外观

Appearance

车库门主要组成包括门板，门框，滑轨，弹簧和开门器等外在部件，门板目前常见材质有木材，聚合物，和金属，前两种住宅常用。

Garage doors mainly consist of door panels, door frames, slide rails, springs and door openers. The door panels are usually made of wood, polymer and metal, and the first two kinds of houses are commonly used.

机械

Mechanics

车库门最主要的部件就是开门器，所有遥控，密码，安全感应等功能的实现都依赖高质量的开门器.如果说排名最应该买的质高价高的电器，我相信开门器绝对应该排第一，想想每天反复的开启，经过，就不难想像它的重要性。

The main components of the garage door is open for all remote control, password, open the door for safety induction functions depend on high quality. If the ranking should buy high quality appliances, I believe that the door opener should definitely think of the first row, repeated every day to open, after, it is not difficult to imagine the importance it.

常见开门器的配套组件包括:手动开关，遥控器和反向安全感应器。

The components of the common door opener include manual switch, remote control and reverse safety inductor.

机械部分另一个重要易损组件弹簧，门的开启关闭所需动能就来源于此，而非开门器，而它们之间的正确配套与安装决定了开门器的寿命，在后面保养部分会详述此问题。

Another important part of the mechanical part is spring. The kinetic energy required for the opening and closing of the door comes from this, rather than the door opener. The correct matching and installation between them decide the service life of the door opener. The maintenance part will elaborate on this problem in detail.