Patent ID: 11879627
Assignee: XIHE TECHNOLOGY (SHENZHEN) CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A new heat dissipation structure for sealed optical machines, comprising an optical machine housing (1), an LED light source (10), a light cone (9), a first Fresnel lens (7), heat insulating glass (6), a liquid crystal screen (5), a second Fresnel lens (4), and a reflector (2); an upper part of the optical machine housing is installed with a second heat dissipation fan (11); the LED light source (10), the light cone (9), the first Fresnel lens (7), the heat insulating glass (6), the liquid crystal screen (5), the second Fresnel lens (4), and the reflector (2) are arranged in sequence inside the optical machine housing; a first heat dissipation fan (8) is located on a front side of the LED light source and the light cone (9), and the second heat dissipation fan (11) is located above the reflector; a shell of the second heat dissipation fan is integrated with a structure of the optical machine; a lens (3) is located on a front side of the reflector (2);
a lower part of the optical machine housing is installed with an LED light source radiator (13), an external radiator (14), and an internal radiator (16); the LED light source radiator (13), the external radiator (14), and the internal radiator (16) are arranged in sequence;
a sealed space is formed between an interface of the optical machine housing (1), the internal radiator (16), and the external radiator (15) and the first Fresnel lens (7); the airflow blown by the second heat dissipation fan (11) in the sealed space is guided by the housing and then flows through the liquid crystal screen (5) with a higher temperature; after taking away the heat from the liquid crystal screen, the airflow will exchange heat with the internal radiator (16) to cool down, and then flow back to the second heat dissipation fan (11) after passing through the reflector (2);
the external radiator (14) and the LED light source radiator (13) are located at the same horizontal position; the airflow blown out by the first heat dissipation fan (8) passes through an inclined surface of the optical machine housing and then enters the external radiator (14) and the LED light source radiator (13), taking away the heat from the LED light source (10) and the sealed space.