JP2010270978A - Simultaneous air supply and exhaust type ventilator - Google Patents

Simultaneous air supply and exhaust type ventilator Download PDF

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JP2010270978A
JP2010270978A JP2009123824A JP2009123824A JP2010270978A JP 2010270978 A JP2010270978 A JP 2010270978A JP 2009123824 A JP2009123824 A JP 2009123824A JP 2009123824 A JP2009123824 A JP 2009123824A JP 2010270978 A JP2010270978 A JP 2010270978A
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exhaust
panel
region
air supply
air
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JP5202434B2 (en
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Toshiaki Kawai
俊明 河合
Kohei Matsumoto
耕平 松本
Yoshihisa Suzuki
善久 鈴木
Shigemi Kobayashi
茂己 小林
Shigeki Nishimura
茂樹 西村
Shinsuke Shiomi
進介 塩見
Akira Hayashi
晃 林
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a simultaneous air supply and exhaust type ventilator capable of miniaturizing a ceiling panel by reducing a size of the simultaneous air supply and exhaust type ventilator, and improving workability in turning a control switch on a circuit board, and maintenance of circuit components. <P>SOLUTION: When a region of a circuit section positioned inside of a panel outer jacketing frame 2 is a first region, and a region excluding the first region, of the circuit section is a second region in a projection face from a lower face of the simultaneous air supply and exhaust type ventilator, a maintenance opening 24 is formed inside of the panel outer jacketing frame 2 in a state of facing the first region, and a control set switch 21 is disposed in the first region. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、同時給排形換気扇に関し、特に天井に固定された化粧パネルにて形成されるパネル吸込口から室内の空気を吸い込みながら、パネル吹出口から室内に空気を吹き出す同時給排形換気扇に関する。   The present invention relates to a simultaneous supply / exhaust type exhaust fan, and more particularly, to a simultaneous supply / exhaust type exhaust fan that blows air into a room from a panel outlet while sucking room air from a panel inlet formed by a decorative panel fixed to a ceiling. .

室内の温度や湿度の変動が少ない換気を実現するために、同時給排形換気扇を天井に取り付け、熱交換を行いながら同時給排を行う方法がある。   In order to realize ventilation with little fluctuation of indoor temperature and humidity, there is a method of simultaneous supply / discharge while attaching a simultaneous supply / exhaust type ventilation fan to the ceiling and exchanging heat.

このような同時給排形換気扇において、制御基板上にある制御設定スイッチの切り替え作業や回路部のメンテナンスを行う方法として、同時給排形換気扇の外装ケーシング下部の天井パネル開口部より外装ケーシング側面に配置されている回路部を外装ケーシング内に引き込んだ後に作業を行う構造がある。例えば、特開平11−248190号公報には天井面に設置された同時給排形換気扇が示されている。これによると、外装ケーシングと熱交換器の間に間隔を設け、その間隔を用いて回路部ケースを外装ケーシングに固定している回路部品取付板を取り外し、回路部ケースを外装ケーシング内に引き込むことで回路部品のメンテナンスを行うことができる構造が開示されている。
特開平11−248190号公報
In such a simultaneous supply / exhaust ventilation fan, as a method of switching the control setting switch on the control board and maintaining the circuit part, the ceiling panel opening at the bottom of the exterior casing of the simultaneous supply / exhaust ventilation fan is placed on the side of the exterior casing There is a structure in which work is performed after the arranged circuit part is drawn into the outer casing. For example, Japanese Patent Application Laid-Open No. 11-248190 discloses a simultaneous supply / exhaust ventilation fan installed on a ceiling surface. According to this, a space is provided between the outer casing and the heat exchanger, the circuit component mounting plate that fixes the circuit unit case to the outer casing is removed using the interval, and the circuit unit case is drawn into the outer casing. Discloses a structure capable of performing maintenance of circuit components.
JP-A-11-248190

しかしながら、特許文献1の技術によれば回路基板上にある制御スイッチの切り替えや回路部品のメンテナンスを行う場合には、必ず回路部品ケース全体を外装ケーシングから取り外し外装ケーシング内側に引き込んでから制御スイッチ切替え作業や電気部品交換などの作業をする必要があり、非常に手間の掛かる作業であった。そのため、竣工直後や、運用初期にたびたび発生する制御変更の要望に対し、外部リモコンからの通信で行うことができる制御設定以外に、制御基板上の設定スイッチの切り替えで行う制御設定もあり、その場合、制御基板上の制御設定スイッチの切り替えるだけの単純で容易な作業であっても、上記のように回路部ケースを外して内側に引き込まなければならず、更に作業時に手元が見えず手探状態で行わなければならず非常に手間が掛かってしまうという問題があった。更に、この同時給排形換気扇では、回路部ケース全体を外装ケーシングから取り外し外装ケーシング内側に引き込み、回路部ケースを外装ケーシングから取り出すための作業スペースを外装ケーシング内に設ける必要があり、その作業スペース分だけ外装ケーシングが大きくなることで同時給排形換気扇のサイズが大きくなってしまい、そのため天井パネルサイズも大きくなり、天井面の圧迫感が増すなどの天井面の意匠性が損なわれたり、同時給排形換気扇のサイズが大きくなることにより設置可能な場所が制限されるという問題点があった。   However, according to the technique of Patent Document 1, when switching the control switch on the circuit board or performing maintenance of the circuit component, the entire circuit component case must be removed from the outer casing and pulled into the outer casing before switching the control switch. It was necessary to perform work such as work and replacement of electrical parts, which was very time-consuming work. Therefore, in addition to the control settings that can be performed by communication from the external remote control for requests for control changes that frequently occur immediately after completion or at the beginning of operation, there are also control settings that are performed by switching setting switches on the control board. In this case, even if the work is simple and easy, simply switching the control setting switch on the control board, the circuit case must be removed and pulled inward as described above. There is a problem that it has to be done in a state and is very troublesome. Furthermore, in this simultaneous supply / exhaust type exhaust fan, it is necessary to provide a work space in the outer casing for removing the entire circuit case from the outer casing, drawing it into the outer casing, and taking out the circuit case from the outer casing. The size of the simultaneous supply / exhaust ventilation fan increases by the size of the exterior casing, and the ceiling panel size also increases, and the design of the ceiling surface, such as an increased feeling of pressure on the ceiling surface, is impaired. There was a problem that the place where it can be installed was restricted by the increase in the size of the supply / exhaust ventilation fan.

本発明は、上記に鑑みてなされたものであって、同時給排形換気扇のサイズを小型化し天井パネルを小型化するとともに、回路基板上にある制御スイッチの切替え作業や回路部品のメンテナンス作業性を向上させることが可能な同時給排形換気扇を得ることを目的とする。   The present invention has been made in view of the above, and the size of the simultaneous supply / exhaust ventilation fan is reduced to reduce the ceiling panel, and the switching work of the control switch on the circuit board and the maintenance workability of the circuit parts are performed. An object is to obtain a simultaneous supply / exhaust ventilation fan capable of improving the efficiency.

上述した課題を解決し、目的を達成するために、本発明の同時給排形換気扇は、互いに独立した排気通風路と給気通風路とが形成された外装ケーシングと、前記外装ケーシングの下方に設けられ、パネル吸込口とパネル吹出口とが設けられた天井パネルと、前記外装ケーシングと前記天井パネルの間に設けられたパネル外装枠と、前記外装ケーシングに収容され、前記パネル吸込口に吸い込ませた吸込気流を前記排気通風路に送り、排気流として排気させる排気用送風機と、前記給気通風路に給気させた給気流を前記パネル吹出口に送り、吹出気流として吹き出させる給気用送風機と、前記排気流と前記給気流との間で熱交換を行わせる熱交換器と、前記排気用送風機と前記給気用送風機を運転制御する回路部と、を備える同時給排形換気扇において、下面側から見て前記回路部の前記パネル外装枠の枠内に位置する領域を第1の領域とし、第1の領域以外の前記回路部の領域を第2の領域とし、前記第1の領域を臨むように前記パネル外装枠の枠内にメンテナンス口を備えることを特徴とする。   In order to solve the above-described problems and achieve the object, a simultaneous supply / exhaust ventilation fan according to the present invention includes an exterior casing in which an exhaust ventilation path and an intake ventilation path independent from each other are formed, and a lower part of the exterior casing. A ceiling panel provided with a panel suction port and a panel outlet, a panel exterior frame provided between the exterior casing and the ceiling panel, and housed in the exterior casing and sucked into the panel suction port The exhaust air blower that sends the sucked airflow to the exhaust ventilation path and exhausts it as an exhaust flow, and the air supply that sends the airflow supplied to the air supply ventilation path to the panel outlet and blows it out as the blowout airflow A simultaneous supply / exhaust ventilation fan comprising a blower, a heat exchanger that exchanges heat between the exhaust flow and the supply air flow, and a circuit unit that controls the operation of the exhaust blower and the supply blower. In this case, a region located within the frame of the panel exterior frame of the circuit unit when viewed from the lower surface side is defined as a first region, a region of the circuit unit other than the first region is defined as a second region, and the first region A maintenance opening is provided in the frame of the panel exterior frame so as to face the area of 1.

この発明によれば、同時給排形換気扇のサイズを小型化し天井パネルを小型化するとともに、回路基板上にある制御スイッチの切替え作業性を向上させることができる。   According to the present invention, it is possible to reduce the size of the simultaneous supply / exhaust ventilation fan and the ceiling panel, and to improve the switching workability of the control switch on the circuit board.

本図は、この発明の実施の形態に係る同時給排形換気扇の外観構成を示した斜視図を示す。This figure shows the perspective view which showed the external appearance structure of the simultaneous supply / exhaust type ventilation fan based on Embodiment of this invention. 本図は、図1の同時給排形換気扇を吸込気流A1および吹出気流B2の流れる方向に沿って切断して示す断面図である。This figure is a cross-sectional view of the simultaneous supply / exhaust ventilation fan of FIG. 1 cut along the flow direction of the suction airflow A1 and the blowout airflow B2. 本図は本発明の実施の形態に係る同時給排形換気扇の内部構成の一例を外装ケーシング1や天井パネル3や一部の内部部品(指示なし)を透視して示す下面側からの斜視図である。This figure is a perspective view from the lower surface side showing an example of the internal configuration of the simultaneous supply / exhaust ventilation fan according to the embodiment of the present invention through the exterior casing 1, the ceiling panel 3, and some internal components (without instructions). It is. 本図は、図1の同時給排形換気扇の内部構成の一例を切り欠いて示す下面側からの斜視図である。This figure is a perspective view from the lower surface side showing an example of the internal configuration of the simultaneous supply / exhaust type ventilation fan of FIG. 本図は、図1の同時給排形換気扇の天井パネル3を取り外した状態を示す下面図である。This figure is a bottom view showing a state where the ceiling panel 3 of the simultaneous supply / exhaust type ventilation fan of FIG. 1 is removed. 本図は図5の同時給排形換気扇の回路部ケース部付近を示す側面図である。This figure is a side view showing the vicinity of the circuit case of the simultaneous supply / exhaust ventilation fan of FIG. 本図は図6の同時給排形換気扇のA−A断面からみた回路部ケース10部の断面図である。This figure is a cross-sectional view of the circuit part case 10 part seen from the AA cross section of the simultaneous supply / exhaust type ventilation fan of FIG. 本図は、この発明の実施の形態に係る同時給排形換気扇の回路部取付台20に配置された回路部品を示す下面図である。This figure is a bottom view showing circuit components arranged on the circuit unit mounting base 20 of the simultaneous supply / exhaust type ventilation fan according to the embodiment of the present invention. 本図は、図5の同時給排形換気扇のメンテナンスカバー25を取り外した状態を示す下面図である。This figure is a bottom view showing a state in which the maintenance cover 25 of the simultaneous supply / exhaust ventilation fan of FIG. 5 is removed. 本図は本発明の実施の形態に係る同時給排形換気扇を天井材19に設置した状態を示す下面側からの斜視図である。This figure is the perspective view from the lower surface side which shows the state which installed the simultaneous supply / exhaust type ventilation fan based on Embodiment of this invention in the ceiling material 19. FIG. 本図は図10の天井材19に設置した同時給排形換気扇で天井パネル3を外した状態を示す下面側からの斜視図である。This figure is a perspective view from the lower surface side showing a state in which the ceiling panel 3 is removed by a simultaneous supply / exhaust ventilation fan installed on the ceiling member 19 of FIG. 本図は本発明の実施の形態に係る同時給排形換気扇で、メンテナンス作業時に回路部取付台20を移動させた状態を示す下面図である。This figure is the bottom view which shows the state which moved the circuit part mounting base 20 at the time of a maintenance operation | work with the simultaneous supply / exhaust type exhaust fan which concerns on embodiment of this invention. 本図は図12のメンテナンス作業時に回路部取付台20を移動させた状態の同時給排形換気扇の回路部ケース部付近を示す側面図である。This figure is a side view showing the vicinity of the circuit unit case part of the simultaneous supply / exhaust type ventilation fan in a state where the circuit unit mounting base 20 is moved during the maintenance work of FIG.

SI 給気口
SO 排気口
UI パネル吸込口
UO パネル吹出口
A1 吸込気流
A2 排気流
B1 給気流
B2 吹出気流
1 外装ケーシング
2 パネル外装枠
3 天井パネル
4 本体開口部
5a 排気用電動機
5b 給気用電動機
6a 排気用羽根
6b 給気用羽根
7a 排気用送風機
7b 給気用送風機
8a 排気用ファンケーシング
8b 給気用ファンケーシング
9 熱交換器
10 回路部ケース
10a 回路部ケース側板
10b 奥面
12 セパレータ
14a 排気通風路
14b 給気通風路
15a 排気室
15b 給気室
16 除塵フィルタ
17 送風機吹出口
19 天井材
20 回路部取付台
21 制御設定スイッチ
22 制御基板
23 電気部品
24 回路部メンテナンス口
25 メンテナンスカバー
26a ガイドレール
26b ガイドレール
SI air supply port SO exhaust port UI panel suction port UO panel air outlet A1 suction airflow A2 exhaust air flow B1 airflow air B2 airflow 1 exterior casing 2 panel exterior frame 3 ceiling panel 4 main body opening 5a exhaust motor 5b air supply motor 6a Exhaust blade 6b Supply blade 7a Exhaust fan 7b Exhaust fan 8a Exhaust fan casing 8b Exhaust fan casing 9 Heat exchanger 10 Circuit unit case 10a Circuit unit case side plate 10b Back surface 12 Separator 14a Exhaust ventilation Road 14b Air supply ventilation path 15a Exhaust chamber 15b Air supply chamber 16 Dust removal filter 17 Blower outlet 19 Ceiling material 20 Circuit unit mounting base 21 Control setting switch 22 Control board 23 Electrical component 24 Circuit unit maintenance port 25 Maintenance cover 26a Guide rail 26b Guide rail

以下に、本発明に係る同時給排形換気扇の実施の形態を図面に基づいて説明する。なお、この実施の形態によりこの発明が限定されるものではない。
図1は、本発明に係る同時給排形換気扇の実施の形態1の外観構成を示す斜視図、図2は、図1の同時給排形換気扇を吸込気流A1および吹出気流B2の流れる方向に沿って切断して示す断面図である。図1において、同時給排形換気扇には、換気扇本体として6面を有する箱体の外装ケーシング1が設けられ、外装ケーシング1の下方には、パネル外装枠2を介して天井パネル3が取り付けられている。パネル外装枠2は、角筒状に構成される。また、天井パネル3は化粧パネルを用いている。
Embodiments of a simultaneous supply / exhaust ventilation fan according to the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments.
FIG. 1 is a perspective view showing an external configuration of a first embodiment of a simultaneous supply / exhaust ventilation fan according to the present invention, and FIG. 2 shows the simultaneous supply / exhaust ventilation fan of FIG. It is sectional drawing cut | disconnected and shown along. In FIG. 1, a simultaneous supply / exhaust ventilation fan is provided with a box-shaped outer casing 1 having six surfaces as a ventilation fan body, and a ceiling panel 3 is attached to the lower side of the outer casing 1 via a panel outer frame 2. ing. The panel exterior frame 2 is configured in a rectangular tube shape. The ceiling panel 3 uses a decorative panel.

外装ケーシング1の側面には、排気流A2を外装ケーシング1外に排気する排気口SOおよび給気流B1を外装ケーシング1内に給気する給気口SIが設けられている。また、外装ケーシング1の下方には、吸込気流A1を吸い込むパネル吸込口UIおよび吹出気流B2を吹き出すパネル吹出口UOが天井パネル3にて形成されている。   On the side surface of the exterior casing 1, there are provided an exhaust port SO for exhausting the exhaust flow A <b> 2 out of the exterior casing 1 and an air supply port SI for supplying the airflow B <b> 1 into the exterior casing 1. Further, a panel suction port UI for sucking the suction airflow A1 and a panel blowout port UO for blowing the blowout airflow B2 are formed in the ceiling panel 3 below the outer casing 1.

外装ケーシング1内には、パネル吸込口UIと排気口SOとの間の通風路を構成する排気通風路14aと、給気口SIとパネル吹出口UOとの間の通風路を構成する給気通風路14bとが、互いに独立して設けられている。   In the outer casing 1, an exhaust ventilation path 14 a that constitutes a ventilation path between the panel suction port UI and the exhaust outlet SO, and an air supply path that constitutes a ventilation path between the supply port SI and the panel outlet UO. The ventilation path 14b is provided independently of each other.

本同時給排形換気扇を屋内に設置する場合、天井パネル3を天井面19から室内側に突出させ、外装ケーシング1を天井裏に配置する。   When this simultaneous supply / exhaust ventilation fan is installed indoors, the ceiling panel 3 is protruded indoors from the ceiling surface 19 and the outer casing 1 is disposed behind the ceiling.

室内の吸込気流A1がパネル吸込口UIから吸い込まれると、吸込気流A1は、外装ケーシング1内に導かれる。そして、外装ケーシング1内に導かれた吸込気流A1は、排気通風路14aを通ることで排気口SOに導かれ、排気流A2として室外に排気される。   When the indoor suction airflow A1 is sucked from the panel suction port UI, the suction airflow A1 is guided into the outer casing 1. And the suction | inhalation airflow A1 guide | induced in the exterior casing 1 is guide | induced to the exhaust port SO by passing the exhaust ventilation path 14a, and is exhausted outdoors as the exhaust flow A2.

これと同時に、室外の給気流B1が給気口SIから給気されると、給気流B1は、外装ケーシング1内に導かれる。そして、外装ケーシング1内に導かれた給気流B1は、給気通風路14bを通ることでパネル吹出口UOに導かれ、吹出気流B2として室内に吹き出される。   At the same time, when the outdoor air supply air B1 is supplied from the air supply port SI, the air supply air B1 is guided into the outer casing 1. Then, the air supply air B1 guided into the outer casing 1 is guided to the panel outlet UO by passing through the air supply passage 14b, and is blown into the room as the air flow B2.

図3は、図1の同時給排形換気扇の内部構成の一例を透視して示す下面側からの斜視図、図4は、図3の同時給排形換気扇の内部構成の一例を切り欠いて示す下面側からの斜視図である。図3、図4とも図中の上部が下面側である。   FIG. 3 is a perspective view from the lower surface side showing an example of the internal configuration of the simultaneous supply / exhaust type ventilation fan of FIG. 1, and FIG. 4 is a cutaway example of the internal configuration of the simultaneous supply / exhaust type ventilation fan of FIG. 3. It is a perspective view from the lower surface side shown. 3 and 4, the upper part in the figure is the lower surface side.

図3〜図4において、外装ケーシング1の下面には、パネル吸込口UIに吸い込まれた吸込気流A1を外装ケーシング1内に取り入れたり、外装ケーシング1内に吸気された給気流B1を外装ケーシング1外に排出したりする本体開口部4が形成されている。そして、外装ケーシング1の下方には、パネル外装枠2を介して天井パネル3が本体開口部4を覆うように取り付けられている。ここで、天井パネル3には、パネル吸込口UIから吸い込まれた吸込気流A1と、パネル吹出口UOから吹き出される吹出気流B2とが交わるのを防止するセパレータ12が設けられている。なお、セパレータ12は、仕切り板または隔壁にて構成することができ、吸込気流A1の吸込方向および吹出気流B2の吹出方向と直交するように配置されている。   3 to 4, on the lower surface of the outer casing 1, the intake airflow A <b> 1 sucked into the panel suction port UI is taken into the outer casing 1, or the supply airflow B <b> 1 sucked into the outer casing 1 is supplied to the outer casing 1. A main body opening 4 for discharging to the outside is formed. A ceiling panel 3 is attached below the outer casing 1 so as to cover the main body opening 4 via the panel outer frame 2. Here, the ceiling panel 3 is provided with a separator 12 that prevents the suction airflow A1 sucked from the panel suction port UI from intersecting the blowout airflow B2 blown from the panel blowout port UO. In addition, the separator 12 can be comprised with a partition plate or a partition, and is arrange | positioned so as to be orthogonal to the suction direction of suction airflow A1, and the blowing direction of blowing airflow B2.

また、パネル外装枠2の両側には、吸込気流A1および吹出気流B2の天井パネル3に沿った進行方向を一方方向に規制する壁面2a、2bが形成されている。   Further, on both sides of the panel exterior frame 2, wall surfaces 2 a and 2 b are formed that restrict the advancing direction along the ceiling panel 3 of the suction airflow A1 and the blowout airflow B2 in one direction.

また、外装ケーシング1は、排気口SOから排気される排気流A2と、給気口SIから給気された給気流B1が外装ケーシング1内で交わらないように仕切られることで、排気通風路14aと給気通風路14bとが外装ケーシング1内に互いに独立して形成されている。そして、外装ケーシング1には、排気用送風機7a、給気用送風機7b、熱交換器9および回路部ケース10が収容されている。ここで、排気用送風機7aは、排気通風路14a中に配置されている。給気用送風機7bは、給気通風路14b中に配置されている。熱交換器9は、排気通風路14aおよび給気通風路14b上に配置されている。   Further, the outer casing 1 is partitioned so that the exhaust flow A2 exhausted from the exhaust port SO and the supply air flow B1 supplied from the air supply port SI do not intersect within the outer casing 1, so that the exhaust ventilation path 14 a. And the air supply passage 14b are formed in the outer casing 1 independently of each other. The exterior casing 1 accommodates an exhaust fan 7a, an air supply fan 7b, a heat exchanger 9, and a circuit unit case 10. Here, the exhaust fan 7a is disposed in the exhaust ventilation path 14a. The air supply blower 7b is disposed in the air supply ventilation path 14b. The heat exchanger 9 is disposed on the exhaust ventilation path 14a and the supply ventilation path 14b.

排気用送風機7aは、パネル吸込口UIに吸い込ませた吸込気流A1を排気通風路14aに送り、排気口SOから排気流A2として排気させる。なお、排気用送風機7aは、排気流A2を形成する排気用羽根6a、排気用羽根6aを回転させる排気用電動機5aおよび排気用羽根6aと排気用電動機5aを囲むように構成された渦巻状の排気用ファンケーシング8a等から構成されている。   The exhaust blower 7a sends the suction airflow A1 sucked into the panel suction port UI to the exhaust ventilation path 14a and exhausts it from the exhaust port SO as the exhaust flow A2. The exhaust fan 7a includes an exhaust blade 6a that forms the exhaust flow A2, an exhaust motor 5a that rotates the exhaust blade 6a, and a spiral shape that is configured to surround the exhaust blade 6a and the exhaust motor 5a. The exhaust fan casing 8a and the like are used.

また、給気用送風機7bは、給気口SIから給気通風路14bに給気させた給気流B1をパネル吹出口UOに送り、パネル吹出口UOから吹出気流B2として吹き出させる。なお、給気用送風機7bは、給気流B1を形成する給気用羽根6b、給気用羽根6bを回転させる給気用電動機5b(図5に示す)および給気用羽根6bと給気用電動機5bを囲むように構成された渦巻状の給気用ファンケーシング8b等から構成されている。また、給気用ファンケーシング8bには、給気流B1を吹き出す送風機吹出口17が天井パネル3に対向するように形成されている。   Further, the air supply blower 7b sends the air supply air B1 supplied from the air supply port SI to the air supply passage 14b to the panel outlet UO and blows out as the outlet air flow B2 from the panel outlet UO. The air supply fan 7b includes an air supply blade 6b that forms the air supply air flow B1, an air supply motor 5b that rotates the air supply blade 6b (shown in FIG. 5), and an air supply blade 6b that supplies air. It is composed of a spiral air supply fan casing 8b configured to surround the electric motor 5b. The air supply fan casing 8 b is formed with a blower outlet 17 that blows out the air supply air B <b> 1 so as to face the ceiling panel 3.

熱交換器9は、図4に示すように、互いに直交する排気用通風路と給気用通風路が交互に積層された6面体構造をなしていて、パネル吸込口UIに吸い込ませた吸込気流A1と、給気口SIから給気された給気流B1との間で熱交換を行わせることができる。そして、排気流A2については、天井パネル3に対して垂直方向に熱交換器9内の通風路が確保され、給気流B1については、吹出気流B2の吹出方向に熱交換器9内の通風路が確保されるように、熱交換器9が外装ケーシング1内に配置されている。   As shown in FIG. 4, the heat exchanger 9 has a hexahedral structure in which exhaust air passages and air supply air passages that are orthogonal to each other are alternately stacked, and a suction air flow sucked into the panel suction port UI. Heat exchange can be performed between A1 and the air supply air B1 supplied from the air supply port SI. And about the exhaust flow A2, the ventilation path in the heat exchanger 9 is ensured in the orthogonal | vertical direction with respect to the ceiling panel 3, and about the supply air flow B1, the ventilation path in the heat exchanger 9 is in the blowing direction of the blowing air flow B2. The heat exchanger 9 is disposed in the outer casing 1 so as to ensure the above.

ここで、給気口SIおよび排気口SOは、吸込気流A1の吸込方向および吹出気流B2の吹出方向と平行する方向に開口して、並べて配置されている。また、給気口SI、熱交換器9および給気用送風機7bは、吸込気流A1の吸込方向および吹出気流B2の吹出方向に沿ってこの順番で並べて配置されている。また、排気口SO、排気用送風機7aおよび回路部ケース10は、吸込気流A1の吸込方向および吹出気流B2の吹出方向に沿ってこの順番で並べて配置されている。すなわち、熱交換器9と回路部ケース10は外装ケーシング1の一方の対角位置に配置されるとともに、給気用送風機7bおよび排気用送風機7aは、外装ケーシング1の他方の対角位置に配置されている。   Here, the supply port SI and the exhaust port SO are arranged side by side so as to open in a direction parallel to the suction direction of the suction airflow A1 and the blowout direction of the blowout airflow B2. Further, the air inlet SI, the heat exchanger 9 and the air supply fan 7b are arranged in this order along the suction direction of the suction airflow A1 and the blowout direction of the blowout airflow B2. Further, the exhaust port SO, the exhaust fan 7a, and the circuit unit case 10 are arranged in this order along the suction direction of the suction airflow A1 and the blowout direction of the blowout airflow B2. That is, the heat exchanger 9 and the circuit unit case 10 are arranged at one diagonal position of the outer casing 1, and the air supply fan 7 b and the exhaust fan 7 a are arranged at the other diagonal position of the outer casing 1. Has been.

また、排気用羽根6aは、熱交換器9の積層方向の延長線上の位置に概ね配置されている。また、排気用電動機5aは熱交換器9側に配置されている。また、排気用ファンケーシング8aは、排気口SOに接続されている。   Further, the exhaust blade 6a is generally disposed at a position on an extension line of the heat exchanger 9 in the stacking direction. The exhaust motor 5a is disposed on the heat exchanger 9 side. The exhaust fan casing 8a is connected to the exhaust port SO.

また、給気口SIと熱交換器9との間には、給気流B1の除塵を行う給気側除塵フィルタ16が設置されている。また、パネル外装枠2にて仕切られた外装ケーシング1下の空間がセパレータ12にて2分割されることで、排気通風路14aに通じる排気室15aと給気通風路14bに通じる給気室15bが形成されている。   In addition, an air supply side dust removal filter 16 that performs dust removal of the airflow B1 is installed between the air supply port SI and the heat exchanger 9. Further, the space under the outer casing 1 partitioned by the panel outer frame 2 is divided into two by the separator 12, so that the exhaust chamber 15a that leads to the exhaust vent passage 14a and the supply chamber 15b that leads to the supply vent passage 14b. Is formed.

そして、排気用電動機5aおよび給気用電動機5bにて排気用羽根6aおよび給気用羽根6bがそれぞれ回転されると、室内の吸込気流A1がパネル吸込口UIから天井面に沿って水平に吸い込まれるとともに、室外の給気流B1が給気口SIから給気される。   Then, when the exhaust vane 6a and the supply vane 6b are respectively rotated by the exhaust motor 5a and the supply motor 5b, the indoor intake airflow A1 is drawn horizontally along the ceiling surface from the panel intake port UI. In addition, the outdoor air supply air B1 is supplied from the air supply port SI.

そして、吸込気流A1がパネル吸込口UIから天井面に沿って水平に吸い込まれると、セパレータ12にて前方が塞がれているため、吸込気流A1の進行方向が変えられ、排気流A2として熱交換器9に導かれる。また、室外の給気流B1が給気口SIから吸い込まれると、給気口SIの正面には熱交換器9が設置されているため、その給気流B1が熱交換器9に導かれる。そして、排気流A2および給気流B1が熱交換器9に導かれると、排気流A2と給気流B1との間で全熱交換が行われた後、排気流A2は排気用送風機7aに流入するとともに、給気流B1は給気用送風機7bに流入する。ここで、排気流A2と給気流B1との間で熱交換を行わせることで、排気熱を回収させることができ、冷暖房にかかる負荷を軽減することができる。   When the suction airflow A1 is sucked horizontally along the ceiling surface from the panel suction port UI, the forward direction is blocked by the separator 12, so the traveling direction of the suction airflow A1 is changed, and the exhaust airflow A2 is heated. Guided to exchanger 9. Further, when the outdoor airflow B1 is sucked from the air supply port SI, the heat exchanger 9 is installed in front of the air supply port SI, and therefore the airflow B1 is guided to the heat exchanger 9. When the exhaust flow A2 and the supply airflow B1 are guided to the heat exchanger 9, the exhaust flow A2 flows into the exhaust fan 7a after the total heat exchange is performed between the exhaust flow A2 and the supply airflow B1. At the same time, the air supply air B1 flows into the air supply fan 7b. Here, by performing heat exchange between the exhaust air flow A2 and the air supply air flow B1, exhaust heat can be recovered, and the load on air conditioning can be reduced.

そして、排気流A2が排気用送風機7aに流入すると、排気用送風機7aにて排気口SOの方向に導かれ、排気口SOから室外に排気される。一方、給気流B1が給気用送風機7bに流入すると、給気用送風機7bにて天井パネル3の方向に導かれ、送風機吹出口17を介して送出される。そして、給気流B1が送風機吹出口17を介して送出されると、前方は天井パネル3にて塞がれ、側方は壁面2a、2bにて塞がれ、後方はセパレータ12にて塞がれており、パネル吹出口UOから吹出気流B2として室内に吹き出される。   When the exhaust flow A2 flows into the exhaust fan 7a, the exhaust fan A is guided in the direction of the exhaust port SO by the exhaust fan 7a and exhausted from the exhaust port SO to the outside of the room. On the other hand, when the air supply air B1 flows into the air supply blower 7b, the air supply blower 7b guides the airflow B1 toward the ceiling panel 3 and sends it out through the air blower outlet 17. When the air supply air B1 is sent out through the blower outlet 17, the front is blocked by the ceiling panel 3, the sides are blocked by the wall surfaces 2a and 2b, and the rear is blocked by the separator 12. It is blown out into the room as a blown airflow B2 from the panel outlet UO.

図5は、図1に示す同時給排形換気扇の天井パネル3を取り外した状態を示す下面図である。図6は図5の同時給排形換気扇の回路部ケース部10付近を示す側面図である。図7は図6の同時給排形換気扇のA−A断面からみた回路ケース10部の断面図である。図8は回路部取付台に配置された回路部品を示す下面図である。図9は図5の同時給排形換気扇のメンテナンスカバー25を取り外した状態を示す下面図である。   FIG. 5 is a bottom view showing a state where the ceiling panel 3 of the simultaneous supply / exhaust ventilation fan shown in FIG. 1 is removed. FIG. 6 is a side view showing the vicinity of the circuit case 10 of the simultaneous supply / exhaust ventilation fan of FIG. FIG. 7 is a cross-sectional view of the circuit case 10 part seen from the AA cross section of the simultaneous supply / exhaust type ventilation fan of FIG. FIG. 8 is a bottom view showing circuit components arranged on the circuit unit mounting base. FIG. 9 is a bottom view showing a state where the maintenance cover 25 of the simultaneous supply / exhaust type ventilation fan of FIG. 5 is removed.

図5において、回路部ケース10は六面が金属で形成された箱体で、回路部ケース10の一面が給気用送風機7bの給気用ファンケーシング8bに近接し、回路部ケース10の他の一面が排気用送風機7aの排気用ファンケーシング8aに近接し、給気用送風機7b近傍の給気通風路14b中と排気用送風機7a近傍の排気通風路14a中に配置されている。また、排気通風路14aや給気通風路14bと回路部ケース10の内部の間、及び排気通風路14aと給気通風路14bの間は空気の移動がないように仕切られていて互いに独立している。図6〜図8において、回路部ケース10の内部には、回路ケース10を構成する奥面10bに台座状の回路部取付台20が設けられ、回路部取付台20には、制御設定スイッチ21や電子部品などが集約されている制御基板22と、トランスや電源端子台やモータの進相用コンデンサ等の電気部品23が各々集約されて並べて配置され、制御設定スイッチ21は制御基板22上で電気部品23から離れる側の位置に集約され配置されている。   In FIG. 5, the circuit unit case 10 is a box having six surfaces formed of metal, and one surface of the circuit unit case 10 is close to the air supply fan casing 8 b of the air supply fan 7 b, One surface is close to the exhaust fan casing 8a of the exhaust fan 7a, and is disposed in the supply air passage 14b in the vicinity of the supply fan 7b and in the exhaust ventilation path 14a in the vicinity of the exhaust fan 7a. The exhaust ventilation path 14a or the supply air ventilation path 14b and the inside of the circuit unit case 10 and the exhaust ventilation path 14a and the supply air ventilation path 14b are partitioned so as not to move air and are independent of each other. ing. 6 to 8, a pedestal-shaped circuit unit mounting base 20 is provided on the back surface 10 b constituting the circuit case 10 inside the circuit unit case 10, and a control setting switch 21 is provided on the circuit unit mounting base 20. And a control board 22 in which electronic components and the like are integrated, and electrical parts 23 such as a transformer, a power supply terminal block, and a phase advance capacitor of the motor are arranged in an integrated manner, and the control setting switch 21 is arranged on the control board 22. They are gathered and arranged at a position away from the electrical component 23.

図6において回路部ケース10の六面の内、給気通風路14b側の一面を構成する回路部ケース側板10aは、回路部ケース10の奥面10bに対向する一面(後述する回路部メンテナンス口24が設けられている面)の大きさが奥面10bより大きくなるように傾斜している。   6, among the six surfaces of the circuit unit case 10, the circuit unit case side plate 10 a constituting one surface on the air supply ventilation path 14 b side is one surface (a circuit unit maintenance port to be described later) facing the back surface 10 b of the circuit unit case 10. 24 is inclined so that the size of the surface 24 is larger than the depth 10b.

図9において、下面からの投影面で見ると、回路部ケース10はパネル外装枠2の枠内と枠外にまたがって位置している。回路部ケース10の奥面10bでは概ね左側の1/3はパネル外装枠2の枠内に位置し、残りの概ね右側2/3はパネル外装枠2の枠外に位置している。また回路部ケース10の一面(後述する回路部メンテナンス口24が設けられている面)では概ね左側の1/2がパネル外装枠2の枠内に位置し、残りの概ね右側1/2がパネル外装枠2の枠外に位置している。また、回路部ケース10の奥面10bに配置されている回路部取付台20もその概ね左側1/3の部分は第一の領域としてパネル外装枠2の枠内に位置し、残りの概ね右側2/3の部分は第二の領域としてパネル外装枠2の枠外に位置して外装ケーシング1の内部に配置されている。そして回路部取付台20の前記第一の領域には制御基板22の一部と制御基板22上に集約された制御設定スイッチ21が配置され、前記第二の領域には残りの制御基板22と集約された電気部品23が配置されている。   In FIG. 9, when viewed from the projection surface from the lower surface, the circuit unit case 10 is located across the inside and outside of the panel exterior frame 2. On the back surface 10 b of the circuit unit case 10, approximately 1/3 on the left side is located within the frame of the panel exterior frame 2, and the remaining approximately 2/3 is located outside the frame of the panel exterior frame 2. Further, on one surface of the circuit unit case 10 (the surface on which a circuit unit maintenance port 24 described later is provided), approximately ½ of the left side is located within the frame of the panel exterior frame 2, and the remaining approximately ½ of the right side is the panel. It is located outside the frame of the exterior frame 2. Further, the circuit part mounting base 20 arranged on the back surface 10b of the circuit part case 10 is also located in the frame of the panel exterior frame 2 as the first region, and the remaining left side is substantially the right side. The 2/3 portion is located outside the panel outer frame 2 as a second region and is arranged inside the outer casing 1. A part of the control board 22 and a control setting switch 21 aggregated on the control board 22 are arranged in the first area of the circuit unit mounting base 20, and the remaining control boards 22 are arranged in the second area. Aggregated electrical parts 23 are arranged.

そして回路部ケース10には、回路部ケース10内の前記第一の領域が臨むように開口部として回路部メンテナンス口24が設けられているが、回路部メンテナンス口24には、メンテナンスカバー25がネジで着脱可能に取り付けられて閉じられているため回路部ケース10の内部と排気通風路14aや給気通風路14bとは遮断されていて埃等が回路部品に侵入して堆積しないようになっている。また、回路部ケース10の六面の内、給気通風路14b側の一面を構成している回路部ケース側板10aは回路部メンテナンス口24の一辺も構成していてネジ締めにより回路部ケース10に固定され、ネジにより回路部ケース側板10aは着脱自在に設けられている。上記のように回路部ケース側板10aを傾斜させ回路部メンテナンス口24の大きさを前記第一の領域の2倍近くまで大きくすることで、回路部メンテナンス口24から手を中に入れ作業し易くしてある。   The circuit unit case 10 is provided with a circuit unit maintenance port 24 as an opening so that the first region in the circuit unit case 10 faces, but the circuit unit maintenance port 24 has a maintenance cover 25. Since it is detachably attached with a screw and closed, the inside of the circuit unit case 10 and the exhaust ventilation path 14a and the supply ventilation path 14b are cut off so that dust or the like does not enter and accumulate in the circuit components. ing. Of the six surfaces of the circuit unit case 10, the circuit unit case side plate 10 a constituting one surface of the air supply ventilation path 14 b also configures one side of the circuit unit maintenance port 24, and the circuit unit case 10 is tightened with screws. The circuit unit case side plate 10a is detachably provided by screws. As described above, the circuit unit case side plate 10a is inclined to increase the size of the circuit unit maintenance port 24 to nearly twice the size of the first region, so that it is easy to put a hand inside the circuit unit maintenance port 24 and work. It is.

また、図7に示すように回路部取付台20の両側部端面は回路部ケース10と回路部ケース10の内部に設けたガイドレール26a、26bによって各々挟まれているため外れることなくガイドレール26a、26bに沿って回路部取付台20が移動するように滑合されている。ここで回路部取付台20は回路部ケース側板10aにより当接されることで固定されている。   Further, as shown in FIG. 7, both end faces of the circuit unit mounting base 20 are sandwiched between the guide rails 26 a and 26 b provided inside the circuit unit case 10 and the circuit unit case 10, so that the guide rail 26 a does not come off. , 26b, so that the circuit unit mounting base 20 moves. Here, the circuit unit mounting base 20 is fixed by contacting with the circuit unit case side plate 10a.

次に制御基板22上の制御設定スイッチ21の設定切り替え変更、制御基板22や電気部品23のメンテナンス等を行う場合について説明する。図10は本発明に係る同時給排形換気扇の実際の設置状態を示す下面斜視図である。外装ケーシング1は天井材19の上方に配置され、天井内に埋め込まれている。外装ケーシング1の下面にパネル外装枠2が設けられ、天井材19に設けた長方形状の角穴(図示せず)にパネル外装枠2をはめ込み、外装ケーシング1とパネル外装枠2で天井材19を挟んでいる。天井パネル3はパネル外装枠2に固定されており、給気通風路14bの出口であるパネル吹出口UOおよびパネル吸込口UIが形成されている。   Next, the case where the setting change of the control setting switch 21 on the control board 22 and the maintenance of the control board 22 and the electrical component 23 are performed will be described. FIG. 10 is a bottom perspective view showing an actual installation state of the simultaneous supply / exhaust type ventilation fan according to the present invention. The exterior casing 1 is disposed above the ceiling material 19 and is embedded in the ceiling. A panel exterior frame 2 is provided on the lower surface of the exterior casing 1, the panel exterior frame 2 is fitted into a rectangular square hole (not shown) provided in the ceiling material 19, and the ceiling material 19 is formed by the exterior casing 1 and the panel exterior frame 2. Is sandwiched. The ceiling panel 3 is fixed to the panel exterior frame 2, and a panel outlet UO and a panel suction port UI that are outlets of the air supply passage 14 b are formed.

図11は、図10の設置状態で制御基板22上の制御設定スイッチ21の設定切り替え変更や制御基板22や電気部品23、熱交換器9等のメンテナンスを行うために天井パネル3を外した状態を示す下面斜視図である。上記制御設定変更作業やメンテナンス作業は、天井パネル3を外して現れるパネル外装枠2の枠内(開口部)から行うことができる。熱交換器9のメンテナンスはこの状態で熱交換器9を取り付けている固定部(図示せず)の操作で着脱できる。制御設定スイッチ21の変更および、制御基板22や電気部品23のメンテナンスは、パネル外装枠2の枠内(開口部)内に配置されているメンテナンスカバー25を固定しているネジを外すことでメンテナンスカバー25を取り外し、現れた回路部メンテナンス口24から行うことができる。図9に示すようにメンテナンスカバー25を外すと、回路部メンテナンス口24が現れ、この回路部メンテナンス口24から前記第一の領域への作業が可能になり、制御基板22上の制御設定スイッチ21の変更を簡単に行うことができる。この状態では、回路部メンテナンス口24から前記第二の領域が臨んでいないため、この状態では制御基板22や電気部品23のメンテナンス作業は行わない。   FIG. 11 shows a state in which the ceiling panel 3 is removed in order to perform setting change of the control setting switch 21 on the control board 22 and maintenance of the control board 22, the electrical component 23, the heat exchanger 9 and the like in the installation state of FIG. FIG. The control setting changing work and the maintenance work can be performed from the inside (opening) of the panel exterior frame 2 that appears after the ceiling panel 3 is removed. Maintenance of the heat exchanger 9 can be attached and detached by operating a fixing portion (not shown) to which the heat exchanger 9 is attached in this state. The change of the control setting switch 21 and the maintenance of the control board 22 and the electrical component 23 are performed by removing the screws fixing the maintenance cover 25 arranged in the frame (opening) of the panel exterior frame 2. The cover 25 can be removed, and the operation can be performed from the circuit portion maintenance port 24 that appears. As shown in FIG. 9, when the maintenance cover 25 is removed, the circuit unit maintenance port 24 appears, and the work from the circuit unit maintenance port 24 to the first area becomes possible, and the control setting switch 21 on the control board 22 is displayed. Can be easily changed. In this state, since the second region does not face from the circuit unit maintenance port 24, the maintenance work of the control board 22 and the electrical component 23 is not performed in this state.

次に前記第二の領域にある制御基板22や電気部品23のメンテナンス作業について説明する。
図12は制御基板22や電気部品23をメンテナンスする場合の回路部取付台20を第一の領域側に移動させた状態の下面図、図13は制御基板22や電気部品23をメンテナンスする場合の回路部取付台20を第一の領域側に移動させた状態の側面図を示す。前記第二の領域にある制御基板22や電気部品23のメンテナンスを行うためには先ず、熱交換器9を取り外し、熱交換器9を取り外した空間から給気用送風機7b(給気用電動機5b、給気用羽根6b、給気用ファンケーシング8b)を取り外し、回路部ケース側板10aが接している給気通風路14bに十分な空間を設ける。次に、回路部ケース側板10aが固定されているネジを外し回路部ケース側板10aを取り外す。回路部ケース側板10aは回路部取付台20が移動しないように当接させて固定させていたが、回路部ケース側板10aが取り除かれることにより固定が除かれるとともに、回路部ケース10の外部である給気通風路14bと連通した空間ができる。そこで、ガイドレール26a、26bに沿って回路部取付台20を給気通風路14b側へ移動させることで回路部取付台20全体が現れ、前記第二の領域にある制御基板22や電気部品23のメンテナンスが可能となる。
Next, the maintenance work of the control board 22 and the electrical component 23 in the second area will be described.
FIG. 12 is a bottom view of the state in which the circuit unit mounting base 20 is moved to the first region side when maintaining the control board 22 and the electrical component 23, and FIG. 13 is a view when maintaining the control board 22 and the electrical component 23. The side view of the state which moved the circuit part mounting base 20 to the 1st area | region side is shown. In order to perform maintenance on the control board 22 and the electrical component 23 in the second area, first, the heat exchanger 9 is removed, and the air supply fan 7b (the air supply motor 5b) is removed from the space from which the heat exchanger 9 is removed. The air supply blade 6b and the air supply fan casing 8b) are removed, and a sufficient space is provided in the air supply air passage 14b with which the circuit unit case side plate 10a is in contact. Next, the screw to which the circuit unit case side plate 10a is fixed is removed, and the circuit unit case side plate 10a is removed. The circuit unit case side plate 10a is fixed in contact with the circuit unit mounting base 20 so as not to move. However, the circuit unit case side plate 10a is removed by removing the circuit unit case side plate 10a and is outside the circuit unit case 10. A space communicating with the supply air passage 14b is formed. Therefore, the entire circuit unit mounting base 20 appears by moving the circuit unit mounting base 20 toward the air supply passage 14b along the guide rails 26a and 26b, and the control board 22 and the electrical components 23 in the second area appear. Maintenance is possible.

同時給排形換気扇の制御設定変更作業やメンテナンス作業は、パネル外装枠2の外側から行うことも考えられるが、天井材19に新たにメンテナンス用の穴を設けなければならず、天井面の意匠性が非常に劣ってしまうため、パネル外装枠2の内側から行う構造が不可欠である。制御設定変更作業やメンテナンス作業をパネル外装枠2の内側から行う構造では、下面からの投影面で見たとき、回路部ケース全体をパネル外装枠2の枠内に配置させようとすると回路部ケース10の大きさ分だけパネル外装枠2が大きくなってしまうが、本実施例のように、下面からの投影面で回路部ケース10をパネル外装枠2の枠内と枠外にまたがって配置させ、パネル外装枠2の枠内の回路部メンテナンス口24から制御基板22上の制御設定スイッチ21を臨ませることで、パネル外装枠2の大きさを制御基板22上の制御設定スイッチ21の切り替え作業だけに必要な最小限の大きさに抑えられ、天井材19に設ける長方形状の角穴(図示せず)や下面パネル3のサイズが大きくなることを抑制できるため、天井パネル3の大型化による圧迫感の増加等に伴い意匠性が損なわれることを防止できる。   The control setting change work and maintenance work of the simultaneous supply / exhaust ventilation fan may be performed from the outside of the panel exterior frame 2, but a new hole for maintenance must be provided in the ceiling material 19, and the design of the ceiling surface Therefore, a structure that is performed from the inside of the panel outer frame 2 is indispensable. In the structure in which the control setting change work and the maintenance work are performed from the inside of the panel exterior frame 2, when the entire circuit unit case is arranged in the frame of the panel exterior frame 2 when viewed from the projection surface from the lower surface, the circuit unit case Although the panel exterior frame 2 becomes larger by the size of 10, the circuit unit case 10 is arranged across the inside and outside of the panel exterior frame 2 on the projection surface from the lower surface as in this embodiment, By facing the control setting switch 21 on the control board 22 from the circuit unit maintenance port 24 in the frame of the panel outer frame 2, the size of the panel outer frame 2 can be changed only by switching the control setting switch 21 on the control board 22. Since the size of the rectangular square hole (not shown) provided in the ceiling material 19 and the size of the lower surface panel 3 can be suppressed, the size of the ceiling panel 3 can be increased. Possible to prevent the design property due to increase in tightness is impaired due.

回路部ケース10内の回路部品を設置後に作業する内容としては、概ね制御設定変更作業とメンテナンス作業がある。頻度の多い作業としては制御設定変更作業で、制御基板22上の制御設定スイッチ21の切り替え作業があり、頻度の少ない作業としてはメンテナンス作業で制御基板22や電気部品23の故障時の交換作業がある。本実施例によれば頻度の多い制御設定スイッチ21の切り替え作業は回路部ケース10全体を取り外す必要もなく短時間に簡単にできる。また作業頻度の少ない故障時の交換作業も回路部ケース10全体を取り外さなく必要もなく、回路部取付台20を移動させることで、簡単に作業することができる   The contents to be worked after installation of the circuit components in the circuit unit case 10 are roughly control setting change work and maintenance work. The frequent operation is a control setting changing operation, and the switching operation of the control setting switch 21 on the control board 22 is performed. The less frequent operation is a maintenance work in which the control board 22 and the electrical component 23 are exchanged when a failure occurs. is there. According to the present embodiment, the frequent switching operation of the control setting switch 21 can be easily performed in a short time without the need to remove the entire circuit unit case 10. In addition, the replacement work at the time of failure with a low work frequency is not necessary without removing the entire circuit unit case 10 and can be easily performed by moving the circuit unit mounting base 20.

また、回路部ケース10と排気用送風機7aや給気用送風機7b等とを近接して配置でき回路部ケースを引き込むためのスペースを外装パネル2内に設けておく必要もないため、そのスペース分だけ同時給排形換気扇全体の大きさを小型化でき、その分だけ天井パネルサイズ3も小型化でき、天井面の意匠性を向上させるとともに、設置可能な場所を増やすことができる。   In addition, since the circuit unit case 10 and the exhaust fan 7a, the air supply fan 7b, and the like can be arranged close to each other, it is not necessary to provide a space for drawing the circuit unit case in the exterior panel 2, and therefore, As a result, the size of the entire simultaneous supply / exhaust type ventilation fan can be reduced, and the ceiling panel size 3 can be reduced by that much, thereby improving the design of the ceiling surface and increasing the place where it can be installed.

以上のように本発明に係る同時給排形換気扇は、その製品サイズや天井パネルを小型化するとともに、回路基板上にある制御設定スイッチの切り替え作業や回路部品のメンテナンス作業性を向上させる方法に適している。   As described above, the simultaneous supply / exhaust ventilation fan according to the present invention is a method for reducing the product size and the ceiling panel, and improving the switching work of the control setting switch on the circuit board and the maintenance workability of the circuit parts. Is suitable.

Claims (4)

互いに独立した排気通風路と給気通風路とが形成された外装ケーシングと、前記外装ケーシングの下方に設けられ、パネル吸込口とパネル吹出口とが設けられた天井パネルと、前記外装ケーシングと前記天井パネルの間に設けられたパネル外装枠と、前記外装ケーシングに収容され、前記パネル吸込口に吸い込ませた吸込気流を前記排気通風路に送り、排気流として排気させる排気用送風機と、前記給気通風路に給気させた給気流を前記パネル吹出口に送り、吹出気流として吹き出させる給気用送風機と、前記排気流と前記給気流との間で熱交換を行わせる熱交換器と、前記排気用送風機と前記給気用送風機を運転制御する回路部と、を備える同時給排形換気扇において、下面側から見て前記回路部の前記パネル外装枠の枠内に位置する領域を第1の領域とし、第1の領域以外の前記回路部の領域を第2の領域とし、前記第1の領域を臨むように前記パネル外装枠の枠内にメンテナンス口を備えることを特徴とする同時給排形換気扇。   An exterior casing in which an exhaust ventilation path and an air supply ventilation path independent from each other are formed, a ceiling panel provided below the exterior casing, provided with a panel suction port and a panel outlet, the exterior casing, A panel exterior frame provided between the ceiling panels, an exhaust fan accommodated in the exterior casing and sucked into the panel suction port to be sent to the exhaust ventilation path and exhausted as an exhaust stream; An air supply blower for supplying an air supply air supplied to the air ventilation path to the panel outlet and blowing it out as an air outlet; a heat exchanger for performing heat exchange between the exhaust air flow and the air supply air; In a simultaneous supply / exhaust type exhaust fan including the exhaust fan and a circuit unit for controlling the operation of the air supply fan, a region located in the frame of the panel exterior frame of the circuit unit when viewed from the lower surface side A first region, a region of the circuit portion other than the first region is a second region, and a maintenance port is provided in the frame of the panel exterior frame so as to face the first region. Simultaneous supply / exhaust ventilation fan. 前記第1の領域には制御を設定する切り替えスイッチが配置されていることを特徴とする請求項1記載の同時給排形換気扇。   The simultaneous supply / exhaust ventilation fan according to claim 1, wherein a changeover switch for setting control is arranged in the first region. 前記回路部は移動可能に設け移動させることで、前記回路部の第2の領域が前記メンテナンス口に臨むことを特徴とする請求項1又は請求項2に記載の同時給排形換気扇。   The simultaneous supply / exhaust ventilation fan according to claim 1 or 2, wherein the circuit section is movably provided and moved so that the second region of the circuit section faces the maintenance port. 前記回路部は一つの取付台に取り付けられ、前記取付台が滑合構造により移動可能であることを特徴とする請求項3記載の同時給排形換気扇。   The simultaneous supply / exhaust type ventilation fan according to claim 3, wherein the circuit portion is attached to one mounting base, and the mounting base is movable by a sliding structure.
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