JP2020079505A - Electric blind - Google Patents

Electric blind Download PDF

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Publication number
JP2020079505A
JP2020079505A JP2018212690A JP2018212690A JP2020079505A JP 2020079505 A JP2020079505 A JP 2020079505A JP 2018212690 A JP2018212690 A JP 2018212690A JP 2018212690 A JP2018212690 A JP 2018212690A JP 2020079505 A JP2020079505 A JP 2020079505A
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Prior art keywords
solar radiation
side temperature
slat
receiving member
shade
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JP2018212690A
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JP7002436B2 (en
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正樹 小松
Masaki Komatsu
正樹 小松
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Mitsubishi Electric Building Solutions Corp
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Mitsubishi Electric Building Techno Service Co Ltd
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings

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  • Blinds (AREA)

Abstract

To increase a view through a slat while suppressing incidence of solar radiation into a room with a simple constitution.SOLUTION: An electric blind 100 attached to the indoor side of a window 10 has a slat 21, a drive motor 37, a solar radiation detection part 40, and a control part 31. The solar radiation detection part 40 includes a solar radiation receiving member 41 provided on the indoor side of the slat 21, a solar radiation side temperature sensor 42 mounted on the outdoor side face of the solar radiation receiving member 41, and a shade side temperature sensor 43 arranged in a space where solar radiation is blocked by the solar radiation receiving member 41. The control part 31 adjusts the rotation angle of the slat 21 based on the solar radiation side temperature detected by the solar radiation side temperature sensor 42 and the shade side temperature detected by the shade side temperature sensor 43.SELECTED DRAWING: Figure 1

Description

本発明は、窓の室内側に取り付けられてスラットの回転角度を調整可能な電動ブラインドの構造に関する。   BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an electric blind that is attached to the inside of a window and can adjust the rotation angle of a slat.

建物の窓に取り付けられたブラインドにおいて、スラットの角度を窓からの日射を遮蔽しながら眺望が最大になるような最適角度に調整する制御装置が提案されている。例えば、特許文献１には太陽高度と太陽方位角に基づいてスラットの角度を最適角度に制御する制御装置が提案されている。   In a blind attached to a window of a building, there has been proposed a control device that adjusts an angle of a slat to an optimum angle that maximizes a view while shielding sunlight from the window. For example, Patent Document 1 proposes a control device that controls the slat angle to an optimum angle based on the sun altitude and the sun azimuth angle.

特開２００６−２９０２７号公報JP, 2006-29027, A

特許文献１に記載された制御装置は、気象条件を考慮せず、太陽高度と方位角に基づいてスラットの角度を制御するので、例えば、曇っていて日射が室内に入射しないような場合、或いは、冬季で日射を室内に入射させても眺望を最大にしたいような場合にもスラットが閉じ方向に動作して眺望が制約される場合があった。   The control device described in Patent Document 1 controls the slat angle based on the sun altitude and the azimuth angle without considering the weather conditions. Therefore, for example, when it is cloudy and solar radiation does not enter the room, or In the winter, the slat may move in the closing direction and the view may be restricted even when the view is maximized even if the sunlight is incident on the room.

また、特許文献１に記載された制御装置は、太陽高度と方位角に基づいてスラットの最適角度を計算するので、演算量が多く装置が複雑になってしまうという問題があった。   Further, since the control device described in Patent Document 1 calculates the optimum angle of the slat based on the sun altitude and the azimuth, there is a problem that the amount of calculation is large and the device becomes complicated.

そこで、本発明は、簡便な構成で日射の室内への入射を抑制しつつブラインドを通した眺望を大きくすることを目的とする。   Therefore, an object of the present invention is to increase the view through the blind while suppressing the incidence of solar radiation into the room with a simple structure.

本発明の電動ブラインドは、窓の室内側に取り付けられる電動ブラインドであって、スラットと、前記スラットを回転駆動するモータと、前記スラットの室内側に設けられた日射検出部と、前記モータによって前記スラットの回転角度を調整する制御部と、を有し、前記日射検出部は、前記スラットの室内側に設けられた日射受部材と、前記日射受部材の室外側面に取り付けられた日射側温度センサと、前記日射受部材の室内側で前記日射受部材によって日射が遮られる空間に配置された日陰側温度センサと、を含み、前記制御部は、前記日射側温度センサによって検出した日射側温度と前記日陰側温度センサで検出した日陰側温度とに基づいて、前記スラットの回転角度を調整すること、を特徴とする。   The electric blind of the present invention is an electric blind that is attached to the indoor side of a window, and includes a slat, a motor that rotationally drives the slat, a solar radiation detector provided on the indoor side of the slat, and the motor, A solar radiation detecting member provided on the indoor side of the slat, and a solar radiation side temperature sensor attached to an outdoor side surface of the solar radiation receiving member. And a shade side temperature sensor arranged in a space where the sunlight is blocked by the sunlight receiving member on the indoor side of the solar radiation receiving member, and the control unit has the solar radiation side temperature detected by the solar radiation side temperature sensor. The rotation angle of the slat is adjusted based on the shade side temperature detected by the shade side temperature sensor.

本発明の電動ブラインドにおいて、前記制御部は、前記日射側温度と前記日陰側温度との温度差が第１閾値を超える場合には、前記スラットを閉める方向に回転させ、前記日射側温度と前記日陰側温度との温度差が前記第１閾値よりも小さい第２閾値以下の場合には、前記スラットを開ける方向に回転させてもよい。   In the electric blind of the present invention, when the temperature difference between the solar radiation side temperature and the shade side temperature exceeds a first threshold, the control unit rotates the slat in a direction to close the solar radiation side temperature and the solar radiation side temperature. When the temperature difference from the shade side temperature is equal to or less than the second threshold value that is smaller than the first threshold value, the slat may be rotated in the opening direction.

本発明の電動ブラインドにおいて、前記第１閾値は、夏に前記日射受部材に日射が当たった際の前記日射側温度と前記日陰側温度との温度差よりも小さく、冬に前記日射受部材に日射が当たった際の前記日射側温度と前記日陰側温度との温度差よりも大きいこととしてもよい。   In the electric blind of the present invention, the first threshold value is smaller than the temperature difference between the solar radiation side temperature and the shade side temperature when the solar radiation receiving member is exposed to the solar radiation in the summer, and the winter solar radiation receiving member has a smaller temperature difference. It may be larger than the temperature difference between the solar radiation side temperature and the shade side temperature when the solar radiation hits.

本発明は、簡便な構成で日射の室内への入射を抑制しつつブラインドを通した眺望を大きくできる。   INDUSTRIAL APPLICABILITY The present invention can increase the view through the blind while suppressing the incidence of solar radiation into the room with a simple structure.

実施形態の電動ブラインドを窓に取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the electric blind of embodiment to the window. 図１に示す電動ブラインドの系統図である。It is a systematic diagram of the electric blind shown in FIG. 図１に示す電動ブラインドのスラットの回転動作の説明図である。It is explanatory drawing of the rotation operation of the slat of the electric blind shown in FIG. 図１に示す電動ブラインドの日射検出部の詳細図である。It is a detailed view of the solar radiation detection unit of the electric blind shown in FIG. 図１に示す電動ブラインドの動作を示すフローチャートである。It is a flowchart which shows operation|movement of the electric blind shown in FIG.

以下、実施形態の電動ブラインド１００について説明する。図１に示すように電動ブラインド１００は建物の窓１０の窓ガラス１１の室内側に取り付けられている。電動ブラインド１００は、電動ユニット２０と、スラット２１と、昇降テープ２２と、ラダーコード２３，２４と、ボトムレール２５と、日射検出部４０とを含んでいる。   Hereinafter, the electric blind 100 of the embodiment will be described. As shown in FIG. 1, the electric blind 100 is attached to the indoor side of the window glass 11 of the window 10 of the building. The electric blind 100 includes an electric unit 20, a slat 21, a lifting tape 22, ladder cords 23 and 24, a bottom rail 25, and a solar radiation detector 40.

スラット２１は、電動ユニット２０に取り付けられた昇降テープ２２に回転自在に取り付けられている。スラット２１の室内側の端部と室外側の端部にはそれぞれ上下に延びるラダーコード２３，２４が取り付けられている。昇降テープ２２とラダーコード２３，２４の下端はボトムレール２５に接続されている。昇降テープ２２を上下させるとスラット２１とボトムレール２５とが昇降する。また、室内側、室外側の各ラダーコード２３，２４を上下逆方向に移動させるとスラット２１が開閉する。   The slats 21 are rotatably attached to the lifting tape 22 attached to the electric unit 20. Ladder cords 23 and 24 extending vertically are attached to the indoor end and the outdoor end of the slat 21, respectively. The lower ends of the lifting tape 22 and the ladder cords 23 and 24 are connected to the bottom rail 25. When the lifting tape 22 is moved up and down, the slats 21 and the bottom rail 25 move up and down. Also, when the indoor and outdoor ladder cords 23, 24 are moved upside down, the slats 21 are opened and closed.

図２に示すように、電動ユニット２０には、駆動モータ３７と駆動モータ３７を制御する制御部３１とが収容されている。駆動モータ３７は、ラダーコード２３，２４が接続されたプーリ３８に同軸に接続されている。駆動モータ３７が回転するとプーリ３８が回転しラダーコード２３，２４が上下逆方向に移動する。図３に示すように、駆動モータ３７により室内側のラダーコード２３を上方に移動させ、室外側のラダーコード２４を下方に移動させると、スラット２１は日射を遮断する閉方向に回転する。駆動モータ３７を逆に回転させると、室内側のラダーコード２３が下方に移動し、室外側のラダーコード２４が上方に移動し、スラット２１は日射が室内に入射する開方向に回転する。このように、駆動モータ３７はスラット２１を回転駆動する。   As shown in FIG. 2, the electric unit 20 contains a drive motor 37 and a control unit 31 that controls the drive motor 37. The drive motor 37 is coaxially connected to a pulley 38 to which the ladder cords 23 and 24 are connected. When the drive motor 37 rotates, the pulley 38 rotates and the rudder cords 23 and 24 move upside down. As shown in FIG. 3, when the indoor motor side ladder cord 23 is moved upward and the outdoor side ladder cord 24 is moved downward by the drive motor 37, the slats 21 rotate in the closing direction to block solar radiation. When the drive motor 37 is rotated in the opposite direction, the ladder cord 23 on the indoor side moves downward, the ladder cord 24 on the outdoor side moves upward, and the slats 21 rotate in the opening direction in which the solar radiation enters the room. In this way, the drive motor 37 rotationally drives the slat 21.

図２に示すように、制御部３１は、内部にＣＰＵ３２とメモリ３３と入力インターフェース３４と出力インターフェース３５とを備えるコンピュータである。ＣＰＵ３２とメモリ３３と入力インターフェース３４と出力インターフェース３５とはデータバス３６で接続されている。入力インターフェース３４には、後で説明する日射検出部４０の日射側温度センサ４２と日陰側温度センサ４３とが接続されている。また、出力インターフェース３５には駆動モータ３７が接続されている。日射側温度センサ４２と日陰側温度センサ４３からの信号は入力インターフェース３４から制御部３１に入力される。また、駆動モータ３７は、出力インターフェース３５から出力される制御部３１の指令によって制御される。   As shown in FIG. 2, the control unit 31 is a computer that internally includes a CPU 32, a memory 33, an input interface 34, and an output interface 35. The CPU 32, the memory 33, the input interface 34, and the output interface 35 are connected by a data bus 36. The input interface 34 is connected to a solar radiation side temperature sensor 42 and a shaded temperature sensor 43 of a solar radiation detection unit 40, which will be described later. A drive motor 37 is connected to the output interface 35. The signals from the sunlight side temperature sensor 42 and the shade side temperature sensor 43 are input to the control unit 31 from the input interface 34. Further, the drive motor 37 is controlled by a command from the control unit 31 output from the output interface 35.

図１、４に示すように、日射検出部４０は、スラット２１の室内側に配置された日射受部材４１と、日射受部材４１の室外側面４１ａに取り付けられた日射側温度センサ４２と、日射受部材４１の室内側で日射受部材４１によって日射が遮られ、日射受部材４１の日陰４４となる空間に配置される日陰側温度センサ４３とで構成されている。   As shown in FIGS. 1 and 4, the solar radiation detecting unit 40 includes a solar radiation receiving member 41 arranged on the indoor side of the slat 21, a solar radiation side temperature sensor 42 attached to an outdoor side surface 41 a of the solar radiation receiving member 41, and a solar radiation. The solar radiation is received by the solar radiation receiving member 41 on the indoor side of the light receiving member 41, and is configured by a shade side temperature sensor 43 arranged in a space serving as the shade 44 of the solar radiation receiving member 41.

日射受部材４１は薄い金属板或いは木板、プラスチック板などの平板部材である。日射が当たる日射受部材４１の室外側面４１ａは日射熱を吸収しやすくするように黒色となっている。同様に、日射側温度センサ４２の表面も黒塗りとなっている。一方、日射受部材４１の室内側面４１ｂは金属光沢面或いは白色となっている。日陰側温度センサ４３の表面も同様に白塗りとなっている。日射側温度センサ４２、日陰側温度センサ４３は例えば、熱電対のような温度センサである。   The solar radiation receiving member 41 is a flat plate member such as a thin metal plate, a wooden plate, or a plastic plate. The outdoor side surface 41a of the solar radiation receiving member 41, which is exposed to solar radiation, is black so as to easily absorb solar heat. Similarly, the surface of the solar radiation side temperature sensor 42 is also painted black. On the other hand, the indoor side surface 41b of the solar radiation receiving member 41 is a metallic glossy surface or white. The surface of the shade side temperature sensor 43 is also painted white. The sunlight side temperature sensor 42 and the shade side temperature sensor 43 are temperature sensors such as thermocouples, for example.

次に、図５を参照しながら電動ブラインド１００の動作について説明する。制御部３１は、図５のステップＳ１０１に示すように、日射側温度センサ４２、日陰側温度センサ４３で日射側温度Ｔｓと日陰側温度Ｔｒとを検出する。そして、制御部３１は、図５のステップＳ１０２に進んで検出した日射側温度Ｔｓと日陰側温度Ｔｒとの温度差ΔＴ＝Ｔｓ−Ｔｒを算出する。   Next, the operation of the electric blind 100 will be described with reference to FIG. As shown in step S101 of FIG. 5, the control unit 31 detects the sunlight side temperature Ts and the shade side temperature Tr by the sunlight side temperature sensor 42 and the shade side temperature sensor 43. Then, the control unit 31 proceeds to step S102 in FIG. 5 to calculate a temperature difference ΔT=Ts−Tr between the detected solar radiation side temperature Ts and the shade side temperature Tr.

制御部３１は、図５のステップＳ１０３で温度差ΔＴが所定の第１閾値を超えているかどうか判断する。ここで、第１閾値は、夏に日射受部材４１に日射が当たった際の日射側温度Ｔｓと日陰側温度Ｔｒとの温度差ΔＴｓよりも小さく、冬に日射受部材４１に日射が当たった際の日射側温度Ｔｓと日陰側温度Ｔｒとの温度差ΔＴｗよりも大きい温度である。第１閾値は地域によってさまざまな値を設定できるが、一例を挙げると、夏に温度差ΔＴｓが１０℃程度、冬にΔＴｗが２℃程度となる場合には、第１閾値を３℃としてもよい。   The control unit 31 determines in step S103 of FIG. 5 whether the temperature difference ΔT exceeds a predetermined first threshold value. Here, the first threshold value is smaller than the temperature difference ΔTs between the solar radiation side temperature Ts and the shade side temperature Tr when the solar radiation receiving member 41 is exposed to the solar radiation in summer, and the solar radiation receiving member 41 is exposed to the solar radiation in winter. The temperature is larger than the temperature difference ΔTw between the solar radiation side temperature Ts and the shade side temperature Tr. Although various values can be set for the first threshold value depending on the region, as an example, if the temperature difference ΔTs is about 10°C in summer and ΔTw is about 2°C in winter, the first threshold value may be 3°C. Good.

制御部３１は、図５のステップＳ１０３でＹＥＳと判断した場合には、スラット２１が開いて日射が室内に入射していると判断して図５のステップＳ１０４に進んで駆動モータ３７を回転させてスラット２１を閉方向に回転させるスラット閉動作を行う。一回のスラット閉動作はスラット２１を小角度、例えば、５°程度閉方向にスラット２１を回転させる。このように、制御部３１は駆動モータ３７によってスラット２１の回転角度を調整する。そして、制御部３１は、図５のステップＳ１０５に進んで所定の時間だけ待機し、図５のステップＳ１０１に戻る。   When the control unit 31 determines YES in step S103 of FIG. 5, it determines that the slat 21 is open and sunlight is incident on the room, and proceeds to step S104 of FIG. 5 to rotate the drive motor 37. The slat 21 is rotated in the closing direction to perform a slat closing operation. One slat closing operation rotates the slat 21 at a small angle, for example, about 5° in the closing direction. In this way, the control unit 31 adjusts the rotation angle of the slat 21 by the drive motor 37. Then, the control unit 31 proceeds to step S105 of FIG. 5, waits for a predetermined time, and returns to step S101 of FIG.

一方、制御部３１は、図５のステップＳ１０３でＮＯと判断した場合には、日射が室内に入射しない程度にスラット２１が閉じていると判断して図５のステップＳ１０６に進んで温度差ΔＴが第２閾値を超えているかどうか判断する。ここで、第２閾値は、第１閾値よりも小さい値であり、冬の温度差ΔＴｗよりも小さい値である。先の例のように冬のΔＴｗが２℃程度の場合、１℃程度にしてもよい。   On the other hand, when the control unit 31 determines NO in step S103 of FIG. 5, it determines that the slat 21 is closed to the extent that solar radiation does not enter the room, and proceeds to step S106 of FIG. Is above the second threshold value. Here, the second threshold value is smaller than the first threshold value and smaller than the winter temperature difference ΔTw. When ΔTw in winter is about 2°C as in the previous example, it may be about 1°C.

制御部３１は、図５のステップＳ１０６でＹＥＳと判断した場合には、スラット２１の角度は日射が室内に入射せず、大きな眺望が得られる最適角度になっていると判断してスラット２１を回転させずに図５のステップＳ１０５に進み、所定の時間だけ待機してステップＳ１０１に戻る。   When determining YES in step S106 of FIG. 5, the control unit 31 determines that the angle of the slat 21 is the optimal angle at which the solar radiation does not enter the room and a large view can be obtained. Without rotating, the process proceeds to step S105 of FIG. 5, waits for a predetermined time, and returns to step S101.

制御部３１は、図５のステップＳ１０６でＮＯと判断した場合には、スラット２１は、閉まりすぎであると判断して図５のステップＳ１０７に進んでスラット２１を開方向に回転させるスラット開動作を行う。一回のスラット開動作はスラット２１を小角度、例えば、５°程度開方向にスラット２１を回転させる。そして、制御部３１は、図５のステップＳ１０５に進んで所定の時間だけ待機し、図５のステップＳ１０１に戻る。   If the control unit 31 determines NO in step S106 of FIG. 5, it determines that the slat 21 is too closed and proceeds to step S107 of FIG. 5 to rotate the slat 21 in the opening direction. I do. One slat opening operation rotates the slat 21 in a small angle, for example, about 5° in the opening direction. Then, the control unit 31 proceeds to step S105 of FIG. 5, waits for a predetermined time, and returns to step S101 of FIG.

制御部３１は、図５のステップＳ１０１から１０７の動作を所定の時間間隔で繰り返して実行することにより、スラット２１の角度を日射が室内に入射せず、大きな眺望が得られる最適角度に調整することができる。   The control unit 31 repeatedly executes the operations of steps S101 to 107 of FIG. 5 at predetermined time intervals to adjust the angle of the slat 21 to the optimum angle at which the solar radiation does not enter the room and a large view can be obtained. be able to.

また、第１閾値を夏の温度差ΔＴｓよりも小さく冬の温度差ΔＴｗよりも大きい値としているので、温度差ΔＴが第１閾値を超える夏には、スラット２１は閉まる方向に動作して日射が室内に入射することを抑制し、温度差ΔＴが第１閾値を超えない冬にはスラット２１は閉まる方向に動作せず大きな眺望とすることができる。   Further, since the first threshold value is set to a value smaller than the temperature difference ΔTs in summer and larger than the temperature difference ΔTw in winter, in the summer when the temperature difference ΔT exceeds the first threshold value, the slat 21 moves toward the closing direction and insolates. Can be prevented from entering the room, and in the winter when the temperature difference ΔT does not exceed the first threshold value, the slat 21 does not operate in the closing direction and a large view can be obtained.

以上の実施形態では、第１閾値、第２閾値の例を示したが、第１閾値、第２閾値はこれに限らず使用者が調整できるようにしてもよい。例えば、第１閾値、第２閾値を大きめに設定するとよりよく日射の遮断を行うことができる。また、第１閾値、第２閾値を小さめに設定することにより、より大きな眺望を得ることができる。   In the above embodiment, examples of the first threshold value and the second threshold value are shown, but the first threshold value and the second threshold value are not limited to this, and may be adjustable by the user. For example, if the first threshold value and the second threshold value are set to be relatively large, the solar radiation can be blocked better. Further, a larger view can be obtained by setting the first threshold value and the second threshold value to be smaller.

以上説明したように、実施形態の電動ブラインド１００は、簡便な構成で日射の室内への入射を抑制しつつスラット２１を通した眺望を大きくすることができる。   As described above, the electric blind 100 of the embodiment can increase the view through the slats 21 while suppressing the incidence of solar radiation into the room with a simple configuration.

１０ 窓、１１ 窓ガラス、２０ 電動ユニット、２１ スラット、２２ 昇降テープ、２３，２４ ラダーコード、２５ ボトムレール、３１ 制御部、３２ ＣＰＵ、３３ メモリ、３４ 入力インターフェース、３５ 出力インターフェース、３６ データバス、３７ 駆動モータ、３８ プーリ、４０ 日射検出部、４１ 日射受部材、４１ａ 室外側面、４１ｂ 室内側面、４２ 日射側温度センサ、４３ 日陰側温度センサ、４４ 日陰、１００ 電動ブラインド。   10 windows, 11 window glass, 20 electric unit, 21 slat, 22 lifting tape, 23, 24 ladder code, 25 bottom rail, 31 control section, 32 CPU, 33 memory, 34 input interface, 35 output interface, 36 data bus, 37 drive motor, 38 pulley, 40 solar radiation detector, 41 solar radiation receiving member, 41a outdoor side surface, 41b indoor side surface, 42 solar side temperature sensor, 43 shade side temperature sensor, 44 shade, 100 electric blind.

Claims (3)

窓の室内側に取り付けられる電動ブラインドであって、
スラットと、
前記スラットを回転駆動するモータと、
前記スラットの室内側に設けられた日射検出部と、
前記モータによって前記スラットの回転角度を調整する制御部と、を有し、
前記日射検出部は、
前記スラットの室内側に設けられた日射受部材と、
前記日射受部材の室外側面に取り付けられた日射側温度センサと、
前記日射受部材の室内側で前記日射受部材によって日射が遮られる空間に配置された日陰側温度センサと、を含み、
前記制御部は、前記日射側温度センサによって検出した日射側温度と前記日陰側温度センサで検出した日陰側温度とに基づいて、前記スラットの回転角度を調整すること、
を特徴とする電動ブラインド。 An electric blind that is attached to the inside of the window,
With slats,
A motor for rotationally driving the slat,
A solar radiation detector provided on the indoor side of the slat,
A control unit for adjusting the rotation angle of the slat by the motor,
The solar radiation detection unit,
A solar radiation receiving member provided on the indoor side of the slat,
A solar radiation side temperature sensor attached to the outdoor side surface of the solar radiation receiving member,
A shade side temperature sensor arranged in a space where the solar radiation is blocked by the solar radiation receiving member on the indoor side of the solar radiation receiving member,
The control unit adjusts the rotation angle of the slat based on the shade side temperature detected by the shade side temperature sensor and the shade side temperature detected by the shade side temperature sensor,
An electric blind characterized by. 請求項１に記載の電動ブラインドであって、
前記制御部は、
前記日射側温度と前記日陰側温度との温度差が第１閾値を超える場合には、前記スラットを閉める方向に回転させ、
前記日射側温度と前記日陰側温度との温度差が前記第１閾値よりも小さい第２閾値以下の場合には、前記スラットを開ける方向に回転させること、
を特徴とする電動ブラインド。 The electric blind according to claim 1,
The control unit is
When the temperature difference between the solar radiation side temperature and the shade side temperature exceeds a first threshold value, the slat is rotated in a closing direction,
When the temperature difference between the solar radiation side temperature and the shade side temperature is equal to or less than a second threshold value that is smaller than the first threshold value, rotating the slat in the opening direction,
An electric blind characterized by. 請求項２に記載の電動ブラインドであって、
前記第１閾値は、夏に前記日射受部材に日射が当たった際の前記日射側温度と前記日陰側温度との温度差よりも小さく、冬に前記日射受部材に日射が当たった際の前記日射側温度と前記日陰側温度との温度差よりも大きいこと、
を特徴とする電動ブラインド。 The electric blind according to claim 2,
The first threshold value is smaller than a temperature difference between the solar radiation side temperature and the shade side temperature when the solar radiation receiving member is exposed to the solar radiation in the summer, and when the solar radiation receiving member is exposed to the solar radiation in winter, Being larger than the temperature difference between the sunlight side temperature and the shade side temperature,
An electric blind characterized by.
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JPS5457344A (en) * 1977-10-14 1979-05-09 Toshiba Corp Control device for building
JPH0444589A (en) * 1990-06-11 1992-02-14 Nippon Steel Corp Blind controlling mechanism
JPH06257357A (en) * 1993-03-05 1994-09-13 Fujita Corp Opening/closing control device for motor-driven blind
JP2005105732A (en) * 2003-10-01 2005-04-21 Mitsubishi Jisho Sekkei Inc Curtain wall with ventilation function and building provided with the same
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