PROBLEM TO BE SOLVED: To provide an inexpensive power window drive unit mounted on a vehicle.SOLUTION: The power window drive unit has a drive circuit 80 which includes: a motor 10 that drives a window glass to raise or lower; a first down-drive switch 30 and a second down-drive switch 35 constituting a first switch group for forward-driving the motor 10; and a first up-drive switch 20 and a second up-drive switch 25 constituting a second switch group for reverse-driving the motor 10. A third down-drive switch 40 is connected to the first down-drive switch 30 in parallel therewith. When a large torque is required for forward-driving the motor 10, a third switch group including the third down-drive switch 40 and the second down-drive switch 35 is turned ON to drive the motor 10. The third switch group is constituted of switches each having an enough capacity for collector loss relevant to a stalling current on the motor 10.

    【課題】車両に搭載される低価格なパワーウィンドウ駆動装置を提供する。【解決手段】ウィンドウガラスを上昇および下降動作させるモータ10と、モータ10を正回転させる第1スイッチ群を構成する第1の下降駆動スイッチ30および第2の下降駆動スイッチ35と、モータ10を逆回転させる第2スイッチ群を構成する第1の上昇駆動スイッチ20および第2の上昇駆動スイッチ25とから構成された駆動回路80を備える。第1の下降駆動スイッチ30に対して並列に第3の下降駆動スイッチ40が接続され、モータ10を正回転させる大きいトルクが必要なときは、第3の下降駆動スイッチ40および第2の下降駆動スイッチ35とで構成される第3スイッチ群に切り換えてモータ10を駆動する。第3スイッチ群は、モータ10の停動電流に対してコレクタ損失の性能余裕のあるスイッチから構成される。【選択図】図1


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    Title :

    POWER WINDOW DRIVE UNIT


    Additional title:

    パワーウィンドウ駆動装置


    Contributors:
    OWADA NORIYASU (author) / SATO OSAMU (author)

    Publication date :

    2015-09-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung



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