Relay switching device integrated with pre-charging system

There is provided a relay switching apparatus including: a relay housing; a first upper fixed terminal and a second upper fixed terminal arranged side by side through the inside and the outside of the relay housing; a first lower fixed terminal electrically connected to the first upper fixed terminal and arranged below the first upper fixed terminal at a predetermined distance from the first upper fixed terminal, and a second lower fixed terminal electrically connected to the second upper fixed terminal and arranged below the second upper fixed terminal at a predetermined distance from the second upper fixed terminal; and a circuit mode switching module configured to selectively contact the first and second upper fixed terminals or the first and second lower fixed terminals by moving a predetermined distance. 提供一种继电器开关设备，包括：继电器外壳；第一上固定端子和第二上固定端子，其通过继电器外壳的内部和外部并排布置；第一下固定端子，其电连接到第一上固定端子并在第一上固定端子下方布置为与第一上固定端子相隔预定距离，以及第二下固定端子，其电连接到第二上固定端子并在第二上固定端子下方布置为与第二上固定端子相隔预定距离；以及电路模式切换模块，其被设置为通过移动预定距离来选择性地接触第一和第二上固定端子或者第一和第