Lidar

A lidar, comprising:

• an emitting chamber, wherein components disposed within the emitting chamber comprise at least one first printed circuit board and a film-shaped first heat dissipation component corresponding to the first printed circuit board, wherein a laser emitter is disposed on the first printed circuit board, and the first printed circuit board is configured to drive the laser emitter to emit a laser pulse, wherein the film-shaped first heat dissipation component comprises a thermally conductive assembly portion and at least one heat dissipation assembly portion, and wherein the thermally conductive assembly portion and the at least one heat dissipation assembly portion are not coplanar;
• the thermally conductive assembly portion is attached on a back face of the first printed circuit board corresponding to the thermally conductive assembly portion;
• at least a portion of the at least one heat dissipation assembly portion is connected to a chamber wall forming the emitting chamber,
• wherein the chamber wall forming the emitting chamber comprises a central shaft portion of the lidar, a housing, and an outer housing of the emitting chamber,
• wherein the at least one heat dissipation assembly portion comprises a first heat dissipation assembly portion, a second heat dissipation assembly portion, and a third heat dissipation assembly portion, and wherein the thermally conductive assembly portion is not coplanar with the first heat dissipation assembly portion, the second heat dissipation assembly portion, and the third heat dissipation assembly portion;
• wherein the first heat dissipation assembly portion is connected to the housing;
• wherein the second heat dissipation assembly portion is connected to the central shaft portion of the lidar;
• and
• wherein the third heat dissipation assembly portion is connected to the outer housing of the emitting chamber, and
• wherein the first heat dissipation assembly portion, the second heat dissipation assembly portion, and the third heat dissipation assembly portion are respectively connected to different side surfaces of the thermally conductive assembly portion.