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CN107076502B 用于冰箱的门打开和关闭装置及其控制方法 有权

用于冰箱的门打开和关闭装置及其控制方法
摘要：
一种用于冰箱的门打开和关闭装置包括：门，门被联接到主体；打开和关闭单元，打开和关闭单元包括用于通过马达产生旋转力的驱动单元和用于打开或者关闭门的门旋转机构；用于测量从马达产生的反电动势的装置；电力电路，电力电路被连接用于向马达供应电力；用于向该装置传递马达的反电动势的电路；控制开关，控制开关用于选择性地将马达连接到该电路或者电力电路；和控制单元，控制单元用于当马达被启动时将控制开关连接到电力电路，并且当马达被停用时将控制开关连接到该电路并且打开或者关闭门，其中当预定的反电动势被输入该装置时，控制单元关闭门。
摘要（英）：

A door opening and closing device for a refrigerator includes a door coupled to a main body, an opening and closing unit including a drive unit for generating rotational force by means of a motor and a door rotating mechanism for opening or closing the door, a device for measuring a back electromotive force generated from the motor, a power circuit connected for supplying power to the motor, a circuit for transmitting back electromotive force of the motor to the device, a control switch for selectively connecting the motor to the circuit or the power circuit, and a control unit for connecting the control switch to the power circuit when the motor is activated, and connecting the control switch to the circuit and opening or closing the door when the motor is deactivated, wherein the control unit closes the door when a predetermined back electromotive force is input to the device.

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