Transmitting assembly and laser radar

The utility model specifically discloses a transmitting assembly and a laser radar, and belongs to the technical field of radar equipment. The transmitting assembly comprises a base, a circuit board, a connecting piece and a shielding layer, the base comprises a shell, an inner cavity is defined by the shell, and the shell is provided with a through groove communicated with the inner cavity; the circuit board is arranged in the inner cavity and covers the through groove; the connecting piece penetrates through the through groove, the peripheral wall of the connecting piece is welded to the inner wall of the through groove, and the end, facing the inner cavity, of the connecting piece is welded to the circuit board. The shielding layer is arranged on the shell, wraps the through groove and is used for blocking electromagnetic waves generated by the circuit board. According to the utility model, the connection between the circuit board and the housing is firmer and more durable, the stability and durability of