JP2013088022A

JP2013088022A - Ventilation device

Info

Publication number: JP2013088022A
Application number: JP2011228596A
Authority: JP
Inventors: Yusuke Urata; 裕介浦田; Ryuichi Nakamura; 隆一中村; Toshikazu Yoshizawa; 寿和吉澤
Original assignee: Panasonic Corp
Current assignee: Panasonic Corp
Priority date: 2011-10-18
Filing date: 2011-10-18
Publication date: 2013-05-13

Abstract

PROBLEM TO BE SOLVED: To prevent an operation defect even if a damper is exposed in an air duct for a long time.SOLUTION: A skeleton 4 buried and installed in a wall surface 3 in a room 2 of a house comprises an opening 5 which takes in air from an air duct within the wall surface, an air supply hole 6 which is opened in the room, a fan 8 which blows out air into the room, and a motor 9 which rotates the fan 8. The opening 5 includes a damper 10, a damper drive motor 11 which drives the damper 10, a limit switch 16 which detects an open and closed state of the damper 10, and a control section which controls operations of the fan 8 and damper drive motor 11. The control section also includes a fixture prevention means 20 by which a closing to opening time detected by the limit switch 16 is measured, a fixed state of the damper is detected from the measured time, and a damper opening/closing operation is performed changing a torque in the damper opening/closing operation in accordance with the fixed state, thereby removing dust. Thus, even if the damper is exposed in the air duct for the long time, an effect of preventing an operation defect of the damper can be obtained.

Description

本発明は、床下から導入して建築物を換気する換気装置に関する。 The present invention relates to a ventilation device that is introduced from under the floor to ventilate a building.

従来から、床下空気を室内へ取り入れて建物内部を換気する換気装置が種々開発されている。以下、その換気装置について図１を参照しながら説明する。 2. Description of the Related Art Conventionally, various ventilators have been developed that take the underfloor air into the room and ventilate the inside of the building. Hereinafter, the ventilation apparatus will be described with reference to FIG.

図８に示すように、室内壁面に設置する躯体１０１に、床下からの空気を取り入れる開口部１０２と、開口部１０２から室内までの送風路１０３と、室内に空気を送り出すファン１０４と、ファン１０４を回転させるモータ１０５と、ファン１０４をモータ１０５によって回転させることによって発生する風を室内に流入させるための給気口１０６を備えたことにより、床下からの空気を室内に取り込むものであった（例えば特許文献１参照）。 As shown in FIG. 8, an opening 102 for taking in air from under the floor, an air passage 103 from the opening 102 to the room, a fan 104 for sending air into the room, and a fan 104 The air 105 from the underfloor is taken into the room by providing the motor 105 for rotating the air and the air supply port 106 for allowing the air generated by rotating the fan 104 by the motor 105 to flow into the room ( For example, see Patent Document 1).

特開２００７−１３９２３２号公報JP 2007-139232 A

従来の換気装置では、機械換気による換気を行っていたが、昨今の省エネルギー化のニーズに答え機械換気と自然換気を切り替えて行うものも必要になった。そして、自然換気時の必要換気量を一定に保つために開口部にダンパを設け、温度条件に応じてダンパ角度を自動で調整するという換気装置を考えた。しかし、この換気装置では、ダンパが常に風路にさらされるため、塵埃の影響などによりダンパが固着してしまい、ダンパ角度を自動で調整することができなくなるという課題を発見した。さらに、ダンパがユーザから視認しにくい位置に設置されているため、ユーザが、ダンパが正常動作しているかどうかを確認することが困難であるという課題も見つかった。 Conventional ventilators used mechanical ventilation, but in response to the recent needs for energy saving, switching between mechanical ventilation and natural ventilation is also required. Then, in order to keep the necessary ventilation amount at the time of natural ventilation constant, a ventilator is provided in which a damper is provided at the opening and the damper angle is automatically adjusted according to the temperature condition. However, in this ventilator, since the damper is always exposed to the air path, the damper is fixed due to the influence of dust and the like, and it has been found that the damper angle cannot be adjusted automatically. Furthermore, since the damper is installed at a position where it is difficult for the user to visually recognize, it has been found that it is difficult for the user to check whether the damper is operating normally.

そこで本発明は、上記従来の課題を解決するものであり、長期間、ダンパが風路にさらされても、動作不良とならない換気装置を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a ventilator that does not malfunction even when a damper is exposed to an air passage for a long period of time.

そして、この目的を達成するために、本発明は、家屋の室内壁面に埋め込んで設置する躯体を有し、前記躯体には、側面に配置して壁面内の風路から空気を取り入れる開口部と、室内壁面に配置して室内に開口する給気口と、前記開口部から前記給気口までの送風路と、前記送風路に配置して室内に空気を送り出すファンと、前記ファンを強制的に回転させる電動機と、前記開口部には短冊状の板体で縦長に構成されたダンパと、前記ダンパを駆動するダンパ駆動電動機と、前記ダンパの開と閉の状態を検知する開閉検知手段と、前記ファンと前記ダンパ駆動電動機の動作を制御する制御部を備え、前記制御部は前記開閉検知手段の検知した閉から開までの時間を計測する計測手段と、前記計測手段の計測した移動時間からダンパの固着状態を検出する固着検出手段と、前記固着検出手段からの情報に応じて、ダンパ開閉動作時のトルクを変更してダンパ開閉動作を行うことによって塵埃を取り除く固着防止動作を実施する固着防止手段とを備えたものであり、これにより所期の目的を達成するものである。 In order to achieve this object, the present invention has a housing that is embedded and installed in the indoor wall surface of a house, and the housing includes an opening that is arranged on a side surface and takes air from an air passage in the wall surface. An air supply opening that is arranged on the wall surface of the room and opens into the room, an air passage from the opening to the air supply opening, a fan that is arranged in the air supply path and sends air into the room, and the fan is forced An electric motor that is rotated in a longitudinal direction, a damper that is vertically long with a strip-shaped plate at the opening, a damper drive motor that drives the damper, and an open / close detection means that detects the open / close state of the damper A control unit for controlling the operation of the fan and the damper drive motor, the control unit measuring a time from closing to opening detected by the open / close detection unit, and a moving time measured by the measurement unit Damper sticking state A sticking detection means for detecting, and a sticking prevention means for performing a sticking prevention operation for removing dust by performing a damper opening / closing operation by changing a torque during the damper opening / closing operation according to information from the sticking detection means. This is to achieve the intended purpose.

本発明によれば、家屋の室内壁面に埋め込んで設置する躯体を有し、前記躯体には、側面に配置して壁面内の風路から空気を取り入れる開口部と、室内壁面に配置して室内に開口する給気口と、前記開口部から前記給気口までの送風路と、前記送風路に配置して室内に空気を送り出すファンと、前記ファンを強制的に回転させる電動機と、前記開口部には短冊状の板体で縦長に構成されたダンパと、前記ダンパを駆動するダンパ駆動電動機と、前記ダンパの開と閉の状態を検知する開閉検知手段と、前記ファンと前記ダンパ駆動電動機の動作を制御する制御部を備え、前記制御部は前記開閉検知手段の検知した閉から開までの時間を計測する計測手段と、前記計測手段の計測した移動時間からダンパの固着状態を検出する固着検出手段と、前記固着検出手段からの情報に応じて、ダンパ開閉動作時のトルクを変更してダンパ開閉動作を行うことによって塵埃を取り除く固着防止動作を実施する固着防止手段とを備える構成にしたことにより、計測手段が計測したダンパの閉から開までの時間をもとに固着検出手段がダンパの固着状態を検出し、固着防止手段は、固着検出手段の情報により固着防止動作を実施することとなるのでとなるので、固着防止動作によってダンパ周囲に蓄積している埃等を取り除くことができ、ダンパが固着するのを防ぐという効果を得ることができる。 According to the present invention, the housing has a housing that is embedded in the indoor wall surface of the house, and the housing is disposed on the side surface and has an opening for taking in air from the air passage in the wall surface, and the indoor wall surface disposed on the indoor wall surface. An air supply opening that opens to the air supply opening, an air passage from the opening to the air supply opening, a fan that is arranged in the air supply passage and sends air into the room, an electric motor that forcibly rotates the fan, and the opening The section has a vertically long damper with a strip-shaped plate, a damper drive motor for driving the damper, an open / close detection means for detecting an open / close state of the damper, the fan, and the damper drive motor. A control unit for controlling the operation of the open / close detection unit, wherein the control unit detects a fixed state of the damper from a measuring unit that measures a time from closing to opening detected by the open / close detection unit, and a moving time measured by the measuring unit. Sticking detection means and front According to the information from the sticking detection means, the measuring means is provided with the sticking prevention means for performing the sticking prevention operation for removing dust by changing the torque during the damper opening and closing operation and performing the damper opening and closing operation. The sticking detection means detects the sticking state of the damper based on the measured time from the closing to the opening of the damper, and the sticking prevention means performs the sticking prevention operation based on the information of the sticking detection means. Therefore, dust and the like accumulated around the damper can be removed by the sticking prevention operation, and an effect of preventing the damper from sticking can be obtained.

本発明の実施の形態１の換気装置を示す斜視図The perspective view which shows the ventilation apparatus of Embodiment 1 of this invention 同換気装置の上方からの断面構成図Cross-sectional configuration diagram of the ventilator from above 同換気装置の斜視図Perspective view of the ventilation device 同換気装置の制御部とアクチュエータのブロック図Block diagram of the control unit and actuator of the ventilation device 同換気装置の移動時間と固着防止動作要否の関係図Relationship diagram between movement time of the ventilator and necessity of sticking prevention operation 同換気装置のダンパ移動時間と固着防止動作時トルクの関係図Relationship diagram between damper moving time and torque for preventing sticking 本発明の実施の形態２の換気装置を示す斜視図The perspective view which shows the ventilation apparatus of Embodiment 2 of this invention. 背景技術での換気装置の情報からの断面構成図Cross-sectional configuration diagram from information on ventilator in background art

本発明の請求項１記載の換気装置は、家屋の室内壁面に埋め込んで設置する躯体を有し、前記躯体には、側面に配置して壁面内の風路から空気を取り入れる開口部と、室内壁面に配置して室内に開口する給気口と、前記開口部から前記給気口までの送風路と、前記送風路に配置して室内に空気を送り出すファンと、前記ファンを強制的に回転させる電動機と、前記開口部には短冊状の板体で縦長に構成されたダンパと、前記ダンパを駆動するダンパ駆動電動機と、前記ダンパの開と閉の状態を検知する開閉検知手段と、前記ファンと前記ダンパ駆動電動機の動作を制御する制御部を備え、前記制御部は前記開閉検知手段の検知した閉から開までの時間を計測する計測手段と、前記計測手段の計測した移動時間からダンパの固着状態を検出する固着検出手段と、前記固着検出手段からの情報に応じて、ダンパ開閉動作時のトルクを変更してダンパ開閉動作を行うことによって塵埃を取り除く固着防止動作を実施する固着防止手段とを備えたことを特徴とする換気装置である。これにより、計測手段が計測したダンパの閉から開までの時間をもとに固着検出手段がダンパの固着状態を検出し、固着防止手段は、固着検出手段の情報により固着防止動作を実施することとなるので、固着防止動作によってダンパ周囲に蓄積している埃等を取り除くことができ、ダンパが固着するのを防ぐという効果を奏する。 The ventilator according to claim 1 of the present invention has a housing that is embedded and installed in the indoor wall surface of a house, and the housing is provided with an opening that is arranged on a side surface and takes in air from an air passage in the wall surface, An air supply opening that is arranged on the wall surface and opens into the room, an air supply path from the opening to the air supply opening, a fan that is arranged in the air supply path and sends air into the room, and the fan is forcibly rotated An electric motor to be driven, a damper having a strip-like plate body in the opening, a damper driving motor for driving the damper, an open / close detecting means for detecting an open / closed state of the damper, A control unit that controls the operation of the fan and the damper driving motor, the control unit measuring a time from closing to opening detected by the open / close detection unit; and a damper based on the movement time measured by the measurement unit Detect sticky state An adhesion detecting means, and an adhesion preventing means for performing an adhesion preventing operation for removing dust by changing the torque during the damper opening / closing operation and performing the damper opening / closing operation in accordance with information from the adhesion detecting means. It is a ventilator characterized by. Thereby, the sticking detection means detects the sticking state of the damper based on the time from the closing to the opening of the damper measured by the measuring means, and the sticking prevention means performs the sticking prevention operation based on the information of the sticking detection means. Thus, dust and the like accumulated around the damper can be removed by the sticking prevention operation, and the damper is prevented from sticking.

また、制御部に前記固着検出手段がダンパ固着と判断した場合に、ダンパが固着したことを報知する固着報知手段を備えるという構成にしてもよい。これにより、着検出手段ダンパが固着したこと判断した場合に、固着表示手段がユーザに報知することとなるので、ユーザにダンパが固着したことを認識させ、メンテナンスを促すことで自然換気時の風量制御を行うことができるという効果を奏する。 Further, the controller may be provided with a sticking notification means for notifying that the damper is stuck when the sticking detection means determines that the damper is stuck. As a result, when it is determined that the landing detection means damper is stuck, the sticking display means informs the user, so that the user recognizes that the damper is stuck and prompts maintenance to increase the air volume during natural ventilation. There exists an effect that control can be performed.

以下、本発明の実施の形態について図面を参照しながら説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（実施の形態１）
図１に示すように、本発明の換気装置１は、家屋の室内２の壁面３に躯体４を埋め込んだ構成である。 (Embodiment 1)
As shown in FIG. 1, the ventilation apparatus 1 of this invention is the structure which embedded the housing 4 in the wall surface 3 of the room | chamber interior 2 of a house.

躯体４は図２に示すように、壁面３の風路から空気を取り入れる開口部５と、室内２の壁面３に配置して室内に開口する給気口６と、開口部５から給気口６までの送風路７と、送風路７に配置して室内に空気を送り出すファン８と、ファン８を強制的に回転させる電動機９を備える。開口部５には短冊状の板体で縦長に構成されたダンパ１０と、ダンパ１０を駆動するダンパ駆動電動機１１と、ダンパの開と閉の状態を検知する開閉検知手段（後述する）と、ファン８とダンパ駆動電動機１１の動作を制御する制御部１２を備える。 As shown in FIG. 2, the housing 4 has an opening 5 for taking in air from the air passage of the wall surface 3, an air supply port 6 disposed on the wall surface 3 of the room 2 and opening into the room, and an air supply port from the opening 5. 6 is provided with an air passage 7 up to 6, a fan 8 disposed in the air passage 7 and sending air into the room, and an electric motor 9 for forcibly rotating the fan 8. The opening 5 has a rectangular plate-like damper 10 that is vertically long, a damper drive motor 11 that drives the damper 10, and an open / close detection means (described later) that detects the open / close state of the damper, A control unit 12 that controls operations of the fan 8 and the damper drive motor 11 is provided.

ダンパ１０は図３に示すように、一枚の板体で構成され、開口部５に配置される。ダンパ１０は制御部１２からの命令により、運転停止時は室内２に空気を取り込まないようにダンパ１０を全閉とし、機械換気運転時は室内２に空気を取り込むためにダンパ１０を全開とするものである。 As shown in FIG. 3, the damper 10 is composed of a single plate and is disposed in the opening 5. According to a command from the control unit 12, the damper 10 is fully closed so that air is not taken into the room 2 when the operation is stopped, and the damper 10 is fully opened so that air is taken into the room 2 during mechanical ventilation operation. Is.

次に、図４を用いて制御部１２について説明する。制御部１２は室内温度を計測する室温センサ１３と、室外温度を計測する室外センサ１４と、室温センサ１３と室外センサ１４が計測した温度差を計算する温度差計算部１５を有し、前記温度差計算部１５からの情報に応じてファン８の運転と、前記ダンパ１０の開度を変更するものである。 Next, the control unit 12 will be described with reference to FIG. The control unit 12 includes a room temperature sensor 13 that measures an indoor temperature, an outdoor sensor 14 that measures an outdoor temperature, and a temperature difference calculation unit 15 that calculates a temperature difference measured by the room temperature sensor 13 and the outdoor sensor 14. The operation of the fan 8 and the opening degree of the damper 10 are changed according to information from the difference calculation unit 15.

また、制御部１２は図２に示すように、開閉検知手段としてリミットスイッチ１６をダンパ１０の開度が最小の位置と最大の位置にそれぞれ備えるものである。 Further, as shown in FIG. 2, the control unit 12 includes limit switches 16 as opening / closing detection means at positions where the opening of the damper 10 is minimum and maximum, respectively.

また、制御部１２は、本換気装置に電源投入後、一定時間を計測して一定時間経過後に制御部に一定時間経過したことを伝達するタイマ１７と、リミットスイッチ１６の信号からダンパ１０が閉から開までの時間を計測する計測手段１８と、計測手段１８の計測した時間からダンパ１０の固着状態を、固着防止動作必要、固着防止動作不要、固着防止動作不可、スイッチ故障の４種類に分類して検出する固着検出手段１９と、固着検出手段１９からの情報と、計測手段１８からの時間に応じて、ダンパ開閉動作時のトルクを変更してダンパ開閉動作を行うことによって塵埃を取り除く固着防止動作を実施する固着防止手段２０とを備えた構成とする。 In addition, the control unit 12 measures the fixed time after the power is supplied to the ventilator, and after the fixed time has passed, the control unit 12 closes the damper 10 based on the signal from the limit switch 16 and the timer 17 that transmits the fixed time to the control unit. The measuring means 18 for measuring the time from opening to opening, and the fixed state of the damper 10 based on the time measured by the measuring means 18 are classified into four types: sticking prevention operation required, sticking prevention operation unnecessary, sticking prevention operation disabled, and switch failure. The sticking detection means 19 to detect and the sticking to remove dust by performing the damper opening / closing operation by changing the torque during the damper opening / closing operation according to the information from the sticking detection means 19 and the time from the measuring means 18 The anti-adhesion means 20 for performing the preventing operation is provided.

上記のように構成された換気装置は機械換気運転時、制御部１２がダンパ１０を全開にし、電動機９がファン８を回転させ、床下と連通した壁面からの空気を開口部５から取り込み、給気口６から室内２へと吹き出すこととなる。さらに、電動機９の回転数を変更することで風量を変更することが可能となる。 In the ventilator configured as described above, during the mechanical ventilation operation, the control unit 12 fully opens the damper 10, the electric motor 9 rotates the fan 8, takes air from the wall surface communicating with the underfloor from the opening 5, and supplies it The air is blown out from the mouth 6 into the room 2. Further, the air volume can be changed by changing the rotation speed of the electric motor 9.

また、室内温と室外温の温度差がΔＴ以上になると、空気の揚力が増大して空気が流れやすくなるので、室内空気は部屋の隙間などから室外に抜けていくため、室内は給気口６を介して床下からの温度の低い空気を吸入することとなり、ファンを回転させることなく換気量が確保されるため、温度差検知手段がΔＴ以上を検出すると、制御部１２はファン８を停止させ、自然換気を行う。さらに、この自然換気時の換気量は温度差によって変化するため、給気口に設けられたダンパ１０の角度を調節することで、室内外の温度差によらず自然換気時の風量を一定にすることが可能となる。したがって、自然換気運転時は、温度差が大きいと自然換気量が増大するため、制御部１２はダンパ１０の開度を小さくし、部屋に流入する換気量を抑え、温度差が小さいと自然換気量は減少するため、制御部１２はダンパ１０の開度を大きくし、部屋に流入する換気量を増やすことができる。 Further, when the temperature difference between the room temperature and the room temperature becomes ΔT or more, the lift of the air increases and the air easily flows. Therefore, the room air flows out of the room through a gap in the room. 6, air having a low temperature from under the floor is sucked in via 6 and the ventilation amount is secured without rotating the fan. Therefore, when the temperature difference detecting means detects ΔT or more, the control unit 12 stops the fan 8. Let the natural ventilation. Furthermore, since the ventilation volume during natural ventilation varies depending on the temperature difference, adjusting the angle of the damper 10 provided at the air supply port makes the air volume during natural ventilation constant regardless of the temperature difference between the inside and outside of the room. It becomes possible to do. Accordingly, during natural ventilation operation, if the temperature difference is large, the natural ventilation amount increases. Therefore, the control unit 12 reduces the opening amount of the damper 10 to suppress the ventilation amount flowing into the room. If the temperature difference is small, the natural ventilation is performed. Since the amount decreases, the control unit 12 can increase the opening of the damper 10 and increase the ventilation amount flowing into the room.

しかし、ダンパ１０は常に風路にさらされるため、塵埃などの影響により固着してしまうと、換気運転時、特に自然換気時に風量を一定にすることができなくなる。 However, since the damper 10 is always exposed to the air path, if it is fixed due to the influence of dust or the like, the air volume cannot be made constant during the ventilation operation, particularly during natural ventilation.

そこで、本実施の形態の換気装置において、換気装置１に電源投入してから一定時間経過後タイマ１７が一定時間経過したことを制御部１２に伝達し、一定時間経過したという情報を受け取った制御部１２はファン８が運転中の場合は風切音の影響を抑えるため、ファン８を停止させてから、ダンパ１０を閉動作させ、さらにダンパを開動作させ、制御部１２はリミットスイッチ１６からの情報によりダンパ閉から開を検知し、計測手段１８がダンパ閉から開までの時間を計測する。 Therefore, in the ventilator according to the present embodiment, the control unit 12 notifies the control unit 12 that the fixed time has elapsed after the elapse of a certain time since the power to the ventilator 1 was turned on, and received the information that the certain time has elapsed. When the fan 8 is in operation, the unit 12 stops the fan 8 and then closes the damper 10 and opens the damper in order to suppress the influence of wind noise. From the information of the damper, it is detected that the damper is closed to open, and the measuring means 18 measures the time from the damper closing to the opening.

計測手段１８は、閉部のリミットスイッチ１６がＯＮの場合はダンパ閉、開部のリミットスイッチ１６がＯＮの場合はダンパ開と判断し、制御部１２がダンパ１０を動作させたときに、ダンパの閉から開までの時間を計測する。なお、計測手段１８はダンパ１０の閉から開までの時間を計測することとしたが、開から閉までの時間を計測、もしくは開から閉、閉から開などのダンパ１０の往復動作の時間を計測することとしてもよい。 The measuring means 18 determines that the damper is closed when the closed limit switch 16 is ON, and that the damper is open when the open limit switch 16 is ON. When the control unit 12 operates the damper 10, the damper 18 Measure the time from closing to opening. Although the measuring means 18 measures the time from closing to opening of the damper 10, it measures the time from opening to closing, or the time of the reciprocating operation of the damper 10 such as opening to closing, closing to opening. It is good also as measuring.

固着検出手段１９の固着検出方法について、図５を用いて説明する。ダンパ１０が閉位置から開位置へと移動する移動時間は、ダンパ１０の固着度合いによって変化する。同じトルクでダンパ１０を動作させると、固着度合いが大きいほどダンパ１０動作時にかかる摩擦力が大きくなるため、移動時間は長くなる。例えばダンパの固着度合いが大きい場合は、移動時間は固着していない場合に対して長くなる。逆に、所定の時間よりも短くなることはないため、その場合はリミットスイッチ１６が故障していると考えられる。従って、計測手段１８によるダンパ閉から開までの時間がｔｓ未満の場合は、リミットスイッチ１６からの信号が異常であると判断し、スイッチ故障と判断する。ダンパ１０の閉から開までの時間がｔｓからｔＳまでの間の場合、ダンパ１０は固着していないと判断し、固着防止動作不要と判断する。ダンパ１０の閉から開までの時間がｔＳ以上の場合、ダンパ１０が固着していると判断し、固着防止動作必要と判断する。さらに、計測時間がＴｍ以上の場合、ダンパ１０が固着しており、固着防止動作不可と判断する。 The sticking detection method of the sticking detection means 19 will be described with reference to FIG. The moving time for the damper 10 to move from the closed position to the open position varies depending on the degree of sticking of the damper 10. When the damper 10 is operated with the same torque, the greater the degree of sticking, the greater the frictional force applied when the damper 10 is operated, and thus the movement time becomes longer. For example, when the degree of fixing of the damper is large, the movement time is longer than that when the damper is not fixed. On the other hand, since it does not become shorter than the predetermined time, in this case, it is considered that the limit switch 16 has failed. Therefore, when the time from the closing of the damper by the measuring means 18 to the opening is less than ts, it is determined that the signal from the limit switch 16 is abnormal and it is determined that the switch is faulty. When the time from closing to opening of the damper 10 is between ts and tS, it is determined that the damper 10 is not fixed, and it is determined that the anti-sticking operation is unnecessary. When the time from closing to opening of the damper 10 is tS or more, it is determined that the damper 10 is fixed, and it is determined that the sticking prevention operation is necessary. Further, when the measurement time is equal to or longer than Tm, it is determined that the damper 10 is fixed and the sticking prevention operation is impossible.

次に、固着防止手段２０の動作について、図６を用いて説明する。計測手段１８による計測時間がｔＳ未満の場合スイッチ異常もしくは固着防止動作不要のため、制御部１２は固着防止動作を行わない。また、計測時間がｔｍ以上の場合、ダンパ固着動作不可のため、制御部１２は固着防止動作を行わない。また、計測時間がｔＳ以上、ｔｍ未満の場合、ダンパ１０は固着動作必要のため制御部１２は、ｔＳ以上ｔ１未満の場合、トルクＴ１でダンパを開閉させ、計測時間がｔ１以上ｔ２未満の場合、トルクＴ２でダンパ１０を開閉させ、計測時間がｔ２以上ｔｍ未満の場合、トルクはＴ３でダンパ１０を開閉させ、上記固着防止動作後、所定位置に開く。高トルクで固着防止動作を行うことで、固着度合いが大きい場合でもダンパ周辺に蓄積している埃等を取り除くこととなり、長期間風路にさらされてもダンパの動作不良を防ぐことができる。 Next, operation | movement of the sticking prevention means 20 is demonstrated using FIG. When the measuring time by the measuring unit 18 is less than tS, the switch 12 does not perform the sticking prevention operation because the switch abnormality or the sticking prevention operation is unnecessary. Further, when the measurement time is tm or longer, the damper fixing operation is not possible, so the control unit 12 does not perform the sticking prevention operation. When the measurement time is tS or more and less than tm, the damper 10 needs a fixing operation. Therefore, when the measurement time is tS or more and less than t1, the control unit 12 opens and closes the damper with the torque T1, and the measurement time is t1 or more and less than t2. When the damper 10 is opened and closed with the torque T2 and the measurement time is not less than t2 and less than tm, the damper 10 is opened and closed with the torque T3, and is opened to a predetermined position after the sticking prevention operation. By performing the sticking prevention operation with high torque, dust or the like accumulated around the damper is removed even when the degree of sticking is large, and the malfunction of the damper can be prevented even when exposed to the air path for a long time.

このような構成により、ダンパの固着度合いに応じてダンパ動作時のトルクを変化させることで、ダンパが長期間に渡って風路にさらされてもダンパの動作不良を防ぐことができる。 With such a configuration, by changing the torque at the time of damper operation according to the degree of fixing of the damper, malfunction of the damper can be prevented even if the damper is exposed to the air passage for a long period of time.

（実施の形態２）
図７において図３と同様の構成要素については同一の符号を付し、その詳細な説明は省略する。 (Embodiment 2)
7, the same components as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

図７に示すように、制御部１２は固着報知手段として報知用ＬＥＤ２１を備えた構成とする。制御部１２は、固着検出手段１９がスイッチ故障、もしくは固着防止動作不可と判断し、固着防止動作を行わない場合に報知用ＬＥＤ２１を点灯させるものである。なお、固着報知手段として報知用ＬＥＤとしたが、操作部周辺にブザーを設けるという構成にしてもよい。 As shown in FIG. 7, the control part 12 is set as the structure provided with LED21 for alerting | reporting as adhesion alerting | reporting means. The controller 12 determines that the sticking detection means 19 is a switch failure or the sticking prevention operation is impossible, and turns on the notification LED 21 when the sticking prevention operation is not performed. Although the notification LED is used as the sticking notification means, a buzzer may be provided around the operation unit.

上記のような構成とすることで、ダンパ固着時にユーザに固着を報知することでメンテナンスの必要性を示し、ダンパの動作不良によって風量が確保できなくなるという問題を解決できる。 By adopting the above-described configuration, it is possible to solve the problem that the necessity of maintenance is indicated by notifying the user of the fixation when the damper is fixed, and the air volume cannot be secured due to the malfunction of the damper.

本発明にかかる換気装置は、固着度合いに応じた固着防止動作を行うことで、ダンパ周囲に蓄積している埃等を取り除き、ダンパが固着するのを防ぐことを可能とするものであるので、床下から導入して建築物を換気する換気装置として有用である。 The ventilator according to the present invention removes dust and the like accumulated around the damper by performing the sticking prevention operation according to the sticking degree, so that the damper can be prevented from sticking. It is useful as a ventilation device that is introduced from under the floor to ventilate buildings.

１換気装置
２室内
３壁面
４躯体
５開口部
６給気口
７送風路
８ファン
９電動機
１０ダンパ
１１ダンパ駆動電動機
１２制御部
１３室温センサ
１４室外センサ
１５温度差計算部
１６リミットスイッチ
１７タイマ
１８計測手段
１９固着検出手段
２０固着防止手段
２１報知用ＬＥＤ DESCRIPTION OF SYMBOLS 1 Ventilator 2 Room 3 Wall surface 4 Housing 5 Opening part 6 Air supply opening 7 Air supply path 8 Fan 9 Electric motor 10 Damper 11 Damper drive motor 12 Control part 13 Room temperature sensor 14 Outdoor sensor 15 Temperature difference calculation part 16 Limit switch 17 Timer 18 Measurement Means 19 Sticking detection means 20 Sticking prevention means 21 LED for notification

Claims

家屋の室内壁面に埋め込んで設置する躯体を有し、前記躯体には、側面に配置して壁面内の風路から空気を取り入れる開口部と、室内壁面に配置して室内に開口する給気口と、前記開口部から前記給気口までの送風路と、前記送風路に配置して室内に空気を送り出すファンと、前記ファンを強制的に回転させる電動機と、前記開口部には短冊状の板体で縦長に構成されたダンパと、前記ダンパを駆動するダンパ駆動電動機と、前記ダンパの開と閉の状態を検知する開閉検知手段と、前記ファンと前記ダンパ駆動電動機の動作を制御する制御部を備え、前記制御部は前記開閉検知手段の検知した閉から開までの時間を計測する計測手段と、前記計測手段の計測した移動時間からダンパの固着状態を検出する固着検出手段と、前記固着検出手段からの情報に応じて、ダンパ開閉動作時のトルクを変更してダンパ開閉動作を行うことによって塵埃を取り除く固着防止動作を実施する固着防止手段とを備えたことを特徴とする換気装置。 An enclosure that is embedded in an indoor wall surface of a house and is installed in the housing; an opening portion that is disposed on a side surface to take in air from an air passage in the wall surface; and an air supply opening that is disposed on the indoor wall surface and opens indoors An air passage from the opening to the air supply port, a fan that is arranged in the air passage and sends air into the room, an electric motor that forcibly rotates the fan, and a strip-like shape in the opening A vertically long damper made of a plate, a damper drive motor for driving the damper, an open / close detection means for detecting an open / closed state of the damper, and a control for controlling operations of the fan and the damper drive motor The controller includes a measuring unit that measures a time from closing to opening detected by the open / close detecting unit, a fixing detecting unit that detects a fixed state of the damper from the movement time measured by the measuring unit, and Adherence detection means In response to the information, ventilator being characterized in that a means for preventing carrying out the anti-sticking operation of removing dust by change the torque during the damper opening and closing operation performs the damper opening and closing operation.

請求項１に記載の換気装置は、制御部に前記固着検出手段がダンパ固着と判断した場合に、ダンパが固着したことを報知する固着報知手段を備えたことを特徴とする。 The ventilator according to claim 1 is characterized in that, when the sticking detection means determines that the damper is stuck, the sticking notifying means for notifying that the damper is stuck is provided in the control unit.