Abstract: A button structure is provided and includes a support bracket and a button. The support bracket has two opposite edges, a first concave portion, a second concave portion, and a position limiting protruding point. The first and second concave portions are respectively located at the two opposite edges, and the position limiting protruding point protrudes from the second concave portion. The button is located on the support bracket and includes a body portion, two neck portions and two stop portions. The two neck portions are located on two opposite ends of the body portion, and are respectively coupled to the first and second concave portions. The neck portion coupled to the second concave portion is positioned by the position limiting protruding point. The two stop portions are respectively connected to a side of the two neck portions facing away from the body portion.

Abstract: A button structure is provided and includes a support bracket and a button. The support bracket has two opposite edges, a first concave portion, a second concave portion, and a position limiting protruding point. The first and second concave portions are respectively located at the two opposite edges, and the position limiting protruding point protrudes from the second concave portion. The button is located on the support bracket and includes a body portion, two neck portions and two stop portions. The two neck portions are located on two opposite ends of the body portion, and are respectively coupled to the first and second concave portions. The neck portion coupled to the second concave portion is positioned by the position limiting protruding point. The two stop portions are respectively connected to a side of the two neck portions facing away from the body portion.

Abstract: A boss for securing a pair of mainboards includes a circular top and a plurality of first flexible legs. The first flexible legs are disposed on one side of the circular top and are separated from each other. Each of the first flexible legs includes a tilted wall and a pressing component. The tilted wall is formed on a surface of the first flexible leg that faces another first flexible leg. The pressing component is formed on one end of the first flexible leg away from the circular top. The tilted walls of all the first flexible legs cooperatively define a tapered channel. The tapered channel can be expanded.

Abstract: A boss for securing a pair of mainboards includes a circular top and a plurality of first flexible legs. The first flexible legs are disposed on one side of the circular top and are separated from each other. Each of the first flexible legs includes a tilted wall and a pressing component. The tilted wall is formed on a surface of the first flexible leg that faces another first flexible leg. The pressing component is formed on one end of the first flexible leg away from the circular top. The tilted walls of all the first flexible legs cooperatively define a tapered channel. The tapered channel can be expanded.