the changed ventilation air volume during bathing in the control unit 5. Even if the power is suddenly shut off, comfortable ventilation can be performed again during the next bath without losing the set value.
[0012]
In addition, cold drafts may be felt due to individual differences between users or changes in ambient temperature. Therefore, it is preferable that the ventilation air volume during bathing can be set according to the user's preference. Since the operation unit 23 installed on the wall of the washroom is located at a low place where the user can easily reach, it is convenient to change the set value of the ventilation air volume during bathing. While operating the operation unit 25 of the operation unit 23, the user sets the desired ventilation air volume during bathing while checking on the display unit 26. If the ambient temperature is low, such as in winter or midnight, the ventilation air volume during bathing should be set to a small value. If the ambient temperature is high, such as in summer or during the daytime, the ventilation air volume during bathing should be set high. The ventilation air volume during bathing set by the operation unit 23 is supplied to the control unit 5 via the communication line 22, and based on the information, the number of revolutions of the motor 3 is controlled to be lower or higher, and ventilation during bathing is performed. The air volume is as desired by the user.
[0013]
FIG. 4 is a timing chart according to one embodiment of the present invention.
As shown in FIG. 4, the temperature detector 31 is a thermistor that detects the temperature in the bathroom A, but can be used as one of the bathroom use detectors 4. The thermistor constantly monitors the temperature in the bathroom, and when the user enters the bathroom and starts bathing, the air temperature in the bathroom increases. If the thermistor detects a temperature change of Δt1 or more during the time ΔT1, the control unit 5 determines that the user has entered the room. Further, when the thermistor detects a temperature change of Δt2 or more during the time ΔT2, the control unit 5 determines that the user has left the room. The determination result 32 of the bathroom use detection shows the determination result of the control unit 5. The movement 33 of the bathroom ventilation air volume is determined by the control unit 5 based on the determination result 32 of the bathroom use detection and the threshold temperature 34 before the entrance is detected. The controller 5 has a threshold temperature 34 of 15 ° C., and if the temperature before bathing is 5 ° C., automatically changes the ventilation air volume during bathing to a small degree to reduce the number of revolutions of the motor 3. . As a result, cold drafts are less likely to be felt during bathing in the winter or late at night, and comfortable bathing can be performed.
[0014]
FIG. 5 is a timing chart according to one embodiment of the present invention.
In FIG. 5, the control unit 5 has a threshold temperature 34 of 15 ° C., and if the temperature before bathing is 25 ° C., the ventilation air volume during bathing is automatically changed to a larger value, and the rotation of the motor 3 is changed. Increase the number. As a result, it is difficult to feel cold drafts in summer or during the daytime bathing, so that a refreshing and comfortable bathing can be achieved.
[0015]
FIG. 6 is a timing chart according to an embodiment of the present invention.
As shown in FIG. 6, when the thermistor of the temperature detecting unit 31 detects a change in the temperature by Δt2 or more during the time ΔT2, the control unit 5 determines that the user has left the room. The movement 33 of the bathroom ventilation air volume returns the small ventilation air volume during bathing to the bathroom ventilation air volume after a predetermined time ΔT3 from the exit of the determination result 32 of the bathroom use detection. If the next user does not enter the room within the time of ΔT3, the operation is started from bathing with the bathroom ventilation air volume.
The chart below shows an example of the predetermined time ΔT4. Since the control unit 5 can change the control time from ΔT3 to ΔT4, the bath can be started with the ventilation air volume during bathing even when time is available from the previous user's exit to the next user's entrance. . This enables comfortable bathing in a bathroom that remains warm.
Further, since the storage unit 21 is a permanent storage element that stores a predetermined time for which the setting is changed in the control unit 5, even if the power is suddenly shut off, the set value is not lost and the next time is comfortable. Ventilation during bathing is possible.
[0016]
FIG. 7 is a sectional view showing an example in which a bathroom air conditioner according to another embodiment of the present invention is installed on a ceiling of a bathroom.
The apparatus of the present invention is different from FIG. 1 in that the switching damper 14 closes the bathroom exhaust air passage 6, and the heating operation or the bathroom air conditioner is in a standby state.
FIG. 10 is a timing chart according to an embodiment of the present invention.
FIG. 4 shows a movement 33 of the bathroom ventilation air volume and a movement 57 of the other room ventilation air volume. When there is no user in the bathroom, the switching damper 14 is set to the state shown in FIG. 1, and the ventilation air volume Q1 by the bathroom ventilation fan 1 and the ventilation air volume Q2 by the other room ventilation fan 2 are summed up to constantly ventilate the room. I do. Here, when the user enters the bathroom, the switching damper 14 is set to the state shown in FIG. 7 and the exhaust by the bathroom ventilation fan 1 is stopped. Then, the other room ventilation fan 2 outputs the ventilation air volume Q1 + Q2. As a result, the same ventilation air volume as before the user enters the room is secured. When the exit of the user is detected, the ventilation air volume of both is returned to the original state, and the ventilation from the bathroom and other rooms is performed. Thereby, even when taking a bath, it becomes possible to secure the ventilation air volume of the living room.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example in which a bathroom air conditioner according to an embodiment of the present invention is installed on a ceiling of a bathroom. FIG. 2 is a block configuration diagram according to an embodiment of the present invention. FIG. 4 is a timing chart according to one embodiment of the present invention. FIG. 5 is a timing chart according to one embodiment of the present invention. FIG. 6 is a timing chart according to one embodiment of the present invention. FIG. 7 is a sectional view showing an example in which a bathroom air conditioner according to another embodiment of the present invention is installed on the ceiling of a bathroom. FIG. 8 is a sectional view showing a conventional bathroom air conditioner according to one embodiment. FIG. 9 is a cross-sectional view showing an example of installation on a ceiling. FIG. 9 is a block diagram of a conventional embodiment. FIG. 10 is a timing chart of an embodiment of the present invention.
A ... Bathroom B ... To another room C ... Outdoor D ... Ceiling E ... To the washroom 1 ... Bathroom ventilation fan 2 ... Other room ventilation fan 3 ... Motor 4 ... Bathroom detection unit 5 ... Control unit 6 ... Bathroom exhaust Air flow path 7 ... Exhaust air path for other room 8 ... Connection port for other room intake duct 9 ... Other room intake duct 10 ... Connection port for exhaust duct 11 ... Exhaust duct 12 ... Exhaust air path partition wall 13 ... Heating unit 14 ... Switch Damper 15 Device main body 16 Decorative panel 17 Circulating air passage 21 Storage unit 22 Communication line 23 Operation unit 24 Remote control unit 25 Operation unit 26 Display unit 31 Temperature detection unit 32 Bathroom use Detection determination result 33: Movement of bathroom ventilation air volume 34: Threshold temperature 51: Exhaust damper 57 for other room 57: Movement of other room ventilation air volume

Claims (3)

浴室内の空気を吸いこみ屋外へ排出する浴室換気用ファンと、浴室以外の居室の空気を吸いこみ屋外へ排出する他室換気用ファンと、前記浴室換気用ファンと前記他室換気用ファンを共用駆動するモータとから成る、浴室空調装置に内蔵した浴室内の室温を検出する温度検出部と、所定時間以上継続した温度検出部の出力値を温度基準レベルとして設定し、前記温度基準レベルに対し温度検出部の出力値が所定値以上大きい場合が所定時間継続すると浴室使用中と判断する浴室使用検出手段と、前記温度検出部と前記浴室使用検出手段と前記モータを制御する制御部を有する浴室空調装置において、前記制御部は、前記温度基準レベルに対応する前記モータ回転数テーブルを有するとともに、前記浴室使用検出手段の出力に応じて、前記モータに対して回転数テーブルの回転数を設定することを特徴とする浴室空調装置。A bathroom ventilation fan that sucks air in the bathroom and discharges it to the outside, a fan for other room that sucks air in the room other than the bathroom and discharges it to the outside, the fan for bathroom ventilation and the fan for other room ventilation A temperature detector for detecting the room temperature in the bathroom built in the bathroom air conditioner, comprising a shared drive motor, and an output value of the temperature detector continued for a predetermined time or more set as a temperature reference level. On the other hand, when the output value of the temperature detecting section is larger than the predetermined value by more than a predetermined value, it has a bathroom use detecting means for determining that the bathroom is in use for a predetermined time, and a control section for controlling the temperature detecting section, the bathroom use detecting means and the motor. In the bathroom air conditioner, the control unit has the motor rotation speed table corresponding to the temperature reference level, and controls the motor in accordance with an output of the bathroom use detection unit. Bathroom air-conditioning apparatus characterized by setting the rotational speed of the rotational speed table for. 請求項1記載の浴室空調装置において、前記制御部は、所定の時間を計時する計時部を有するとともに、前記浴室使用検知部の情報に基づき、浴室換気風量を一時的に変更する制御部を備えた浴室空調装置において、制御部は入浴中換気風量から通常の浴室換気風量値へ復帰指示後、所定時間を置いた後復帰開始することを特徴とする浴室空調装置。The bathroom air conditioner according to claim 1, wherein the control unit includes a timer unit that measures a predetermined time, and includes a control unit that temporarily changes a bathroom ventilation air volume based on information of the bathroom use detection unit. In the above-mentioned bathroom air conditioner, the control unit instructs the return from the ventilation air volume during bathing to the normal bathroom ventilation air volume value, and after a predetermined time, starts the return. 請求項1記載の浴室空調装置において、前記浴室換気用ファンの下流に浴室からの換気を遮蔽する浴室用排気ダンパを備え、前記制御部は前記浴室用排気ダンパを閉じて、かつ前記他室換気用ファンの換気風量を、浴室からの換気風量分だけ大きくして運転することを特徴とする浴室空調装置。2. The bathroom air conditioner according to claim 1, further comprising a bathroom exhaust damper that shields ventilation from a bathroom downstream of the bathroom ventilation fan, wherein the control unit closes the bathroom exhaust damper and performs the other room ventilation. A bathroom air conditioner characterized by operating by increasing the ventilation air volume of a fan for use by the ventilation air volume from the bathroom.
JP2003081304A 2002-09-25 2003-03-24 Bathroom air conditioner Pending JP2004163080A (en)

Priority Applications (1)

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Applications Claiming Priority (2)

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JP2002279656 2002-09-25
JP2003081304A JP2004163080A (en) 2002-09-25 2003-03-24 Bathroom air conditioner

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Country Status (1)

Country Link
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