Door operator with an abnormal voltage protection function and method for protection of a door operator from an abnormal voltage

    公开(公告)号:US20230116603A1

    公开(公告)日:2023-04-13

    申请号:US17857323

    申请日:2022-07-05

    Abstract: The present invention relates to a door operator with an abnormal voltage protection function and a method for abnormal voltage protection of a door operator. According to the present invention, before a door operator motor is electrically energized by an external power source, a controller determines whether the external power source meets the rated voltage of the door operator. In the case that the external power source meets the rated voltage, the controller activates the door operator motor; in the case that the external power source does not meet the rated voltage, the door operator motor is deactivated, and the controller issues a warning.

    Door operator with high-speed operation and fire escape functions

    公开(公告)号:US20200080373A1

    公开(公告)日:2020-03-12

    申请号:US16251268

    申请日:2019-01-18

    Abstract: A door operator with high-speed operation and fire escape functions comprises a motor, a high-speed centrifugal brake module, a centrifugal reduction module, a central shaft locking module and a first and second clutch module. In the stationary state, the high-speed centrifugal brake module, centrifugal reduction module and central shaft locking module are connected to each other, and the drive shaft of the motor is locked by the central shaft locking module. In the normal operation, the first clutch module disengages the high-speed centrifugal brake module from the centrifugal reduction module, and the drive shaft is rotatable at high speed. In the event of fire escape, the second clutch module disengages centrifugal reduction module from central shaft locking module, and the drive shaft rotates at a lower speed. The device will provide high-speed rotation under normal operation, and automatically close the door panel at a gradually lowered speed in the event of fire escape.

    CONTROL SYSTEM FOR FIRE DOOR AND A DOOR OPERATOR HAVING THE SAME

    公开(公告)号:US20200080360A1

    公开(公告)日:2020-03-12

    申请号:US16296340

    申请日:2019-03-08

    Abstract: A control system for a fire door and a door operator having the same are disclosed. The control system includes a fire door actuating module, a first control module and a second control module. The fire door actuating module is used to actuate a fire door. The first control module is electrically connected with the fire door actuating module to control the operation of the fire door actuating module. The second control module is electrically connected to the first control module and the fire door actuating module. The second control module monitors the operation of the first control module. When the operation of the first control module is abnormal, the second control module controls the operation of the fire door actuating module.

    DOOR OPERATOR DEVICE AND SECTIONAL OVERHEAD DOOR SYSTEM WITH ANTI-PRESSURE AND ANTI-THEFT FUNCTIONS

    公开(公告)号:US20240344381A1

    公开(公告)日:2024-10-17

    申请号:US18598116

    申请日:2024-03-07

    Abstract: The present invention relates to a door operator device and sectional overhead door system with anti-pressure and anti-theft functions, principally having a small-tooth-difference reduction gear and a ratchet-locking device. An input end of the small-tooth-difference reduction gear is kinematically connected to an input shaft; an output end of the small-tooth-difference reduction gear is kinematically connected to a shaft; the small-tooth-difference reduction gear includes a ratchet on its outer circumference; the ratchet-locking device is controlled to selectively lock or unlock the ratchet. When the ratchet-locking device locks the ratchet, it can realize the anti-theft function; when the ratchet-locking device unlocks the ratchet, and the shaft is driven by the input shaft through the small-tooth-difference reduction gear, but the shaft decelerates, stops, or even reverses due to an obstacle encountered or other factors, the input shaft and the small-tooth-difference reduction gear will idle automatically.

    Machine Mechanism of a Rolling Door Operator
    6.
    发明申请
    Machine Mechanism of a Rolling Door Operator 审中-公开
    滚动门操作员的机械机构

    公开(公告)号:US20140318719A1

    公开(公告)日:2014-10-30

    申请号:US13874356

    申请日:2013-04-30

    Abstract: In a door operator having a driving end and a weight carrying end, an electric motor mechanism, a first electromagnetic clutch mechanism, a combination pull-chain disc and brake, a second electromagnetic clutch mechanism are disposed in sequence between the driving end and the weight carrying end, the mechanisms being connected by rotating shafts and a hollow shaft, in which when the electric motor mechanism is electrically powered, the first electromagnetic clutch mechanism moves the hollow shaft to separate from a brake device, and the second electromagnetic clutch mechanism connects the driving end to the weight carrying end; and when the electric motor mechanism is not electrically powered, the first electromagnetic clutch mechanism connects the hollow shaft to the brake device, and the second electromagnetic clutch mechanism separates the driving end from the weight carrying end.

    Abstract translation: 在具有驱动端和重物承载端的门操作器中,电动机构,第一电磁离合器机构,组合拉链盘和制动器,第二电磁离合器机构依次设置在驱动端和重物之间 所述机构通过旋转轴和中空轴连接,其中当所述电动机构电动时,所述第一电磁离合器机构使所述空心轴与制动装置分离,并且所述第二电磁离合器机构将所述第二电磁离合器机构 驱动端到重物承载端; 并且当电动机构不是电动时,第一电磁离合器机构将中空轴连接到制动装置,并且第二电磁离合器机构将驱动端与配重端分开。

    DOOR MACHINE OF FIREPROOF DOOR
    7.
    发明申请
    DOOR MACHINE OF FIREPROOF DOOR 有权
    防火门门机

    公开(公告)号:US20130025804A1

    公开(公告)日:2013-01-31

    申请号:US13292177

    申请日:2011-11-09

    Abstract: A door machine of a fireproof door comprises an input end to be actuated by an input axle; an output end loaded with weight of door panels, the loading force of which is transmitted back to a central axle through an output axle; a clutch mechanism normally connecting the central axle with the input axle together; a brake mechanism including a torsion spring which is integrated with the input axle of the input end and one end of which bears the loading force came from the central axle to shrink the inner diameter thereof so that the input axle is in an immobilized state; when an external force is applied to the input end, the other end of the torsion spring resisting against the weight of the door panels to expand the inner diameter thereof so that the input axle is rotated.

    Abstract translation: 防火门的门机包括由输入轴致动的输入端; 输出端装载有门板的重量,其装载力通过输出轴传回中心轴; 通常将中心轴与输入轴连接在一起的离合器机构; 包括与输入端的输入轴一体化并且其一端承受载荷力的扭转弹簧的制动机构来自中心轴,以收缩其内径,使得输入轴处于固定状态; 当向输入端施加外力时,扭力弹簧的另一端抵抗门板的重量以扩大其内径,使输入轴旋转。

    Curtain control system and curtain control method

    公开(公告)号:US20240188745A1

    公开(公告)日:2024-06-13

    申请号:US18320236

    申请日:2023-05-19

    CPC classification number: A47H5/0325 A47H2005/025

    Abstract: The present invention relates to a curtain control system and a curtain control method. When a controller receives a curtain-releasing signal, a braking module releases a curtain so as to lower it, a current position detecting module detects an absolute position of the curtain, and the controller calculates a current velocity and a current acceleration of the curtain according to a variation per unit time of the absolute position. When the current velocity is equal to zero or the current acceleration is smaller than zero, the controller controls a motor to lift the curtain or controls the braking module to hold the curtain at a current position. Accordingly, the present invention uses the absolute position to calculate the current velocity and the current acceleration of the curtain so as to determine whether the curtain has encountered an obstacle.

    Sectional lifting door system
    9.
    发明公开

    公开(公告)号:US20230313592A1

    公开(公告)日:2023-10-05

    申请号:US18170610

    申请日:2023-02-17

    Abstract: The present invention relates to a sectional lifting door system. When the system is in normal operation, a door operator drives a cable drum to wind or unwind a cable for lifting or lowering slats. During a process of lowering the slats, if the slats is stopped or slowed unexpectedly (e.g. the slats hit an obstacle below), the door operator is disconnected from a shaft automatically. At this time, even if the door operator is still activated, the shaft does not rotate, the cable drum does not unwind the cable so that a certain tension force can be maintained on the cable and that the cable is prevented from loosening from the drum, thereby preventing the slats from falling off. Also, it can avoid the situation that the weight of the slats is completely applied to the obstacle because the cable drum continuously unwinds the cable.

    DUAL-VOLTAGE DOOR OPERATOR CONTROL SYSTEM
    10.
    发明公开

    公开(公告)号:US20230142124A1

    公开(公告)日:2023-05-11

    申请号:US18050498

    申请日:2022-10-28

    CPC classification number: H02P7/20 E05F15/60 E05Y2201/434 E05Y2900/132

    Abstract: A dual-voltage door operator control system comprises a contactor, a high-voltage connector, a low-voltage connector, a rectifier and a brake. When a door operator motor is electrically coupled to the low-voltage connector, the rectifier full-wave rectifies an external power source and then electrically energizes the brake. When the door operator motor is electrically coupled to the high-voltage connector, the rectifier half-wave rectifies the external power source and then electrically energizes the brake. Accordingly, the door operator motor can be connected to the high-voltage connector or the low-voltage connector according to the specification of the external power source provided at the site. Moreover, the invention is also further integrated with the brake of a single specification, and no matter whether the external power source is a high-voltage power source or a low-voltage power source, it can electrically energize the brake through the rectifier.

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