US 11,454,871 B2 · Laser projection apparatus

Abstract

Embodiments of the present disclosure describe a laser projection apparatus. The laser projection apparatus includes a laser source system, an optical engine, a lens system that are sequentially connected in a laser beam propagation direction, a plurality of circuit boards, a first heat dissipation system, and a second heat dissipation system. The first heat dissipation system is configured to dissipate heat of a first laser assembly in the laser source system, the optical engine, and the plurality of circuit boards, and to make airflow sequentially flow through the above components to form a first heat dissipation path. The second heat dissipation system is configured to dissipate heat of a second laser assembly in the laser source system, the lens system, and the plurality of circuit boards, and to make airflow sequentially flow through the above components to form a second heat dissipation path.

Claims20

Dependent claims

A laser projection apparatus, comprising:

a laser source system, an optical engine, and a lens system that are sequentially connected along a laser beam propagation direction;
a plurality of circuit boards;
a first heat dissipation system, wherein the first heat dissipation system is configured to dissipate heat of a first laser assembly in the laser source system, the optical engine and the plurality of circuit boards, and to make airflow sequentially flow through the first laser assembly, the optical engine and the plurality of circuit boards to form a first heat dissipation path;
and
a second heat dissipation system, wherein the second heat dissipation system is configured to dissipate heat of a second laser assembly in the laser source system, the lens system and the plurality of circuit boards, and to make airflow sequentially flow through the second laser assembly, the lens system and the plurality of circuit boards to form a second heat dissipation path.

2 more elements

A laser projection apparatus, comprising:

a laser source system, an optical engine, a lens system that are sequentially connected along a laser beam propagation direction;
a plurality of circuit boards;
and
a heat dissipation system comprising:
a liquid-cooling heat dissipation device comprising a first cooling head, a cooling drain, and a plurality of pipes with cooling medium inside, wherein the first cooling head and the cooling drain are connected through at least one of the plurality of pipes, and the first cooling head is disposed on a first side wall of a housing of the laser source system,
an air-cooling heat dissipation device comprising at least one first heat dissipation fin, a plurality of heat pipes, and a heat conducting plate, wherein the plurality of heat pipes are fixed on a second side wall of the housing of the laser source system through the heat conducting plate and extend into the at least one first heat dissipation fin, and
a fan assembly configured to drive airflow to sequentially flow through the cooling drain, the at least one first heat dissipation fin and the plurality of circuit boards to form a heat dissipation path.

4 more elements

Dependencies are inferred from the claim text.

Laser projection apparatus

Life of this patent

Laser projection apparatus

Life of this patent

Abstract

Claims20